File size: 3,385 Bytes
212c959 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | import { forwardRef, useState } from 'react'
import MessageBubble from './MessageBubble'
const SUGGESTIONS = [
{ emoji: '🌐', title: 'Latest AI news', text: 'What are the latest developments in AI this week?' },
{ emoji: '💡', title: 'Explain quantum computing', text: 'Explain quantum computing in simple terms' },
{ emoji: '📝', title: 'Write a cover letter', text: 'Write me a professional cover letter for a software engineer role' },
{ emoji: '🐛', title: 'Debug my code', text: 'Help me debug and optimize my Python code' },
{ emoji: '📊', title: 'Data analysis help', text: 'Help me analyze data and create visualizations' },
{ emoji: '🎨', title: 'Creative writing', text: 'Write a short sci-fi story set in the year 2150' },
]
const EmptyState = ({ onSuggestion }) => (
<div className="empty-state">
<div className="empty-logo">✦</div>
<div className="empty-title">What can I help with?</div>
<div className="empty-sub">
Ask me anything — code, research, writing, math, or just a conversation.
I'm powered by the world's best AI models.
</div>
<div className="suggestion-grid">
{SUGGESTIONS.map((s, i) => (
<button key={s.title} className="suggestion-card" style={{ animation: `fadeUp 0.4s var(--ease) ${0.1 + i*0.05}s both` }} onClick={() => onSuggestion(s.text)}>
<strong>{s.emoji} {s.title}</strong>
{s.text}
</button>
))}
</div>
</div>
)
const TypingIndicator = () => (
<div className="msg-row" style={{ animationDelay: '0ms' }}>
<div className="msg-indicator ai">✦</div>
<div className="msg-card" style={{ padding: '14px 20px' }}>
<div className="typing-wave">
<div className="typing-dot" />
<div className="typing-dot" />
<div className="typing-dot" />
</div>
</div>
</div>
)
const ChatArea = forwardRef(function ChatArea({ messages, loading, onSuggestion, user }, ref) {
const [showFab, setShowFab] = useState(false)
const handleScroll = (e) => {
const { scrollTop, scrollHeight, clientHeight } = e.target
if (scrollHeight - scrollTop - clientHeight > 200) {
setShowFab(true)
} else {
setShowFab(false)
}
}
const scrollToBottom = () => {
if (ref.current) {
ref.current.scrollTo({ top: ref.current.scrollHeight, behavior: 'smooth' })
}
}
return (
<div className="chat-area" ref={ref} onScroll={handleScroll}>
<div className="chat-inner">
{messages.length === 0 && !loading ? (
<EmptyState onSuggestion={onSuggestion} />
) : (
<>
{messages.map((m, i) => (
<MessageBubble key={m._id || i} message={m} index={i} user={user} />
))}
{loading && (messages.length === 0 || messages[messages.length - 1].role !== 'assistant') && <TypingIndicator />}
</>
)}
</div>
<button
className={`scroll-fab ${showFab ? 'visible' : ''}`}
onClick={scrollToBottom}
title="Scroll to bottom"
>
<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
<line x1="12" y1="5" x2="12" y2="19"/><polyline points="19 12 12 19 5 12"/>
</svg>
</button>
</div>
)
})
export default ChatArea
|