import 'app_market.dart';
import 'app_upgrade_method.dart';

/// App升级信息模型
class UpgradeInfo {
  /// 是否有新版本
  final bool hasUpdate;

  /// 是否强制更新
  final bool isForceUpdate;

  /// 版本号
  final int versionBuildNumber;

  /// 版本名称
  final String versionName;

  /// 当前版本号
  final int currentBuildNumber;

  /// 当前版本名称
  final String currentVersionName;

  /// 更新说明
  final String updateContent;

  /// 下载地址（Android APK地址）
  final String? downloadUrl;

  /// App Store地址（iOS）
  final String? appStoreUrl;

  /// APK文件大小（字节）
  final int? apkSize;

  /// APK MD5值（用于校验）
  final String? apkMd5;

  /// 应用商店白名单（用于Android多渠道更新）
  /// 配置后，只允许跳转到白名单中且设备已安装的应用市场
  /// 如果设备上没有白名单中的任何应用市场，将提示用户选择其他更新方式
  final List<AppMarket>? appMarkets;

  /// 支持的更新方式
  final List<AppUpgradeMethod> supportedMethods;

  UpgradeInfo({
    this.hasUpdate = false,
    required this.isForceUpdate,
    required this.versionBuildNumber,
    required this.versionName,
    required this.updateContent,
    required this.currentBuildNumber,
    required this.currentVersionName,
    this.downloadUrl,
    this.appStoreUrl,
    this.apkSize,
    this.apkMd5,
    this.appMarkets,
    this.supportedMethods = const [AppUpgradeMethod.market, AppUpgradeMethod.browser, AppUpgradeMethod.inApp],
  });

  /// 从JSON创建
  /// [currentBuildNumber] 当前版本号
  /// [currentVersion] 当前版本名称
  factory UpgradeInfo.fromJson(
    Map<String, dynamic> json, {
    required int currentBuildNumber,
    required String currentVersionName,
  }) {
    final versionBuildNumber = json['versionBuildNumber'];
    final versionName = json['versionName'];

    // 解析 supportedMethods
    List<AppUpgradeMethod> supportedMethods;
    if (json['supportedMethods'] != null) {
      supportedMethods = (json['supportedMethods'] as List).map((e) {
        // 这里假设JSON中传的是索引或字符串，简单起见，如果是内部使用，通常不会有这个字段
        // 除非是从 AppUpgradeVersion 传过来。
        // 如果是原生传过来的，我们需要约定格式。
        // 暂时默认为全支持，或者如果提供了就解析。
        // 简单处理：如果是字符串列表
        if (e is String) {
          switch (e) {
            case 'market':
              return AppUpgradeMethod.market;
            case 'browser':
              return AppUpgradeMethod.browser;
            case 'inApp':
              return AppUpgradeMethod.inApp;
            default:
              return AppUpgradeMethod.inApp;
          }
        }
        // 如果是索引
        if (e is int && e >= 0 && e < AppUpgradeMethod.values.length) {
          return AppUpgradeMethod.values[e];
        }
        return AppUpgradeMethod.inApp;
      }).toList();
    } else {
      supportedMethods = [AppUpgradeMethod.market, AppUpgradeMethod.browser, AppUpgradeMethod.inApp];
    }

    return UpgradeInfo(
      hasUpdate: versionBuildNumber != currentBuildNumber || versionName != currentVersionName,
      isForceUpdate: json['isForceUpdate'] ?? false,
      versionBuildNumber: versionBuildNumber,
      versionName: versionName,
      currentBuildNumber: currentBuildNumber,
      currentVersionName: currentVersionName,
      updateContent: json['updateContent'] ?? '',
      downloadUrl: json['downloadUrl'] as String?,
      appStoreUrl: json['appStoreUrl'] as String?,
      apkSize: json['apkSize'] as int?,
      apkMd5: json['apkMd5'] as String?,
      appMarkets: (json['appMarkets'] as List<dynamic>?)?.map((e) => AppMarket.fromString(e as String)).toList(),
      supportedMethods: supportedMethods,
    );
  }

  Map<String, dynamic> toJson() {
    return {
      'hasUpdate': hasUpdate,
      'isForceUpdate': isForceUpdate,
      'versionBuildNumber': versionBuildNumber,
      'versionName': versionName,
      'updateContent': updateContent,
      'currentBuildNumber': currentBuildNumber,
      'currentVersionName': currentVersionName,
      'downloadUrl': downloadUrl,
      'appStoreUrl': appStoreUrl,
      'apkSize': apkSize,
      'apkMd5': apkMd5,
      'appMarkets': appMarkets?.map((e) => e.name).toList(),
      'supportedMethods': supportedMethods.map((e) => e.name).toList(),
    };
  }

  @override
  String toString() {
    return 'UpgradeInfo(hasUpdate: $hasUpdate, isForceUpdate: $isForceUpdate, versionBuildNumber: $versionBuildNumber, versionName: $versionName, currentBuildNumber: $currentBuildNumber, currentVersionName: $currentVersionName, updateContent: $updateContent, appStoreUrl: $appStoreUrl, apkSize: $apkSize, apkMd5: $apkMd5, appMarkets: $appMarkets, supportedMethods: $supportedMethods)';
  }
}

/// 下载进度信息
class DownloadProgress {
  /// 已下载字节数
  final int received;

  /// 总字节数
  final int total;

  /// 下载进度（0.0 - 1.0）
  double get progress => total > 0 ? received / total : 0.0;

  /// 进度百分比（0 - 100）
  int get percentage => (progress * 100).toInt();

  DownloadProgress({required this.received, required this.total});
}