import 'package:flutter/material.dart';

import '../../../../core/constants/app_sizes.dart';
import '../../../../core/theme/app_colors.dart';
import '../../../../core/theme/app_text_styles.dart';
import 'dialog_buttons.dart';

/// 通用确认框，返回 true 表示用户点了确认。
///
/// [danger] 为 true 时确认按钮用错误色，用在删除这类不可逆操作上。
Future<bool> showConfirmDialog({
  required BuildContext context,
  required String title,
  required String message,
  required String confirmLabel,
  String cancelLabel = '取消',
  bool danger = false,
}) async {
  final bool? confirmed = await showDialog<bool>(
    context: context,
    barrierColor: const Color(0x73111827),
    builder: (BuildContext context) => _ConfirmDialog(
      title: title,
      message: message,
      confirmLabel: confirmLabel,
      cancelLabel: cancelLabel,
      danger: danger,
    ),
  );
  return confirmed ?? false;
}

class _ConfirmDialog extends StatelessWidget {
  const _ConfirmDialog({
    required this.title,
    required this.message,
    required this.confirmLabel,
    required this.cancelLabel,
    required this.danger,
  });

  final String title;
  final String message;
  final String confirmLabel;
  final String cancelLabel;
  final bool danger;

  @override
  Widget build(BuildContext context) {
    return Dialog(
      backgroundColor: Colors.transparent,
      elevation: 0,
      insetPadding: const EdgeInsets.all(AppSizes.dialogPadding),
      child: Container(
        constraints: const BoxConstraints(maxWidth: 360),
        decoration: BoxDecoration(
          color: AppColors.surface,
          border: Border.all(color: AppColors.border),
          borderRadius: BorderRadius.circular(AppSizes.cardRadius),
          boxShadow: AppColors.cardShadowHover,
        ),
        padding: const EdgeInsets.all(AppSizes.dialogPadding),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          crossAxisAlignment: CrossAxisAlignment.start,
          children: <Widget>[
            Text(title, style: AppTextStyles.sectionTitle),
            const SizedBox(height: AppSizes.spaceSm),
            Text(message, style: AppTextStyles.emptyMessage),
            const SizedBox(height: AppSizes.spaceXl),
            Row(
              mainAxisAlignment: MainAxisAlignment.end,
              children: <Widget>[
                DialogGhostButton(
                  label: cancelLabel,
                  onTap: () => Navigator.of(context).pop(false),
                ),
                const SizedBox(width: AppSizes.spaceMd),
                DialogPrimaryButton(
                  label: confirmLabel,
                  danger: danger,
                  onTap: () => Navigator.of(context).pop(true),
                ),
              ],
            ),
          ],
        ),
      ),
    );
  }
}