fix rejected friends

backend/src/routes/friends.js

@@ -22,9 +22,9 @@ router.get('/search', authMiddleware, asyncHandler(async (req, res) => {
      WHERE (username LIKE ? OR email LIKE ?) 
      AND id != ?
      AND id NOT IN (
-       SELECT friend_id FROM friendships WHERE user_id = ?
+       SELECT friend_id FROM friendships WHERE user_id = ? AND status IN ('accepted', 'pending')
        UNION
-       SELECT user_id FROM friendships WHERE friend_id = ?
+       SELECT user_id FROM friendships WHERE friend_id = ? AND status IN ('accepted', 'pending')
      )
      LIMIT 20`,
     [searchTerm, searchTerm, req.user.userId, req.user.userId, req.user.userId]
@@ -101,10 +101,11 @@ router.post('/request', authMiddleware, asyncHandler(async (req, res) => {
     throw new AppError('Cannot add yourself as friend', 400);
   }
 
-  // Check if already friends or request exists
+  // Check if already friends or pending request exists
   const existing = await query(
     `SELECT * FROM friendships 
-     WHERE (user_id = ? AND friend_id = ?) OR (user_id = ? AND friend_id = ?)`,
+     WHERE (user_id = ? AND friend_id = ?) OR (user_id = ? AND friend_id = ?)
+     AND status IN ('accepted', 'pending')`,
     [req.user.userId, user_id, user_id, req.user.userId]
   );
 
@@ -112,6 +113,14 @@ router.post('/request', authMiddleware, asyncHandler(async (req, res) => {
     throw new AppError('Friend request already exists or you are already friends', 400);
   }
 
+  // Delete any old rejected requests before creating a new one
+  await query(
+    `DELETE FROM friendships 
+     WHERE ((user_id = ? AND friend_id = ?) OR (user_id = ? AND friend_id = ?))
+     AND status = 'rejected'`,
+    [req.user.userId, user_id, user_id, req.user.userId]
+  );
+
   await query(
     'INSERT INTO friendships (user_id, friend_id, status) VALUES (?, ?, "pending")',
     [req.user.userId, user_id]