Manage private chats

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

chat/models.py

@@ -91,6 +91,13 @@ class Channel(models.Model):
                     "in addition to the permitted group of the channel."),
     )
 
+    def get_visible_name(self, user: User) -> str:
+        if self.private:
+            users = [f"{u.first_name} {u.last_name}" for u in self.invited.all() if u != user] \
+                    or [f"{user.first_name} {user.last_name}"]
+            return ", ".join(users)
+        return self.name
+
     def __str__(self):
         return str(format_lazy(_("Channel {name}"), name=self.name))
 
@@ -106,7 +113,7 @@ class Channel(models.Model):
         registration = await Registration.objects.prefetch_related('user').aget(user_id=user.id)
 
         if registration.is_admin:
-            return Channel.objects.all()
+            return Channel.objects.prefetch_related('invited').exclude(~Q(invited=user) & Q(private=True)).all()
 
         if registration.is_volunteer:
             registration = await VolunteerRegistration.objects \
@@ -153,7 +160,7 @@ class Channel(models.Model):
             qs |= Channel.objects.filter(Q(team=team),
                                          **{permission_type: PermissionType.TEAM_MEMBER})
 
-        qs |= Channel.objects.filter(invited=user)
+        qs |= Channel.objects.filter(invited=user).prefetch_related('invited')
 
         return qs