import 'package:flutter/material.dart';
import 'package:cached_network_image/cached_network_image.dart';
import '../../../core/theme/app_colors.dart';

/// Premium channel card with Netflix-style design
/// 
/// Features:
/// - Glassmorphism background
/// - Thumbnail/logo with fallback
/// - Live badge with pulse animation
/// - EPG overlay
/// - Hover/tap effects
class ChannelCard extends StatefulWidget {
  final String name;
  final String? iconUrl;
  final String? currentProgram;
  final bool isLive;
  final VoidCallback? onTap;
  final double? width;
  final double? height;

  const ChannelCard({
    super.key,
    required this.name,
    this.iconUrl,
    this.currentProgram,
    this.isLive = true,
    this.onTap,
    this.width,
    this.height,
  });

  @override
  State<ChannelCard> createState() => _ChannelCardState();
}

class _ChannelCardState extends State<ChannelCard>
    with SingleTickerProviderStateMixin {
  bool _isHovered = false;
  late AnimationController _pulseController;
  late Animation<double> _pulseAnimation;

  @override
  void initState() {
    super.initState();
    _pulseController = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 1500),
    )..repeat(reverse: true);
    
    _pulseAnimation = Tween<double>(begin: 0.8, end: 1.0).animate(
      CurvedAnimation(parent: _pulseController, curve: Curves.easeInOut),
    );
  }

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

  @override
  Widget build(BuildContext context) {
    final theme = Theme.of(context);
    final isDark = theme.brightness == Brightness.dark;
    
    return MouseRegion(
      onEnter: (_) => setState(() => _isHovered = true),
      onExit: (_) => setState(() => _isHovered = false),
      child: GestureDetector(
        onTap: widget.onTap,
        child: AnimatedContainer(
          duration: const Duration(milliseconds: 200),
          curve: Curves.easeOutCubic,
          width: widget.width ?? 180,
          height: widget.height ?? 120,
          transform: Matrix4.identity()..scale(_isHovered ? 1.05 : 1.0),
          transformAlignment: Alignment.center,
          decoration: BoxDecoration(
            borderRadius: BorderRadius.circular(12),
            gradient: LinearGradient(
              begin: Alignment.topLeft,
              end: Alignment.bottomRight,
              colors: isDark
                  ? [
                      AppColors.surfaceDark.withOpacity(0.95),
                      AppColors.surfaceVariantDark.withOpacity(0.9),
                    ]
                  : [
                      Colors.white.withOpacity(0.95),
                      AppColors.surfaceVariantLight.withOpacity(0.9),
                    ],
            ),
            border: Border.all(
              color: _isHovered
                  ? AppColors.primary.withOpacity(0.5)
                  : (isDark ? AppColors.borderDark : AppColors.borderLight),
              width: _isHovered ? 1.5 : 1,
            ),
            boxShadow: _isHovered
                ? [
                    BoxShadow(
                      color: AppColors.primary.withOpacity(0.2),
                      blurRadius: 20,
                      offset: const Offset(0, 8),
                    ),
                  ]
                : [
                    BoxShadow(
                      color: Colors.black.withOpacity(isDark ? 0.3 : 0.1),
                      blurRadius: 8,
                      offset: const Offset(0, 4),
                    ),
                  ],
          ),
          child: ClipRRect(
            borderRadius: BorderRadius.circular(11),
            child: Stack(
              fit: StackFit.expand,
              children: [
                // Channel logo/thumbnail
                _buildChannelImage(isDark),
                
                // Gradient overlay for text readability
                Positioned.fill(
                  child: DecoratedBox(
                    decoration: BoxDecoration(
                      gradient: LinearGradient(
                        begin: Alignment.topCenter,
                        end: Alignment.bottomCenter,
                        colors: [
                          Colors.transparent,
                          Colors.black.withOpacity(0.7),
                        ],
                        stops: const [0.4, 1.0],
                      ),
                    ),
                  ),
                ),
                
                // Live badge
                if (widget.isLive)
                  Positioned(
                    top: 8,
                    right: 8,
                    child: _buildLiveBadge(),
                  ),
                
                // Channel info overlay
                Positioned(
                  left: 10,
                  right: 10,
                  bottom: 10,
                  child: Column(
                    mainAxisSize: MainAxisSize.min,
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(
                        widget.name,
                        style: const TextStyle(
                          color: Colors.white,
                          fontSize: 13,
                          fontWeight: FontWeight.w600,
                          shadows: [
                            Shadow(
                              color: Colors.black54,
                              blurRadius: 4,
                            ),
                          ],
                        ),
                        maxLines: 1,
                        overflow: TextOverflow.ellipsis,
                      ),
                      if (widget.currentProgram != null) ...[
                        const SizedBox(height: 2),
                        Text(
                          widget.currentProgram!,
                          style: TextStyle(
                            color: Colors.white.withOpacity(0.8),
                            fontSize: 11,
                            fontWeight: FontWeight.w400,
                          ),
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                        ),
                      ],
                    ],
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }

  Widget _buildChannelImage(bool isDark) {
    if (widget.iconUrl != null && widget.iconUrl!.isNotEmpty) {
      return CachedNetworkImage(
        imageUrl: widget.iconUrl!,
        fit: BoxFit.cover,
        placeholder: (context, url) => _buildPlaceholder(isDark),
        errorWidget: (context, url, error) => _buildPlaceholder(isDark),
      );
    }
    return _buildPlaceholder(isDark);
  }

  Widget _buildPlaceholder(bool isDark) {
    return Container(
      color: isDark ? AppColors.surfaceVariantDark : AppColors.surfaceVariantLight,
      child: Center(
        child: Icon(
          Icons.live_tv_rounded,
          size: 36,
          color: isDark ? AppColors.textSecondaryDark : AppColors.textSecondaryLight,
        ),
      ),
    );
  }

  Widget _buildLiveBadge() {
    return AnimatedBuilder(
      animation: _pulseAnimation,
      builder: (context, child) {
        return Container(
          padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
          decoration: BoxDecoration(
            color: AppColors.live.withOpacity(_pulseAnimation.value),
            borderRadius: BorderRadius.circular(4),
            boxShadow: [
              BoxShadow(
                color: AppColors.live.withOpacity(0.4 * _pulseAnimation.value),
                blurRadius: 8,
                spreadRadius: 1,
              ),
            ],
          ),
          child: child,
        );
      },
      child: const Row(
        mainAxisSize: MainAxisSize.min,
        children: [
          Icon(
            Icons.circle,
            size: 6,
            color: Colors.white,
          ),
          SizedBox(width: 4),
          Text(
            'LIVE',
            style: TextStyle(
              color: Colors.white,
              fontSize: 10,
              fontWeight: FontWeight.w700,
              letterSpacing: 0.5,
            ),
          ),
        ],
      ),
    );
  }
}