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'use client';
import { useEffect, useRef, useState } from 'react';
import MessageInput from './MessageInput';
import { Message } from './ChatWindow';
import MessageBox from './MessageBox';
import MessageBoxLoading from './MessageBoxLoading';
const Chat = ({
loading,
messages,
sendMessage,
messageAppeared,
rewrite,
}: {
messages: Message[];
sendMessage: (message: string) => void;
loading: boolean;
messageAppeared: boolean;
rewrite: (messageId: string) => void;
}) => {
const [dividerWidth, setDividerWidth] = useState(0);
const dividerRef = useRef<HTMLDivElement | null>(null);
const messageEnd = useRef<HTMLDivElement | null>(null);
useEffect(() => {
const updateDividerWidth = () => {
if (dividerRef.current) {
setDividerWidth(dividerRef.current.scrollWidth);
}
};
updateDividerWidth();
window.addEventListener('resize', updateDividerWidth);
return () => {
window.removeEventListener('resize', updateDividerWidth);
};
});
useEffect(() => {
messageEnd.current?.scrollIntoView({ behavior: 'smooth' });
if (messages.length === 1) {
document.title = `${messages[0].content.substring(0, 30)} - Perplexica`;
}
}, [messages]);
return (
<div className="flex flex-col space-y-6 pt-8 pb-44 lg:pb-32 sm:mx-4 md:mx-8">
{messages.map((msg, i) => {
const isLast = i === messages.length - 1;
return (
<>
<MessageBox
key={i}
message={msg}
messageIndex={i}
history={messages}
loading={loading}
dividerRef={isLast ? dividerRef : undefined}
isLast={isLast}
rewrite={rewrite}
/>
{!isLast && msg.role === 'assistant' && (
<div className="h-px w-full bg-[#1C1C1C]" />
)}
</>
);
})}
{loading && !messageAppeared && <MessageBoxLoading />}
<div ref={messageEnd} className="h-0" />
{dividerWidth > 0 && (
<div
className="bottom-24 lg:bottom-10 fixed z-40"
style={{ width: dividerWidth }}
>
<MessageInput loading={loading} sendMessage={sendMessage} />
</div>
)}
</div>
);
};
export default Chat;
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