fix(Communities/ChatsList): chat model reordering refactored, updates fixed

fixes: #6597, #6722

src/app/modules/main/chat_section/model.nim

@@ -52,11 +52,6 @@ QtObject:
       [{i}]:({$self.items[i]})
       """
 
-  proc sortChats(x, y: Item): int =
-    if x.position < y.position: -1
-    elif x.position == y.position: 0
-    else: 1
-
   proc countChanged(self: Model) {.signal.}
 
   proc getCount*(self: Model): int {.slot.} =
@@ -183,16 +178,6 @@ QtObject:
 
     self.countChanged()
 
-  proc prependItem*(self: Model, item: Item) =
-    let parentModelIndex = newQModelIndex()
-    defer: parentModelIndex.delete
-
-    self.beginInsertRows(parentModelIndex, 0, 0)
-    self.items = item & self.items
-    self.endInsertRows()
-
-    self.countChanged()
-
   proc getItemAtIndex*(self: Model, index: int): Item =
     if(index < 0 or index >= self.items.len):
       return
@@ -334,11 +319,13 @@ QtObject:
     if(index == -1):
       return
 
+    if(self.items[index].BaseItem.position == position):
+      return
+
     self.items[index].BaseItem.position = position
 
-    self.beginResetModel()
-    self.items.sort(sortChats)
-    self.endResetModel()
+    let modelIndex = self.createIndex(index, 0, nil)
+    self.dataChanged(modelIndex, modelIndex, @[ModelRole.Position.int])
 
   proc clearItems*(self: Model) =
     self.beginResetModel()

src/app/modules/main/view.nim

@@ -163,7 +163,7 @@ QtObject:
 
   # Since we cannot return QVariant from the proc which has arguments, so cannot have proc like this:
   # prepareCommunitySectionModuleForCommunityId(self: View, communityId: string): QVariant {.slot.}
-  # we're using combinaiton of
+  # we're using combination of
   # prepareCommunitySectionModuleForCommunityId/getCommunitySectionModule procs
   proc prepareCommunitySectionModuleForCommunityId*(self: View, communityId: string) {.slot.} =
     self.tmpCommunityId = communityId

src/app_service/service/community/service.nim

@@ -295,14 +295,14 @@ QtObject:
     if(community.chats.len > prev_community.chats.len):
       for chat in community.chats:
         if findIndexById(chat.id, prev_community.chats) == -1:
-          let chatFullId = community.id & chat.id
-          var createdChat = findChatById(chatFullId, updatedChats)
-          createdChat.updateMissingFields(chat)
-          self.chatService.updateOrAddChat(createdChat) # we have to update chats stored in the chat service.
-
-          let data = CommunityChatArgs(chat: createdChat)
+          self.chatService.updateOrAddChat(chat) # we have to update chats stored in the chat service.
+          let data = CommunityChatArgs(chat: chat)
           self.events.emit(SIGNAL_COMMUNITY_CHANNEL_CREATED, data)
 
+          # if the chat was created by the current user then it's already in the model and should be reordered if necessary
+          self.events.emit(SIGNAL_COMMUNITY_CHANNEL_REORDERED, CommunityChatOrderArgs(communityId: community.id,
+            chatId: chat.id, categoryId: chat.categoryId, position: chat.position))
+
     # channel was removed
     elif(community.chats.len < prev_community.chats.len):
       for prv_chat in prev_community.chats:
@@ -798,20 +798,20 @@ QtObject:
 
       if response.result.isNil or response.result.kind == JNull:
         error "response is invalid", procName="reorderCommunityChat"
+        return
 
-      if response.result != nil and response.result.kind != JNull:
-        let updatedCommunity = response.result["communities"][0].toCommunityDto()
-        for chat in updatedCommunity.chats:
-          let prev_chat_idx = findIndexById(chat.id, self.joinedCommunities[communityId].chats)
-          if prev_chat_idx > -1:
-            let fullChatId = communityId & chat.id
-            let prev_chat = self.joinedCommunities[communityId].chats[prev_chat_idx]
-            if(chat.position != prev_chat.position and chat.categoryId == categoryId):
-              var chatDetails = self.chatService.getChatById(fullChatId) # we are free to do this cause channel must be created before we add it to a category
-              self.joinedCommunities[communityId].chats[prev_chat_idx].position = chat.position
-              chatDetails.updateMissingFields(self.joinedCommunities[communityId].chats[prev_chat_idx])
-              self.chatService.updateOrAddChat(chatDetails) # we have to update chats stored in the chat service.
-              self.events.emit(SIGNAL_COMMUNITY_CHANNEL_REORDERED, CommunityChatOrderArgs(communityId: updatedCommunity.id, chatId: fullChatId, categoryId: chat.categoryId, position: chat.position))
+      let updatedCommunity = response.result["communities"][0].toCommunityDto()
+
+      for chat in updatedCommunity.chats:
+        let prev_chat_idx = findIndexById(chat.id, self.joinedCommunities[communityId].chats)
+        if prev_chat_idx > -1:
+          let prev_chat = self.joinedCommunities[communityId].chats[prev_chat_idx]
+          if(chat.position != prev_chat.position and chat.categoryId == categoryId):
+            var chatDetails = self.chatService.getChatById(chat.id) # we are free to do this cause channel must be created before we add it to a category
+            self.joinedCommunities[communityId].chats[prev_chat_idx].position = chat.position
+            chatDetails.updateMissingFields(self.joinedCommunities[communityId].chats[prev_chat_idx])
+            self.chatService.updateOrAddChat(chatDetails) # we have to update chats stored in the chat service.
+            self.events.emit(SIGNAL_COMMUNITY_CHANNEL_REORDERED, CommunityChatOrderArgs(communityId: updatedCommunity.id, chatId: chat.id, categoryId: chat.categoryId, position: chat.position))
 
     except Exception as e:
       error "Error reordering community channel", msg = e.msg, communityId, chatId, position, procName="reorderCommunityChat"