import 'package:flutter/material.dart';
import '../../core/theme/app_spacing.dart';
import '../../core/theme/app_theme_extension.dart';

/// GlassPanel - 實心背景面板
///
/// Material Design 3 風格的實心背景容器
/// 用於卡片、彈窗、底部抽屜等需要清晰背景的容器
///
/// 示例:
/// ```dart
/// GlassPanel(
///   child: Text('內容'),
/// )
/// ```
class GlassPanel extends StatelessWidget {
  /// 子組件
  final Widget child;

  /// 背景色，默認使用 surfaceContainer
  final Color? backgroundColor;

  /// 邊框色
  final Color? borderColor;

  /// 圓角，默認特大圓角
  final BorderRadius? borderRadius;

  /// 內邊距
  final EdgeInsetsGeometry? padding;

  /// 外邊距
  final EdgeInsetsGeometry? margin;

  /// 寬度
  final double? width;

  /// 高度
  final double? height;

  /// 是否顯示邊框
  final bool showBorder;

  const GlassPanel({
    super.key,
    required this.child,
    this.backgroundColor,
    this.borderColor,
    this.borderRadius,
    this.padding,
    this.margin,
    this.width,
    this.height,
    this.showBorder = true,
  });

  @override
  Widget build(BuildContext context) {
    final bgColor = backgroundColor ?? context.appColors.surfaceCard;
    final brColor = borderColor ?? context.appColors.ghostBorder;
    final br = borderRadius ?? BorderRadius.circular(AppRadius.xl);

    Widget content = Container(
      width: width,
      height: height,
      padding: padding ?? EdgeInsets.all(AppSpacing.md),
      decoration: BoxDecoration(
        color: bgColor,
        borderRadius: br,
        border: showBorder
            ? Border.all(
                color: brColor,
                width: 1,
              )
            : null,
      ),
      child: child,
    );

    if (margin != null) {
      content = Padding(
        padding: margin!,
        child: content,
      );
    }

    return content;
  }
}

/// GlassCard - 帶實心背景的卡片
///
/// 用於列表項、信息展示等場景
/// 預設了常用配置，簡化使用
class GlassCard extends StatelessWidget {
  /// 子組件
  final Widget child;

  /// 點擊回調
  final VoidCallback? onTap;

  /// 長按回調
  final VoidCallback? onLongPress;

  /// 內邊距
  final EdgeInsetsGeometry? padding;

  /// 外邊距
  final EdgeInsetsGeometry? margin;

  /// 圓角
  final BorderRadius? borderRadius;

  /// 是否顯示霓虹光效
  final bool showNeonGlow;

  /// 霓虹光效顏色
  final Color? neonGlowColor;

  const GlassCard({
    super.key,
    required this.child,
    this.onTap,
    this.onLongPress,
    this.padding,
    this.margin,
    this.borderRadius,
    this.showNeonGlow = false,
    this.neonGlowColor,
  });

  @override
  Widget build(BuildContext context) {
    final br = borderRadius ?? BorderRadius.circular(AppRadius.xl);
    final glowColor = neonGlowColor ??
        context.colors.primary.withValues(alpha: context.appColors.glowOpacity);

    Widget card = GlassPanel(
      padding: padding ?? EdgeInsets.all(AppSpacing.md),
      margin: margin,
      borderRadius: br,
      child: child,
    );

    if (showNeonGlow) {
      card = Container(
        decoration: BoxDecoration(
          borderRadius: br,
          boxShadow: [
            BoxShadow(
              color: glowColor,
              blurRadius: 15,
              spreadRadius: 0,
            ),
          ],
        ),
        child: card,
      );
    }

    if (onTap != null || onLongPress != null) {
      return GestureDetector(
        onTap: onTap,
        onLongPress: onLongPress,
        child: card,
      );
    }

    return card;
  }
}

/// GlassBottomSheet - 實心背景底部抽屜
///
/// 用於彈出的底部面板
class GlassBottomSheet extends StatelessWidget {
  /// 子組件
  final Widget child;

  /// 標題
  final String? title;

  /// 是否顯示關閉按鈕
  final bool showCloseButton;

  /// 內邊距
  final EdgeInsetsGeometry? padding;

  const GlassBottomSheet({
    super.key,
    required this.child,
    this.title,
    this.showCloseButton = true,
    this.padding,
  });

  @override
  Widget build(BuildContext context) {
    return Container(
      decoration: BoxDecoration(
        color: context.appColors.surfaceCard,
        borderRadius: const BorderRadius.vertical(
          top: Radius.circular(AppRadius.xxl),
        ),
        border: Border.all(
          color: context.appColors.ghostBorder,
        ),
      ),
      child: Column(
        mainAxisSize: MainAxisSize.min,
        children: [
          // 頂部拖動條
          Container(
            margin: const EdgeInsets.only(top: 12, bottom: 8),
            width: 40,
            height: 4,
            decoration: BoxDecoration(
              color: context.colors.outlineVariant.withValues(alpha: 0.5),
              borderRadius: BorderRadius.circular(2),
            ),
          ),
          // 標題欄
          if (title != null || showCloseButton)
            Padding(
              padding: EdgeInsets.fromLTRB(
                AppSpacing.lg,
                AppSpacing.sm,
                AppSpacing.sm,
                AppSpacing.md,
              ),
              child: Row(
                children: [
                  if (title != null)
                    Expanded(
                      child: Text(
                        title!,
                        style: TextStyle(
                          fontSize: 18,
                          fontWeight: FontWeight.bold,
                          color: context.colors.onSurface,
                        ),
                      ),
                    ),
                  if (showCloseButton)
                    GestureDetector(
                      onTap: () => Navigator.of(context).pop(),
                      child: Container(
                        padding: EdgeInsets.all(AppSpacing.sm),
                        decoration: BoxDecoration(
                          color: context.colors.outlineVariant
                              .withOpacity(0.2),
                          shape: BoxShape.circle,
                        ),
                        child: Icon(
                          Icons.close,
                          size: 18,
                          color: context.colors.onSurfaceVariant,
                        ),
                      ),
                    ),
                ],
              ),
            ),
          // 內容
          Padding(
            padding: padding ??
                EdgeInsets.fromLTRB(
                  AppSpacing.lg,
                  0,
                  AppSpacing.lg,
                  AppSpacing.xl,
                ),
            child: child,
          ),
        ],
      ),
    );
  }

  /// 顯示底部抽屜
  static Future<T?> show<T>({
    required BuildContext context,
    required Widget Function(BuildContext) builder,
    bool isScrollControlled = false,
    bool isDismissible = true,
    bool enableDrag = true,
  }) {
    return showModalBottomSheet<T>(
      context: context,
      isScrollControlled: isScrollControlled,
      isDismissible: isDismissible,
      enableDrag: enableDrag,
      backgroundColor: Colors.transparent,
      builder: builder,
    );
  }
}