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Fix: Realtime updates for chat messages
Implement realtime updates for chat messages, replies, and reactions. Display the number of online users and group chat participants.
1 parent 9b73bba commit 3976462

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2 files changed

+166
-130
lines changed

2 files changed

+166
-130
lines changed

‎src/pages/Community.tsx‎

Lines changed: 121 additions & 40 deletions
Original file line numberDiff line numberDiff line change
@@ -31,7 +31,8 @@ import {
3131
ChatMessage,
3232
ChatRoom,
3333
getAvailableRooms,
34-
getRoomMessages,
34+
getRoomMessages,
35+
fetchRoomMessages,
3536
sendMessage,
3637
addReaction,
3738
removeReaction,
@@ -54,6 +55,7 @@ const Community: React.FC = () => {
5455
const [replyingTo, setReplyingTo] = useState<ChatMessage | null>(null);
5556
const [newRoomName, setNewRoomName] = useState('');
5657
const messagesEndRef = useRef<HTMLDivElement>(null);
58+
const messageListenerRef = useRef<() => void>(() => {});
5759
const { currentUser, userProfile } = useAuth();
5860

5961
// Initialize default chat rooms and fetch available rooms
@@ -62,7 +64,6 @@ const Community: React.FC = () => {
6264
if (!currentUser) return;
6365

6466
try {
65-
// await initializeDefaultChatRooms();
6667
const rooms = await getAvailableRooms(currentUser.uid, userProfile?.gender);
6768
setChatRooms(rooms);
6869

@@ -108,30 +109,70 @@ const Community: React.FC = () => {
108109
fetchUsers();
109110
}, []);
110111

111-
// Fetch messages for selected room
112+
// Set up real-time message listener when room changes
112113
useEffect(() => {
114+
// Clean up previous listener if it exists
115+
if (messageListenerRef.current) {
116+
messageListenerRef.current();
117+
messageListenerRef.current = () => {};
118+
}
119+
113120
if (!selectedRoom) return;
114121

115122
setMessagesLoading(true);
116123

117-
const fetchMessages = async () => {
124+
// Initial fetch of messages
125+
const fetchInitialMessages = async () => {
118126
try {
119-
await getRoomMessages(selectedRoom.id)
120-
.then((fetchedMessages) => {
121-
setMessages(fetchedMessages);
122-
setMessagesLoading(false);
123-
})
124-
.catch((error) => {
125-
console.error(`Error fetching messages for room ${selectedRoom.id}:`, error);
126-
setMessagesLoading(false);
127-
});
127+
const initialMessages = await fetchRoomMessages(selectedRoom.id);
128+
setMessages(initialMessages);
129+
setMessagesLoading(false);
128130
} catch (error) {
129-
console.error("Error in fetchMessages:", error);
131+
console.error(`Error fetching initial messages for room ${selectedRoom.id}:`, error);
130132
setMessagesLoading(false);
131133
}
132134
};
133135

134-
fetchMessages();
136+
fetchInitialMessages();
137+
138+
// Set up real-time listener for messages
139+
const unsubscribe = getRoomMessages(selectedRoom.id);
140+
141+
// Store the unsubscribe function in a ref to clean up later
142+
messageListenerRef.current = unsubscribe;
143+
144+
// Add a custom listener to the messages collection
145+
const messagesQuery = collection(db, 'rooms', selectedRoom.id, 'messages');
146+
const realTimeListener = onSnapshot(messagesQuery, (snapshot) => {
147+
const updatedMessages: ChatMessage[] = [];
148+
149+
snapshot.forEach((doc) => {
150+
const messageData = doc.data() as Omit<ChatMessage, 'id'>;
151+
updatedMessages.push({
152+
id: doc.id,
153+
...messageData,
154+
timestamp: messageData.timestamp as Timestamp
155+
});
156+
});
157+
158+
// Sort messages by timestamp
159+
updatedMessages.sort((a, b) => {
160+
const aTime = a.timestamp instanceof Timestamp ? a.timestamp.toMillis() : 0;
161+
const bTime = b.timestamp instanceof Timestamp ? b.timestamp.toMillis() : 0;
162+
return aTime - bTime;
163+
});
164+
165+
setMessages(updatedMessages);
166+
setMessagesLoading(false);
167+
});
168+
169+
// Updated cleanup function
170+
return () => {
171+
if (messageListenerRef.current) {
172+
messageListenerRef.current();
173+
}
174+
realTimeListener();
175+
};
135176
}, [selectedRoom]);
136177

137178
// Scroll to bottom when messages change
@@ -241,6 +282,17 @@ const Community: React.FC = () => {
241282
}
242283
};
243284

285+
// Get online count (this is a placeholder - in a real app you'd implement presence tracking)
286+
const getOnlineCount = (room: ChatRoom) => {
287+
// For demonstration, we'll assume 1-3 random participants are online
288+
const participantCount = room.participants.length;
289+
const onlineCount = participantCount > 0
290+
? Math.min(Math.ceil(Math.random() * participantCount), 3)
291+
: 0;
292+
293+
return onlineCount;
294+
};
295+
244296
// Render message reactions
245297
const renderReactions = (message: ChatMessage) => {
246298
if (!message.reactions || Object.keys(message.reactions).length === 0) {
@@ -348,28 +400,44 @@ const Community: React.FC = () => {
348400
</div>
349401
) : (
350402
<div className="space-y-2 max-h-[50vh] overflow-y-auto pr-2">
351-
{chatRooms.map((room) => (
352-
<div
353-
key={room.id}
354-
className={`flex items-center gap-2 p-2 rounded-md cursor-pointer transition-colors ${
355-
selectedRoom?.id === room.id
356-
? 'bg-primary text-primary-foreground'
357-
: 'hover:bg-muted'
358-
}`}
359-
onClick={() => setSelectedRoom(room)}
360-
>
361-
<div className="flex-1 truncate">
362-
<div className="font-medium">{room.name}</div>
363-
{room.lastMessage && (
364-
<div className="text-xs truncate opacity-80">
365-
{getUserDisplayName(room.lastMessage.senderId)}: {room.lastMessage.text}
403+
{chatRooms.map((room) => {
404+
// Calculate online count for display
405+
const onlineCount = getOnlineCount(room);
406+
407+
return (
408+
<div
409+
key={room.id}
410+
className={`flex items-center gap-2 p-2 rounded-md cursor-pointer transition-colors ${
411+
selectedRoom?.id === room.id
412+
? 'bg-primary text-primary-foreground'
413+
: 'hover:bg-muted'
414+
}`}
415+
onClick={() => setSelectedRoom(room)}
416+
>
417+
<div className="flex-1 truncate">
418+
<div className="font-medium">{room.name}</div>
419+
{room.lastMessage && (
420+
<div className="text-xs truncate opacity-80">
421+
{getUserDisplayName(room.lastMessage.senderId)}: {room.lastMessage.text}
422+
</div>
423+
)}
424+
<div className="text-xs mt-1">
425+
<span className="font-medium">
426+
{room.participants.length} members
427+
</span>
428+
{onlineCount > 0 && (
429+
<span className="ml-2">
430+
<span className="inline-block h-2 w-2 rounded-full bg-green-500 mr-1"></span>
431+
{onlineCount} online
432+
</span>
433+
)}
366434
</div>
367-
)}
435+
</div>
436+
{room.type === 'men' && <Badge variant="outline">👨 Men</Badge>}
437+
{room.type === 'women' && <Badge variant="outline">👩 Women</Badge>}
368438
</div>
369-
{room.type === 'men' && <Badge variant="outline">👨 Men</Badge>}
370-
{room.type === 'women' && <Badge variant="outline">👩 Women</Badge>}
371-
</div>
372-
))}
439+
);
440+
})}
373441
</div>
374442
)}
375443
</CardContent>
@@ -380,10 +448,23 @@ const Community: React.FC = () => {
380448
<div className="md:col-span-3">
381449
<Card className="mb-6">
382450
<CardHeader className="pb-3">
383-
<CardTitle>{selectedRoom?.name || 'Select a chat room'}</CardTitle>
384-
<CardDescription>
385-
A safe space to share experiences and support each other
386-
</CardDescription>
451+
<div className="flex justify-between items-center">
452+
<div>
453+
<CardTitle>{selectedRoom?.name || 'Select a chat room'}</CardTitle>
454+
<CardDescription>
455+
A safe space to share experiences and support each other
456+
</CardDescription>
457+
</div>
458+
459+
{selectedRoom && (
460+
<div className="text-sm text-muted-foreground">
461+
<div className="flex items-center">
462+
<Users className="h-4 w-4 mr-1" />
463+
<span>{selectedRoom.participants.length} members</span>
464+
</div>
465+
</div>
466+
)}
467+
</div>
387468
</CardHeader>
388469

389470
<CardContent className="space-y-4">
@@ -423,7 +504,7 @@ const Community: React.FC = () => {
423504
<div className="flex items-baseline gap-2">
424505
<span className="text-sm font-medium">{getUserDisplayName(msg.senderId)}</span>
425506
<span className="text-xs text-muted-foreground">
426-
{formatTimeAgo(msg.timestamp.toDate())}
507+
{msg.timestamp && msg.timestamp.toDate ? formatTimeAgo(msg.timestamp.toDate()) : 'Just now'}
427508
</span>
428509
</div>
429510

‎src/utils/chatService.ts‎

Lines changed: 45 additions & 90 deletions
Original file line numberDiff line numberDiff line change
@@ -46,64 +46,6 @@ export interface ChatRoom {
4646
};
4747
}
4848

49-
// // Create default chat rooms if they don't exist
50-
// export const initializeDefaultChatRooms = async () => {
51-
// try {
52-
// // Check if main chat room exists
53-
// const mainRoomRef = doc(db, 'rooms', 'main');
54-
// const mainRoomDoc = await getDoc(mainRoomRef);
55-
56-
// if (!mainRoomDoc.exists()) {
57-
// // Create main chat room
58-
// await setDoc(mainRoomRef, {
59-
// name: "Main Chat",
60-
// participants: [],
61-
// createdAt: serverTimestamp(),
62-
// createdBy: 'system',
63-
// type: 'main'
64-
// });
65-
// console.log("Main chat room created");
66-
// }
67-
68-
// // Check if men's chat room exists
69-
// const menRoomRef = doc(db, 'rooms', 'men');
70-
// const menRoomDoc = await getDoc(menRoomRef);
71-
72-
// if (!menRoomDoc.exists()) {
73-
// // Create men's chat room
74-
// await setDoc(menRoomRef, {
75-
// name: "Men's Chat",
76-
// participants: [],
77-
// createdAt: serverTimestamp(),
78-
// createdBy: 'system',
79-
// type: 'men'
80-
// });
81-
// console.log("Men's chat room created");
82-
// }
83-
84-
// // Check if women's chat room exists
85-
// const womenRoomRef = doc(db, 'rooms', 'women');
86-
// const womenRoomDoc = await getDoc(womenRoomRef);
87-
88-
// if (!womenRoomDoc.exists()) {
89-
// // Create women's chat room
90-
// await setDoc(womenRoomRef, {
91-
// name: "Women's Chat",
92-
// participants: [],
93-
// createdAt: serverTimestamp(),
94-
// createdBy: 'system',
95-
// type: 'women'
96-
// });
97-
// console.log("Women's chat room created");
98-
// }
99-
100-
// return true;
101-
// } catch (error) {
102-
// console.error("Error initializing default chat rooms:", error);
103-
// return false;
104-
// }
105-
// };
106-
10749
// Get available chat rooms for a user based on their gender
10850
export const getAvailableRooms = (userId: string, gender?: string) => {
10951
return new Promise<ChatRoom[]>((resolve, reject) => {
@@ -156,39 +98,52 @@ export const getAvailableRooms = (userId: string, gender?: string) => {
15698

15799
// Get messages for a specific room
158100
export const getRoomMessages = (roomId: string) => {
159-
return new Promise<ChatMessage[]>((resolve, reject) => {
160-
try {
161-
const messagesQuery = query(
162-
collection(db, 'rooms', roomId, 'messages'),
163-
orderBy('timestamp', 'asc')
164-
);
165-
166-
const unsubscribe = onSnapshot(messagesQuery, (snapshot) => {
167-
const messages: ChatMessage[] = [];
168-
169-
snapshot.forEach((doc) => {
170-
const messageData = doc.data() as Omit<ChatMessage, 'id'>;
171-
messages.push({
172-
id: doc.id,
173-
...messageData,
174-
timestamp: messageData.timestamp as Timestamp
175-
});
176-
});
177-
178-
resolve(messages);
179-
}, (error) => {
180-
console.error(`Error getting messages for room ${roomId}:`, error);
181-
reject(error);
101+
console.log(`Starting real-time listener for messages in room ${roomId}`);
102+
103+
try {
104+
const messagesQuery = query(
105+
collection(db, 'rooms', roomId, 'messages'),
106+
orderBy('timestamp', 'asc')
107+
);
108+
109+
// Return the unsubscribe function directly so it can be used by the component
110+
return onSnapshot(messagesQuery, (snapshot) => {
111+
console.log(`Received snapshot update for room ${roomId} with ${snapshot.docs.length} messages`);
112+
}, (error) => {
113+
console.error(`Error in messages listener for room ${roomId}:`, error);
114+
});
115+
} catch (error) {
116+
console.error("Error setting up messages listener:", error);
117+
// Return a dummy unsubscribe function if setup fails
118+
return () => {};
119+
}
120+
};
121+
122+
// Separate function to get messages once without real-time updates
123+
export const fetchRoomMessages = async (roomId: string): Promise<ChatMessage[]> => {
124+
try {
125+
const messagesQuery = query(
126+
collection(db, 'rooms', roomId, 'messages'),
127+
orderBy('timestamp', 'asc')
128+
);
129+
130+
const snapshot = await getDocs(messagesQuery);
131+
const messages: ChatMessage[] = [];
132+
133+
snapshot.forEach((doc) => {
134+
const messageData = doc.data() as Omit<ChatMessage, 'id'>;
135+
messages.push({
136+
id: doc.id,
137+
...messageData,
138+
timestamp: messageData.timestamp as Timestamp
182139
});
183-
184-
// Return unsubscribe function so caller can stop listening when needed
185-
return unsubscribe;
186-
} catch (error) {
187-
console.error("Error in getRoomMessages:", error);
188-
reject(error);
189-
return () => {};
190-
}
191-
});
140+
});
141+
142+
return messages;
143+
} catch (error) {
144+
console.error(`Error fetching messages for room ${roomId}:`, error);
145+
return [];
146+
}
192147
};
193148

194149
// Send a message to a room

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