fix: sửa lỗi iphone ko thể upload

frontend/src/components/PublicPhotoModal.tsx

@@ -130,7 +130,7 @@ export const PublicPhotoModal: React.FC<PublicPhotoModalProps> = ({
         }
       }
 
-      const res = await fetch(`/api/v1/public-photos/${photo.id}/comments`, {
+      let res = await fetch(`/api/v1/public-photos/${photo.id}/comments`, {
         method: 'POST',
         headers: {
           'Content-Type': 'application/json',
@@ -138,6 +138,37 @@ export const PublicPhotoModal: React.FC<PublicPhotoModalProps> = ({
         },
         body: JSON.stringify({ content: newComment })
       });
+ 
+      if (res.status === 401) {
+        console.warn('Token invalid or expired. Creating a new guest user and retrying comment...');
+        localStorage.removeItem('guest_token');
+        localStorage.removeItem('guest_user');
+        localStorage.removeItem('token');
+        localStorage.removeItem('user');
+
+        const guestRes = await fetch('/api/v1/auth/create-guest', { method: 'POST' });
+        if (!guestRes.ok) throw new Error('Không thể tạo lại phiên khách.');
+        const guestData = await guestRes.json();
+        token = guestData.access_token;
+        currentUser = guestData.user;
+        localStorage.setItem('guest_token', token!);
+        localStorage.setItem('guest_user', JSON.stringify(currentUser));
+        localStorage.setItem('token', token!);
+        localStorage.setItem('user', JSON.stringify(currentUser));
+
+        if (onLoginSuccess) {
+          onLoginSuccess(currentUser);
+        }
+
+        res = await fetch(`/api/v1/public-photos/${photo.id}/comments`, {
+          method: 'POST',
+          headers: {
+            'Content-Type': 'application/json',
+            'Authorization': `Bearer ${token}`
+          },
+          body: JSON.stringify({ content: newComment })
+        });
+      }
 
       if (res.ok) {
         setNewComment('');