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