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import React, { useState, useRef, useEffect } from "react";
import type { Message } from "../types";
interface ChatPaneProps {
messages: Message[];
onSend: (message: string) => void;
isLoading: boolean;
disabled: boolean;
placeholder: string;
}
export function ChatPane({
messages,
onSend,
isLoading,
disabled,
placeholder,
}: ChatPaneProps) {
const [input, setInput] = useState("");
const messagesEndRef = useRef<HTMLDivElement>(null);
useEffect(() => {
messagesEndRef.current?.scrollIntoView({ behavior: "smooth" });
}, [messages]);
const handleSend = () => {
if (!input.trim() || isLoading || disabled) return;
onSend(input.trim());
setInput("");
};
return (
<div className="chat-pane">
<div className="chat-messages">
{messages.map((msg) => (
<div key={msg.id} className={`message ${msg.role}`}>
<div className="message-content">{msg.content}</div>
</div>
))}
{isLoading && (
<div className="message assistant loading">
<div className="message-content">Thinking...</div>
</div>
)}
<div ref={messagesEndRef} />
</div>
<div className="chat-input">
<input
type="text"
value={input}
onChange={(e) => setInput(e.target.value)}
onKeyDown={(e) => e.key === "Enter" && !e.shiftKey && handleSend()}
placeholder={placeholder}
disabled={disabled || isLoading}
/>
<button
onClick={handleSend}
disabled={disabled || isLoading || !input.trim()}
>
Send
</button>
</div>
</div>
);
}
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