feat: support multiple channels on the UI

src/app/chat/core.nim

@@ -1,5 +1,5 @@
 import NimQml
-import json
+import json, sets
 import ../../status/chat as status_chat
 import view
 import messages
@@ -17,17 +17,19 @@ var sendMessage = proc (view: ChatsView, chatId: string, msg: string): string =
   chatMessage.timestamp = $parsedMessage["timestamp"]
   chatMessage.identicon = parsedMessage["identicon"].str
   chatMessage.isCurrentUser = true
-  view.pushMessage(chatMessage)
+
+  view.pushMessage(chatId, chatMessage)
   sentMessage
 
 type ChatController* = ref object of SignalSubscriber
   view*: ChatsView
   variant*: QVariant
+  channels: HashSet[string]
 
 proc newController*(): ChatController =
   result = ChatController()
+  result.channels = initHashSet[string]()
   result.view = newChatsView(sendMessage)
-  result.view.names = @[]
   result.variant = newQVariant(result.view)
 
 proc delete*(self: ChatController) =
@@ -38,7 +40,13 @@ proc init*(self: ChatController) =
   discard
 
 proc join*(self: ChatController, chatId: string) =
-  # TODO: check whether we have joined a chat already or not
+  if self.channels.contains(chatId):
+    # TODO: 
+    return
+
+  self.channels.incl chatId
+
+
   # TODO: save chat list in the db
   echo "Joining chat: ", chatId
   let oneToOne = isOneToOneChat(chatId)
@@ -62,5 +70,5 @@ method onSignal(self: ChatController, data: Signal) =
     chatMessage.message = message.text
     chatMessage.timestamp = message.timestamp #TODO convert to date/time?
     chatMessage.identicon = message.identicon
-    chatMessage.isCurrentUser = message.isCurrentUser #TODO: Determine who originated the message
-    self.view.pushMessage(chatMessage)
+    chatMessage.isCurrentUser = message.isCurrentUser
+    self.view.pushMessage(message.chatId, chatMessage)

src/app/chat/view.nim

@@ -14,31 +14,34 @@ QtObject:
     ChatsView* = ref object of QAbstractListModel
       names*: seq[string]
       callResult: string
-      messageList: ChatMessageList
-      sendMessage: proc (view: ChatsView, chatId: string, msg: string):  string
+      messageList: Table[string, ChatMessageList]
+      activeChannel: string
+      sendMessage: proc (view: ChatsView, channel: string, msg: string):  string
 
-  proc delete(self: ChatsView) =
-    self.QAbstractListModel.delete
+  proc delete(self: ChatsView) = self.QAbstractListModel.delete
 
-  proc setup(self: ChatsView) =
-    self.QAbstractListModel.setup
+  proc setup(self: ChatsView) = self.QAbstractListModel.setup
 
   proc newChatsView*(sendMessage: proc): ChatsView =
     new(result, delete)
     result.sendMessage = sendMessage
     result.names = @[]
-    result.messageList = newChatMessageList()
+    result.activeChannel = ""
+    result.messageList = initTable[string, ChatMessageList]() # newChatMessageList()
     result.setup
 
-  proc addNameTolist*(self: ChatsView, chatId: string) {.slot.} =
-    self.beginInsertRows(newQModelIndex(), self.names.len, self.names.len)
-    self.names.add(chatId)
-    self.endInsertRows()
+  proc upsertChannel(self: ChatsView, channel: string) =
+    if not self.messageList.hasKey(channel):
+      self.messageList[channel] = newChatMessageList()
 
-  proc get*(self: ChatsView, index: int): string {.slot.} =
-    if index < 0 or index >= self.names.len:
-      return
-    return self.names[index]
+  proc addNameTolist*(self: ChatsView, channel: string) {.slot.} =
+    if(self.activeChannel == ""):
+      self.activeChannel = channel
+
+    self.beginInsertRows(newQModelIndex(), self.names.len, self.names.len)
+    self.names.add(channel)
+    self.upsertChannel(channel)
+    self.endInsertRows()
 
   method rowCount(self: ChatsView, index: QModelIndex = nil): int =
     return self.names.len
@@ -66,26 +69,32 @@ QtObject:
 
   proc `callResult=`*(self: ChatsView, callResult: string) = self.setCallResult(callResult)
 
-  # Binding between a QML variable and accesors is done here
   QtProperty[string] callResult:
     read = callResult
     write = setCallResult
     notify = callResultChanged
 
   proc onSend*(self: ChatsView, inputJSON: string) {.slot.} =
-    # TODO unhardcode chatId
-    self.setCallResult(self.sendMessage(self, "test", inputJSON))
-    echo "Done!: ", self.callResult
+    self.setCallResult(self.sendMessage(self, self.activeChannel, inputJSON))
 
-  proc onMessage*(self: ChatsView, message: string) {.slot.} =
-    self.setCallResult(message)
-    echo "Received message: ", message
+  proc pushMessage*(self:ChatsView, channel: string, message: ChatMessage) =
+    self.upsertChannel(channel)
+    self.messageList[channel].add(message)
 
-  proc pushMessage*(self:ChatsView, message: ChatMessage) =
-    self.messageList.add(message)
+  proc activeChannelChanged*(self: ChatsView) {.signal.}
+
+  proc setActiveChannelByIndex(self: ChatsView, index: int) {.slot.} =
+    if self.activeChannel == self.names[index]: return
+    self.activeChannel = self.names[index]
+    self.activeChannelChanged()
+
+  QtProperty[string] activeChannel:
+    write = setActiveChannel
+    notify = activeChannelChanged
 
   proc getMessageList(self: ChatsView): QVariant {.slot.} =
-    return newQVariant(self.messageList)
+    return newQVariant(self.messageList[self.activeChannel])
 
   QtProperty[QVariant] messageList:
     read = getMessageList
+    notify = activeChannelChanged

src/app/signals/messages.nim

@@ -24,7 +24,7 @@ proc fromEvent*(event: JsonNode): Signal =
       text: jsonMsg["text"].getStr,
       timestamp: $jsonMsg["timestamp"].getInt,
       whisperTimestamp: $jsonMsg["whisperTimestamp"].getInt,
-      isCurrentUser: false
+      isCurrentUser: false # TODO: this must compare the fromAuthor against current user because the messages received from the mailserver will arrive as signals too, and those include the current user messages
     )
 
     signal.messages.add(msg)

ui/app/AppLayouts/Chat/ChatLayout.qml

@@ -145,7 +145,10 @@ SplitView {
 
                         MouseArea {
                             anchors.fill: parent
-                            onClicked: chatGroupsListView.currentIndex = index
+                            onClicked: {
+                                chatsModel.setActiveChannelByIndex(index)
+                                chatGroupsListView.currentIndex = index
+                            }
                         }
 
                         Rectangle {