fix(community): ensure chats are reordered when cateories have changed

We were not reordering chats when their category IDs have changed,
this resulted in missing updates in community member's UIs

Closes #9329

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

@@ -172,12 +172,12 @@ proc init*(self: Controller) =
     self.events.on(SIGNAL_COMMUNITY_CHANNEL_REORDERED) do(e:Args):
       let args = CommunityChatOrderArgs(e)
       if (args.communityId == self.sectionId):
-        self.delegate.onReorderChat(args.chatId, args.position, args.categoryId)
+        self.delegate.onReorderChat(args.chatId, args.position, args.categoryId, args.prevCategoryId, false)
     
     self.events.on(SIGNAL_COMMUNITY_CHANNEL_CATEGORY_CHANGED) do(e:Args):
       let args = CommunityChatOrderArgs(e)
       if (args.communityId == self.sectionId):
-        self.delegate.onCommunityCategoryChannelChanged(args.chatId, args.categoryId)
+        self.delegate.onReorderChat(args.chatId, args.position, args.categoryId, args.prevCategoryId, args.prevCategoryDeleted)
 
     self.events.on(SIGNAL_RELOAD_MESSAGES) do(e: Args):
       let args = ReloadMessagesArgs(e)

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

@@ -124,7 +124,7 @@ method onGroupChatDetailsUpdated*(self: AccessInterface, chatId: string, newName
 method onCommunityChannelEdited*(self: AccessInterface, chat: ChatDto) {.base.} =
   raise newException(ValueError, "No implementation available")
 
-method onReorderChat*(self: AccessInterface, chattId: string, position: int, newCategoryIdForChat: string) {.base.} =
+method onReorderChat*(self: AccessInterface, chattId: string, position: int, newCategoryIdForChat: string, prevCategoryId: string, prevCategoryDeleted: bool) {.base.} =
   raise newException(ValueError, "No implementation available")
 
 method onReorderCategory*(self: AccessInterface, catId: string, position: int) {.base.} =

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

@@ -185,6 +185,12 @@ QtObject:
       idx.inc
     return -1
 
+  proc hasEmptyChatItem*(self: Model, categoryId: string): bool =
+    for it in self.items:
+      if it.id == categoryId:
+        return true
+    return false
+
   proc getCategoryNameForCategoryId*(self: Model, categoryId: string): string {.slot.} =
     let index = self.getItemIdxByCategory(categoryId)
     if index == -1:
@@ -391,7 +397,7 @@ QtObject:
         continue
       item.categoryName = newName
       let modelIndex = self.createIndex(i, 0, nil)
-      self.dataChanged(modelIndex, modelIndex, @[ModelRole.CategoryName.int])
+      self.dataChanged(modelIndex, modelIndex, @[ModelRole.CategoryId.int, ModelRole.CategoryName.int])
 
   proc renameItemById*(self: Model, id, name: string) =
     let index = self.getItemIdxById(id)

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

@@ -29,6 +29,8 @@ import ../../../../app_service/service/contacts/dto/contacts as contacts_dto
 
 export io_interface
 
+const CATEGORY_ID_PREFIX = "cat-"
+
 logScope:
   topics = "chat-section-module"
 
@@ -130,7 +132,7 @@ proc removeSubmodule(self: Module, chatId: string) =
 proc addEmptyChatItemForCategory(self: Module, category: Category) =
   # Add an empty chat item that has the category info
   let emptyChatItem = chat_item.initItem(
-        id = "cat-" & category.id,
+        id = CATEGORY_ID_PREFIX & category.id,
         name = "",
         icon = "",
         color = "",
@@ -599,6 +601,8 @@ method onCommunityCategoryDeleted*(self: Module, cat: Category, chats: seq[ChatD
       newCategoryName = "",
       newCategoryPosition = -1,
     )
+  self.view.chatsModel().removeItemById(CATEGORY_ID_PREFIX & cat.id)
+
 
 method setFirstChannelAsActive*(self: Module) =
   if(self.view.chatsModel().getCount() == 0):
@@ -614,7 +618,7 @@ method onCommunityCategoryChannelChanged*(self: Module, channelId: string, newCa
     else:
       self.setActiveItem(channelId)
 
-method onReorderChat*(self: Module, chatId: string, position: int, newCategoryIdForChat: string) =
+method onReorderChat*(self: Module, chatId: string, position: int, newCategoryIdForChat: string, prevCategoryId: string, prevCategoryDeleted: bool) =
   var newCategoryName = ""
   var newCategoryPos = -1
   if newCategoryIdForChat != "":
@@ -622,6 +626,10 @@ method onReorderChat*(self: Module, chatId: string, position: int, newCategoryId
     newCategoryName = newCategory.name
     newCategoryPos = newCategory.position
   self.view.chatsModel().reorderChatById(chatId, position, newCategoryIdForChat, newCategoryName, newCategoryPos)
+  if prevCategoryId != "" and not prevCategoryDeleted:
+    if not self.view.chatsModel().hasEmptyChatItem(CATEGORY_ID_PREFIX & prevCategoryId):
+      let category = self.controller.getCommunityCategoryDetails(self.controller.getMySectionId(), prevCategoryId)
+      self.addEmptyChatItemForCategory(category)
 
 method onReorderCategory*(self: Module, catId: string, position: int) =
   self.view.chatsModel().reorderCategoryById(catId, position)

src/app_service/service/community/service.nim

@@ -52,6 +52,8 @@ type
     chatId*: string
     categoryId*: string
     position*: int
+    prevCategoryId*: string
+    prevCategoryDeleted*: bool
 
   CommunityCategoryOrderArgs* = ref object of Args
     communityId*: string
@@ -371,10 +373,14 @@ QtObject:
       if community.settings.id == "":
         community.settings = prev_community.settings
 
+      var deletedCategories: seq[string] = @[]
+
       # category was added
       if(community.categories.len > prev_community.categories.len):
         for category in community.categories:
           if findIndexById(category.id, prev_community.categories) == -1:
+            self.allCommunities[community.id].categories.add(category)
+            self.joinedCommunities[community.id].categories.add(category)
             let chats = self.getChatsInCategory(community, category.id)
 
             self.events.emit(SIGNAL_COMMUNITY_CATEGORY_CREATED,
@@ -384,6 +390,7 @@ QtObject:
       elif(community.categories.len < prev_community.categories.len):
         for prv_category in prev_community.categories:
           if findIndexById(prv_category.id, community.categories) == -1:
+            deletedCategories.add(prv_category.id)
             self.events.emit(SIGNAL_COMMUNITY_CATEGORY_DELETED,
               CommunityCategoryArgs(communityId: community.id, category: Category(id: prv_category.id)))
 
@@ -440,8 +447,16 @@ QtObject:
 
           # Handle channel was added/removed to/from category
           if chat.categoryId != prev_chat.categoryId:
+
+            var prevCategoryDeleted = false
+            if chat.categoryId == "":
+              for catId in deletedCategories:
+                if prev_chat.categoryId == catId:
+                  prevCategoryDeleted = true
+                  break
+
             self.events.emit(SIGNAL_COMMUNITY_CHANNEL_CATEGORY_CHANGED, CommunityChatOrderArgs(communityId: community.id,
-            chatId: chat.id, categoryId: chat.categoryId, position: chat.position))
+                                                                                               chatId: chat.id, categoryId: chat.categoryId, position: chat.position, prevCategoryId: prev_chat.categoryId, prevCategoryDeleted: prevCategoryDeleted))
 
           # Handle name/description changes
           if chat.name != prev_chat.name or chat.description != prev_chat.description or chat.color != prev_chat.color: