ajout de pastille pour les amis dans global chat et recuperation des messages recents

srcs/backend/services/friends.js

@@ -178,6 +178,29 @@ async function declineFriendRequest(userId, fromUserId) {
     }
 }
 
+/**
+ * Get list of friend IDs for a user (for quick lookup)
+ */
+async function getFriendIds(userId) {
+    try {
+        const result = await query(
+            `SELECT
+                CASE
+                    WHEN f.id_user1 = $1 THEN f.id_user2
+                    ELSE f.id_user1
+                END as friend_id
+             FROM friendship f
+             WHERE (f.id_user1 = $1 OR f.id_user2 = $1)
+             AND f.status = 'accepted'`,
+            [userId]
+        );
+        return result.rows.map(row => row.friend_id);
+    } catch (err) {
+        console.error('Get friend IDs error:', err);
+        return [];
+    }
+}
+
 /**
  * Remove a friend
  */
@@ -207,6 +230,7 @@ async function removeFriend(userId, friendId) {
 
 export default {
     getFriends,
+    getFriendIds,
     getPendingRequests,
     searchUsers,
     sendFriendRequest,

srcs/backend/services/socket.js

@@ -1,5 +1,6 @@
 import jwt from 'jsonwebtoken';
 import chatService from './global_chat.js';
+import friendsService from './friends.js';
 
 function setupSocketIO(io)
 {
@@ -21,11 +22,27 @@ function setupSocketIO(io)
 		}
 	});
 
-	io.on('connection', (socket) =>
+	io.on('connection', async (socket) =>
 	{
 		console.log(`User connected: ${socket.user.username}`);
 
 		socket.join('general-chat');
+
+		// Send recent messages and friend IDs on connection
+		try {
+			const [recentMessages, friendIds] = await Promise.all([
+				chatService.getRecentMessages(50),
+				friendsService.getFriendIds(socket.user.userId)
+			]);
+
+			socket.emit('chat-init', {
+				messages: recentMessages,
+				friendIds: friendIds
+			});
+		} catch (err) {
+			console.error('Error fetching initial data:', err);
+		}
+
 		socket.on('chat-message', async(data) =>
 		{
 			try
@@ -33,7 +50,8 @@ function setupSocketIO(io)
 				const message = await chatService.saveMessage(socket.user.userId, data.content);
 				socket.broadcast.to('general-chat').emit('chat-message',
 				{
-					id:message.id,
+					id: message.id,
+					sender_id: socket.user.userId,
 					username: socket.user.username,
 					content: message.content,
 					created_at: message.created_at