sort and update contact list

lib/cwtch/cwtchNotifier.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'dart:developer';
 
 import '../errorHandler.dart';
 import '../model.dart';
@@ -34,6 +35,7 @@ class CwtchNotifier {
               savePeerHistory: data["saveConversationHistory"],
               numMessages: int.parse(data["numMessages"]),
               numUnread: int.parse(data["unread"]),
+              lastMessageTime: DateTime.now(),//show at the top of the contact list even if no messages yet
             ));
         break;
       case "PeerStateChange":
@@ -51,6 +53,7 @@ class CwtchNotifier {
       case "NewMessageFromPeer":
         profileCN.getProfile(data["ProfileOnion"]).contactList.getContact(data["RemotePeer"]).unreadMessages++;
         profileCN.getProfile(data["ProfileOnion"]).contactList.getContact(data["RemotePeer"]).totalMessages++;
+        profileCN.getProfile(data["ProfileOnion"]).contactList.updateLastMessageTime(data["RemotePeer"], DateTime.now());
         break;
       case "AppError":
         print("New App Error: $data");
@@ -70,6 +73,9 @@ class CwtchNotifier {
         var isOnline = data["Status"] == "Success";
         profileCN.getProfile(data["ProfileOnion"]).isOnline = isOnline;
         break;
+      case "ACNStatus":
+        print("acn status: $data");
+        break;
       default:
         print("unhandled event: $type");
     }

lib/model.dart

@@ -74,7 +74,6 @@ class ProfileListState extends ChangeNotifier {
   }
 
   void add(ProfileInfoState newProfile) {
-    print("ProfileListState: adding " + newProfile.onion + " and notifying");
     _profiles.add(newProfile);
     notifyListeners();
   }
@@ -101,9 +100,13 @@ class ContactListState extends ChangeNotifier {
     notifyListeners();
   }
 
-  void updateUnreadMessages(String forOnion, int newVal) {
+  void updateLastMessageTime(String forOnion, DateTime newVal) {
+    getContact(forOnion).lastMessageTime = newVal;
     _contacts.sort((ContactInfoState a, ContactInfoState b) {
-      return b.unreadMessages - a.unreadMessages;
+      if (a.lastMessageTime == null && b.lastMessageTime == null) return 0;
+      if (a.lastMessageTime == null) return 1;
+      if (b.lastMessageTime == null) return -1;
+      return a.lastMessageTime.compareTo(b.lastMessageTime);
     });
     //<todo> if(changed) {
     notifyListeners();
@@ -140,9 +143,9 @@ class ProfileInfoState extends ChangeNotifier {
     this._online = online;
 
     if (contactsJson != null && contactsJson != "" && contactsJson != "null") {
-      print("decoding " + contactsJson);
       List<dynamic> contacts = jsonDecode(contactsJson);
       this._contacts.addAll(contacts.map((contact) {
+        print(contact["lastMsgTime"]);
         return ContactInfoState(
             profileOnion: this.onion,
             onion: contact["onion"],
@@ -153,8 +156,14 @@ class ProfileInfoState extends ChangeNotifier {
             isInvitation: contact["authorization"] == "unknown",
             savePeerHistory: contact["saveConversationHistory"],
             numMessages: contact["numMessages"],
-            numUnread: contact["numUnread"]);
+            numUnread: contact["numUnread"],
+            lastMessageTime: DateTime.tryParse(contact["lastMsgTime"]));
       }));
+
+      // dummy set to invoke sort-on-load
+      if (this._contacts.num > 0) {
+        this._contacts.updateLastMessageTime(this._contacts._contacts.first.onion, this._contacts._contacts.first.lastMessageTime);
+      }
     }
   }
 
@@ -204,6 +213,7 @@ class ContactInfoState extends ChangeNotifier {
   String _savePeerHistory;
   int _unreadMessages = 0;
   int _totalMessages = 0;
+  DateTime _lastMessageTime;
 
   ContactInfoState({
     this.profileOnion,
@@ -217,6 +227,7 @@ class ContactInfoState extends ChangeNotifier {
     savePeerHistory = "DeleteHistoryConfirmed",
     numMessages = 0,
     numUnread = 0,
+    lastMessageTime = null,
   }) {
     this._nickname = nickname;
     this._isGroup = isGroup;
@@ -227,6 +238,7 @@ class ContactInfoState extends ChangeNotifier {
     this._totalMessages = numMessages;
     this._unreadMessages = numUnread;
     this._savePeerHistory = savePeerHistory;
+    this._lastMessageTime = lastMessageTime;
   }
 
   get nickname => this._nickname;
@@ -283,6 +295,12 @@ class ContactInfoState extends ChangeNotifier {
     this._imagePath = newVal;
     notifyListeners();
   }
+
+  get lastMessageTime => this._lastMessageTime;
+  set lastMessageTime(DateTime newVal) {
+    this._lastMessageTime = newVal;
+    notifyListeners();
+  }
 }
 
 class MessageState extends ChangeNotifier {

lib/views/messageview.dart

@@ -18,6 +18,14 @@ class _MessageViewState extends State<MessageView> {
   final ctrlrCompose = TextEditingController();
   final focusNode = FocusNode();
 
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    if (Provider.of<ContactInfoState>(context, listen: false).unreadMessages > 0) {
+      Provider.of<ContactInfoState>(context, listen: false).unreadMessages = 0;
+    }
+  }
+
   @override
   void dispose() {
     focusNode.dispose();