275 lines
11 KiB
Dart
275 lines
11 KiB
Dart
// GCG.MeinCantor - Die Schulplattform für Cantorianer.
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// Copyright (C) 2021-2022 Georg-Cantor-Gymnasium Halle (Saale)
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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import 'dart:convert';
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import 'package:flutter_local_notifications/flutter_local_notifications.dart';
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import 'package:intl/intl.dart';
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import 'package:meincantor/timetable.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:http/http.dart' as http;
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import 'package:meincantor/networking.dart';
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Future<void> backgroundFetchTimetable() async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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String? todayTimetable = prefs.getString("todayTimetable");
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String? tomorrowTimetable = prefs.getString("tomorrowTimetable");
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http.Response todayResponse = await fetchClassTimetable(
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"/${DateFormat("yyyyMMdd").format(DateTime.now())}", null);
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http.Response tomorrowResponse = await fetchClassTimetable(
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"/${DateFormat("yyyyMMdd").format(DateTime.now().add(const Duration(days: 1)))}",
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null);
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if (todayResponse.statusCode == 200) {
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if (todayTimetable != todayResponse.body) {
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FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
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FlutterLocalNotificationsPlugin();
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const AndroidNotificationDetails
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androidPlatformChannelSpecificsTodayPlan = AndroidNotificationDetails(
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'de.cantorgymnasium.meincantor.today.plan',
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'Vertretungsplan für heute',
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channelDescription: '',
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importance: Importance.max,
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priority: Priority.high,
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ticker: 'ticker');
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const NotificationDetails platformChannelSpecificsTodayPlan =
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NotificationDetails(
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android: androidPlatformChannelSpecificsTodayPlan);
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const AndroidNotificationDetails
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androidPlatformChannelSpecificsTodayInfo = AndroidNotificationDetails(
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'de.cantorgymnasium.meincantor.today.info',
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'Informationen für heute',
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channelDescription: '',
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importance: Importance.max,
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priority: Priority.high,
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ticker: 'ticker');
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const NotificationDetails platformChannelSpecificsTodayInfo =
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NotificationDetails(
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android: androidPlatformChannelSpecificsTodayInfo);
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List<TimetableLesson> lessonsList =
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ClassTimetable.fromJson(jsonDecode(todayResponse.body)).timetable;
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List<int> changedLessons = [];
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for (var element in lessonsList) {
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if (element.info.isNotEmpty) {
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changedLessons.add(element.count);
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}
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}
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String subtitle;
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if (changedLessons.isNotEmpty && changedLessons.length > 1) {
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subtitle = "Änderungen in den Stunden ";
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for (var i in changedLessons) {
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subtitle += "$i";
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if (changedLessons.indexOf(i) != changedLessons.length - 1) {
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subtitle += ", ";
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}
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}
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} else if (changedLessons.isNotEmpty && changedLessons.length == 1) {
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subtitle = "Änderungen in Stunde ${changedLessons[0]}";
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} else {
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subtitle = "Keine Änderungen im Plan gefunden!";
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}
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await flutterLocalNotificationsPlugin.show(
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0,
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'Neuer Vertretungsplan für heute geladen!',
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subtitle,
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platformChannelSpecificsTodayPlan,
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payload: 'item x');
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if ((jsonDecode(todayResponse.body)["info"] as String).isNotEmpty) {
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await flutterLocalNotificationsPlugin.show(
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1,
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'Informationen für heute',
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(jsonDecode(todayResponse.body)["info"] as String),
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platformChannelSpecificsTodayInfo,
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payload: 'item x');
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}
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prefs.setString("todayTimetable", todayResponse.body);
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}
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}
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if (tomorrowResponse.statusCode == 200) {
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if (tomorrowTimetable != tomorrowResponse.body) {
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FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
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FlutterLocalNotificationsPlugin();
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const AndroidNotificationDetails
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androidPlatformChannelSpecificsTomorrowPlan =
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AndroidNotificationDetails(
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'de.cantorgymnasium.meincantor.tomorrow.plan',
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'Vertretungsplan für morgen',
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channelDescription: '',
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importance: Importance.max,
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priority: Priority.high,
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ticker: 'ticker');
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const NotificationDetails platformChannelSpecificsTomorrowPlan =
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NotificationDetails(
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android: androidPlatformChannelSpecificsTomorrowPlan);
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const AndroidNotificationDetails
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androidPlatformChannelSpecificsTomorrowInfo =
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AndroidNotificationDetails(
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'de.cantorgymnasium.meincantor.tomorrow.info',
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'Informationen für morgen',
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channelDescription: '',
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importance: Importance.max,
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priority: Priority.high,
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ticker: 'ticker');
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const NotificationDetails platformChannelSpecificsTomorrowInfo =
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NotificationDetails(
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android: androidPlatformChannelSpecificsTomorrowInfo);
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List<TimetableLesson> lessonsList =
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ClassTimetable.fromJson(jsonDecode(tomorrowResponse.body)).timetable;
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List<int> changedLessons = [];
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for (var element in lessonsList) {
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if (element.info.isNotEmpty) {
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changedLessons.add(element.count);
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}
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}
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String subtitle;
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if (changedLessons.isNotEmpty && changedLessons.length > 1) {
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subtitle = "Änderungen in den Stunden ";
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for (var i in changedLessons) {
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subtitle += "$i";
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if (changedLessons.indexOf(i) != changedLessons.length - 1) {
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subtitle += ", ";
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}
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}
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} else if (changedLessons.isNotEmpty && changedLessons.length == 1) {
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subtitle = "Änderungen in Stunde ${changedLessons[0]}";
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} else {
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subtitle = "Keine Änderungen im Plan gefunden!";
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}
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await flutterLocalNotificationsPlugin.show(
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2,
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'Neuer Vertretungsplan für morgen geladen!',
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subtitle,
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platformChannelSpecificsTomorrowPlan,
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payload: 'item x');
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if ((jsonDecode(tomorrowResponse.body)["info"] as String).isNotEmpty) {
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await flutterLocalNotificationsPlugin.show(
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3,
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'Informationen für morgen',
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(jsonDecode(tomorrowResponse.body)["info"] as String),
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platformChannelSpecificsTomorrowInfo,
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payload: 'item x');
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}
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prefs.setString("tomorrowTimetable", tomorrowResponse.body);
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}
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}
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}
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Future<void> backgroundFetchArticles() async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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String? articles = prefs.getString("articles");
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String? news = prefs.getString("news");
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http.Response fetchedArticles = await getArticles();
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http.Response fetchedNews = await getNews();
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if (fetchedArticles.statusCode == 200) {
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if (articles != fetchedArticles.body) {
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FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
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FlutterLocalNotificationsPlugin();
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const AndroidNotificationDetails androidPlatformChannelSpecificsSZ =
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AndroidNotificationDetails(
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'de.cantorgymnasium.meincantor.sz', 'Schülerzeitung',
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channelDescription: '',
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importance: Importance.max,
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priority: Priority.high,
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ticker: 'ticker');
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const NotificationDetails platformChannelSpecificsSZ =
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NotificationDetails(android: androidPlatformChannelSpecificsSZ);
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String subtitle;
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List listFetchedArticles = jsonDecode(fetchedArticles.body)["data"];
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if (articles != null && articles.isNotEmpty) {
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List listSavedArticles = jsonDecode(articles)["data"];
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int diff = listFetchedArticles.length - listSavedArticles.length;
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diff == 1
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? subtitle = "1 neuer Artikel!"
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: diff > 1
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? subtitle = "$diff neue Artikel!"
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: subtitle = "Fehler beim Ermitteln der Änderungen!";
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} else {
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int len = listFetchedArticles.length;
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len == 1
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? subtitle = "1 neuer Artikel!"
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: len > 1
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? subtitle = "$len neue Artikel!"
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: subtitle = "Fehler beim Ermitteln der Änderungen!";
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}
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await flutterLocalNotificationsPlugin.show(
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4,
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'Neuer Inhalt von der Schülerzeitung verfügbar!',
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subtitle,
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platformChannelSpecificsSZ,
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payload: 'item x');
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prefs.setString("articles", fetchedArticles.body);
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}
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}
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if (fetchedNews.statusCode == 200) {
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if (news != fetchedNews.body) {
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FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
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FlutterLocalNotificationsPlugin();
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const AndroidNotificationDetails androidPlatformChannelSpecificsNews =
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AndroidNotificationDetails(
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'de.cantorgymnasium.meincantor.news', 'Aktuelles',
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channelDescription: '',
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importance: Importance.max,
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priority: Priority.high,
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ticker: 'ticker');
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const NotificationDetails platformChannelSpecificsNews =
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NotificationDetails(android: androidPlatformChannelSpecificsNews);
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String subtitle;
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List listFetchedNews = jsonDecode(fetchedNews.body)["data"];
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if (news != null && news.isNotEmpty) {
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List listSavedNews = jsonDecode(news)["data"];
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int diff = listFetchedNews.length - listSavedNews.length;
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diff == 1
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? subtitle = "1 neuer Artikel!"
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: diff > 1
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? subtitle = "$diff neue Artikel!"
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: subtitle = "Fehler beim Ermitteln der Änderungen!";
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} else {
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int len = listFetchedNews.length;
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len == 1
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? subtitle = "1 neuer Artikel!"
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: len > 1
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? subtitle = "$len neue Artikel!"
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: subtitle = "Fehler beim Ermitteln der Änderungen!";
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}
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await flutterLocalNotificationsPlugin.show(
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5,
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'Neue Informationen verfügbar!',
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subtitle,
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platformChannelSpecificsNews,
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payload: 'item x');
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prefs.setString("news", fetchedNews.body);
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}
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}
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}
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