Line data    Source code

       1             : import 'package:flutter/cupertino.dart';
       2             : 
       3             : import 'contact.dart';
       4             : 
       5             : class RemoteServerInfoState extends ChangeNotifier {
       6             :   final String onion;
       7             :   final int identifier;
       8             :   String _status;
       9             :   String description;
      10             :   List<ContactInfoState> _groups = [];
      11             : 
      12             :   double syncProgress = 0;
      13             :   DateTime lastPreSyncMessagTime = new DateTime(2020);
      14             : 
      15           0 :   RemoteServerInfoState(this.onion, this.identifier, this.description, this._status, {lastPreSyncMessageTime, mostRecentMessageTime}) {
      16           0 :     if (_status == "Authenticated" || _status == "Synced") {
      17           0 :       this.lastPreSyncMessagTime = lastPreSyncMessageTime;
      18           0 :       updateSyncProgressFor(mostRecentMessageTime);
      19             :     }
      20             :   }
      21             : 
      22           0 :   void updateDescription(String newDescription) {
      23           0 :     this.description = newDescription;
      24           0 :     notifyListeners();
      25             :   }
      26             : 
      27           0 :   void clearGroups() {
      28           0 :     _groups = [];
      29             :   }
      30             : 
      31           0 :   void addGroup(ContactInfoState group) {
      32           0 :     _groups.add(group);
      33           0 :     notifyListeners();
      34             :   }
      35             : 
      36           0 :   String get status => _status;
      37           0 :   set status(String newStatus) {
      38           0 :     _status = newStatus;
      39           0 :     if (status == "Authenticated") {
      40             :       // syncing, set lastPreSyncMessageTime
      41           0 :       _groups.forEach((g) {
      42           0 :         if (g.lastMessageReceivedTime.isAfter(lastPreSyncMessagTime)) {
      43           0 :           lastPreSyncMessagTime = g.lastMessageReceivedTime;
      44             :         }
      45             :       });
      46             :     }
      47           0 :     notifyListeners();
      48             :   }
      49             : 
      50             :   // updateSyncProgressFor point takes a message's time, and updates the server sync progress,
      51             :   // based on that point in time between the precalculated lastPreSyncMessagTime and Now
      52           0 :   void updateSyncProgressFor(DateTime point) {
      53           0 :     var range = lastPreSyncMessagTime.toUtc().difference(DateTime.now().toUtc());
      54           0 :     var pointFromStart = lastPreSyncMessagTime.toUtc().difference(point.toUtc());
      55           0 :     if (!pointFromStart.isNegative) {
      56             :       // ! is Negative cus all the duration's we're calculating incidently are negative
      57             :       // this message is from before we think we should be syncing with the server
      58             :       // Can be because of a new server or a full resync, either way, use this (oldest message) as our lastPreSyncMessageTime
      59           0 :       this.lastPreSyncMessagTime = point;
      60           0 :       pointFromStart = lastPreSyncMessagTime.toUtc().difference(point.toUtc());
      61             :     }
      62           0 :     syncProgress = pointFromStart.inSeconds / range.inSeconds;
      63           0 :     notifyListeners();
      64             :   }
      65             : 
      66           0 :   List<ContactInfoState> get groups => _groups.sublist(0); //todo: copy?? dont want caller able to bypass changenotifier
      67             : }