import 'dart:io';

// 确保方法通道实现被导入，以便正确初始化
// ignore: unused_import
import 'app_upgrade_plugin_method_channel.dart';
import 'app_upgrade_plugin_platform_interface.dart';
import 'core/http_config.dart';
import 'models/upgrade_info.dart';

// 简化版API（推荐使用）
export 'app_upgrade_simple.dart';
// HTTP配置
export 'core/http_config.dart';
// 权限帮助类
export 'core/permission_helper.dart';
export 'models/upgrade_info.dart';
export 'widgets/widgets.dart';

class AppUpgradePlugin {
  // 单例模式，确保全局只有一个实例
  static final AppUpgradePlugin _instance = AppUpgradePlugin._internal();

  factory AppUpgradePlugin() => _instance;

  /// 全局设置：是否忽略证书验证
  /// 默认情况下，插件会根据编译模式自动决定（Debug模式忽略，Release模式验证）
  /// 设置为true将强制在所有环境下忽略证书验证
  static bool ignoreCertificate = true;

  AppUpgradePlugin._internal() {
    // 确保平台接口已正确初始化
    _ensurePlatformInitialized();

    // 根据全局设置配置HTTP
    if (ignoreCertificate) {
      configureHttp(HttpConfig.unsafe);
    }
  }

  // 确保平台接口初始化
  void _ensurePlatformInitialized() {
    // 触发平台接口的懒加载初始化
    final _ = AppUpgradePluginPlatform.instance;
  }

  /// 配置HTTP设置
  ///
  /// 示例：
  /// ```dart
  /// // 开发环境配置
  /// AppUpgradePlugin().configureHttp(HttpConfig.development);
  ///
  /// // 自定义配置
  /// AppUpgradePlugin().configureHttp(HttpConfig(
  ///   ignoreCertificate: true,
  ///   connectTimeout: 60,
  ///   defaultMethod: 'POST',
  /// ));
  /// ```
  void configureHttp(HttpConfig config) {
    AppUpgradePluginPlatform.instance.configureHttp(config);
  }

  /// 获取平台版本
  Future<String?> getPlatformVersion() {
    return AppUpgradePluginPlatform.instance.getPlatformVersion();
  }

  Future<int?> getAndroidSdkVersion() {
    return AppUpgradePluginPlatform.instance.getAndroidSdkVersion();
  }

  /// 获取当前App信息
  Future<Map<String, String>> getAppInfo() {
    return AppUpgradePluginPlatform.instance.getAppInfo();
  }

  /// 检查更新
  /// [url] 检查更新的接口地址
  /// [params] 额外的请求参数
  Future<UpgradeInfo?> checkUpdate(String url, {Map<String, dynamic>? params}) {
    return AppUpgradePluginPlatform.instance.checkUpdate(url, params: params);
  }

  /// 下载APK文件（仅Android）
  /// [url] APK下载地址
  /// [onProgress] 下载进度回调
  /// [savePath] 保存路径（可选，默认使用系统下载目录）
  Future<String?> downloadApk(String url, {Function(DownloadProgress)? onProgress, String? savePath}) {
    if (!Platform.isAndroid) {
      throw UnsupportedError('downloadApk only supports Android platform');
    }
    return AppUpgradePluginPlatform.instance.downloadApk(url, onProgress: onProgress, savePath: savePath);
  }

  /// 安装APK（仅Android）
  /// [filePath] APK文件路径
  Future<bool> installApk(String filePath) {
    if (!Platform.isAndroid) {
      return Future.value(false);
    }
    return AppUpgradePluginPlatform.instance.installApk(filePath);
  }

  /// 跳转到应用商店
  /// [url] 应用商店地址
  Future<bool> goToAppStore(String url) {
    return AppUpgradePluginPlatform.instance.goToAppStore(url);
  }

  /// 获取下载目录路径
  Future<String?> getDownloadPath() {
    return AppUpgradePluginPlatform.instance.getDownloadPath();
  }

  /// 检查是否已下载指定版本的APK
  /// [version] 版本号
  /// [md5] MD5值（可选）
  Future<bool> checkApkExists(String version, String? md5) {
    if (!Platform.isAndroid) {
      return Future.value(false);
    }
    return AppUpgradePluginPlatform.instance.checkApkExists(version, md5);
  }
}