feat: show last message and unread message count

src/app/chat/chatItem.nim

@@ -0,0 +1,18 @@
+type ChatItem* = ref object
+  name*: string
+  lastMessage*: string
+  timestamp*: int64
+  unviewedMessagesCount*: int
+
+proc newChatItem*(): ChatItem =
+  new(result)
+  result.name = ""
+  result.lastMessage = ""
+  result.timestamp = 0
+  result.unviewedMessagesCount = 0
+
+proc findByName*(self: seq[ChatItem], name: string): int =
+  result = -1
+  for item in self:
+    inc result
+    if(item.name == name): break

src/app/chat/core.nim

@@ -2,9 +2,10 @@ import NimQml
 import json, eventemitter
 import ../../status/chat as status_chat
 import view
+import chatItem
 import messages
 import ../signals/types
-import ../../models/chat
+import ../../models/chat as chat_model
 
 type ChatController* = ref object of SignalSubscriber
   view*: ChatsView
@@ -40,9 +41,18 @@ proc load*(self: ChatController, chatId: string) =
   discard self.view.joinChat(chatId)
   self.view.setActiveChannelByIndex(0)
 
-proc onSignal(self: ChatController, data: Signal) =
-  var chatSignal = cast[ChatSignal](data)
-  for message in chatSignal.messages:
+method onSignal(self: ChatController, data: Signal) =
+  var messageSignal = cast[MessageSignal](data)
+
+  for c in messageSignal.chats:
+    let channel = newChatitem()
+    channel.name = c.name
+    channel.lastMessage = c.lastMessage.text
+    channel.timestamp = c.timestamp
+    channel.unviewedMessagesCount = c.unviewedMessagesCount
+    self.view.updateChat(channel)
+
+  for message in messageSignal.messages:
     let chatMessage = newChatMessage()
     chatMessage.userName = message.alias
     chatMessage.message = message.text

src/app/chat/view.nim

@@ -2,17 +2,21 @@ import NimQml
 import Tables
 import messages
 import messageList
+import chatItem
 import ../../models/chat
 
 type
   RoleNames {.pure.} = enum
     Name = UserRole + 1,
+    LastMessage = UserRole + 2
+    Timestamp = UserRole + 3
+    UnreadMessages = UserRole + 4
 
 QtObject:
   type
     ChatsView* = ref object of QAbstractListModel
       model: ChatModel
-      names*: seq[string]
+      chats: seq[ChatItem]
       callResult: string
       messageList: Table[string, ChatMessageList]
       activeChannel: string
@@ -24,7 +28,7 @@ QtObject:
   proc newChatsView*(model: ChatModel): ChatsView =
     new(result, delete)
     result.model = model
-    result.names = @[]
+    result.chats = @[]
     result.activeChannel = ""
     result.messageList = initTable[string, ChatMessageList]()
     result.setup()
@@ -33,17 +37,29 @@ QtObject:
     if not self.messageList.hasKey(channel):
       self.messageList[channel] = newChatMessageList()
 
-  method rowCount(self: ChatsView, index: QModelIndex = nil): int = self.names.len
+  method rowCount(self: ChatsView, index: QModelIndex = nil): int = self.chats.len
 
   method data(self: ChatsView, index: QModelIndex, role: int): QVariant =
     if not index.isValid:
       return
-    if index.row < 0 or index.row >= self.names.len:
+    if index.row < 0 or index.row >= self.chats.len:
       return
-    return newQVariant(self.names[index.row])
+
+    let chatItem = self.chats[index.row]
+    let chatItemRole = role.RoleNames
+    case chatItemRole:
+      of RoleNames.Name: result = newQVariant(chatItem.name)
+      of RoleNames.Timestamp: result = newQVariant($chatItem.timestamp)
+      of RoleNames.LastMessage: result = newQVariant(chatItem.lastMessage)
+      of RoleNames.UnreadMessages: result = newQVariant(chatItem.unviewedMessagesCount)
 
   method roleNames(self: ChatsView): Table[int, string] =
-    { RoleNames.Name.int:"name"}.toTable
+    { 
+      RoleNames.Name.int:"name",
+      RoleNames.Timestamp.int:"timestamp",
+      RoleNames.LastMessage.int: "lastMessage",
+      RoleNames.UnreadMessages.int: "unviewedMessagesCount"
+    }.toTable
 
   proc onSend*(self: ChatsView, inputJSON: string) {.slot.} =
     discard self.model.sendMessage(self.activeChannel, inputJSON)
@@ -57,8 +73,8 @@ QtObject:
   proc activeChannelChanged*(self: ChatsView) {.signal.}
 
   proc setActiveChannelByIndex*(self: ChatsView, index: int) {.slot.} =
-    if self.activeChannel == self.names[index]: return
-    self.activeChannel = self.names[index]
+    if self.activeChannel == self.chats[index].name: return
+    self.activeChannel = self.chats[index].name
     self.activeChannelChanged()
 
   QtProperty[string] activeChannel:
@@ -80,18 +96,27 @@ QtObject:
 
   proc addToList(self: ChatsView, channel: string): int =
     if(self.activeChannel == ""): self.setActiveChannel(channel)
-
-    self.beginInsertRows(newQModelIndex(), self.names.len, self.names.len)
-    self.names.add(channel)
+    var chatItem = newChatItem()
+    chatItem.name = channel
     self.upsertChannel(channel)
+    self.beginInsertRows(newQModelIndex(), self.chats.len, self.chats.len)
+    self.chats.add(chatItem)
     self.endInsertRows()
     
-    result = self.names.len - 1
+    result = self.chats.len - 1
 
   proc joinChat*(self: ChatsView, channel: string): int {.slot.} =
     self.setActiveChannel(channel)
     if self.model.hasChannel(channel):
-      result = self.names.find(channel)
+      result = self.chats.findByName(channel)
     else:
       self.model.join(channel)
       result = self.addToList(channel)
+
+  proc updateChat*(self: ChatsView, chat: ChatItem) =
+    var idx = self.chats.findByName(chat.name)
+    if idx > -1:
+      self.chats[idx] = chat
+      var x = self.createIndex(idx,0,nil)
+      var y = self.createIndex(idx,0,nil)
+      self.dataChanged(x, y, @[RoleNames.Timestamp.int, RoleNames.LastMessage.int, RoleNames.UnreadMessages.int])

src/app/signals/messages.nim

@@ -1,13 +1,40 @@
 import json
 import types
 
+proc toMessage(jsonMsg: JsonNode): Message
+proc toChat(jsonChat: JsonNode): Chat
+
 proc fromEvent*(event: JsonNode): Signal = 
-  var signal:ChatSignal = ChatSignal()
+  var signal:MessageSignal = MessageSignal()
   signal.messages = @[]
 
   if event["event"]{"messages"} != nil:
     for jsonMsg in event["event"]["messages"]:
-      let msg = Message(
+      signal.messages.add(jsonMsg.toMessage)
+
+  if event["event"]{"chats"} != nil:
+    for jsonChat in event["event"]["chats"]:
+      signal.chats.add(jsonChat.toChat)
+
+  result = signal
+
+proc toChat(jsonChat: JsonNode): Chat =
+  result = Chat(
+    id: jsonChat{"id"}.getStr,
+    name: jsonChat{"name"}.getStr,
+    color: jsonChat{"color"}.getStr,
+    active: jsonChat{"active"}.getBool,
+    chatType: ChatType(jsonChat{"chatType"}.getInt),
+    timestamp: jsonChat{"timestamp"}.getBiggestInt,
+    lastClockValue: jsonChat{"lastClockValue"}.getBiggestInt,
+    deletedAtClockValue: jsonChat{"deletedAtClockValue"}.getBiggestInt, 
+    unviewedMessagesCount: jsonChat{"unviewedMessagesCount"}.getInt,
+    lastMessage: jsonChat{"lastMessage"}.toMessage
+  )
+
+
+proc toMessage(jsonMsg: JsonNode): Message =
+  result = Message(
       alias: jsonMsg{"alias"}.getStr,
       chatId: jsonMsg{"chatId"}.getStr,
       clock: $jsonMsg{"clock"}.getInt,
@@ -28,6 +55,3 @@ proc fromEvent*(event: JsonNode): Signal =
       whisperTimestamp: $jsonMsg{"whisperTimestamp"}.getInt,
       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)
-
-  result = signal

src/app/signals/types.nim

@@ -1,3 +1,5 @@
+import chronicles
+
 type SignalSubscriber* = ref object of RootObj
 
 type Signal* = ref object of RootObj
@@ -30,10 +32,32 @@ type Message* = object
   whisperTimestamp*: string
   isCurrentUser*: bool
 
-
-type ChatSignal* = ref object of Signal
-  messages*: seq[Message]
-
 # Override this method
 method onSignal*(self: SignalSubscriber, data: Signal) {.base.} =
-  echo "Received a signal"  # TODO: log signal received
+  discard
+  # TODO: log signal received
+
+type ChatType* = enum
+  ChatTypeOneToOne = 1, 
+  ChatTypePublic = 2,
+  ChatTypePrivateGroupChat = 3
+
+type Chat* = object
+  id*: string # ID is the id of the chat, for public chats it is the name e.g. status, for one-to-one is the hex encoded public key and for group chats is a random uuid appended with the hex encoded pk of the creator of the chat
+  name*: string
+  color*: string
+  active*: bool # indicates whether the chat has been soft deleted
+  chatType*: ChatType
+  timestamp*: int64 # indicates the last time this chat has received/sent a message
+  lastClockValue*: int64 # indicates the last clock value to be used when sending messages
+  deletedAtClockValue*: int64 # indicates the clock value at time of deletion, messages with lower clock value of this should be discarded
+  unviewedMessagesCount*: int
+  lastMessage*: Message
+  # Group chat fields
+  # members ?
+  # membershipUpdateEvents # ?
+
+
+type MessageSignal* = ref object of Signal
+  messages*: seq[Message]
+  chats*: seq[Chat]

src/nim_status_client.nim

@@ -75,7 +75,6 @@ proc mainProc() =
 
   appState.subscribe(proc () =
     for channel in appState.channels:
-      echo channel.name
       chat.load(channel.name)
   )
 

ui/app/AppLayouts/Chat/ChatLayout.qml

@@ -181,7 +181,7 @@ SplitView {
                         }
                         Text {
                             id: lastChatMessage
-                            text: "Chatting blah blah..."
+                            text: lastMessage || qsTr("No messages")
                             anchors.right: contactNumberChatsCircle.left
                             anchors.rightMargin: Theme.smallPadding
                             elide: Text.ElideRight
@@ -194,7 +194,7 @@ SplitView {
                         }
                         Text {
                             id: contactTime
-                            text: "12:22 AM"
+                            text: timestamp
                             anchors.right: parent.right
                             anchors.rightMargin: Theme.padding
                             anchors.top: parent.top
@@ -212,9 +212,10 @@ SplitView {
                             anchors.right: parent.right
                             anchors.rightMargin: Theme.padding
                             color: Theme.blue
+                            visible: unviewedMessagesCount > 0
                             Text {
                                 id: contactNumberChats
-                                text: qsTr("1")
+                                text: unviewedMessagesCount
                                 anchors.horizontalCenter: parent.horizontalCenter
                                 anchors.verticalCenter: parent.verticalCenter
                                 color: "white"