93 lines
2.6 KiB
TypeScript
93 lines
2.6 KiB
TypeScript
import type { UIMessage } from 'ai';
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import { PreviewMessage, ThinkingMessage } from './message';
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import { Greeting } from './greeting';
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import { memo } from 'react';
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import type { Vote } from '@/lib/db/schema';
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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 { motion } from 'framer-motion';
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import { useMessages } from '@/hooks/use-messages';
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interface MessagesProps {
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chatId: string;
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status: UseChatHelpers['status'];
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votes: Array<Vote> | undefined;
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messages: Array<UIMessage>;
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setMessages: UseChatHelpers['setMessages'];
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reload: UseChatHelpers['reload'];
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isReadonly: boolean;
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isArtifactVisible: boolean;
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}
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function PureMessages({
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chatId,
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status,
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votes,
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messages,
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setMessages,
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reload,
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isReadonly,
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}: MessagesProps) {
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const {
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containerRef: messagesContainerRef,
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endRef: messagesEndRef,
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onViewportEnter,
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onViewportLeave,
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hasSentMessage,
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} = useMessages({
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chatId,
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status,
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});
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return (
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<div
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ref={messagesContainerRef}
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className="flex flex-col min-w-0 gap-6 flex-1 overflow-y-scroll pt-4 relative"
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>
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{messages.length === 0 && <Greeting />}
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{messages.map((message, index) => (
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<PreviewMessage
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key={message.id}
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chatId={chatId}
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message={message}
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isLoading={status === 'streaming' && messages.length - 1 === index}
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vote={
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votes
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? votes.find((vote) => vote.messageId === message.id)
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: undefined
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}
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setMessages={setMessages}
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reload={reload}
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isReadonly={isReadonly}
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requiresScrollPadding={
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hasSentMessage && index === messages.length - 1
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}
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/>
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))}
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{status === 'submitted' &&
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messages.length > 0 &&
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messages[messages.length - 1].role === 'user' && <ThinkingMessage />}
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<motion.div
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ref={messagesEndRef}
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className="shrink-0 min-w-[24px] min-h-[24px]"
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onViewportLeave={onViewportLeave}
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onViewportEnter={onViewportEnter}
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/>
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</div>
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);
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}
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export const Messages = memo(PureMessages, (prevProps, nextProps) => {
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if (prevProps.isArtifactVisible && nextProps.isArtifactVisible) return true;
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if (prevProps.status !== nextProps.status) return false;
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if (prevProps.status && nextProps.status) return false;
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if (prevProps.messages.length !== nextProps.messages.length) return false;
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if (!equal(prevProps.messages, nextProps.messages)) return false;
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if (!equal(prevProps.votes, nextProps.votes)) return false;
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return true;
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});
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