import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import '../../../data/models/channel_app_model.dart';
import '../../../data/services/version_update_service.dart';

/// 版本更新提示对话框 - 禁止外部关闭
class VersionUpdateDialog extends StatelessWidget {
  final VersionUpdateInfo updateInfo;
  final VoidCallback? onCancel;
  final VoidCallback? onUpdate;

  const VersionUpdateDialog({
    super.key,
    required this.updateInfo,
    this.onCancel,
    this.onUpdate,
  });

  @override
  Widget build(BuildContext context) {
    final isDarkMode = Theme.of(context).brightness == Brightness.dark;

    // 在强制更新时添加拦截层
    Widget dialogContent = _buildDialogContent(isDarkMode);
    //if (updateInfo.updateType == UpdateType.force) {
    return PopScope(
      canPop: false, // 完全禁用返回键关闭
      child: dialogContent,
    );
    //}

    //return dialogContent;
  }

  /// 构建对话框内容
  Widget _buildDialogContent(bool isDarkMode) {
    return Dialog(
      // 关键修改：禁用外部点击关闭
      //barrierDismissible: false,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(16.r),
      ),
      child: Container(
        width: 320.w,
        padding: EdgeInsets.all(24.w),
        decoration: BoxDecoration(
          color: isDarkMode ? Colors.grey[900] : Colors.white,
          borderRadius: BorderRadius.circular(16.r),
        ),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            // 标题图标
            Container(
              width: 64.w,
              height: 64.w,
              decoration: BoxDecoration(
                color: Colors.blue.withOpacity(0.1),
                borderRadius: BorderRadius.circular(32.r),
              ),
              child: Icon(
                Icons.system_update,
                size: 32.sp,
                color: Colors.blue,
              ),
            ),

            SizedBox(height: 16.h),

            // 标题
            Text(
              'newVersionFound'.tr, // 发现新版本
              style: TextStyle(
                fontSize: 20.sp,
                fontWeight: FontWeight.bold,
                color: isDarkMode ? Colors.white : Colors.black87,
              ),
            ),

            SizedBox(height: 8.h),

            // 版本信息
            Text(
              '${updateInfo.currentVersion} → ${updateInfo.latestVersion}',
              style: TextStyle(
                fontSize: 14.sp,
                color: isDarkMode ? Colors.grey[400] : Colors.grey[600],
              ),
            ),

            SizedBox(height: 16.h),

            // 更新描述
            if (updateInfo.appInfo?.description.isNotEmpty == true) ...[
              Container(
                width: double.infinity,
                padding: EdgeInsets.all(12.w),
                decoration: BoxDecoration(
                  color: isDarkMode ? Colors.grey[800] : Colors.grey[100],
                  borderRadius: BorderRadius.circular(8.r),
                ),
                child: Text(
                  updateInfo.appInfo!.description,
                  style: TextStyle(
                    fontSize: 14.sp,
                    color: isDarkMode ? Colors.grey[300] : Colors.grey[700],
                    height: 1.4,
                  ),
                ),
              ),
              SizedBox(height: 20.h),
            ],

            // 按钮区域
            Row(
              children: [
                // 取消按钮（仅在非强制更新时显示）
                if (updateInfo.updateType != UpdateType.force) ...[
                  Expanded(
                    child: TextButton(
                      onPressed: () {
                        Get.back();
                        onCancel?.call();
                      },
                      style: TextButton.styleFrom(
                        padding: EdgeInsets.symmetric(vertical: 12.h),
                        shape: RoundedRectangleBorder(
                          borderRadius: BorderRadius.circular(8.r),
                          side: BorderSide(
                            color: isDarkMode
                                ? Colors.grey[600]!
                                : Colors.grey[300]!,
                          ),
                        ),
                      ),
                      child: Text(
                        'remindLater'.tr, // 稍后提醒
                        style: TextStyle(
                          fontSize: 16.sp,
                          color:
                              isDarkMode ? Colors.grey[400] : Colors.grey[600],
                        ),
                      ),
                    ),
                  ),
                  SizedBox(width: 12.w),
                ],

                // 更新按钮
                Expanded(
                  child: ElevatedButton(
                    onPressed: () async {
                      //Get.back();//点击更新之后，弹窗不关闭，增强强制更新的有效性
                      await _handleUpdate();
                      onUpdate?.call();
                    },
                    style: ElevatedButton.styleFrom(
                      backgroundColor: Colors.blue,
                      foregroundColor: Colors.white,
                      padding: EdgeInsets.symmetric(vertical: 12.h),
                      shape: RoundedRectangleBorder(
                        borderRadius: BorderRadius.circular(8.r),
                      ),
                      elevation: 0,
                    ),
                    child: Text(
                      _getUpdateButtonText(),
                      style: TextStyle(
                        fontSize: 16.sp,
                        fontWeight: FontWeight.w600,
                      ),
                    ),
                  ),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }

  /// 获取更新按钮文本
  String _getUpdateButtonText() {
    switch (updateInfo.updateType) {
      case UpdateType.force:
        return 'updateNow'.tr; // 立即更新
      case UpdateType.optional:
        return 'updateNow'.tr; // 立即更新
      default:
        return 'checkUpdate'.tr; // 检查更新
    }
  }

  /// 处理更新操作
  Future<void> _handleUpdate() async {
    try {
      // 显示加载提示
      Get.dialog(
        const Center(
          child: CircularProgressIndicator(),
        ),
        barrierDismissible: false,
      );

      final versionService = VersionUpdateService.to;
      final success = await versionService.performUpdate(updateInfo);

      // 关闭加载提示
      Get.back();

      if (!success) {
        Get.snackbar(
          'updateFailed'.tr, // 更新失败
          'cannotOpenAppStore'.tr, // 无法打开应用商店，请手动前往应用商店更新
          snackPosition: SnackPosition.TOP,
          backgroundColor: Colors.red.withOpacity(0.8),
          colorText: Colors.white,
        );
      }
    } catch (e) {
      // 关闭加载提示
      if (Get.isDialogOpen == true) {
        Get.back();
      }

      Get.snackbar(
        'updateFailed'.tr, // 更新失败
        'updateErrorRetry'.tr, // 更新过程中发生错误，请稍后重试
        snackPosition: SnackPosition.TOP,
        backgroundColor: Colors.red.withOpacity(0.8),
        colorText: Colors.white,
      );
    }
  }

  /// 显示版本更新对话框
  static Future<void> show(VersionUpdateInfo updateInfo) async {
    await Get.dialog(
      VersionUpdateDialog(updateInfo: updateInfo),
      // 关键修改：禁用外部点击关闭
      barrierDismissible: false,
      // 防止返回键关闭（在强制更新模式下）
      //useRootNavigator: true,
    );
  }
}