fix channel missing a name when re-joining

src/app_service/service/chat/service.nim

@@ -155,9 +155,10 @@ QtObject:
   proc getChatsOfChatTypes*(self: Service, types: seq[chat_dto.ChatType]): seq[ChatDto] =
     return self.getAllChats().filterIt(it.chatType in types)
 
-  proc getChatById*(self: Service, chatId: string): ChatDto =
+  proc getChatById*(self: Service, chatId: string, showWarning: bool = true): ChatDto =
     if(not self.chats.contains(chatId)):
-      error "trying to get chat data for an unexisting chat id", chatId
+      if (showWarning):
+        warn "trying to get chat data for an unexisting chat id", chatId
       return
 
     return self.chats[chatId]

src/app_service/service/community/service.nim

@@ -312,6 +312,18 @@ QtObject:
       var community = self.allCommunities[communityId]
       self.joinedCommunities[communityId] = community
 
+      for k, chat in community.chats:
+        let fullChatId = communityId & chat.id
+        let currentChat =  self.chatService.getChatById(fullChatId, showWarning = false)
+        echo currentChat
+        if (currentChat.id != ""):
+          # The chat service already knows that about that chat
+          continue
+        var chatDto = mapChatToChatDto(chat, communityId)
+        chatDto.id = fullChatId
+        # TODO find a way to populate missing infos like the color
+        self.chatService.updateOrAddChat(chatDto)
+
       self.events.emit(SIGNAL_COMMUNITY_JOINED, CommunityArgs(community: community))
     except Exception as e:
       error "Error joining the community", msg = e.msg