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 { 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} />;

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"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>
);
};

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"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>
);

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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} />
);

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"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";

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"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);

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"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>
);
};

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"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>
);
};