import 'package:flutter/material.dart';

/// 위험한 액션에 사용되는 Danger 버튼
/// 삭제, 취소, 종료 등의 위험한 액션에 사용됩니다.
class DangerButton extends StatefulWidget {
  final String text;
  final VoidCallback? onPressed;
  final bool requireConfirmation;
  final String? confirmationTitle;
  final String? confirmationMessage;
  final IconData? icon;
  final double? width;
  final double height;
  final double fontSize;
  final EdgeInsetsGeometry? padding;
  final double borderRadius;
  final bool enableHoverEffect;

  const DangerButton({
    super.key,
    required this.text,
    this.onPressed,
    this.requireConfirmation = false,
    this.confirmationTitle,
    this.confirmationMessage,
    this.icon,
    this.width,
    this.height = 60,
    this.fontSize = 18,
    this.padding,
    this.borderRadius = 16,
    this.enableHoverEffect = true,
  });

  @override
  State<DangerButton> createState() => _DangerButtonState();
}

class _DangerButtonState extends State<DangerButton> {
  bool _isHovered = false;
  
  static const Color _dangerColor = Color(0xFFDC2626);

  Future<void> _handlePress() async {
    if (widget.requireConfirmation) {
      final confirmed = await showDialog<bool>(
        context: context,
        builder: (context) => AlertDialog(
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(20),
          ),
          title: Text(
            widget.confirmationTitle ?? widget.text,
            style: const TextStyle(
              fontWeight: FontWeight.bold,
              fontSize: 20,
            ),
          ),
          content: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              Container(
                padding: const EdgeInsets.all(16),
                decoration: BoxDecoration(
                  color: _dangerColor.withOpacity(0.1),
                  borderRadius: BorderRadius.circular(12),
                ),
                child: Icon(
                  widget.icon ?? Icons.warning_amber_rounded,
                  color: _dangerColor,
                  size: 48,
                ),
              ),
              const SizedBox(height: 16),
              Text(
                widget.confirmationMessage ?? 
                '이 작업은 되돌릴 수 없습니다.\n계속하시겠습니까?',
                textAlign: TextAlign.center,
                style: const TextStyle(
                  fontSize: 16,
                  height: 1.5,
                ),
              ),
            ],
          ),
          actions: [
            TextButton(
              onPressed: () => Navigator.of(context).pop(false),
              child: const Text('취소'),
            ),
            ElevatedButton(
              onPressed: () => Navigator.of(context).pop(true),
              style: ElevatedButton.styleFrom(
                backgroundColor: _dangerColor,
                shape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(12),
                ),
              ),
              child: Text(
                widget.text,
                style: const TextStyle(color: Colors.white),
              ),
            ),
          ],
        ),
      );

      if (confirmed == true) {
        widget.onPressed?.call();
      }
    } else {
      widget.onPressed?.call();
    }
  }

  @override
  Widget build(BuildContext context) {
    Widget button = AnimatedContainer(
      duration: const Duration(milliseconds: 200),
      width: widget.width ?? double.infinity,
      height: widget.height,
      transform: widget.enableHoverEffect && _isHovered
          ? (Matrix4.identity()..scale(1.02))
          : Matrix4.identity(),
      child: ElevatedButton(
        onPressed: widget.onPressed != null ? _handlePress : null,
        style: ElevatedButton.styleFrom(
          backgroundColor: _dangerColor,
          foregroundColor: Colors.white,
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(widget.borderRadius),
          ),
          padding: widget.padding ?? const EdgeInsets.symmetric(vertical: 16),
          elevation: widget.enableHoverEffect && _isHovered ? 8 : 4,
          shadowColor: _dangerColor.withOpacity(0.5),
          disabledBackgroundColor: _dangerColor.withOpacity(0.6),
        ),
        child: Row(
          mainAxisAlignment: MainAxisAlignment.center,
          mainAxisSize: MainAxisSize.min,
          children: [
            if (widget.icon != null) ...[
              Icon(
                widget.icon,
                color: Colors.white,
                size: _isHovered ? 24 : 20,
              ),
              const SizedBox(width: 8),
            ],
            Text(
              widget.text,
              style: TextStyle(
                fontSize: widget.fontSize,
                fontWeight: FontWeight.w600,
                color: Colors.white,
              ),
            ),
          ],
        ),
      ),
    );

    if (widget.enableHoverEffect) {
      return MouseRegion(
        onEnter: (_) => setState(() => _isHovered = true),
        onExit: (_) => setState(() => _isHovered = false),
        child: button,
      );
    }

    return button;
  }
}