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import { motion, AnimatePresence } from 'framer-motion';
import { useState, useRef, useEffect } from 'react';
import { Send, Bot, User, FileCode, Sparkles } from 'lucide-react';
interface Message {
id: string;
role: 'user' | 'assistant';
content: string;
sources?: string[];
}
export default function ChatPage() {
const [messages, setMessages] = useState<Message[]>([]);
const [input, setInput] = useState('');
const [isLoading, setIsLoading] = useState(false);
const messagesEndRef = useRef<HTMLDivElement>(null);
const scrollToBottom = () => {
messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' });
};
useEffect(() => {
scrollToBottom();
}, [messages]);
const handleSubmit = async (e: React.FormEvent) => {
e.preventDefault();
if (!input.trim() || isLoading) return;
const userMessage: Message = {
id: Date.now().toString(),
role: 'user',
content: input,
};
setMessages((prev) => [...prev, userMessage]);
setInput('');
setIsLoading(true);
try {
const response = await fetch('http://localhost:8000/api/chat', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ message: input }),
});
const data = await response.json();
const assistantMessage: Message = {
id: (Date.now() + 1).toString(),
role: 'assistant',
content: data.answer || data.response || 'No response received',
sources: data.sources || [],
};
setMessages((prev) => [...prev, assistantMessage]);
} catch (error) {
setMessages((prev) => [
...prev,
{
id: (Date.now() + 1).toString(),
role: 'assistant',
content: 'Error connecting to backend. Please ensure the API is running.',
},
]);
} finally {
setIsLoading(false);
}
};
const suggestions = [
'Explain how authentication works',
'Find all database queries',
'What are the main entry points?',
'Show me the API endpoints',
];
return (
<div className="flex flex-col h-screen">
{/* Header */}
<motion.header
initial={{ y: -20, opacity: 0 }}
animate={{ y: 0, opacity: 1 }}
className="bg-slate-900/60 backdrop-blur-xl border border-white/10 rounded-2xl p-6 m-4 mb-0 flex items-center justify-between"
>
<div className="flex items-center gap-3">
<div className="w-10 h-10 rounded-xl bg-gradient-to-br from-sky-400 to-violet-500 flex items-center justify-center">
💬
</div>
<div>
<h1 className="font-bold text-lg">Chat Mode</h1>
<p className="text-sm text-slate-400">Ask questions about your codebase</p>
</div>
</div>
</motion.header>
{/* Messages */}
<div className="flex-1 overflow-y-auto p-4 space-y-4">
{messages.length === 0 ? (
<motion.div
initial={{ opacity: 0, y: 20 }}
animate={{ opacity: 1, y: 0 }}
className="flex flex-col items-center justify-center h-full text-center"
>
<Sparkles className="w-16 h-16 text-slate-600 mb-4" />
<h2 className="text-2xl font-bold bg-gradient-to-r from-sky-400 to-violet-400 bg-clip-text text-transparent mb-2">Ask anything about your code</h2>
<p className="text-slate-400 mb-8 max-w-md">
I can explain functions, find patterns, suggest improvements, and more.
</p>
<div className="flex flex-wrap gap-2 justify-center max-w-xl">
{suggestions.map((suggestion, i) => (
<motion.button
key={suggestion}
initial={{ opacity: 0, scale: 0.9 }}
animate={{ opacity: 1, scale: 1 }}
transition={{ delay: i * 0.1 }}
whileHover={{ scale: 1.05 }}
whileTap={{ scale: 0.95 }}
onClick={() => setInput(suggestion)}
className="px-4 py-2 bg-slate-900/60 backdrop-blur-xl border border-white/10 rounded-xl rounded-full text-sm text-slate-300 hover:border-sky-500/50 transition-colors"
>
{suggestion}
</motion.button>
))}
</div>
</motion.div>
) : (
<AnimatePresence>
{messages.map((message, i) => (
<motion.div
key={message.id}
initial={{ opacity: 0, y: 20 }}
animate={{ opacity: 1, y: 0 }}
transition={{ delay: i * 0.05 }}
className={`flex gap-4 ${message.role === 'user' ? 'flex-row-reverse' : ''}`}
>
<div className={`w-10 h-10 rounded-xl flex items-center justify-center shrink-0 ${message.role === 'user'
? 'bg-violet-500/20 text-violet-400'
: 'bg-sky-500/20 text-sky-400'
}`}>
{message.role === 'user' ? <User className="w-5 h-5" /> : <Bot className="w-5 h-5" />}
</div>
<div className={`bg-slate-900/60 backdrop-blur-xl border border-white/10 rounded-2xl p-6 max-w-[70%] ${message.role === 'user'
? 'bg-violet-500/10 border-violet-500/20'
: 'border-sky-500/20'
}`}>
{/* Sources */}
{message.sources && message.sources.length > 0 && (
<div className="flex flex-wrap gap-2 mb-3 pb-3 border-b border-white/10">
{message.sources.map((source, i) => (
<span key={i} className="inline-flex items-center gap-1 px-2 py-1 bg-slate-800 rounded text-xs text-slate-400">
<FileCode className="w-3 h-3" />
{source}
</span>
))}
</div>
)}
<p className="whitespace-pre-wrap">{message.content}</p>
</div>
</motion.div>
))}
</AnimatePresence>
)}
{isLoading && (
<motion.div
initial={{ opacity: 0 }}
animate={{ opacity: 1 }}
className="flex gap-4"
>
<div className="w-10 h-10 rounded-xl bg-sky-500/20 text-sky-400 flex items-center justify-center">
<Bot className="w-5 h-5" />
</div>
<div className="bg-slate-900/60 backdrop-blur-xl border border-white/10 rounded-2xl p-6 border-sky-500/20">
<div className="flex gap-1">
<span className="w-2 h-2 bg-sky-400 rounded-full animate-bounce" style={{ animationDelay: '0ms' }} />
<span className="w-2 h-2 bg-sky-400 rounded-full animate-bounce" style={{ animationDelay: '150ms' }} />
<span className="w-2 h-2 bg-sky-400 rounded-full animate-bounce" style={{ animationDelay: '300ms' }} />
</div>
</div>
</motion.div>
)}
<div ref={messagesEndRef} />
</div>
{/* Input */}
<motion.form
initial={{ y: 20, opacity: 0 }}
animate={{ y: 0, opacity: 1 }}
onSubmit={handleSubmit}
className="p-4"
>
<div className="bg-slate-900/60 backdrop-blur-xl border border-white/10 rounded-2xl p-6 flex items-center gap-4 !p-3">
<input
type="text"
value={input}
onChange={(e) => setInput(e.target.value)}
placeholder="Ask about your codebase..."
className="flex-1 bg-transparent border-none outline-none text-slate-200 placeholder:text-slate-500"
disabled={isLoading}
/>
<motion.button
whileHover={{ scale: 1.1 }}
whileTap={{ scale: 0.9 }}
type="submit"
disabled={isLoading || !input.trim()}
className="w-10 h-10 bg-gradient-to-r from-sky-500 to-violet-500 rounded-xl flex items-center justify-center disabled:opacity-50 disabled:cursor-not-allowed"
>
<Send className="w-5 h-5" />
</motion.button>
</div>
</motion.form>
</div>
);
}
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