Files
Synapsis/src/app/chat/page.tsx
T
Christopher 558c1aecdf Ensure chat key fetches bypass cache
Added `{ cache: 'no-store' }` to fetch requests for chat keys in both the chat page and useSodiumChat hook to prevent stale key data. Also updated the chat key query to order by `lastSeenAt` descending, ensuring the most recent bundle is retrieved.
2026-01-28 07:48:10 -08:00

763 lines
34 KiB
TypeScript

'use client';
import { useState, useEffect, useRef } from 'react';
import { useAuth } from '@/lib/contexts/AuthContext';
import { useSodiumChat } from '@/lib/hooks/useSodiumChat';
import { ArrowLeft, Send, Lock, Shield, Loader2, MessageCircle, Search, Plus, Trash2, MoreVertical } from 'lucide-react';
import { formatFullHandle } from '@/lib/utils/handle';
import { useRouter, useSearchParams } from 'next/navigation';
interface Conversation {
id: string;
participant2: {
handle: string;
displayName: string;
avatarUrl: string | null;
did?: string; // Add DID support
};
lastMessageAt: string;
lastMessagePreview: string;
unreadCount: number;
}
interface Message {
id: string;
senderHandle: string;
senderDisplayName?: string;
senderAvatarUrl?: string;
senderDid?: string; // V2 needs DID
senderPublicKey?: string; // Legacy
encryptedContent: string;
decryptedContent?: string;
isSentByMe: boolean;
deliveredAt?: string;
readAt?: string;
createdAt: string;
}
export default function ChatPage() {
const { user, isIdentityUnlocked, setShowUnlockPrompt } = useAuth();
const router = useRouter();
// Libsodium E2EE Hook
const { isReady, status, sendMessage, decryptMessage } = useSodiumChat();
const searchParams = useSearchParams();
const composeHandle = searchParams.get('compose');
// Chat Data State
const [conversations, setConversations] = useState<Conversation[]>([]);
const [selectedConversation, setSelectedConversation] = useState<Conversation | null>(null);
const [messages, setMessages] = useState<Message[]>([]);
const [newMessage, setNewMessage] = useState('');
const [newChatHandle, setNewChatHandle] = useState('');
const [showNewChat, setShowNewChat] = useState(false);
const [loading, setLoading] = useState(true);
const [sending, setSending] = useState(false);
const [searchQuery, setSearchQuery] = useState('');
const [loadingMessages, setLoadingMessages] = useState(false);
// Cache for decrypted messages to avoid re-decrypting on every poll
const decryptedCacheRef = useRef<Map<string, string>>(new Map());
// Track which messages we've attempted to decrypt (even if they failed)
const attemptedDecryptionRef = useRef<Set<string>>(new Set());
// Track the current conversation ID to prevent race conditions
const currentConversationIdRef = useRef<string | null>(null);
// Legacy / V2 Hybrid State
const [showDeleteModal, setShowDeleteModal] = useState(false);
const [conversationToDelete, setConversationToDelete] = useState<Conversation | null>(null);
const [isDeleting, setIsDeleting] = useState(false);
const messagesEndRef = useRef<HTMLDivElement>(null);
const messagesContainerRef = useRef<HTMLDivElement>(null);
const [isAtBottom, setIsAtBottom] = useState(true);
// ============================================
// HELPER FUNCTIONS (Defined before useEffects)
// ============================================
// Check if user is scrolled to bottom
const checkIfAtBottom = () => {
if (!messagesContainerRef.current) return true;
const { scrollTop, scrollHeight, clientHeight } = messagesContainerRef.current;
const threshold = 100; // pixels from bottom
return scrollHeight - scrollTop - clientHeight < threshold;
};
// Handle scroll to track if user is at bottom
const handleScroll = () => {
setIsAtBottom(checkIfAtBottom());
};
// Scroll to bottom manually
const scrollToBottom = () => {
if (messagesEndRef.current) {
messagesEndRef.current.scrollIntoView({ behavior: 'smooth' });
}
};
const loadConversations = async (isInitialLoad = false) => {
if (isInitialLoad) setLoading(true);
try {
const res = await fetch('/api/swarm/chat/conversations');
const data = await res.json();
setConversations(data.conversations || []);
} catch (e) {
console.error("Failed to load conversations", e);
} finally {
if (isInitialLoad) setLoading(false);
}
};
const loadMessages = async (conversationId: string) => {
try {
const res = await fetch(`/api/swarm/chat/messages?conversationId=${conversationId}`);
const data = await res.json();
const decrypted = await Promise.all((data.messages || []).map(async (msg: any) => {
try {
// Check cache first
const cacheKey = `${msg.id}`;
const cached = decryptedCacheRef.current.get(cacheKey);
if (cached) {
return { ...msg, decryptedContent: cached };
}
// Check if already attempted
if (attemptedDecryptionRef.current.has(cacheKey)) {
const fallback = decryptedCacheRef.current.get(cacheKey) || '🔒 [Encrypted]';
return { ...msg, decryptedContent: fallback };
}
// Mark as attempted
attemptedDecryptionRef.current.add(cacheKey);
// Parse libsodium message format
if (msg.encryptedContent && msg.encryptedContent.startsWith('{')) {
try {
const envelope = JSON.parse(msg.encryptedContent);
// Libsodium format: {senderPublicKey, recipientDid, ciphertext, nonce}
if (envelope.senderPublicKey && envelope.ciphertext && envelope.nonce) {
// For decryption with crypto_box_open_easy:
// - We need the OTHER party's public key
// - We use OUR private key
// If I sent this message, the "other party" is the recipient
// If I received this message, the "other party" is the sender
let otherPartyPublicKey = envelope.senderPublicKey;
if (msg.isSentByMe && envelope.recipientDid) {
// I'm the sender, so I need the recipient's public key to decrypt my own message
try {
const keyRes = await fetch(`/api/chat/keys?did=${encodeURIComponent(envelope.recipientDid)}`, { cache: 'no-store' });
if (keyRes.ok) {
const keyData = await keyRes.json();
otherPartyPublicKey = keyData.publicKey;
}
} catch (e) {
console.error('[Chat UI] Failed to fetch recipient key:', e);
}
} else {
// Using sender public key from envelope
}
const plaintext = await decryptMessage(
envelope.ciphertext,
envelope.nonce,
otherPartyPublicKey
);
decryptedCacheRef.current.set(cacheKey, plaintext);
return { ...msg, decryptedContent: plaintext };
}
} catch (e) {
console.error('[Chat UI] Libsodium decryption failed:', e);
}
}
// Fallback
const fallback = '🔒 [Encrypted - refresh page]';
decryptedCacheRef.current.set(cacheKey, fallback);
return { ...msg, decryptedContent: fallback };
} catch (err) {
console.error('[Chat UI] Message processing error:', err);
return { ...msg, decryptedContent: '[Error]' };
}
}));
setMessages(decrypted);
} catch (err) {
console.error('[Chat UI] Load messages error:', err);
}
};
const markAsRead = async (conversationId: string) => {
try {
await fetch('/api/swarm/chat/messages', {
method: 'PATCH',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ conversationId })
});
setConversations(prev => prev.map(c => c.id === conversationId ? { ...c, unreadCount: 0 } : c));
} catch { }
};
const handleSendMessage = async (e: React.FormEvent) => {
e.preventDefault();
if (!newMessage.trim() || !selectedConversation) return;
setSending(true);
try {
// Get recipient DID
let did = selectedConversation.participant2.did;
if (!did) {
const res = await fetch(`/api/users/${encodeURIComponent(selectedConversation.participant2.handle)}`);
const data = await res.json();
did = data.user?.did;
if (!did) throw new Error('User not found');
}
// Send using Signal Protocol
await sendMessage(did, newMessage, selectedConversation.participant2.handle);
setNewMessage('');
// If this was a new conversation, we need to refresh the conversation list and select the real one
if (selectedConversation.id === 'new') {
// Refresh conversations to get the new ID
const res = await fetch('/api/swarm/chat/conversations');
const data = await res.json();
const updatedConversations = data.conversations || [];
setConversations(updatedConversations);
// Find the real conversation
const realConv = updatedConversations.find((c: Conversation) =>
c.participant2.handle === selectedConversation.participant2.handle
);
if (realConv) {
setSelectedConversation(realConv);
loadMessages(realConv.id);
}
} else {
await loadMessages(selectedConversation.id);
loadConversations(false);
}
} catch (err: any) {
console.error('[Send] Error:', err);
alert(`Failed: ${err.message}`);
} finally {
setSending(false);
}
};
const startNewChat = async (e: React.FormEvent) => {
e.preventDefault();
if (!newChatHandle.trim()) return;
setSending(true);
try {
let cleanHandle = newChatHandle.replace(/^@/, '');
// If the handle includes a domain, check if it's our local domain
if (cleanHandle.includes('@')) {
const [handle, domain] = cleanHandle.split('@');
const localDomain = process.env.NEXT_PUBLIC_NODE_DOMAIN || window.location.host;
// If it's our local domain, strip it for the API call
if (domain === localDomain) {
cleanHandle = handle;
}
}
const res = await fetch(`/api/users/${encodeURIComponent(cleanHandle)}`);
const data = await res.json();
if (!data.user?.did) {
alert('User not found or Olm encryption not enabled.');
setSending(false);
return;
}
// Check if existing conversation
const existing = conversations.find(c =>
c.participant2.handle.toLowerCase() === data.user.handle.toLowerCase()
);
if (existing) {
setSelectedConversation(existing);
} else {
// Setup draft
const draftConv: Conversation = {
id: 'new',
participant2: {
handle: data.user.handle,
displayName: data.user.displayName || data.user.handle,
avatarUrl: data.user.avatarUrl,
did: data.user.did
},
lastMessageAt: new Date().toISOString(),
lastMessagePreview: 'New Conversation',
unreadCount: 0
};
setSelectedConversation(draftConv);
}
setShowNewChat(false);
setNewChatHandle('');
} catch (e: any) {
console.error('[Chat UI] Start chat failed:', e);
if (e.message.includes('Recipient keys not found') || e.message.includes('Failed to fetch recipient keys')) {
alert('This user has not set up secure chat yet. They need to log in to enable end-to-end encryption.');
} else {
alert('Failed to start chat: ' + e.message);
}
} finally {
setSending(false);
}
};
const handleDeleteConversation = async (deleteFor: 'self' | 'both') => {
if (!conversationToDelete) return;
setIsDeleting(true);
try {
const res = await fetch(`/api/swarm/chat/conversations/${conversationToDelete.id}?deleteFor=${deleteFor}`, {
method: 'DELETE',
});
if (res.ok) {
setConversations(prev => prev.filter(c => c.id !== conversationToDelete.id));
if (selectedConversation?.id === conversationToDelete.id) {
setSelectedConversation(null);
}
setShowDeleteModal(false);
setConversationToDelete(null);
}
} catch (err) {
alert('Failed to delete');
} finally {
setIsDeleting(false);
}
};
// ============================================
// EFFECTS (Now that functions are defined)
// ============================================
// Load conversations
useEffect(() => {
if (user && isReady) {
loadConversations(true); // Initial load with spinner
// Poll for new conversations every 5 seconds (no spinner)
const pollInterval = setInterval(() => {
loadConversations(false);
}, 5000);
return () => clearInterval(pollInterval);
}
}, [user, isReady]);
// Handle Compose Intent
useEffect(() => {
if (composeHandle && isReady && !selectedConversation && conversations.length >= 0) {
// Check if we already have a conversation with this user
const existing = conversations.find(c =>
c.participant2.handle.toLowerCase() === composeHandle.toLowerCase()
);
if (existing) {
setSelectedConversation(existing);
// Clear the query param so refresh doesn't keep resetting state
router.replace('/chat', { scroll: false });
} else if (!loading) {
// Fetch user details to create a draft conversation
const fetchUserAndInitDraft = async () => {
try {
const res = await fetch(`/api/users/${encodeURIComponent(composeHandle)}`);
const data = await res.json();
if (data.user) {
const draftConv: Conversation = {
id: 'new',
participant2: {
handle: data.user.handle,
displayName: data.user.displayName || data.user.handle,
avatarUrl: data.user.avatarUrl,
did: data.user.did
},
lastMessageAt: new Date().toISOString(),
lastMessagePreview: 'New Conversation',
unreadCount: 0
};
setSelectedConversation(draftConv);
router.replace('/chat', { scroll: false });
} else {
// User not found, clear compose param to show list
console.error('User not found for compose');
router.replace('/chat');
}
} catch (e) {
console.error("Failed to load user for compose", e);
router.replace('/chat');
}
};
fetchUserAndInitDraft();
}
}
}, [composeHandle, isReady, selectedConversation, conversations, loading, router]);
// Redirect if not logged in
useEffect(() => {
if (user === null) {
router.push('/login');
}
}, [user, router]);
// Load messages when conversation is selected
useEffect(() => {
if (selectedConversation && isReady) {
// Update current conversation ref
currentConversationIdRef.current = selectedConversation.id;
// Clear messages immediately to prevent flash
setMessages([]);
if (selectedConversation.id === 'new') {
setLoadingMessages(false);
return; // Don't load messages for new/draft conversation
}
setLoadingMessages(true);
loadMessages(selectedConversation.id);
markAsRead(selectedConversation.id);
// Poll for new messages every 3 seconds
const pollInterval = setInterval(() => {
// Only load if still the same conversation
if (currentConversationIdRef.current === selectedConversation.id && selectedConversation.id !== 'new') {
loadMessages(selectedConversation.id);
}
}, 3000);
return () => clearInterval(pollInterval);
} else if (!selectedConversation) {
// Clear messages when no conversation selected
currentConversationIdRef.current = null;
setMessages([]);
setLoadingMessages(false);
}
}, [selectedConversation, isReady]);
// Auto-scroll to bottom of messages only if user was already at bottom
useEffect(() => {
if (messagesEndRef.current && isAtBottom) {
messagesEndRef.current.scrollIntoView({ behavior: 'smooth' });
}
}, [messages, isAtBottom]);
// ============================================
// RENDER LOGIC
// ============================================
const filteredConversations = conversations.filter((conv) =>
conv.participant2.displayName?.toLowerCase().includes(searchQuery.toLowerCase()) ||
conv.participant2.handle.toLowerCase().includes(searchQuery.toLowerCase())
);
if (user === null) return null;
// Identity Locked State
if (!isIdentityUnlocked) {
return (
<div style={{ display: 'flex', flexDirection: 'column', height: '100vh', alignItems: 'center', justifyContent: 'center', gap: '16px', padding: '24px' }}>
<Lock size={48} style={{ color: 'rgb(251, 191, 36)' }} />
<h2 style={{ fontSize: '20px', fontWeight: 600 }}>Identity Locked</h2>
<p style={{ color: 'var(--foreground-secondary)', maxWidth: '400px', textAlign: 'center' }}>
End-to-end encrypted chat requires your identity to be unlocked. Your private keys are needed to encrypt and decrypt messages.
</p>
<button
onClick={() => setShowUnlockPrompt(true)}
className="btn btn-primary"
style={{ display: 'flex', alignItems: 'center', gap: '8px' }}
>
<Shield size={16} />
Unlock Identity
</button>
</div>
);
}
// Error State
if (status === 'error') {
return (
<div style={{ display: 'flex', flexDirection: 'column', height: '100vh', alignItems: 'center', justifyContent: 'center', gap: '16px' }}>
<Shield size={48} style={{ color: 'var(--destructive)' }} />
<h2 style={{ fontSize: '20px', fontWeight: 600 }}>Connection Failed</h2>
<p style={{ color: 'var(--foreground-secondary)', maxWidth: '300px', textAlign: 'center' }}>
Unable to initialize secure chat. Please refresh the page to try again.
</p>
<button
onClick={() => window.location.reload()}
className="btn btn-primary"
>
Refresh Page
</button>
</div>
);
}
// Loading State
if (!isReady || status === 'initializing') {
return (
<div style={{ display: 'flex', flexDirection: 'column', height: '100vh', alignItems: 'center', justifyContent: 'center' }}>
<Loader2 className="animate-spin" size={32} />
</div>
);
}
// Prevent flash of list view while processing compose intent
if (composeHandle && !selectedConversation) {
return (
<div style={{ display: 'flex', flexDirection: 'column', height: '100vh', alignItems: 'center', justifyContent: 'center' }}>
<Loader2 className="animate-spin" size={32} />
</div>
);
}
// Thread View
if (selectedConversation) {
return (
<div style={{ display: 'flex', flexDirection: 'column', height: '100vh', maxWidth: '600px', margin: '0 auto' }}>
{/* Header */}
<div className="post" style={{ position: 'sticky', top: 0, zIndex: 10, background: 'var(--background)', borderBottom: '1px solid var(--border)', flexShrink: 0 }}>
<div style={{ display: 'flex', alignItems: 'center', gap: '12px' }}>
<button
onClick={() => setSelectedConversation(null)}
style={{ background: 'none', border: 'none', padding: '8px', cursor: 'pointer', color: 'var(--foreground)' }}
>
<ArrowLeft size={20} />
</button>
<div className="avatar">
{selectedConversation.participant2.avatarUrl ? (
<img src={selectedConversation.participant2.avatarUrl} alt="" />
) : (
selectedConversation.participant2.displayName[0] || '?'
)}
</div>
<div style={{ flex: 1, minWidth: 0 }}>
<div style={{ fontWeight: 600 }}>{selectedConversation.participant2.displayName}</div>
<div style={{ fontSize: '13px', color: 'var(--foreground-tertiary)' }}>
{formatFullHandle(selectedConversation.participant2.handle)}
</div>
</div>
<button
onClick={() => { setConversationToDelete(selectedConversation); setShowDeleteModal(true); }}
style={{ background: 'none', border: 'none', cursor: 'pointer', color: 'var(--foreground-tertiary)' }}
>
<Trash2 size={18} />
</button>
</div>
</div>
{/* Messages */}
<div
ref={messagesContainerRef}
onScroll={handleScroll}
style={{
padding: '16px',
flex: 1,
overflowY: 'auto',
paddingBottom: '16px',
position: 'relative'
}}
>
<div style={{ display: 'flex', flexDirection: 'column', gap: '16px' }}>
{messages.map((msg, i) => (
<div key={msg.id || i} style={{
display: 'flex',
gap: '12px',
maxWidth: '70%',
marginLeft: msg.isSentByMe ? 'auto' : '0',
flexDirection: msg.isSentByMe ? 'row-reverse' : 'row'
}}>
<div className="avatar avatar-sm" style={{ flexShrink: 0 }}>
{msg.isSentByMe ? (
user.avatarUrl ? <img src={user.avatarUrl} alt="" /> : user.displayName[0]
) : (
msg.senderAvatarUrl ? <img src={msg.senderAvatarUrl} alt="" /> : msg.senderDisplayName?.[0]
)}
</div>
<div style={{ display: 'flex', flexDirection: 'column', alignItems: msg.isSentByMe ? 'flex-end' : 'flex-start' }}>
<div style={{
padding: '10px 14px',
borderRadius: '16px',
background: msg.isSentByMe ? 'var(--accent)' : 'var(--background-secondary)',
color: msg.isSentByMe ? '#000' : 'var(--foreground)',
border: msg.isSentByMe ? 'none' : '1px solid var(--border)',
wordBreak: 'break-word'
}}>
{msg.decryptedContent || msg.encryptedContent}
</div>
<div style={{ fontSize: '11px', color: 'var(--foreground-tertiary)', marginTop: '4px' }}>
{new Date(msg.createdAt).toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' })}
</div>
</div>
</div>
))}
<div ref={messagesEndRef} />
</div>
</div>
{/* Input */}
<div className="compose" style={{ borderTop: '1px solid var(--border)', background: 'var(--background)', flexShrink: 0 }}>
<form onSubmit={handleSendMessage} style={{ display: 'flex', gap: '8px', alignItems: 'center' }}>
<input
type="text"
className="input"
style={{ flex: 1 }}
placeholder="Type a message..."
value={newMessage}
onChange={e => setNewMessage(e.target.value)}
/>
<button type="submit" disabled={!newMessage.trim() || sending} className="btn btn-primary">
{sending ? <Loader2 size={18} className="animate-spin" /> : <Send size={18} />}
</button>
</form>
</div>
{/* Delete Modal */}
{showDeleteModal && (
<div style={{
position: 'fixed',
inset: 0,
background: 'rgba(0,0,0,0.5)',
display: 'flex',
alignItems: 'center',
justifyContent: 'center',
zIndex: 50
}}>
<div style={{
background: 'var(--background)',
padding: '24px',
borderRadius: '16px',
width: '100%',
maxWidth: '320px',
boxShadow: '0 4px 12px rgba(0,0,0,0.1)'
}}>
<h3 style={{ marginTop: 0, fontSize: '18px', fontWeight: 600 }}>Delete Conversation</h3>
<p style={{ color: 'var(--foreground-secondary)', fontSize: '14px', marginBottom: '24px' }}>
This action cannot be undone.
</p>
<div style={{ display: 'flex', flexDirection: 'column', gap: '8px' }}>
<button
disabled={isDeleting}
onClick={() => handleDeleteConversation('self')}
className="btn"
style={{ justifyContent: 'center', width: '100%' }}
>
Delete for me
</button>
<button
disabled={isDeleting}
onClick={() => handleDeleteConversation('both')}
className="btn btn-danger" // Assuming btn-danger exists or falls back
style={{ justifyContent: 'center', width: '100%', color: 'var(--destructive)', background: 'var(--destructive-10)' }}
>
Delete for everyone
</button>
<button
disabled={isDeleting}
onClick={() => setShowDeleteModal(false)}
className="btn btn-ghost"
style={{ justifyContent: 'center', width: '100%' }}
>
Cancel
</button>
</div>
</div>
</div>
)}
</div>
);
}
// LIST VIEW
return (
<>
<div className="post" style={{ position: 'sticky', top: 0, zIndex: 10, background: 'var(--background)', borderBottom: '1px solid var(--border)' }}>
<div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', marginBottom: '16px' }}>
<h1 style={{ fontSize: '20px', fontWeight: 600, margin: 0 }}>Messages</h1>
<button onClick={() => setShowNewChat(true)} className="btn btn-primary btn-sm">
<Plus size={16} style={{ marginRight: 6 }} /> New
</button>
</div>
{showNewChat ? (
<form onSubmit={startNewChat} style={{ display: 'flex', flexDirection: 'column', gap: '12px' }}>
<input
type="text"
placeholder="@username"
className="input"
value={newChatHandle}
onChange={e => setNewChatHandle(e.target.value)}
autoFocus
/>
<div style={{ display: 'flex', justifyContent: 'flex-end', gap: '8px' }}>
<button type="button" onClick={() => setShowNewChat(false)} className="btn btn-ghost btn-sm">Cancel</button>
<button type="submit" className="btn btn-primary btn-sm" disabled={sending}>Start</button>
</div>
</form>
) : (
<div style={{ display: 'flex', alignItems: 'center', gap: '8px', background: 'var(--background-secondary)', borderRadius: 'var(--radius-full)', padding: '8px 16px', border: '1px solid var(--border)' }}>
<Search size={16} style={{ color: 'var(--foreground-tertiary)' }} />
<input
type="text"
placeholder="Search..."
style={{ background: 'transparent', border: 'none', outline: 'none', flex: 1, color: 'var(--foreground)' }}
value={searchQuery}
onChange={e => setSearchQuery(e.target.value)}
/>
</div>
)}
</div>
{loading ? (
<div style={{ display: 'flex', justifyContent: 'center', padding: '48px' }}>
<Loader2 className="animate-spin" size={32} />
</div>
) : filteredConversations.length === 0 ? (
<div style={{ textAlign: 'center', padding: '48px 16px', color: 'var(--foreground-tertiary)' }}>
<MessageCircle size={48} style={{ margin: '0 auto 16px', opacity: 0.5 }} />
<p>No conversations yet</p>
</div>
) : (
filteredConversations.map(conv => (
<div
key={conv.id}
className="post"
onClick={() => {
setMessages([]);
setSelectedConversation(conv);
}}
style={{ cursor: 'pointer', display: 'flex', alignItems: 'flex-start', gap: '12px' }}
>
<div className="avatar">
{conv.participant2.avatarUrl ? <img src={conv.participant2.avatarUrl} alt="" /> : conv.participant2.displayName[0]}
</div>
<div style={{ flex: 1, minWidth: 0 }}>
<div style={{ display: 'flex', justifyContent: 'space-between' }}>
<span style={{ fontWeight: 600 }}>{conv.participant2.displayName}</span>
{conv.unreadCount > 0 && <span className="badge">{conv.unreadCount}</span>}
</div>
<div style={{ fontSize: '13px', color: 'var(--foreground-secondary)', whiteSpace: 'nowrap', overflow: 'hidden', textOverflow: 'ellipsis' }}>
{conv.lastMessagePreview}
</div>
</div>
</div>
))
)}
</>
);
}