// ==================== EMPTY WIDGET ====================
import 'package:flutter/material.dart';

import '../../../common/theme/theme.dart';

class EmptyWidget extends StatefulWidget {
  final String? title;
  final String? message;
  final VoidCallback? onRefresh;
  final IconData? emptyIcon;
  final String? buttonText;
  final double? width;
  final double? height;
  final bool showButton;
  final EdgeInsets? padding;
  final Color? iconColor;

  const EmptyWidget({
    super.key,
    this.title,
    this.message,
    this.onRefresh,
    this.emptyIcon,
    this.buttonText,
    this.width,
    this.height,
    this.showButton = true,
    this.padding,
    this.iconColor,
  });

  @override
  State<EmptyWidget> createState() => _EmptyWidgetState();
}

class _EmptyWidgetState extends State<EmptyWidget>
    with SingleTickerProviderStateMixin {
  late AnimationController _animationController;
  late Animation<double> _fadeAnimation;
  late Animation<Offset> _slideAnimation;

  @override
  void initState() {
    super.initState();
    _animationController = AnimationController(
      duration: const Duration(milliseconds: 800),
      vsync: this,
    );

    _fadeAnimation = Tween<double>(begin: 0.0, end: 1.0).animate(
      CurvedAnimation(parent: _animationController, curve: Curves.easeInOut),
    );

    _slideAnimation =
        Tween<Offset>(begin: const Offset(0.0, 0.3), end: Offset.zero).animate(
          CurvedAnimation(
            parent: _animationController,
            curve: Curves.easeOutCubic,
          ),
        );

    _animationController.forward();
  }

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

  @override
  Widget build(BuildContext context) {
    return Container(
      width: widget.width,
      height: widget.height,
      padding: widget.padding ?? const EdgeInsets.all(24),
      child: FadeTransition(
        opacity: _fadeAnimation,
        child: SlideTransition(
          position: _slideAnimation,
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            mainAxisSize: MainAxisSize.min,
            children: [
              // Empty Illustration
              Stack(
                alignment: Alignment.center,
                children: [
                  // Background Circle
                  Container(
                    width: 120,
                    height: 120,
                    decoration: BoxDecoration(
                      shape: BoxShape.circle,
                      gradient: LinearGradient(
                        colors: [
                          AppColor.primary.withOpacity(0.05),
                          AppColor.secondary.withOpacity(0.05),
                        ],
                      ),
                    ),
                  ),

                  // Icon Container
                  Container(
                    width: 80,
                    height: 80,
                    decoration: BoxDecoration(
                      shape: BoxShape.circle,
                      color: AppColor.surface,
                      border: Border.all(color: AppColor.border, width: 2),
                      boxShadow: [
                        BoxShadow(
                          color: AppColor.primary.withOpacity(0.08),
                          blurRadius: 20,
                          offset: const Offset(0, 4),
                        ),
                      ],
                    ),
                    child: Icon(
                      widget.emptyIcon ?? Icons.inbox_outlined,
                      size: 40,
                      color: widget.iconColor ?? AppColor.textLight,
                    ),
                  ),
                ],
              ),

              const SizedBox(height: 24),

              // Title
              Text(
                widget.title ?? 'Tidak Ada Data',
                style: AppStyle.xl.copyWith(
                  fontWeight: FontWeight.bold,
                  color: AppColor.textPrimary,
                ),
                textAlign: TextAlign.center,
              ),

              const SizedBox(height: 8),

              // Message
              Text(
                widget.message ?? 'Belum ada data untuk ditampilkan',
                style: AppStyle.md.copyWith(
                  color: AppColor.textSecondary,
                  height: 1.4,
                ),
                textAlign: TextAlign.center,
              ),

              // Action Button
              if (widget.showButton && widget.onRefresh != null) ...[
                const SizedBox(height: 24),
                OutlinedButton.icon(
                  onPressed: widget.onRefresh,
                  icon: const Icon(Icons.refresh_rounded, size: 18),
                  label: Text(widget.buttonText ?? 'Muat Ulang'),
                  style: OutlinedButton.styleFrom(
                    foregroundColor: AppColor.primary,
                    side: BorderSide(color: AppColor.primary, width: 1.5),
                    padding: const EdgeInsets.symmetric(
                      horizontal: 20,
                      vertical: 12,
                    ),
                    shape: RoundedRectangleBorder(
                      borderRadius: BorderRadius.circular(8),
                    ),
                  ),
                ),
              ],
            ],
          ),
        ),
      ),
    );
  }
}