worker/lib/shared/widgets/gradient_card.dart

/// Gradient Card Widget
///
/// Reusable card with gradient background used for member cards
/// and other gradient-based UI elements.
library;

import 'package:flutter/material.dart';
import '../../core/constants/ui_constants.dart';

/// Card with gradient background
class GradientCard extends StatelessWidget {
  final Widget child;
  final Gradient gradient;
  final double borderRadius;
  final double elevation;
  final EdgeInsets padding;
  final double? width;
  final double? height;
  final VoidCallback? onTap;
  final List<BoxShadow>? shadows;

  const GradientCard({
    super.key,
    required this.child,
    required this.gradient,
    this.borderRadius = AppRadius.card,
    this.elevation = AppElevation.card,
    this.padding = const EdgeInsets.all(AppSpacing.md),
    this.width,
    this.height,
    this.onTap,
    this.shadows,
  });

  @override
  Widget build(BuildContext context) {
    final cardContent = Container(
      width: width,
      height: height,
      padding: padding,
      decoration: BoxDecoration(
        gradient: gradient,
        borderRadius: BorderRadius.circular(borderRadius),
        boxShadow:
            shadows ??
            [
              BoxShadow(
                color: Colors.black.withOpacity(0.1 * (elevation / 4)),
                blurRadius: elevation,
                offset: Offset(0, elevation / 2),
              ),
            ],
      ),
      child: child,
    );

    if (onTap != null) {
      return InkWell(
        onTap: onTap,
        borderRadius: BorderRadius.circular(borderRadius),
        child: cardContent,
      );
    }

    return cardContent;
  }
}

/// Diamond tier gradient card
class DiamondGradientCard extends StatelessWidget {
  final Widget child;
  final double borderRadius;
  final double elevation;
  final EdgeInsets padding;
  final double? width;
  final double? height;
  final VoidCallback? onTap;

  const DiamondGradientCard({
    super.key,
    required this.child,
    this.borderRadius = MemberCardSpecs.borderRadius,
    this.elevation = MemberCardSpecs.elevation,
    this.padding = MemberCardSpecs.padding,
    this.width = MemberCardSpecs.width,
    this.height = MemberCardSpecs.height,
    this.onTap,
  });

  @override
  Widget build(BuildContext context) {
    return GradientCard(
      gradient: const LinearGradient(
        colors: [Color(0xFF4A00E0), Color(0xFF8E2DE2)],
        begin: Alignment.topLeft,
        end: Alignment.bottomRight,
      ),
      borderRadius: borderRadius,
      elevation: elevation,
      padding: padding,
      width: width,
      height: height,
      onTap: onTap,
      child: child,
    );
  }
}

/// Platinum tier gradient card
class PlatinumGradientCard extends StatelessWidget {
  final Widget child;
  final double borderRadius;
  final double elevation;
  final EdgeInsets padding;
  final double? width;
  final double? height;
  final VoidCallback? onTap;

  const PlatinumGradientCard({
    super.key,
    required this.child,
    this.borderRadius = MemberCardSpecs.borderRadius,
    this.elevation = MemberCardSpecs.elevation,
    this.padding = MemberCardSpecs.padding,
    this.width = MemberCardSpecs.width,
    this.height = MemberCardSpecs.height,
    this.onTap,
  });

  @override
  Widget build(BuildContext context) {
    return GradientCard(
      gradient: const LinearGradient(
        colors: [Color(0xFF7F8C8D), Color(0xFFBDC3C7)],
        begin: Alignment.topLeft,
        end: Alignment.bottomRight,
      ),
      borderRadius: borderRadius,
      elevation: elevation,
      padding: padding,
      width: width,
      height: height,
      onTap: onTap,
      child: child,
    );
  }
}

/// Gold tier gradient card
class GoldGradientCard extends StatelessWidget {
  final Widget child;
  final double borderRadius;
  final double elevation;
  final EdgeInsets padding;
  final double? width;
  final double? height;
  final VoidCallback? onTap;

  const GoldGradientCard({
    super.key,
    required this.child,
    this.borderRadius = MemberCardSpecs.borderRadius,
    this.elevation = MemberCardSpecs.elevation,
    this.padding = MemberCardSpecs.padding,
    this.width = MemberCardSpecs.width,
    this.height = MemberCardSpecs.height,
    this.onTap,
  });

  @override
  Widget build(BuildContext context) {
    return GradientCard(
      gradient: const LinearGradient(
        colors: [Color(0xFFf7b733), Color(0xFFfc4a1a)],
        begin: Alignment.topLeft,
        end: Alignment.bottomRight,
      ),
      borderRadius: borderRadius,
      elevation: elevation,
      padding: padding,
      width: width,
      height: height,
      onTap: onTap,
      child: child,
    );
  }
}

/// Animated gradient card with shimmer effect
class ShimmerGradientCard extends StatefulWidget {
  final Widget child;
  final Gradient gradient;
  final double borderRadius;
  final double elevation;
  final EdgeInsets padding;
  final double? width;
  final double? height;
  final Duration shimmerDuration;

  const ShimmerGradientCard({
    super.key,
    required this.child,
    required this.gradient,
    this.borderRadius = AppRadius.card,
    this.elevation = AppElevation.card,
    this.padding = const EdgeInsets.all(AppSpacing.md),
    this.width,
    this.height,
    this.shimmerDuration = AppDuration.shimmer,
  });

  @override
  State<ShimmerGradientCard> createState() => _ShimmerGradientCardState();
}

class _ShimmerGradientCardState extends State<ShimmerGradientCard>
    with SingleTickerProviderStateMixin {
  late AnimationController _controller;

  @override
  void initState() {
    super.initState();
    _controller = AnimationController(
      vsync: this,
      duration: widget.shimmerDuration,
    )..repeat();
  }

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return AnimatedBuilder(
      animation: _controller,
      builder: (context, child) {
        return ShaderMask(
          shaderCallback: (bounds) {
            return LinearGradient(
              begin: Alignment.topLeft,
              end: Alignment.bottomRight,
              colors: [
                Colors.white.withOpacity(0.1),
                Colors.white.withOpacity(0.3),
                Colors.white.withOpacity(0.1),
              ],
              stops: [
                _controller.value - 0.3,
                _controller.value,
                _controller.value + 0.3,
              ],
            ).createShader(bounds);
          },
          blendMode: BlendMode.srcATop,
          child: GradientCard(
            gradient: widget.gradient,
            borderRadius: widget.borderRadius,
            elevation: widget.elevation,
            padding: widget.padding,
            width: widget.width,
            height: widget.height,
            child: widget.child,
          ),
        );
      },
    );
  }
}