import 'dart:async';

import 'package:flutter/services.dart';

import '../api/oa_client.dart';

class PushBridge {
  PushBridge._();
  static const _m = MethodChannel('com.fysxkj.oa/ota');
  static const _ev = EventChannel('com.fysxkj.oa/push');
  static StreamSubscription<dynamic>? _sub;

  static Future<void> requestFirstLoginPermissions() async {
    try {
      await _m.invokeMethod('requestFirstLoginPermissions');
    } catch (_) {
      try {
        await _m.invokeMethod('requestPushPermission');
      } catch (_) {}
    }
  }

  static Future<void> register(OaClient api) async {
    await requestFirstLoginPermissions();
    for (var i = 0; i < 10; i++) {
      try {
        final raw = await _m.invokeMethod('getPushToken');
        if (raw is Map) {
          final regId = '${raw['regId'] ?? ''}';
          if (regId.isNotEmpty) {
            await api.post('/push/devices', {
              'vendor': '${raw['vendor'] ?? 'vivo'}',
              'regId': regId,
              'brand': '${raw['brand'] ?? ''}',
              'model': '${raw['model'] ?? ''}',
            });
            return;
          }
        }
      } catch (_) {}
      await Future<void>.delayed(const Duration(seconds: 2));
    }
  }

  static Future<void> showOnline(String title, String content, {Map<String, String> extras = const {}}) async {
    try {
      await _m.invokeMethod('showOnlineNotification', {'title': title, 'content': content, 'extras': extras});
    } catch (_) {}
  }

  static Future<Map<String, String>?> consumeLaunch() async {
    try {
      final raw = await _m.invokeMethod('consumeLaunchPush');
      if (raw is Map) return raw.map((k, v) => MapEntry('$k', '$v'));
    } catch (_) {}
    return null;
  }

  static void listen(void Function(Map<String, String>) onClick) {
    _sub?.cancel();
    _sub = _ev.receiveBroadcastStream().listen((event) {
      if (event is Map) {
        onClick(event.map((k, v) => MapEntry('$k', '$v')));
      }
    });
  }

  static void stop() {
    _sub?.cancel();
    _sub = null;
  }

  static Future<Map<String, dynamic>?> oemStatus() async {
    try {
      final raw = await _m.invokeMethod('oemStatus');
      if (raw is Map) return Map<String, dynamic>.from(raw);
    } catch (_) {}
    return null;
  }

  static Future<void> openOemKeepAlive() async {
    try {
      await _m.invokeMethod('openOemKeepAlive');
    } catch (_) {}
  }

  static Future<void> requestBattery() async {
    try {
      await _m.invokeMethod('requestBattery');
    } catch (_) {}
  }

  static Future<void> markOemPrompted() async {
    try {
      await _m.invokeMethod('markOemPrompted');
    } catch (_) {}
  }
}