feat(chat): clear unread messages count when changing channels

Closes #138

src/app/chat/view.nim

@@ -1,5 +1,6 @@
 import NimQml
 import Tables
+import json
 
 import ../../signals/types
 import ../../status/chat
@@ -43,7 +44,9 @@ QtObject:
 
   proc setActiveChannelByIndex*(self: ChatsView, index: int) {.slot.} =
     if(self.chats.chats.len == 0): return
-
+    var response = self.status.chat.markAllChannelMessagesRead(self.activeChannel.id)
+    if not response.hasKey("error"):
+      self.chats.clearUnreadMessagesCount(self.activeChannel.chatItem)
     let selectedChannel = self.chats.getChannel(index)
     if self.activeChannel.id == selectedChannel.id: return
     self.activeChannel.setChatItem(selectedChannel)

src/app/chat/views/channels_list.nim

@@ -98,3 +98,12 @@ QtObject:
       self.chats[0] = channel
 
     self.dataChanged(topLeft, bottomRight, @[ChannelsRoles.Name.int, ChannelsRoles.LastMessage.int, ChannelsRoles.Timestamp.int, ChannelsRoles.LastMessage.int, ChannelsRoles.UnreadMessages.int, ChannelsRoles.Identicon.int, ChannelsRoles.LastMessage.int])
+
+  proc clearUnreadMessagesCount*(self: ChannelsList, channel: ChatItem) =
+    let idx = self.chats.findById(channel.id)
+    let topLeft = self.createIndex(0, 0, nil)
+    let bottomRight = self.createIndex(self.chats.len - 1, 0, nil)
+    channel.unviewedMessagesCount = 0
+    self.chats[idx] = channel
+
+    self.dataChanged(topLeft, bottomRight, @[ChannelsRoles.Name.int, ChannelsRoles.LastMessage.int, ChannelsRoles.Timestamp.int, ChannelsRoles.LastMessage.int, ChannelsRoles.UnreadMessages.int, ChannelsRoles.Identicon.int, ChannelsRoles.LastMessage.int])

src/status/chat.nim

@@ -124,3 +124,7 @@ proc sendMessage*(self: ChatModel, chatId: string, msg: string): string =
 proc chatMessages*(self: ChatModel, chatId: string) =
   let msgs = status_chat.chatMessages(chatId)
   self.events.emit("messagesLoaded", MsgsLoadedArgs(messages: msgs))
+
+proc markAllChannelMessagesRead*(self: ChatModel, chatId: string): JsonNode =
+  var response = status_chat.markAllRead(chatId)
+  result = parseJson(response)

src/status/libstatus/chat.nim

@@ -110,3 +110,6 @@ proc sendChatMessage*(chatId: string, msg: string): string =
       "contentType": 1
     }
   ])
+
+proc markAllRead*(chatId: string): string =
+  callPrivateRPC("markAllRead".prefix, %* [chatId])