import 'package:flutter/material.dart';
import '../../unionflow_design_system.dart';

/// Card standardisé UnionFlow
/// 
/// Composant Card unifié avec 3 styles prédéfinis :
/// - elevated : Card avec ombre (par défaut)
/// - outlined : Card avec bordure
/// - filled : Card avec fond coloré
/// 
/// Usage:
/// ```dart
/// UFCard(
///   child: Text('Contenu'),
/// )
/// 
/// UFCard.outlined(
///   child: Text('Contenu'),
/// )
/// 
/// UFCard.filled(
///   color: ColorTokens.primary,
///   child: Text('Contenu'),
/// )
/// ```
class UFCard extends StatelessWidget {
  final Widget child;
  final EdgeInsets? padding;
  final EdgeInsets? margin;
  final VoidCallback? onTap;
  final VoidCallback? onLongPress;
  final UFCardStyle style;
  final Color? color;
  final Color? borderColor;
  final double? borderWidth;
  final double? elevation;
  final double? borderRadius;

  /// Card avec ombre (style par défaut)
  const UFCard({
    super.key,
    required this.child,
    this.padding,
    this.margin,
    this.onTap,
    this.onLongPress,
    this.color,
    this.elevation,
    this.borderRadius,
  })  : style = UFCardStyle.elevated,
        borderColor = null,
        borderWidth = null;

  /// Card avec bordure
  const UFCard.outlined({
    super.key,
    required this.child,
    this.padding,
    this.margin,
    this.onTap,
    this.onLongPress,
    this.color,
    this.borderColor,
    this.borderWidth,
    this.borderRadius,
  })  : style = UFCardStyle.outlined,
        elevation = null;

  /// Card avec fond coloré
  const UFCard.filled({
    super.key,
    required this.child,
    this.padding,
    this.margin,
    this.onTap,
    this.onLongPress,
    required this.color,
    this.borderRadius,
  })  : style = UFCardStyle.filled,
        borderColor = null,
        borderWidth = null,
        elevation = null;

  @override
  Widget build(BuildContext context) {
    final effectivePadding = padding ?? const EdgeInsets.all(SpacingTokens.cardPadding);
    final effectiveMargin = margin ?? EdgeInsets.zero;
    final effectiveBorderRadius = borderRadius ?? SpacingTokens.radiusLg;

    Widget content = Container(
      padding: effectivePadding,
      decoration: _getDecoration(effectiveBorderRadius),
      child: child,
    );

    if (onTap != null || onLongPress != null) {
      content = InkWell(
        onTap: onTap,
        onLongPress: onLongPress,
        borderRadius: BorderRadius.circular(effectiveBorderRadius),
        child: content,
      );
    }

    return Container(
      margin: effectiveMargin,
      child: content,
    );
  }

  BoxDecoration _getDecoration(double radius) {
    switch (style) {
      case UFCardStyle.elevated:
        return BoxDecoration(
          color: color ?? ColorTokens.surface,
          borderRadius: BorderRadius.circular(radius),
          boxShadow: elevation != null
              ? [
                  BoxShadow(
                    color: ColorTokens.shadow,
                    blurRadius: elevation!,
                    offset: const Offset(0, 2),
                  ),
                ]
              : ShadowTokens.sm,
        );

      case UFCardStyle.outlined:
        return BoxDecoration(
          color: color ?? ColorTokens.surface,
          borderRadius: BorderRadius.circular(radius),
          border: Border.all(
            color: borderColor ?? ColorTokens.outline,
            width: borderWidth ?? 1.0,
          ),
        );

      case UFCardStyle.filled:
        return BoxDecoration(
          color: color ?? ColorTokens.surfaceContainer,
          borderRadius: BorderRadius.circular(radius),
        );
    }
  }
}

/// Styles de Card disponibles
enum UFCardStyle {
  /// Card avec ombre
  elevated,
  
  /// Card avec bordure
  outlined,
  
  /// Card avec fond coloré
  filled,
}