import 'package:firebase_remote_config/firebase_remote_config.dart';
import 'package:logging/logging.dart';

///firebase 远程参数配置封装
class RemoteConfig {
  // 本地默认值常量
  static const Map<String, dynamic> _defaults = {
    "inters_free_levels": 3,
    "enter_inters_free_duration": 5,
    "quit_inters_free_duration": 3,
    "rate_us_levels_count": 2,
    "ad_revenue_threshold": 0.01,
    "banner_free_duration": 10,
    "ad_crash_prone_devices": "hisense,itel,huawei y9",
  };

  ///配置参数（带默认值回退）
  int get intersFreeLevels => _remoteConfig.getInt('inters_free_levels');
  int get enterIntersFreeDuration => _remoteConfig.getInt('enter_inters_free_duration');
  int get quitIntersFreeDuration => _remoteConfig.getInt('quit_inters_free_duration');
  int get rateUsLevelCount => _remoteConfig.getInt('rate_us_levels_count');
  double get adRevenueThreshold => _remoteConfig.getDouble('ad_revenue_threshold');
  int get bannerFreeDuration => _remoteConfig.getInt('banner_free_duration');
  String get adCrashProneDevices => _remoteConfig.getString('ad_crash_prone_devices');

  static final _log = Logger('RemoteConfig');
  RemoteConfig._internal();
  static final RemoteConfig _instance = RemoteConfig._internal();
  factory RemoteConfig() => _instance;

  final _remoteConfig = FirebaseRemoteConfig.instance;

  Future<void> initialize() async {
    // 立即同步设置默认值
    await _remoteConfig.setDefaults(_defaults);
    
    try {
      // 异步执行远程获取，不阻塞
      _realInit();
    } catch (e) {
      _log.warning("RemoteConfig setup triggered error: $e");
    }
  }

  // 真正的初始化逻辑
  Future<void> _realInit() async {
    await _remoteConfig.setConfigSettings(
      RemoteConfigSettings(
        fetchTimeout: const Duration(seconds: 10),
        minimumFetchInterval: const Duration(hours: 1),
      ),
    );

    _remoteConfig.onConfigUpdated.listen((event) async {
      await _remoteConfig.activate();
      _log.info("remoteConfig update triggered");
    });

    await _fetchAndActivate();
  }

  _fetchAndActivate() async {
    _log.info("Firebase remoteConfig fetching...");
    try {
      bool success = await _remoteConfig.fetchAndActivate();
      _log.info("Firebase remoteConfig fetching result: $success}");
    } catch (e) {
      _log.warning("Firebase remoteConfig fetching error: $e");
    }
  }
}