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import MessageBubble from './MessageBubble'
import './ChatArea.css'
function ChatArea({
messages,
isLoading,
error,
isAuthenticated,
onSendMessage,
onClearChat,
onDismissError
}) {
const [input, setInput] = useState('')
const messagesEndRef = useRef(null)
const textareaRef = useRef(null)
const scrollToBottom = () => {
messagesEndRef.current?.scrollIntoView({ behavior: 'smooth' })
}
useEffect(() => {
scrollToBottom()
}, [messages])
const handleSubmit = (e) => {
e.preventDefault()
if (input.trim() && !isLoading) {
onSendMessage(input)
setInput('')
if (textareaRef.current) {
textareaRef.current.style.height = 'auto'
}
}
}
const handleKeyDown = (e) => {
if (e.key === 'Enter' && !e.shiftKey) {
e.preventDefault()
handleSubmit(e)
}
}
const handleTextareaChange = (e) => {
setInput(e.target.value)
// Auto-resize textarea
e.target.style.height = 'auto'
e.target.style.height = Math.min(e.target.scrollHeight, 200) + 'px'
}
const suggestedQuestions = [
'What are the key concepts in my documents?',
'Summarize the main ideas',
'Find information about...',
'Compare topics across documents'
]
if (!isAuthenticated) {
return (
<main className="chat-area">
<div className="chat-welcome">
<div className="welcome-icon">
<svg width="64" height="64" viewBox="0 0 24 24" fill="none">
<path
d="M12 2L2 7l10 5 10-5-10-5zM2 17l10 5 10-5M2 12l10 5 10-5"
stroke="url(#welcome-gradient)"
strokeWidth="1.5"
strokeLinecap="round"
strokeLinejoin="round"
/>
<defs>
<linearGradient id="welcome-gradient" x1="2" y1="2" x2="22" y2="22">
<stop stopColor="#6366f1" />
<stop offset="1" stopColor="#a855f7" />
</linearGradient>
</defs>
</svg>
</div>
<h1>VectorMind</h1>
<p>Upload documents and ask questions to get AI-powered answers with source citations</p>
<div className="welcome-features">
<div className="feature-card">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
<path d="M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z" />
<path d="M14 2v6h6M16 13H8M16 17H8M10 9H8" />
</svg>
<h3>Upload Documents</h3>
<p>PDF, TXT, DOCX supported</p>
</div>
<div className="feature-card">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
<path d="M21 15a2 2 0 01-2 2H7l-4 4V5a2 2 0 012-2h14a2 2 0 012 2z" />
</svg>
<h3>Ask Questions</h3>
<p>Natural language queries</p>
</div>
<div className="feature-card">
<svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.5">
<circle cx="11" cy="11" r="8" />
<path d="M21 21l-4.35-4.35" />
</svg>
<h3>Get Citations</h3>
<p>Answers with sources</p>
</div>
</div>
<p className="welcome-cta">Sign in to get started</p>
</div>
</main>
)
}
return (
<main className="chat-area">
{/* Error Toast */}
{error && (
<div className="error-toast animate-fade-in-up">
<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
<circle cx="12" cy="12" r="10" />
<path d="M12 8v4M12 16h.01" />
</svg>
<span>{error}</span>
<button
className="btn btn-ghost btn-icon"
onClick={onDismissError}
>
<svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
<path d="M18 6L6 18M6 6l12 12" />
</svg>
</button>
</div>
)}
{/* Messages Container */}
<div className="messages-container">
<div className="messages-wrapper">
{messages.length === 0 ? (
<div className="chat-empty">
<div className="empty-icon">
<svg width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1">
<path d="M21 15a2 2 0 01-2 2H7l-4 4V5a2 2 0 012-2h14a2 2 0 012 2z" />
</svg>
</div>
<h2>Start a Conversation</h2>
<p>Upload documents and ask questions about their content</p>
<div className="suggested-questions">
<p className="suggestions-label">Try asking:</p>
<div className="suggestions-grid">
{suggestedQuestions.map((q, i) => (
<button
key={i}
className="suggestion-chip"
onClick={() => setInput(q)}
>
{q}
</button>
))}
</div>
</div>
</div>
) : (
<>
{messages.map((msg, index) => (
<MessageBubble
key={msg.id}
message={msg}
isLast={index === messages.length - 1}
/>
))}
{isLoading && (
<div className="message-row assistant loading">
<div className="message-inner">
<div className="role-icon-wrapper">
<div className="role-icon assistant-icon">
<svg width="18" height="18" viewBox="0 0 24 24" fill="none">
<path
d="M12 2L2 7l10 5 10-5-10-5z"
stroke="currentColor"
strokeWidth="1.5"
/>
</svg>
</div>
</div>
<div className="message-body">
<div className="typing-indicator">
<span></span>
<span></span>
<span></span>
</div>
</div>
</div>
</div>
)}
</>
)}
<div ref={messagesEndRef} />
</div>
</div>
{/* Input Area */}
<div className="input-area">
<div className="input-wrapper">
{messages.length > 0 && (
<button
className="btn btn-ghost btn-icon clear-btn"
onClick={onClearChat}
title="Clear chat"
>
<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
<path d="M3 6h18M19 6v14a2 2 0 01-2 2H7a2 2 0 01-2-2V6M8 6V4a2 2 0 012-2h4a2 2 0 012 2v2" />
</svg>
</button>
)}
<form onSubmit={handleSubmit} className="chat-form">
<textarea
ref={textareaRef}
value={input}
onChange={handleTextareaChange}
onKeyDown={handleKeyDown}
placeholder="Ask about your documents..."
rows={1}
disabled={isLoading}
className="chat-input"
/>
<button
type="submit"
className="btn btn-primary send-btn"
disabled={!input.trim() || isLoading}
>
{isLoading ? (
<div className="loading-dots">
<span></span><span></span><span></span>
</div>
) : (
<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
<path d="M22 2L11 13M22 2l-7 20-4-9-9-4 20-7z" />
</svg>
)}
</button>
</form>
</div>
<p className="input-hint">Press Enter to send, Shift+Enter for new line</p>
</div>
</main>
)
}
export default ChatArea
|