Initial commit: EGBE chatbot template

Stripped from vercel/chatbot (Apache 2.0):
- Dropped @vercel/* packages and AI Gateway
- Removed artifacts feature (code/text/sheet/image side panel)
- Switched AI provider to @ai-sdk/openai-compatible -> EGBE LiteLLM
- Replaced Vercel Blob upload with data URLs
- Dropped Redis resumable streams and rate limiter (in-memory now)
- Added Dockerfile (Next.js standalone) + entrypoint that runs migrations
- Wired DATABASE_URL, EGBE_AI_API_URL/KEY, NEXT_PUBLIC_BASE_URL for app-deploy.sh

.dockerignore

@@ -0,0 +1,15 @@
+Dockerfile
+.dockerignore
+.git
+.gitignore
+.next
+node_modules
+npm-debug.log
+README.md
+.env*
+!.env.example
+tests
+playwright-report
+test-results
+.vscode
+.idea

.env.example

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+# NextAuth secret — generate with: openssl rand -base64 32
+AUTH_SECRET=replace-me
+
+# Postgres connection string (provisioned automatically by app-deploy.sh)
+DATABASE_URL=postgres://user:pass@host:5432/db
+
+# EGBE LiteLLM proxy — auto-injected by app-deploy.sh from the deploying instance
+EGBE_AI_API_URL=https://proxy.gcp.egbe.dev/v1
+EGBE_AI_API_KEY=
+
+# Public origin of this app — auto-injected by app-deploy.sh
+NEXT_PUBLIC_BASE_URL=http://localhost:3000

.gitignore

@@ -0,0 +1,27 @@
+node_modules
+.pnp
+.pnp.js
+coverage
+.next/
+out/
+build
+.DS_Store
+*.pem
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+.turbo
+.env
+.vercel
+.env*.local
+/test-results/
+/playwright-report/
+/blob-report/
+/playwright/*
+next-env.d.ts
+tsconfig.tsbuildinfo

.vscode/extensions.json

@@ -0,0 +1,3 @@
+{
+  "recommendations": ["biomejs.biome"]
+}

.vscode/settings.json

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+{
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
+  "[javascript]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[typescript]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[javascriptreact]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[typescriptreact]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[json]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[jsonc]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[css]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[graphql]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "editor.formatOnSave": true,
+  "editor.formatOnPaste": true,
+  "emmet.showExpandedAbbreviation": "never",
+  "editor.codeActionsOnSave": {
+    "source.fixAll.biome": "explicit",
+    "source.organizeImports.biome": "explicit"
+  },
+  "[html]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[vue]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[svelte]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[yaml]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[markdown]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[mdx]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  }
+}

Dockerfile

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+FROM node:20-alpine AS base
+
+# --- deps ---
+FROM base AS deps
+RUN apk add --no-cache libc6-compat
+WORKDIR /app
+RUN corepack enable
+COPY package.json pnpm-lock.yaml* ./
+RUN pnpm install --frozen-lockfile
+
+# --- builder ---
+FROM base AS builder
+WORKDIR /app
+RUN corepack enable
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+ENV NEXT_TELEMETRY_DISABLED=1
+RUN pnpm run build
+
+# --- runner ---
+FROM base AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV HOSTNAME=0.0.0.0
+ENV PORT=3000
+
+RUN addgroup --system --gid 1001 nodejs \
+ && adduser --system --uid 1001 nextjs
+
+COPY --from=builder /app/public ./public
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+COPY --from=builder --chown=nextjs:nodejs /app/lib/db/migrations ./lib/db/migrations
+COPY --from=builder --chown=nextjs:nodejs /app/lib/db/migrate.ts ./lib/db/migrate.ts
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules/drizzle-orm ./node_modules/drizzle-orm
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules/postgres ./node_modules/postgres
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules/dotenv ./node_modules/dotenv
+COPY --chown=nextjs:nodejs docker-entrypoint.sh ./docker-entrypoint.sh
+RUN chmod +x ./docker-entrypoint.sh
+
+USER nextjs
+EXPOSE 3000
+ENTRYPOINT ["./docker-entrypoint.sh"]
+CMD ["node", "server.js"]

LICENSE

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+Copyright 2024 Vercel, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

README.md

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+# EGBE Chatbot Template
+
+Next.js chatbot wired to the EGBE LiteLLM proxy. Based on [vercel/chatbot](https://github.com/vercel/chatbot) (Apache 2.0), stripped of Vercel-specific bits and rewired for our infra.
+
+## Stack
+
+- **Next.js 16** (App Router, standalone output)
+- **AI SDK** + `@ai-sdk/openai-compatible` → routes to `EGBE_AI_API_URL` (our LiteLLM)
+- **NextAuth** (credentials + guest)
+- **Drizzle ORM** + Postgres (DB gateway)
+- **shadcn/ui** + Tailwind
+
+## Available models (via LiteLLM)
+
+`claude-sonnet`, `claude-haiku`, `gpt-5.4`, `gpt-5.4-mini`, `kimi-k2.6`, `minimax-m2.7`, `qwen3-coder`.
+
+Edit `lib/ai/models.ts` to add or remove.
+
+## Deploy (from inside an OpenClaw instance)
+
+```bash
+${SKILLS_DIR}/scripts/app-deploy.sh <slug> chatbot-template
+```
+
+`app-deploy.sh` auto-injects:
+- `DATABASE_URL` (per-app Postgres)
+- `EGBE_AI_API_URL`, `EGBE_AI_API_KEY` (instance LiteLLM key)
+- `NEXT_PUBLIC_BASE_URL` (the deployed `*.p.egbe.app` host)
+
+You also need `AUTH_SECRET` — set it via `APP_ENV_JSON`:
+
+```bash
+APP_ENV_JSON='{"AUTH_SECRET":"'$(openssl rand -base64 32)'"}' \
+  ${SKILLS_DIR}/scripts/app-deploy.sh mychat chatbot-template
+```
+
+## Local dev
+
+```bash
+cp .env.example .env.local
+# fill in DATABASE_URL, EGBE_AI_API_KEY, AUTH_SECRET
+pnpm install
+pnpm db:migrate
+pnpm dev
+```
+
+## Tracking upstream
+
+Pull new vercel/chatbot features manually — `origin/upstream` is not configured by default here. Add it back with:
+
+```bash
+git remote add upstream https://github.com/vercel/chatbot.git
+```
+
+## License
+
+Apache 2.0 — see `LICENSE`. Derivative work of Vercel, Inc.'s [chatbot](https://github.com/vercel/chatbot).

app/(auth)/actions.ts

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+"use server";
+
+import { z } from "zod";
+
+import { createUser, getUser } from "@/lib/db/queries";
+
+import { signIn } from "./auth";
+
+const authFormSchema = z.object({
+  email: z.string().email(),
+  password: z.string().min(6),
+});
+
+export type LoginActionState = {
+  status: "idle" | "in_progress" | "success" | "failed" | "invalid_data";
+};
+
+export const login = async (
+  _: LoginActionState,
+  formData: FormData
+): Promise<LoginActionState> => {
+  try {
+    const validatedData = authFormSchema.parse({
+      email: formData.get("email"),
+      password: formData.get("password"),
+    });
+
+    await signIn("credentials", {
+      email: validatedData.email,
+      password: validatedData.password,
+      redirect: false,
+    });
+
+    return { status: "success" };
+  } catch (error) {
+    if (error instanceof z.ZodError) {
+      return { status: "invalid_data" };
+    }
+
+    return { status: "failed" };
+  }
+};
+
+export type RegisterActionState = {
+  status:
+    | "idle"
+    | "in_progress"
+    | "success"
+    | "failed"
+    | "user_exists"
+    | "invalid_data";
+};
+
+export const register = async (
+  _: RegisterActionState,
+  formData: FormData
+): Promise<RegisterActionState> => {
+  try {
+    const validatedData = authFormSchema.parse({
+      email: formData.get("email"),
+      password: formData.get("password"),
+    });
+
+    const [user] = await getUser(validatedData.email);
+
+    if (user) {
+      return { status: "user_exists" } as RegisterActionState;
+    }
+    await createUser(validatedData.email, validatedData.password);
+    await signIn("credentials", {
+      email: validatedData.email,
+      password: validatedData.password,
+      redirect: false,
+    });
+
+    return { status: "success" };
+  } catch (error) {
+    if (error instanceof z.ZodError) {
+      return { status: "invalid_data" };
+    }
+
+    return { status: "failed" };
+  }
+};

app/(auth)/api/auth/[...nextauth]/route.ts

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+export { GET, POST } from "@/app/(auth)/auth";

app/(auth)/api/auth/guest/route.ts

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+import { NextResponse } from "next/server";
+import { getToken } from "next-auth/jwt";
+import { signIn } from "@/app/(auth)/auth";
+import { isDevelopmentEnvironment } from "@/lib/constants";
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const rawRedirect = searchParams.get("redirectUrl") || "/";
+  const redirectUrl =
+    rawRedirect.startsWith("/") && !rawRedirect.startsWith("//")
+      ? rawRedirect
+      : "/";
+
+  const token = await getToken({
+    req: request,
+    secret: process.env.AUTH_SECRET,
+    secureCookie: !isDevelopmentEnvironment,
+  });
+
+  if (token) {
+    const base = process.env.NEXT_PUBLIC_BASE_PATH ?? "";
+    return NextResponse.redirect(new URL(`${base}/`, request.url));
+  }
+
+  return signIn("guest", { redirect: true, redirectTo: redirectUrl });
+}

app/(auth)/auth.config.ts

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+import type { NextAuthConfig } from "next-auth";
+
+const base = process.env.NEXT_PUBLIC_BASE_PATH ?? "";
+
+export const authConfig = {
+  basePath: "/api/auth",
+  trustHost: true,
+  pages: {
+    signIn: `${base}/login`,
+    newUser: `${base}/`,
+  },
+  providers: [],
+  callbacks: {},
+} satisfies NextAuthConfig;

app/(auth)/auth.ts

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+import { compare } from "bcrypt-ts";
+import NextAuth, { type DefaultSession } from "next-auth";
+import type { DefaultJWT } from "next-auth/jwt";
+import Credentials from "next-auth/providers/credentials";
+import { DUMMY_PASSWORD } from "@/lib/constants";
+import { createGuestUser, getUser } from "@/lib/db/queries";
+import { authConfig } from "./auth.config";
+
+export type UserType = "guest" | "regular";
+
+declare module "next-auth" {
+  interface Session extends DefaultSession {
+    user: {
+      id: string;
+      type: UserType;
+    } & DefaultSession["user"];
+  }
+
+  interface User {
+    id?: string;
+    email?: string | null;
+    type: UserType;
+  }
+}
+
+declare module "next-auth/jwt" {
+  interface JWT extends DefaultJWT {
+    id: string;
+    type: UserType;
+  }
+}
+
+export const {
+  handlers: { GET, POST },
+  auth,
+  signIn,
+  signOut,
+} = NextAuth({
+  ...authConfig,
+  providers: [
+    Credentials({
+      credentials: {
+        email: { label: "Email", type: "email" },
+        password: { label: "Password", type: "password" },
+      },
+      async authorize(credentials) {
+        const email = String(credentials.email ?? "");
+        const password = String(credentials.password ?? "");
+        const users = await getUser(email);
+
+        if (users.length === 0) {
+          await compare(password, DUMMY_PASSWORD);
+          return null;
+        }
+
+        const [user] = users;
+
+        if (!user.password) {
+          await compare(password, DUMMY_PASSWORD);
+          return null;
+        }
+
+        const passwordsMatch = await compare(password, user.password);
+
+        if (!passwordsMatch) {
+          return null;
+        }
+
+        return { ...user, type: "regular" };
+      },
+    }),
+    Credentials({
+      id: "guest",
+      credentials: {},
+      async authorize() {
+        const [guestUser] = await createGuestUser();
+        return { ...guestUser, type: "guest" };
+      },
+    }),
+  ],
+  callbacks: {
+    jwt({ token, user }) {
+      if (user) {
+        token.id = user.id as string;
+        token.type = user.type;
+      }
+
+      return token;
+    },
+    session({ session, token }) {
+      if (session.user) {
+        session.user.id = token.id;
+        session.user.type = token.type;
+      }
+
+      return session;
+    },
+  },
+});

app/(auth)/layout.tsx

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+import { ArrowLeftIcon } from "lucide-react";
+import Link from "next/link";
+import { SparklesIcon, VercelIcon } from "@/components/chat/icons";
+import { Preview } from "@/components/chat/preview";
+
+export default function AuthLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return (
+    <div className="flex h-dvh w-screen bg-sidebar">
+      <div className="flex w-full flex-col bg-background p-8 xl:w-[600px] xl:shrink-0 xl:rounded-r-2xl xl:border-r xl:border-border/40 md:p-16">
+        <Link
+          className="flex w-fit items-center gap-1.5 text-[13px] text-muted-foreground transition-colors hover:text-foreground"
+          href="/"
+        >
+          <ArrowLeftIcon className="size-3.5" />
+          Back
+        </Link>
+        <div className="mx-auto flex w-full max-w-md flex-1 flex-col justify-center gap-10">
+          <div className="flex flex-col gap-2">
+            <div className="mb-2 flex size-9 items-center justify-center rounded-lg bg-muted/60 text-muted-foreground ring-1 ring-border/50">
+              <SparklesIcon size={14} />
+            </div>
+            {children}
+          </div>
+        </div>
+      </div>
+
+      <div className="hidden flex-1 flex-col overflow-hidden pl-12 xl:flex">
+        <div className="flex items-center gap-1.5 pt-8 text-[13px] text-muted-foreground/50">
+          Powered by
+          <VercelIcon size={14} />
+          <span className="font-medium text-muted-foreground">AI Gateway</span>
+        </div>
+        <div className="flex-1 pt-4">
+          <Preview />
+        </div>
+      </div>
+    </div>
+  );
+}

app/(auth)/login/page.tsx

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+"use client";
+
+import Link from "next/link";
+import { useRouter } from "next/navigation";
+import { useSession } from "next-auth/react";
+import { useActionState, useEffect, useState } from "react";
+
+import { AuthForm } from "@/components/chat/auth-form";
+import { SubmitButton } from "@/components/chat/submit-button";
+import { toast } from "@/components/chat/toast";
+import { type LoginActionState, login } from "../actions";
+
+export default function Page() {
+  const router = useRouter();
+  const [email, setEmail] = useState("");
+  const [isSuccessful, setIsSuccessful] = useState(false);
+
+  const [state, formAction] = useActionState<LoginActionState, FormData>(
+    login,
+    { status: "idle" }
+  );
+
+  const { update: updateSession } = useSession();
+
+  // biome-ignore lint/correctness/useExhaustiveDependencies: router and updateSession are stable refs
+  useEffect(() => {
+    if (state.status === "failed") {
+      toast({ type: "error", description: "Invalid credentials!" });
+    } else if (state.status === "invalid_data") {
+      toast({
+        type: "error",
+        description: "Failed validating your submission!",
+      });
+    } else if (state.status === "success") {
+      setIsSuccessful(true);
+      updateSession();
+      router.refresh();
+    }
+  }, [state.status]);
+
+  const handleSubmit = (formData: FormData) => {
+    setEmail(formData.get("email") as string);
+    formAction(formData);
+  };
+
+  return (
+    <>
+      <h1 className="text-2xl font-semibold tracking-tight">Welcome back</h1>
+      <p className="text-sm text-muted-foreground">
+        Sign in to your account to continue
+      </p>
+      <AuthForm action={handleSubmit} defaultEmail={email}>
+        <SubmitButton isSuccessful={isSuccessful}>Sign in</SubmitButton>
+        <p className="text-center text-[13px] text-muted-foreground">
+          {"No account? "}
+          <Link
+            className="text-foreground underline-offset-4 hover:underline"
+            href="/register"
+          >
+            Sign up
+          </Link>
+        </p>
+      </AuthForm>
+    </>
+  );
+}

app/(auth)/register/page.tsx

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+"use client";
+
+import Link from "next/link";
+import { useRouter } from "next/navigation";
+import { useSession } from "next-auth/react";
+import { useActionState, useEffect, useState } from "react";
+import { AuthForm } from "@/components/chat/auth-form";
+import { SubmitButton } from "@/components/chat/submit-button";
+import { toast } from "@/components/chat/toast";
+import { type RegisterActionState, register } from "../actions";
+
+export default function Page() {
+  const router = useRouter();
+  const [email, setEmail] = useState("");
+  const [isSuccessful, setIsSuccessful] = useState(false);
+
+  const [state, formAction] = useActionState<RegisterActionState, FormData>(
+    register,
+    { status: "idle" }
+  );
+
+  const { update: updateSession } = useSession();
+
+  // biome-ignore lint/correctness/useExhaustiveDependencies: router and updateSession are stable refs
+  useEffect(() => {
+    if (state.status === "user_exists") {
+      toast({ type: "error", description: "Account already exists!" });
+    } else if (state.status === "failed") {
+      toast({ type: "error", description: "Failed to create account!" });
+    } else if (state.status === "invalid_data") {
+      toast({
+        type: "error",
+        description: "Failed validating your submission!",
+      });
+    } else if (state.status === "success") {
+      toast({ type: "success", description: "Account created!" });
+      setIsSuccessful(true);
+      updateSession();
+      router.refresh();
+    }
+  }, [state.status]);
+
+  const handleSubmit = (formData: FormData) => {
+    setEmail(formData.get("email") as string);
+    formAction(formData);
+  };
+
+  return (
+    <>
+      <h1 className="text-2xl font-semibold tracking-tight">Create account</h1>
+      <p className="text-sm text-muted-foreground">Get started for free</p>
+      <AuthForm action={handleSubmit} defaultEmail={email}>
+        <SubmitButton isSuccessful={isSuccessful}>Sign up</SubmitButton>
+        <p className="text-center text-[13px] text-muted-foreground">
+          {"Have an account? "}
+          <Link
+            className="text-foreground underline-offset-4 hover:underline"
+            href="/login"
+          >
+            Sign in
+          </Link>
+        </p>
+      </AuthForm>
+    </>
+  );
+}

app/(chat)/actions.ts

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+"use server";
+
+import { generateText, type UIMessage } from "ai";
+import { cookies } from "next/headers";
+import { auth } from "@/app/(auth)/auth";
+import type { VisibilityType } from "@/components/chat/visibility-selector";
+import { titlePrompt } from "@/lib/ai/prompts";
+import { getTitleModel } from "@/lib/ai/providers";
+import {
+  deleteMessagesByChatIdAfterTimestamp,
+  getChatById,
+  getMessageById,
+  updateChatVisibilityById,
+} from "@/lib/db/queries";
+import { getTextFromMessage } from "@/lib/utils";
+
+export async function saveChatModelAsCookie(model: string) {
+  const cookieStore = await cookies();
+  cookieStore.set("chat-model", model);
+}
+
+export async function generateTitleFromUserMessage({
+  message,
+}: {
+  message: UIMessage;
+}) {
+  const { text } = await generateText({
+    model: getTitleModel(),
+    system: titlePrompt,
+    prompt: getTextFromMessage(message),
+  });
+  return text
+    .replace(/^[#*"\s]+/, "")
+    .replace(/["]+$/, "")
+    .trim();
+}
+
+export async function deleteTrailingMessages({ id }: { id: string }) {
+  const session = await auth();
+  if (!session?.user?.id) {
+    throw new Error("Unauthorized");
+  }
+
+  const [message] = await getMessageById({ id });
+  if (!message) {
+    throw new Error("Message not found");
+  }
+
+  const chat = await getChatById({ id: message.chatId });
+  if (!chat || chat.userId !== session.user.id) {
+    throw new Error("Unauthorized");
+  }
+
+  await deleteMessagesByChatIdAfterTimestamp({
+    chatId: message.chatId,
+    timestamp: message.createdAt,
+  });
+}
+
+export async function updateChatVisibility({
+  chatId,
+  visibility,
+}: {
+  chatId: string;
+  visibility: VisibilityType;
+}) {
+  const session = await auth();
+  if (!session?.user?.id) {
+    throw new Error("Unauthorized");
+  }
+
+  const chat = await getChatById({ id: chatId });
+  if (!chat || chat.userId !== session.user.id) {
+    throw new Error("Unauthorized");
+  }
+
+  await updateChatVisibilityById({ chatId, visibility });
+}

app/(chat)/api/chat/[id]/stream/route.ts

@@ -0,0 +1,3 @@
+export function GET() {
+  return new Response(null, { status: 204 });
+}

app/(chat)/api/chat/route.ts

@@ -0,0 +1,272 @@
+import {
+  convertToModelMessages,
+  createUIMessageStream,
+  createUIMessageStreamResponse,
+  stepCountIs,
+  streamText,
+} from "ai";
+import { auth, type UserType } from "@/app/(auth)/auth";
+import { entitlementsByUserType } from "@/lib/ai/entitlements";
+import {
+  allowedModelIds,
+  DEFAULT_CHAT_MODEL,
+  modelCapabilities,
+} from "@/lib/ai/models";
+import { type RequestHints, systemPrompt } from "@/lib/ai/prompts";
+import { getLanguageModel } from "@/lib/ai/providers";
+import { getWeather } from "@/lib/ai/tools/get-weather";
+import {
+  deleteChatById,
+  getChatById,
+  getMessageCountByUserId,
+  getMessagesByChatId,
+  saveChat,
+  saveMessages,
+  updateChatTitleById,
+  updateMessage,
+} from "@/lib/db/queries";
+import type { DBMessage } from "@/lib/db/schema";
+import { ChatbotError } from "@/lib/errors";
+import { checkIpRateLimit } from "@/lib/ratelimit";
+import type { ChatMessage } from "@/lib/types";
+import { convertToUIMessages, generateUUID } from "@/lib/utils";
+import { generateTitleFromUserMessage } from "../../actions";
+import { type PostRequestBody, postRequestBodySchema } from "./schema";
+
+export const maxDuration = 60;
+
+function getClientIp(request: Request): string | undefined {
+  const fwd = request.headers.get("x-forwarded-for");
+  if (fwd) {
+    return fwd.split(",")[0]?.trim();
+  }
+  return request.headers.get("x-real-ip") ?? undefined;
+}
+
+export async function POST(request: Request) {
+  let requestBody: PostRequestBody;
+
+  try {
+    const json = await request.json();
+    requestBody = postRequestBodySchema.parse(json);
+  } catch (_) {
+    return new ChatbotError("bad_request:api").toResponse();
+  }
+
+  try {
+    const { id, message, messages, selectedChatModel, selectedVisibilityType } =
+      requestBody;
+
+    const session = await auth();
+
+    if (!session?.user) {
+      return new ChatbotError("unauthorized:chat").toResponse();
+    }
+
+    const chatModel = allowedModelIds.has(selectedChatModel)
+      ? selectedChatModel
+      : DEFAULT_CHAT_MODEL;
+
+    await checkIpRateLimit(getClientIp(request));
+
+    const userType: UserType = session.user.type;
+
+    const messageCount = await getMessageCountByUserId({
+      id: session.user.id,
+      differenceInHours: 1,
+    });
+
+    if (messageCount > entitlementsByUserType[userType].maxMessagesPerHour) {
+      return new ChatbotError("rate_limit:chat").toResponse();
+    }
+
+    const isToolApprovalFlow = Boolean(messages);
+
+    const chat = await getChatById({ id });
+    let messagesFromDb: DBMessage[] = [];
+    let titlePromise: Promise<string> | null = null;
+
+    if (chat) {
+      if (chat.userId !== session.user.id) {
+        return new ChatbotError("forbidden:chat").toResponse();
+      }
+      messagesFromDb = await getMessagesByChatId({ id });
+    } else if (message?.role === "user") {
+      await saveChat({
+        id,
+        userId: session.user.id,
+        title: "New chat",
+        visibility: selectedVisibilityType,
+      });
+      titlePromise = generateTitleFromUserMessage({ message });
+    }
+
+    let uiMessages: ChatMessage[];
+
+    if (isToolApprovalFlow && messages) {
+      const dbMessages = convertToUIMessages(messagesFromDb);
+      const approvalStates = new Map(
+        messages.flatMap(
+          (m) =>
+            m.parts
+              ?.filter(
+                (p: Record<string, unknown>) =>
+                  p.state === "approval-responded" ||
+                  p.state === "output-denied"
+              )
+              .map((p: Record<string, unknown>) => [
+                String(p.toolCallId ?? ""),
+                p,
+              ]) ?? []
+        )
+      );
+      uiMessages = dbMessages.map((msg) => ({
+        ...msg,
+        parts: msg.parts.map((part) => {
+          if (
+            "toolCallId" in part &&
+            approvalStates.has(String(part.toolCallId))
+          ) {
+            return { ...part, ...approvalStates.get(String(part.toolCallId)) };
+          }
+          return part;
+        }),
+      })) as ChatMessage[];
+    } else {
+      uiMessages = [
+        ...convertToUIMessages(messagesFromDb),
+        message as ChatMessage,
+      ];
+    }
+
+    const requestHints: RequestHints = {
+      city: request.headers.get("x-vercel-ip-city") ?? undefined,
+      country: request.headers.get("x-vercel-ip-country") ?? undefined,
+    };
+
+    if (message?.role === "user") {
+      await saveMessages({
+        messages: [
+          {
+            chatId: id,
+            id: message.id,
+            role: "user",
+            parts: message.parts,
+            attachments: [],
+            createdAt: new Date(),
+          },
+        ],
+      });
+    }
+
+    const capabilities = modelCapabilities[chatModel];
+    const isReasoningModel = capabilities?.reasoning === true;
+    const supportsTools = capabilities?.tools === true;
+
+    const modelMessages = await convertToModelMessages(uiMessages);
+
+    const stream = createUIMessageStream({
+      originalMessages: isToolApprovalFlow ? uiMessages : undefined,
+      execute: async ({ writer: dataStream }) => {
+        const result = streamText({
+          model: getLanguageModel(chatModel),
+          system: systemPrompt({ requestHints, supportsTools }),
+          messages: modelMessages,
+          stopWhen: stepCountIs(5),
+          experimental_activeTools:
+            isReasoningModel && !supportsTools ? [] : ["getWeather"],
+          tools: {
+            getWeather,
+          },
+        });
+
+        dataStream.merge(
+          result.toUIMessageStream({ sendReasoning: isReasoningModel })
+        );
+
+        if (titlePromise) {
+          try {
+            const title = await titlePromise;
+            dataStream.write({ type: "data-chat-title", data: title });
+            updateChatTitleById({ chatId: id, title });
+          } catch (_) {
+            /* non-fatal */
+          }
+        }
+      },
+      generateId: generateUUID,
+      onFinish: async ({ messages: finishedMessages }) => {
+        if (isToolApprovalFlow) {
+          for (const finishedMsg of finishedMessages) {
+            const existingMsg = uiMessages.find((m) => m.id === finishedMsg.id);
+            if (existingMsg) {
+              await updateMessage({
+                id: finishedMsg.id,
+                parts: finishedMsg.parts,
+              });
+            } else {
+              await saveMessages({
+                messages: [
+                  {
+                    id: finishedMsg.id,
+                    role: finishedMsg.role,
+                    parts: finishedMsg.parts,
+                    createdAt: new Date(),
+                    attachments: [],
+                    chatId: id,
+                  },
+                ],
+              });
+            }
+          }
+        } else if (finishedMessages.length > 0) {
+          await saveMessages({
+            messages: finishedMessages.map((currentMessage) => ({
+              id: currentMessage.id,
+              role: currentMessage.role,
+              parts: currentMessage.parts,
+              createdAt: new Date(),
+              attachments: [],
+              chatId: id,
+            })),
+          });
+        }
+      },
+      onError: () => "Oops, an error occurred!",
+    });
+
+    return createUIMessageStreamResponse({ stream });
+  } catch (error) {
+    if (error instanceof ChatbotError) {
+      return error.toResponse();
+    }
+
+    console.error("Unhandled error in chat API:", error);
+    return new ChatbotError("offline:chat").toResponse();
+  }
+}
+
+export async function DELETE(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const id = searchParams.get("id");
+
+  if (!id) {
+    return new ChatbotError("bad_request:api").toResponse();
+  }
+
+  const session = await auth();
+
+  if (!session?.user) {
+    return new ChatbotError("unauthorized:chat").toResponse();
+  }
+
+  const chat = await getChatById({ id });
+
+  if (chat?.userId !== session.user.id) {
+    return new ChatbotError("forbidden:chat").toResponse();
+  }
+
+  const deletedChat = await deleteChatById({ id });
+
+  return Response.json(deletedChat, { status: 200 });
+}

app/(chat)/api/chat/schema.ts

@@ -0,0 +1,37 @@
+import { z } from "zod";
+
+const textPartSchema = z.object({
+  type: z.enum(["text"]),
+  text: z.string().min(1).max(2000),
+});
+
+const filePartSchema = z.object({
+  type: z.enum(["file"]),
+  mediaType: z.enum(["image/jpeg", "image/png", "image/webp", "image/gif"]),
+  name: z.string().min(1).max(100),
+  url: z.string(),
+});
+
+const partSchema = z.union([textPartSchema, filePartSchema]);
+
+const userMessageSchema = z.object({
+  id: z.string().uuid(),
+  role: z.enum(["user"]),
+  parts: z.array(partSchema),
+});
+
+const toolApprovalMessageSchema = z.object({
+  id: z.string(),
+  role: z.enum(["user", "assistant"]),
+  parts: z.array(z.record(z.unknown())),
+});
+
+export const postRequestBodySchema = z.object({
+  id: z.string().uuid(),
+  message: userMessageSchema.optional(),
+  messages: z.array(toolApprovalMessageSchema).optional(),
+  selectedChatModel: z.string(),
+  selectedVisibilityType: z.enum(["public", "private"]),
+});
+
+export type PostRequestBody = z.infer<typeof postRequestBodySchema>;

app/(chat)/api/files/upload/route.ts

@@ -0,0 +1,64 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+
+import { auth } from "@/app/(auth)/auth";
+
+const MAX_FILE_SIZE = 5 * 1024 * 1024;
+const ALLOWED_TYPES = ["image/jpeg", "image/png", "image/webp", "image/gif"];
+
+const FileSchema = z.object({
+  file: z
+    .instanceof(Blob)
+    .refine((file) => file.size <= MAX_FILE_SIZE, {
+      message: "File size should be less than 5MB",
+    })
+    .refine((file) => ALLOWED_TYPES.includes(file.type), {
+      message: "File type should be JPEG, PNG, WebP, or GIF",
+    }),
+});
+
+export async function POST(request: Request) {
+  const session = await auth();
+
+  if (!session) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+  }
+
+  if (request.body === null) {
+    return new Response("Request body is empty", { status: 400 });
+  }
+
+  try {
+    const formData = await request.formData();
+    const file = formData.get("file") as Blob;
+
+    if (!file) {
+      return NextResponse.json({ error: "No file uploaded" }, { status: 400 });
+    }
+
+    const validatedFile = FileSchema.safeParse({ file });
+
+    if (!validatedFile.success) {
+      const errorMessage = validatedFile.error.errors
+        .map((error) => error.message)
+        .join(", ");
+      return NextResponse.json({ error: errorMessage }, { status: 400 });
+    }
+
+    const filename = (formData.get("file") as File).name;
+    const safeName = filename.replace(/[^a-zA-Z0-9._-]/g, "_");
+    const buffer = Buffer.from(await file.arrayBuffer());
+    const dataUrl = `data:${file.type};base64,${buffer.toString("base64")}`;
+
+    return NextResponse.json({
+      url: dataUrl,
+      pathname: safeName,
+      contentType: file.type,
+    });
+  } catch (_error) {
+    return NextResponse.json(
+      { error: "Failed to process request" },
+      { status: 500 }
+    );
+  }
+}

app/(chat)/api/history/route.ts

@@ -0,0 +1,49 @@
+import type { NextRequest } from "next/server";
+import { auth } from "@/app/(auth)/auth";
+import { deleteAllChatsByUserId, getChatsByUserId } from "@/lib/db/queries";
+import { ChatbotError } from "@/lib/errors";
+
+export async function GET(request: NextRequest) {
+  const { searchParams } = request.nextUrl;
+
+  const limit = Math.min(
+    Math.max(Number.parseInt(searchParams.get("limit") || "10", 10), 1),
+    50
+  );
+  const startingAfter = searchParams.get("starting_after");
+  const endingBefore = searchParams.get("ending_before");
+
+  if (startingAfter && endingBefore) {
+    return new ChatbotError(
+      "bad_request:api",
+      "Only one of starting_after or ending_before can be provided."
+    ).toResponse();
+  }
+
+  const session = await auth();
+
+  if (!session?.user) {
+    return new ChatbotError("unauthorized:chat").toResponse();
+  }
+
+  const chats = await getChatsByUserId({
+    id: session.user.id,
+    limit,
+    startingAfter,
+    endingBefore,
+  });
+
+  return Response.json(chats);
+}
+
+export async function DELETE() {
+  const session = await auth();
+
+  if (!session?.user) {
+    return new ChatbotError("unauthorized:chat").toResponse();
+  }
+
+  const result = await deleteAllChatsByUserId({ userId: session.user.id });
+
+  return Response.json(result, { status: 200 });
+}

app/(chat)/api/messages/route.ts

@@ -0,0 +1,43 @@
+import { auth } from "@/app/(auth)/auth";
+import { getChatById, getMessagesByChatId } from "@/lib/db/queries";
+import { convertToUIMessages } from "@/lib/utils";
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const chatId = searchParams.get("chatId");
+
+  if (!chatId) {
+    return Response.json({ error: "chatId required" }, { status: 400 });
+  }
+
+  const [session, chat, messages] = await Promise.all([
+    auth(),
+    getChatById({ id: chatId }),
+    getMessagesByChatId({ id: chatId }),
+  ]);
+
+  if (!chat) {
+    return Response.json({
+      messages: [],
+      visibility: "private",
+      userId: null,
+      isReadonly: false,
+    });
+  }
+
+  if (
+    chat.visibility === "private" &&
+    (!session?.user || session.user.id !== chat.userId)
+  ) {
+    return Response.json({ error: "forbidden" }, { status: 403 });
+  }
+
+  const isReadonly = !session?.user || session.user.id !== chat.userId;
+
+  return Response.json({
+    messages: convertToUIMessages(messages),
+    visibility: chat.visibility,
+    userId: chat.userId,
+    isReadonly,
+  });
+}

app/(chat)/api/models/route.ts

@@ -0,0 +1,9 @@
+import { modelCapabilities } from "@/lib/ai/models";
+
+export function GET() {
+  return Response.json(modelCapabilities, {
+    headers: {
+      "Cache-Control": "public, max-age=86400, s-maxage=86400",
+    },
+  });
+}

app/(chat)/api/vote/route.ts

@@ -0,0 +1,84 @@
+import { z } from "zod";
+import { auth } from "@/app/(auth)/auth";
+import { getChatById, getVotesByChatId, voteMessage } from "@/lib/db/queries";
+import { ChatbotError } from "@/lib/errors";
+
+const voteSchema = z.object({
+  chatId: z.string(),
+  messageId: z.string(),
+  type: z.enum(["up", "down"]),
+});
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+  const chatId = searchParams.get("chatId");
+
+  if (!chatId) {
+    return new ChatbotError(
+      "bad_request:api",
+      "Parameter chatId is required."
+    ).toResponse();
+  }
+
+  const session = await auth();
+
+  if (!session?.user) {
+    return new ChatbotError("unauthorized:vote").toResponse();
+  }
+
+  const chat = await getChatById({ id: chatId });
+
+  if (!chat) {
+    return new ChatbotError("not_found:chat").toResponse();
+  }
+
+  if (chat.userId !== session.user.id) {
+    return new ChatbotError("forbidden:vote").toResponse();
+  }
+
+  const votes = await getVotesByChatId({ id: chatId });
+
+  return Response.json(votes, { status: 200 });
+}
+
+export async function PATCH(request: Request) {
+  let chatId: string;
+  let messageId: string;
+  let type: "up" | "down";
+
+  try {
+    const parsed = voteSchema.parse(await request.json());
+    chatId = parsed.chatId;
+    messageId = parsed.messageId;
+    type = parsed.type;
+  } catch {
+    return new ChatbotError(
+      "bad_request:api",
+      "Parameters chatId, messageId, and type are required."
+    ).toResponse();
+  }
+
+  const session = await auth();
+
+  if (!session?.user) {
+    return new ChatbotError("unauthorized:vote").toResponse();
+  }
+
+  const chat = await getChatById({ id: chatId });
+
+  if (!chat) {
+    return new ChatbotError("not_found:vote").toResponse();
+  }
+
+  if (chat.userId !== session.user.id) {
+    return new ChatbotError("forbidden:vote").toResponse();
+  }
+
+  await voteMessage({
+    chatId,
+    messageId,
+    type,
+  });
+
+  return new Response("Message voted", { status: 200 });
+}

app/(chat)/chat/[id]/page.tsx

@@ -0,0 +1,3 @@
+export default function Page() {
+  return null;
+}

app/(chat)/layout.tsx

@@ -0,0 +1,46 @@
+import { cookies } from "next/headers";
+import { Suspense } from "react";
+import { Toaster } from "sonner";
+import { AppSidebar } from "@/components/chat/app-sidebar";
+import { DataStreamProvider } from "@/components/chat/data-stream-provider";
+import { ChatShell } from "@/components/chat/shell";
+import { SidebarInset, SidebarProvider } from "@/components/ui/sidebar";
+import { ActiveChatProvider } from "@/hooks/use-active-chat";
+import { auth } from "../(auth)/auth";
+
+export default function Layout({ children }: { children: React.ReactNode }) {
+  return (
+    <DataStreamProvider>
+      <Suspense fallback={<div className="flex h-dvh bg-sidebar" />}>
+        <SidebarShell>{children}</SidebarShell>
+      </Suspense>
+    </DataStreamProvider>
+  );
+}
+
+async function SidebarShell({ children }: { children: React.ReactNode }) {
+  const [session, cookieStore] = await Promise.all([auth(), cookies()]);
+  const isCollapsed = cookieStore.get("sidebar_state")?.value !== "true";
+
+  return (
+    <SidebarProvider defaultOpen={!isCollapsed}>
+      <AppSidebar user={session?.user} />
+      <SidebarInset>
+        <Toaster
+          position="top-center"
+          theme="system"
+          toastOptions={{
+            className:
+              "!bg-card !text-foreground !border-border/50 !shadow-[var(--shadow-float)]",
+          }}
+        />
+        <Suspense fallback={<div className="flex h-dvh" />}>
+          <ActiveChatProvider>
+            <ChatShell />
+          </ActiveChatProvider>
+        </Suspense>
+        {children}
+      </SidebarInset>
+    </SidebarProvider>
+  );
+}

app/(chat)/page.tsx

@@ -0,0 +1,3 @@
+export default function Page() {
+  return null;
+}

app/globals.css

@@ -0,0 +1,500 @@
+@import "tailwindcss";
+@import "katex/dist/katex.min.css";
+
+@source "../node_modules/streamdown/dist/index.js";
+
+@custom-variant dark (&:is(.dark, .dark *));
+
+@plugin "tailwindcss-animate";
+@plugin "@tailwindcss/typography";
+
+@theme inline {
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+  --color-chart-1: var(--chart-1);
+  --color-chart-2: var(--chart-2);
+  --color-chart-3: var(--chart-3);
+  --color-chart-4: var(--chart-4);
+  --color-chart-5: var(--chart-5);
+  --color-sidebar: var(--sidebar);
+  --color-sidebar-foreground: var(--sidebar-foreground);
+  --color-sidebar-primary: var(--sidebar-primary);
+  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
+  --color-sidebar-accent: var(--sidebar-accent);
+  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
+  --color-sidebar-border: var(--sidebar-border);
+  --color-sidebar-ring: var(--sidebar-ring);
+}
+
+:root {
+  --radius: 0.625rem;
+  --background: oklch(0.985 0 0);
+  --foreground: oklch(0.12 0 0);
+  --card: oklch(1 0 0);
+  --card-foreground: oklch(0.12 0 0);
+  --popover: oklch(1 0 0);
+  --popover-foreground: oklch(0.12 0 0);
+  --primary: oklch(0.12 0 0);
+  --primary-foreground: oklch(0.985 0 0);
+  --secondary: oklch(0.965 0 0);
+  --secondary-foreground: oklch(0.38 0 0);
+  --muted: oklch(0.94 0 0);
+  --muted-foreground: oklch(0.58 0 0);
+  --accent: oklch(0.965 0 0);
+  --accent-foreground: oklch(0.12 0 0);
+  --destructive: oklch(0.55 0.15 25);
+  --border: oklch(0.9 0 0);
+  --input: oklch(0.9 0 0);
+  --ring: oklch(0.5 0 0);
+  --chart-1: oklch(0.646 0.222 41.116);
+  --chart-2: oklch(0.6 0.118 184.704);
+  --chart-3: oklch(0.398 0.07 227.392);
+  --chart-4: oklch(0.828 0.189 84.429);
+  --chart-5: oklch(0.769 0.188 70.08);
+  --sidebar: oklch(0.97 0 0);
+  --sidebar-foreground: oklch(0.38 0 0);
+  --sidebar-primary: oklch(0.12 0 0);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.12 0 0 / 0.06);
+  --sidebar-accent-foreground: oklch(0.12 0 0);
+  --sidebar-border: oklch(0.88 0 0);
+  --sidebar-ring: oklch(0.5 0 0);
+
+  --shadow-card: 0 1px 3px oklch(0 0 0 / 0.05), 0 1px 1px oklch(0 0 0 / 0.03);
+  --shadow-float:
+    0 8px 24px -6px oklch(0 0 0 / 0.1), 0 2px 8px -2px oklch(0 0 0 / 0.04);
+  --shadow-composer: 0 1px 2px oklch(0 0 0 / 0.04);
+  --shadow-composer-focus:
+    0 0 0 1px oklch(0 0 0 / 0.06), 0 2px 8px -2px oklch(0 0 0 / 0.06);
+  --shadow-inset: inset 0 1px 1px oklch(0 0 0 / 0.03);
+  --shadow-glow: 0 0 20px oklch(0 0 0 / 0.08);
+
+  --ease-spring: cubic-bezier(0.22, 1, 0.36, 1);
+  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
+  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.dark {
+  --background: oklch(0.195 0 0);
+  --foreground: oklch(0.94 0 0);
+  --card: oklch(0.225 0 0);
+  --card-foreground: oklch(0.94 0 0);
+  --popover: oklch(0.225 0 0);
+  --popover-foreground: oklch(0.94 0 0);
+  --primary: oklch(0.94 0 0);
+  --primary-foreground: oklch(0.195 0 0);
+  --secondary: oklch(0.26 0 0);
+  --secondary-foreground: oklch(0.75 0 0);
+  --muted: oklch(0.165 0 0);
+  --muted-foreground: oklch(0.6 0 0);
+  --accent: oklch(0.26 0 0);
+  --accent-foreground: oklch(0.94 0 0);
+  --destructive: oklch(0.7 0.15 25);
+  --border: oklch(0.27 0 0);
+  --input: oklch(0.27 0 0);
+  --ring: oklch(0.45 0 0);
+  --chart-1: oklch(0.488 0.243 264.376);
+  --chart-2: oklch(0.696 0.17 162.48);
+  --chart-3: oklch(0.769 0.188 70.08);
+  --chart-4: oklch(0.627 0.265 303.9);
+  --chart-5: oklch(0.645 0.246 16.439);
+  --sidebar: oklch(0.175 0 0);
+  --sidebar-foreground: oklch(0.78 0 0);
+  --sidebar-primary: oklch(0.94 0 0);
+  --sidebar-primary-foreground: oklch(0.195 0 0);
+  --sidebar-accent: oklch(0.94 0 0 / 0.06);
+  --sidebar-accent-foreground: oklch(0.94 0 0);
+  --sidebar-border: oklch(0.25 0 0);
+  --sidebar-ring: oklch(0.45 0 0);
+
+  --shadow-card:
+    inset 0 1px 0 oklch(1 0 0 / 0.04), 0 1px 2px oklch(0 0 0 / 0.2),
+    0 0.5px 1px oklch(0 0 0 / 0.15);
+  --shadow-float:
+    0 0 0 1px oklch(1 0 0 / 0.06), 0 16px 48px -6px oklch(0 0 0 / 0.35),
+    0 6px 12px -2px oklch(0 0 0 / 0.2);
+  --shadow-composer:
+    0 1px 3px oklch(0 0 0 / 0.2), inset 0 1px 0 oklch(1 0 0 / 0.03);
+  --shadow-composer-focus:
+    0 0 0 1px oklch(1 0 0 / 0.1), 0 4px 16px -4px oklch(0 0 0 / 0.3),
+    inset 0 1px 0 oklch(1 0 0 / 0.04);
+}
+
+@layer base {
+  * {
+    @apply border-border ring-0;
+  }
+  body {
+    @apply bg-background text-foreground;
+    font-feature-settings: "ss01", "ss02", "cv01";
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    text-rendering: optimizeLegibility;
+  }
+}
+
+@layer base {
+  *,
+  ::after,
+  ::before,
+  ::backdrop,
+  ::file-selector-button {
+    border-color: var(--border);
+  }
+}
+
+@layer base {
+  body {
+    overflow-x: hidden;
+    position: relative;
+  }
+
+  html {
+    overflow-x: hidden;
+  }
+
+  h1,
+  h2,
+  h3,
+  h4,
+  h5,
+  h6 {
+    letter-spacing: -0.025em;
+    line-height: 1.2;
+  }
+
+  p {
+    line-height: 1.6;
+  }
+}
+
+button:focus-visible,
+select:focus-visible,
+[role="button"]:focus-visible,
+input:focus-visible,
+textarea:focus-visible {
+  outline: none;
+}
+
+@utility text-balance {
+  text-wrap: balance;
+}
+
+@utility -webkit-overflow-scrolling-touch {
+  -webkit-overflow-scrolling: touch;
+}
+
+@utility touch-pan-y {
+  touch-action: pan-y;
+}
+
+@utility overscroll-behavior-contain {
+  overscroll-behavior: contain;
+}
+
+@utility no-scrollbar {
+  -ms-overflow-style: none;
+  scrollbar-width: none;
+  &::-webkit-scrollbar {
+    display: none;
+  }
+}
+
+@layer utilities {
+  :root {
+    --foreground-rgb: 0, 0, 0;
+    --background-start-rgb: 214, 219, 220;
+    --background-end-rgb: 255, 255, 255;
+  }
+
+  @media (prefers-color-scheme: dark) {
+    :root {
+      --foreground-rgb: 255, 255, 255;
+      --background-start-rgb: 0, 0, 0;
+      --background-end-rgb: 0, 0, 0;
+    }
+  }
+}
+
+.skeleton {
+  * {
+    pointer-events: none !important;
+  }
+
+  *[class^="text-"] {
+    color: transparent;
+    @apply rounded-md bg-foreground/20 select-none animate-pulse;
+  }
+
+  .skeleton-bg {
+    @apply bg-foreground/10;
+  }
+
+  .skeleton-div {
+    @apply bg-foreground/20 animate-pulse;
+  }
+}
+
+@keyframes fade-up {
+  from {
+    opacity: 0;
+    transform: translateY(6px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes fade-in {
+  from {
+    opacity: 0;
+  }
+  to {
+    opacity: 1;
+  }
+}
+
+@keyframes shimmer {
+  0% {
+    background-position: -200% 0;
+  }
+  100% {
+    background-position: 200% 0;
+  }
+}
+
+@keyframes dot-pulse {
+  0%,
+  60%,
+  100% {
+    opacity: 0.3;
+    transform: translateY(0);
+  }
+  30% {
+    opacity: 1;
+    transform: translateY(-3px);
+  }
+}
+
+@keyframes message-in {
+  from {
+    opacity: 0;
+    transform: translateY(8px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+@keyframes thinking-dot {
+  0%,
+  60%,
+  100% {
+    opacity: 0.3;
+    transform: translateY(0);
+  }
+  30% {
+    opacity: 1;
+    transform: translateY(-3px);
+  }
+}
+
+@keyframes glow-pulse {
+  0%,
+  100% {
+    box-shadow: 0 0 0 0 oklch(0.55 0.12 250 / 0%);
+  }
+  50% {
+    box-shadow: 0 0 0 3px oklch(0.55 0.12 250 / 8%);
+  }
+}
+
+@keyframes subtle-lift {
+  from {
+    transform: translateY(0);
+    box-shadow: var(--shadow-card);
+  }
+  to {
+    transform: translateY(-1px);
+    box-shadow: var(--shadow-float);
+  }
+}
+
+@utility fade-up {
+  animation: fade-up 0.25s var(--ease-spring) both;
+}
+
+@utility fade-in {
+  animation: fade-in 0.2s ease both;
+}
+
+@utility shimmer {
+  animation: shimmer 2s linear infinite;
+  background: linear-gradient(
+    90deg,
+    transparent,
+    oklch(1 0 0 / 0.04),
+    transparent
+  );
+  background-size: 200% 100%;
+}
+
+@utility dot-pulse {
+  animation: dot-pulse 1.4s ease-in-out infinite;
+}
+
+@utility message-fade-in {
+  animation: message-in 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
+}
+
+@utility thinking-dot {
+  animation: thinking-dot 1.4s ease-in-out infinite;
+}
+
+@utility composer-glow {
+  animation: glow-pulse 2s ease-in-out infinite;
+}
+
+.ProseMirror {
+  outline: none;
+}
+
+.cm-editor {
+  @apply bg-transparent! outline-hidden! text-[13px]! leading-[1.6]!;
+  font-family:
+    "SF Mono", "Cascadia Code", "Fira Code", "JetBrains Mono", ui-monospace,
+    monospace !important;
+}
+
+.cm-gutters {
+  @apply bg-transparent! border-r-0! outline-hidden!;
+}
+
+.cm-gutter.cm-lineNumbers {
+  @apply min-w-[3rem] text-muted-foreground/40 text-[11px]!;
+}
+
+.cm-scroller {
+  @apply overflow-auto!;
+}
+
+.ͼo.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground,
+.ͼo.cm-selectionBackground,
+.ͼo.cm-content::selection {
+  background: oklch(0.55 0.12 250 / 0.15) !important;
+}
+
+.dark
+  .ͼo.cm-focused
+  > .cm-scroller
+  > .cm-selectionLayer
+  .cm-selectionBackground,
+.dark .ͼo.cm-selectionBackground,
+.dark .ͼo.cm-content::selection {
+  background: oklch(0.55 0.12 250 / 0.2) !important;
+}
+
+.cm-activeLine {
+  @apply bg-muted/50! rounded-sm!;
+}
+
+.cm-activeLineGutter {
+  @apply bg-transparent!;
+}
+
+.cm-activeLineGutter .cm-gutterElement {
+  color: var(--foreground) !important;
+  opacity: 0.7;
+}
+
+.cm-gutter.cm-lineNumbers .cm-gutterElement {
+  padding-right: 12px !important;
+}
+
+.cm-foldGutter {
+  @apply min-w-3;
+}
+
+.cm-cursor {
+  border-left-color: oklch(0.55 0.12 250) !important;
+  border-left-width: 2px !important;
+}
+
+.cm-matchingBracket {
+  background: oklch(0.55 0.12 250 / 0.12) !important;
+  outline: 1px solid oklch(0.55 0.12 250 / 0.3);
+  border-radius: 2px;
+}
+
+.suggestion-highlight {
+  @apply cursor-pointer rounded-sm bg-blue-200 transition-colors hover:bg-blue-300 dark:bg-blue-500/40 dark:text-blue-50 dark:hover:bg-blue-400/50;
+  user-select: none;
+  -webkit-user-select: none;
+}
+
+@layer base {
+  * {
+    scrollbar-width: thin;
+    scrollbar-color: oklch(0 0 0 / 0.12) transparent;
+  }
+
+  .dark * {
+    scrollbar-color: oklch(1 0 0 / 0.1) transparent;
+  }
+
+  *::-webkit-scrollbar {
+    width: 4px;
+    height: 4px;
+  }
+
+  *::-webkit-scrollbar-track {
+    background: transparent;
+  }
+
+  *::-webkit-scrollbar-thumb {
+    background: oklch(0 0 0 / 0.12);
+    border-radius: 9999px;
+  }
+
+  *::-webkit-scrollbar-thumb:hover {
+    background: oklch(0 0 0 / 0.25);
+  }
+
+  .dark *::-webkit-scrollbar-thumb {
+    background: oklch(1 0 0 / 0.1);
+  }
+
+  .dark *::-webkit-scrollbar-thumb:hover {
+    background: oklch(1 0 0 / 0.2);
+  }
+
+  *::-webkit-scrollbar-corner {
+    background: transparent;
+  }
+}
+
+[data-testid="artifact"] {
+  isolation: isolate;
+}

app/layout.tsx

@@ -0,0 +1,88 @@
+import type { Metadata } from "next";
+import { Geist, Geist_Mono } from "next/font/google";
+import { ThemeProvider } from "@/components/theme-provider";
+import { TooltipProvider } from "@/components/ui/tooltip";
+
+import "./globals.css";
+import { SessionProvider } from "next-auth/react";
+
+const baseUrl = process.env.NEXT_PUBLIC_BASE_URL ?? "http://localhost:3000";
+
+export const metadata: Metadata = {
+  metadataBase: new URL(baseUrl),
+  title: "EGBE Chatbot",
+  description: "Chatbot template wired to EGBE LiteLLM proxy.",
+};
+
+export const viewport = {
+  maximumScale: 1,
+};
+
+const geist = Geist({
+  subsets: ["latin"],
+  display: "swap",
+  variable: "--font-geist",
+});
+
+const geistMono = Geist_Mono({
+  subsets: ["latin"],
+  display: "swap",
+  variable: "--font-geist-mono",
+});
+
+const LIGHT_THEME_COLOR = "hsl(0 0% 100%)";
+const DARK_THEME_COLOR = "hsl(240deg 10% 3.92%)";
+const THEME_COLOR_SCRIPT = `\
+(function() {
+  var html = document.documentElement;
+  var meta = document.querySelector('meta[name="theme-color"]');
+  if (!meta) {
+    meta = document.createElement('meta');
+    meta.setAttribute('name', 'theme-color');
+    document.head.appendChild(meta);
+  }
+  function updateThemeColor() {
+    var isDark = html.classList.contains('dark');
+    meta.setAttribute('content', isDark ? '${DARK_THEME_COLOR}' : '${LIGHT_THEME_COLOR}');
+  }
+  var observer = new MutationObserver(updateThemeColor);
+  observer.observe(html, { attributes: true, attributeFilter: ['class'] });
+  updateThemeColor();
+})();`;
+
+export default function RootLayout({
+  children,
+}: Readonly<{
+  children: React.ReactNode;
+}>) {
+  return (
+    <html
+      className={`${geist.variable} ${geistMono.variable}`}
+      lang="en"
+      suppressHydrationWarning
+    >
+      <head>
+        <script
+          // biome-ignore lint/security/noDangerouslySetInnerHtml: "Required"
+          dangerouslySetInnerHTML={{
+            __html: THEME_COLOR_SCRIPT,
+          }}
+        />
+      </head>
+      <body className="antialiased">
+        <ThemeProvider
+          attribute="class"
+          defaultTheme="system"
+          disableTransitionOnChange
+          enableSystem
+        >
+          <SessionProvider
+            basePath={`${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/auth`}
+          >
+            <TooltipProvider>{children}</TooltipProvider>
+          </SessionProvider>
+        </ThemeProvider>
+      </body>
+    </html>
+  );
+}

biome.jsonc

@@ -0,0 +1,56 @@
+{
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
+  "extends": [
+    "ultracite/biome/core",
+    "ultracite/biome/next",
+    "ultracite/biome/react"
+  ],
+  "formatter": {
+    "indentStyle": "space",
+    "indentWidth": 2
+  },
+  "files": {
+    "includes": [
+      "**/*",
+      "!components/ai-elements",
+      "!components/elements",
+      "!components/ui",
+      "!lib/utils.ts",
+      "!hooks/use-mobile.ts"
+    ]
+  },
+  "linter": {
+    "rules": {
+      "suspicious": {
+        "noExplicitAny": "off",
+        "noUnknownAtRules": "off",
+        "noConsole": "off",
+        "noBitwiseOperators": "off"
+      },
+      "style": {
+        "noMagicNumbers": "off",
+        "noNestedTernary": "off",
+        "useConsistentTypeDefinitions": "off"
+      },
+      "nursery": {
+        "noUnnecessaryConditions": "off",
+        "useSortedClasses": "off"
+      },
+      "complexity": {
+        "noExcessiveCognitiveComplexity": "off",
+        "useSimplifiedLogicExpression": "off"
+      },
+      "a11y": {
+        "noSvgWithoutTitle": "off"
+      },
+      "correctness": {
+        "useUniqueElementIds": "off",
+        "useImageSize": "off"
+      },
+      "performance": {
+        "noBarrelFile": "off",
+        "useTopLevelRegex": "off"
+      }
+    }
+  }
+}

components.json

@@ -0,0 +1,20 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "radix-maia",
+  "rsc": true,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "app/globals.css",
+    "baseColor": "neutral",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  }
+}

components/ai-elements/code-block.tsx

@@ -0,0 +1,555 @@
+"use client";
+
+import type { ComponentProps, CSSProperties, HTMLAttributes } from "react";
+import type {
+  BundledLanguage,
+  BundledTheme,
+  HighlighterGeneric,
+  ThemedToken,
+} from "shiki";
+
+import { Button } from "@/components/ui/button";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { cn } from "@/lib/utils";
+import { CheckIcon, CopyIcon } from "lucide-react";
+import {
+  createContext,
+  memo,
+  useCallback,
+  useContext,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from "react";
+import { createHighlighter } from "shiki";
+
+// Shiki uses bitflags for font styles: 1=italic, 2=bold, 4=underline
+// biome-ignore lint/suspicious/noBitwiseOperators: shiki bitflag check
+// eslint-disable-next-line no-bitwise -- shiki bitflag check
+const isItalic = (fontStyle: number | undefined) => fontStyle && fontStyle & 1;
+// biome-ignore lint/suspicious/noBitwiseOperators: shiki bitflag check
+// eslint-disable-next-line no-bitwise -- shiki bitflag check
+// oxlint-disable-next-line eslint(no-bitwise)
+const isBold = (fontStyle: number | undefined) => fontStyle && fontStyle & 2;
+const isUnderline = (fontStyle: number | undefined) =>
+  // biome-ignore lint/suspicious/noBitwiseOperators: shiki bitflag check
+  // oxlint-disable-next-line eslint(no-bitwise)
+  fontStyle && fontStyle & 4;
+
+// Transform tokens to include pre-computed keys to avoid noArrayIndexKey lint
+interface KeyedToken {
+  token: ThemedToken;
+  key: string;
+}
+interface KeyedLine {
+  tokens: KeyedToken[];
+  key: string;
+}
+
+const addKeysToTokens = (lines: ThemedToken[][]): KeyedLine[] =>
+  lines.map((line, lineIdx) => ({
+    key: `line-${lineIdx}`,
+    tokens: line.map((token, tokenIdx) => ({
+      key: `line-${lineIdx}-${tokenIdx}`,
+      token,
+    })),
+  }));
+
+// Token rendering component
+const TokenSpan = ({ token }: { token: ThemedToken }) => (
+  <span
+    className="dark:!bg-[var(--shiki-dark-bg)] dark:!text-[var(--shiki-dark)]"
+    style={
+      {
+        backgroundColor: token.bgColor,
+        color: token.color,
+        fontStyle: isItalic(token.fontStyle) ? "italic" : undefined,
+        fontWeight: isBold(token.fontStyle) ? "bold" : undefined,
+        textDecoration: isUnderline(token.fontStyle) ? "underline" : undefined,
+        ...token.htmlStyle,
+      } as CSSProperties
+    }
+  >
+    {token.content}
+  </span>
+);
+
+// Line rendering component
+const LineSpan = ({
+  keyedLine,
+  showLineNumbers,
+}: {
+  keyedLine: KeyedLine;
+  showLineNumbers: boolean;
+}) => (
+  <span className={showLineNumbers ? LINE_NUMBER_CLASSES : "block"}>
+    {keyedLine.tokens.length === 0
+      ? "\n"
+      : keyedLine.tokens.map(({ token, key }) => (
+          <TokenSpan key={key} token={token} />
+        ))}
+  </span>
+);
+
+// Types
+type CodeBlockProps = HTMLAttributes<HTMLDivElement> & {
+  code: string;
+  language: BundledLanguage;
+  showLineNumbers?: boolean;
+};
+
+interface TokenizedCode {
+  tokens: ThemedToken[][];
+  fg: string;
+  bg: string;
+}
+
+interface CodeBlockContextType {
+  code: string;
+}
+
+// Context
+const CodeBlockContext = createContext<CodeBlockContextType>({
+  code: "",
+});
+
+// Highlighter cache (singleton per language)
+const highlighterCache = new Map<
+  string,
+  Promise<HighlighterGeneric<BundledLanguage, BundledTheme>>
+>();
+
+// Token cache
+const tokensCache = new Map<string, TokenizedCode>();
+
+// Subscribers for async token updates
+const subscribers = new Map<string, Set<(result: TokenizedCode) => void>>();
+
+const getTokensCacheKey = (code: string, language: BundledLanguage) => {
+  const start = code.slice(0, 100);
+  const end = code.length > 100 ? code.slice(-100) : "";
+  return `${language}:${code.length}:${start}:${end}`;
+};
+
+const getHighlighter = (
+  language: BundledLanguage
+): Promise<HighlighterGeneric<BundledLanguage, BundledTheme>> => {
+  const cached = highlighterCache.get(language);
+  if (cached) {
+    return cached;
+  }
+
+  const highlighterPromise = createHighlighter({
+    langs: [language],
+    themes: ["github-light", "github-dark"],
+  });
+
+  highlighterCache.set(language, highlighterPromise);
+  return highlighterPromise;
+};
+
+// Create raw tokens for immediate display while highlighting loads
+const createRawTokens = (code: string): TokenizedCode => ({
+  bg: "transparent",
+  fg: "inherit",
+  tokens: code.split("\n").map((line) =>
+    line === ""
+      ? []
+      : [
+          {
+            color: "inherit",
+            content: line,
+          } as ThemedToken,
+        ]
+  ),
+});
+
+// Synchronous highlight with callback for async results
+export const highlightCode = (
+  code: string,
+  language: BundledLanguage,
+  // oxlint-disable-next-line eslint-plugin-promise(prefer-await-to-callbacks)
+  callback?: (result: TokenizedCode) => void
+): TokenizedCode | null => {
+  const tokensCacheKey = getTokensCacheKey(code, language);
+
+  // Return cached result if available
+  const cached = tokensCache.get(tokensCacheKey);
+  if (cached) {
+    return cached;
+  }
+
+  // Subscribe callback if provided
+  if (callback) {
+    if (!subscribers.has(tokensCacheKey)) {
+      subscribers.set(tokensCacheKey, new Set());
+    }
+    subscribers.get(tokensCacheKey)?.add(callback);
+  }
+
+  // Start highlighting in background - fire-and-forget async pattern
+  getHighlighter(language)
+    // oxlint-disable-next-line eslint-plugin-promise(prefer-await-to-then)
+    .then((highlighter) => {
+      const availableLangs = highlighter.getLoadedLanguages();
+      const langToUse = availableLangs.includes(language) ? language : "text";
+
+      const result = highlighter.codeToTokens(code, {
+        lang: langToUse,
+        themes: {
+          dark: "github-dark",
+          light: "github-light",
+        },
+      });
+
+      const tokenized: TokenizedCode = {
+        bg: result.bg ?? "transparent",
+        fg: result.fg ?? "inherit",
+        tokens: result.tokens,
+      };
+
+      // Cache the result
+      tokensCache.set(tokensCacheKey, tokenized);
+
+      // Notify all subscribers
+      const subs = subscribers.get(tokensCacheKey);
+      if (subs) {
+        for (const sub of subs) {
+          sub(tokenized);
+        }
+        subscribers.delete(tokensCacheKey);
+      }
+    })
+    // oxlint-disable-next-line eslint-plugin-promise(prefer-await-to-then), eslint-plugin-promise(prefer-await-to-callbacks)
+    .catch((error) => {
+      console.error("Failed to highlight code:", error);
+      subscribers.delete(tokensCacheKey);
+    });
+
+  return null;
+};
+
+// Line number styles using CSS counters
+const LINE_NUMBER_CLASSES = cn(
+  "block",
+  "before:content-[counter(line)]",
+  "before:inline-block",
+  "before:[counter-increment:line]",
+  "before:w-8",
+  "before:mr-4",
+  "before:text-right",
+  "before:text-muted-foreground/50",
+  "before:font-mono",
+  "before:select-none"
+);
+
+const CodeBlockBody = memo(
+  ({
+    tokenized,
+    showLineNumbers,
+    className,
+  }: {
+    tokenized: TokenizedCode;
+    showLineNumbers: boolean;
+    className?: string;
+  }) => {
+    const preStyle = useMemo(
+      () => ({
+        backgroundColor: tokenized.bg,
+        color: tokenized.fg,
+      }),
+      [tokenized.bg, tokenized.fg]
+    );
+
+    const keyedLines = useMemo(
+      () => addKeysToTokens(tokenized.tokens),
+      [tokenized.tokens]
+    );
+
+    return (
+      <pre
+        className={cn(
+          "dark:!bg-[var(--shiki-dark-bg)] dark:!text-[var(--shiki-dark)] m-0 p-4 text-sm",
+          className
+        )}
+        style={preStyle}
+      >
+        <code
+          className={cn(
+            "font-mono text-sm",
+            showLineNumbers && "[counter-increment:line_0] [counter-reset:line]"
+          )}
+        >
+          {keyedLines.map((keyedLine) => (
+            <LineSpan
+              key={keyedLine.key}
+              keyedLine={keyedLine}
+              showLineNumbers={showLineNumbers}
+            />
+          ))}
+        </code>
+      </pre>
+    );
+  },
+  (prevProps, nextProps) =>
+    prevProps.tokenized === nextProps.tokenized &&
+    prevProps.showLineNumbers === nextProps.showLineNumbers &&
+    prevProps.className === nextProps.className
+);
+
+CodeBlockBody.displayName = "CodeBlockBody";
+
+export const CodeBlockContainer = ({
+  className,
+  language,
+  style,
+  ...props
+}: HTMLAttributes<HTMLDivElement> & { language: string }) => (
+  <div
+    className={cn(
+      "group relative w-full overflow-hidden rounded-md border bg-background text-foreground",
+      className
+    )}
+    data-language={language}
+    style={{
+      containIntrinsicSize: "auto 200px",
+      contentVisibility: "auto",
+      ...style,
+    }}
+    {...props}
+  />
+);
+
+export const CodeBlockHeader = ({
+  children,
+  className,
+  ...props
+}: HTMLAttributes<HTMLDivElement>) => (
+  <div
+    className={cn(
+      "flex items-center justify-between border-b bg-muted/80 px-3 py-2 text-muted-foreground text-xs",
+      className
+    )}
+    {...props}
+  >
+    {children}
+  </div>
+);
+
+export const CodeBlockTitle = ({
+  children,
+  className,
+  ...props
+}: HTMLAttributes<HTMLDivElement>) => (
+  <div className={cn("flex items-center gap-2", className)} {...props}>
+    {children}
+  </div>
+);
+
+export const CodeBlockFilename = ({
+  children,
+  className,
+  ...props
+}: HTMLAttributes<HTMLSpanElement>) => (
+  <span className={cn("font-mono", className)} {...props}>
+    {children}
+  </span>
+);
+
+export const CodeBlockActions = ({
+  children,
+  className,
+  ...props
+}: HTMLAttributes<HTMLDivElement>) => (
+  <div
+    className={cn("-my-1 -mr-1 flex items-center gap-2", className)}
+    {...props}
+  >
+    {children}
+  </div>
+);
+
+export const CodeBlockContent = ({
+  code,
+  language,
+  showLineNumbers = false,
+}: {
+  code: string;
+  language: BundledLanguage;
+  showLineNumbers?: boolean;
+}) => {
+  // Memoized raw tokens for immediate display
+  const rawTokens = useMemo(() => createRawTokens(code), [code]);
+
+  // Try to get cached result synchronously, otherwise use raw tokens
+  const [tokenized, setTokenized] = useState<TokenizedCode>(
+    () => highlightCode(code, language) ?? rawTokens
+  );
+
+  useEffect(() => {
+    let cancelled = false;
+
+    // Reset to raw tokens when code changes (shows current code, not stale tokens)
+    setTokenized(highlightCode(code, language) ?? rawTokens);
+
+    // Subscribe to async highlighting result
+    highlightCode(code, language, (result) => {
+      if (!cancelled) {
+        setTokenized(result);
+      }
+    });
+
+    return () => {
+      cancelled = true;
+    };
+  }, [code, language, rawTokens]);
+
+  return (
+    <div className="relative overflow-auto">
+      <CodeBlockBody showLineNumbers={showLineNumbers} tokenized={tokenized} />
+    </div>
+  );
+};
+
+export const CodeBlock = ({
+  code,
+  language,
+  showLineNumbers = false,
+  className,
+  children,
+  ...props
+}: CodeBlockProps) => {
+  const contextValue = useMemo(() => ({ code }), [code]);
+
+  return (
+    <CodeBlockContext.Provider value={contextValue}>
+      <CodeBlockContainer className={className} language={language} {...props}>
+        {children}
+        <CodeBlockContent
+          code={code}
+          language={language}
+          showLineNumbers={showLineNumbers}
+        />
+      </CodeBlockContainer>
+    </CodeBlockContext.Provider>
+  );
+};
+
+export type CodeBlockCopyButtonProps = ComponentProps<typeof Button> & {
+  onCopy?: () => void;
+  onError?: (error: Error) => void;
+  timeout?: number;
+};
+
+export const CodeBlockCopyButton = ({
+  onCopy,
+  onError,
+  timeout = 2000,
+  children,
+  className,
+  ...props
+}: CodeBlockCopyButtonProps) => {
+  const [isCopied, setIsCopied] = useState(false);
+  const timeoutRef = useRef<number>(0);
+  const { code } = useContext(CodeBlockContext);
+
+  const copyToClipboard = useCallback(async () => {
+    if (typeof window === "undefined" || !navigator?.clipboard?.writeText) {
+      onError?.(new Error("Clipboard API not available"));
+      return;
+    }
+
+    try {
+      if (!isCopied) {
+        await navigator.clipboard.writeText(code);
+        setIsCopied(true);
+        onCopy?.();
+        timeoutRef.current = window.setTimeout(
+          () => setIsCopied(false),
+          timeout
+        );
+      }
+    } catch (error) {
+      onError?.(error as Error);
+    }
+  }, [code, onCopy, onError, timeout, isCopied]);
+
+  useEffect(
+    () => () => {
+      window.clearTimeout(timeoutRef.current);
+    },
+    []
+  );
+
+  const Icon = isCopied ? CheckIcon : CopyIcon;
+
+  return (
+    <Button
+      className={cn("shrink-0", className)}
+      onClick={copyToClipboard}
+      size="icon"
+      variant="ghost"
+      {...props}
+    >
+      {children ?? <Icon size={14} />}
+    </Button>
+  );
+};
+
+export type CodeBlockLanguageSelectorProps = ComponentProps<typeof Select>;
+
+export const CodeBlockLanguageSelector = (
+  props: CodeBlockLanguageSelectorProps
+) => <Select {...props} />;
+
+export type CodeBlockLanguageSelectorTriggerProps = ComponentProps<
+  typeof SelectTrigger
+>;
+
+export const CodeBlockLanguageSelectorTrigger = ({
+  className,
+  ...props
+}: CodeBlockLanguageSelectorTriggerProps) => (
+  <SelectTrigger
+    className={cn(
+      "h-7 border-none bg-transparent px-2 text-xs shadow-none",
+      className
+    )}
+    size="sm"
+    {...props}
+  />
+);
+
+export type CodeBlockLanguageSelectorValueProps = ComponentProps<
+  typeof SelectValue
+>;
+
+export const CodeBlockLanguageSelectorValue = (
+  props: CodeBlockLanguageSelectorValueProps
+) => <SelectValue {...props} />;
+
+export type CodeBlockLanguageSelectorContentProps = ComponentProps<
+  typeof SelectContent
+>;
+
+export const CodeBlockLanguageSelectorContent = ({
+  align = "end",
+  ...props
+}: CodeBlockLanguageSelectorContentProps) => (
+  <SelectContent align={align} {...props} />
+);
+
+export type CodeBlockLanguageSelectorItemProps = ComponentProps<
+  typeof SelectItem
+>;
+
+export const CodeBlockLanguageSelectorItem = (
+  props: CodeBlockLanguageSelectorItemProps
+) => <SelectItem {...props} />;

components/ai-elements/conversation.tsx

@@ -0,0 +1,167 @@
+"use client";
+
+import type { ComponentProps } from "react";
+
+import { Button } from "@/components/ui/button";
+import { cn } from "@/lib/utils";
+import { ArrowDownIcon, DownloadIcon } from "lucide-react";
+import { useCallback } from "react";
+import { StickToBottom, useStickToBottomContext } from "use-stick-to-bottom";
+
+export type ConversationProps = ComponentProps<typeof StickToBottom>;
+
+export const Conversation = ({ className, ...props }: ConversationProps) => (
+  <StickToBottom
+    className={cn("relative flex-1 overflow-y-hidden", className)}
+    initial="smooth"
+    resize="smooth"
+    role="log"
+    {...props}
+  />
+);
+
+export type ConversationContentProps = ComponentProps<
+  typeof StickToBottom.Content
+>;
+
+export const ConversationContent = ({
+  className,
+  ...props
+}: ConversationContentProps) => (
+  <StickToBottom.Content
+    className={cn("flex flex-col gap-8 p-4", className)}
+    {...props}
+  />
+);
+
+export type ConversationEmptyStateProps = ComponentProps<"div"> & {
+  title?: string;
+  description?: string;
+  icon?: React.ReactNode;
+};
+
+export const ConversationEmptyState = ({
+  className,
+  title = "No messages yet",
+  description = "Start a conversation to see messages here",
+  icon,
+  children,
+  ...props
+}: ConversationEmptyStateProps) => (
+  <div
+    className={cn(
+      "flex size-full flex-col items-center justify-center gap-3 p-8 text-center",
+      className
+    )}
+    {...props}
+  >
+    {children ?? (
+      <>
+        {icon && <div className="text-muted-foreground">{icon}</div>}
+        <div className="space-y-1">
+          <h3 className="font-medium text-sm">{title}</h3>
+          {description && (
+            <p className="text-muted-foreground text-sm">{description}</p>
+          )}
+        </div>
+      </>
+    )}
+  </div>
+);
+
+export type ConversationScrollButtonProps = ComponentProps<typeof Button>;
+
+export const ConversationScrollButton = ({
+  className,
+  ...props
+}: ConversationScrollButtonProps) => {
+  const { isAtBottom, scrollToBottom } = useStickToBottomContext();
+
+  const handleScrollToBottom = useCallback(() => {
+    scrollToBottom();
+  }, [scrollToBottom]);
+
+  return (
+    !isAtBottom && (
+      <Button
+        className={cn(
+          "absolute bottom-4 left-[50%] translate-x-[-50%] rounded-full dark:bg-background dark:hover:bg-muted",
+          className
+        )}
+        onClick={handleScrollToBottom}
+        size="icon"
+        type="button"
+        variant="outline"
+        {...props}
+      >
+        <ArrowDownIcon className="size-4" />
+      </Button>
+    )
+  );
+};
+
+export interface ConversationMessage {
+  role: "user" | "assistant" | "system" | "data" | "tool";
+  content: string;
+}
+
+export type ConversationDownloadProps = Omit<
+  ComponentProps<typeof Button>,
+  "onClick"
+> & {
+  messages: ConversationMessage[];
+  filename?: string;
+  formatMessage?: (message: ConversationMessage, index: number) => string;
+};
+
+const defaultFormatMessage = (message: ConversationMessage): string => {
+  const roleLabel =
+    message.role.charAt(0).toUpperCase() + message.role.slice(1);
+  return `**${roleLabel}:** ${message.content}`;
+};
+
+export const messagesToMarkdown = (
+  messages: ConversationMessage[],
+  formatMessage: (
+    message: ConversationMessage,
+    index: number
+  ) => string = defaultFormatMessage
+): string => messages.map((msg, i) => formatMessage(msg, i)).join("\n\n");
+
+export const ConversationDownload = ({
+  messages,
+  filename = "conversation.md",
+  formatMessage = defaultFormatMessage,
+  className,
+  children,
+  ...props
+}: ConversationDownloadProps) => {
+  const handleDownload = useCallback(() => {
+    const markdown = messagesToMarkdown(messages, formatMessage);
+    const blob = new Blob([markdown], { type: "text/markdown" });
+    const url = URL.createObjectURL(blob);
+    const link = document.createElement("a");
+    link.href = url;
+    link.download = filename;
+    document.body.append(link);
+    link.click();
+    link.remove();
+    URL.revokeObjectURL(url);
+  }, [messages, filename, formatMessage]);
+
+  return (
+    <Button
+      className={cn(
+        "absolute top-4 right-4 rounded-full dark:bg-background dark:hover:bg-muted",
+        className
+      )}
+      onClick={handleDownload}
+      size="icon"
+      type="button"
+      variant="outline"
+      {...props}
+    >
+      {children ?? <DownloadIcon className="size-4" />}
+    </Button>
+  );
+};

components/ai-elements/message.tsx

@@ -0,0 +1,357 @@
+"use client";
+
+import type { UIMessage } from "ai";
+import type { ComponentProps, HTMLAttributes, ReactElement } from "react";
+
+import { Button } from "@/components/ui/button";
+import {
+  ButtonGroup,
+  ButtonGroupText,
+} from "@/components/ui/button-group";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipProvider,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+import { cn } from "@/lib/utils";
+import { cjk } from "@streamdown/cjk";
+import { code } from "@streamdown/code";
+import { math } from "@streamdown/math";
+import { mermaid } from "@streamdown/mermaid";
+import { ChevronLeftIcon, ChevronRightIcon } from "lucide-react";
+import {
+  createContext,
+  memo,
+  useCallback,
+  useContext,
+  useEffect,
+  useMemo,
+  useState,
+} from "react";
+import { Streamdown } from "streamdown";
+
+export type MessageProps = HTMLAttributes<HTMLDivElement> & {
+  from: UIMessage["role"];
+};
+
+export const Message = ({ className, from, ...props }: MessageProps) => (
+  <div
+    className={cn(
+      "group flex w-full max-w-[95%] flex-col gap-2",
+      from === "user" ? "is-user ml-auto justify-end" : "is-assistant",
+      className
+    )}
+    {...props}
+  />
+);
+
+export type MessageContentProps = HTMLAttributes<HTMLDivElement>;
+
+export const MessageContent = ({
+  children,
+  className,
+  ...props
+}: MessageContentProps) => (
+  <div
+    className={cn(
+      "flex min-w-0 max-w-full flex-col gap-2 overflow-hidden text-sm text-foreground",
+      className
+    )}
+    {...props}
+  >
+    {children}
+  </div>
+);
+
+export type MessageActionsProps = ComponentProps<"div">;
+
+export const MessageActions = ({
+  className,
+  children,
+  ...props
+}: MessageActionsProps) => (
+  <div className={cn("flex items-center gap-1", className)} {...props}>
+    {children}
+  </div>
+);
+
+export type MessageActionProps = ComponentProps<typeof Button> & {
+  tooltip?: string;
+  label?: string;
+};
+
+export const MessageAction = ({
+  tooltip,
+  children,
+  label,
+  variant = "ghost",
+  size = "icon-sm",
+  ...props
+}: MessageActionProps) => {
+  const button = (
+    <Button size={size} type="button" variant={variant} {...props}>
+      {children}
+      <span className="sr-only">{label || tooltip}</span>
+    </Button>
+  );
+
+  if (tooltip) {
+    return (
+      <TooltipProvider>
+        <Tooltip>
+          <TooltipTrigger asChild>{button}</TooltipTrigger>
+          <TooltipContent>
+            <p>{tooltip}</p>
+          </TooltipContent>
+        </Tooltip>
+      </TooltipProvider>
+    );
+  }
+
+  return button;
+};
+
+interface MessageBranchContextType {
+  currentBranch: number;
+  totalBranches: number;
+  goToPrevious: () => void;
+  goToNext: () => void;
+  branches: ReactElement[];
+  setBranches: (branches: ReactElement[]) => void;
+}
+
+const MessageBranchContext = createContext<MessageBranchContextType | null>(
+  null
+);
+
+const useMessageBranch = () => {
+  const context = useContext(MessageBranchContext);
+
+  if (!context) {
+    throw new Error(
+      "MessageBranch components must be used within MessageBranch"
+    );
+  }
+
+  return context;
+};
+
+export type MessageBranchProps = HTMLAttributes<HTMLDivElement> & {
+  defaultBranch?: number;
+  onBranchChange?: (branchIndex: number) => void;
+};
+
+export const MessageBranch = ({
+  defaultBranch = 0,
+  onBranchChange,
+  className,
+  ...props
+}: MessageBranchProps) => {
+  const [currentBranch, setCurrentBranch] = useState(defaultBranch);
+  const [branches, setBranches] = useState<ReactElement[]>([]);
+
+  const handleBranchChange = useCallback(
+    (newBranch: number) => {
+      setCurrentBranch(newBranch);
+      onBranchChange?.(newBranch);
+    },
+    [onBranchChange]
+  );
+
+  const goToPrevious = useCallback(() => {
+    const newBranch =
+      currentBranch > 0 ? currentBranch - 1 : branches.length - 1;
+    handleBranchChange(newBranch);
+  }, [currentBranch, branches.length, handleBranchChange]);
+
+  const goToNext = useCallback(() => {
+    const newBranch =
+      currentBranch < branches.length - 1 ? currentBranch + 1 : 0;
+    handleBranchChange(newBranch);
+  }, [currentBranch, branches.length, handleBranchChange]);
+
+  const contextValue = useMemo<MessageBranchContextType>(
+    () => ({
+      branches,
+      currentBranch,
+      goToNext,
+      goToPrevious,
+      setBranches,
+      totalBranches: branches.length,
+    }),
+    [branches, currentBranch, goToNext, goToPrevious]
+  );
+
+  return (
+    <MessageBranchContext.Provider value={contextValue}>
+      <div
+        className={cn("grid w-full gap-2 [&>div]:pb-0", className)}
+        {...props}
+      />
+    </MessageBranchContext.Provider>
+  );
+};
+
+export type MessageBranchContentProps = HTMLAttributes<HTMLDivElement>;
+
+export const MessageBranchContent = ({
+  children,
+  ...props
+}: MessageBranchContentProps) => {
+  const { currentBranch, setBranches, branches } = useMessageBranch();
+  const childrenArray = useMemo(
+    () => (Array.isArray(children) ? children : [children]),
+    [children]
+  );
+
+  // Use useEffect to update branches when they change
+  useEffect(() => {
+    if (branches.length !== childrenArray.length) {
+      setBranches(childrenArray);
+    }
+  }, [childrenArray, branches, setBranches]);
+
+  return childrenArray.map((branch, index) => (
+    <div
+      className={cn(
+        "grid gap-2 overflow-hidden [&>div]:pb-0",
+        index === currentBranch ? "block" : "hidden"
+      )}
+      key={branch.key}
+      {...props}
+    >
+      {branch}
+    </div>
+  ));
+};
+
+export type MessageBranchSelectorProps = ComponentProps<typeof ButtonGroup>;
+
+export const MessageBranchSelector = ({
+  className,
+  ...props
+}: MessageBranchSelectorProps) => {
+  const { totalBranches } = useMessageBranch();
+
+  // Don't render if there's only one branch
+  if (totalBranches <= 1) {
+    return null;
+  }
+
+  return (
+    <ButtonGroup
+      className={cn(
+        "[&>*:not(:first-child)]:rounded-l-md [&>*:not(:last-child)]:rounded-r-md",
+        className
+      )}
+      orientation="horizontal"
+      {...props}
+    />
+  );
+};
+
+export type MessageBranchPreviousProps = ComponentProps<typeof Button>;
+
+export const MessageBranchPrevious = ({
+  children,
+  ...props
+}: MessageBranchPreviousProps) => {
+  const { goToPrevious, totalBranches } = useMessageBranch();
+
+  return (
+    <Button
+      aria-label="Previous branch"
+      disabled={totalBranches <= 1}
+      onClick={goToPrevious}
+      size="icon-sm"
+      type="button"
+      variant="ghost"
+      {...props}
+    >
+      {children ?? <ChevronLeftIcon size={14} />}
+    </Button>
+  );
+};
+
+export type MessageBranchNextProps = ComponentProps<typeof Button>;
+
+export const MessageBranchNext = ({
+  children,
+  ...props
+}: MessageBranchNextProps) => {
+  const { goToNext, totalBranches } = useMessageBranch();
+
+  return (
+    <Button
+      aria-label="Next branch"
+      disabled={totalBranches <= 1}
+      onClick={goToNext}
+      size="icon-sm"
+      type="button"
+      variant="ghost"
+      {...props}
+    >
+      {children ?? <ChevronRightIcon size={14} />}
+    </Button>
+  );
+};
+
+export type MessageBranchPageProps = HTMLAttributes<HTMLSpanElement>;
+
+export const MessageBranchPage = ({
+  className,
+  ...props
+}: MessageBranchPageProps) => {
+  const { currentBranch, totalBranches } = useMessageBranch();
+
+  return (
+    <ButtonGroupText
+      className={cn(
+        "border-none bg-transparent text-muted-foreground shadow-none",
+        className
+      )}
+      {...props}
+    >
+      {currentBranch + 1} of {totalBranches}
+    </ButtonGroupText>
+  );
+};
+
+export type MessageResponseProps = ComponentProps<typeof Streamdown>;
+
+const streamdownPlugins = { cjk, code, math, mermaid };
+
+export const MessageResponse = memo(
+  ({ className, ...props }: MessageResponseProps) => (
+    <Streamdown
+      className={cn(
+        "size-full [&>*:first-child]:mt-0 [&>*:last-child]:mb-0",
+        className
+      )}
+      plugins={streamdownPlugins}
+      {...props}
+    />
+  ),
+  (prevProps, nextProps) => prevProps.children === nextProps.children
+);
+
+MessageResponse.displayName = "MessageResponse";
+
+export type MessageToolbarProps = ComponentProps<"div">;
+
+export const MessageToolbar = ({
+  className,
+  children,
+  ...props
+}: MessageToolbarProps) => (
+  <div
+    className={cn(
+      "mt-4 flex w-full items-center justify-between gap-4",
+      className
+    )}
+    {...props}
+  >
+    {children}
+  </div>
+);

components/ai-elements/model-selector.tsx

@@ -0,0 +1,208 @@
+import type { ComponentProps, ReactNode } from "react";
+
+import {
+  Command,
+  CommandEmpty,
+  CommandGroup,
+  CommandInput,
+  CommandItem,
+  CommandList,
+  CommandSeparator,
+  CommandShortcut,
+} from "@/components/ui/command";
+import {
+  Popover,
+  PopoverContent,
+  PopoverTrigger,
+} from "@/components/ui/popover";
+import type { Popover as PopoverPrimitive } from "radix-ui";
+import { cn } from "@/lib/utils";
+
+export type ModelSelectorProps = React.ComponentProps<typeof PopoverPrimitive.Root>;
+
+export const ModelSelector = (props: ModelSelectorProps) => (
+  <Popover {...props} />
+);
+
+export type ModelSelectorTriggerProps = ComponentProps<typeof PopoverTrigger>;
+
+export const ModelSelectorTrigger = (props: ModelSelectorTriggerProps) => (
+  <PopoverTrigger {...props} />
+);
+
+export type ModelSelectorContentProps = ComponentProps<typeof PopoverContent> & {
+  title?: ReactNode;
+};
+
+export const ModelSelectorContent = ({
+  className,
+  children,
+  title: _title,
+  ...props
+}: ModelSelectorContentProps) => (
+  <PopoverContent
+    align="start"
+    className={cn(
+      "w-[280px] p-0 rounded-xl border border-border/60 bg-card/95 backdrop-blur-xl shadow-[var(--shadow-float)]",
+      className
+    )}
+    side="top"
+    sideOffset={8}
+    {...props}
+  >
+    <Command className="**:data-[slot=command-input-wrapper]:h-auto">
+      {children}
+    </Command>
+  </PopoverContent>
+);
+
+export type ModelSelectorInputProps = ComponentProps<typeof CommandInput>;
+
+export const ModelSelectorInput = ({
+  className,
+  ...props
+}: ModelSelectorInputProps) => (
+  <CommandInput className={cn("h-auto py-2.5 text-[13px]", className)} {...props} />
+);
+
+export type ModelSelectorListProps = ComponentProps<typeof CommandList>;
+
+export const ModelSelectorList = ({ className, ...props }: ModelSelectorListProps) => (
+  <CommandList className={cn("max-h-[280px]", className)} {...props} />
+);
+
+export type ModelSelectorEmptyProps = ComponentProps<typeof CommandEmpty>;
+
+export const ModelSelectorEmpty = (props: ModelSelectorEmptyProps) => (
+  <CommandEmpty {...props} />
+);
+
+export type ModelSelectorGroupProps = ComponentProps<typeof CommandGroup>;
+
+export const ModelSelectorGroup = (props: ModelSelectorGroupProps) => (
+  <CommandGroup {...props} />
+);
+
+export type ModelSelectorItemProps = ComponentProps<typeof CommandItem>;
+
+export const ModelSelectorItem = ({ className, ...props }: ModelSelectorItemProps) => (
+  <CommandItem className={cn("w-full text-[13px] rounded-lg", className)} {...props} />
+);
+
+export type ModelSelectorShortcutProps = ComponentProps<typeof CommandShortcut>;
+
+export const ModelSelectorShortcut = (props: ModelSelectorShortcutProps) => (
+  <CommandShortcut {...props} />
+);
+
+export type ModelSelectorSeparatorProps = ComponentProps<
+  typeof CommandSeparator
+>;
+
+export const ModelSelectorSeparator = (props: ModelSelectorSeparatorProps) => (
+  <CommandSeparator {...props} />
+);
+
+export type ModelSelectorLogoProps = Omit<
+  ComponentProps<"img">,
+  "src" | "alt"
+> & {
+  provider:
+    | "moonshotai-cn"
+    | "lucidquery"
+    | "moonshotai"
+    | "zai-coding-plan"
+    | "alibaba"
+    | "xai"
+    | "vultr"
+    | "nvidia"
+    | "upstage"
+    | "groq"
+    | "github-copilot"
+    | "mistral"
+    | "vercel"
+    | "nebius"
+    | "deepseek"
+    | "alibaba-cn"
+    | "google-vertex-anthropic"
+    | "venice"
+    | "chutes"
+    | "cortecs"
+    | "github-models"
+    | "togetherai"
+    | "azure"
+    | "baseten"
+    | "huggingface"
+    | "opencode"
+    | "fastrouter"
+    | "google"
+    | "google-vertex"
+    | "cloudflare-workers-ai"
+    | "inception"
+    | "wandb"
+    | "openai"
+    | "zhipuai-coding-plan"
+    | "perplexity"
+    | "openrouter"
+    | "zenmux"
+    | "v0"
+    | "iflowcn"
+    | "synthetic"
+    | "deepinfra"
+    | "zhipuai"
+    | "submodel"
+    | "zai"
+    | "inference"
+    | "requesty"
+    | "morph"
+    | "lmstudio"
+    | "anthropic"
+    | "aihubmix"
+    | "fireworks-ai"
+    | "modelscope"
+    | "llama"
+    | "scaleway"
+    | "amazon-bedrock"
+    | "cerebras"
+    // oxlint-disable-next-line typescript-eslint(ban-types) -- intentional pattern for autocomplete-friendly string union
+    | (string & {});
+};
+
+export const ModelSelectorLogo = ({
+  provider,
+  className,
+  ...props
+}: ModelSelectorLogoProps) => (
+  <img
+    {...props}
+    alt={`${provider} logo`}
+    className={cn("size-4 dark:invert", className)}
+    height={16}
+    src={`https://models.dev/logos/${provider}.svg`}
+    width={16}
+  />
+);
+
+export type ModelSelectorLogoGroupProps = ComponentProps<"div">;
+
+export const ModelSelectorLogoGroup = ({
+  className,
+  ...props
+}: ModelSelectorLogoGroupProps) => (
+  <div
+    className={cn(
+      "flex shrink-0 items-center -space-x-1 [&>img]:rounded-full [&>img]:p-px [&>img]:ring-1 [&>img]:ring-border/30",
+      className
+    )}
+    {...props}
+  />
+);
+
+export type ModelSelectorNameProps = ComponentProps<"span">;
+
+export const ModelSelectorName = ({
+  className,
+  ...props
+}: ModelSelectorNameProps) => (
+  <span className={cn("flex-1 truncate text-left", className)} {...props} />
+);

components/ai-elements/reasoning.tsx

@@ -0,0 +1,241 @@
+"use client";
+
+import type { ComponentProps, HTMLAttributes, ReactNode } from "react";
+
+import { useControllableState } from "@radix-ui/react-use-controllable-state";
+import {
+  Collapsible,
+  CollapsibleTrigger,
+} from "@/components/ui/collapsible";
+import { cn } from "@/lib/utils";
+import { cjk } from "@streamdown/cjk";
+import { code } from "@streamdown/code";
+import { math } from "@streamdown/math";
+import { mermaid } from "@streamdown/mermaid";
+import { ChevronDownIcon } from "lucide-react";
+import {
+  createContext,
+  memo,
+  useCallback,
+  useContext,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from "react";
+import { Streamdown } from "streamdown";
+
+import { Shimmer } from "./shimmer";
+
+interface ReasoningContextValue {
+  isStreaming: boolean;
+  isOpen: boolean;
+  setIsOpen: (open: boolean) => void;
+  duration: number | undefined;
+}
+
+const ReasoningContext = createContext<ReasoningContextValue | null>(null);
+
+export const useReasoning = () => {
+  const context = useContext(ReasoningContext);
+  if (!context) {
+    throw new Error("Reasoning components must be used within Reasoning");
+  }
+  return context;
+};
+
+export type ReasoningProps = ComponentProps<typeof Collapsible> & {
+  isStreaming?: boolean;
+  open?: boolean;
+  defaultOpen?: boolean;
+  onOpenChange?: (open: boolean) => void;
+  duration?: number;
+};
+
+const AUTO_CLOSE_DELAY = 1000;
+const MS_IN_S = 1000;
+
+export const Reasoning = memo(
+  ({
+    className,
+    isStreaming = false,
+    open,
+    defaultOpen,
+    onOpenChange,
+    duration: durationProp,
+    children,
+    ...props
+  }: ReasoningProps) => {
+    const resolvedDefaultOpen = defaultOpen ?? isStreaming;
+    // Track if defaultOpen was explicitly set to false (to prevent auto-open)
+    const isExplicitlyClosed = defaultOpen === false;
+
+    const [isOpen, setIsOpen] = useControllableState<boolean>({
+      defaultProp: resolvedDefaultOpen,
+      onChange: onOpenChange,
+      prop: open,
+    });
+    const [duration, setDuration] = useControllableState<number | undefined>({
+      defaultProp: undefined,
+      prop: durationProp,
+    });
+
+    const hasEverStreamedRef = useRef(isStreaming);
+    const [hasAutoClosed, setHasAutoClosed] = useState(false);
+    const startTimeRef = useRef<number | null>(null);
+
+    // Track when streaming starts and compute duration
+    useEffect(() => {
+      if (isStreaming) {
+        hasEverStreamedRef.current = true;
+        if (startTimeRef.current === null) {
+          startTimeRef.current = Date.now();
+        }
+      } else if (startTimeRef.current !== null) {
+        setDuration(Math.ceil((Date.now() - startTimeRef.current) / MS_IN_S));
+        startTimeRef.current = null;
+      }
+    }, [isStreaming, setDuration]);
+
+    // Auto-open when streaming starts (unless explicitly closed)
+    useEffect(() => {
+      if (isStreaming && !isOpen && !isExplicitlyClosed) {
+        setIsOpen(true);
+      }
+    }, [isStreaming, isOpen, setIsOpen, isExplicitlyClosed]);
+
+    // Auto-close when streaming ends (once only, and only if it ever streamed)
+    useEffect(() => {
+      if (
+        hasEverStreamedRef.current &&
+        !isStreaming &&
+        isOpen &&
+        !hasAutoClosed
+      ) {
+        const timer = setTimeout(() => {
+          setIsOpen(false);
+          setHasAutoClosed(true);
+        }, AUTO_CLOSE_DELAY);
+
+        return () => clearTimeout(timer);
+      }
+    }, [isStreaming, isOpen, setIsOpen, hasAutoClosed]);
+
+    const handleOpenChange = useCallback(
+      (newOpen: boolean) => {
+        setIsOpen(newOpen);
+      },
+      [setIsOpen]
+    );
+
+    const contextValue = useMemo(
+      () => ({ duration, isOpen, isStreaming, setIsOpen }),
+      [duration, isOpen, isStreaming, setIsOpen]
+    );
+
+    return (
+      <ReasoningContext.Provider value={contextValue}>
+        <Collapsible
+          className={cn("not-prose", className)}
+          onOpenChange={handleOpenChange}
+          open={isOpen}
+          {...props}
+        >
+          {children}
+        </Collapsible>
+      </ReasoningContext.Provider>
+    );
+  }
+);
+
+export type ReasoningTriggerProps = ComponentProps<
+  typeof CollapsibleTrigger
+> & {
+  getThinkingMessage?: (isStreaming: boolean, duration?: number) => ReactNode;
+};
+
+const defaultGetThinkingMessage = (isStreaming: boolean, duration?: number) => {
+  if (isStreaming || duration === 0) {
+    return <Shimmer className="font-medium" duration={1}>Thinking...</Shimmer>;
+  }
+  if (duration === undefined) {
+    return <p>Thought for a few seconds</p>;
+  }
+  return <p>Thought for {duration} seconds</p>;
+};
+
+export const ReasoningTrigger = memo(
+  ({
+    className,
+    children,
+    getThinkingMessage = defaultGetThinkingMessage,
+    ...props
+  }: ReasoningTriggerProps) => {
+    const { isStreaming, isOpen, duration } = useReasoning();
+
+    return (
+      <CollapsibleTrigger
+        className={cn(
+          "flex w-full items-center gap-2 text-muted-foreground text-[13px] leading-[1.65] transition-colors hover:text-foreground",
+          className
+        )}
+        {...props}
+      >
+        {children ?? (
+          <>
+            {getThinkingMessage(isStreaming, duration)}
+            <ChevronDownIcon
+              className={cn(
+                "size-4 transition-transform",
+                isOpen ? "rotate-180" : "rotate-0"
+              )}
+            />
+          </>
+        )}
+      </CollapsibleTrigger>
+    );
+  }
+);
+
+export type ReasoningContentProps = HTMLAttributes<HTMLDivElement> & {
+  children: string;
+};
+
+const streamdownPlugins = { cjk, code, math, mermaid };
+
+export const ReasoningContent = memo(
+  ({ className, children, dir: _dir, ...props }: ReasoningContentProps) => {
+    const { isStreaming, isOpen } = useReasoning();
+    const scrollRef = useRef<HTMLDivElement>(null);
+    useEffect(() => {
+      if (isStreaming && scrollRef.current) {
+        scrollRef.current.scrollTop = scrollRef.current.scrollHeight;
+      }
+    }, [children, isStreaming]);
+
+    if (!isOpen) return null;
+
+    return (
+      <div
+        className={cn(
+          "mt-2 animate-in fade-in-0 duration-200 text-muted-foreground/60 [overflow-anchor:none]",
+          className
+        )}
+      >
+        <div
+          className="max-h-[200px] overflow-y-auto rounded-lg border border-border/20 bg-muted/30 px-3 py-2 text-[11px] leading-relaxed"
+          ref={scrollRef}
+          style={{ scrollbarWidth: "none", msOverflowStyle: "none" }}
+        >
+          <Streamdown plugins={streamdownPlugins} {...(props as object)}>
+            {children}
+          </Streamdown>
+        </div>
+      </div>
+    );
+  }
+);
+
+Reasoning.displayName = "Reasoning";
+ReasoningTrigger.displayName = "ReasoningTrigger";
+ReasoningContent.displayName = "ReasoningContent";

components/ai-elements/shimmer.tsx

@@ -0,0 +1,78 @@
+"use client";
+
+import type { MotionProps } from "motion/react";
+import type { CSSProperties, ElementType, JSX } from "react";
+
+import { cn } from "@/lib/utils";
+import { motion } from "motion/react";
+import { memo, useMemo } from "react";
+
+type MotionHTMLProps = MotionProps & Record<string, unknown>;
+
+// Cache motion components at module level to avoid creating during render
+const motionComponentCache = new Map<
+  keyof JSX.IntrinsicElements,
+  React.ComponentType<MotionHTMLProps>
+>();
+
+const getMotionComponent = (element: keyof JSX.IntrinsicElements) => {
+  let component = motionComponentCache.get(element);
+  if (!component) {
+    component = motion.create(element);
+    motionComponentCache.set(element, component);
+  }
+  return component;
+};
+
+export interface TextShimmerProps {
+  children: string;
+  as?: ElementType;
+  className?: string;
+  duration?: number;
+  spread?: number;
+}
+
+const ShimmerComponent = ({
+  children,
+  as: Component = "p",
+  className,
+  duration = 2,
+  spread = 2,
+}: TextShimmerProps) => {
+  const MotionComponent = getMotionComponent(
+    Component as keyof JSX.IntrinsicElements
+  );
+
+  const dynamicSpread = useMemo(
+    () => (children?.length ?? 0) * spread,
+    [children, spread]
+  );
+
+  return (
+    <MotionComponent
+      animate={{ backgroundPosition: "0% center" }}
+      className={cn(
+        "relative inline-block bg-[length:250%_100%,auto] bg-clip-text text-transparent",
+        "[--bg:linear-gradient(90deg,#0000_calc(50%-var(--spread)),var(--color-background),#0000_calc(50%+var(--spread)))] [background-repeat:no-repeat,padding-box]",
+        className
+      )}
+      initial={{ backgroundPosition: "100% center" }}
+      style={
+        {
+          "--spread": `${dynamicSpread}px`,
+          backgroundImage:
+            "var(--bg), linear-gradient(var(--color-muted-foreground), var(--color-muted-foreground))",
+        } as CSSProperties
+      }
+      transition={{
+        duration,
+        ease: "linear",
+        repeat: Number.POSITIVE_INFINITY,
+      }}
+    >
+      {children}
+    </MotionComponent>
+  );
+};
+
+export const Shimmer = memo(ShimmerComponent);

components/ai-elements/suggestion.tsx

@@ -0,0 +1,58 @@
+"use client";
+
+import type { ComponentProps } from "react";
+
+import { Button } from "@/components/ui/button";
+import {
+  ScrollArea,
+  ScrollBar,
+} from "@/components/ui/scroll-area";
+import { cn } from "@/lib/utils";
+import { useCallback } from "react";
+
+export type SuggestionsProps = ComponentProps<typeof ScrollArea>;
+
+export const Suggestions = ({
+  className,
+  children,
+  ...props
+}: SuggestionsProps) => (
+  <ScrollArea className="w-full overflow-x-auto whitespace-nowrap" {...props}>
+    <div className={cn("flex w-max flex-nowrap items-center gap-2", className)}>
+      {children}
+    </div>
+    <ScrollBar className="hidden" orientation="horizontal" />
+  </ScrollArea>
+);
+
+export type SuggestionProps = Omit<ComponentProps<typeof Button>, "onClick"> & {
+  suggestion: string;
+  onClick?: (suggestion: string) => void;
+};
+
+export const Suggestion = ({
+  suggestion,
+  onClick,
+  className,
+  variant = "outline",
+  size = "sm",
+  children,
+  ...props
+}: SuggestionProps) => {
+  const handleClick = useCallback(() => {
+    onClick?.(suggestion);
+  }, [onClick, suggestion]);
+
+  return (
+    <Button
+      className={cn("cursor-pointer rounded-full px-4", className)}
+      onClick={handleClick}
+      size={size}
+      type="button"
+      variant={variant}
+      {...props}
+    >
+      {children || suggestion}
+    </Button>
+  );
+};

components/ai-elements/tool.tsx

@@ -0,0 +1,172 @@
+"use client";
+
+import type { DynamicToolUIPart, ToolUIPart } from "ai";
+import type { ComponentProps, ReactNode } from "react";
+
+import { Badge } from "@/components/ui/badge";
+import {
+  Collapsible,
+  CollapsibleContent,
+  CollapsibleTrigger,
+} from "@/components/ui/collapsible";
+import { cn } from "@/lib/utils";
+import {
+  CheckCircleIcon,
+  ChevronDownIcon,
+  CircleIcon,
+  ClockIcon,
+  WrenchIcon,
+  XCircleIcon,
+} from "lucide-react";
+import { isValidElement } from "react";
+
+import { CodeBlock } from "./code-block";
+
+export type ToolProps = ComponentProps<typeof Collapsible>;
+
+export const Tool = ({ className, ...props }: ToolProps) => (
+  <Collapsible
+    className={cn("group not-prose mb-4 w-full rounded-md border", className)}
+    {...props}
+  />
+);
+
+export type ToolPart = ToolUIPart | DynamicToolUIPart;
+
+export type ToolHeaderProps = {
+  title?: string;
+  className?: string;
+} & (
+  | { type: ToolUIPart["type"]; state: ToolUIPart["state"]; toolName?: never }
+  | {
+      type: DynamicToolUIPart["type"];
+      state: DynamicToolUIPart["state"];
+      toolName: string;
+    }
+);
+
+const statusLabels: Record<ToolPart["state"], string> = {
+  "approval-requested": "Awaiting Approval",
+  "approval-responded": "Responded",
+  "input-available": "Running",
+  "input-streaming": "Pending",
+  "output-available": "Completed",
+  "output-denied": "Denied",
+  "output-error": "Error",
+};
+
+const statusIcons: Record<ToolPart["state"], ReactNode> = {
+  "approval-requested": <ClockIcon className="size-4 text-yellow-600" />,
+  "approval-responded": <CheckCircleIcon className="size-4 text-blue-600" />,
+  "input-available": <ClockIcon className="size-4 animate-pulse" />,
+  "input-streaming": <CircleIcon className="size-4" />,
+  "output-available": <CheckCircleIcon className="size-4 text-green-600" />,
+  "output-denied": <XCircleIcon className="size-4 text-orange-600" />,
+  "output-error": <XCircleIcon className="size-4 text-red-600" />,
+};
+
+export const getStatusBadge = (status: ToolPart["state"]) => (
+  <Badge className="gap-1.5 rounded-full text-xs" variant="secondary">
+    {statusIcons[status]}
+    {statusLabels[status]}
+  </Badge>
+);
+
+export const ToolHeader = ({
+  className,
+  title,
+  type,
+  state,
+  toolName,
+  ...props
+}: ToolHeaderProps) => {
+  const derivedName =
+    type === "dynamic-tool" ? toolName : type.split("-").slice(1).join("-");
+
+  return (
+    <CollapsibleTrigger
+      className={cn(
+        "flex w-full items-center justify-between gap-4 p-3",
+        className
+      )}
+      {...props}
+    >
+      <div className="flex items-center gap-2">
+        <WrenchIcon className="size-4 text-muted-foreground" />
+        <span className="font-medium text-sm">{title ?? derivedName}</span>
+        {getStatusBadge(state)}
+      </div>
+      <ChevronDownIcon className="size-4 text-muted-foreground transition-transform group-data-[state=open]:rotate-180" />
+    </CollapsibleTrigger>
+  );
+};
+
+export type ToolContentProps = ComponentProps<typeof CollapsibleContent>;
+
+export const ToolContent = ({ className, ...props }: ToolContentProps) => (
+  <CollapsibleContent
+    className={cn(
+      "data-[state=closed]:fade-out-0 data-[state=closed]:slide-out-to-top-2 data-[state=open]:slide-in-from-top-2 space-y-4 p-4 text-popover-foreground outline-none data-[state=closed]:animate-out data-[state=open]:animate-in",
+      className
+    )}
+    {...props}
+  />
+);
+
+export type ToolInputProps = ComponentProps<"div"> & {
+  input: ToolPart["input"];
+};
+
+export const ToolInput = ({ className, input, ...props }: ToolInputProps) => (
+  <div className={cn("space-y-2 overflow-hidden", className)} {...props}>
+    <h4 className="font-medium text-muted-foreground text-xs uppercase tracking-wide">
+      Parameters
+    </h4>
+    <div className="rounded-md bg-muted/50">
+      <CodeBlock code={JSON.stringify(input, null, 2)} language="json" />
+    </div>
+  </div>
+);
+
+export type ToolOutputProps = ComponentProps<"div"> & {
+  output: ToolPart["output"];
+  errorText: ToolPart["errorText"];
+};
+
+export const ToolOutput = ({
+  className,
+  output,
+  errorText,
+  ...props
+}: ToolOutputProps) => {
+  if (!(output || errorText)) {
+    return null;
+  }
+
+  let Output = <div>{output as ReactNode}</div>;
+
+  if (typeof output === "object" && !isValidElement(output)) {
+    Output = (
+      <CodeBlock code={JSON.stringify(output, null, 2)} language="json" />
+    );
+  } else if (typeof output === "string") {
+    Output = <CodeBlock code={output} language="json" />;
+  }
+
+  return (
+    <div className={cn("space-y-2", className)} {...props}>
+      <h4 className="font-medium text-muted-foreground text-xs uppercase tracking-wide">
+        {errorText ? "Error" : "Result"}
+      </h4>
+      <div
+        className={cn(
+          "overflow-x-auto rounded-md text-xs [&_table]:w-full",
+          errorText && "bg-destructive/10 text-destructive"
+        )}
+      >
+        {errorText && <div>{errorText}</div>}
+        {Output}
+      </div>
+    </div>
+  );
+};

components/chat/app-sidebar.tsx

@@ -0,0 +1,165 @@
+"use client";
+
+import {
+  MessageSquareIcon,
+  PanelLeftIcon,
+  PenSquareIcon,
+  TrashIcon,
+} from "lucide-react";
+import Link from "next/link";
+import { useRouter } from "next/navigation";
+import type { User } from "next-auth";
+import { useState } from "react";
+import { toast } from "sonner";
+import { useSWRConfig } from "swr";
+import { unstable_serialize } from "swr/infinite";
+import {
+  getChatHistoryPaginationKey,
+  SidebarHistory,
+} from "@/components/chat/sidebar-history";
+import { SidebarUserNav } from "@/components/chat/sidebar-user-nav";
+import {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarGroup,
+  SidebarGroupContent,
+  SidebarHeader,
+  SidebarMenu,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarRail,
+  SidebarTrigger,
+  useSidebar,
+} from "@/components/ui/sidebar";
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from "../ui/alert-dialog";
+import { Tooltip, TooltipContent, TooltipTrigger } from "../ui/tooltip";
+
+export function AppSidebar({ user }: { user: User | undefined }) {
+  const router = useRouter();
+  const { setOpenMobile, toggleSidebar } = useSidebar();
+  const { mutate } = useSWRConfig();
+  const [showDeleteAllDialog, setShowDeleteAllDialog] = useState(false);
+
+  const handleDeleteAll = () => {
+    setShowDeleteAllDialog(false);
+    router.replace("/");
+    mutate(unstable_serialize(getChatHistoryPaginationKey), [], {
+      revalidate: false,
+    });
+
+    fetch(`${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/history`, {
+      method: "DELETE",
+    });
+
+    toast.success("All chats deleted");
+  };
+
+  return (
+    <>
+      <Sidebar collapsible="icon">
+        <SidebarHeader className="pb-0 pt-3">
+          <SidebarMenu>
+            <SidebarMenuItem className="flex flex-row items-center justify-between">
+              <div className="group/logo relative flex items-center justify-center">
+                <SidebarMenuButton
+                  asChild
+                  className="size-8 !px-0 items-center justify-center group-data-[collapsible=icon]:group-hover/logo:opacity-0"
+                  tooltip="Chatbot"
+                >
+                  <Link href="/" onClick={() => setOpenMobile(false)}>
+                    <MessageSquareIcon className="size-4 text-sidebar-foreground/50" />
+                  </Link>
+                </SidebarMenuButton>
+                <Tooltip>
+                  <TooltipTrigger asChild>
+                    <SidebarMenuButton
+                      className="pointer-events-none absolute inset-0 size-8 opacity-0 group-data-[collapsible=icon]:pointer-events-auto group-data-[collapsible=icon]:group-hover/logo:opacity-100"
+                      onClick={() => toggleSidebar()}
+                    >
+                      <PanelLeftIcon className="size-4" />
+                    </SidebarMenuButton>
+                  </TooltipTrigger>
+                  <TooltipContent className="hidden md:block" side="right">
+                    Open sidebar
+                  </TooltipContent>
+                </Tooltip>
+              </div>
+              <div className="group-data-[collapsible=icon]:hidden">
+                <SidebarTrigger className="text-sidebar-foreground/60 transition-colors duration-150 hover:text-sidebar-foreground" />
+              </div>
+            </SidebarMenuItem>
+          </SidebarMenu>
+        </SidebarHeader>
+        <SidebarContent>
+          <SidebarGroup className="pt-1">
+            <SidebarGroupContent>
+              <SidebarMenu>
+                <SidebarMenuItem>
+                  <SidebarMenuButton
+                    className="h-8 rounded-lg border border-sidebar-border text-[13px] text-sidebar-foreground/70 transition-colors duration-150 hover:bg-sidebar-accent/50 hover:text-sidebar-foreground"
+                    onClick={() => {
+                      setOpenMobile(false);
+                      router.push("/");
+                    }}
+                    tooltip="New Chat"
+                  >
+                    <PenSquareIcon className="size-4" />
+                    <span className="font-medium">New chat</span>
+                  </SidebarMenuButton>
+                </SidebarMenuItem>
+                {user && (
+                  <SidebarMenuItem>
+                    <SidebarMenuButton
+                      className="rounded-lg text-sidebar-foreground/40 transition-colors duration-150 hover:bg-destructive/10 hover:text-destructive"
+                      onClick={() => setShowDeleteAllDialog(true)}
+                      tooltip="Delete All Chats"
+                    >
+                      <TrashIcon className="size-4" />
+                      <span className="text-[13px]">Delete all</span>
+                    </SidebarMenuButton>
+                  </SidebarMenuItem>
+                )}
+              </SidebarMenu>
+            </SidebarGroupContent>
+          </SidebarGroup>
+          <SidebarHistory user={user} />
+        </SidebarContent>
+        <SidebarFooter className="border-t border-sidebar-border pt-2 pb-3">
+          {user && <SidebarUserNav user={user} />}
+        </SidebarFooter>
+        <SidebarRail />
+      </Sidebar>
+
+      <AlertDialog
+        onOpenChange={setShowDeleteAllDialog}
+        open={showDeleteAllDialog}
+      >
+        <AlertDialogContent>
+          <AlertDialogHeader>
+            <AlertDialogTitle>Delete all chats?</AlertDialogTitle>
+            <AlertDialogDescription>
+              This action cannot be undone. This will permanently delete all
+              your chats and remove them from our servers.
+            </AlertDialogDescription>
+          </AlertDialogHeader>
+          <AlertDialogFooter>
+            <AlertDialogCancel>Cancel</AlertDialogCancel>
+            <AlertDialogAction onClick={handleDeleteAll}>
+              Delete All
+            </AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
+    </>
+  );
+}

components/chat/auth-form.tsx

@@ -0,0 +1,53 @@
+import Form from "next/form";
+
+import { Input } from "../ui/input";
+import { Label } from "../ui/label";
+
+export function AuthForm({
+  action,
+  children,
+  defaultEmail = "",
+}: {
+  action: NonNullable<
+    string | ((formData: FormData) => void | Promise<void>) | undefined
+  >;
+  children: React.ReactNode;
+  defaultEmail?: string;
+}) {
+  return (
+    <Form action={action} className="flex flex-col gap-4">
+      <div className="flex flex-col gap-2">
+        <Label className="font-normal text-muted-foreground" htmlFor="email">
+          Email
+        </Label>
+        <Input
+          autoComplete="email"
+          autoFocus
+          className="h-10 rounded-lg border-border/50 bg-muted/50 text-sm transition-colors focus:border-foreground/20 focus:bg-muted"
+          defaultValue={defaultEmail}
+          id="email"
+          name="email"
+          placeholder="you@someo.ne"
+          required
+          type="email"
+        />
+      </div>
+
+      <div className="flex flex-col gap-2">
+        <Label className="font-normal text-muted-foreground" htmlFor="password">
+          Password
+        </Label>
+        <Input
+          className="h-10 rounded-lg border-border/50 bg-muted/50 text-sm transition-colors focus:border-foreground/20 focus:bg-muted"
+          id="password"
+          name="password"
+          placeholder="&bull;&bull;&bull;&bull;&bull;&bull;&bull;&bull;"
+          required
+          type="password"
+        />
+      </div>
+
+      {children}
+    </Form>
+  );
+}

components/chat/chat-header.tsx

@@ -0,0 +1,76 @@
+"use client";
+
+import { PanelLeftIcon } from "lucide-react";
+import Link from "next/link";
+import { memo } from "react";
+import { Button } from "@/components/ui/button";
+import { useSidebar } from "@/components/ui/sidebar";
+import { VercelIcon } from "./icons";
+import { VisibilitySelector, type VisibilityType } from "./visibility-selector";
+
+function PureChatHeader({
+  chatId,
+  selectedVisibilityType,
+  isReadonly,
+}: {
+  chatId: string;
+  selectedVisibilityType: VisibilityType;
+  isReadonly: boolean;
+}) {
+  const { state, toggleSidebar, isMobile } = useSidebar();
+
+  if (state === "collapsed" && !isMobile) {
+    return null;
+  }
+
+  return (
+    <header className="sticky top-0 flex h-14 items-center gap-2 bg-sidebar px-3">
+      <Button
+        className="md:hidden"
+        onClick={toggleSidebar}
+        size="icon-sm"
+        variant="ghost"
+      >
+        <PanelLeftIcon className="size-4" />
+      </Button>
+
+      <Link
+        className="flex size-8 items-center justify-center rounded-lg md:hidden"
+        href="https://vercel.com/templates/next.js/chatbot"
+        rel="noopener noreferrer"
+        target="_blank"
+      >
+        <VercelIcon size={14} />
+      </Link>
+
+      {!isReadonly && (
+        <VisibilitySelector
+          chatId={chatId}
+          selectedVisibilityType={selectedVisibilityType}
+        />
+      )}
+
+      <Button
+        asChild
+        className="hidden rounded-lg bg-foreground px-4 text-background hover:bg-foreground/90 md:ml-auto md:flex"
+      >
+        <Link
+          href="https://vercel.com/templates/next.js/chatbot"
+          rel="noopener noreferrer"
+          target="_blank"
+        >
+          <VercelIcon size={16} />
+          Deploy with Vercel
+        </Link>
+      </Button>
+    </header>
+  );
+}
+
+export const ChatHeader = memo(PureChatHeader, (prevProps, nextProps) => {
+  return (
+    prevProps.chatId === nextProps.chatId &&
+    prevProps.selectedVisibilityType === nextProps.selectedVisibilityType &&
+    prevProps.isReadonly === nextProps.isReadonly
+  );
+});

components/chat/data-stream-handler.tsx

@@ -0,0 +1,29 @@
+"use client";
+
+import { useEffect } from "react";
+import { useSWRConfig } from "swr";
+import { unstable_serialize } from "swr/infinite";
+import { useDataStream } from "./data-stream-provider";
+import { getChatHistoryPaginationKey } from "./sidebar-history";
+
+export function DataStreamHandler() {
+  const { dataStream, setDataStream } = useDataStream();
+  const { mutate } = useSWRConfig();
+
+  useEffect(() => {
+    if (!dataStream?.length) {
+      return;
+    }
+
+    const newDeltas = dataStream.slice();
+    setDataStream([]);
+
+    for (const delta of newDeltas) {
+      if (delta.type === "data-chat-title") {
+        mutate(unstable_serialize(getChatHistoryPaginationKey));
+      }
+    }
+  }, [dataStream, setDataStream, mutate]);
+
+  return null;
+}

components/chat/data-stream-provider.tsx

@@ -0,0 +1,41 @@
+"use client";
+
+import type { DataUIPart } from "ai";
+import type React from "react";
+import { createContext, useContext, useMemo, useState } from "react";
+import type { CustomUIDataTypes } from "@/lib/types";
+
+type DataStreamContextValue = {
+  dataStream: DataUIPart<CustomUIDataTypes>[];
+  setDataStream: React.Dispatch<
+    React.SetStateAction<DataUIPart<CustomUIDataTypes>[]>
+  >;
+};
+
+const DataStreamContext = createContext<DataStreamContextValue | null>(null);
+
+export function DataStreamProvider({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  const [dataStream, setDataStream] = useState<DataUIPart<CustomUIDataTypes>[]>(
+    []
+  );
+
+  const value = useMemo(() => ({ dataStream, setDataStream }), [dataStream]);
+
+  return (
+    <DataStreamContext.Provider value={value}>
+      {children}
+    </DataStreamContext.Provider>
+  );
+}
+
+export function useDataStream() {
+  const context = useContext(DataStreamContext);
+  if (!context) {
+    throw new Error("useDataStream must be used within a DataStreamProvider");
+  }
+  return context;
+}

components/chat/greeting.tsx

@@ -0,0 +1,24 @@
+import { motion } from "framer-motion";
+
+export const Greeting = () => {
+  return (
+    <div className="flex flex-col items-center px-4" key="overview">
+      <motion.div
+        animate={{ opacity: 1, y: 0 }}
+        className="text-center font-semibold text-2xl tracking-tight text-foreground md:text-3xl"
+        initial={{ opacity: 0, y: 10 }}
+        transition={{ delay: 0.35, duration: 0.5, ease: [0.22, 1, 0.36, 1] }}
+      >
+        What can I help with?
+      </motion.div>
+      <motion.div
+        animate={{ opacity: 1, y: 0 }}
+        className="mt-3 text-center text-muted-foreground/80 text-sm"
+        initial={{ opacity: 0, y: 10 }}
+        transition={{ delay: 0.5, duration: 0.5, ease: [0.22, 1, 0.36, 1] }}
+      >
+        Ask a question, write code, or explore ideas.
+      </motion.div>
+    </div>
+  );
+};

components/chat/message-actions.tsx

@@ -0,0 +1,207 @@
+import equal from "fast-deep-equal";
+import { memo } from "react";
+import { toast } from "sonner";
+import { useSWRConfig } from "swr";
+import { useCopyToClipboard } from "usehooks-ts";
+import type { Vote } from "@/lib/db/schema";
+import type { ChatMessage } from "@/lib/types";
+import {
+  MessageAction as Action,
+  MessageActions as Actions,
+} from "../ai-elements/message";
+import { CopyIcon, PencilEditIcon, ThumbDownIcon, ThumbUpIcon } from "./icons";
+
+export function PureMessageActions({
+  chatId,
+  message,
+  vote,
+  isLoading,
+  onEdit,
+}: {
+  chatId: string;
+  message: ChatMessage;
+  vote: Vote | undefined;
+  isLoading: boolean;
+  onEdit?: () => void;
+}) {
+  const { mutate } = useSWRConfig();
+  const [_, copyToClipboard] = useCopyToClipboard();
+
+  if (isLoading) {
+    return null;
+  }
+
+  const textFromParts = message.parts
+    ?.filter((part) => part.type === "text")
+    .map((part) => part.text)
+    .join("\n")
+    .trim();
+
+  const handleCopy = async () => {
+    if (!textFromParts) {
+      toast.error("There's no text to copy!");
+      return;
+    }
+
+    await copyToClipboard(textFromParts);
+    toast.success("Copied to clipboard!");
+  };
+
+  if (message.role === "user") {
+    return (
+      <Actions className="-mr-0.5 justify-end opacity-0 transition-opacity duration-150 group-hover/message:opacity-100">
+        <div className="flex items-center gap-0.5">
+          {onEdit && (
+            <Action
+              className="size-7 text-muted-foreground/50 hover:text-foreground"
+              data-testid="message-edit-button"
+              onClick={onEdit}
+              tooltip="Edit"
+            >
+              <PencilEditIcon />
+            </Action>
+          )}
+          <Action
+            className="size-7 text-muted-foreground/50 hover:text-foreground"
+            onClick={handleCopy}
+            tooltip="Copy"
+          >
+            <CopyIcon />
+          </Action>
+        </div>
+      </Actions>
+    );
+  }
+
+  return (
+    <Actions className="-ml-0.5 opacity-0 transition-opacity duration-150 group-hover/message:opacity-100">
+      <Action
+        className="text-muted-foreground/50 hover:text-foreground"
+        onClick={handleCopy}
+        tooltip="Copy"
+      >
+        <CopyIcon />
+      </Action>
+
+      <Action
+        className="text-muted-foreground/50 hover:text-foreground"
+        data-testid="message-upvote"
+        disabled={vote?.isUpvoted}
+        onClick={() => {
+          const upvote = fetch(
+            `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/vote`,
+            {
+              method: "PATCH",
+              body: JSON.stringify({
+                chatId,
+                messageId: message.id,
+                type: "up",
+              }),
+            }
+          );
+
+          toast.promise(upvote, {
+            loading: "Upvoting Response...",
+            success: () => {
+              mutate<Vote[]>(
+                `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/vote?chatId=${chatId}`,
+                (currentVotes) => {
+                  if (!currentVotes) {
+                    return [];
+                  }
+
+                  const votesWithoutCurrent = currentVotes.filter(
+                    (currentVote) => currentVote.messageId !== message.id
+                  );
+
+                  return [
+                    ...votesWithoutCurrent,
+                    {
+                      chatId,
+                      messageId: message.id,
+                      isUpvoted: true,
+                    },
+                  ];
+                },
+                { revalidate: false }
+              );
+
+              return "Upvoted Response!";
+            },
+            error: "Failed to upvote response.",
+          });
+        }}
+        tooltip="Upvote Response"
+      >
+        <ThumbUpIcon />
+      </Action>
+
+      <Action
+        className="text-muted-foreground/50 hover:text-foreground"
+        data-testid="message-downvote"
+        disabled={vote && !vote.isUpvoted}
+        onClick={() => {
+          const downvote = fetch(
+            `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/vote`,
+            {
+              method: "PATCH",
+              body: JSON.stringify({
+                chatId,
+                messageId: message.id,
+                type: "down",
+              }),
+            }
+          );
+
+          toast.promise(downvote, {
+            loading: "Downvoting Response...",
+            success: () => {
+              mutate<Vote[]>(
+                `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/vote?chatId=${chatId}`,
+                (currentVotes) => {
+                  if (!currentVotes) {
+                    return [];
+                  }
+
+                  const votesWithoutCurrent = currentVotes.filter(
+                    (currentVote) => currentVote.messageId !== message.id
+                  );
+
+                  return [
+                    ...votesWithoutCurrent,
+                    {
+                      chatId,
+                      messageId: message.id,
+                      isUpvoted: false,
+                    },
+                  ];
+                },
+                { revalidate: false }
+              );
+
+              return "Downvoted Response!";
+            },
+            error: "Failed to downvote response.",
+          });
+        }}
+        tooltip="Downvote Response"
+      >
+        <ThumbDownIcon />
+      </Action>
+    </Actions>
+  );
+}
+
+export const MessageActions = memo(
+  PureMessageActions,
+  (prevProps, nextProps) => {
+    if (!equal(prevProps.vote, nextProps.vote)) {
+      return false;
+    }
+    if (prevProps.isLoading !== nextProps.isLoading) {
+      return false;
+    }
+
+    return true;
+  }
+);

components/chat/message-editor.tsx

@@ -0,0 +1,33 @@
+"use client";
+
+import type { UseChatHelpers } from "@ai-sdk/react";
+import { deleteTrailingMessages } from "@/app/(chat)/actions";
+import type { ChatMessage } from "@/lib/types";
+
+export async function submitEditedMessage({
+  message,
+  text,
+  setMessages,
+  regenerate,
+}: {
+  message: ChatMessage;
+  text: string;
+  setMessages: UseChatHelpers<ChatMessage>["setMessages"];
+  regenerate: UseChatHelpers<ChatMessage>["regenerate"];
+}) {
+  await deleteTrailingMessages({ id: message.id });
+
+  setMessages((messages) => {
+    const index = messages.findIndex((m) => m.id === message.id);
+    if (index === -1) {
+      return messages;
+    }
+
+    return [
+      ...messages.slice(0, index),
+      { ...message, parts: [{ type: "text" as const, text }] },
+    ];
+  });
+
+  regenerate();
+}

components/chat/message-reasoning.tsx

@@ -0,0 +1,37 @@
+"use client";
+
+import { useEffect, useState } from "react";
+import {
+  Reasoning,
+  ReasoningContent,
+  ReasoningTrigger,
+} from "../ai-elements/reasoning";
+
+type MessageReasoningProps = {
+  isLoading: boolean;
+  reasoning: string;
+};
+
+export function MessageReasoning({
+  isLoading,
+  reasoning,
+}: MessageReasoningProps) {
+  const [hasBeenStreaming, setHasBeenStreaming] = useState(isLoading);
+
+  useEffect(() => {
+    if (isLoading) {
+      setHasBeenStreaming(true);
+    }
+  }, [isLoading]);
+
+  return (
+    <Reasoning
+      data-testid="message-reasoning"
+      defaultOpen={hasBeenStreaming}
+      isStreaming={isLoading}
+    >
+      <ReasoningTrigger />
+      <ReasoningContent>{reasoning}</ReasoningContent>
+    </Reasoning>
+  );
+}

components/chat/message.tsx

@@ -0,0 +1,301 @@
+"use client";
+import type { UseChatHelpers } from "@ai-sdk/react";
+import type { Vote } from "@/lib/db/schema";
+import type { ChatMessage } from "@/lib/types";
+import { cn, sanitizeText } from "@/lib/utils";
+import { MessageContent, MessageResponse } from "../ai-elements/message";
+import { Shimmer } from "../ai-elements/shimmer";
+import {
+  Tool,
+  ToolContent,
+  ToolHeader,
+  ToolInput,
+} from "../ai-elements/tool";
+import { useDataStream } from "./data-stream-provider";
+import { SparklesIcon } from "./icons";
+import { MessageActions } from "./message-actions";
+import { MessageReasoning } from "./message-reasoning";
+import { PreviewAttachment } from "./preview-attachment";
+import { Weather } from "./weather";
+
+const PurePreviewMessage = ({
+  addToolApprovalResponse,
+  chatId,
+  message,
+  vote,
+  isLoading,
+  setMessages: _setMessages,
+  regenerate: _regenerate,
+  isReadonly,
+  requiresScrollPadding: _requiresScrollPadding,
+  onEdit,
+}: {
+  addToolApprovalResponse: UseChatHelpers<ChatMessage>["addToolApprovalResponse"];
+  chatId: string;
+  message: ChatMessage;
+  vote: Vote | undefined;
+  isLoading: boolean;
+  setMessages: UseChatHelpers<ChatMessage>["setMessages"];
+  regenerate: UseChatHelpers<ChatMessage>["regenerate"];
+  isReadonly: boolean;
+  requiresScrollPadding: boolean;
+  onEdit?: (message: ChatMessage) => void;
+}) => {
+  const attachmentsFromMessage = message.parts.filter(
+    (part) => part.type === "file"
+  );
+
+  useDataStream();
+
+  const isUser = message.role === "user";
+  const isAssistant = message.role === "assistant";
+
+  const hasAnyContent = message.parts?.some(
+    (part) =>
+      (part.type === "text" && part.text?.trim().length > 0) ||
+      (part.type === "reasoning" &&
+        "text" in part &&
+        part.text?.trim().length > 0) ||
+      part.type.startsWith("tool-")
+  );
+  const isThinking = isAssistant && isLoading && !hasAnyContent;
+
+  const attachments = attachmentsFromMessage.length > 0 && (
+    <div
+      className="flex flex-row justify-end gap-2"
+      data-testid={"message-attachments"}
+    >
+      {attachmentsFromMessage.map((attachment) => (
+        <PreviewAttachment
+          attachment={{
+            name: attachment.filename ?? "file",
+            contentType: attachment.mediaType,
+            url: attachment.url,
+          }}
+          key={attachment.url}
+        />
+      ))}
+    </div>
+  );
+
+  const mergedReasoning = message.parts?.reduce(
+    (acc, part) => {
+      if (part.type === "reasoning" && part.text?.trim().length > 0) {
+        return {
+          text: acc.text ? `${acc.text}\n\n${part.text}` : part.text,
+          isStreaming: "state" in part ? part.state === "streaming" : false,
+          rendered: false,
+        };
+      }
+      return acc;
+    },
+    { text: "", isStreaming: false, rendered: false }
+  ) ?? { text: "", isStreaming: false, rendered: false };
+
+  const parts = message.parts?.map((part, index) => {
+    const { type } = part;
+    const key = `message-${message.id}-part-${index}`;
+
+    if (type === "reasoning") {
+      if (!mergedReasoning.rendered && mergedReasoning.text) {
+        mergedReasoning.rendered = true;
+        return (
+          <MessageReasoning
+            isLoading={isLoading || mergedReasoning.isStreaming}
+            key={key}
+            reasoning={mergedReasoning.text}
+          />
+        );
+      }
+      return null;
+    }
+
+    if (type === "text") {
+      return (
+        <MessageContent
+          className={cn("text-[13px] leading-[1.65]", {
+            "w-fit max-w-[min(80%,56ch)] overflow-hidden break-words rounded-2xl rounded-br-lg border border-border/30 bg-gradient-to-br from-secondary to-muted px-3.5 py-2 shadow-[var(--shadow-card)]":
+              message.role === "user",
+          })}
+          data-testid="message-content"
+          key={key}
+        >
+          <MessageResponse>{sanitizeText(part.text)}</MessageResponse>
+        </MessageContent>
+      );
+    }
+
+    if (type === "tool-getWeather") {
+      const { toolCallId, state } = part;
+      const approvalId = (part as { approval?: { id: string } }).approval?.id;
+      const isDenied =
+        state === "output-denied" ||
+        (state === "approval-responded" &&
+          (part as { approval?: { approved?: boolean } }).approval?.approved ===
+            false);
+      const widthClass = "w-[min(100%,450px)]";
+
+      if (state === "output-available") {
+        return (
+          <div className={widthClass} key={toolCallId}>
+            <Weather weatherAtLocation={part.output} />
+          </div>
+        );
+      }
+
+      if (isDenied) {
+        return (
+          <div className={widthClass} key={toolCallId}>
+            <Tool className="w-full" defaultOpen={true}>
+              <ToolHeader state="output-denied" type="tool-getWeather" />
+              <ToolContent>
+                <div className="px-4 py-3 text-muted-foreground text-sm">
+                  Weather lookup was denied.
+                </div>
+              </ToolContent>
+            </Tool>
+          </div>
+        );
+      }
+
+      if (state === "approval-responded") {
+        return (
+          <div className={widthClass} key={toolCallId}>
+            <Tool className="w-full" defaultOpen={true}>
+              <ToolHeader state={state} type="tool-getWeather" />
+              <ToolContent>
+                <ToolInput input={part.input} />
+              </ToolContent>
+            </Tool>
+          </div>
+        );
+      }
+
+      return (
+        <div className={widthClass} key={toolCallId}>
+          <Tool className="w-full" defaultOpen={true}>
+            <ToolHeader state={state} type="tool-getWeather" />
+            <ToolContent>
+              {(state === "input-available" ||
+                state === "approval-requested") && (
+                <ToolInput input={part.input} />
+              )}
+              {state === "approval-requested" && approvalId && (
+                <div className="flex items-center justify-end gap-2 border-t px-4 py-3">
+                  <button
+                    className="rounded-md px-3 py-1.5 text-muted-foreground text-sm transition-colors hover:bg-muted hover:text-foreground"
+                    onClick={() => {
+                      addToolApprovalResponse({
+                        id: approvalId,
+                        approved: false,
+                        reason: "User denied weather lookup",
+                      });
+                    }}
+                    type="button"
+                  >
+                    Deny
+                  </button>
+                  <button
+                    className="rounded-md bg-primary px-3 py-1.5 text-primary-foreground text-sm transition-colors hover:bg-primary/90"
+                    onClick={() => {
+                      addToolApprovalResponse({
+                        id: approvalId,
+                        approved: true,
+                      });
+                    }}
+                    type="button"
+                  >
+                    Allow
+                  </button>
+                </div>
+              )}
+            </ToolContent>
+          </Tool>
+        </div>
+      );
+    }
+
+    return null;
+  });
+
+  const actions = !isReadonly && (
+    <MessageActions
+      chatId={chatId}
+      isLoading={isLoading}
+      key={`action-${message.id}`}
+      message={message}
+      onEdit={onEdit ? () => onEdit(message) : undefined}
+      vote={vote}
+    />
+  );
+
+  const content = isThinking ? (
+    <div className="flex h-[calc(13px*1.65)] items-center text-[13px] leading-[1.65]">
+      <Shimmer className="font-medium" duration={1}>
+        Thinking...
+      </Shimmer>
+    </div>
+  ) : (
+    <>
+      {attachments}
+      {parts}
+      {actions}
+    </>
+  );
+
+  return (
+    <div
+      className={cn(
+        "group/message w-full",
+        !isAssistant && "animate-[fade-up_0.25s_cubic-bezier(0.22,1,0.36,1)]"
+      )}
+      data-role={message.role}
+      data-testid={`message-${message.role}`}
+    >
+      <div
+        className={cn(
+          isUser ? "flex flex-col items-end gap-2" : "flex items-start gap-3"
+        )}
+      >
+        {isAssistant && (
+          <div className="flex h-[calc(13px*1.65)] shrink-0 items-center">
+            <div className="flex size-7 items-center justify-center rounded-lg bg-muted/60 text-muted-foreground ring-1 ring-border/50">
+              <SparklesIcon size={13} />
+            </div>
+          </div>
+        )}
+        {isAssistant ? (
+          <div className="flex min-w-0 flex-1 flex-col gap-2">{content}</div>
+        ) : (
+          content
+        )}
+      </div>
+    </div>
+  );
+};
+
+export const PreviewMessage = PurePreviewMessage;
+
+export const ThinkingMessage = () => {
+  return (
+    <div
+      className="group/message w-full"
+      data-role="assistant"
+      data-testid="message-assistant-loading"
+    >
+      <div className="flex items-start gap-3">
+        <div className="flex h-[calc(13px*1.65)] shrink-0 items-center">
+          <div className="flex size-7 items-center justify-center rounded-lg bg-muted/60 text-muted-foreground ring-1 ring-border/50">
+            <SparklesIcon size={13} />
+          </div>
+        </div>
+
+        <div className="flex h-[calc(13px*1.65)] items-center text-[13px] leading-[1.65]">
+          <Shimmer className="font-medium" duration={1}>
+            Thinking...
+          </Shimmer>
+        </div>
+      </div>
+    </div>
+  );
+};

components/chat/messages.tsx

@@ -0,0 +1,126 @@
+import type { UseChatHelpers } from "@ai-sdk/react";
+import { ArrowDownIcon } from "lucide-react";
+import { useEffect, useRef } from "react";
+import { useMessages } from "@/hooks/use-messages";
+import type { Vote } from "@/lib/db/schema";
+import type { ChatMessage } from "@/lib/types";
+import { cn } from "@/lib/utils";
+import { useDataStream } from "./data-stream-provider";
+import { Greeting } from "./greeting";
+import { PreviewMessage, ThinkingMessage } from "./message";
+
+type MessagesProps = {
+  addToolApprovalResponse: UseChatHelpers<ChatMessage>["addToolApprovalResponse"];
+  chatId: string;
+  status: UseChatHelpers<ChatMessage>["status"];
+  votes: Vote[] | undefined;
+  messages: ChatMessage[];
+  setMessages: UseChatHelpers<ChatMessage>["setMessages"];
+  regenerate: UseChatHelpers<ChatMessage>["regenerate"];
+  isReadonly: boolean;
+  isLoading?: boolean;
+  selectedModelId: string;
+  onEditMessage?: (message: ChatMessage) => void;
+};
+
+function PureMessages({
+  addToolApprovalResponse,
+  chatId,
+  status,
+  votes,
+  messages,
+  setMessages,
+  regenerate,
+  isReadonly,
+  isLoading,
+  selectedModelId: _selectedModelId,
+  onEditMessage,
+}: MessagesProps) {
+  const {
+    containerRef: messagesContainerRef,
+    endRef: messagesEndRef,
+    isAtBottom,
+    scrollToBottom,
+    hasSentMessage,
+    reset,
+  } = useMessages({
+    status,
+  });
+
+  useDataStream();
+
+  const prevChatIdRef = useRef(chatId);
+  useEffect(() => {
+    if (prevChatIdRef.current !== chatId) {
+      prevChatIdRef.current = chatId;
+      reset();
+    }
+  }, [chatId, reset]);
+
+  return (
+    <div className="relative flex-1 bg-background">
+      {messages.length === 0 && !isLoading && (
+        <div className="pointer-events-none absolute inset-0 z-10 flex items-center justify-center">
+          <Greeting />
+        </div>
+      )}
+      <div
+        className={cn(
+          "absolute inset-0 touch-pan-y overflow-y-auto",
+          messages.length > 0 ? "bg-background" : "bg-transparent"
+        )}
+        ref={messagesContainerRef}
+      >
+        <div className="mx-auto flex min-h-full min-w-0 max-w-4xl flex-col gap-5 px-2 py-6 md:gap-7 md:px-4">
+          {messages.map((message, index) => (
+            <PreviewMessage
+              addToolApprovalResponse={addToolApprovalResponse}
+              chatId={chatId}
+              isLoading={
+                status === "streaming" && messages.length - 1 === index
+              }
+              isReadonly={isReadonly}
+              key={message.id}
+              message={message}
+              onEdit={onEditMessage}
+              regenerate={regenerate}
+              requiresScrollPadding={
+                hasSentMessage && index === messages.length - 1
+              }
+              setMessages={setMessages}
+              vote={
+                votes
+                  ? votes.find((vote) => vote.messageId === message.id)
+                  : undefined
+              }
+            />
+          ))}
+
+          {status === "submitted" && messages.at(-1)?.role !== "assistant" && (
+            <ThinkingMessage />
+          )}
+
+          <div
+            className="min-h-[24px] min-w-[24px] shrink-0"
+            ref={messagesEndRef}
+          />
+        </div>
+      </div>
+
+      <button
+        aria-label="Scroll to bottom"
+        className={`absolute bottom-4 left-1/2 z-10 flex -translate-x-1/2 items-center rounded-full border border-border/50 bg-card/90 px-3.5 shadow-[var(--shadow-float)] backdrop-blur-lg transition-all duration-200 h-7 text-[10px] ${
+          isAtBottom
+            ? "pointer-events-none scale-90 opacity-0"
+            : "pointer-events-auto scale-100 opacity-100"
+        }`}
+        onClick={() => scrollToBottom("smooth")}
+        type="button"
+      >
+        <ArrowDownIcon className="size-3 text-muted-foreground" />
+      </button>
+    </div>
+  );
+}
+
+export const Messages = PureMessages;

components/chat/multimodal-input.tsx

@@ -0,0 +1,816 @@
+"use client";
+
+import type { UseChatHelpers } from "@ai-sdk/react";
+import type { UIMessage } from "ai";
+import equal from "fast-deep-equal";
+import {
+  ArrowUpIcon,
+  BrainIcon,
+  EyeIcon,
+  LockIcon,
+  WrenchIcon,
+} from "lucide-react";
+import { useRouter } from "next/navigation";
+import { useTheme } from "next-themes";
+import {
+  type ChangeEvent,
+  type Dispatch,
+  memo,
+  type SetStateAction,
+  useCallback,
+  useEffect,
+  useRef,
+  useState,
+} from "react";
+import { toast } from "sonner";
+import useSWR from "swr";
+import { useLocalStorage, useWindowSize } from "usehooks-ts";
+import {
+  ModelSelector,
+  ModelSelectorContent,
+  ModelSelectorGroup,
+  ModelSelectorInput,
+  ModelSelectorItem,
+  ModelSelectorList,
+  ModelSelectorLogo,
+  ModelSelectorName,
+  ModelSelectorTrigger,
+} from "@/components/ai-elements/model-selector";
+import {
+  type ChatModel,
+  chatModels,
+  DEFAULT_CHAT_MODEL,
+  type ModelCapabilities,
+} from "@/lib/ai/models";
+import type { Attachment, ChatMessage } from "@/lib/types";
+import { cn } from "@/lib/utils";
+import {
+  PromptInput,
+  PromptInputFooter,
+  PromptInputSubmit,
+  PromptInputTextarea,
+  PromptInputTools,
+} from "../ai-elements/prompt-input";
+import { Button } from "../ui/button";
+import { PaperclipIcon, StopIcon } from "./icons";
+import { PreviewAttachment } from "./preview-attachment";
+import {
+  type SlashCommand,
+  SlashCommandMenu,
+  slashCommands,
+} from "./slash-commands";
+import { SuggestedActions } from "./suggested-actions";
+import type { VisibilityType } from "./visibility-selector";
+
+function setCookie(name: string, value: string) {
+  const maxAge = 60 * 60 * 24 * 365;
+  // biome-ignore lint/suspicious/noDocumentCookie: needed for client-side cookie setting
+  document.cookie = `${name}=${encodeURIComponent(value)}; path=/; max-age=${maxAge}`;
+}
+
+function PureMultimodalInput({
+  chatId,
+  input,
+  setInput,
+  status,
+  stop,
+  attachments,
+  setAttachments,
+  messages,
+  setMessages,
+  sendMessage,
+  className,
+  selectedVisibilityType,
+  selectedModelId,
+  onModelChange,
+  editingMessage,
+  onCancelEdit,
+  isLoading,
+}: {
+  chatId: string;
+  input: string;
+  setInput: Dispatch<SetStateAction<string>>;
+  status: UseChatHelpers<ChatMessage>["status"];
+  stop: () => void;
+  attachments: Attachment[];
+  setAttachments: Dispatch<SetStateAction<Attachment[]>>;
+  messages: UIMessage[];
+  setMessages: UseChatHelpers<ChatMessage>["setMessages"];
+  sendMessage:
+    | UseChatHelpers<ChatMessage>["sendMessage"]
+    | (() => Promise<void>);
+  className?: string;
+  selectedVisibilityType: VisibilityType;
+  selectedModelId: string;
+  onModelChange?: (modelId: string) => void;
+  editingMessage?: ChatMessage | null;
+  onCancelEdit?: () => void;
+  isLoading?: boolean;
+}) {
+  const router = useRouter();
+  const { setTheme, resolvedTheme } = useTheme();
+  const textareaRef = useRef<HTMLTextAreaElement>(null);
+  const { width } = useWindowSize();
+  const hasAutoFocused = useRef(false);
+  useEffect(() => {
+    if (!hasAutoFocused.current && width) {
+      const timer = setTimeout(() => {
+        textareaRef.current?.focus();
+        hasAutoFocused.current = true;
+      }, 100);
+      return () => clearTimeout(timer);
+    }
+  }, [width]);
+
+  const [localStorageInput, setLocalStorageInput] = useLocalStorage(
+    "input",
+    ""
+  );
+
+  useEffect(() => {
+    if (textareaRef.current) {
+      const domValue = textareaRef.current.value;
+      const finalValue = domValue || localStorageInput || "";
+      setInput(finalValue);
+    }
+  }, [localStorageInput, setInput]);
+
+  useEffect(() => {
+    setLocalStorageInput(input);
+  }, [input, setLocalStorageInput]);
+
+  const handleInput = (event: React.ChangeEvent<HTMLTextAreaElement>) => {
+    const val = event.target.value;
+    setInput(val);
+
+    if (val.startsWith("/") && !val.includes(" ")) {
+      setSlashOpen(true);
+      setSlashQuery(val.slice(1));
+      setSlashIndex(0);
+    } else {
+      setSlashOpen(false);
+    }
+  };
+
+  const handleSlashSelect = (cmd: SlashCommand) => {
+    setSlashOpen(false);
+    setInput("");
+    switch (cmd.action) {
+      case "new":
+        router.push("/");
+        break;
+      case "clear":
+        setMessages(() => []);
+        break;
+      case "rename":
+        toast("Rename is available from the sidebar chat menu.");
+        break;
+      case "model": {
+        const modelBtn = document.querySelector<HTMLButtonElement>(
+          "[data-testid='model-selector']"
+        );
+        modelBtn?.click();
+        break;
+      }
+      case "theme":
+        setTheme(resolvedTheme === "dark" ? "light" : "dark");
+        break;
+      case "delete":
+        toast("Delete this chat?", {
+          action: {
+            label: "Delete",
+            onClick: () => {
+              fetch(
+                `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/chat?id=${chatId}`,
+                { method: "DELETE" }
+              );
+              router.push("/");
+              toast.success("Chat deleted");
+            },
+          },
+        });
+        break;
+      case "purge":
+        toast("Delete all chats?", {
+          action: {
+            label: "Delete all",
+            onClick: () => {
+              fetch(`${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/history`, {
+                method: "DELETE",
+              });
+              router.push("/");
+              toast.success("All chats deleted");
+            },
+          },
+        });
+        break;
+      default:
+        break;
+    }
+  };
+
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const [uploadQueue, setUploadQueue] = useState<string[]>([]);
+  const [slashOpen, setSlashOpen] = useState(false);
+  const [slashQuery, setSlashQuery] = useState("");
+  const [slashIndex, setSlashIndex] = useState(0);
+
+  const submitForm = useCallback(() => {
+    window.history.pushState(
+      {},
+      "",
+      `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/chat/${chatId}`
+    );
+
+    sendMessage({
+      role: "user",
+      parts: [
+        ...attachments.map((attachment) => ({
+          type: "file" as const,
+          url: attachment.url,
+          name: attachment.name,
+          mediaType: attachment.contentType,
+        })),
+        {
+          type: "text",
+          text: input,
+        },
+      ],
+    });
+
+    setAttachments([]);
+    setLocalStorageInput("");
+    setInput("");
+
+    if (width && width > 768) {
+      textareaRef.current?.focus();
+    }
+  }, [
+    input,
+    setInput,
+    attachments,
+    sendMessage,
+    setAttachments,
+    setLocalStorageInput,
+    width,
+    chatId,
+  ]);
+
+  const uploadFile = useCallback(async (file: File) => {
+    const formData = new FormData();
+    formData.append("file", file);
+
+    try {
+      const response = await fetch(
+        `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/files/upload`,
+        {
+          method: "POST",
+          body: formData,
+        }
+      );
+
+      if (response.ok) {
+        const data = await response.json();
+        const { url, pathname, contentType } = data;
+
+        return {
+          url,
+          name: pathname,
+          contentType,
+        };
+      }
+      const { error } = await response.json();
+      toast.error(error);
+    } catch (_error) {
+      toast.error("Failed to upload file, please try again!");
+    }
+  }, []);
+
+  const handleFileChange = useCallback(
+    async (event: ChangeEvent<HTMLInputElement>) => {
+      const files = Array.from(event.target.files || []);
+
+      setUploadQueue(files.map((file) => file.name));
+
+      try {
+        const uploadPromises = files.map((file) => uploadFile(file));
+        const uploadedAttachments = await Promise.all(uploadPromises);
+        const successfullyUploadedAttachments = uploadedAttachments.filter(
+          (attachment) => attachment !== undefined
+        );
+
+        setAttachments((currentAttachments) => [
+          ...currentAttachments,
+          ...successfullyUploadedAttachments,
+        ]);
+      } catch (_error) {
+        toast.error("Failed to upload files");
+      } finally {
+        setUploadQueue([]);
+      }
+    },
+    [setAttachments, uploadFile]
+  );
+
+  const handlePaste = useCallback(
+    async (event: ClipboardEvent) => {
+      const items = event.clipboardData?.items;
+      if (!items) {
+        return;
+      }
+
+      const imageItems = Array.from(items).filter((item) =>
+        item.type.startsWith("image/")
+      );
+
+      if (imageItems.length === 0) {
+        return;
+      }
+
+      event.preventDefault();
+
+      setUploadQueue((prev) => [...prev, "Pasted image"]);
+
+      try {
+        const uploadPromises = imageItems
+          .map((item) => item.getAsFile())
+          .filter((file): file is File => file !== null)
+          .map((file) => uploadFile(file));
+
+        const uploadedAttachments = await Promise.all(uploadPromises);
+        const successfullyUploadedAttachments = uploadedAttachments.filter(
+          (attachment) =>
+            attachment !== undefined &&
+            attachment.url !== undefined &&
+            attachment.contentType !== undefined
+        );
+
+        setAttachments((curr) => [
+          ...curr,
+          ...(successfullyUploadedAttachments as Attachment[]),
+        ]);
+      } catch (_error) {
+        toast.error("Failed to upload pasted image(s)");
+      } finally {
+        setUploadQueue([]);
+      }
+    },
+    [setAttachments, uploadFile]
+  );
+
+  useEffect(() => {
+    const textarea = textareaRef.current;
+    if (!textarea) {
+      return;
+    }
+
+    textarea.addEventListener("paste", handlePaste);
+    return () => textarea.removeEventListener("paste", handlePaste);
+  }, [handlePaste]);
+
+  return (
+    <div className={cn("relative flex w-full flex-col gap-4", className)}>
+      {editingMessage && onCancelEdit && (
+        <div className="flex items-center gap-2 text-[12px] text-muted-foreground">
+          <span>Editing message</span>
+          <button
+            className="rounded px-1.5 py-0.5 text-muted-foreground/50 transition-colors hover:bg-muted hover:text-foreground"
+            onMouseDown={(e) => {
+              e.preventDefault();
+              onCancelEdit();
+            }}
+            type="button"
+          >
+            Cancel
+          </button>
+        </div>
+      )}
+
+      {!editingMessage &&
+        !isLoading &&
+        messages.length === 0 &&
+        attachments.length === 0 &&
+        uploadQueue.length === 0 && (
+          <SuggestedActions
+            chatId={chatId}
+            selectedVisibilityType={selectedVisibilityType}
+            sendMessage={sendMessage}
+          />
+        )}
+
+      <input
+        className="pointer-events-none fixed -top-4 -left-4 size-0.5 opacity-0"
+        multiple
+        onChange={handleFileChange}
+        ref={fileInputRef}
+        tabIndex={-1}
+        type="file"
+      />
+
+      <div className="relative">
+        {slashOpen && (
+          <SlashCommandMenu
+            onClose={() => setSlashOpen(false)}
+            onSelect={handleSlashSelect}
+            query={slashQuery}
+            selectedIndex={slashIndex}
+          />
+        )}
+      </div>
+
+      <PromptInput
+        className="[&>div]:rounded-2xl [&>div]:border [&>div]:border-border/30 [&>div]:bg-card/70 [&>div]:shadow-[var(--shadow-composer)] [&>div]:transition-shadow [&>div]:duration-300 [&>div]:focus-within:shadow-[var(--shadow-composer-focus)]"
+        onSubmit={() => {
+          if (input.startsWith("/")) {
+            const query = input.slice(1).trim();
+            const cmd = slashCommands.find((c) => c.name === query);
+            if (cmd) {
+              handleSlashSelect(cmd);
+            }
+            return;
+          }
+          if (!input.trim() && attachments.length === 0) {
+            return;
+          }
+          if (status === "ready" || status === "error") {
+            submitForm();
+          } else {
+            toast.error("Please wait for the model to finish its response!");
+          }
+        }}
+      >
+        {(attachments.length > 0 || uploadQueue.length > 0) && (
+          <div
+            className="flex w-full self-start flex-row gap-2 overflow-x-auto px-3 pt-3 no-scrollbar"
+            data-testid="attachments-preview"
+          >
+            {attachments.map((attachment) => (
+              <PreviewAttachment
+                attachment={attachment}
+                key={attachment.url}
+                onRemove={() => {
+                  setAttachments((currentAttachments) =>
+                    currentAttachments.filter((a) => a.url !== attachment.url)
+                  );
+                  if (fileInputRef.current) {
+                    fileInputRef.current.value = "";
+                  }
+                }}
+              />
+            ))}
+
+            {uploadQueue.map((filename) => (
+              <PreviewAttachment
+                attachment={{
+                  url: "",
+                  name: filename,
+                  contentType: "",
+                }}
+                isUploading={true}
+                key={filename}
+              />
+            ))}
+          </div>
+        )}
+        <PromptInputTextarea
+          className="min-h-24 text-[13px] leading-relaxed px-4 pt-3.5 pb-1.5 placeholder:text-muted-foreground/35"
+          data-testid="multimodal-input"
+          onChange={handleInput}
+          onKeyDown={(e) => {
+            if (slashOpen) {
+              const filtered = slashCommands.filter((cmd) =>
+                cmd.name.startsWith(slashQuery.toLowerCase())
+              );
+              if (e.key === "ArrowDown") {
+                e.preventDefault();
+                setSlashIndex((i) => Math.min(i + 1, filtered.length - 1));
+                return;
+              }
+              if (e.key === "ArrowUp") {
+                e.preventDefault();
+                setSlashIndex((i) => Math.max(i - 1, 0));
+                return;
+              }
+              if (e.key === "Enter" || e.key === "Tab") {
+                e.preventDefault();
+                if (filtered[slashIndex]) {
+                  handleSlashSelect(filtered[slashIndex]);
+                }
+                return;
+              }
+              if (e.key === "Escape") {
+                e.preventDefault();
+                setSlashOpen(false);
+                return;
+              }
+            }
+            if (e.key === "Escape" && editingMessage && onCancelEdit) {
+              e.preventDefault();
+              onCancelEdit();
+            }
+          }}
+          placeholder={
+            editingMessage ? "Edit your message..." : "Ask anything..."
+          }
+          ref={textareaRef}
+          value={input}
+        />
+        <PromptInputFooter className="px-3 pb-3">
+          <PromptInputTools>
+            <AttachmentsButton
+              fileInputRef={fileInputRef}
+              selectedModelId={selectedModelId}
+              status={status}
+            />
+            <ModelSelectorCompact
+              onModelChange={onModelChange}
+              selectedModelId={selectedModelId}
+            />
+          </PromptInputTools>
+
+          {status === "submitted" ? (
+            <StopButton setMessages={setMessages} stop={stop} />
+          ) : (
+            <PromptInputSubmit
+              className={cn(
+                "h-7 w-7 rounded-xl transition-all duration-200",
+                input.trim()
+                  ? "bg-foreground text-background hover:opacity-85 active:scale-95"
+                  : "bg-muted text-muted-foreground/25 cursor-not-allowed"
+              )}
+              data-testid="send-button"
+              disabled={!input.trim() || uploadQueue.length > 0}
+              status={status}
+              variant="secondary"
+            >
+              <ArrowUpIcon className="size-4" />
+            </PromptInputSubmit>
+          )}
+        </PromptInputFooter>
+      </PromptInput>
+    </div>
+  );
+}
+
+export const MultimodalInput = memo(
+  PureMultimodalInput,
+  (prevProps, nextProps) => {
+    if (prevProps.input !== nextProps.input) {
+      return false;
+    }
+    if (prevProps.status !== nextProps.status) {
+      return false;
+    }
+    if (!equal(prevProps.attachments, nextProps.attachments)) {
+      return false;
+    }
+    if (prevProps.selectedVisibilityType !== nextProps.selectedVisibilityType) {
+      return false;
+    }
+    if (prevProps.selectedModelId !== nextProps.selectedModelId) {
+      return false;
+    }
+    if (prevProps.editingMessage !== nextProps.editingMessage) {
+      return false;
+    }
+    if (prevProps.isLoading !== nextProps.isLoading) {
+      return false;
+    }
+    if (prevProps.messages.length !== nextProps.messages.length) {
+      return false;
+    }
+
+    return true;
+  }
+);
+
+function PureAttachmentsButton({
+  fileInputRef,
+  status,
+  selectedModelId,
+}: {
+  fileInputRef: React.MutableRefObject<HTMLInputElement | null>;
+  status: UseChatHelpers<ChatMessage>["status"];
+  selectedModelId: string;
+}) {
+  const { data: modelsResponse } = useSWR(
+    `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/models`,
+    (url: string) => fetch(url).then((r) => r.json()),
+    { revalidateOnFocus: false, dedupingInterval: 3_600_000 }
+  );
+
+  const caps: Record<string, ModelCapabilities> | undefined =
+    modelsResponse?.capabilities ?? modelsResponse;
+  const hasVision = caps?.[selectedModelId]?.vision ?? false;
+
+  return (
+    <Button
+      className={cn(
+        "h-7 w-7 rounded-lg border border-border/40 p-1 transition-colors",
+        hasVision
+          ? "text-foreground hover:border-border hover:text-foreground"
+          : "text-muted-foreground/30 cursor-not-allowed"
+      )}
+      data-testid="attachments-button"
+      disabled={status !== "ready" || !hasVision}
+      onClick={(event) => {
+        event.preventDefault();
+        fileInputRef.current?.click();
+      }}
+      variant="ghost"
+    >
+      <PaperclipIcon size={14} style={{ width: 14, height: 14 }} />
+    </Button>
+  );
+}
+
+const AttachmentsButton = memo(PureAttachmentsButton);
+
+function PureModelSelectorCompact({
+  selectedModelId,
+  onModelChange,
+}: {
+  selectedModelId: string;
+  onModelChange?: (modelId: string) => void;
+}) {
+  const [open, setOpen] = useState(false);
+  const { data: modelsData } = useSWR(
+    `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/models`,
+    (url: string) => fetch(url).then((r) => r.json()),
+    { revalidateOnFocus: false, dedupingInterval: 3_600_000 }
+  );
+
+  const capabilities: Record<string, ModelCapabilities> | undefined =
+    modelsData?.capabilities ?? modelsData;
+  const dynamicModels: ChatModel[] | undefined = modelsData?.models;
+  const activeModels = dynamicModels ?? chatModels;
+
+  const selectedModel =
+    activeModels.find((m: ChatModel) => m.id === selectedModelId) ??
+    activeModels.find((m: ChatModel) => m.id === DEFAULT_CHAT_MODEL) ??
+    activeModels[0];
+  const [provider] = selectedModel.id.split("/");
+
+  return (
+    <ModelSelector onOpenChange={setOpen} open={open}>
+      <ModelSelectorTrigger asChild>
+        <Button
+          className="h-7 max-w-[200px] justify-between gap-1.5 rounded-lg px-2 text-[12px] text-muted-foreground transition-colors hover:text-foreground"
+          data-testid="model-selector"
+          variant="ghost"
+        >
+          {provider && <ModelSelectorLogo provider={provider} />}
+          <ModelSelectorName>{selectedModel.name}</ModelSelectorName>
+        </Button>
+      </ModelSelectorTrigger>
+      <ModelSelectorContent>
+        <ModelSelectorInput placeholder="Search models..." />
+        <ModelSelectorList>
+          {(() => {
+            const curatedIds = new Set(chatModels.map((m) => m.id));
+            const allModels = dynamicModels
+              ? [
+                  ...chatModels,
+                  ...dynamicModels.filter((m) => !curatedIds.has(m.id)),
+                ]
+              : chatModels;
+
+            const grouped: Record<
+              string,
+              { model: ChatModel; curated: boolean }[]
+            > = {};
+            for (const model of allModels) {
+              const key = curatedIds.has(model.id)
+                ? "_available"
+                : model.provider;
+              if (!grouped[key]) {
+                grouped[key] = [];
+              }
+              grouped[key].push({ model, curated: curatedIds.has(model.id) });
+            }
+
+            const sortedKeys = Object.keys(grouped).sort((a, b) => {
+              if (a === "_available") {
+                return -1;
+              }
+              if (b === "_available") {
+                return 1;
+              }
+              return a.localeCompare(b);
+            });
+
+            const providerNames: Record<string, string> = {
+              alibaba: "Alibaba",
+              anthropic: "Anthropic",
+              "arcee-ai": "Arcee AI",
+              bytedance: "ByteDance",
+              cohere: "Cohere",
+              deepseek: "DeepSeek",
+              google: "Google",
+              inception: "Inception",
+              kwaipilot: "Kwaipilot",
+              meituan: "Meituan",
+              meta: "Meta",
+              minimax: "MiniMax",
+              mistral: "Mistral",
+              moonshotai: "Moonshot",
+              morph: "Morph",
+              nvidia: "Nvidia",
+              openai: "OpenAI",
+              perplexity: "Perplexity",
+              "prime-intellect": "Prime Intellect",
+              xiaomi: "Xiaomi",
+              xai: "xAI",
+              zai: "Zai",
+            };
+
+            return sortedKeys.map((key) => (
+              <ModelSelectorGroup
+                heading={
+                  key === "_available"
+                    ? "Available"
+                    : (providerNames[key] ?? key)
+                }
+                key={key}
+              >
+                {grouped[key].map(({ model, curated }) => {
+                  const logoProvider = model.id.split("/")[0];
+                  return (
+                    <ModelSelectorItem
+                      className={cn(
+                        "flex w-full",
+                        model.id === selectedModel.id &&
+                          "border-b border-dashed border-foreground/50",
+                        !curated && "opacity-40 cursor-default"
+                      )}
+                      key={model.id}
+                      onSelect={() => {
+                        if (!curated) {
+                          return;
+                        }
+                        onModelChange?.(model.id);
+                        setCookie("chat-model", model.id);
+                        setOpen(false);
+                        setTimeout(() => {
+                          document
+                            .querySelector<HTMLTextAreaElement>(
+                              "[data-testid='multimodal-input']"
+                            )
+                            ?.focus();
+                        }, 50);
+                      }}
+                      value={model.id}
+                    >
+                      <ModelSelectorLogo provider={logoProvider} />
+                      <ModelSelectorName>{model.name}</ModelSelectorName>
+                      <div className="ml-auto flex items-center gap-2 text-foreground/70">
+                        {capabilities?.[model.id]?.tools && (
+                          <WrenchIcon className="size-3.5" />
+                        )}
+                        {capabilities?.[model.id]?.vision && (
+                          <EyeIcon className="size-3.5" />
+                        )}
+                        {capabilities?.[model.id]?.reasoning && (
+                          <BrainIcon className="size-3.5" />
+                        )}
+                        {!curated && (
+                          <LockIcon className="size-3 text-muted-foreground/50" />
+                        )}
+                      </div>
+                    </ModelSelectorItem>
+                  );
+                })}
+              </ModelSelectorGroup>
+            ));
+          })()}
+        </ModelSelectorList>
+      </ModelSelectorContent>
+    </ModelSelector>
+  );
+}
+
+const ModelSelectorCompact = memo(PureModelSelectorCompact);
+
+function PureStopButton({
+  stop,
+  setMessages,
+}: {
+  stop: () => void;
+  setMessages: UseChatHelpers<ChatMessage>["setMessages"];
+}) {
+  return (
+    <Button
+      className="h-7 w-7 rounded-xl bg-foreground p-1 text-background transition-all duration-200 hover:opacity-85 active:scale-95 disabled:bg-muted disabled:text-muted-foreground/25 disabled:cursor-not-allowed"
+      data-testid="stop-button"
+      onClick={(event) => {
+        event.preventDefault();
+        stop();
+        setMessages((messages) => messages);
+      }}
+    >
+      <StopIcon size={14} />
+    </Button>
+  );
+}
+
+const StopButton = memo(PureStopButton);

components/chat/preview-attachment.tsx

@@ -0,0 +1,54 @@
+import type { Attachment } from "@/lib/types";
+import { Spinner } from "../ui/spinner";
+import { CrossSmallIcon } from "./icons";
+
+export const PreviewAttachment = ({
+  attachment,
+  isUploading = false,
+  onRemove,
+}: {
+  attachment: Attachment;
+  isUploading?: boolean;
+  onRemove?: () => void;
+}) => {
+  const { name, url, contentType } = attachment;
+
+  return (
+    <div
+      className="group relative h-24 w-24 shrink-0 overflow-hidden rounded-xl border border-border/40 bg-muted"
+      data-testid="input-attachment-preview"
+    >
+      {contentType?.startsWith("image") ? (
+        // eslint-disable-next-line @next/next/no-img-element
+        <img
+          alt={name ?? "attachment"}
+          className="size-full object-cover"
+          src={url}
+        />
+      ) : (
+        <div className="flex size-full items-center justify-center text-muted-foreground text-xs">
+          File
+        </div>
+      )}
+
+      {isUploading && (
+        <div
+          className="absolute inset-0 flex items-center justify-center rounded-xl bg-black/40 backdrop-blur-sm"
+          data-testid="input-attachment-loader"
+        >
+          <Spinner className="size-5" />
+        </div>
+      )}
+
+      {onRemove && !isUploading && (
+        <button
+          className="absolute top-1.5 right-1.5 flex size-5 items-center justify-center rounded-full bg-black/60 text-white opacity-0 backdrop-blur-sm transition-opacity hover:bg-black/80 group-hover:opacity-100"
+          onClick={onRemove}
+          type="button"
+        >
+          <CrossSmallIcon size={10} />
+        </button>
+      )}
+    </div>
+  );
+};

components/chat/preview.tsx

@@ -0,0 +1,59 @@
+"use client";
+
+import { useRouter } from "next/navigation";
+import { suggestions } from "@/lib/constants";
+import { SparklesIcon } from "./icons";
+
+export function Preview() {
+  const router = useRouter();
+
+  const handleAction = (query?: string) => {
+    const url = query ? `/?query=${encodeURIComponent(query)}` : "/";
+    router.push(url);
+  };
+
+  return (
+    <div className="flex h-full flex-col overflow-hidden rounded-tl-2xl bg-background">
+      <div className="flex h-14 shrink-0 items-center gap-3 border-b border-border/20 px-5">
+        <div className="flex size-5 items-center justify-center rounded bg-muted/60 ring-1 ring-border/50">
+          <SparklesIcon size={10} />
+        </div>
+        <span className="text-[13px] text-muted-foreground">Chatbot</span>
+      </div>
+
+      <div className="flex flex-1 flex-col items-center justify-center gap-8 px-8">
+        <div className="text-center">
+          <h2 className="text-xl font-semibold tracking-tight">
+            What can I help with?
+          </h2>
+          <p className="mt-1.5 text-sm text-muted-foreground">
+            Ask a question, write code, or explore ideas.
+          </p>
+        </div>
+
+        <div className="grid w-full max-w-md grid-cols-2 gap-2">
+          {suggestions.map((suggestion) => (
+            <button
+              className="rounded-xl border border-border/30 bg-card/20 px-3 py-2.5 text-left text-[11px] leading-relaxed text-muted-foreground/70 transition-all duration-200 hover:border-border/60 hover:bg-card/40 hover:text-muted-foreground"
+              key={suggestion}
+              onClick={() => handleAction(suggestion)}
+              type="button"
+            >
+              {suggestion}
+            </button>
+          ))}
+        </div>
+      </div>
+
+      <div className="shrink-0 px-5 pb-5">
+        <button
+          className="flex w-full items-center rounded-2xl border border-border/30 bg-card/30 px-4 py-3 text-left text-[13px] text-muted-foreground/40 transition-colors hover:border-border/50 hover:text-muted-foreground/60"
+          onClick={() => handleAction()}
+          type="button"
+        >
+          Ask anything...
+        </button>
+      </div>
+    </div>
+  );
+}

components/chat/shell.tsx

@@ -0,0 +1,128 @@
+"use client";
+
+import { useEffect, useRef, useState } from "react";
+import { useActiveChat } from "@/hooks/use-active-chat";
+import type { Attachment, ChatMessage } from "@/lib/types";
+import { ChatHeader } from "./chat-header";
+import { DataStreamHandler } from "./data-stream-handler";
+import { submitEditedMessage } from "./message-editor";
+import { Messages } from "./messages";
+import { MultimodalInput } from "./multimodal-input";
+
+export function ChatShell() {
+  const {
+    chatId,
+    messages,
+    setMessages,
+    sendMessage,
+    status,
+    stop,
+    regenerate,
+    addToolApprovalResponse,
+    input,
+    setInput,
+    visibilityType,
+    isReadonly,
+    isLoading,
+    votes,
+    currentModelId,
+    setCurrentModelId,
+  } = useActiveChat();
+
+  const [editingMessage, setEditingMessage] = useState<ChatMessage | null>(
+    null
+  );
+  const [attachments, setAttachments] = useState<Attachment[]>([]);
+
+  const stopRef = useRef(stop);
+  stopRef.current = stop;
+
+  const prevChatIdRef = useRef(chatId);
+  useEffect(() => {
+    if (prevChatIdRef.current !== chatId) {
+      prevChatIdRef.current = chatId;
+      stopRef.current();
+      setEditingMessage(null);
+      setAttachments([]);
+    }
+  }, [chatId]);
+
+  return (
+    <>
+      <div className="flex h-dvh w-full flex-row overflow-hidden">
+        <div className="flex min-w-0 flex-col bg-sidebar w-full">
+          <ChatHeader
+            chatId={chatId}
+            isReadonly={isReadonly}
+            selectedVisibilityType={visibilityType}
+          />
+
+          <div className="relative flex min-h-0 flex-1 flex-col overflow-hidden bg-background md:rounded-tl-[12px] md:border-t md:border-l md:border-border/40">
+            <Messages
+              addToolApprovalResponse={addToolApprovalResponse}
+              chatId={chatId}
+              isLoading={isLoading}
+              isReadonly={isReadonly}
+              messages={messages}
+              onEditMessage={(msg) => {
+                const text = msg.parts
+                  ?.filter((p) => p.type === "text")
+                  .map((p) => p.text)
+                  .join("");
+                setInput(text ?? "");
+                setEditingMessage(msg);
+              }}
+              regenerate={regenerate}
+              selectedModelId={currentModelId}
+              setMessages={setMessages}
+              status={status}
+              votes={votes}
+            />
+
+            <div className="sticky bottom-0 z-1 mx-auto flex w-full max-w-4xl gap-2 border-t-0 bg-background px-2 pb-3 md:px-4 md:pb-4">
+              {!isReadonly && (
+                <MultimodalInput
+                  attachments={attachments}
+                  chatId={chatId}
+                  editingMessage={editingMessage}
+                  input={input}
+                  isLoading={isLoading}
+                  messages={messages}
+                  onCancelEdit={() => {
+                    setEditingMessage(null);
+                    setInput("");
+                  }}
+                  onModelChange={setCurrentModelId}
+                  selectedModelId={currentModelId}
+                  selectedVisibilityType={visibilityType}
+                  sendMessage={
+                    editingMessage
+                      ? async () => {
+                          const msg = editingMessage;
+                          setEditingMessage(null);
+                          await submitEditedMessage({
+                            message: msg,
+                            text: input,
+                            setMessages,
+                            regenerate,
+                          });
+                          setInput("");
+                        }
+                      : sendMessage
+                  }
+                  setAttachments={setAttachments}
+                  setInput={setInput}
+                  setMessages={setMessages}
+                  status={status}
+                  stop={stop}
+                />
+              )}
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <DataStreamHandler />
+    </>
+  );
+}

components/chat/sidebar-history-item.tsx

@@ -0,0 +1,124 @@
+import Link from "next/link";
+import { memo } from "react";
+import { useChatVisibility } from "@/hooks/use-chat-visibility";
+import type { Chat } from "@/lib/db/schema";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuPortal,
+  DropdownMenuSub,
+  DropdownMenuSubContent,
+  DropdownMenuSubTrigger,
+  DropdownMenuTrigger,
+} from "../ui/dropdown-menu";
+import {
+  SidebarMenuAction,
+  SidebarMenuButton,
+  SidebarMenuItem,
+} from "../ui/sidebar";
+import {
+  CheckCircleFillIcon,
+  GlobeIcon,
+  LockIcon,
+  MoreHorizontalIcon,
+  ShareIcon,
+  TrashIcon,
+} from "./icons";
+
+const PureChatItem = ({
+  chat,
+  isActive,
+  onDelete,
+  setOpenMobile,
+}: {
+  chat: Chat;
+  isActive: boolean;
+  onDelete: (chatId: string) => void;
+  setOpenMobile: (open: boolean) => void;
+}) => {
+  const { visibilityType, setVisibilityType } = useChatVisibility({
+    chatId: chat.id,
+    initialVisibilityType: chat.visibility,
+  });
+
+  return (
+    <SidebarMenuItem>
+      <SidebarMenuButton
+        asChild
+        className="h-8 rounded-none text-[13px] text-sidebar-foreground/50 transition-all duration-150 hover:bg-transparent hover:text-sidebar-foreground data-active:bg-transparent data-active:font-normal data-active:text-sidebar-foreground/50 data-[active=true]:text-sidebar-foreground data-[active=true]:font-medium data-[active=true]:border-b data-[active=true]:border-dashed data-[active=true]:border-sidebar-foreground/50"
+        isActive={isActive}
+      >
+        <Link href={`/chat/${chat.id}`} onClick={() => setOpenMobile(false)}>
+          <span className="truncate">{chat.title}</span>
+        </Link>
+      </SidebarMenuButton>
+
+      <DropdownMenu modal={true}>
+        <DropdownMenuTrigger asChild>
+          <SidebarMenuAction
+            className="mr-0.5 rounded-md text-sidebar-foreground/50 ring-0 transition-colors duration-150 focus-visible:ring-0 hover:text-sidebar-foreground data-[state=open]:bg-sidebar-accent data-[state=open]:text-sidebar-accent-foreground"
+            showOnHover={!isActive}
+          >
+            <MoreHorizontalIcon />
+            <span className="sr-only">More</span>
+          </SidebarMenuAction>
+        </DropdownMenuTrigger>
+
+        <DropdownMenuContent align="end" side="bottom">
+          <DropdownMenuSub>
+            <DropdownMenuSubTrigger className="cursor-pointer">
+              <ShareIcon />
+              <span>Share</span>
+            </DropdownMenuSubTrigger>
+            <DropdownMenuPortal>
+              <DropdownMenuSubContent>
+                <DropdownMenuItem
+                  className="cursor-pointer flex-row justify-between"
+                  onClick={() => {
+                    setVisibilityType("private");
+                  }}
+                >
+                  <div className="flex flex-row items-center gap-2">
+                    <LockIcon size={12} />
+                    <span>Private</span>
+                  </div>
+                  {visibilityType === "private" ? (
+                    <CheckCircleFillIcon />
+                  ) : null}
+                </DropdownMenuItem>
+                <DropdownMenuItem
+                  className="cursor-pointer flex-row justify-between"
+                  onClick={() => {
+                    setVisibilityType("public");
+                  }}
+                >
+                  <div className="flex flex-row items-center gap-2">
+                    <GlobeIcon />
+                    <span>Public</span>
+                  </div>
+                  {visibilityType === "public" ? <CheckCircleFillIcon /> : null}
+                </DropdownMenuItem>
+              </DropdownMenuSubContent>
+            </DropdownMenuPortal>
+          </DropdownMenuSub>
+
+          <DropdownMenuItem
+            onSelect={() => onDelete(chat.id)}
+            variant="destructive"
+          >
+            <TrashIcon />
+            <span>Delete</span>
+          </DropdownMenuItem>
+        </DropdownMenuContent>
+      </DropdownMenu>
+    </SidebarMenuItem>
+  );
+};
+
+export const ChatItem = memo(PureChatItem, (prevProps, nextProps) => {
+  if (prevProps.isActive !== nextProps.isActive) {
+    return false;
+  }
+  return true;
+});

components/chat/sidebar-history.tsx

@@ -0,0 +1,373 @@
+"use client";
+
+import { isToday, isYesterday, subMonths, subWeeks } from "date-fns";
+import { motion } from "framer-motion";
+import { usePathname, useRouter } from "next/navigation";
+import type { User } from "next-auth";
+import { useState } from "react";
+import { toast } from "sonner";
+import useSWRInfinite from "swr/infinite";
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from "@/components/ui/alert-dialog";
+import {
+  SidebarGroup,
+  SidebarGroupContent,
+  SidebarGroupLabel,
+  SidebarMenu,
+  useSidebar,
+} from "@/components/ui/sidebar";
+import type { Chat } from "@/lib/db/schema";
+import { fetcher } from "@/lib/utils";
+import { LoaderIcon } from "./icons";
+import { ChatItem } from "./sidebar-history-item";
+
+type GroupedChats = {
+  today: Chat[];
+  yesterday: Chat[];
+  lastWeek: Chat[];
+  lastMonth: Chat[];
+  older: Chat[];
+};
+
+export type ChatHistory = {
+  chats: Chat[];
+  hasMore: boolean;
+};
+
+const PAGE_SIZE = 20;
+
+const groupChatsByDate = (chats: Chat[]): GroupedChats => {
+  const now = new Date();
+  const oneWeekAgo = subWeeks(now, 1);
+  const oneMonthAgo = subMonths(now, 1);
+
+  return chats.reduce(
+    (groups, chat) => {
+      const chatDate = new Date(chat.createdAt);
+
+      if (isToday(chatDate)) {
+        groups.today.push(chat);
+      } else if (isYesterday(chatDate)) {
+        groups.yesterday.push(chat);
+      } else if (chatDate > oneWeekAgo) {
+        groups.lastWeek.push(chat);
+      } else if (chatDate > oneMonthAgo) {
+        groups.lastMonth.push(chat);
+      } else {
+        groups.older.push(chat);
+      }
+
+      return groups;
+    },
+    {
+      today: [],
+      yesterday: [],
+      lastWeek: [],
+      lastMonth: [],
+      older: [],
+    } as GroupedChats
+  );
+};
+
+export function getChatHistoryPaginationKey(
+  pageIndex: number,
+  previousPageData: ChatHistory
+) {
+  if (previousPageData && previousPageData.hasMore === false) {
+    return null;
+  }
+
+  if (pageIndex === 0) {
+    return `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/history?limit=${PAGE_SIZE}`;
+  }
+
+  const firstChatFromPage = previousPageData.chats.at(-1);
+
+  if (!firstChatFromPage) {
+    return null;
+  }
+
+  return `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/history?ending_before=${firstChatFromPage.id}&limit=${PAGE_SIZE}`;
+}
+
+export function SidebarHistory({ user }: { user: User | undefined }) {
+  const { setOpenMobile } = useSidebar();
+  const pathname = usePathname();
+  const id = pathname?.startsWith("/chat/") ? pathname.split("/")[2] : null;
+
+  const {
+    data: paginatedChatHistories,
+    setSize,
+    isValidating,
+    isLoading,
+    mutate,
+  } = useSWRInfinite<ChatHistory>(
+    user ? getChatHistoryPaginationKey : () => null,
+    fetcher,
+    { fallbackData: [], revalidateOnFocus: false }
+  );
+
+  const router = useRouter();
+  const [deleteId, setDeleteId] = useState<string | null>(null);
+  const [showDeleteDialog, setShowDeleteDialog] = useState(false);
+
+  const hasReachedEnd = paginatedChatHistories
+    ? paginatedChatHistories.some((page) => page.hasMore === false)
+    : false;
+
+  const hasEmptyChatHistory = paginatedChatHistories
+    ? paginatedChatHistories.every((page) => page.chats.length === 0)
+    : false;
+
+  const handleDelete = () => {
+    const chatToDelete = deleteId;
+    const isCurrentChat = pathname === `/chat/${chatToDelete}`;
+
+    setShowDeleteDialog(false);
+
+    if (isCurrentChat) {
+      router.replace("/");
+    }
+
+    mutate((chatHistories) => {
+      if (chatHistories) {
+        return chatHistories.map((chatHistory) => ({
+          ...chatHistory,
+          chats: chatHistory.chats.filter((chat) => chat.id !== chatToDelete),
+        }));
+      }
+    });
+
+    fetch(
+      `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/chat?id=${chatToDelete}`,
+      { method: "DELETE" }
+    );
+
+    toast.success("Chat deleted");
+  };
+
+  if (!user) {
+    return (
+      <SidebarGroup className="group-data-[collapsible=icon]:hidden">
+        <SidebarGroupContent>
+          <div className="flex w-full flex-row items-center justify-center gap-2 px-2 text-[13px] text-sidebar-foreground/60">
+            Login to save and revisit previous chats!
+          </div>
+        </SidebarGroupContent>
+      </SidebarGroup>
+    );
+  }
+
+  if (isLoading) {
+    return (
+      <SidebarGroup className="group-data-[collapsible=icon]:hidden">
+        <SidebarGroupLabel className="text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70">
+          History
+        </SidebarGroupLabel>
+        <SidebarGroupContent>
+          <div className="flex flex-col gap-0.5 px-1">
+            {[44, 32, 28, 64, 52].map((item) => (
+              <div
+                className="flex h-8 items-center gap-2 rounded-lg px-2"
+                key={item}
+              >
+                <div
+                  className="h-3 max-w-(--skeleton-width) flex-1 animate-pulse rounded-md bg-sidebar-foreground/[0.06]"
+                  style={
+                    {
+                      "--skeleton-width": `${item}%`,
+                    } as React.CSSProperties
+                  }
+                />
+              </div>
+            ))}
+          </div>
+        </SidebarGroupContent>
+      </SidebarGroup>
+    );
+  }
+
+  if (hasEmptyChatHistory) {
+    return (
+      <SidebarGroup className="group-data-[collapsible=icon]:hidden">
+        <SidebarGroupLabel className="text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70">
+          History
+        </SidebarGroupLabel>
+        <SidebarGroupContent>
+          <div className="flex w-full flex-row items-center justify-center gap-2 px-2 text-[13px] text-sidebar-foreground/60">
+            Your conversations will appear here once you start chatting!
+          </div>
+        </SidebarGroupContent>
+      </SidebarGroup>
+    );
+  }
+
+  return (
+    <>
+      <SidebarGroup className="group-data-[collapsible=icon]:hidden">
+        <SidebarGroupLabel className="text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70">
+          History
+        </SidebarGroupLabel>
+        <SidebarGroupContent>
+          <SidebarMenu>
+            {paginatedChatHistories &&
+              (() => {
+                const chatsFromHistory = paginatedChatHistories.flatMap(
+                  (paginatedChatHistory) => paginatedChatHistory.chats
+                );
+
+                const groupedChats = groupChatsByDate(chatsFromHistory);
+
+                return (
+                  <div className="flex flex-col gap-4">
+                    {groupedChats.today.length > 0 && (
+                      <div>
+                        <div className="px-2 py-1 text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70">
+                          Today
+                        </div>
+                        {groupedChats.today.map((chat) => (
+                          <ChatItem
+                            chat={chat}
+                            isActive={chat.id === id}
+                            key={chat.id}
+                            onDelete={(chatId) => {
+                              setDeleteId(chatId);
+                              setShowDeleteDialog(true);
+                            }}
+                            setOpenMobile={setOpenMobile}
+                          />
+                        ))}
+                      </div>
+                    )}
+
+                    {groupedChats.yesterday.length > 0 && (
+                      <div>
+                        <div className="px-2 py-1 text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70">
+                          Yesterday
+                        </div>
+                        {groupedChats.yesterday.map((chat) => (
+                          <ChatItem
+                            chat={chat}
+                            isActive={chat.id === id}
+                            key={chat.id}
+                            onDelete={(chatId) => {
+                              setDeleteId(chatId);
+                              setShowDeleteDialog(true);
+                            }}
+                            setOpenMobile={setOpenMobile}
+                          />
+                        ))}
+                      </div>
+                    )}
+
+                    {groupedChats.lastWeek.length > 0 && (
+                      <div>
+                        <div className="px-2 py-1 text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70">
+                          Last 7 days
+                        </div>
+                        {groupedChats.lastWeek.map((chat) => (
+                          <ChatItem
+                            chat={chat}
+                            isActive={chat.id === id}
+                            key={chat.id}
+                            onDelete={(chatId) => {
+                              setDeleteId(chatId);
+                              setShowDeleteDialog(true);
+                            }}
+                            setOpenMobile={setOpenMobile}
+                          />
+                        ))}
+                      </div>
+                    )}
+
+                    {groupedChats.lastMonth.length > 0 && (
+                      <div>
+                        <div className="px-2 py-1 text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70">
+                          Last 30 days
+                        </div>
+                        {groupedChats.lastMonth.map((chat) => (
+                          <ChatItem
+                            chat={chat}
+                            isActive={chat.id === id}
+                            key={chat.id}
+                            onDelete={(chatId) => {
+                              setDeleteId(chatId);
+                              setShowDeleteDialog(true);
+                            }}
+                            setOpenMobile={setOpenMobile}
+                          />
+                        ))}
+                      </div>
+                    )}
+
+                    {groupedChats.older.length > 0 && (
+                      <div>
+                        <div className="px-2 py-1 text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70">
+                          Older
+                        </div>
+                        {groupedChats.older.map((chat) => (
+                          <ChatItem
+                            chat={chat}
+                            isActive={chat.id === id}
+                            key={chat.id}
+                            onDelete={(chatId) => {
+                              setDeleteId(chatId);
+                              setShowDeleteDialog(true);
+                            }}
+                            setOpenMobile={setOpenMobile}
+                          />
+                        ))}
+                      </div>
+                    )}
+                  </div>
+                );
+              })()}
+          </SidebarMenu>
+
+          <motion.div
+            onViewportEnter={() => {
+              if (!isValidating && !hasReachedEnd) {
+                setSize((size) => size + 1);
+              }
+            }}
+          />
+
+          {hasReachedEnd ? null : (
+            <div className="mt-1 flex flex-row items-center gap-2 px-4 py-2 text-sidebar-foreground/50">
+              <div className="animate-spin">
+                <LoaderIcon />
+              </div>
+              <div className="text-[11px]">Loading...</div>
+            </div>
+          )}
+        </SidebarGroupContent>
+      </SidebarGroup>
+
+      <AlertDialog onOpenChange={setShowDeleteDialog} open={showDeleteDialog}>
+        <AlertDialogContent>
+          <AlertDialogHeader>
+            <AlertDialogTitle>Are you absolutely sure?</AlertDialogTitle>
+            <AlertDialogDescription>
+              This action cannot be undone. This will permanently delete your
+              chat and remove it from our servers.
+            </AlertDialogDescription>
+          </AlertDialogHeader>
+          <AlertDialogFooter>
+            <AlertDialogCancel>Cancel</AlertDialogCancel>
+            <AlertDialogAction onClick={handleDelete}>
+              Continue
+            </AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
+    </>
+  );
+}

components/chat/sidebar-toggle.tsx

@@ -0,0 +1,35 @@
+import type { ComponentProps } from "react";
+
+import { type SidebarTrigger, useSidebar } from "@/components/ui/sidebar";
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip";
+import { Button } from "../ui/button";
+import { SidebarLeftIcon } from "./icons";
+
+export function SidebarToggle({
+  className,
+}: ComponentProps<typeof SidebarTrigger>) {
+  const { toggleSidebar } = useSidebar();
+
+  return (
+    <Tooltip>
+      <TooltipTrigger asChild>
+        <Button
+          className={className}
+          data-testid="sidebar-toggle-button"
+          onClick={toggleSidebar}
+          size="icon-sm"
+          variant="outline"
+        >
+          <SidebarLeftIcon size={16} />
+        </Button>
+      </TooltipTrigger>
+      <TooltipContent align="start" className="hidden md:block">
+        Toggle Sidebar
+      </TooltipContent>
+    </Tooltip>
+  );
+}

components/chat/sidebar-user-nav.tsx

@@ -0,0 +1,121 @@
+"use client";
+
+import { ChevronUp } from "lucide-react";
+import { useRouter } from "next/navigation";
+import type { User } from "next-auth";
+import { signOut, useSession } from "next-auth/react";
+import { useTheme } from "next-themes";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuSeparator,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import {
+  SidebarMenu,
+  SidebarMenuButton,
+  SidebarMenuItem,
+} from "@/components/ui/sidebar";
+import { guestRegex } from "@/lib/constants";
+import { LoaderIcon } from "./icons";
+import { toast } from "./toast";
+
+function emailToHue(email: string): number {
+  let hash = 0;
+  for (const char of email) {
+    hash = char.charCodeAt(0) + ((hash << 5) - hash);
+  }
+  return Math.abs(hash) % 360;
+}
+
+export function SidebarUserNav({ user }: { user: User }) {
+  const router = useRouter();
+  const { data, status } = useSession();
+  const { setTheme, resolvedTheme } = useTheme();
+
+  const isGuest = guestRegex.test(data?.user?.email ?? "");
+
+  return (
+    <SidebarMenu>
+      <SidebarMenuItem>
+        <DropdownMenu>
+          <DropdownMenuTrigger asChild>
+            {status === "loading" ? (
+              <SidebarMenuButton className="h-10 justify-between rounded-lg bg-transparent text-sidebar-foreground/50 transition-colors duration-150 data-[state=open]:bg-sidebar-accent data-[state=open]:text-sidebar-accent-foreground">
+                <div className="flex flex-row items-center gap-2">
+                  <div className="size-6 animate-pulse rounded-full bg-sidebar-foreground/10" />
+                  <span className="animate-pulse rounded-md bg-sidebar-foreground/10 text-transparent text-[13px]">
+                    Loading...
+                  </span>
+                </div>
+                <div className="animate-spin text-sidebar-foreground/50">
+                  <LoaderIcon />
+                </div>
+              </SidebarMenuButton>
+            ) : (
+              <SidebarMenuButton
+                className="h-8 px-2 rounded-lg bg-transparent text-sidebar-foreground/70 transition-colors duration-150 hover:text-sidebar-foreground data-[state=open]:bg-sidebar-accent data-[state=open]:text-sidebar-accent-foreground"
+                data-testid="user-nav-button"
+              >
+                <div
+                  className="size-5 shrink-0 rounded-full ring-1 ring-sidebar-border/50"
+                  style={{
+                    background: `linear-gradient(135deg, oklch(0.35 0.08 ${emailToHue(user.email ?? "")}), oklch(0.25 0.05 ${emailToHue(user.email ?? "") + 40}))`,
+                  }}
+                />
+                <span className="truncate text-[13px]" data-testid="user-email">
+                  {isGuest ? "Guest" : user?.email}
+                </span>
+                <ChevronUp className="ml-auto size-3.5 text-sidebar-foreground/50" />
+              </SidebarMenuButton>
+            )}
+          </DropdownMenuTrigger>
+          <DropdownMenuContent
+            className="w-(--radix-popper-anchor-width) rounded-lg border border-border/60 bg-card/95 backdrop-blur-xl shadow-[var(--shadow-float)]"
+            data-testid="user-nav-menu"
+            side="top"
+          >
+            <DropdownMenuItem
+              className="cursor-pointer text-[13px]"
+              data-testid="user-nav-item-theme"
+              onSelect={() =>
+                setTheme(resolvedTheme === "dark" ? "light" : "dark")
+              }
+            >
+              {`Toggle ${resolvedTheme === "light" ? "dark" : "light"} mode`}
+            </DropdownMenuItem>
+            <DropdownMenuSeparator />
+            <DropdownMenuItem asChild data-testid="user-nav-item-auth">
+              <button
+                className="w-full cursor-pointer text-[13px]"
+                onClick={() => {
+                  if (status === "loading") {
+                    toast({
+                      type: "error",
+                      description:
+                        "Checking authentication status, please try again!",
+                    });
+
+                    return;
+                  }
+
+                  if (isGuest) {
+                    router.push("/login");
+                  } else {
+                    signOut({
+                      redirectTo: "/",
+                    });
+                  }
+                }}
+                type="button"
+              >
+                {isGuest ? "Login to your account" : "Sign out"}
+              </button>
+            </DropdownMenuItem>
+          </DropdownMenuContent>
+        </DropdownMenu>
+      </SidebarMenuItem>
+    </SidebarMenu>
+  );
+}

components/chat/sign-out-form.tsx

@@ -0,0 +1,25 @@
+import Form from "next/form";
+
+import { signOut } from "@/app/(auth)/auth";
+
+export const SignOutForm = () => {
+  return (
+    <Form
+      action={async () => {
+        "use server";
+
+        await signOut({
+          redirectTo: "/",
+        });
+      }}
+      className="w-full"
+    >
+      <button
+        className="w-full px-1 py-0.5 text-left text-red-500"
+        type="submit"
+      >
+        Sign out
+      </button>
+    </Form>
+  );
+};

components/chat/slash-commands.tsx

@@ -0,0 +1,137 @@
+"use client";
+
+import {
+  BombIcon,
+  ListIcon,
+  PaletteIcon,
+  PenLineIcon,
+  PenSquareIcon,
+  Trash2Icon,
+  XIcon,
+} from "lucide-react";
+import { type ReactNode, useEffect, useRef } from "react";
+import { cn } from "@/lib/utils";
+
+export type SlashCommand = {
+  name: string;
+  description: string;
+  icon: ReactNode;
+  action: string;
+  shortcut?: string;
+};
+
+export const slashCommands: SlashCommand[] = [
+  {
+    name: "new",
+    description: "Start a new chat",
+    icon: <PenSquareIcon className="size-3.5" />,
+    action: "new",
+  },
+  {
+    name: "clear",
+    description: "Clear current chat",
+    icon: <Trash2Icon className="size-3.5" />,
+    action: "clear",
+  },
+  {
+    name: "rename",
+    description: "Rename current chat",
+    icon: <PenLineIcon className="size-3.5" />,
+    action: "rename",
+  },
+  {
+    name: "model",
+    description: "Change the AI model",
+    icon: <ListIcon className="size-3.5" />,
+    action: "model",
+  },
+  {
+    name: "theme",
+    description: "Toggle dark/light mode",
+    icon: <PaletteIcon className="size-3.5" />,
+    action: "theme",
+  },
+  {
+    name: "delete",
+    description: "Delete current chat",
+    icon: <XIcon className="size-3.5" />,
+    action: "delete",
+  },
+  {
+    name: "purge",
+    description: "Delete all chats",
+    icon: <BombIcon className="size-3.5" />,
+    action: "purge",
+  },
+];
+
+type SlashCommandMenuProps = {
+  query: string;
+  onSelect: (command: SlashCommand) => void;
+  onClose: () => void;
+  selectedIndex: number;
+};
+
+export function SlashCommandMenu({
+  query,
+  onSelect,
+  onClose: _onClose,
+  selectedIndex,
+}: SlashCommandMenuProps) {
+  const menuRef = useRef<HTMLDivElement>(null);
+  const filtered = slashCommands.filter((cmd) =>
+    cmd.name.startsWith(query.toLowerCase())
+  );
+
+  useEffect(() => {
+    const selected = menuRef.current?.querySelector("[data-selected='true']");
+    if (selected) {
+      selected.scrollIntoView({ block: "nearest" });
+    }
+  }, []);
+
+  if (filtered.length === 0) {
+    return null;
+  }
+
+  return (
+    <div
+      className="absolute bottom-full left-0 right-0 z-50 mb-2 overflow-hidden rounded-xl border border-border/50 bg-card/95 shadow-[var(--shadow-float)] backdrop-blur-xl"
+      ref={menuRef}
+    >
+      <div className="px-4 py-2.5 text-[10px] font-medium uppercase tracking-wider text-muted-foreground/40">
+        Commands
+      </div>
+      <div className="max-h-64 overflow-y-auto pb-1 no-scrollbar">
+        {filtered.map((cmd, index) => (
+          <button
+            className={cn(
+              "flex w-full items-center gap-3 px-4 py-2.5 text-left transition-colors",
+              index === selectedIndex ? "bg-muted/70" : "hover:bg-muted/40"
+            )}
+            data-selected={index === selectedIndex}
+            key={cmd.name}
+            onClick={() => onSelect(cmd)}
+            onMouseDown={(e) => e.preventDefault()}
+            type="button"
+          >
+            <div className="flex size-6 shrink-0 items-center justify-center text-muted-foreground/60">
+              {cmd.icon}
+            </div>
+            <span className="font-mono text-[13px] text-foreground">
+              /{cmd.name}
+            </span>
+            <span className="text-[12px] text-muted-foreground/50">
+              {cmd.description}
+            </span>
+            {cmd.shortcut && (
+              <span className="ml-auto text-[11px] text-muted-foreground/30">
+                {cmd.shortcut}
+              </span>
+            )}
+          </button>
+        ))}
+      </div>
+    </div>
+  );
+}

components/chat/submit-button.tsx

@@ -0,0 +1,38 @@
+"use client";
+
+import { useFormStatus } from "react-dom";
+
+import { LoaderIcon } from "@/components/chat/icons";
+
+import { Button } from "../ui/button";
+
+export function SubmitButton({
+  children,
+  isSuccessful,
+}: {
+  children: React.ReactNode;
+  isSuccessful: boolean;
+}) {
+  const { pending } = useFormStatus();
+
+  return (
+    <Button
+      aria-disabled={pending || isSuccessful}
+      className="relative"
+      disabled={pending || isSuccessful}
+      type={pending ? "button" : "submit"}
+    >
+      {children}
+
+      {(pending || isSuccessful) && (
+        <span className="absolute right-4 animate-spin">
+          <LoaderIcon />
+        </span>
+      )}
+
+      <output aria-live="polite" className="sr-only">
+        {pending || isSuccessful ? "Loading" : "Submit form"}
+      </output>
+    </Button>
+  );
+}

components/chat/suggested-actions.tsx

@@ -0,0 +1,78 @@
+"use client";
+
+import type { UseChatHelpers } from "@ai-sdk/react";
+import { motion } from "framer-motion";
+import { memo } from "react";
+import { suggestions } from "@/lib/constants";
+import type { ChatMessage } from "@/lib/types";
+import { Suggestion } from "../ai-elements/suggestion";
+import type { VisibilityType } from "./visibility-selector";
+
+type SuggestedActionsProps = {
+  chatId: string;
+  sendMessage: UseChatHelpers<ChatMessage>["sendMessage"];
+  selectedVisibilityType: VisibilityType;
+};
+
+function PureSuggestedActions({ chatId, sendMessage }: SuggestedActionsProps) {
+  const suggestedActions = suggestions;
+
+  return (
+    <div
+      className="flex w-full gap-2.5 overflow-x-auto pb-1 sm:grid sm:grid-cols-2 sm:overflow-visible"
+      data-testid="suggested-actions"
+      style={{
+        scrollbarWidth: "none",
+        WebkitOverflowScrolling: "touch",
+        msOverflowStyle: "none",
+      }}
+    >
+      {suggestedActions.map((suggestedAction, index) => (
+        <motion.div
+          animate={{ opacity: 1, y: 0 }}
+          className="min-w-[200px] shrink-0 sm:min-w-0 sm:shrink"
+          exit={{ opacity: 0, y: 16 }}
+          initial={{ opacity: 0, y: 16 }}
+          key={suggestedAction}
+          transition={{
+            delay: 0.06 * index,
+            duration: 0.4,
+            ease: [0.22, 1, 0.36, 1],
+          }}
+        >
+          <Suggestion
+            className="h-auto w-full whitespace-nowrap rounded-xl border border-border/50 bg-card/30 px-4 py-3 text-left text-[12px] leading-relaxed text-muted-foreground transition-all duration-200 sm:whitespace-normal sm:p-4 sm:text-[13px] hover:-translate-y-0.5 hover:bg-card/60 hover:text-foreground hover:shadow-[var(--shadow-card)]"
+            onClick={(suggestion) => {
+              window.history.pushState(
+                {},
+                "",
+                `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/chat/${chatId}`
+              );
+              sendMessage({
+                role: "user",
+                parts: [{ type: "text", text: suggestion }],
+              });
+            }}
+            suggestion={suggestedAction}
+          >
+            {suggestedAction}
+          </Suggestion>
+        </motion.div>
+      ))}
+    </div>
+  );
+}
+
+export const SuggestedActions = memo(
+  PureSuggestedActions,
+  (prevProps, nextProps) => {
+    if (prevProps.chatId !== nextProps.chatId) {
+      return false;
+    }
+    if (prevProps.selectedVisibilityType !== nextProps.selectedVisibilityType) {
+      return false;
+    }
+
+    return true;
+  }
+);

components/chat/toast.tsx

@@ -0,0 +1,75 @@
+"use client";
+
+import { type ReactNode, useEffect, useRef, useState } from "react";
+import { toast as sonnerToast } from "sonner";
+import { cn } from "@/lib/utils";
+import { CheckCircleFillIcon, WarningIcon } from "./icons";
+
+const iconsByType: Record<"success" | "error", ReactNode> = {
+  success: <CheckCircleFillIcon />,
+  error: <WarningIcon />,
+};
+
+export function toast(props: Omit<ToastProps, "id">) {
+  return sonnerToast.custom((id) => (
+    <Toast description={props.description} id={id} type={props.type} />
+  ));
+}
+
+function Toast(props: ToastProps) {
+  const { id, type, description } = props;
+
+  const descriptionRef = useRef<HTMLDivElement>(null);
+  const [multiLine, setMultiLine] = useState(false);
+
+  useEffect(() => {
+    const el = descriptionRef.current;
+    if (!el) {
+      return;
+    }
+
+    const update = () => {
+      const lineHeight = Number.parseFloat(getComputedStyle(el).lineHeight);
+      const lines = Math.round(el.scrollHeight / lineHeight);
+      setMultiLine(lines > 1);
+    };
+
+    update();
+    const ro = new ResizeObserver(update);
+    ro.observe(el);
+
+    return () => ro.disconnect();
+  }, []);
+
+  return (
+    <div className="flex toast-mobile:w-[356px] w-full justify-center">
+      <div
+        className={cn(
+          "flex toast-mobile:w-fit w-full flex-row gap-3 rounded-lg bg-card border border-border/50 shadow-[var(--shadow-float)] p-3",
+          multiLine ? "items-start" : "items-center"
+        )}
+        data-testid="toast"
+        key={id}
+      >
+        <div
+          className={cn(
+            "data-[type=error]:text-red-600 data-[type=success]:text-green-600",
+            { "pt-1": multiLine }
+          )}
+          data-type={type}
+        >
+          {iconsByType[type]}
+        </div>
+        <div className="text-sm text-foreground" ref={descriptionRef}>
+          {description}
+        </div>
+      </div>
+    </div>
+  );
+}
+
+type ToastProps = {
+  id: string | number;
+  type: "success" | "error";
+  description: string;
+};

components/chat/visibility-selector.tsx

@@ -0,0 +1,111 @@
+"use client";
+
+import { type ReactNode, useMemo, useState } from "react";
+import { Button } from "@/components/ui/button";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import { useChatVisibility } from "@/hooks/use-chat-visibility";
+import { cn } from "@/lib/utils";
+import {
+  CheckCircleFillIcon,
+  ChevronDownIcon,
+  GlobeIcon,
+  LockIcon,
+} from "./icons";
+
+export type VisibilityType = "private" | "public";
+
+const visibilities: Array<{
+  id: VisibilityType;
+  label: string;
+  description: string;
+  icon: ReactNode;
+}> = [
+  {
+    id: "private",
+    label: "Private",
+    description: "Only you can access this chat",
+    icon: <LockIcon />,
+  },
+  {
+    id: "public",
+    label: "Public",
+    description: "Anyone with the link can access this chat",
+    icon: <GlobeIcon />,
+  },
+];
+
+export function VisibilitySelector({
+  chatId,
+  className,
+  selectedVisibilityType,
+}: {
+  chatId: string;
+  selectedVisibilityType: VisibilityType;
+} & React.ComponentProps<typeof Button>) {
+  const [open, setOpen] = useState(false);
+
+  const { visibilityType, setVisibilityType } = useChatVisibility({
+    chatId,
+    initialVisibilityType: selectedVisibilityType,
+  });
+
+  const selectedVisibility = useMemo(
+    () => visibilities.find((visibility) => visibility.id === visibilityType),
+    [visibilityType]
+  );
+
+  return (
+    <DropdownMenu onOpenChange={setOpen} open={open}>
+      <DropdownMenuTrigger
+        asChild
+        className={cn(
+          "w-fit data-[state=open]:bg-accent data-[state=open]:text-accent-foreground",
+          className
+        )}
+      >
+        <Button
+          className="gap-1.5 rounded-lg border-border/50 text-muted-foreground shadow-none transition-colors hover:text-foreground focus-visible:ring-0 focus-visible:border-border/50 active:translate-y-0"
+          data-testid="visibility-selector"
+          size="sm"
+          variant="outline"
+        >
+          {selectedVisibility?.icon}
+          <span className="md:sr-only">{selectedVisibility?.label}</span>
+          <ChevronDownIcon />
+        </Button>
+      </DropdownMenuTrigger>
+
+      <DropdownMenuContent align="start" className="min-w-[300px]">
+        {visibilities.map((visibility) => (
+          <DropdownMenuItem
+            className="group/item flex flex-row items-center justify-between gap-4"
+            data-active={visibility.id === visibilityType}
+            data-testid={`visibility-selector-item-${visibility.id}`}
+            key={visibility.id}
+            onSelect={() => {
+              setVisibilityType(visibility.id);
+              setOpen(false);
+            }}
+          >
+            <div className="flex flex-col items-start gap-1">
+              {visibility.label}
+              {visibility.description && (
+                <div className="text-muted-foreground text-xs">
+                  {visibility.description}
+                </div>
+              )}
+            </div>
+            <div className="text-foreground opacity-0 group-data-[active=true]/item:opacity-100 dark:text-foreground">
+              <CheckCircleFillIcon />
+            </div>
+          </DropdownMenuItem>
+        ))}
+      </DropdownMenuContent>
+    </DropdownMenu>
+  );
+}

components/chat/weather.tsx

@@ -0,0 +1,434 @@
+"use client";
+
+import cx from "classnames";
+import { format, isWithinInterval } from "date-fns";
+import { useEffect, useState } from "react";
+
+const SunIcon = ({ size = 40 }: { size?: number }) => (
+  <svg fill="none" height={size} viewBox="0 0 24 24" width={size}>
+    <circle cx="12" cy="12" fill="currentColor" r="5" />
+    <line stroke="currentColor" strokeWidth="2" x1="12" x2="12" y1="1" y2="3" />
+    <line
+      stroke="currentColor"
+      strokeWidth="2"
+      x1="12"
+      x2="12"
+      y1="21"
+      y2="23"
+    />
+    <line
+      stroke="currentColor"
+      strokeWidth="2"
+      x1="4.22"
+      x2="5.64"
+      y1="4.22"
+      y2="5.64"
+    />
+    <line
+      stroke="currentColor"
+      strokeWidth="2"
+      x1="18.36"
+      x2="19.78"
+      y1="18.36"
+      y2="19.78"
+    />
+    <line stroke="currentColor" strokeWidth="2" x1="1" x2="3" y1="12" y2="12" />
+    <line
+      stroke="currentColor"
+      strokeWidth="2"
+      x1="21"
+      x2="23"
+      y1="12"
+      y2="12"
+    />
+    <line
+      stroke="currentColor"
+      strokeWidth="2"
+      x1="4.22"
+      x2="5.64"
+      y1="19.78"
+      y2="18.36"
+    />
+    <line
+      stroke="currentColor"
+      strokeWidth="2"
+      x1="18.36"
+      x2="19.78"
+      y1="5.64"
+      y2="4.22"
+    />
+  </svg>
+);
+
+const MoonIcon = ({ size = 40 }: { size?: number }) => (
+  <svg fill="none" height={size} viewBox="0 0 24 24" width={size}>
+    <path
+      d="M21 12.79A9 9 0 1 1 11.21 3A7 7 0 0 0 21 12.79z"
+      fill="currentColor"
+    />
+  </svg>
+);
+
+const CloudIcon = ({ size = 24 }: { size?: number }) => (
+  <svg fill="none" height={size} viewBox="0 0 24 24" width={size}>
+    <path
+      d="M18 10h-1.26A8 8 0 1 0 9 20h9a5 5 0 0 0 0-10z"
+      fill="none"
+      stroke="currentColor"
+      strokeWidth="2"
+    />
+  </svg>
+);
+
+type WeatherAtLocation = {
+  latitude: number;
+  longitude: number;
+  generationtime_ms: number;
+  utc_offset_seconds: number;
+  timezone: string;
+  timezone_abbreviation: string;
+  elevation: number;
+  cityName?: string;
+  current_units: {
+    time: string;
+    interval: string;
+    temperature_2m: string;
+  };
+  current: {
+    time: string;
+    interval: number;
+    temperature_2m: number;
+  };
+  hourly_units: {
+    time: string;
+    temperature_2m: string;
+  };
+  hourly: {
+    time: string[];
+    temperature_2m: number[];
+  };
+  daily_units: {
+    time: string;
+    sunrise: string;
+    sunset: string;
+  };
+  daily: {
+    time: string[];
+    sunrise: string[];
+    sunset: string[];
+  };
+};
+
+const SAMPLE = {
+  latitude: 37.763_283,
+  longitude: -122.412_86,
+  generationtime_ms: 0.027_894_973_754_882_812,
+  utc_offset_seconds: 0,
+  timezone: "GMT",
+  timezone_abbreviation: "GMT",
+  elevation: 18,
+  current_units: { time: "iso8601", interval: "seconds", temperature_2m: "°C" },
+  current: { time: "2024-10-07T19:30", interval: 900, temperature_2m: 29.3 },
+  hourly_units: { time: "iso8601", temperature_2m: "°C" },
+  hourly: {
+    time: [
+      "2024-10-07T00:00",
+      "2024-10-07T01:00",
+      "2024-10-07T02:00",
+      "2024-10-07T03:00",
+      "2024-10-07T04:00",
+      "2024-10-07T05:00",
+      "2024-10-07T06:00",
+      "2024-10-07T07:00",
+      "2024-10-07T08:00",
+      "2024-10-07T09:00",
+      "2024-10-07T10:00",
+      "2024-10-07T11:00",
+      "2024-10-07T12:00",
+      "2024-10-07T13:00",
+      "2024-10-07T14:00",
+      "2024-10-07T15:00",
+      "2024-10-07T16:00",
+      "2024-10-07T17:00",
+      "2024-10-07T18:00",
+      "2024-10-07T19:00",
+      "2024-10-07T20:00",
+      "2024-10-07T21:00",
+      "2024-10-07T22:00",
+      "2024-10-07T23:00",
+      "2024-10-08T00:00",
+      "2024-10-08T01:00",
+      "2024-10-08T02:00",
+      "2024-10-08T03:00",
+      "2024-10-08T04:00",
+      "2024-10-08T05:00",
+      "2024-10-08T06:00",
+      "2024-10-08T07:00",
+      "2024-10-08T08:00",
+      "2024-10-08T09:00",
+      "2024-10-08T10:00",
+      "2024-10-08T11:00",
+      "2024-10-08T12:00",
+      "2024-10-08T13:00",
+      "2024-10-08T14:00",
+      "2024-10-08T15:00",
+      "2024-10-08T16:00",
+      "2024-10-08T17:00",
+      "2024-10-08T18:00",
+      "2024-10-08T19:00",
+      "2024-10-08T20:00",
+      "2024-10-08T21:00",
+      "2024-10-08T22:00",
+      "2024-10-08T23:00",
+      "2024-10-09T00:00",
+      "2024-10-09T01:00",
+      "2024-10-09T02:00",
+      "2024-10-09T03:00",
+      "2024-10-09T04:00",
+      "2024-10-09T05:00",
+      "2024-10-09T06:00",
+      "2024-10-09T07:00",
+      "2024-10-09T08:00",
+      "2024-10-09T09:00",
+      "2024-10-09T10:00",
+      "2024-10-09T11:00",
+      "2024-10-09T12:00",
+      "2024-10-09T13:00",
+      "2024-10-09T14:00",
+      "2024-10-09T15:00",
+      "2024-10-09T16:00",
+      "2024-10-09T17:00",
+      "2024-10-09T18:00",
+      "2024-10-09T19:00",
+      "2024-10-09T20:00",
+      "2024-10-09T21:00",
+      "2024-10-09T22:00",
+      "2024-10-09T23:00",
+      "2024-10-10T00:00",
+      "2024-10-10T01:00",
+      "2024-10-10T02:00",
+      "2024-10-10T03:00",
+      "2024-10-10T04:00",
+      "2024-10-10T05:00",
+      "2024-10-10T06:00",
+      "2024-10-10T07:00",
+      "2024-10-10T08:00",
+      "2024-10-10T09:00",
+      "2024-10-10T10:00",
+      "2024-10-10T11:00",
+      "2024-10-10T12:00",
+      "2024-10-10T13:00",
+      "2024-10-10T14:00",
+      "2024-10-10T15:00",
+      "2024-10-10T16:00",
+      "2024-10-10T17:00",
+      "2024-10-10T18:00",
+      "2024-10-10T19:00",
+      "2024-10-10T20:00",
+      "2024-10-10T21:00",
+      "2024-10-10T22:00",
+      "2024-10-10T23:00",
+      "2024-10-11T00:00",
+      "2024-10-11T01:00",
+      "2024-10-11T02:00",
+      "2024-10-11T03:00",
+    ],
+    temperature_2m: [
+      36.6, 32.8, 29.5, 28.6, 29.2, 28.2, 27.5, 26.6, 26.5, 26, 25, 23.5, 23.9,
+      24.2, 22.9, 21, 24, 28.1, 31.4, 33.9, 32.1, 28.9, 26.9, 25.2, 23, 21.1,
+      19.6, 18.6, 17.7, 16.8, 16.2, 15.5, 14.9, 14.4, 14.2, 13.7, 13.3, 12.9,
+      12.5, 13.5, 15.8, 17.7, 19.6, 21, 21.9, 22.3, 22, 20.7, 18.9, 17.9, 17.3,
+      17, 16.7, 16.2, 15.6, 15.2, 15, 15, 15.1, 14.8, 14.8, 14.9, 14.7, 14.8,
+      15.3, 16.2, 17.9, 19.6, 20.5, 21.6, 21, 20.7, 19.3, 18.7, 18.4, 17.9,
+      17.3, 17, 17, 16.8, 16.4, 16.2, 16, 15.8, 15.7, 15.4, 15.4, 16.1, 16.7,
+      17, 18.6, 19, 19.5, 19.4, 18.5, 17.9, 17.5, 16.7, 16.3, 16.1,
+    ],
+  },
+  daily_units: {
+    time: "iso8601",
+    sunrise: "iso8601",
+    sunset: "iso8601",
+  },
+  daily: {
+    time: [
+      "2024-10-07",
+      "2024-10-08",
+      "2024-10-09",
+      "2024-10-10",
+      "2024-10-11",
+    ],
+    sunrise: [
+      "2024-10-07T07:15",
+      "2024-10-08T07:16",
+      "2024-10-09T07:17",
+      "2024-10-10T07:18",
+      "2024-10-11T07:19",
+    ],
+    sunset: [
+      "2024-10-07T19:00",
+      "2024-10-08T18:58",
+      "2024-10-09T18:57",
+      "2024-10-10T18:55",
+      "2024-10-11T18:54",
+    ],
+  },
+};
+
+function n(num: number): number {
+  return Math.ceil(num);
+}
+
+export function Weather({
+  weatherAtLocation = SAMPLE,
+}: {
+  weatherAtLocation?: WeatherAtLocation;
+}) {
+  const currentHigh = Math.max(
+    ...weatherAtLocation.hourly.temperature_2m.slice(0, 24)
+  );
+  const currentLow = Math.min(
+    ...weatherAtLocation.hourly.temperature_2m.slice(0, 24)
+  );
+
+  const isDay = isWithinInterval(new Date(weatherAtLocation.current.time), {
+    start: new Date(weatherAtLocation.daily.sunrise[0]),
+    end: new Date(weatherAtLocation.daily.sunset[0]),
+  });
+
+  const [isMobile, setIsMobile] = useState(false);
+
+  useEffect(() => {
+    const handleResize = () => {
+      setIsMobile(window.innerWidth < 768);
+    };
+
+    handleResize();
+    window.addEventListener("resize", handleResize);
+
+    return () => window.removeEventListener("resize", handleResize);
+  }, []);
+
+  const hoursToShow = isMobile ? 5 : 6;
+
+  const currentTimeIndex = weatherAtLocation.hourly.time.findIndex(
+    (time) => new Date(time) >= new Date(weatherAtLocation.current.time)
+  );
+
+  const displayTimes = weatherAtLocation.hourly.time.slice(
+    currentTimeIndex,
+    currentTimeIndex + hoursToShow
+  );
+  const displayTemperatures = weatherAtLocation.hourly.temperature_2m.slice(
+    currentTimeIndex,
+    currentTimeIndex + hoursToShow
+  );
+
+  const location =
+    weatherAtLocation.cityName ||
+    `${weatherAtLocation.latitude?.toFixed(1)}°, ${weatherAtLocation.longitude?.toFixed(1)}°`;
+
+  return (
+    <div
+      className={cx(
+        "relative flex w-full flex-col gap-3 overflow-hidden rounded-2xl p-4 shadow-lg backdrop-blur-sm",
+        {
+          "bg-gradient-to-br from-sky-400 via-blue-500 to-blue-600": isDay,
+        },
+        {
+          "bg-gradient-to-br from-indigo-900 via-purple-900 to-slate-900":
+            !isDay,
+        }
+      )}
+    >
+      <div className="absolute inset-0 bg-white/10 backdrop-blur-sm" />
+
+      <div className="relative z-10">
+        <div className="mb-2 flex items-center justify-between">
+          <div className="font-medium text-white/80 text-xs">{location}</div>
+          <div className="text-white/60 text-xs">
+            {format(new Date(weatherAtLocation.current.time), "MMM d, h:mm a")}
+          </div>
+        </div>
+
+        <div className="mb-3 flex items-center justify-between">
+          <div className="flex items-center gap-3">
+            <div
+              className={cx("text-white/90", {
+                "text-yellow-200": isDay,
+                "text-blue-200": !isDay,
+              })}
+            >
+              {isDay ? <SunIcon size={32} /> : <MoonIcon size={32} />}
+            </div>
+            <div className="font-light text-3xl text-white">
+              {n(weatherAtLocation.current.temperature_2m)}
+              <span className="text-lg text-white/80">
+                {weatherAtLocation.current_units.temperature_2m}
+              </span>
+            </div>
+          </div>
+
+          <div className="text-right">
+            <div className="font-medium text-white/90 text-xs">
+              H: {n(currentHigh)}°
+            </div>
+            <div className="text-white/70 text-xs">L: {n(currentLow)}°</div>
+          </div>
+        </div>
+
+        <div className="rounded-xl bg-white/10 p-3 backdrop-blur-sm">
+          <div className="mb-2 font-medium text-white/80 text-xs">
+            Hourly Forecast
+          </div>
+          <div className="flex justify-between gap-1">
+            {displayTimes.map((time, index) => {
+              const hourTime = new Date(time);
+              const isCurrentHour =
+                hourTime.getHours() === new Date().getHours();
+
+              return (
+                <div
+                  className={cx(
+                    "flex min-w-0 flex-1 flex-col items-center gap-1 rounded-md px-1 py-1.5",
+                    {
+                      "bg-white/20": isCurrentHour,
+                    }
+                  )}
+                  key={time}
+                >
+                  <div className="font-medium text-white/70 text-xs">
+                    {index === 0 ? "Now" : format(hourTime, "ha")}
+                  </div>
+
+                  <div
+                    className={cx("text-white/60", {
+                      "text-yellow-200": isDay,
+                      "text-blue-200": !isDay,
+                    })}
+                  >
+                    <CloudIcon size={16} />
+                  </div>
+
+                  <div className="font-medium text-white text-xs">
+                    {n(displayTemperatures[index])}°
+                  </div>
+                </div>
+              );
+            })}
+          </div>
+        </div>
+
+        <div className="mt-2 flex justify-between text-white/60 text-xs">
+          <div>
+            Sunrise:{" "}
+            {format(new Date(weatherAtLocation.daily.sunrise[0]), "h:mm a")}
+          </div>
+          <div>
+            Sunset:{" "}
+            {format(new Date(weatherAtLocation.daily.sunset[0]), "h:mm a")}
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}

components/theme-provider.tsx

@@ -0,0 +1,8 @@
+"use client";
+
+import { ThemeProvider as NextThemesProvider } from "next-themes";
+import type { ThemeProviderProps } from "next-themes/dist/types";
+
+export function ThemeProvider({ children, ...props }: ThemeProviderProps) {
+  return <NextThemesProvider {...props}>{children}</NextThemesProvider>;
+}

components/ui/alert-dialog.tsx

@@ -0,0 +1,199 @@
+"use client"
+
+import * as React from "react"
+import { AlertDialog as AlertDialogPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+
+function AlertDialog({
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Root>) {
+  return <AlertDialogPrimitive.Root data-slot="alert-dialog" {...props} />
+}
+
+function AlertDialogTrigger({
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Trigger>) {
+  return (
+    <AlertDialogPrimitive.Trigger data-slot="alert-dialog-trigger" {...props} />
+  )
+}
+
+function AlertDialogPortal({
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Portal>) {
+  return (
+    <AlertDialogPrimitive.Portal data-slot="alert-dialog-portal" {...props} />
+  )
+}
+
+function AlertDialogOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Overlay>) {
+  return (
+    <AlertDialogPrimitive.Overlay
+      data-slot="alert-dialog-overlay"
+      className={cn(
+        "fixed inset-0 z-50 bg-black/80 duration-100 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogContent({
+  className,
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Content> & {
+  size?: "default" | "sm"
+}) {
+  return (
+    <AlertDialogPortal>
+      <AlertDialogOverlay />
+      <AlertDialogPrimitive.Content
+        data-slot="alert-dialog-content"
+        data-size={size}
+        className={cn(
+          "group/alert-dialog-content fixed top-1/2 left-1/2 z-50 grid w-full -translate-x-1/2 -translate-y-1/2 gap-6 rounded-lg bg-background p-6 ring-1 ring-foreground/5 duration-100 outline-none data-[size=default]:max-w-xs data-[size=sm]:max-w-xs data-[size=default]:sm:max-w-md data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      />
+    </AlertDialogPortal>
+  )
+}
+
+function AlertDialogHeader({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-header"
+      className={cn(
+        "grid grid-rows-[auto_1fr] place-items-center gap-1.5 text-center has-data-[slot=alert-dialog-media]:grid-rows-[auto_auto_1fr] has-data-[slot=alert-dialog-media]:gap-x-6 sm:group-data-[size=default]/alert-dialog-content:place-items-start sm:group-data-[size=default]/alert-dialog-content:text-left sm:group-data-[size=default]/alert-dialog-content:has-data-[slot=alert-dialog-media]:grid-rows-[auto_1fr]",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogFooter({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-footer"
+      className={cn(
+        "flex flex-col-reverse gap-2 group-data-[size=sm]/alert-dialog-content:grid group-data-[size=sm]/alert-dialog-content:grid-cols-2 sm:flex-row sm:justify-end",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogMedia({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="alert-dialog-media"
+      className={cn(
+        "mb-2 inline-flex size-16 items-center justify-center rounded-full bg-muted sm:group-data-[size=default]/alert-dialog-content:row-span-2 *:[svg:not([class*='size-'])]:size-8",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Title>) {
+  return (
+    <AlertDialogPrimitive.Title
+      data-slot="alert-dialog-title"
+      className={cn(
+        "text-lg font-medium sm:group-data-[size=default]/alert-dialog-content:group-has-data-[slot=alert-dialog-media]/alert-dialog-content:col-start-2",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Description>) {
+  return (
+    <AlertDialogPrimitive.Description
+      data-slot="alert-dialog-description"
+      className={cn(
+        "text-sm text-balance text-muted-foreground md:text-pretty *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function AlertDialogAction({
+  className,
+  variant = "default",
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Action> &
+  Pick<React.ComponentProps<typeof Button>, "variant" | "size">) {
+  return (
+    <Button variant={variant} size={size} asChild>
+      <AlertDialogPrimitive.Action
+        data-slot="alert-dialog-action"
+        className={cn(className)}
+        {...props}
+      />
+    </Button>
+  )
+}
+
+function AlertDialogCancel({
+  className,
+  variant = "outline",
+  size = "default",
+  ...props
+}: React.ComponentProps<typeof AlertDialogPrimitive.Cancel> &
+  Pick<React.ComponentProps<typeof Button>, "variant" | "size">) {
+  return (
+    <Button variant={variant} size={size} asChild>
+      <AlertDialogPrimitive.Cancel
+        data-slot="alert-dialog-cancel"
+        className={cn(className)}
+        {...props}
+      />
+    </Button>
+  )
+}
+
+export {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogMedia,
+  AlertDialogOverlay,
+  AlertDialogPortal,
+  AlertDialogTitle,
+  AlertDialogTrigger,
+}

components/ui/badge.tsx

@@ -0,0 +1,49 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+const badgeVariants = cva(
+  "group/badge inline-flex h-5 w-fit shrink-0 items-center justify-center gap-1 overflow-hidden rounded-4xl border border-transparent px-2 py-0.5 text-xs font-medium whitespace-nowrap transition-all focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 aria-invalid:border-destructive aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 [&>svg]:pointer-events-none [&>svg]:size-3!",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground [a]:hover:bg-primary/80",
+        secondary:
+          "bg-secondary text-secondary-foreground [a]:hover:bg-secondary/80",
+        destructive:
+          "bg-destructive/10 text-destructive focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:focus-visible:ring-destructive/40 [a]:hover:bg-destructive/20",
+        outline:
+          "border-border bg-input/30 text-foreground [a]:hover:bg-muted [a]:hover:text-muted-foreground",
+        ghost:
+          "hover:bg-muted hover:text-muted-foreground dark:hover:bg-muted/50",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function Badge({
+  className,
+  variant = "default",
+  asChild = false,
+  ...props
+}: React.ComponentProps<"span"> &
+  VariantProps<typeof badgeVariants> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "span"
+
+  return (
+    <Comp
+      data-slot="badge"
+      data-variant={variant}
+      className={cn(badgeVariants({ variant }), className)}
+      {...props}
+    />
+  )
+}
+
+export { Badge, badgeVariants }

components/ui/button-group.tsx

@@ -0,0 +1,83 @@
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Separator } from "@/components/ui/separator"
+
+const buttonGroupVariants = cva(
+  "flex w-fit items-stretch *:focus-visible:relative *:focus-visible:z-10 has-[>[data-slot=button-group]]:gap-2 has-[select[aria-hidden=true]:last-child]:[&>[data-slot=select-trigger]:last-of-type]:rounded-r-4xl [&>[data-slot=select-trigger]:not([class*='w-'])]:w-fit [&>input]:flex-1",
+  {
+    variants: {
+      orientation: {
+        horizontal:
+          "[&>*:not(:first-child)]:rounded-l-none [&>*:not(:first-child)]:border-l-0 [&>*:not(:last-child)]:rounded-r-none [&>[data-slot]:not(:has(~[data-slot]))]:rounded-r-4xl!",
+        vertical:
+          "flex-col [&>*:not(:first-child)]:rounded-t-none [&>*:not(:first-child)]:border-t-0 [&>*:not(:last-child)]:rounded-b-none [&>[data-slot]:not(:has(~[data-slot]))]:rounded-b-4xl!",
+      },
+    },
+    defaultVariants: {
+      orientation: "horizontal",
+    },
+  }
+)
+
+function ButtonGroup({
+  className,
+  orientation,
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof buttonGroupVariants>) {
+  return (
+    <div
+      role="group"
+      data-slot="button-group"
+      data-orientation={orientation}
+      className={cn(buttonGroupVariants({ orientation }), className)}
+      {...props}
+    />
+  )
+}
+
+function ButtonGroupText({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"div"> & {
+  asChild?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "div"
+
+  return (
+    <Comp
+      className={cn(
+        "flex items-center gap-2 rounded-4xl border bg-muted px-2.5 text-sm font-medium [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function ButtonGroupSeparator({
+  className,
+  orientation = "vertical",
+  ...props
+}: React.ComponentProps<typeof Separator>) {
+  return (
+    <Separator
+      data-slot="button-group-separator"
+      orientation={orientation}
+      className={cn(
+        "relative self-stretch bg-input data-horizontal:mx-px data-horizontal:w-auto data-vertical:my-px data-vertical:h-auto",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  ButtonGroup,
+  ButtonGroupSeparator,
+  ButtonGroupText,
+  buttonGroupVariants,
+}

components/ui/button.tsx

@@ -0,0 +1,65 @@
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+const buttonVariants = cva(
+  "group/button inline-flex shrink-0 items-center justify-center rounded-lg border border-transparent bg-clip-padding text-sm font-medium whitespace-nowrap transition-all outline-none select-none active:translate-y-px disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+  {
+    variants: {
+      variant: {
+        default: "bg-primary text-primary-foreground hover:bg-primary/80",
+        outline:
+          "border-border bg-input/30 hover:bg-input/50 hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground",
+        secondary:
+          "bg-secondary text-secondary-foreground hover:bg-secondary/80 aria-expanded:bg-secondary aria-expanded:text-secondary-foreground",
+        ghost:
+          "hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:hover:bg-muted/50",
+        destructive:
+          "bg-destructive/10 text-destructive hover:bg-destructive/20 focus-visible:border-destructive/40 focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:hover:bg-destructive/30 dark:focus-visible:ring-destructive/40",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+      size: {
+        default:
+          "h-9 gap-1.5 px-3 has-data-[icon=inline-end]:pr-2.5 has-data-[icon=inline-start]:pl-2.5",
+        xs: "h-6 gap-1 px-2.5 text-xs has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2 [&_svg:not([class*='size-'])]:size-3",
+        sm: "h-8 gap-1 px-3 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2",
+        lg: "h-10 gap-1.5 px-4 has-data-[icon=inline-end]:pr-3 has-data-[icon=inline-start]:pl-3",
+        icon: "size-9",
+        "icon-xs": "size-6 [&_svg:not([class*='size-'])]:size-3",
+        "icon-sm": "size-8",
+        "icon-lg": "size-10",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Button({
+  className,
+  variant = "default",
+  size = "default",
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> &
+  VariantProps<typeof buttonVariants> & {
+    asChild?: boolean
+  }) {
+  const Comp = asChild ? Slot.Root : "button"
+
+  return (
+    <Comp
+      data-slot="button"
+      data-variant={variant}
+      data-size={size}
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+export { Button, buttonVariants }

components/ui/collapsible.tsx

@@ -0,0 +1,33 @@
+"use client"
+
+import { Collapsible as CollapsiblePrimitive } from "radix-ui"
+
+function Collapsible({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.Root>) {
+  return <CollapsiblePrimitive.Root data-slot="collapsible" {...props} />
+}
+
+function CollapsibleTrigger({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.CollapsibleTrigger>) {
+  return (
+    <CollapsiblePrimitive.CollapsibleTrigger
+      data-slot="collapsible-trigger"
+      {...props}
+    />
+  )
+}
+
+function CollapsibleContent({
+  ...props
+}: React.ComponentProps<typeof CollapsiblePrimitive.CollapsibleContent>) {
+  return (
+    <CollapsiblePrimitive.CollapsibleContent
+      data-slot="collapsible-content"
+      {...props}
+    />
+  )
+}
+
+export { Collapsible, CollapsibleTrigger, CollapsibleContent }

components/ui/command.tsx

@@ -0,0 +1,194 @@
+"use client"
+
+import * as React from "react"
+import { Command as CommandPrimitive } from "cmdk"
+
+import { cn } from "@/lib/utils"
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog"
+import {
+  InputGroup,
+  InputGroupAddon,
+} from "@/components/ui/input-group"
+import { SearchIcon } from "lucide-react"
+
+function Command({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive>) {
+  return (
+    <CommandPrimitive
+      data-slot="command"
+      className={cn(
+        "flex size-full flex-col overflow-hidden rounded-4xl bg-popover p-1 text-popover-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CommandDialog({
+  title = "Command Palette",
+  description = "Search for a command to run...",
+  children,
+  className,
+  showCloseButton = false,
+  ...props
+}: React.ComponentProps<typeof Dialog> & {
+  title?: string
+  description?: string
+  className?: string
+  showCloseButton?: boolean
+}) {
+  return (
+    <Dialog {...props}>
+      <DialogHeader className="sr-only">
+        <DialogTitle>{title}</DialogTitle>
+        <DialogDescription>{description}</DialogDescription>
+      </DialogHeader>
+      <DialogContent
+        className={cn(
+          "top-1/3 translate-y-0 overflow-hidden rounded-4xl! p-0",
+          className
+        )}
+        showCloseButton={showCloseButton}
+      >
+        {children}
+      </DialogContent>
+    </Dialog>
+  )
+}
+
+function CommandInput({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Input>) {
+  return (
+    <div data-slot="command-input-wrapper" className="p-1 pb-0">
+      <InputGroup className="h-9 bg-input/30">
+        <CommandPrimitive.Input
+          data-slot="command-input"
+          className={cn(
+            "w-full text-sm outline-hidden disabled:cursor-not-allowed disabled:opacity-50",
+            className
+          )}
+          {...props}
+        />
+        <InputGroupAddon>
+          <SearchIcon className="size-4 shrink-0 opacity-50" />
+        </InputGroupAddon>
+      </InputGroup>
+    </div>
+  )
+}
+
+function CommandList({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.List>) {
+  return (
+    <CommandPrimitive.List
+      data-slot="command-list"
+      className={cn(
+        "no-scrollbar max-h-72 scroll-py-1 overflow-x-hidden overflow-y-auto outline-none",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CommandEmpty({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Empty>) {
+  return (
+    <CommandPrimitive.Empty
+      data-slot="command-empty"
+      className={cn("py-6 text-center text-sm", className)}
+      {...props}
+    />
+  )
+}
+
+function CommandGroup({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Group>) {
+  return (
+    <CommandPrimitive.Group
+      data-slot="command-group"
+      className={cn(
+        "overflow-hidden p-1 text-foreground **:[[cmdk-group-heading]]:px-3 **:[[cmdk-group-heading]]:py-2 **:[[cmdk-group-heading]]:text-xs **:[[cmdk-group-heading]]:font-medium **:[[cmdk-group-heading]]:text-muted-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function CommandSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Separator>) {
+  return (
+    <CommandPrimitive.Separator
+      data-slot="command-separator"
+      className={cn("my-1 h-px bg-border/50", className)}
+      {...props}
+    />
+  )
+}
+
+function CommandItem({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof CommandPrimitive.Item>) {
+  return (
+    <CommandPrimitive.Item
+      data-slot="command-item"
+      className={cn(
+        "group/command-item relative flex cursor-default items-center gap-2 rounded-lg px-3 py-2 text-sm outline-hidden select-none in-data-[slot=dialog-content]:rounded-2xl data-[disabled=true]:pointer-events-none data-[disabled=true]:opacity-50 data-selected:text-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 data-selected:*:[svg]:text-foreground",
+        className
+      )}
+      {...props}
+    >
+      {children}
+    </CommandPrimitive.Item>
+  )
+}
+
+function CommandShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="command-shortcut"
+      className={cn(
+        "ml-auto text-xs tracking-widest text-muted-foreground group-data-selected/command-item:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Command,
+  CommandDialog,
+  CommandInput,
+  CommandList,
+  CommandEmpty,
+  CommandGroup,
+  CommandItem,
+  CommandShortcut,
+  CommandSeparator,
+}

components/ui/dialog.tsx

@@ -0,0 +1,165 @@
+"use client"
+
+import * as React from "react"
+import { Dialog as DialogPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { XIcon } from "lucide-react"
+
+function Dialog({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Root>) {
+  return <DialogPrimitive.Root data-slot="dialog" {...props} />
+}
+
+function DialogTrigger({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Trigger>) {
+  return <DialogPrimitive.Trigger data-slot="dialog-trigger" {...props} />
+}
+
+function DialogPortal({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Portal>) {
+  return <DialogPrimitive.Portal data-slot="dialog-portal" {...props} />
+}
+
+function DialogClose({
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Close>) {
+  return <DialogPrimitive.Close data-slot="dialog-close" {...props} />
+}
+
+function DialogOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Overlay>) {
+  return (
+    <DialogPrimitive.Overlay
+      data-slot="dialog-overlay"
+      className={cn(
+        "fixed inset-0 isolate z-50 bg-black/80 duration-100 supports-backdrop-filter:backdrop-blur-xs data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DialogContent({
+  className,
+  children,
+  showCloseButton = true,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Content> & {
+  showCloseButton?: boolean
+}) {
+  return (
+    <DialogPortal>
+      <DialogOverlay />
+      <DialogPrimitive.Content
+        data-slot="dialog-content"
+        className={cn(
+          "fixed top-1/2 left-1/2 z-50 grid w-full max-w-[calc(100%-2rem)] -translate-x-1/2 -translate-y-1/2 gap-6 rounded-4xl bg-background p-6 text-sm ring-1 ring-foreground/5 duration-100 outline-none sm:max-w-md data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        {showCloseButton && (
+          <DialogPrimitive.Close data-slot="dialog-close" asChild>
+            <Button
+              variant="ghost"
+              className="absolute top-4 right-4"
+              size="icon-sm"
+            >
+              <XIcon
+              />
+              <span className="sr-only">Close</span>
+            </Button>
+          </DialogPrimitive.Close>
+        )}
+      </DialogPrimitive.Content>
+    </DialogPortal>
+  )
+}
+
+function DialogHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="dialog-header"
+      className={cn("flex flex-col gap-2", className)}
+      {...props}
+    />
+  )
+}
+
+function DialogFooter({
+  className,
+  showCloseButton = false,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  showCloseButton?: boolean
+}) {
+  return (
+    <div
+      data-slot="dialog-footer"
+      className={cn(
+        "flex flex-col-reverse gap-2 sm:flex-row sm:justify-end",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      {showCloseButton && (
+        <DialogPrimitive.Close asChild>
+          <Button variant="outline">Close</Button>
+        </DialogPrimitive.Close>
+      )}
+    </div>
+  )
+}
+
+function DialogTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Title>) {
+  return (
+    <DialogPrimitive.Title
+      data-slot="dialog-title"
+      className={cn("text-base leading-none font-medium", className)}
+      {...props}
+    />
+  )
+}
+
+function DialogDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof DialogPrimitive.Description>) {
+  return (
+    <DialogPrimitive.Description
+      data-slot="dialog-description"
+      className={cn(
+        "text-sm text-muted-foreground *:[a]:underline *:[a]:underline-offset-3 *:[a]:hover:text-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogOverlay,
+  DialogPortal,
+  DialogTitle,
+  DialogTrigger,
+}

components/ui/dropdown-menu.tsx

@@ -0,0 +1,269 @@
+"use client"
+
+import * as React from "react"
+import { DropdownMenu as DropdownMenuPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { CheckIcon, ChevronRightIcon } from "lucide-react"
+
+function DropdownMenu({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Root>) {
+  return <DropdownMenuPrimitive.Root data-slot="dropdown-menu" {...props} />
+}
+
+function DropdownMenuPortal({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Portal>) {
+  return (
+    <DropdownMenuPrimitive.Portal data-slot="dropdown-menu-portal" {...props} />
+  )
+}
+
+function DropdownMenuTrigger({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Trigger>) {
+  return (
+    <DropdownMenuPrimitive.Trigger
+      data-slot="dropdown-menu-trigger"
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuContent({
+  className,
+  align = "start",
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Content>) {
+  return (
+    <DropdownMenuPrimitive.Portal>
+      <DropdownMenuPrimitive.Content
+        data-slot="dropdown-menu-content"
+        sideOffset={sideOffset}
+        align={align}
+        className={cn("z-50 max-h-(--radix-dropdown-menu-content-available-height) w-(--radix-dropdown-menu-trigger-width) min-w-48 origin-(--radix-dropdown-menu-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-lg bg-popover p-1 text-popover-foreground shadow-2xl ring-1 ring-foreground/5 duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-[state=closed]:overflow-hidden dark:ring-foreground/10 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
+        {...props}
+      />
+    </DropdownMenuPrimitive.Portal>
+  )
+}
+
+function DropdownMenuGroup({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Group>) {
+  return (
+    <DropdownMenuPrimitive.Group data-slot="dropdown-menu-group" {...props} />
+  )
+}
+
+function DropdownMenuItem({
+  className,
+  inset,
+  variant = "default",
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Item> & {
+  inset?: boolean
+  variant?: "default" | "destructive"
+}) {
+  return (
+    <DropdownMenuPrimitive.Item
+      data-slot="dropdown-menu-item"
+      data-inset={inset}
+      data-variant={variant}
+      className={cn(
+        "group/dropdown-menu-item relative flex cursor-default items-center gap-2.5 rounded-lg px-3 py-2 text-sm outline-hidden select-none transition-colors duration-150 focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-9.5 data-[variant=destructive]:focus:bg-destructive/10 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuCheckboxItem({
+  className,
+  children,
+  checked,
+  inset,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.CheckboxItem> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.CheckboxItem
+      data-slot="dropdown-menu-checkbox-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-2.5 rounded-xl py-2 pr-8 pl-3 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-9.5 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      checked={checked}
+      {...props}
+    >
+      <span
+        className="pointer-events-none absolute right-2 flex items-center justify-center"
+        data-slot="dropdown-menu-checkbox-item-indicator"
+      >
+        <DropdownMenuPrimitive.ItemIndicator>
+          <CheckIcon
+          />
+        </DropdownMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </DropdownMenuPrimitive.CheckboxItem>
+  )
+}
+
+function DropdownMenuRadioGroup({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioGroup>) {
+  return (
+    <DropdownMenuPrimitive.RadioGroup
+      data-slot="dropdown-menu-radio-group"
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuRadioItem({
+  className,
+  children,
+  inset,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.RadioItem> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.RadioItem
+      data-slot="dropdown-menu-radio-item"
+      data-inset={inset}
+      className={cn(
+        "relative flex cursor-default items-center gap-2.5 rounded-xl py-2 pr-8 pl-3 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground focus:**:text-accent-foreground data-inset:pl-9.5 data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <span
+        className="pointer-events-none absolute right-2 flex items-center justify-center"
+        data-slot="dropdown-menu-radio-item-indicator"
+      >
+        <DropdownMenuPrimitive.ItemIndicator>
+          <CheckIcon
+          />
+        </DropdownMenuPrimitive.ItemIndicator>
+      </span>
+      {children}
+    </DropdownMenuPrimitive.RadioItem>
+  )
+}
+
+function DropdownMenuLabel({
+  className,
+  inset,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Label> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.Label
+      data-slot="dropdown-menu-label"
+      data-inset={inset}
+      className={cn(
+        "px-3 py-2.5 text-xs text-muted-foreground data-inset:pl-9.5",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Separator>) {
+  return (
+    <DropdownMenuPrimitive.Separator
+      data-slot="dropdown-menu-separator"
+      className={cn("-mx-1 my-1 h-px bg-border/50", className)}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuShortcut({
+  className,
+  ...props
+}: React.ComponentProps<"span">) {
+  return (
+    <span
+      data-slot="dropdown-menu-shortcut"
+      className={cn(
+        "ml-auto text-xs tracking-widest text-muted-foreground group-focus/dropdown-menu-item:text-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function DropdownMenuSub({
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.Sub>) {
+  return <DropdownMenuPrimitive.Sub data-slot="dropdown-menu-sub" {...props} />
+}
+
+function DropdownMenuSubTrigger({
+  className,
+  inset,
+  children,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.SubTrigger> & {
+  inset?: boolean
+}) {
+  return (
+    <DropdownMenuPrimitive.SubTrigger
+      data-slot="dropdown-menu-sub-trigger"
+      data-inset={inset}
+      className={cn(
+        "flex cursor-default items-center gap-2 rounded-xl px-3 py-2 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-inset:pl-9.5 data-open:bg-accent data-open:text-accent-foreground [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <ChevronRightIcon className="ml-auto" />
+    </DropdownMenuPrimitive.SubTrigger>
+  )
+}
+
+function DropdownMenuSubContent({
+  className,
+  ...props
+}: React.ComponentProps<typeof DropdownMenuPrimitive.SubContent>) {
+  return (
+    <DropdownMenuPrimitive.SubContent
+      data-slot="dropdown-menu-sub-content"
+      className={cn("z-50 min-w-36 origin-(--radix-dropdown-menu-content-transform-origin) overflow-hidden rounded-lg bg-popover p-1 text-popover-foreground shadow-2xl ring-1 ring-foreground/5 duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", className )}
+      {...props}
+    />
+  )
+}
+
+export {
+  DropdownMenu,
+  DropdownMenuPortal,
+  DropdownMenuTrigger,
+  DropdownMenuContent,
+  DropdownMenuGroup,
+  DropdownMenuLabel,
+  DropdownMenuItem,
+  DropdownMenuCheckboxItem,
+  DropdownMenuRadioGroup,
+  DropdownMenuRadioItem,
+  DropdownMenuSeparator,
+  DropdownMenuShortcut,
+  DropdownMenuSub,
+  DropdownMenuSubTrigger,
+  DropdownMenuSubContent,
+}

components/ui/hover-card.tsx

@@ -0,0 +1,44 @@
+"use client"
+
+import * as React from "react"
+import { HoverCard as HoverCardPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function HoverCard({
+  ...props
+}: React.ComponentProps<typeof HoverCardPrimitive.Root>) {
+  return <HoverCardPrimitive.Root data-slot="hover-card" {...props} />
+}
+
+function HoverCardTrigger({
+  ...props
+}: React.ComponentProps<typeof HoverCardPrimitive.Trigger>) {
+  return (
+    <HoverCardPrimitive.Trigger data-slot="hover-card-trigger" {...props} />
+  )
+}
+
+function HoverCardContent({
+  className,
+  align = "center",
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof HoverCardPrimitive.Content>) {
+  return (
+    <HoverCardPrimitive.Portal data-slot="hover-card-portal">
+      <HoverCardPrimitive.Content
+        data-slot="hover-card-content"
+        align={align}
+        sideOffset={sideOffset}
+        className={cn(
+          "z-50 w-72 origin-(--radix-hover-card-content-transform-origin) rounded-2xl bg-popover p-4 text-sm text-popover-foreground shadow-2xl ring-1 ring-foreground/5 outline-hidden duration-100 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      />
+    </HoverCardPrimitive.Portal>
+  )
+}
+
+export { HoverCard, HoverCardTrigger, HoverCardContent }

components/ui/input-group.tsx

@@ -0,0 +1,155 @@
+"use client"
+
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { Input } from "@/components/ui/input"
+import { Textarea } from "@/components/ui/textarea"
+
+function InputGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="input-group"
+      role="group"
+      className={cn(
+        "group/input-group relative flex h-9 w-full min-w-0 items-center rounded-4xl border border-input bg-input/30 transition-colors outline-none in-data-[slot=combobox-content]:focus-within:border-inherit in-data-[slot=combobox-content]:focus-within:ring-0 has-data-[align=block-end]:rounded-2xl has-data-[align=block-start]:rounded-2xl has-[[data-slot=input-group-control]:focus-visible]:border-ring has-[[data-slot=input-group-control]:focus-visible]:ring-[3px] has-[[data-slot=input-group-control]:focus-visible]:ring-ring/50 has-[[data-slot][aria-invalid=true]]:border-destructive has-[[data-slot][aria-invalid=true]]:ring-[3px] has-[[data-slot][aria-invalid=true]]:ring-destructive/20 has-[textarea]:rounded-xl has-[>[data-align=block-end]]:h-auto has-[>[data-align=block-end]]:flex-col has-[>[data-align=block-start]]:h-auto has-[>[data-align=block-start]]:flex-col has-[>textarea]:h-auto dark:has-[[data-slot][aria-invalid=true]]:ring-destructive/40 has-[>[data-align=block-end]]:[&>input]:pt-3 has-[>[data-align=block-start]]:[&>input]:pb-3 has-[>[data-align=inline-end]]:[&>input]:pr-1.5 has-[>[data-align=inline-start]]:[&>input]:pl-1.5",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+const inputGroupAddonVariants = cva(
+  "flex h-auto cursor-text items-center justify-center gap-2 py-2 text-sm font-medium text-muted-foreground select-none group-data-[disabled=true]/input-group:opacity-50 **:data-[slot=kbd]:rounded-4xl **:data-[slot=kbd]:bg-muted-foreground/10 **:data-[slot=kbd]:px-1.5 [&>svg:not([class*='size-'])]:size-4",
+  {
+    variants: {
+      align: {
+        "inline-start":
+          "order-first pl-3 has-[>button]:-ml-1 has-[>kbd]:ml-[-0.15rem]",
+        "inline-end":
+          "order-last pr-3 has-[>button]:-mr-1 has-[>kbd]:mr-[-0.15rem]",
+        "block-start":
+          "order-first w-full justify-start px-3 pt-3 group-has-[>input]/input-group:pt-3 [.border-b]:pb-3",
+        "block-end":
+          "order-last w-full justify-start px-3 pb-3 group-has-[>input]/input-group:pb-3 [.border-t]:pt-3",
+      },
+    },
+    defaultVariants: {
+      align: "inline-start",
+    },
+  }
+)
+
+function InputGroupAddon({
+  className,
+  align = "inline-start",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof inputGroupAddonVariants>) {
+  return (
+    <div
+      role="group"
+      data-slot="input-group-addon"
+      data-align={align}
+      className={cn(inputGroupAddonVariants({ align }), className)}
+      onClick={(e) => {
+        if ((e.target as HTMLElement).closest("button")) {
+          return
+        }
+        e.currentTarget.parentElement?.querySelector("input")?.focus()
+      }}
+      {...props}
+    />
+  )
+}
+
+const inputGroupButtonVariants = cva(
+  "flex items-center gap-2 rounded-4xl text-sm shadow-none",
+  {
+    variants: {
+      size: {
+        xs: "h-6 gap-1 px-1.5 [&>svg:not([class*='size-'])]:size-3.5",
+        sm: "",
+        "icon-xs": "size-6 p-0 has-[>svg]:p-0",
+        "icon-sm": "size-8 p-0 has-[>svg]:p-0",
+      },
+    },
+    defaultVariants: {
+      size: "xs",
+    },
+  }
+)
+
+function InputGroupButton({
+  className,
+  type = "button",
+  variant = "ghost",
+  size = "xs",
+  ...props
+}: Omit<React.ComponentProps<typeof Button>, "size"> &
+  VariantProps<typeof inputGroupButtonVariants>) {
+  return (
+    <Button
+      type={type}
+      data-size={size}
+      variant={variant}
+      className={cn(inputGroupButtonVariants({ size }), className)}
+      {...props}
+    />
+  )
+}
+
+function InputGroupText({ className, ...props }: React.ComponentProps<"span">) {
+  return (
+    <span
+      className={cn(
+        "flex items-center gap-2 text-sm text-muted-foreground [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function InputGroupInput({
+  className,
+  ...props
+}: React.ComponentProps<"input">) {
+  return (
+    <Input
+      data-slot="input-group-control"
+      className={cn(
+        "flex-1 rounded-none border-0 bg-transparent shadow-none ring-0 focus-visible:ring-0 aria-invalid:ring-0 dark:bg-transparent",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function InputGroupTextarea({
+  className,
+  ...props
+}: React.ComponentProps<"textarea">) {
+  return (
+    <Textarea
+      data-slot="input-group-control"
+      className={cn(
+        "flex-1 resize-none rounded-none border-0 bg-transparent py-2 shadow-none ring-0 focus-visible:ring-0 aria-invalid:ring-0 dark:bg-transparent",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  InputGroup,
+  InputGroupAddon,
+  InputGroupButton,
+  InputGroupText,
+  InputGroupInput,
+  InputGroupTextarea,
+}

components/ui/input.tsx

@@ -0,0 +1,19 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Input({ className, type, ...props }: React.ComponentProps<"input">) {
+  return (
+    <input
+      type={type}
+      data-slot="input"
+      className={cn(
+        "h-9 w-full min-w-0 rounded-4xl border border-input bg-input/30 px-3 py-1 text-base transition-colors outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium file:text-foreground placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-[3px] aria-invalid:ring-destructive/20 md:text-sm dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Input }

components/ui/label.tsx

@@ -0,0 +1,24 @@
+"use client"
+
+import * as React from "react"
+import { Label as LabelPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Label({
+  className,
+  ...props
+}: React.ComponentProps<typeof LabelPrimitive.Root>) {
+  return (
+    <LabelPrimitive.Root
+      data-slot="label"
+      className={cn(
+        "flex items-center gap-2 text-sm leading-none font-medium select-none group-data-[disabled=true]:pointer-events-none group-data-[disabled=true]:opacity-50 peer-disabled:cursor-not-allowed peer-disabled:opacity-50",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Label }

components/ui/popover.tsx

@@ -0,0 +1,40 @@
+"use client";
+
+import { Popover } from "radix-ui";
+import { cn } from "@/lib/utils";
+
+function PopoverRoot({ ...props }: React.ComponentProps<typeof Popover.Root>) {
+  return <Popover.Root data-slot="popover" {...props} />;
+}
+
+function PopoverTrigger({ ...props }: React.ComponentProps<typeof Popover.Trigger>) {
+  return <Popover.Trigger data-slot="popover-trigger" {...props} />;
+}
+
+function PopoverAnchor({ ...props }: React.ComponentProps<typeof Popover.Anchor>) {
+  return <Popover.Anchor data-slot="popover-anchor" {...props} />;
+}
+
+function PopoverContent({
+  className,
+  align = "center",
+  sideOffset = 4,
+  ...props
+}: React.ComponentProps<typeof Popover.Content>) {
+  return (
+    <Popover.Portal>
+      <Popover.Content
+        align={align}
+        className={cn(
+          "z-50 w-72 rounded-xl border border-border/60 bg-card/95 p-4 shadow-[var(--shadow-float)] backdrop-blur-xl outline-hidden data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+          className
+        )}
+        data-slot="popover-content"
+        sideOffset={sideOffset}
+        {...props}
+      />
+    </Popover.Portal>
+  );
+}
+
+export { PopoverRoot as Popover, PopoverTrigger, PopoverContent, PopoverAnchor };

components/ui/scroll-area.tsx

@@ -0,0 +1,55 @@
+"use client"
+
+import * as React from "react"
+import { ScrollArea as ScrollAreaPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function ScrollArea({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof ScrollAreaPrimitive.Root>) {
+  return (
+    <ScrollAreaPrimitive.Root
+      data-slot="scroll-area"
+      className={cn("relative", className)}
+      {...props}
+    >
+      <ScrollAreaPrimitive.Viewport
+        data-slot="scroll-area-viewport"
+        className="size-full rounded-[inherit] transition-[color,box-shadow] outline-none focus-visible:ring-[3px] focus-visible:ring-ring/50 focus-visible:outline-1"
+      >
+        {children}
+      </ScrollAreaPrimitive.Viewport>
+      <ScrollBar />
+      <ScrollAreaPrimitive.Corner />
+    </ScrollAreaPrimitive.Root>
+  )
+}
+
+function ScrollBar({
+  className,
+  orientation = "vertical",
+  ...props
+}: React.ComponentProps<typeof ScrollAreaPrimitive.ScrollAreaScrollbar>) {
+  return (
+    <ScrollAreaPrimitive.ScrollAreaScrollbar
+      data-slot="scroll-area-scrollbar"
+      data-orientation={orientation}
+      orientation={orientation}
+      className={cn(
+        "flex touch-none p-px transition-colors select-none data-horizontal:h-2.5 data-horizontal:flex-col data-horizontal:border-t data-horizontal:border-t-transparent data-vertical:h-full data-vertical:w-2.5 data-vertical:border-l data-vertical:border-l-transparent",
+        className
+      )}
+      {...props}
+    >
+      <ScrollAreaPrimitive.ScrollAreaThumb
+        data-slot="scroll-area-thumb"
+        className="relative flex-1 rounded-full bg-border"
+      />
+    </ScrollAreaPrimitive.ScrollAreaScrollbar>
+  )
+}
+
+export { ScrollArea, ScrollBar }

components/ui/select.tsx

@@ -0,0 +1,195 @@
+"use client"
+
+import * as React from "react"
+import { Select as SelectPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { ChevronDownIcon, CheckIcon, ChevronUpIcon } from "lucide-react"
+
+function Select({
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Root>) {
+  return <SelectPrimitive.Root data-slot="select" {...props} />
+}
+
+function SelectGroup({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Group>) {
+  return (
+    <SelectPrimitive.Group
+      data-slot="select-group"
+      className={cn("scroll-my-1 p-1", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectValue({
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Value>) {
+  return <SelectPrimitive.Value data-slot="select-value" {...props} />
+}
+
+function SelectTrigger({
+  className,
+  size = "default",
+  children,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Trigger> & {
+  size?: "sm" | "default"
+}) {
+  return (
+    <SelectPrimitive.Trigger
+      data-slot="select-trigger"
+      data-size={size}
+      className={cn(
+        "flex w-fit items-center justify-between gap-1.5 rounded-4xl border border-input bg-input/30 px-3 py-2 text-sm whitespace-nowrap transition-colors outline-none focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-[3px] aria-invalid:ring-destructive/20 data-placeholder:text-muted-foreground data-[size=default]:h-9 data-[size=sm]:h-8 *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-1.5 dark:hover:bg-input/50 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      {children}
+      <SelectPrimitive.Icon asChild>
+        <ChevronDownIcon className="pointer-events-none size-4 text-muted-foreground" />
+      </SelectPrimitive.Icon>
+    </SelectPrimitive.Trigger>
+  )
+}
+
+function SelectContent({
+  className,
+  children,
+  position = "item-aligned",
+  align = "center",
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Content>) {
+  return (
+    <SelectPrimitive.Portal>
+      <SelectPrimitive.Content
+        data-slot="select-content"
+        data-align-trigger={position === "item-aligned"}
+        className={cn("relative z-50 max-h-(--radix-select-content-available-height) min-w-36 origin-(--radix-select-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-2xl bg-popover text-popover-foreground shadow-2xl ring-1 ring-foreground/5 duration-100 data-[align-trigger=true]:animate-none data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95", position ==="popper"&&"data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1", className )}
+        position={position}
+        align={align}
+        {...props}
+      >
+        <SelectScrollUpButton />
+        <SelectPrimitive.Viewport
+          data-position={position}
+          className={cn(
+            "data-[position=popper]:h-(--radix-select-trigger-height) data-[position=popper]:w-full data-[position=popper]:min-w-(--radix-select-trigger-width)",
+            position === "popper" && ""
+          )}
+        >
+          {children}
+        </SelectPrimitive.Viewport>
+        <SelectScrollDownButton />
+      </SelectPrimitive.Content>
+    </SelectPrimitive.Portal>
+  )
+}
+
+function SelectLabel({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Label>) {
+  return (
+    <SelectPrimitive.Label
+      data-slot="select-label"
+      className={cn("px-3 py-2.5 text-xs text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function SelectItem({
+  className,
+  children,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Item>) {
+  return (
+    <SelectPrimitive.Item
+      data-slot="select-item"
+      className={cn(
+        "relative flex w-full cursor-default items-center gap-2.5 rounded-xl py-2 pr-8 pl-3 text-sm outline-hidden select-none focus:bg-accent focus:text-accent-foreground not-data-[variant=destructive]:focus:**:text-accent-foreground data-disabled:pointer-events-none data-disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
+        className
+      )}
+      {...props}
+    >
+      <span className="pointer-events-none absolute right-2 flex size-4 items-center justify-center">
+        <SelectPrimitive.ItemIndicator>
+          <CheckIcon className="pointer-events-none" />
+        </SelectPrimitive.ItemIndicator>
+      </span>
+      <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
+    </SelectPrimitive.Item>
+  )
+}
+
+function SelectSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.Separator>) {
+  return (
+    <SelectPrimitive.Separator
+      data-slot="select-separator"
+      className={cn(
+        "pointer-events-none -mx-1 my-1 h-px bg-border/50",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SelectScrollUpButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollUpButton>) {
+  return (
+    <SelectPrimitive.ScrollUpButton
+      data-slot="select-scroll-up-button"
+      className={cn(
+        "z-10 flex cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <ChevronUpIcon
+      />
+    </SelectPrimitive.ScrollUpButton>
+  )
+}
+
+function SelectScrollDownButton({
+  className,
+  ...props
+}: React.ComponentProps<typeof SelectPrimitive.ScrollDownButton>) {
+  return (
+    <SelectPrimitive.ScrollDownButton
+      data-slot="select-scroll-down-button"
+      className={cn(
+        "z-10 flex cursor-default items-center justify-center bg-popover py-1 [&_svg:not([class*='size-'])]:size-4",
+        className
+      )}
+      {...props}
+    >
+      <ChevronDownIcon
+      />
+    </SelectPrimitive.ScrollDownButton>
+  )
+}
+
+export {
+  Select,
+  SelectContent,
+  SelectGroup,
+  SelectItem,
+  SelectLabel,
+  SelectScrollDownButton,
+  SelectScrollUpButton,
+  SelectSeparator,
+  SelectTrigger,
+  SelectValue,
+}

components/ui/separator.tsx

@@ -0,0 +1,28 @@
+"use client"
+
+import * as React from "react"
+import { Separator as SeparatorPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function Separator({
+  className,
+  orientation = "horizontal",
+  decorative = true,
+  ...props
+}: React.ComponentProps<typeof SeparatorPrimitive.Root>) {
+  return (
+    <SeparatorPrimitive.Root
+      data-slot="separator"
+      decorative={decorative}
+      orientation={orientation}
+      className={cn(
+        "shrink-0 bg-border data-horizontal:h-px data-horizontal:w-full data-vertical:w-px data-vertical:self-stretch",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Separator }

components/ui/sheet.tsx

@@ -0,0 +1,144 @@
+"use client"
+
+import * as React from "react"
+import { Dialog as SheetPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { XIcon } from "lucide-react"
+
+function Sheet({ ...props }: React.ComponentProps<typeof SheetPrimitive.Root>) {
+  return <SheetPrimitive.Root data-slot="sheet" {...props} />
+}
+
+function SheetTrigger({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Trigger>) {
+  return <SheetPrimitive.Trigger data-slot="sheet-trigger" {...props} />
+}
+
+function SheetClose({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Close>) {
+  return <SheetPrimitive.Close data-slot="sheet-close" {...props} />
+}
+
+function SheetPortal({
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Portal>) {
+  return <SheetPrimitive.Portal data-slot="sheet-portal" {...props} />
+}
+
+function SheetOverlay({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Overlay>) {
+  return (
+    <SheetPrimitive.Overlay
+      data-slot="sheet-overlay"
+      className={cn(
+        "fixed inset-0 z-50 bg-black/50 supports-backdrop-filter:backdrop-blur-sm data-open:animate-in data-open:fade-in-0 data-open:duration-300 data-closed:animate-out data-closed:fade-out-0 data-closed:duration-200",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SheetContent({
+  className,
+  children,
+  side = "right",
+  showCloseButton = true,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Content> & {
+  side?: "top" | "right" | "bottom" | "left"
+  showCloseButton?: boolean
+}) {
+  return (
+    <SheetPortal>
+      <SheetOverlay />
+      <SheetPrimitive.Content
+        data-slot="sheet-content"
+        data-side={side}
+        className={cn(
+          "fixed z-50 flex flex-col bg-background bg-clip-padding text-sm shadow-2xl data-[side=bottom]:inset-x-0 data-[side=bottom]:bottom-0 data-[side=bottom]:h-auto data-[side=bottom]:border-t data-[side=left]:inset-y-0 data-[side=left]:left-0 data-[side=left]:h-full data-[side=left]:w-[85%] data-[side=right]:inset-y-0 data-[side=right]:right-0 data-[side=right]:h-full data-[side=right]:w-[85%] data-[side=right]:border-l data-[side=top]:inset-x-0 data-[side=top]:top-0 data-[side=top]:h-auto data-[side=top]:border-b data-[side=left]:sm:max-w-sm data-[side=right]:sm:max-w-sm data-open:animate-in data-open:fade-in-0 data-open:duration-400 data-open:ease-[cubic-bezier(0.32,0.72,0,1)] data-[side=bottom]:data-open:slide-in-from-bottom-full data-[side=left]:data-open:slide-in-from-left-full data-[side=right]:data-open:slide-in-from-right-full data-[side=top]:data-open:slide-in-from-top-full data-closed:animate-out data-closed:fade-out-0 data-closed:duration-300 data-closed:ease-[cubic-bezier(0.32,0.72,0,1)] data-[side=bottom]:data-closed:slide-out-to-bottom-full data-[side=left]:data-closed:slide-out-to-left-full data-[side=right]:data-closed:slide-out-to-right-full data-[side=top]:data-closed:slide-out-to-top-full",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        {showCloseButton && (
+          <SheetPrimitive.Close data-slot="sheet-close" asChild>
+            <Button
+              variant="ghost"
+              className="absolute top-4 right-4"
+              size="icon-sm"
+            >
+              <XIcon
+              />
+              <span className="sr-only">Close</span>
+            </Button>
+          </SheetPrimitive.Close>
+        )}
+      </SheetPrimitive.Content>
+    </SheetPortal>
+  )
+}
+
+function SheetHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sheet-header"
+      className={cn("flex flex-col gap-1.5 p-6", className)}
+      {...props}
+    />
+  )
+}
+
+function SheetFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sheet-footer"
+      className={cn("mt-auto flex flex-col gap-2 p-6", className)}
+      {...props}
+    />
+  )
+}
+
+function SheetTitle({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Title>) {
+  return (
+    <SheetPrimitive.Title
+      data-slot="sheet-title"
+      className={cn("text-base font-medium text-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+function SheetDescription({
+  className,
+  ...props
+}: React.ComponentProps<typeof SheetPrimitive.Description>) {
+  return (
+    <SheetPrimitive.Description
+      data-slot="sheet-description"
+      className={cn("text-sm text-muted-foreground", className)}
+      {...props}
+    />
+  )
+}
+
+export {
+  Sheet,
+  SheetTrigger,
+  SheetClose,
+  SheetContent,
+  SheetHeader,
+  SheetFooter,
+  SheetTitle,
+  SheetDescription,
+}

components/ui/sidebar.tsx

@@ -0,0 +1,713 @@
+"use client"
+
+import * as React from "react"
+import { cva, type VariantProps } from "class-variance-authority"
+import { Slot } from "radix-ui"
+
+import { useIsMobile } from "@/hooks/use-mobile"
+import { cn } from "@/lib/utils"
+import { Button } from "@/components/ui/button"
+import { Input } from "@/components/ui/input"
+import { Separator } from "@/components/ui/separator"
+import {
+  Sheet,
+  SheetContent,
+  SheetDescription,
+  SheetHeader,
+  SheetTitle,
+} from "@/components/ui/sheet"
+import { Skeleton } from "@/components/ui/skeleton"
+import {
+  Tooltip,
+  TooltipContent,
+  TooltipTrigger,
+} from "@/components/ui/tooltip"
+import { PanelLeftIcon } from "lucide-react"
+
+const SIDEBAR_COOKIE_NAME = "sidebar_state"
+const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7
+const SIDEBAR_WIDTH = "16rem"
+const SIDEBAR_WIDTH_MOBILE = "18rem"
+const SIDEBAR_WIDTH_ICON = "3rem"
+const SIDEBAR_KEYBOARD_SHORTCUT = "b"
+
+type SidebarContextProps = {
+  state: "expanded" | "collapsed"
+  open: boolean
+  setOpen: (open: boolean) => void
+  openMobile: boolean
+  setOpenMobile: (open: boolean) => void
+  isMobile: boolean
+  toggleSidebar: () => void
+}
+
+const SidebarContext = React.createContext<SidebarContextProps | null>(null)
+
+function useSidebar() {
+  const context = React.useContext(SidebarContext)
+  if (!context) {
+    throw new Error("useSidebar must be used within a SidebarProvider.")
+  }
+
+  return context
+}
+
+function SidebarProvider({
+  defaultOpen = true,
+  open: openProp,
+  onOpenChange: setOpenProp,
+  className,
+  style,
+  children,
+  ...props
+}: React.ComponentProps<"div"> & {
+  defaultOpen?: boolean
+  open?: boolean
+  onOpenChange?: (open: boolean) => void
+}) {
+  const isMobile = useIsMobile()
+  const [openMobile, setOpenMobile] = React.useState(false)
+
+  const [_open, _setOpen] = React.useState(defaultOpen)
+  const open = openProp ?? _open
+  const setOpen = React.useCallback(
+    (value: boolean | ((value: boolean) => boolean)) => {
+      const openState = typeof value === "function" ? value(open) : value
+      if (setOpenProp) {
+        setOpenProp(openState)
+      } else {
+        _setOpen(openState)
+      }
+
+      document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`
+    },
+    [setOpenProp, open]
+  )
+
+  const toggleSidebar = React.useCallback(() => {
+    return isMobile ? setOpenMobile((open) => !open) : setOpen((open) => !open)
+  }, [isMobile, setOpen, setOpenMobile])
+
+  React.useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (
+        event.key === SIDEBAR_KEYBOARD_SHORTCUT &&
+        (event.metaKey || event.ctrlKey)
+      ) {
+        event.preventDefault()
+        toggleSidebar()
+      }
+    }
+
+    window.addEventListener("keydown", handleKeyDown)
+    return () => window.removeEventListener("keydown", handleKeyDown)
+  }, [toggleSidebar])
+
+  const state = open ? "expanded" : "collapsed"
+
+  const contextValue = React.useMemo<SidebarContextProps>(
+    () => ({
+      state,
+      open,
+      setOpen,
+      isMobile,
+      openMobile,
+      setOpenMobile,
+      toggleSidebar,
+    }),
+    [state, open, setOpen, isMobile, openMobile, setOpenMobile, toggleSidebar]
+  )
+
+  return (
+    <SidebarContext.Provider value={contextValue}>
+      <div
+        data-slot="sidebar-wrapper"
+        style={
+          {
+            "--sidebar-width": SIDEBAR_WIDTH,
+            "--sidebar-width-icon": SIDEBAR_WIDTH_ICON,
+            ...style,
+          } as React.CSSProperties
+        }
+        className={cn(
+          "group/sidebar-wrapper flex min-h-svh w-full bg-sidebar",
+          className
+        )}
+        {...props}
+      >
+        {children}
+      </div>
+    </SidebarContext.Provider>
+  )
+}
+
+function Sidebar({
+  side = "left",
+  variant = "sidebar",
+  collapsible = "offcanvas",
+  className,
+  children,
+  dir,
+  ...props
+}: React.ComponentProps<"div"> & {
+  side?: "left" | "right"
+  variant?: "sidebar" | "floating" | "inset"
+  collapsible?: "offcanvas" | "icon" | "none"
+}) {
+  const { isMobile, state, openMobile, setOpenMobile } = useSidebar()
+
+  if (collapsible === "none") {
+    return (
+      <div
+        data-slot="sidebar"
+        className={cn(
+          "flex h-full w-(--sidebar-width) flex-col bg-sidebar text-sidebar-foreground",
+          className
+        )}
+        {...props}
+      >
+        {children}
+      </div>
+    )
+  }
+
+  if (isMobile) {
+    return (
+      <Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
+        <SheetContent
+          dir={dir}
+          data-sidebar="sidebar"
+          data-slot="sidebar"
+          data-mobile="true"
+          className="inset-x-0 bottom-0 top-auto h-[70dvh] w-full rounded-t-2xl border-t border-border/30 bg-sidebar p-0 text-sidebar-foreground [&>button]:hidden"
+          showCloseButton={false}
+          side="bottom"
+        >
+          <SheetHeader className="sr-only">
+            <SheetTitle>Sidebar</SheetTitle>
+            <SheetDescription>Displays the mobile sidebar.</SheetDescription>
+          </SheetHeader>
+          <div className="mx-auto mt-2 h-1 w-10 rounded-full bg-sidebar-foreground/20" />
+          <div className="flex h-full w-full flex-col overflow-y-auto pt-2">{children}</div>
+        </SheetContent>
+      </Sheet>
+    )
+  }
+
+  return (
+    <div
+      className="group peer hidden text-sidebar-foreground md:block"
+      data-state={state}
+      data-collapsible={state === "collapsed" ? collapsible : ""}
+      data-variant={variant}
+      data-side={side}
+      data-slot="sidebar"
+    >
+      <div
+        data-slot="sidebar-gap"
+        className={cn(
+          "relative w-(--sidebar-width) bg-transparent transition-[width] duration-300 ease-[cubic-bezier(0.22,1,0.36,1)]",
+          "group-data-[collapsible=offcanvas]:w-0",
+          "group-data-[side=right]:rotate-180",
+          variant === "floating" || variant === "inset"
+            ? "group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4)))]"
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon)"
+        )}
+      />
+      <div
+        data-slot="sidebar-container"
+        data-side={side}
+        className={cn(
+          "fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-300 ease-[cubic-bezier(0.22,1,0.36,1)] data-[side=left]:left-0 data-[side=left]:group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)] data-[side=right]:right-0 data-[side=right]:group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)] md:flex",
+          variant === "floating" || variant === "inset"
+            ? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]"
+            : "group-data-[collapsible=icon]:w-(--sidebar-width-icon)",
+          className
+        )}
+        {...props}
+      >
+        <div
+          data-sidebar="sidebar"
+          data-slot="sidebar-inner"
+          className="flex size-full flex-col bg-sidebar group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:border-none group-data-[variant=floating]:shadow-sm group-data-[variant=floating]:ring-1 group-data-[variant=floating]:ring-sidebar-border"
+        >
+          {children}
+        </div>
+      </div>
+    </div>
+  )
+}
+
+function SidebarTrigger({
+  className,
+  onClick,
+  ...props
+}: React.ComponentProps<typeof Button>) {
+  const { toggleSidebar } = useSidebar()
+
+  return (
+    <Button
+      data-sidebar="trigger"
+      data-slot="sidebar-trigger"
+      variant="ghost"
+      size="icon-sm"
+      className={cn(className)}
+      onClick={(event) => {
+        onClick?.(event)
+        toggleSidebar()
+      }}
+      {...props}
+    >
+      <PanelLeftIcon />
+      <span className="sr-only">Toggle Sidebar</span>
+    </Button>
+  )
+}
+
+function SidebarRail({ className, ...props }: React.ComponentProps<"button">) {
+  const { toggleSidebar, state } = useSidebar()
+  const isCollapsed = state === "collapsed"
+
+  return (
+    <div
+      data-slot="sidebar-rail"
+      className={cn(
+        "group/rail absolute inset-y-0 z-20 hidden w-4 overflow-visible group-data-[side=left]:-right-4 sm:block",
+        className
+      )}
+    >
+      <button
+        data-sidebar="rail"
+        aria-label="Toggle Sidebar"
+        tabIndex={-1}
+        onClick={toggleSidebar}
+        className="absolute inset-y-0 left-0 w-4 cursor-w-resize [[data-side=left][data-state=collapsed]_&]:cursor-e-resize"
+        {...props}
+      />
+      <button
+        aria-label="Toggle Sidebar"
+        tabIndex={-1}
+        onClick={toggleSidebar}
+        className={cn(
+          "absolute left-0 h-3 w-3 cursor-e-resize",
+          isCollapsed ? "top-0" : "top-[calc(3.5rem-6px)] cursor-w-resize"
+        )}
+      />
+      <button
+        aria-label="Toggle Sidebar"
+        tabIndex={-1}
+        onClick={toggleSidebar}
+        className={cn(
+          "absolute left-3 h-[6px] w-[100vw] cursor-e-resize",
+          isCollapsed ? "top-0" : "top-[calc(3.5rem-6px)] cursor-w-resize"
+        )}
+      />
+      <div className={cn(
+        "pointer-events-none absolute bottom-0 left-0 w-[100vw] rounded-tl-[12px] border-t border-l border-sidebar-border opacity-0 transition-opacity duration-150 group-hover/rail:opacity-100",
+        isCollapsed ? "top-0" : "top-14"
+      )} />
+    </div>
+  )
+}
+
+function SidebarInset({ className, ...props }: React.ComponentProps<"main">) {
+  return (
+    <main
+      data-slot="sidebar-inset"
+      className={cn(
+        "relative flex w-full flex-1 flex-col bg-sidebar [transform:translate3d(0,0,0)]",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarInput({
+  className,
+  ...props
+}: React.ComponentProps<typeof Input>) {
+  return (
+    <Input
+      data-slot="sidebar-input"
+      data-sidebar="input"
+      className={cn("h-8 w-full bg-background shadow-none", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-header"
+      data-sidebar="header"
+      className={cn(
+        "flex flex-col gap-2 p-2 [--radius:var(--radius-xl)]",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarFooter({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-footer"
+      data-sidebar="footer"
+      className={cn("flex flex-col gap-2 p-2", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarSeparator({
+  className,
+  ...props
+}: React.ComponentProps<typeof Separator>) {
+  return (
+    <Separator
+      data-slot="sidebar-separator"
+      data-sidebar="separator"
+      className={cn("mx-2 w-auto bg-sidebar-border", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-content"
+      data-sidebar="content"
+      className={cn(
+        "no-scrollbar flex min-h-0 flex-1 flex-col gap-2 overflow-auto [--radius:var(--radius-xl)] group-data-[collapsible=icon]:overflow-hidden",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarGroup({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-group"
+      data-sidebar="group"
+      className={cn("relative flex w-full min-w-0 flex-col p-2", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarGroupLabel({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"div"> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "div"
+
+  return (
+    <Comp
+      data-slot="sidebar-group-label"
+      data-sidebar="group-label"
+      className={cn(
+        "flex h-8 shrink-0 items-center rounded-md px-2 text-[10px] font-semibold uppercase tracking-[0.12em] text-sidebar-foreground/70 ring-sidebar-ring outline-hidden transition-[margin,opacity] duration-200 ease-linear group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0 focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarGroupAction({
+  className,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> & { asChild?: boolean }) {
+  const Comp = asChild ? Slot.Root : "button"
+
+  return (
+    <Comp
+      data-slot="sidebar-group-action"
+      data-sidebar="group-action"
+      className={cn(
+        "absolute top-3.5 right-3 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden after:absolute after:-inset-2 hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarGroupContent({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-group-content"
+      data-sidebar="group-content"
+      className={cn("w-full text-sm", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenu({ className, ...props }: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="sidebar-menu"
+      data-sidebar="menu"
+      className={cn("flex w-full min-w-0 flex-col gap-1", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuItem({ className, ...props }: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="sidebar-menu-item"
+      data-sidebar="menu-item"
+      className={cn("group/menu-item relative", className)}
+      {...props}
+    />
+  )
+}
+
+const sidebarMenuButtonVariants = cva(
+  "peer/menu-button group/menu-button flex w-full items-center gap-2 overflow-hidden px-2.5 text-left text-[13px] text-sidebar-foreground/70 outline-hidden transition-colors duration-150 group-has-data-[sidebar=menu-action]/menu-item:pr-8 group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! hover:text-sidebar-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-open:hover:text-sidebar-accent-foreground data-active:font-medium data-active:text-sidebar-accent-foreground [&_svg]:size-4 [&_svg]:shrink-0 [&>span:last-child]:truncate",
+  {
+    variants: {
+      variant: {
+        default: "hover:text-sidebar-accent-foreground",
+        outline:
+          "bg-background shadow-[0_0_0_1px_hsl(var(--sidebar-border))] hover:bg-sidebar-accent hover:text-sidebar-accent-foreground hover:shadow-[0_0_0_1px_hsl(var(--sidebar-accent))]",
+      },
+      size: {
+        default: "h-8 text-[13px]",
+        sm: "h-8 text-xs",
+        lg: "h-14 px-3 text-sm group-data-[collapsible=icon]:p-0!",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function SidebarMenuButton({
+  asChild = false,
+  isActive = false,
+  variant = "default",
+  size = "default",
+  tooltip,
+  className,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean
+  isActive?: boolean
+  tooltip?: string | React.ComponentProps<typeof TooltipContent>
+} & VariantProps<typeof sidebarMenuButtonVariants>) {
+  const Comp = asChild ? Slot.Root : "button"
+  const { isMobile, state } = useSidebar()
+
+  const button = (
+    <Comp
+      data-slot="sidebar-menu-button"
+      data-sidebar="menu-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(sidebarMenuButtonVariants({ variant, size }), className)}
+      {...props}
+    />
+  )
+
+  if (!tooltip) {
+    return button
+  }
+
+  if (typeof tooltip === "string") {
+    tooltip = {
+      children: tooltip,
+    }
+  }
+
+  return (
+    <Tooltip>
+      <TooltipTrigger asChild>{button}</TooltipTrigger>
+      <TooltipContent
+        side="right"
+        align="center"
+        hidden={state !== "collapsed" || isMobile}
+        {...tooltip}
+      />
+    </Tooltip>
+  )
+}
+
+function SidebarMenuAction({
+  className,
+  asChild = false,
+  showOnHover = false,
+  ...props
+}: React.ComponentProps<"button"> & {
+  asChild?: boolean
+  showOnHover?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "button"
+
+  return (
+    <Comp
+      data-slot="sidebar-menu-action"
+      data-sidebar="menu-action"
+      className={cn(
+        "absolute top-1.5 right-1 flex aspect-square w-5 items-center justify-center rounded-md p-0 text-sidebar-foreground/40 outline-hidden transition-colors duration-150 group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-foreground/60 peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 after:absolute after:-inset-2 hover:bg-sidebar-accent hover:text-sidebar-accent-foreground md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
+        showOnHover &&
+          "group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 peer-data-active/menu-button:text-sidebar-accent-foreground aria-expanded:opacity-100 md:opacity-0",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuBadge({
+  className,
+  ...props
+}: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="sidebar-menu-badge"
+      data-sidebar="menu-badge"
+      className={cn(
+        "pointer-events-none absolute right-1 flex h-5 min-w-5 items-center justify-center rounded-md px-1 text-xs font-medium text-sidebar-foreground tabular-nums select-none group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 peer-data-active/menu-button:text-sidebar-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuSkeleton({
+  className,
+  showIcon = false,
+  ...props
+}: React.ComponentProps<"div"> & {
+  showIcon?: boolean
+}) {
+  const [width] = React.useState(() => {
+    return `${Math.floor(Math.random() * 40) + 50}%`
+  })
+
+  return (
+    <div
+      data-slot="sidebar-menu-skeleton"
+      data-sidebar="menu-skeleton"
+      className={cn("flex h-8 items-center gap-2 rounded-md px-2", className)}
+      {...props}
+    >
+      {showIcon && (
+        <Skeleton
+          className="size-4 rounded-md"
+          data-sidebar="menu-skeleton-icon"
+        />
+      )}
+      <Skeleton
+        className="h-4 max-w-(--skeleton-width) flex-1"
+        data-sidebar="menu-skeleton-text"
+        style={
+          {
+            "--skeleton-width": width,
+          } as React.CSSProperties
+        }
+      />
+    </div>
+  )
+}
+
+function SidebarMenuSub({ className, ...props }: React.ComponentProps<"ul">) {
+  return (
+    <ul
+      data-slot="sidebar-menu-sub"
+      data-sidebar="menu-sub"
+      className={cn(
+        "mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-l border-sidebar-border px-2.5 py-0.5 group-data-[collapsible=icon]:hidden",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuSubItem({
+  className,
+  ...props
+}: React.ComponentProps<"li">) {
+  return (
+    <li
+      data-slot="sidebar-menu-sub-item"
+      data-sidebar="menu-sub-item"
+      className={cn("group/menu-sub-item relative", className)}
+      {...props}
+    />
+  )
+}
+
+function SidebarMenuSubButton({
+  asChild = false,
+  size = "md",
+  isActive = false,
+  className,
+  ...props
+}: React.ComponentProps<"a"> & {
+  asChild?: boolean
+  size?: "sm" | "md"
+  isActive?: boolean
+}) {
+  const Comp = asChild ? Slot.Root : "a"
+
+  return (
+    <Comp
+      data-slot="sidebar-menu-sub-button"
+      data-sidebar="menu-sub-button"
+      data-size={size}
+      data-active={isActive}
+      className={cn(
+        "flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded-md px-2 text-sidebar-foreground ring-sidebar-ring outline-hidden group-data-[collapsible=icon]:hidden hover:bg-sidebar-accent hover:text-sidebar-accent-foreground focus-visible:ring-2 active:bg-sidebar-accent active:text-sidebar-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[size=md]:text-sm data-[size=sm]:text-xs data-active:bg-sidebar-accent data-active:text-sidebar-accent-foreground [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Sidebar,
+  SidebarContent,
+  SidebarFooter,
+  SidebarGroup,
+  SidebarGroupAction,
+  SidebarGroupContent,
+  SidebarGroupLabel,
+  SidebarHeader,
+  SidebarInput,
+  SidebarInset,
+  SidebarMenu,
+  SidebarMenuAction,
+  SidebarMenuBadge,
+  SidebarMenuButton,
+  SidebarMenuItem,
+  SidebarMenuSkeleton,
+  SidebarMenuSub,
+  SidebarMenuSubButton,
+  SidebarMenuSubItem,
+  SidebarProvider,
+  SidebarRail,
+  SidebarSeparator,
+  SidebarTrigger,
+  useSidebar,
+}

components/ui/skeleton.tsx

@@ -0,0 +1,13 @@
+import { cn } from "@/lib/utils"
+
+function Skeleton({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="skeleton"
+      className={cn("animate-pulse rounded-xl bg-muted", className)}
+      {...props}
+    />
+  )
+}
+
+export { Skeleton }

components/ui/spinner.tsx

@@ -0,0 +1,10 @@
+import { cn } from "@/lib/utils"
+import { Loader2Icon } from "lucide-react"
+
+function Spinner({ className, ...props }: React.ComponentProps<"svg">) {
+  return (
+    <Loader2Icon role="status" aria-label="Loading" className={cn("size-4 animate-spin", className)} {...props} />
+  )
+}
+
+export { Spinner }

components/ui/textarea.tsx

@@ -0,0 +1,18 @@
+import * as React from "react"
+
+import { cn } from "@/lib/utils"
+
+function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
+  return (
+    <textarea
+      data-slot="textarea"
+      className={cn(
+        "flex field-sizing-content min-h-16 w-full resize-none rounded-xl border border-input bg-input/30 px-3 py-3 text-base transition-colors outline-none placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-[3px] focus-visible:ring-ring/50 disabled:cursor-not-allowed disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-[3px] aria-invalid:ring-destructive/20 md:text-sm dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export { Textarea }

components/ui/tooltip.tsx

@@ -0,0 +1,57 @@
+"use client"
+
+import * as React from "react"
+import { Tooltip as TooltipPrimitive } from "radix-ui"
+
+import { cn } from "@/lib/utils"
+
+function TooltipProvider({
+  delayDuration = 0,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Provider>) {
+  return (
+    <TooltipPrimitive.Provider
+      data-slot="tooltip-provider"
+      delayDuration={delayDuration}
+      {...props}
+    />
+  )
+}
+
+function Tooltip({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Root>) {
+  return <TooltipPrimitive.Root data-slot="tooltip" {...props} />
+}
+
+function TooltipTrigger({
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Trigger>) {
+  return <TooltipPrimitive.Trigger data-slot="tooltip-trigger" {...props} />
+}
+
+function TooltipContent({
+  className,
+  sideOffset = 0,
+  children,
+  ...props
+}: React.ComponentProps<typeof TooltipPrimitive.Content>) {
+  return (
+    <TooltipPrimitive.Portal>
+      <TooltipPrimitive.Content
+        data-slot="tooltip-content"
+        sideOffset={sideOffset}
+        className={cn(
+          "z-50 inline-flex w-fit max-w-xs origin-(--radix-tooltip-content-transform-origin) items-center gap-1.5 rounded-2xl bg-foreground px-3 py-1.5 text-xs text-background has-data-[slot=kbd]:pr-1.5 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 **:data-[slot=kbd]:relative **:data-[slot=kbd]:isolate **:data-[slot=kbd]:z-50 **:data-[slot=kbd]:rounded-4xl data-[state=delayed-open]:animate-in data-[state=delayed-open]:fade-in-0 data-[state=delayed-open]:zoom-in-95 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95",
+          className
+        )}
+        {...props}
+      >
+        {children}
+        <TooltipPrimitive.Arrow className="z-50 size-2.5 translate-y-[calc(-50%_-_2px)] rotate-45 rounded-[2px] bg-foreground fill-foreground data-[side=left]:translate-x-[-1.5px] data-[side=right]:translate-x-[1.5px]" />
+      </TooltipPrimitive.Content>
+    </TooltipPrimitive.Portal>
+  )
+}
+
+export { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger }

docker-entrypoint.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+set -e
+
+if [ -n "$DATABASE_URL" ]; then
+  echo "==> Running database migrations"
+  node -e "
+    const { drizzle } = require('drizzle-orm/postgres-js');
+    const { migrate } = require('drizzle-orm/postgres-js/migrator');
+    const postgres = require('postgres');
+    (async () => {
+      const sql = postgres(process.env.DATABASE_URL, { max: 1 });
+      const db = drizzle(sql);
+      await migrate(db, { migrationsFolder: './lib/db/migrations' });
+      await sql.end();
+      console.log('Migrations completed');
+    })().catch((err) => { console.error('Migration failed:', err); process.exit(1); });
+  "
+else
+  echo "==> DATABASE_URL not set, skipping migrations"
+fi
+
+exec "$@"

drizzle.config.ts

@@ -0,0 +1,15 @@
+import { config } from "dotenv";
+import { defineConfig } from "drizzle-kit";
+
+config({
+  path: ".env.local",
+});
+
+export default defineConfig({
+  schema: "./lib/db/schema.ts",
+  out: "./lib/db/migrations",
+  dialect: "postgresql",
+  dbCredentials: {
+    url: process.env.DATABASE_URL ?? "",
+  },
+});

hooks/use-active-chat.tsx

@@ -0,0 +1,284 @@
+"use client";
+
+import type { UseChatHelpers } from "@ai-sdk/react";
+import { useChat } from "@ai-sdk/react";
+import { DefaultChatTransport } from "ai";
+import { usePathname } from "next/navigation";
+import {
+  createContext,
+  type Dispatch,
+  type ReactNode,
+  type SetStateAction,
+  useContext,
+  useEffect,
+  useMemo,
+  useRef,
+  useState,
+} from "react";
+import useSWR, { useSWRConfig } from "swr";
+import { unstable_serialize } from "swr/infinite";
+import { useDataStream } from "@/components/chat/data-stream-provider";
+import { getChatHistoryPaginationKey } from "@/components/chat/sidebar-history";
+import { toast } from "@/components/chat/toast";
+import type { VisibilityType } from "@/components/chat/visibility-selector";
+import { DEFAULT_CHAT_MODEL } from "@/lib/ai/models";
+import type { Vote } from "@/lib/db/schema";
+import { ChatbotError } from "@/lib/errors";
+import type { ChatMessage } from "@/lib/types";
+import { fetcher, fetchWithErrorHandlers, generateUUID } from "@/lib/utils";
+
+type ActiveChatContextValue = {
+  chatId: string;
+  messages: ChatMessage[];
+  setMessages: UseChatHelpers<ChatMessage>["setMessages"];
+  sendMessage: UseChatHelpers<ChatMessage>["sendMessage"];
+  status: UseChatHelpers<ChatMessage>["status"];
+  stop: UseChatHelpers<ChatMessage>["stop"];
+  regenerate: UseChatHelpers<ChatMessage>["regenerate"];
+  addToolApprovalResponse: UseChatHelpers<ChatMessage>["addToolApprovalResponse"];
+  input: string;
+  setInput: Dispatch<SetStateAction<string>>;
+  visibilityType: VisibilityType;
+  isReadonly: boolean;
+  isLoading: boolean;
+  votes: Vote[] | undefined;
+  currentModelId: string;
+  setCurrentModelId: (id: string) => void;
+};
+
+const ActiveChatContext = createContext<ActiveChatContextValue | null>(null);
+
+function extractChatId(pathname: string): string | null {
+  const match = pathname.match(/\/chat\/([^/]+)/);
+  return match ? match[1] : null;
+}
+
+export function ActiveChatProvider({ children }: { children: ReactNode }) {
+  const pathname = usePathname();
+  const { setDataStream } = useDataStream();
+  const { mutate } = useSWRConfig();
+
+  const chatIdFromUrl = extractChatId(pathname);
+  const isNewChat = !chatIdFromUrl;
+  const newChatIdRef = useRef(generateUUID());
+  const prevPathnameRef = useRef(pathname);
+
+  if (isNewChat && prevPathnameRef.current !== pathname) {
+    newChatIdRef.current = generateUUID();
+  }
+  prevPathnameRef.current = pathname;
+
+  const chatId = chatIdFromUrl ?? newChatIdRef.current;
+
+  const [currentModelId, setCurrentModelId] = useState(DEFAULT_CHAT_MODEL);
+  const currentModelIdRef = useRef(currentModelId);
+  useEffect(() => {
+    currentModelIdRef.current = currentModelId;
+  }, [currentModelId]);
+
+  const [input, setInput] = useState("");
+
+  const { data: chatData, isLoading } = useSWR(
+    isNewChat
+      ? null
+      : `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/messages?chatId=${chatId}`,
+    fetcher,
+    { revalidateOnFocus: false }
+  );
+
+  const initialMessages: ChatMessage[] = isNewChat
+    ? []
+    : (chatData?.messages ?? []);
+  const visibility: VisibilityType = isNewChat
+    ? "private"
+    : (chatData?.visibility ?? "private");
+
+  const {
+    messages,
+    setMessages,
+    sendMessage,
+    status,
+    stop,
+    regenerate,
+    addToolApprovalResponse,
+  } = useChat<ChatMessage>({
+    id: chatId,
+    messages: initialMessages,
+    generateId: generateUUID,
+    sendAutomaticallyWhen: ({ messages: currentMessages }) => {
+      const lastMessage = currentMessages.at(-1);
+      return (
+        lastMessage?.parts?.some(
+          (part) =>
+            "state" in part &&
+            part.state === "approval-responded" &&
+            "approval" in part &&
+            (part.approval as { approved?: boolean })?.approved === true
+        ) ?? false
+      );
+    },
+    transport: new DefaultChatTransport({
+      api: `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/chat`,
+      fetch: fetchWithErrorHandlers,
+      prepareSendMessagesRequest(request) {
+        const lastMessage = request.messages.at(-1);
+        const isToolApprovalContinuation =
+          lastMessage?.role !== "user" ||
+          request.messages.some((msg) =>
+            msg.parts?.some((part) => {
+              const state = (part as { state?: string }).state;
+              return (
+                state === "approval-responded" || state === "output-denied"
+              );
+            })
+          );
+
+        return {
+          body: {
+            id: request.id,
+            ...(isToolApprovalContinuation
+              ? { messages: request.messages }
+              : { message: lastMessage }),
+            selectedChatModel: currentModelIdRef.current,
+            selectedVisibilityType: visibility,
+            ...request.body,
+          },
+        };
+      },
+    }),
+    onData: (dataPart) => {
+      setDataStream((ds) => (ds ? [...ds, dataPart] : []));
+    },
+    onFinish: () => {
+      mutate(unstable_serialize(getChatHistoryPaginationKey));
+    },
+    onError: (error) => {
+      if (error instanceof ChatbotError) {
+        toast({ type: "error", description: error.message });
+      } else {
+        toast({
+          type: "error",
+          description: error.message || "Oops, an error occurred!",
+        });
+      }
+    },
+  });
+
+  const loadedChatIds = useRef(new Set<string>());
+
+  if (isNewChat && !loadedChatIds.current.has(newChatIdRef.current)) {
+    loadedChatIds.current.add(newChatIdRef.current);
+  }
+
+  useEffect(() => {
+    if (loadedChatIds.current.has(chatId)) {
+      return;
+    }
+    if (chatData?.messages) {
+      loadedChatIds.current.add(chatId);
+      setMessages(chatData.messages);
+    }
+  }, [chatId, chatData?.messages, setMessages]);
+
+  const prevChatIdRef = useRef(chatId);
+  useEffect(() => {
+    if (prevChatIdRef.current !== chatId) {
+      prevChatIdRef.current = chatId;
+      if (isNewChat) {
+        setMessages([]);
+      }
+    }
+  }, [chatId, isNewChat, setMessages]);
+
+  useEffect(() => {
+    if (chatData && !isNewChat) {
+      const cookieModel = document.cookie
+        .split("; ")
+        .find((row) => row.startsWith("chat-model="))
+        ?.split("=")[1];
+      if (cookieModel) {
+        setCurrentModelId(decodeURIComponent(cookieModel));
+      }
+    }
+  }, [chatData, isNewChat]);
+
+  const hasAppendedQueryRef = useRef(false);
+  useEffect(() => {
+    const params = new URLSearchParams(window.location.search);
+    const query = params.get("query");
+    if (query && !hasAppendedQueryRef.current) {
+      hasAppendedQueryRef.current = true;
+      window.history.replaceState(
+        {},
+        "",
+        `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/chat/${chatId}`
+      );
+      sendMessage({
+        role: "user" as const,
+        parts: [{ type: "text", text: query }],
+      });
+    }
+  }, [sendMessage, chatId]);
+
+  const isReadonly = isNewChat ? false : (chatData?.isReadonly ?? false);
+
+  const { data: votes } = useSWR<Vote[]>(
+    !isReadonly && messages.length >= 2
+      ? `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/vote?chatId=${chatId}`
+      : null,
+    fetcher,
+    { revalidateOnFocus: false }
+  );
+
+  const value = useMemo<ActiveChatContextValue>(
+    () => ({
+      chatId,
+      messages,
+      setMessages,
+      sendMessage,
+      status,
+      stop,
+      regenerate,
+      addToolApprovalResponse,
+      input,
+      setInput,
+      visibilityType: visibility,
+      isReadonly,
+      isLoading: !isNewChat && isLoading,
+      votes,
+      currentModelId,
+      setCurrentModelId,
+    }),
+    [
+      chatId,
+      messages,
+      setMessages,
+      sendMessage,
+      status,
+      stop,
+      regenerate,
+      addToolApprovalResponse,
+      input,
+      visibility,
+      isReadonly,
+      isNewChat,
+      isLoading,
+      votes,
+      currentModelId,
+    ]
+  );
+
+  return (
+    <ActiveChatContext.Provider value={value}>
+      {children}
+    </ActiveChatContext.Provider>
+  );
+}
+
+export function useActiveChat() {
+  const context = useContext(ActiveChatContext);
+  if (!context) {
+    throw new Error("useActiveChat must be used within ActiveChatProvider");
+  }
+  return context;
+}

hooks/use-chat-visibility.ts

@@ -0,0 +1,55 @@
+"use client";
+
+import { useMemo } from "react";
+import useSWR, { useSWRConfig } from "swr";
+import { unstable_serialize } from "swr/infinite";
+import { updateChatVisibility } from "@/app/(chat)/actions";
+import {
+  type ChatHistory,
+  getChatHistoryPaginationKey,
+} from "@/components/chat/sidebar-history";
+import type { VisibilityType } from "@/components/chat/visibility-selector";
+
+export function useChatVisibility({
+  chatId,
+  initialVisibilityType,
+}: {
+  chatId: string;
+  initialVisibilityType: VisibilityType;
+}) {
+  const { mutate, cache } = useSWRConfig();
+  const history: ChatHistory = cache.get(
+    `${process.env.NEXT_PUBLIC_BASE_PATH ?? ""}/api/history`
+  )?.data;
+
+  const { data: localVisibility, mutate: setLocalVisibility } = useSWR(
+    `${chatId}-visibility`,
+    null,
+    {
+      fallbackData: initialVisibilityType,
+    }
+  );
+
+  const visibilityType = useMemo(() => {
+    if (!history) {
+      return localVisibility;
+    }
+    const chat = history.chats.find((currentChat) => currentChat.id === chatId);
+    if (!chat) {
+      return "private";
+    }
+    return chat.visibility;
+  }, [history, chatId, localVisibility]);
+
+  const setVisibilityType = (updatedVisibilityType: VisibilityType) => {
+    setLocalVisibility(updatedVisibilityType);
+    mutate(unstable_serialize(getChatHistoryPaginationKey));
+
+    updateChatVisibility({
+      chatId,
+      visibility: updatedVisibilityType,
+    });
+  };
+
+  return { visibilityType, setVisibilityType };
+}

hooks/use-messages.tsx

@@ -0,0 +1,39 @@
+import type { UseChatHelpers } from "@ai-sdk/react";
+import { useEffect, useState } from "react";
+import type { ChatMessage } from "@/lib/types";
+import { useScrollToBottom } from "./use-scroll-to-bottom";
+
+export function useMessages({
+  status,
+}: {
+  status: UseChatHelpers<ChatMessage>["status"];
+}) {
+  const {
+    containerRef,
+    endRef,
+    isAtBottom,
+    scrollToBottom,
+    onViewportEnter,
+    onViewportLeave,
+    reset,
+  } = useScrollToBottom();
+
+  const [hasSentMessage, setHasSentMessage] = useState(false);
+
+  useEffect(() => {
+    if (status === "submitted") {
+      setHasSentMessage(true);
+    }
+  }, [status]);
+
+  return {
+    containerRef,
+    endRef,
+    isAtBottom,
+    scrollToBottom,
+    onViewportEnter,
+    onViewportLeave,
+    hasSentMessage,
+    reset,
+  };
+}

hooks/use-mobile.ts

@@ -0,0 +1,19 @@
+import * as React from "react"
+
+const MOBILE_BREAKPOINT = 768
+
+export function useIsMobile() {
+  const [isMobile, setIsMobile] = React.useState<boolean | undefined>(undefined)
+
+  React.useEffect(() => {
+    const mql = window.matchMedia(`(max-width: ${MOBILE_BREAKPOINT - 1}px)`)
+    const onChange = () => {
+      setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
+    }
+    mql.addEventListener("change", onChange)
+    setIsMobile(window.innerWidth < MOBILE_BREAKPOINT)
+    return () => mql.removeEventListener("change", onChange)
+  }, [])
+
+  return !!isMobile
+}