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Basic Webuntis error handling

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This commit is contained in:
Elias Müller
2023-03-31 21:24:38 +02:00
parent 4b9994a7ef
commit 9b6a307212
10 changed files with 148 additions and 153 deletions
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24
lib/api/requestCache.dart
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@@ -1,6 +1,8 @@
import 'dart:convert';
import 'dart:developer';
import 'package:localstore/localstore.dart';
import 'package:marianum_mobile/api/webuntis/webuntisError.dart';
abstract class RequestCache<T> {
static const int cacheNothing = 0;
@@ -10,9 +12,12 @@ abstract class RequestCache<T> {
int maxCacheTime;
Function(T) onUpdate;
Function(Exception) onError;
bool? renew;
RequestCache(this.maxCacheTime, this.onUpdate, {this.renew = false});
RequestCache(this.maxCacheTime, this.onUpdate, {this.onError = ignore, this.renew = false});
static void ignore(Exception e) {}
void start(String file, String document) async {
Map<String, dynamic>? tableData = await Localstore.instance.collection(file).doc(document).get();
@@ -24,13 +29,18 @@ abstract class RequestCache<T> {
if(renew == null || !renew!) return;
}
T newValue = await onLoad();
onUpdate(newValue);
try {
T newValue = await onLoad();
onUpdate(newValue);
Localstore.instance.collection(file).doc(document).set({
"json": jsonEncode(newValue),
"lastupdate": DateTime.now().millisecondsSinceEpoch
});
Localstore.instance.collection(file).doc(document).set({
"json": jsonEncode(newValue),
"lastupdate": DateTime.now().millisecondsSinceEpoch
});
} on WebuntisError catch(e) {
log("ERROR CATCHED");
onError(e);
}
}
T onLocalData(String json);

2
lib/api/webuntis/queries/getTimetable/getTimetableCache.dart
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@@ -11,7 +11,7 @@ class GetTimetableCache extends RequestCache<GetTimetableResponse> {
int startdate;
int enddate;
GetTimetableCache({required onUpdate, required this.startdate, required this.enddate}) : super(RequestCache.cacheMinute, onUpdate) {
GetTimetableCache({required onUpdate, onError, required this.startdate, required this.enddate}) : super(RequestCache.cacheMinute, onUpdate, onError: onError) {
start("MarianumMobile", "wu-timetable-$startdate-$enddate");
}

2
lib/api/webuntis/webuntisError.dart
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@@ -1,4 +1,4 @@
class WebuntisError {
class WebuntisError implements Exception {
String message;
int code;

10
lib/data/dataHolder.dart
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@@ -1,3 +1,5 @@
import 'dart:developer';
import 'package:flutter/cupertino.dart';
import 'package:localstore/localstore.dart';
@@ -13,6 +15,12 @@ abstract class DataHolder extends ChangeNotifier {
List<ApiResponse?> properties();
bool primaryLoading() {
return properties().where((element) => element != null).isEmpty;
log(properties().toString());
for(ApiResponse? element in properties()) {
if(element == null) return true;
}
return false;
//return properties().where((element) => element != null).isEmpty;
}
}

39
lib/data/timetable/timetableProps.dart
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@@ -1,4 +1,6 @@
import 'dart:developer';
import 'package:intl/intl.dart';
import 'package:marianum_mobile/api/apiResponse.dart';
import 'package:marianum_mobile/api/webuntis/queries/getHolidays/getHolidaysCache.dart';
@@ -11,6 +13,7 @@ import 'package:marianum_mobile/data/dataHolder.dart';
import '../../api/webuntis/queries/getTimetable/getTimetableCache.dart';
import '../../api/webuntis/queries/getTimetable/getTimetableResponse.dart';
import '../../api/webuntis/webuntisError.dart';
extension DateTimeExtension on DateTime {
DateTime next(int day) {
@@ -40,11 +43,9 @@ class TimetableProps extends DataHolder {
GetHolidaysResponse? _getHolidaysResponse;
GetHolidaysResponse get getHolidaysResponse => _getHolidaysResponse!;
TimetableProps() {
//nearest();
}
WebuntisError? error;
WebuntisError? get getError => error;
bool get hasError => error != null;
@override
List<ApiResponse?> properties() {
@@ -54,12 +55,17 @@ class TimetableProps extends DataHolder {
@override
void run() {
GetTimetableCache(
startdate: int.parse(DateFormat("yyyyMMdd").format(startDate)),
enddate: int.parse(DateFormat("yyyyMMdd").format(endDate)),
onUpdate: (GetTimetableResponse data) => {
_getTimetableResponse = data,
notifyListeners(),
}
startdate: int.parse(DateFormat("yyyyMMdd").format(startDate)),
enddate: int.parse(DateFormat("yyyyMMdd").format(endDate)),
onUpdate: (GetTimetableResponse data) => {
_getTimetableResponse = data,
notifyListeners(),
},
onError: (Exception e) => {
error = e as WebuntisError?,
log("hello there"),
notifyListeners(),
}
);
GetRoomsCache(
@@ -106,8 +112,17 @@ class TimetableProps extends DataHolder {
}
void updateWeek() {
properties().forEach((element) => element = null);
error = null;
notifyListeners();
startDate = getDate(_queryWeek.subtract(Duration(days: _queryWeek.weekday - 1)));
endDate = getDate(_queryWeek.add(Duration(days: DateTime.daysPerWeek - _queryWeek.weekday)));
run();
try {
run();
} on WebuntisError catch(e) {
error = e;
notifyListeners();
log(e.toString());
}
}
}

20
lib/screen/pages/more/overhang.dart
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@@ -1,6 +1,8 @@
import 'package:flutter/material.dart';
import 'package:marianum_mobile/screen/pages/more/roomplan/roomplan.dart';
import 'package:marianum_mobile/screen/settings/settings.dart';
import 'package:persistent_bottom_nav_bar/persistent_tab_view.dart';
import '../../../widget/ListItem.dart';
import 'message/message.dart';
@@ -10,11 +12,19 @@ class Overhang extends StatelessWidget {
@override
Widget build(BuildContext context) {
return ListView(
children: const [
ListItemNavigator(icon: Icons.newspaper, text: "Marianum Message", target: Message()),
ListItemNavigator(icon: Icons.room, text: "Raumplan", target: Roomplan()),
],
return Scaffold(
appBar: AppBar(
title: const Text("Mehr"),
actions: [
IconButton(onPressed: () => PersistentNavBarNavigator.pushNewScreen(context, screen: const Settings(), withNavBar: false), icon: const Icon(Icons.settings))
],
),
body: ListView(
children: const [
ListItemNavigator(icon: Icons.newspaper, text: "Marianum Message", target: Message()),
ListItemNavigator(icon: Icons.room, text: "Raumplan", target: Roomplan()),
],
),
);
}
}

84
lib/screen/pages/timetable/timetable.dart
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@@ -1,7 +1,10 @@
import 'dart:developer';
import 'package:flutter/material.dart';
import 'package:marianum_mobile/data/timetable/timetableProps.dart';
import 'package:marianum_mobile/screen/pages/timetable/weekView.dart';
import 'package:marianum_mobile/widget/errorView.dart';
import 'package:provider/provider.dart';
@@ -26,83 +29,30 @@ class _TimetableState extends State<Timetable> {
@override
Widget build(BuildContext context) {
TimetableProps timetable = Provider.of<TimetableProps>(context, listen: false);
return Scaffold(
appBar: AppBar(
title: const Text("Vertretungsplan"),
actions: [
IconButton(onPressed: () => timetable.switchWeek(previous: true), icon: const Icon(Icons.chevron_left)),
IconButton(onPressed: () => timetable.nearest(), icon: const Icon(Icons.home)),
IconButton(onPressed: () => timetable.switchWeek(), icon: const Icon(Icons.chevron_right))
],
),
body: Consumer<TimetableProps>(
builder: (context, value, child) {
if(value.hasError) {
return ErrorView(icon: Icons.error, text: value.error?.message ?? "Unbekannt?");
}
if(value.primaryLoading()) {
log("LOADING");
return const Center(child: CircularProgressIndicator());
}
TimetableProps timetable = Provider.of<TimetableProps>(context, listen: false);
return Column(
children: [
Expanded(
child: GestureDetector(
child: WeekView(value),
onHorizontalDragUpdate: (details) {
if(!draggable) return;
if(details.delta.dx > 5) {
draggable = false;
timetable.switchWeek(previous: true);
} else if(details.delta.dx < 5) {
draggable = false;
timetable.switchWeek();
}
},
onHorizontalDragEnd: (details) {
draggable = true;
},
),
),
// Flexible(
// child:
// ),
Visibility(
visible: false,
child: Container(
padding: const EdgeInsets.only(top: 5, bottom: 5),
decoration: BoxDecoration(
border: Border(
top: BorderSide(width: 2, color: Theme.of(context).disabledColor)
)
),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
IconButton(
onPressed: () => timetable.switchWeek(previous: true),
icon: const Icon(Icons.navigate_before_sharp),
color: Theme.of(context).primaryColor,
iconSize: 30,
),
Row(
children: [
IconButton(
onPressed: () => timetable.nearest(),
icon: const Icon(Icons.home),
color: Theme.of(context).primaryColor,
iconSize: 30,
),
],
),
IconButton(
onPressed: () => timetable.switchWeek(),
icon: const Icon(Icons.navigate_next_sharp),
color: Theme.of(context).primaryColor,
iconSize: 30,
)
],
),
),
)
],
);
return WeekView(value);
},
),
);

2
lib/screen/pages/timetable/weekView.dart
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@@ -109,6 +109,8 @@ class _WeekViewState extends State<WeekView> {
List<LaneEvents> _buildLaneEvents(TimetableProps data) {
List<LaneEvents> laneEvents = List<LaneEvents>.empty(growable: true);
if(data.primaryLoading()) throw UnimplementedError();
GetTimetableResponse timetable = data.getTimetableResponse;
GetRoomsResponse rooms = data.getRoomsResponse;
GetSubjectsResponse subjects = data.getSubjectsResponse;