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
This commit is contained in:
dmitry.galkin 2026-05-25 14:54:04 +04:00
commit 3e21c2334c
129 changed files with 21913 additions and 0 deletions

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"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);