Fixed countdown

lib/functions/format_time.dart

@@ -14,3 +14,16 @@ String formatTimeOfDay(TimeOfDay timestamp, String format) {
   DateFormat f = DateFormat(format);
   return f.format(DateTime(0, 0, 0, timestamp.hour, timestamp.minute));
 }
+
+String formatRemainingSeconds(int seconds) {
+  int h, m, s;
+  h = seconds ~/ 3600;
+  m = ((seconds - h * 3600)) ~/ 60;
+  s = seconds - (h * 3600) - (m * 60);
+
+  String hourLeft = h.toString().length < 2 ? "0$h" : h.toString();
+  String minuteLeft = m.toString().length < 2 ? "0$m" : m.toString();
+  String secondsLeft = s.toString().length < 2 ? "0$s" : s.toString();
+
+  return "$hourLeft:$minuteLeft:$secondsLeft";
+}

lib/providers/status_provider.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 
 import 'package:adguard_home_manager/models/server_status.dart';
@@ -19,6 +21,11 @@ class StatusProvider with ChangeNotifier {
   List<String> _protectionsManagementProcess = []; // protections that are currenty being enabled or disabled
   FilteringStatus? _filteringStatus;
 
+  // Countdown
+  DateTime? _currentDeadline;
+  Timer? _countdown;
+  int _remaining = 0;
+
   LoadStatus get loadStatus {
     return _loadStatus;
   }
@@ -35,10 +42,24 @@ class StatusProvider with ChangeNotifier {
     return _filteringStatus;
   }
 
+  int get remainingTime {
+    return _remaining;
+  }
+
+  DateTime? get currentDeadline {
+    return _currentDeadline;
+  }
+
   void setServerStatusData({
     required ServerStatus data,
   }) {
     _serverStatus = data;
+    if (
+      (_countdown == null ||( _countdown != null && _countdown!.isActive == false)) && 
+      data.disabledUntil != null
+    ) {
+      startCountdown(data.disabledUntil!);
+    }
     notifyListeners();
   }
 
@@ -52,6 +73,37 @@ class StatusProvider with ChangeNotifier {
     notifyListeners();
   }
 
+  void startCountdown(DateTime deadline) {
+    stopCountdown();
+
+    _currentDeadline = deadline;
+    _remaining = deadline.difference(DateTime.now()).inSeconds+1;
+
+    _countdown = Timer.periodic(
+      const Duration(seconds: 1),
+      (Timer timer) async {
+        if (_remaining == 0) {
+          timer.cancel();
+          notifyListeners();
+          getServerStatus();
+        }
+        else {
+          _remaining = _remaining - 1;
+          notifyListeners();
+        }
+      },
+    );
+  }
+
+  void stopCountdown() {
+    if (_countdown != null && _countdown!.isActive) {
+      _countdown!.cancel();
+      _countdown = null;
+      _remaining = 0;
+      _currentDeadline = null;
+    }
+  }
+
   Future<dynamic> updateBlocking({
     required String block, 
     required bool newStatus,
@@ -72,12 +124,15 @@ class StatusProvider with ChangeNotifier {
         if (result['result'] == 'success') {
           _serverStatus!.generalEnabled = newStatus;
           if (time != null) {
+            final deadline = generateTimeDeadline(time);
             _serverStatus!.timeGeneralDisabled = time;
-            _serverStatus!.disabledUntil = generateTimeDeadline(time);
+            _serverStatus!.disabledUntil = deadline;
+            startCountdown(deadline);
           }
           else {
             _serverStatus!.timeGeneralDisabled = 0;
             _serverStatus!.disabledUntil = null;
+            stopCountdown();
           }
           notifyListeners();
           return null;

lib/screens/home/management_modal.dart

@@ -11,7 +11,7 @@ import 'package:flutter_gen/gen_l10n/app_localizations.dart';
 import 'package:adguard_home_manager/functions/snackbar.dart';
 import 'package:adguard_home_manager/functions/compare_versions.dart';
 import 'package:adguard_home_manager/providers/status_provider.dart';
-import 'package:adguard_home_manager/functions/time_server_disabled.dart';
+import 'package:adguard_home_manager/functions/format_time.dart';
 import 'package:adguard_home_manager/providers/app_config_provider.dart';
 
 class ManagementModal extends StatefulWidget {
@@ -31,10 +31,6 @@ class _ManagementModalState extends State<ManagementModal> with SingleTickerProv
   late Animation<double> animation;
   final ExpandableController expandableController = ExpandableController();
 
-  DateTime? currentDeadline;
-  Timer? countdown;
-  int start = 0;
-
   @override
   void initState() {
     expandableController.addListener(() async {
@@ -65,7 +61,6 @@ class _ManagementModalState extends State<ManagementModal> with SingleTickerProv
 
   @override
   void dispose() {
-    if (countdown != null) countdown!.cancel();
     animationController.dispose();
     super.dispose();
   }
@@ -75,51 +70,6 @@ class _ManagementModalState extends State<ManagementModal> with SingleTickerProv
     final statusProvider = Provider.of<StatusProvider>(context);
     final appConfigProvider = Provider.of<AppConfigProvider>(context);
 
-    void startTimer(DateTime deadline) {
-      setState(() {
-        currentDeadline = deadline;
-        start = deadline.difference(DateTime.now()).inSeconds+1;
-      });
-
-      const oneSec = Duration(seconds: 1);
-      countdown = Timer.periodic(
-        oneSec,
-        (Timer timer) async {
-          if (start == 0) {
-            setState(() {
-              timer.cancel();
-            });
-            final result = await statusProvider.getServerStatus();
-            if (result == false) {
-              setState(() {
-                start = start - 1;
-              });
-            }
-          }
-        },
-      );
-    }
-
-    if (
-      statusProvider.serverStatus != null && 
-      statusProvider.serverStatus!.disabledUntil != null && 
-      statusProvider.serverStatus!.disabledUntil != currentDeadline
-    ) {
-      startTimer(statusProvider.serverStatus!.disabledUntil!);
-    }
-
-    if (
-      statusProvider.serverStatus != null && 
-      statusProvider.serverStatus!.generalEnabled == true
-    ) {
-      setState(() {
-        start = 0;
-        currentDeadline = null;
-        if (countdown != null) countdown!.cancel();
-        countdown = null;
-      });
-    }
-
     void updateBlocking({
       required bool value, 
       required String filter,
@@ -178,8 +128,8 @@ class _ManagementModalState extends State<ManagementModal> with SingleTickerProv
                     ),
                     if (statusProvider.serverStatus!.timeGeneralDisabled > 0) ...[
                       const SizedBox(height: 2),
-                      if (currentDeadline != null) Text(
+                      if (statusProvider.currentDeadline != null) Text(
-                        "${AppLocalizations.of(context)!.remainingTime}: ${generateRemainingTimeString(currentDeadline!.difference(DateTime.now()))}"
+                        "${AppLocalizations.of(context)!.remainingTime}: ${formatRemainingSeconds(statusProvider.remainingTime)}"
                       )
                     ]
                   ],