import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:sunny_mochi/core/error/exception_mapper.dart';
import 'package:sunny_mochi/core/widgets/app_toast.dart';
import 'package:sunny_mochi/features/error_report/data/error_logger.dart';

extension BuildContextX on BuildContext {
  /// 弹一个 Toast 风格的 SnackBar（对应 iOS Mkt.makeToast(...)）。
  void showToast(
    String message, {
    ToastType type = ToastType.info,
    Duration duration = const Duration(seconds: 4),
  }) => AppToast.show(this, message, type: type, duration: duration);

  /// 异常 → ExceptionMapper.fromUnknown(e, st) → toast(Failure.message)。
  ///
  /// 兜底替代散落的 `on Object catch (e, st) { mapper.fromUnknown; if(mounted) showToast }`
  /// 模板（5+ 处 mine 表单提交流程）。
  void showError(WidgetRef ref, Object error, StackTrace stackTrace) {
    final failure =
        ref.read(exceptionMapperProvider).fromUnknown(error, stackTrace);
    // 写入本地错误日志（fire-and-forget，不阻塞 UI）
    unawaited(ref.read(errorLoggerProvider).log(failure));
    if (mounted) showToast(failure.userMessage, type: ToastType.error);
  }

  /// 当前 Theme 快捷读取。
  ThemeData get theme => Theme.of(this);
  ColorScheme get colors => theme.colorScheme;
  TextTheme get textTheme => theme.textTheme;

  /// 屏幕信息快捷读取。
  Size get screenSize => MediaQuery.sizeOf(this);
  EdgeInsets get screenPadding => MediaQuery.paddingOf(this);
  double get screenWidth => screenSize.width;
  double get screenHeight => screenSize.height;
}