473 lines
14 KiB
TypeScript
473 lines
14 KiB
TypeScript
'use client';
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import type { UIMessage } from 'ai';
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import {
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useRef,
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useEffect,
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useState,
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useCallback,
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type Dispatch,
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type SetStateAction,
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type ChangeEvent,
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memo,
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useMemo,
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} from 'react';
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import { toast } from 'sonner';
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import { useLocalStorage, useWindowSize } from 'usehooks-ts';
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import {
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ArrowUpIcon,
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PaperclipIcon,
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CpuIcon,
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StopIcon,
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ChevronDownIcon,
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} from './icons';
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import { PreviewAttachment } from './preview-attachment';
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import { Button } from './ui/button';
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import { SuggestedActions } from './suggested-actions';
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import {
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PromptInput,
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PromptInputTextarea,
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PromptInputToolbar,
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PromptInputTools,
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PromptInputSubmit,
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PromptInputModelSelect,
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PromptInputModelSelectContent,
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} from './elements/prompt-input';
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import { SelectItem } from '@/components/ui/select';
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import * as SelectPrimitive from '@radix-ui/react-select';
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import equal from 'fast-deep-equal';
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import type { UseChatHelpers } from '@ai-sdk/react';
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import type { VisibilityType } from './visibility-selector';
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import type { Attachment, ChatMessage } from '@/lib/types';
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import type { AppUsage } from '@/lib/usage';
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import { chatModels } from '@/lib/ai/models';
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import { saveChatModelAsCookie } from '@/app/(chat)/actions';
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import { startTransition } from 'react';
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import { Context } from './elements/context';
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import { myProvider } from '@/lib/ai/providers';
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function PureMultimodalInput({
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chatId,
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input,
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setInput,
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status,
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stop,
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attachments,
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setAttachments,
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messages,
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setMessages,
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sendMessage,
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className,
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selectedVisibilityType,
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selectedModelId,
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onModelChange,
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usage,
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}: {
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chatId: string;
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input: string;
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setInput: Dispatch<SetStateAction<string>>;
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status: UseChatHelpers<ChatMessage>['status'];
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stop: () => void;
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attachments: Array<Attachment>;
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setAttachments: Dispatch<SetStateAction<Array<Attachment>>>;
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messages: Array<UIMessage>;
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setMessages: UseChatHelpers<ChatMessage>['setMessages'];
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sendMessage: UseChatHelpers<ChatMessage>['sendMessage'];
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className?: string;
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selectedVisibilityType: VisibilityType;
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selectedModelId: string;
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onModelChange?: (modelId: string) => void;
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usage?: AppUsage;
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}) {
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const textareaRef = useRef<HTMLTextAreaElement>(null);
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const { width } = useWindowSize();
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useEffect(() => {
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if (textareaRef.current) {
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adjustHeight();
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}
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}, []);
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const adjustHeight = () => {
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if (textareaRef.current) {
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textareaRef.current.style.height = '44px';
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}
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};
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const resetHeight = () => {
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if (textareaRef.current) {
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textareaRef.current.style.height = '44px';
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}
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};
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const [localStorageInput, setLocalStorageInput] = useLocalStorage(
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'input',
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'',
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);
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useEffect(() => {
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if (textareaRef.current) {
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const domValue = textareaRef.current.value;
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// Prefer DOM value over localStorage to handle hydration
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const finalValue = domValue || localStorageInput || '';
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setInput(finalValue);
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adjustHeight();
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}
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// Only run once after hydration
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, []);
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useEffect(() => {
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setLocalStorageInput(input);
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}, [input, setLocalStorageInput]);
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const handleInput = (event: React.ChangeEvent<HTMLTextAreaElement>) => {
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setInput(event.target.value);
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};
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const fileInputRef = useRef<HTMLInputElement>(null);
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const [uploadQueue, setUploadQueue] = useState<Array<string>>([]);
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const submitForm = useCallback(() => {
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window.history.replaceState({}, '', `/chat/${chatId}`);
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sendMessage({
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role: 'user',
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parts: [
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...attachments.map((attachment) => ({
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type: 'file' as const,
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url: attachment.url,
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name: attachment.name,
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mediaType: attachment.contentType,
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})),
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{
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type: 'text',
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text: input,
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},
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],
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});
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setAttachments([]);
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setLocalStorageInput('');
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resetHeight();
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setInput('');
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if (width && width > 768) {
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textareaRef.current?.focus();
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}
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}, [
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input,
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setInput,
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attachments,
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sendMessage,
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setAttachments,
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setLocalStorageInput,
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width,
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chatId,
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]);
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const uploadFile = async (file: File) => {
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const formData = new FormData();
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formData.append('file', file);
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try {
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const response = await fetch('/api/files/upload', {
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method: 'POST',
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body: formData,
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});
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if (response.ok) {
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const data = await response.json();
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const { url, pathname, contentType } = data;
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return {
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url,
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name: pathname,
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contentType: contentType,
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};
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}
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const { error } = await response.json();
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toast.error(error);
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} catch (error) {
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toast.error('Failed to upload file, please try again!');
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}
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};
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const modelResolver = useMemo(() => {
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return myProvider.languageModel(selectedModelId);
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}, [selectedModelId]);
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const contextProps = useMemo(
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() => ({
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usage,
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}),
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[usage],
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);
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const handleFileChange = useCallback(
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async (event: ChangeEvent<HTMLInputElement>) => {
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const files = Array.from(event.target.files || []);
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setUploadQueue(files.map((file) => file.name));
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try {
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const uploadPromises = files.map((file) => uploadFile(file));
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const uploadedAttachments = await Promise.all(uploadPromises);
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const successfullyUploadedAttachments = uploadedAttachments.filter(
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(attachment) => attachment !== undefined,
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);
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setAttachments((currentAttachments) => [
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...currentAttachments,
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...successfullyUploadedAttachments,
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]);
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} catch (error) {
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console.error('Error uploading files!', error);
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} finally {
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setUploadQueue([]);
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}
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},
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[setAttachments],
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);
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return (
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<div className="flex relative flex-col gap-4 w-full">
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{messages.length === 0 &&
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attachments.length === 0 &&
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uploadQueue.length === 0 && (
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<SuggestedActions
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sendMessage={sendMessage}
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chatId={chatId}
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selectedVisibilityType={selectedVisibilityType}
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/>
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)}
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<input
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type="file"
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className="-top-4 -left-4 pointer-events-none fixed size-0.5 opacity-0"
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ref={fileInputRef}
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multiple
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onChange={handleFileChange}
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tabIndex={-1}
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/>
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<PromptInput
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className="p-3 rounded-xl border transition-all duration-200 border-border bg-background shadow-xs focus-within:border-border hover:border-muted-foreground/50"
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onSubmit={(event) => {
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event.preventDefault();
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if (status !== 'ready') {
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toast.error('Please wait for the model to finish its response!');
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} else {
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submitForm();
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}
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}}
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>
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{(attachments.length > 0 || uploadQueue.length > 0) && (
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<div
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data-testid="attachments-preview"
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className="flex overflow-x-scroll flex-row gap-2 items-end"
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>
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{attachments.map((attachment) => (
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<PreviewAttachment
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key={attachment.url}
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attachment={attachment}
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onRemove={() => {
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setAttachments((currentAttachments) =>
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currentAttachments.filter((a) => a.url !== attachment.url),
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);
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if (fileInputRef.current) {
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fileInputRef.current.value = '';
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}
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}}
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/>
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))}
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{uploadQueue.map((filename) => (
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<PreviewAttachment
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key={filename}
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attachment={{
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url: '',
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name: filename,
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contentType: '',
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}}
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isUploading={true}
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/>
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))}
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</div>
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)}
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<div className="flex flex-row gap-1 items-start sm:gap-2">
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<PromptInputTextarea
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data-testid="multimodal-input"
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ref={textareaRef}
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placeholder="Send a message..."
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value={input}
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onChange={handleInput}
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minHeight={44}
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maxHeight={200}
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disableAutoResize={true}
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className="grow resize-none border-0! p-2 border-none! bg-transparent text-sm outline-none ring-0 [-ms-overflow-style:none] [scrollbar-width:none] placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-0 focus-visible:ring-offset-0 [&::-webkit-scrollbar]:hidden"
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rows={1}
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autoFocus
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/>{' '}
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<Context {...contextProps} />
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</div>
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<PromptInputToolbar className="!border-top-0 border-t-0! p-0 shadow-none dark:border-0 dark:border-transparent!">
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<PromptInputTools className="gap-0 sm:gap-0.5">
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<AttachmentsButton
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fileInputRef={fileInputRef}
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status={status}
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selectedModelId={selectedModelId}
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/>
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<ModelSelectorCompact selectedModelId={selectedModelId} onModelChange={onModelChange} />
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</PromptInputTools>
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{status === 'submitted' ? (
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<StopButton stop={stop} setMessages={setMessages} />
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) : (
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<PromptInputSubmit
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status={status}
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disabled={!input.trim() || uploadQueue.length > 0}
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className="rounded-full transition-colors duration-200 size-8 bg-primary text-primary-foreground hover:bg-primary/90 disabled:bg-muted disabled:text-muted-foreground"
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>
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<ArrowUpIcon size={14} />
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</PromptInputSubmit>
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)}
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</PromptInputToolbar>
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</PromptInput>
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</div>
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);
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}
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export const MultimodalInput = memo(
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PureMultimodalInput,
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(prevProps, nextProps) => {
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if (prevProps.input !== nextProps.input) return false;
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if (prevProps.status !== nextProps.status) return false;
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if (!equal(prevProps.attachments, nextProps.attachments)) return false;
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if (prevProps.selectedVisibilityType !== nextProps.selectedVisibilityType)
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return false;
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if (prevProps.selectedModelId !== nextProps.selectedModelId) return false;
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return true;
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},
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);
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function PureAttachmentsButton({
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fileInputRef,
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status,
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selectedModelId,
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}: {
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fileInputRef: React.MutableRefObject<HTMLInputElement | null>;
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status: UseChatHelpers<ChatMessage>['status'];
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selectedModelId: string;
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}) {
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const isReasoningModel = selectedModelId === 'chat-model-reasoning';
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return (
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<Button
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data-testid="attachments-button"
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className="p-1 h-8 rounded-lg transition-colors aspect-square hover:bg-accent"
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onClick={(event) => {
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event.preventDefault();
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fileInputRef.current?.click();
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}}
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disabled={status !== 'ready' || isReasoningModel}
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variant="ghost"
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>
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<PaperclipIcon size={14} style={{ width: 14, height: 14 }} />
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</Button>
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);
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}
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const AttachmentsButton = memo(PureAttachmentsButton);
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function PureModelSelectorCompact({
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selectedModelId,
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onModelChange,
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}: {
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selectedModelId: string;
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onModelChange?: (modelId: string) => void;
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}) {
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const [optimisticModelId, setOptimisticModelId] = useState(selectedModelId);
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useEffect(() => {
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setOptimisticModelId(selectedModelId);
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}, [selectedModelId]);
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const selectedModel = chatModels.find(
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(model) => model.id === optimisticModelId,
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);
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return (
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<PromptInputModelSelect
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value={selectedModel?.name}
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onValueChange={(modelName) => {
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const model = chatModels.find((m) => m.name === modelName);
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if (model) {
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setOptimisticModelId(model.id);
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onModelChange?.(model.id);
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startTransition(() => {
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saveChatModelAsCookie(model.id);
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});
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}
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}}
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>
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<SelectPrimitive.Trigger
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type="button"
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className="flex gap-2 items-center px-2 h-8 rounded-lg border-0 shadow-none transition-colors bg-background text-foreground hover:bg-accent focus:outline-none focus:ring-0 focus-visible:ring-0 focus-visible:ring-offset-0"
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>
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<CpuIcon size={16} />
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<span className="hidden text-xs font-medium sm:block">
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{selectedModel?.name}
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</span>
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<ChevronDownIcon size={16} />
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</SelectPrimitive.Trigger>
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<PromptInputModelSelectContent className="min-w-[260px] p-0">
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<div className="flex flex-col gap-px">
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{chatModels.map((model) => (
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<SelectItem
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key={model.id}
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value={model.name}
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className="px-3 py-2 text-xs"
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>
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<div className="flex flex-col flex-1 gap-1 min-w-0">
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<div className="text-xs font-medium truncate">{model.name}</div>
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<div className="text-[10px] text-muted-foreground truncate leading-tight">
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{model.description}
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</div>
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</div>
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</SelectItem>
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))}
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</div>
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</PromptInputModelSelectContent>
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</PromptInputModelSelect>
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);
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}
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const ModelSelectorCompact = memo(PureModelSelectorCompact);
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function PureStopButton({
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stop,
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setMessages,
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}: {
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stop: () => void;
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setMessages: UseChatHelpers<ChatMessage>['setMessages'];
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}) {
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return (
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<Button
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data-testid="stop-button"
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className="p-1 rounded-full transition-colors duration-200 size-7 bg-foreground text-background hover:bg-foreground/90 disabled:bg-muted disabled:text-muted-foreground"
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onClick={(event) => {
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event.preventDefault();
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stop();
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setMessages((messages) => messages);
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}}
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>
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<StopIcon size={14} />
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</Button>
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);
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}
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const StopButton = memo(PureStopButton);
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