import 'package:flutter/material.dart';

import '../../../../core/theme/app_theme_extension.dart';

/// Layout variant for dashboard quick-action cards.
enum DashboardActionCardLayout { vertical, horizontal }

/// Reusable action card with flexible height and wrapping subtitles.
class DashboardActionCard extends StatelessWidget {
  const DashboardActionCard({
    super.key,
    required this.title,
    required this.subtitle,
    required this.icon,
    required this.onTap,
    this.layout = DashboardActionCardLayout.vertical,
    this.minHeight = 150,
    this.useGradient = false,
    this.badge,
    this.iconSize = 24,
    this.iconPadding = 10,
    this.titleFontSize,
    this.subtitleFontSize,
    this.padding,
    this.leadingIcon,
    this.onTapDisabled,
  });

  final String title;
  final String subtitle;
  final IconData icon;
  final VoidCallback? onTap;
  final bool? onTapDisabled;
  final DashboardActionCardLayout layout;
  final double minHeight;
  final bool useGradient;
  final String? badge;
  final double iconSize;
  final double iconPadding;
  final double? titleFontSize;
  final double? subtitleFontSize;
  final EdgeInsetsGeometry? padding;
  final Widget? leadingIcon;

  @override
  Widget build(BuildContext context) {
    final cs = Theme.of(context).colorScheme;
    final extras = AppThemeExtras.of(context);
    final isHorizontal = layout == DashboardActionCardLayout.horizontal;
    final effectivePadding =
        padding ?? EdgeInsets.all(isHorizontal ? 16 : (useGradient ? 20 : 14));

    final decoration = BoxDecoration(
      gradient: useGradient
          ? LinearGradient(
              begin: Alignment.topLeft,
              end: Alignment.bottomRight,
              colors: [
                extras.actionCardGradientStart,
                extras.actionCardGradientEnd,
              ],
            )
          : null,
      color: useGradient ? null : cs.surface,
      borderRadius: BorderRadius.circular(minHeight <= 110 ? 12 : 16),
      border: useGradient
          ? null
          : Border.all(color: cs.outline.withOpacity(0.2), width: 1),
      boxShadow: [
        BoxShadow(
          color: (useGradient ? cs.primary : cs.shadow).withOpacity(
            useGradient ? 0.3 : 0.05,
          ),
          blurRadius: useGradient ? 15 : 10,
          offset: Offset(0, useGradient ? 8 : 4),
        ),
      ],
    );

    final titleColor = useGradient ? Colors.white : cs.onSurface;
    final subtitleColor = useGradient ? Colors.white : cs.onSurfaceVariant;
    final iconBgColor = useGradient
        ? Colors.white.withOpacity(0.2)
        : cs.primary.withOpacity(0.1);
    final iconColor = useGradient ? Colors.white : cs.primary;

    final effectiveMinHeight = minHeight > 0 ? minHeight : null;

    return ConstrainedBox(
      constraints: effectiveMinHeight != null
          ? BoxConstraints(minHeight: effectiveMinHeight)
          : const BoxConstraints(),
      child: Container(
        decoration: decoration,
        child: Material(
          color: Colors.transparent,
          child: InkWell(
            borderRadius: BorderRadius.circular(minHeight <= 110 ? 12 : 16),
            onTap: onTapDisabled == true ? null : onTap,
            child: Padding(
              padding: effectivePadding,
              child: isHorizontal
                  ? _buildHorizontalContent(
                      context,
                      titleColor,
                      subtitleColor,
                      iconBgColor,
                      iconColor,
                    )
                  : _buildVerticalContent(
                      context,
                      titleColor,
                      subtitleColor,
                      iconBgColor,
                      iconColor,
                    ),
            ),
          ),
        ),
      ),
    );
  }

  Widget _buildHorizontalContent(
    BuildContext context,
    Color titleColor,
    Color subtitleColor,
    Color iconBgColor,
    Color iconColor,
  ) {
    final cs = Theme.of(context).colorScheme;
    return Row(
      crossAxisAlignment: CrossAxisAlignment.center,
      children: [
        _iconBox(iconBgColor, iconColor),
        const SizedBox(width: 16),
        Expanded(
          child: _titleSubtitleColumn(
            titleColor,
            subtitleColor,
            titleSize: titleFontSize ?? 16,
            subtitleSize: subtitleFontSize ?? 13,
          ),
        ),
        Icon(Icons.arrow_forward_ios, color: cs.primary, size: 16),
      ],
    );
  }

  Widget _buildVerticalContent(
    BuildContext context,
    Color titleColor,
    Color subtitleColor,
    Color iconBgColor,
    Color iconColor,
  ) {
    final cs = Theme.of(context).colorScheme;
    final isCompact = minHeight <= 130;

    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      mainAxisSize: MainAxisSize.min,
      children: [
        Row(
          children: [
            leadingIcon ?? _iconBox(iconBgColor, iconColor),
            if (badge != null) ...[
              const Spacer(),
              Container(
                padding: EdgeInsets.symmetric(
                  horizontal: isCompact ? 6 : 10,
                  vertical: isCompact ? 3 : 4,
                ),
                decoration: BoxDecoration(
                  color: cs.secondary,
                  borderRadius: BorderRadius.circular(isCompact ? 10 : 12),
                ),
                child: Text(
                  badge!,
                  style: TextStyle(
                    color: Colors.white,
                    fontSize: isCompact ? 9 : 10,
                    fontWeight: FontWeight.bold,
                  ),
                ),
              ),
            ],
          ],
        ),
        SizedBox(height: isCompact ? 8 : 12),
        _titleSubtitleColumn(
          titleColor,
          subtitleColor,
          titleSize: titleFontSize ?? (useGradient ? 18 : 16),
          subtitleSize: subtitleFontSize ?? (isCompact ? 11 : 12),
        ),
      ],
    );
  }

  Widget _iconBox(Color bgColor, Color iconColor) {
    return Container(
      padding: EdgeInsets.all(iconPadding),
      decoration: BoxDecoration(
        color: bgColor,
        borderRadius: BorderRadius.circular(10),
      ),
      child: Icon(icon, color: iconColor, size: iconSize),
    );
  }

  Widget _titleSubtitleColumn(
    Color titleColor,
    Color subtitleColor, {
    required double titleSize,
    required double subtitleSize,
  }) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      mainAxisSize: MainAxisSize.min,
      children: [
        Text(
          title,
          style: TextStyle(
            color: titleColor,
            fontSize: titleSize,
            fontWeight: FontWeight.bold,
            height: 1.2,
          ),
        ),
        if (subtitle.isNotEmpty) ...[
          SizedBox(height: subtitleSize >= 13 ? 4 : 2),
          Text(
            subtitle,
            style: TextStyle(
              color: subtitleColor,
              fontSize: subtitleSize,
              height: 1.25,
            ),
          ),
        ],
      ],
    );
  }
}

/// Surface-styled vertical card (Quiz, Criar Turma, etc.).
class DashboardActionCardSurface extends StatelessWidget {
  const DashboardActionCardSurface({
    super.key,
    required this.title,
    required this.subtitle,
    required this.icon,
    required this.onTap,
    this.minHeight = 150,
    this.iconColor,
    this.leadingWidget,
    this.onTapDisabled,
    this.titleFontSize = 14,
    this.subtitleFontSize = 11,
    this.iconSize = 20,
    this.padding = const EdgeInsets.all(12),
  });

  final String title;
  final String subtitle;
  final IconData icon;
  final VoidCallback? onTap;
  final bool? onTapDisabled;
  final double minHeight;
  final Color? iconColor;
  final Widget? leadingWidget;
  final double titleFontSize;
  final double subtitleFontSize;
  final double iconSize;
  final EdgeInsetsGeometry padding;

  @override
  Widget build(BuildContext context) {
    final cs = Theme.of(context).colorScheme;
    final effectiveIconColor = iconColor ?? cs.secondary;

    return DashboardActionCard(
      title: title,
      subtitle: subtitle,
      icon: icon,
      onTap: onTap,
      onTapDisabled: onTapDisabled,
      minHeight: minHeight,
      useGradient: false,
      iconSize: iconSize,
      leadingIcon:
          leadingWidget ??
          Container(
            padding: const EdgeInsets.all(10),
            decoration: BoxDecoration(
              color: effectiveIconColor.withOpacity(0.1),
              borderRadius: BorderRadius.circular(10),
            ),
            child: Icon(icon, color: effectiveIconColor, size: iconSize),
          ),
      titleFontSize: titleFontSize,
      subtitleFontSize: subtitleFontSize,
      padding: padding,
    );
  }
}