forked from firka/student-legacy
66 lines
2.5 KiB
Dart
66 lines
2.5 KiB
Dart
import 'package:filcnaplo/api/providers/user_provider.dart';
|
|
import 'package:filcnaplo/api/providers/database_provider.dart';
|
|
import 'package:filcnaplo/models/user.dart';
|
|
import 'package:filcnaplo_kreta_api/client/api.dart';
|
|
import 'package:filcnaplo_kreta_api/client/client.dart';
|
|
import 'package:filcnaplo_kreta_api/models/homework.dart';
|
|
import 'package:flutter/material.dart';
|
|
import 'package:provider/provider.dart';
|
|
|
|
class HomeworkProvider with ChangeNotifier {
|
|
late List<Homework> _homework;
|
|
late BuildContext _context;
|
|
List<Homework> get homework => _homework;
|
|
|
|
HomeworkProvider({
|
|
List<Homework> initialHomework = const [],
|
|
required BuildContext context,
|
|
}) {
|
|
_homework = List.castFrom(initialHomework);
|
|
_context = context;
|
|
|
|
if (_homework.isEmpty) restore();
|
|
}
|
|
|
|
Future<void> restore() async {
|
|
String? userId = Provider.of<UserProvider>(_context, listen: false).id;
|
|
|
|
// Load homework from the database
|
|
if (userId != null) {
|
|
var dbHomework = await Provider.of<DatabaseProvider>(_context, listen: false).userQuery.getHomework(userId: userId);
|
|
_homework = dbHomework;
|
|
notifyListeners();
|
|
}
|
|
}
|
|
|
|
// Fetches Homework from the Kreta API then stores them in the database
|
|
Future<void> fetch({DateTime? from, bool db = true}) async {
|
|
User? user = Provider.of<UserProvider>(_context, listen: false).user;
|
|
if (user == null) throw "Cannot fetch Homework for User null";
|
|
|
|
String iss = user.instituteCode;
|
|
List? homeworkJson = await Provider.of<KretaClient>(_context, listen: false).getAPI(KretaAPI.homework(iss, start: from));
|
|
if (homeworkJson == null) throw "Cannot fetch Homework for User ${user.id}";
|
|
|
|
List<Homework> homework = [];
|
|
await Future.forEach(homeworkJson.cast<Map>(), (Map hw) async {
|
|
Map? e = await Provider.of<KretaClient>(_context, listen: false).getAPI(KretaAPI.homework(iss, id: hw["Uid"]));
|
|
if (e != null) homework.add(Homework.fromJson(e));
|
|
});
|
|
|
|
if (homework.isEmpty && _homework.isEmpty) return;
|
|
|
|
if (db) await store(homework);
|
|
_homework = homework;
|
|
notifyListeners();
|
|
}
|
|
|
|
// Stores Homework in the database
|
|
Future<void> store(List<Homework> homework) async {
|
|
User? user = Provider.of<UserProvider>(_context, listen: false).user;
|
|
if (user == null) throw "Cannot store Homework for User null";
|
|
String userId = user.id;
|
|
await Provider.of<DatabaseProvider>(_context, listen: false).userStore.storeHomework(homework, userId: userId);
|
|
}
|
|
}
|