forked from firka/student-legacy
65 lines
2.1 KiB
Dart
65 lines
2.1 KiB
Dart
import 'package:refilc/api/providers/user_provider.dart';
|
|
import 'package:refilc/api/providers/database_provider.dart';
|
|
import 'package:refilc/models/user.dart';
|
|
import 'package:refilc_kreta_api/client/api.dart';
|
|
import 'package:refilc_kreta_api/client/client.dart';
|
|
import 'package:refilc_kreta_api/models/exam.dart';
|
|
import 'package:flutter/material.dart';
|
|
import 'package:provider/provider.dart';
|
|
|
|
class ExamProvider with ChangeNotifier {
|
|
late List<Exam> _exams;
|
|
late BuildContext _context;
|
|
List<Exam> get exams => _exams;
|
|
|
|
ExamProvider({
|
|
List<Exam> initialExams = const [],
|
|
required BuildContext context,
|
|
}) {
|
|
_exams = List.castFrom(initialExams);
|
|
_context = context;
|
|
|
|
if (_exams.isEmpty) restore();
|
|
}
|
|
|
|
Future<void> restore() async {
|
|
String? userId = Provider.of<UserProvider>(_context, listen: false).id;
|
|
|
|
// Load exams from the database
|
|
if (userId != null) {
|
|
var dbExams = await Provider.of<DatabaseProvider>(_context, listen: false)
|
|
.userQuery
|
|
.getExams(userId: userId);
|
|
_exams = dbExams;
|
|
notifyListeners();
|
|
}
|
|
}
|
|
|
|
// Fetches Exams from the Kreta API then stores them in the database
|
|
Future<void> fetch() async {
|
|
User? user = Provider.of<UserProvider>(_context, listen: false).user;
|
|
if (user == null) throw "Cannot fetch Exams for User null";
|
|
String iss = user.instituteCode;
|
|
|
|
List? examsJson = await Provider.of<KretaClient>(_context, listen: false)
|
|
.getAPI(KretaAPI.exams(iss));
|
|
if (examsJson == null) throw "Cannot fetch Exams for User ${user.id}";
|
|
List<Exam> exams = examsJson.map((e) => Exam.fromJson(e)).toList();
|
|
|
|
if (exams.isNotEmpty || _exams.isNotEmpty) await store(exams);
|
|
}
|
|
|
|
// Stores Exams in the database
|
|
Future<void> store(List<Exam> exams) async {
|
|
User? user = Provider.of<UserProvider>(_context, listen: false).user;
|
|
if (user == null) throw "Cannot store Exams for User null";
|
|
String userId = user.id;
|
|
|
|
await Provider.of<DatabaseProvider>(_context, listen: false)
|
|
.userStore
|
|
.storeExams(exams, userId: userId);
|
|
_exams = exams;
|
|
notifyListeners();
|
|
}
|
|
}
|