import 'package:app_upgrade_plugin/app_upgrade_plugin.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'App Upgrade Plugin Enhanced Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'App升级插件完整示例'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String _status = '准备就绪';
  bool _isLoading = false;

  @override
  void initState() {
    super.initState();
    _initializePlugin();
  }

  /// 初始化插件
  void _initializePlugin() {
    // 配置插件
    AppUpgradeSimple.instance.configure(const UpgradeConfig(
      enableDebugLog: true,
      installTimeout: 60,
      customToast: null, // 使用默认Toast
    ));
  }

  /// 基础检查更新
  Future<void> _checkUpdate() async {
    setState(() {
      _isLoading = true;
      _status = '检查更新中...';
    });

    try {
      await AppUpgradeSimple.instance.checkUpdate(
        context: context,
        url: 'https://api.example.com/check-update',
        params: {
          'platform': 'android',
          'channel': 'official',
        },
        onComplete: () {
          setState(() {
            _isLoading = false;
            _status = '检查完成';
          });
        },
      );
    } catch (e) {
      setState(() {
        _isLoading = false;
        _status = '检查失败: $e';
      });
    }
  }

  /// 自动更新
  Future<void> _autoUpdate() async {
    setState(() {
      _isLoading = true;
      _status = '自动更新中...';
    });

    try {
      await AppUpgradeSimple.instance.checkUpdate(
        context: context,
        url: 'https://api.example.com/check-update',
        config: UpgradeConfig.auto,
        onComplete: () {
          setState(() {
            _isLoading = false;
            _status = '自动更新完成';
          });
        },
      );
    } catch (e) {
      setState(() {
        _isLoading = false;
        _status = '自动更新失败: $e';
      });
    }
  }

  /// 静默检查
  Future<void> _silentCheck() async {
    setState(() {
      _isLoading = true;
      _status = '静默检查中...';
    });

    final info = await AppUpgradeSimple.instance.checkUpdateSilent(
      url: 'https://api.example.com/check-update',
    );

    setState(() {
      _isLoading = false;
      if (info != null && info.hasUpdate) {
        _status = '发现新版本: ${info.versionName}';
      } else {
        _status = '已是最新版本';
      }
    });
  }

  /// 清理缓存
  Future<void> _clearCache() async {
    setState(() {
      _isLoading = true;
      _status = '清理缓存中...';
    });

    await AppUpgradeSimple.instance.clearDownloadCache();

    setState(() {
      _isLoading = false;
      _status = '缓存清理完成';
    });
  }

  /// 检查网络状态
  Future<void> _checkNetwork() async {
    setState(() {
      _isLoading = true;
      _status = '检查网络中...';
    });

    final hasNetwork = await AppUpgradeSimple.instance.checkNetworkStatus();

    setState(() {
      _isLoading = false;
      _status = hasNetwork ? '网络连接正常' : '网络连接异常';
    });
  }

  /// 获取应用信息
  Future<void> _getAppInfo() async {
    setState(() {
      _isLoading = true;
      _status = '获取应用信息中...';
    });

    final appInfo = await AppUpgradeSimple.instance.getAppInfo();

    setState(() {
      _isLoading = false;
      _status = '应用信息: ${appInfo['appName']} v${appInfo['version']}';
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
        elevation: 2,
      ),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            // 状态显示卡片
            Card(
              child: Padding(
                padding: const EdgeInsets.all(16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text(
                      '当前状态',
                      style: Theme.of(context).textTheme.titleMedium,
                    ),
                    const SizedBox(height: 8),
                    Row(
                      children: [
                        if (_isLoading)
                          const SizedBox(
                            width: 16,
                            height: 16,
                            child: CircularProgressIndicator(strokeWidth: 2),
                          ),
                        if (_isLoading) const SizedBox(width: 8),
                        Expanded(
                          child: Text(
                            _status,
                            style: Theme.of(context).textTheme.bodyMedium,
                          ),
                        ),
                      ],
                    ),
                  ],
                ),
              ),
            ),
            const SizedBox(height: 20),

            // 基础功能
            Text(
              '基础功能',
              style: Theme.of(context).textTheme.titleLarge,
            ),
            const SizedBox(height: 12),
            ElevatedButton.icon(
              onPressed: _isLoading ? null : _checkUpdate,
              icon: const Icon(Icons.system_update),
              label: const Text('检查更新'),
            ),
            const SizedBox(height: 8),
            ElevatedButton.icon(
              onPressed: _isLoading ? null : _autoUpdate,
              icon: const Icon(Icons.auto_awesome),
              label: const Text('自动更新'),
            ),
            const SizedBox(height: 8),
            ElevatedButton.icon(
              onPressed: _isLoading ? null : _silentCheck,
              icon: const Icon(Icons.visibility_off),
              label: const Text('静默检查'),
            ),
            const SizedBox(height: 20),

            // 工具功能
            Text(
              '工具功能',
              style: Theme.of(context).textTheme.titleLarge,
            ),
            const SizedBox(height: 12),
            ElevatedButton.icon(
              onPressed: _isLoading ? null : _checkNetwork,
              icon: const Icon(Icons.wifi),
              label: const Text('检查网络'),
            ),
            const SizedBox(height: 8),
            ElevatedButton.icon(
              onPressed: _isLoading ? null : _getAppInfo,
              icon: const Icon(Icons.info),
              label: const Text('应用信息'),
            ),
            const SizedBox(height: 8),
            ElevatedButton.icon(
              onPressed: _isLoading ? null : _clearCache,
              icon: const Icon(Icons.cleaning_services),
              label: const Text('清理缓存'),
            ),
            const SizedBox(height: 20),

            // 配置示例
            Text(
              '配置示例',
              style: Theme.of(context).textTheme.titleLarge,
            ),
            const SizedBox(height: 12),
            ElevatedButton.icon(
              onPressed: _isLoading
                  ? null
                  : () {
                      AppUpgradeSimple.instance.enableAutoUpdate();
                      ScaffoldMessenger.of(context).showSnackBar(
                        const SnackBar(content: Text('已启用自动更新模式')),
                      );
                    },
              icon: const Icon(Icons.auto_mode),
              label: const Text('启用自动更新'),
            ),
            const SizedBox(height: 8),
            ElevatedButton.icon(
              onPressed: _isLoading
                  ? null
                  : () {
                      AppUpgradeSimple.instance.enableSilentCheck();
                      ScaffoldMessenger.of(context).showSnackBar(
                        const SnackBar(content: Text('已启用静默检查模式')),
                      );
                    },
              icon: const Icon(Icons.volume_off),
              label: const Text('启用静默模式'),
            ),
            const SizedBox(height: 8),
            ElevatedButton.icon(
              onPressed: _isLoading
                  ? null
                  : () {
                      AppUpgradeSimple.instance.configure(UpgradeConfig(
                        autoDownload: true,
                        autoInstall: false,
                        installTimeout: 60,
                        requireInstallPermission: false, // 不需要权限
                        customToast: (message) {
                          ScaffoldMessenger.of(context).showSnackBar(
                            SnackBar(
                              content: Text(message),
                              backgroundColor: Colors.deepPurple,
                            ),
                          );
                        },
                      ));
                      ScaffoldMessenger.of(context).showSnackBar(
                        const SnackBar(content: Text('已配置自定义设置（无权限模式）')),
                      );
                    },
              icon: const Icon(Icons.settings),
              label: const Text('自定义配置'),
            ),
            const SizedBox(height: 8),
            ElevatedButton.icon(
              onPressed: _isLoading
                  ? null
                  : () {
                      AppUpgradeSimple.instance.configure(UpgradeConfig.withPermission);
                      ScaffoldMessenger.of(context).showSnackBar(
                        const SnackBar(content: Text('已启用权限模式')),
                      );
                    },
              icon: const Icon(Icons.security),
              label: const Text('启用权限模式'),
            ),
          ],
        ),
      ),
    );
  }
}