Solian/lib/providers/websocket.dart
2024-09-16 11:57:16 +08:00

228 lines
6.6 KiB
Dart

import 'dart:async';
import 'dart:convert';
import 'dart:developer';
import 'dart:io';
import 'package:device_info_plus/device_info_plus.dart';
import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
import 'package:get/get.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:solian/exceptions/request.dart';
import 'package:solian/models/notification.dart';
import 'package:solian/models/packet.dart';
import 'package:solian/models/pagination.dart';
import 'package:solian/platform.dart';
import 'package:solian/providers/auth.dart';
import 'package:solian/services.dart';
import 'package:web_socket_channel/web_socket_channel.dart';
class WebSocketProvider extends GetxController {
RxBool isConnected = false.obs;
RxBool isConnecting = false.obs;
RxInt notificationUnread = 0.obs;
RxList<Notification> notifications =
List<Notification>.empty(growable: true).obs;
WebSocketChannel? websocket;
StreamController<NetworkPackage> stream = StreamController.broadcast();
@override
onInit() {
notifyPrefetch();
super.onInit();
}
void requestPermissions() {
try {
FirebaseMessaging.instance.requestPermission(
alert: true,
announcement: true,
carPlay: true,
badge: true,
sound: true);
} catch (_) {
// When firebase isn't initialized (background service)
FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin =
FlutterLocalNotificationsPlugin();
flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()
?.requestNotificationsPermission();
flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
IOSFlutterLocalNotificationsPlugin>()
?.requestPermissions(
alert: true,
badge: true,
sound: true,
);
flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
MacOSFlutterLocalNotificationsPlugin>()
?.requestPermissions(
alert: true,
badge: true,
sound: true,
);
}
}
Future<void> connect({noRetry = false}) async {
if (isConnected.value) {
return;
} else {
disconnect();
}
final AuthProvider auth = Get.find();
try {
await auth.ensureCredentials();
final uri = Uri.parse(ServiceFinder.buildUrl(
'dealer',
'/api/ws?tk=${auth.credentials!.accessToken}',
).replaceFirst('http', 'ws'));
isConnecting.value = true;
websocket = WebSocketChannel.connect(uri);
await websocket?.ready;
listen();
isConnected.value = true;
} catch (err) {
log('Unable connect dealer via websocket... $err');
if (!noRetry) {
await auth.refreshCredentials();
return connect(noRetry: true);
}
} finally {
isConnecting.value = false;
}
}
void disconnect() {
websocket?.sink.close(WebSocketStatus.normalClosure);
websocket = null;
isConnected.value = false;
}
void listen() {
websocket?.stream.listen(
(event) {
final packet = NetworkPackage.fromJson(jsonDecode(event));
log('Websocket incoming message: ${packet.method} ${packet.message}');
stream.sink.add(packet);
if (packet.method == 'notifications.new') {
notifications.add(Notification.fromJson(packet.payload!));
notificationUnread.value++;
}
},
onDone: () {
isConnected.value = false;
Future.delayed(const Duration(seconds: 1), () => connect());
},
onError: (err) {
isConnected.value = false;
Future.delayed(const Duration(seconds: 3), () => connect());
},
);
}
Future<void> notifyPrefetch() async {
final AuthProvider auth = Get.find();
if (auth.isAuthorized.isFalse) return;
final client = await auth.configureClient('auth');
final resp = await client.get('/notifications?skip=0&take=100');
if (resp.statusCode == 200) {
final result = PaginationResult.fromJson(resp.body);
final data = result.data?.map((x) => Notification.fromJson(x)).toList();
if (data != null) {
notifications.addAll(data);
notificationUnread.value = data.length;
}
}
}
Future<void> registerPushNotifications() async {
if (PlatformInfo.isWeb) return;
final prefs = await SharedPreferences.getInstance();
if (prefs.getBool('service_background_notification') == true) {
log('Background notification service has been enabled, skip register push notifications');
return;
}
final AuthProvider auth = Get.find();
if (auth.isAuthorized.isFalse) return;
late final String? token;
late final String provider;
final deviceUuid = await _getDeviceUuid();
if (deviceUuid == null || deviceUuid.isEmpty) {
log("Unable to active push notifications, couldn't get device uuid");
} else {
log('Device UUID is $deviceUuid');
}
if (PlatformInfo.isIOS || PlatformInfo.isMacOS) {
provider = 'apple';
token = await FirebaseMessaging.instance.getAPNSToken();
} else {
provider = 'firebase';
token = await FirebaseMessaging.instance.getToken();
}
log('Device Push Token is $token');
final client = await auth.configureClient('auth');
final resp = await client.post('/notifications/subscribe', {
'provider': provider,
'device_token': token,
'device_id': deviceUuid,
});
if (resp.statusCode != 200 && resp.statusCode != 400) {
throw RequestException(resp);
}
}
Future<String?> _getDeviceUuid() async {
DeviceInfoPlugin deviceInfo = DeviceInfoPlugin();
if (PlatformInfo.isWeb) {
final webInfo = await deviceInfo.webBrowserInfo;
return webInfo.vendor! +
webInfo.userAgent! +
webInfo.hardwareConcurrency.toString();
}
if (PlatformInfo.isAndroid) {
final androidInfo = await deviceInfo.androidInfo;
return androidInfo.id;
}
if (PlatformInfo.isIOS) {
final iosInfo = await deviceInfo.iosInfo;
return iosInfo.identifierForVendor!;
}
if (PlatformInfo.isLinux) {
final linuxInfo = await deviceInfo.linuxInfo;
return linuxInfo.machineId!;
}
if (PlatformInfo.isWindows) {
final windowsInfo = await deviceInfo.windowsInfo;
return windowsInfo.deviceId;
}
if (PlatformInfo.isMacOS) {
final macosInfo = await deviceInfo.macOsInfo;
return macosInfo.systemGUID;
}
return null;
}
}