feat: poll to refresh

Closes #22

firka/lib/helpers/update_notifier.dart

@@ -0,0 +1,7 @@
+import 'package:flutter/cupertino.dart';
+
+class UpdateNotifier with ChangeNotifier {
+  void update() {
+    notifyListeners();
+  }
+}

firka/lib/ui/phone/pages/home/home_grades.dart

@@ -10,15 +10,21 @@ import '../../../../helpers/api/model/grade.dart';
 import '../../../../helpers/api/model/subject.dart';
 import '../../../../helpers/api/model/timetable.dart';
 import '../../../../helpers/debug_helper.dart';
+import '../../../../helpers/update_notifier.dart';
 import '../../../../main.dart';
 import '../../../model/style.dart';
 import '../../../widget/delayed_spinner.dart';
 
 class HomeGradesScreen extends StatefulWidget {
   final AppInitialization data;
+  final UpdateNotifier updateNotifier;
+  final UpdateNotifier finishNotifier;
+
   final void Function(ActiveHomePage, bool) cb;
 
-  const HomeGradesScreen(this.data, this.cb, {super.key});
+  const HomeGradesScreen(
+      this.data, this.updateNotifier, this.finishNotifier, this.cb,
+      {super.key});
 
   @override
   State<StatefulWidget> createState() => _HomeGradesScreen();
@@ -28,10 +34,33 @@ class _HomeGradesScreen extends State<HomeGradesScreen> {
   ApiResponse<List<Grade>>? grades;
   ApiResponse<List<Lesson>>? week;
 
+  @override
+  void didUpdateWidget(HomeGradesScreen oldWidget) {
+    super.didUpdateWidget(oldWidget);
+
+    widget.updateNotifier.removeListener(updateListener);
+    widget.updateNotifier.addListener(updateListener);
+  }
+
+  void updateListener() async {
+    var now = timeNow();
+    var start = now.subtract(Duration(days: now.weekday - 1));
+    var end = start.add(Duration(days: 6));
+
+    grades = await widget.data.client.getGrades(forceCache: false);
+    week = await widget.data.client.getTimeTable(start, end, forceCache: false);
+
+    if (mounted) setState(() {});
+
+    widget.finishNotifier.update();
+  }
+
   @override
   void initState() {
     super.initState();
 
+    widget.updateNotifier.addListener(updateListener);
+
     (() async {
       var now = timeNow();
       var start = now.subtract(Duration(days: now.weekday - 1));
@@ -44,6 +73,12 @@ class _HomeGradesScreen extends State<HomeGradesScreen> {
     })();
   }
 
+  @override
+  void dispose() {
+    super.dispose();
+    widget.updateNotifier.removeListener(updateListener);
+  }
+
   @override
   Widget build(BuildContext context) {
     if (grades == null || week == null) {

firka/lib/ui/phone/pages/home/home_grades_subject.dart

@@ -4,6 +4,7 @@ import 'package:firka/helpers/ui/firka_card.dart';
 import 'package:firka/helpers/ui/grade.dart';
 import 'package:flutter/material.dart';
 
+import '../../../../helpers/update_notifier.dart';
 import '../../../../main.dart';
 import '../../../model/style.dart';
 import '../../../widget/delayed_spinner.dart';
@@ -11,8 +12,12 @@ import '../../../widget/delayed_spinner.dart';
 class HomeGradesSubjectScreen extends StatefulWidget {
   final AppInitialization data;
   final String subPageUid;
+  final UpdateNotifier updateNotifier;
+  final UpdateNotifier finishNotifier;
 
-  const HomeGradesSubjectScreen(this.data, this.subPageUid, {super.key});
+  const HomeGradesSubjectScreen(
+      this.data, this.updateNotifier, this.finishNotifier, this.subPageUid,
+      {super.key});
 
   @override
   State<StatefulWidget> createState() => _HomeGradesSubjectScreen();
@@ -21,10 +26,31 @@ class HomeGradesSubjectScreen extends StatefulWidget {
 class _HomeGradesSubjectScreen extends State<HomeGradesSubjectScreen> {
   Iterable<Grade>? grades;
 
+  @override
+  void didUpdateWidget(HomeGradesSubjectScreen oldWidget) {
+    super.didUpdateWidget(oldWidget);
+
+    widget.updateNotifier.removeListener(updateListener);
+    widget.updateNotifier.addListener(updateListener);
+  }
+
+  void updateListener() async {
+    grades = (await widget.data.client.getGrades(forceCache: false))
+        .response!
+        .where((grade) => grade.subject.uid == widget.subPageUid)
+        .where((grade) => grade.type.name != "felevi_jegy_ertekeles");
+
+    if (mounted) setState(() {});
+
+    widget.finishNotifier.update();
+  }
+
   @override
   void initState() {
     super.initState();
 
+    widget.updateNotifier.addListener(updateListener);
+
     (() async {
       grades = (await widget.data.client.getGrades())
           .response!
@@ -35,6 +61,12 @@ class _HomeGradesSubjectScreen extends State<HomeGradesSubjectScreen> {
     })();
   }
 
+  @override
+  void dispose() {
+    super.dispose();
+    widget.updateNotifier.removeListener(updateListener);
+  }
+
   @override
   Widget build(BuildContext context) {
     if (grades != null) {

firka/lib/ui/phone/pages/home/home_main.dart

@@ -9,14 +9,18 @@ import 'package:flutter/material.dart';
 import '../../../../helpers/api/model/student.dart';
 import '../../../../helpers/api/model/timetable.dart';
 import '../../../../helpers/debug_helper.dart';
+import '../../../../helpers/update_notifier.dart';
 import '../../../../main.dart';
 import '../../widgets/home_main_welcome.dart';
 import '../../widgets/lesson_big.dart';
 
 class HomeMainScreen extends StatefulWidget {
   final AppInitialization data;
+  final UpdateNotifier updateNotifier;
+  final UpdateNotifier finishNotifier;
 
-  const HomeMainScreen(this.data, {super.key});
+  const HomeMainScreen(this.data, this.updateNotifier, this.finishNotifier,
+      {super.key});
 
   @override
   State<HomeMainScreen> createState() => _HomeMainScreen();
@@ -29,34 +33,63 @@ class _HomeMainScreen extends State<HomeMainScreen> {
   List<Lesson>? lessons;
   Student? student;
   Timer? timer;
-  bool disposed = false;
+
+  @override
+  void didUpdateWidget(HomeMainScreen oldWidget) {
+    super.didUpdateWidget(oldWidget);
+
+    widget.updateNotifier.removeListener(updateListener);
+    widget.updateNotifier.addListener(updateListener);
+  }
+
+  void updateListener() async {
+    final newData = await loadData(now, forceCache: false);
+
+    if (mounted) {
+      setState(() {
+        lessons = newData.$1;
+        student = newData.$2;
+      });
+    }
+    widget.finishNotifier.update();
+  }
+
+  Future<(List<Lesson>, Student)> loadData(DateTime now,
+      {bool forceCache = true}) async {
+    var midnight = now.getMidnight();
+
+    var respTT = await widget.data.client.getTimeTable(
+        midnight, midnight.add(Duration(hours: 23, minutes: 59)),
+        forceCache: forceCache);
+
+    var respStudent =
+        await widget.data.client.getStudent(forceCache: forceCache);
+
+    return Future.value((respTT.response!, respStudent.response!));
+  }
 
   @override
   void initState() {
     super.initState();
 
+    widget.updateNotifier.addListener(updateListener);
+
     now = timeNow();
-    var midnight = now.getMidnight();
-    (() async {
-      var resp = await widget.data.client.getTimeTable(
-          midnight, midnight.add(Duration(hours: 23, minutes: 59)));
+    if (!mounted) return;
 
-      if (disposed) return;
-      setState(() {
-        lessons = resp.response!;
-      });
-    })();
     (() async {
-      var resp = await widget.data.client.getStudent();
+      final newData = await loadData(now);
 
-      if (disposed) return;
-      setState(() {
-        student = resp.response!;
-      });
+      if (mounted) {
+        setState(() {
+          lessons = newData.$1;
+          student = newData.$2;
+        });
+      }
     })();
 
     timer = Timer.periodic(Duration(seconds: 1), (timer) async {
-      if (disposed) return;
+      if (!mounted) return;
       setState(() {
         now = timeNow();
       });
@@ -67,6 +100,8 @@ class _HomeMainScreen extends State<HomeMainScreen> {
   void dispose() {
     super.dispose();
 
+    widget.updateNotifier.removeListener(updateListener);
+
     timer?.cancel();
   }
 

firka/lib/ui/phone/pages/home/home_timetable.dart

@@ -8,6 +8,7 @@ import 'package:flutter/material.dart';
 import 'package:majesticons_flutter/majesticons_flutter.dart';
 import 'package:transparent_pointer/transparent_pointer.dart';
 
+import '../../../../helpers/update_notifier.dart';
 import '../../../../main.dart';
 import '../../../widget/firka_icon.dart';
 import '../../screens/home/home_screen.dart';
@@ -16,9 +17,14 @@ import '../../widgets/tt_day.dart';
 
 class HomeTimetableScreen extends StatefulWidget {
   final AppInitialization data;
+  final UpdateNotifier updateNotifier;
+  final UpdateNotifier finishNotifier;
+
   final void Function(ActiveHomePage, bool) cb;
 
-  const HomeTimetableScreen(this.data, this.cb, {super.key});
+  const HomeTimetableScreen(
+      this.data, this.updateNotifier, this.finishNotifier, this.cb,
+      {super.key});
 
   @override
   State<HomeTimetableScreen> createState() => _HomeTimetableScreen();
@@ -33,11 +39,12 @@ class _HomeTimetableScreen extends State<HomeTimetableScreen> {
 
   _HomeTimetableScreen();
 
-  Future<void> initForWeek(DateTime now) async {
+  Future<void> initForWeek(DateTime now, {bool forceCache = true}) async {
     var monday = now.getMonday().getMidnight();
     var sunday = monday.add(Duration(days: 6));
 
-    var lessonsResp = await widget.data.client.getTimeTable(monday, sunday);
+    var lessonsResp = await widget.data.client
+        .getTimeTable(monday, sunday, forceCache: forceCache);
     List<DateTime> dates = List.empty(growable: true);
 
     if (lessonsResp.response != null) {
@@ -73,14 +80,39 @@ class _HomeTimetableScreen extends State<HomeTimetableScreen> {
     });
   }
 
+  void updateListener() async {
+    if (now != null) {
+      await initForWeek(now!, forceCache: false);
+      setState(() {});
+    }
+    widget.finishNotifier.update();
+  }
+
+  @override
+  void didUpdateWidget(HomeTimetableScreen oldWidget) {
+    super.didUpdateWidget(oldWidget);
+
+    widget.updateNotifier.removeListener(updateListener);
+    widget.updateNotifier.addListener(updateListener);
+  }
+
   @override
   void initState() {
     super.initState();
 
+    widget.updateNotifier.addListener(updateListener);
+
     now = timeNow();
     initForWeek(now!);
   }
 
+  @override
+  void dispose() {
+    super.dispose();
+
+    widget.updateNotifier.removeListener(updateListener);
+  }
+
   @override
   Widget build(BuildContext context) {
     if (lessons != null && dates != null) {

firka/lib/ui/phone/pages/home/home_timetable_mo.dart

@@ -9,15 +9,20 @@ import 'package:flutter_staggered_grid_view/flutter_staggered_grid_view.dart';
 import 'package:majesticons_flutter/majesticons_flutter.dart';
 import 'package:transparent_pointer/transparent_pointer.dart';
 
+import '../../../../helpers/update_notifier.dart';
 import '../../../../main.dart';
 import '../../../widget/firka_icon.dart';
 import '../../screens/home/home_screen.dart';
 
 class HomeTimetableMonthlyScreen extends StatefulWidget {
   final AppInitialization data;
+  final UpdateNotifier updateNotifier;
+  final UpdateNotifier finishNotifier;
   final void Function(ActiveHomePage, bool) cb;
 
-  const HomeTimetableMonthlyScreen(this.data, this.cb, {super.key});
+  const HomeTimetableMonthlyScreen(
+      this.data, this.updateNotifier, this.finishNotifier, this.cb,
+      {super.key});
 
   @override
   State<HomeTimetableMonthlyScreen> createState() =>
@@ -35,7 +40,7 @@ class _HomeTimetableMonthlyScreen extends State<HomeTimetableMonthlyScreen> {
 
   _HomeTimetableMonthlyScreen();
 
-  Future<void> initForMonth(DateTime now) async {
+  Future<void> initForMonth(DateTime now, {bool forceCache = true}) async {
     final monthStart = DateTime.utc(now.year, now.month, 1);
     final monthEnd =
         DateTime.utc(now.year, now.month + 1).subtract(Duration(days: 1));
@@ -46,8 +51,8 @@ class _HomeTimetableMonthlyScreen extends State<HomeTimetableMonthlyScreen> {
 
     var days = end.difference(start).inDays;
 
-    var lessonsResp =
-        await widget.data.client.getTimeTable(monthStart, monthEnd);
+    var lessonsResp = await widget.data.client
+        .getTimeTable(monthStart, monthEnd, forceCache: forceCache);
     List<DateTime> dates = List.empty(growable: true);
 
     for (var i = 0; i < days; i++) {
@@ -65,14 +70,39 @@ class _HomeTimetableMonthlyScreen extends State<HomeTimetableMonthlyScreen> {
     }
   }
 
+  @override
+  void didUpdateWidget(HomeTimetableMonthlyScreen oldWidget) {
+    super.didUpdateWidget(oldWidget);
+
+    widget.updateNotifier.removeListener(updateListener);
+    widget.updateNotifier.addListener(updateListener);
+  }
+
+  void updateListener() async {
+    if (now != null) {
+      await initForMonth(now!, forceCache: false);
+      setState(() {});
+    }
+    widget.finishNotifier.update();
+  }
+
   @override
   void initState() {
     super.initState();
 
+    widget.updateNotifier.addListener(updateListener);
+
     now = timeNow();
     initForMonth(now!);
   }
 
+  @override
+  void dispose() {
+    super.dispose();
+
+    widget.updateNotifier.removeListener(updateListener);
+  }
+
   @override
   Widget build(BuildContext context) {
     if (lessons != null && dates != null) {

firka/lib/ui/phone/screens/home/home_screen.dart

@@ -4,6 +4,7 @@ import 'dart:math';
 import 'package:firka/helpers/api/client/kreta_client.dart';
 import 'package:firka/helpers/api/exceptions/token.dart';
 import 'package:firka/helpers/settings/setting.dart';
+import 'package:firka/helpers/update_notifier.dart';
 import 'package:firka/main.dart';
 import 'package:firka/ui/model/style.dart';
 import 'package:firka/ui/phone/pages/extras/main_wear_pair.dart';
@@ -32,8 +33,10 @@ class HomeScreen extends StatefulWidget {
   final AppInitialization data;
   final bool watchPair;
   final String? model;
+  final UpdateNotifier updateNotifier = UpdateNotifier();
+  final UpdateNotifier updateFinishedNotifier = UpdateNotifier();
 
-  const HomeScreen(this.data, this.watchPair, {this.model, super.key});
+  HomeScreen(this.data, this.watchPair, {this.model, super.key});
 
   @override
   State<HomeScreen> createState() => _HomeScreenState();
@@ -266,9 +269,15 @@ class _HomeScreenState extends State<HomeScreen> {
   }
 
   void _onRefresh() async {
-    await Future.delayed(Duration(milliseconds: 1000));
+    late void Function() finishListener;
+    finishListener = () {
+      widget.updateFinishedNotifier.removeListener(finishListener);
 
-    _refreshController.refreshCompleted();
+      _refreshController.refreshCompleted();
+    };
+
+    widget.updateFinishedNotifier.addListener(finishListener);
+    widget.updateNotifier.update();
   }
 
   void _onLoading() async {
@@ -364,7 +373,14 @@ class _HomeScreenState extends State<HomeScreen> {
                       children: [
                         Row(
                           mainAxisAlignment: MainAxisAlignment.center,
-                          children: [HomeSubPage(page, setPageCB, widget.data)],
+                          children: [
+                            HomeSubPage(
+                                page,
+                                setPageCB,
+                                widget.data,
+                                widget.updateNotifier,
+                                widget.updateFinishedNotifier)
+                          ],
                         ),
                         Container(
                           decoration: BoxDecoration(
@@ -501,24 +517,32 @@ class HomeSubPage extends StatelessWidget {
   final ActiveHomePage page;
   final void Function(ActiveHomePage, bool) cb;
   final AppInitialization data;
+  final UpdateNotifier _updateNotifier;
+  final UpdateNotifier _updateFinishNotifier;
 
-  const HomeSubPage(this.page, this.cb, this.data, {super.key});
+  const HomeSubPage(this.page, this.cb, this.data, this._updateNotifier,
+      this._updateFinishNotifier,
+      {super.key});
 
   @override
   Widget build(BuildContext context) {
     switch (page.page) {
       case HomePages.home:
-        return HomeMainScreen(data);
+        return HomeMainScreen(data, _updateNotifier, _updateFinishNotifier);
       case HomePages.grades:
         if (page.subPageUid != null) {
-          return HomeGradesSubjectScreen(data, page.subPageUid!);
+          return HomeGradesSubjectScreen(
+              data, _updateNotifier, _updateFinishNotifier, page.subPageUid!);
         } else {
-          return HomeGradesScreen(data, cb);
+          return HomeGradesScreen(
+              data, _updateNotifier, _updateFinishNotifier, cb);
         }
       case HomePages.timetable:
-        return HomeTimetableScreen(data, cb);
+        return HomeTimetableScreen(
+            data, _updateNotifier, _updateFinishNotifier, cb);
       case HomePages.timetableMo:
-        return HomeTimetableMonthlyScreen(data, cb);
+        return HomeTimetableMonthlyScreen(
+            data, _updateNotifier, _updateFinishNotifier, cb);
     }
   }
 }