import { useState } from 'react';
import { useRouter } from 'next/router';

export default function CardItem({ 
  card, 
  viewMode = 'grid', 
  isSelected = false, 
  onToggleSelect,
  onAddToCollection,
  onAddToDeck,
  onToggleFavorite,
  isFavorited = false,
  cardIndex = 0,
  cardsPerRow = 4
}) {
  const [imageError, setImageError] = useState(false);
  const router = useRouter();

  const handleSelectChange = (e) => {
    e.stopPropagation();
    onToggleSelect(card);
  };

  const handleImageError = () => {
    setImageError(true);
  };

  const handleCardClick = (e) => {
    // Don't navigate if clicking on interactive elements
    if (e.target.closest('input, button, a')) {
      return;
    }
    router.push(`/card/${card.id}`);
  };

  // Get rarity-based styling
  const getRarityEffects = (rarity) => {
    const rarityLower = rarity?.toLowerCase() || '';
    
    if (rarityLower.includes('mythic') || rarityLower.includes('legendary')) {
      return {
        glow: 'rarity-glow-mythic',
        particles: 'rarity-particles-mythic',
        border: 'border-yellow-400',
        shadow: 'shadow-yellow-400/50'
      };
    } else if (rarityLower.includes('rare') || rarityLower.includes('holo')) {
      return {
        glow: 'rarity-glow-rare',
        particles: 'rarity-particles-rare',
        border: 'border-purple-400',
        shadow: 'shadow-purple-400/50'
      };
    } else if (rarityLower.includes('uncommon')) {
      return {
        glow: 'rarity-glow-uncommon',
        particles: 'rarity-particles-uncommon',
        border: 'border-blue-400',
        shadow: 'shadow-blue-400/30'
      };
    } else if (rarityLower.includes('enchanted') || rarityLower.includes('secret')) {
      return {
        glow: 'rarity-glow-enchanted',
        particles: 'rarity-particles-enchanted',
        border: 'border-pink-400',
        shadow: 'shadow-pink-400/60'
      };
    }
    
    return {
      glow: '',
      particles: '',
      border: 'border-gray-200',
      shadow: ''
    };
  };

  const rarityEffects = getRarityEffects(card.rarity);

  // Determine panel position based on card position in row
  const isRightSide = (cardIndex % cardsPerRow) >= Math.floor(cardsPerRow / 2);
  const panelPosition = isRightSide ? 'right' : 'left';

  if (viewMode === 'list') {
    return (
      <div 
        className={`flex items-center p-4 border rounded-lg transition-all duration-200 cursor-pointer ${
          isSelected 
            ? 'border-purple-500 bg-purple-50 shadow-md' 
            : 'border-gray-200 hover:border-gray-300 hover:shadow-sm'
        }`}
        onClick={handleCardClick}
      >
        {/* Selection Checkbox */}
        <div className="flex-shrink-0 mr-4">
          <input
            type="checkbox"
            checked={isSelected}
            onChange={handleSelectChange}
            className="w-4 h-4 text-purple-600 bg-gray-100 border-gray-300 rounded focus:ring-purple-500 focus:ring-2"
          />
        </div>

        {/* Card Image */}
        <div className="flex-shrink-0 mr-4">
          <div className="w-16 h-22 bg-gray-200 rounded-lg overflow-hidden">
            {!imageError ? (
              <img
                src={card.image_url}
                alt={card.name}
                className="w-full h-full object-cover"
                onError={handleImageError}
              />
            ) : (
              <div className="w-full h-full flex items-center justify-center text-gray-400 text-xs">
                No Image
              </div>
            )}
          </div>
        </div>

        {/* Card Info */}
        <div className="flex-1 min-w-0">
          <h3 className="font-semibold text-gray-900 truncate">{card.name}</h3>
          <p className="text-sm text-gray-600">{card.set_name} • {card.rarity}</p>
          <p className="text-sm text-gray-500">{card.card_type}</p>
        </div>

        {/* Game Badge */}
        <div className="flex-shrink-0 mx-4">
          <span className="px-2 py-1 text-xs font-medium rounded-full bg-blue-100 text-blue-800">
            {card.game}
          </span>
        </div>

        {/* Price */}
        <div className="flex-shrink-0 mx-4">
          <span className="text-lg font-bold text-green-600">
            ${card.market_price}
          </span>
        </div>

        {/* Actions */}
        <div className="flex-shrink-0 flex items-center space-x-2">
          <button
            onClick={(e) => {
              e.stopPropagation();
              onToggleFavorite(card);
            }}
            className={`p-2 rounded-lg transition-colors ${
              isFavorited 
                ? 'text-red-500 hover:text-red-600' 
                : 'text-gray-400 hover:text-red-500'
            }`}
          >
            <svg className="w-5 h-5" fill={isFavorited ? "currentColor" : "none"} stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z" />
            </svg>
          </button>

          <button
            onClick={(e) => {
              e.stopPropagation();
              onAddToCollection(card);
            }}
            className="p-2 text-blue-600 hover:text-blue-700 hover:bg-blue-50 rounded-lg transition-colors"
            title="Add to Collection"
          >
            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
            </svg>
          </button>

          <button
            onClick={(e) => {
              e.stopPropagation();
              onAddToDeck(card);
            }}
            className="p-2 text-green-600 hover:text-green-700 hover:bg-green-50 rounded-lg transition-colors"
            title="Add to Deck"
          >
            <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
            </svg>
          </button>
        </div>
      </div>
    );
  }

  // Grid view
  return (
    <div className={`card-item-container relative group bg-transparent rounded-xl transition-all duration-300 overflow-visible ${
      isSelected ? 'selected scale-105' : ''
    }`}>
      {/* Main Card Container */}
      <div 
        className={`relative bg-white rounded-xl border transition-all duration-300 overflow-hidden cursor-pointer ${
          isSelected 
            ? 'border-purple-500 shadow-xl ring-2 ring-purple-200' 
            : `${rarityEffects.border} group-hover:border-gray-300 group-hover:shadow-lg ${rarityEffects.shadow ? `shadow-lg ${rarityEffects.shadow}` : ''}`
        } ${rarityEffects.glow}`}
        onClick={handleCardClick}
      >
        
        {/* Rarity Particles */}
        {rarityEffects.particles && (
          <div className={`absolute inset-0 pointer-events-none ${rarityEffects.particles}`}></div>
        )}
        {/* Selection Checkbox */}
        <div className="absolute top-3 left-3 z-20">
          <input
            type="checkbox"
            checked={isSelected}
            onChange={handleSelectChange}
            className="w-4 h-4 text-purple-600 bg-white border-gray-300 rounded focus:ring-purple-500 focus:ring-2 shadow-sm"
          />
        </div>

        {/* Favorite Button */}
        <div className="absolute top-3 right-3 z-20">
          <button
            onClick={(e) => {
              e.stopPropagation();
              onToggleFavorite(card);
            }}
            className={`p-2 rounded-full transition-all duration-300 ${
              isFavorited 
                ? 'text-red-500 bg-white shadow-sm' 
                : 'text-gray-400 bg-white/90 hover:text-red-500 hover:bg-white shadow-sm opacity-0 group-hover:opacity-100'
            }`}
          >
            <svg className="w-4 h-4" fill={isFavorited ? "currentColor" : "none"} stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z" />
            </svg>
          </button>
        </div>

        {/* Card Image */}
        <div className="aspect-[2.5/3.5] bg-gray-200 overflow-hidden">
          {!imageError ? (
            <img
              src={card.image_url}
              alt={card.name}
              className="w-full h-full object-cover transition-transform duration-300 group-hover:scale-105"
              onError={handleImageError}
            />
          ) : (
            <div className="w-full h-full flex items-center justify-center text-gray-400">
              <div className="text-center">
                <svg className="w-12 h-12 mx-auto mb-2" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
                </svg>
                <p className="text-xs">No Image</p>
              </div>
            </div>
          )}
        </div>
      </div>

      {/* Side Hover Panel */}
      <div className={`card-side-panel absolute ${
        panelPosition === 'right' 
          ? 'right-full top-0 mr-2' 
          : 'left-full top-0 ml-2'
      } w-80 h-full transition-all duration-300 ease-out z-30 ${
        panelPosition === 'right'
          ? 'opacity-0 -translate-x-2 pointer-events-none group-hover:opacity-100 group-hover:translate-x-0 group-hover:pointer-events-auto delay-300 group-hover:delay-500'
          : 'opacity-0 translate-x-2 pointer-events-none group-hover:opacity-100 group-hover:translate-x-0 group-hover:pointer-events-auto delay-300 group-hover:delay-500'
      }`}>
        <div className={`bg-white dark:bg-gray-800 rounded-xl border shadow-2xl h-full overflow-hidden ${
          rarityEffects.border !== 'border-gray-200' 
            ? `${rarityEffects.border} dark:${rarityEffects.border.replace('border-', 'border-')} ${rarityEffects.glow}` 
            : 'border-gray-200 dark:border-gray-700'
        }`}>
          {/* Panel Header */}
          <div className="p-4 border-b border-gray-200 dark:border-gray-700">
            <div className="flex items-start justify-between mb-2">
              <h3 className="font-bold text-gray-900 dark:text-white text-lg leading-tight pr-2">
                {card.name}
              </h3>
              <span className="text-2xl font-bold text-green-600 dark:text-green-400 flex-shrink-0">
                ${card.market_price}
              </span>
            </div>
            
            {/* TCG-Specific Info */}
            {card.game === 'MTG' && (
              <div className="flex items-center space-x-3 mb-2">
                {card.mana_cost && (
                  <div className="flex items-center space-x-1">
                    <span className="text-sm text-gray-600 dark:text-gray-400">Cost:</span>
                    <span className="px-2 py-1 bg-blue-100 dark:bg-blue-900 text-blue-800 dark:text-blue-200 rounded text-sm font-mono">
                      {card.mana_cost}
                    </span>
                  </div>
                )}
                {card.power && card.toughness && (
                  <div className="flex items-center space-x-1">
                    <span className="text-sm text-gray-600 dark:text-gray-400">P/T:</span>
                    <span className="px-2 py-1 bg-red-100 dark:bg-red-900 text-red-800 dark:text-red-200 rounded text-sm font-bold">
                      {card.power}/{card.toughness}
                    </span>
                  </div>
                )}
              </div>
            )}

            {card.game === 'Pokemon' && card.power && (
              <div className="flex items-center space-x-3 mb-2">
                <div className="flex items-center space-x-1">
                  <span className="text-sm text-gray-600 dark:text-gray-400">HP:</span>
                  <span className="px-2 py-1 bg-yellow-100 dark:bg-yellow-900 text-yellow-800 dark:text-yellow-200 rounded text-sm font-bold">
                    {card.power}
                  </span>
                </div>
              </div>
            )}

            {card.game === 'Lorcana' && card.cmc && (
              <div className="flex items-center space-x-3 mb-2">
                <div className="flex items-center space-x-1">
                  <span className="text-sm text-gray-600 dark:text-gray-400">Cost:</span>
                  <span className="px-2 py-1 bg-purple-100 dark:bg-purple-900 text-purple-800 dark:text-purple-200 rounded text-sm font-bold">
                    {card.cmc}
                  </span>
                </div>
                {card.power && card.toughness && (
                  <div className="flex items-center space-x-1">
                    <span className="text-sm text-gray-600 dark:text-gray-400">Str/Will:</span>
                    <span className="px-2 py-1 bg-amber-100 dark:bg-amber-900 text-amber-800 dark:text-amber-200 rounded text-sm font-bold">
                      {card.power}/{card.toughness}
                    </span>
                  </div>
                )}
              </div>
            )}

            <div className="flex items-center space-x-2">
              <span className="px-2 py-1 text-sm font-medium rounded-full bg-blue-100 dark:bg-blue-900 text-blue-800 dark:text-blue-200">
                {card.game}
              </span>
              <span className="text-sm text-gray-600 dark:text-gray-400">{card.set_name}</span>
              {rarityEffects.glow && (
                <div className="flex items-center space-x-1">
                  <div className={`w-2 h-2 rounded-full ${
                    card.rarity?.toLowerCase().includes('mythic') || card.rarity?.toLowerCase().includes('legendary') 
                      ? 'bg-yellow-400 shadow-sm shadow-yellow-400/50' 
                      : card.rarity?.toLowerCase().includes('rare') || card.rarity?.toLowerCase().includes('holo')
                      ? 'bg-purple-400 shadow-sm shadow-purple-400/50'
                      : card.rarity?.toLowerCase().includes('uncommon')
                      ? 'bg-blue-400 shadow-sm shadow-blue-400/50'
                      : card.rarity?.toLowerCase().includes('enchanted') || card.rarity?.toLowerCase().includes('secret')
                      ? 'bg-pink-400 shadow-sm shadow-pink-400/50'
                      : 'bg-gray-400'
                  } animate-pulse`}></div>
                </div>
              )}
            </div>
          </div>

          {/* Panel Body */}
          <div className="p-4 flex-1 overflow-y-auto">
            <div className="space-y-4">
              {/* Card Details */}
              <div>
                <div className="grid grid-cols-2 gap-4 mb-4">
                  <div>
                    <span className="text-sm font-medium text-gray-500 dark:text-gray-400">Rarity</span>
                    <p className="text-sm text-gray-900 dark:text-white font-medium">{card.rarity}</p>
                  </div>
                  <div>
                    <span className="text-sm font-medium text-gray-500 dark:text-gray-400">Type</span>
                    <p className="text-sm text-gray-900 dark:text-white font-medium">{card.card_type}</p>
                  </div>
                </div>

                {/* Oracle Text */}
                {card.oracle_text && (
                  <div className="mb-4">
                    <span className="text-sm font-medium text-gray-500 dark:text-gray-400">Description</span>
                    <p className="text-sm text-gray-700 dark:text-gray-300 mt-1 leading-relaxed">
                      {card.oracle_text}
                    </p>
                  </div>
                )}

                {/* Colors for MTG */}
                {card.game === 'MTG' && card.colors && card.colors.length > 0 && (
                  <div className="mb-4">
                    <span className="text-sm font-medium text-gray-500 dark:text-gray-400">Colors</span>
                    <div className="flex flex-wrap gap-1 mt-1">
                      {card.colors.map((color, index) => (
                        <span key={index} className="px-2 py-1 text-xs rounded-full bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300">
                          {color}
                        </span>
                      ))}
                    </div>
                  </div>
                )}
              </div>
            </div>
          </div>

          {/* Panel Footer - Actions */}
          <div className="p-4 border-t border-gray-200 dark:border-gray-700 bg-gray-50 dark:bg-gray-900">
            <div className="space-y-3">
              {/* Primary Actions */}
              <div className="grid grid-cols-2 gap-2">
                <button
                  onClick={(e) => {
                    e.stopPropagation();
                    onAddToCollection([card]);
                  }}
                  className="flex items-center justify-center space-x-2 px-3 py-2 bg-blue-600 hover:bg-blue-700 text-white rounded-lg transition-colors text-sm font-medium"
                >
                  <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
                  </svg>
                  <span>Collection</span>
                </button>

                <button
                  onClick={(e) => {
                    e.stopPropagation();
                    onAddToDeck([card]);
                  }}
                  className="flex items-center justify-center space-x-2 px-3 py-2 bg-green-600 hover:bg-green-700 text-white rounded-lg transition-colors text-sm font-medium"
                >
                  <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
                  </svg>
                  <span>Deck</span>
                </button>
              </div>

              {/* Secondary Actions */}
              <div className="grid grid-cols-4 gap-2">
                <button
                  onClick={(e) => {
                    e.stopPropagation();
                    alert('Mark as owned (coming soon)');
                  }}
                  className="flex items-center justify-center p-2 bg-purple-100 dark:bg-purple-900 text-purple-700 dark:text-purple-300 rounded-lg hover:bg-purple-200 dark:hover:bg-purple-800 transition-colors"
                  title="Mark as Owned"
                >
                  <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5 13l4 4L19 7" />
                  </svg>
                </button>

                <button
                  onClick={(e) => {
                    e.stopPropagation();
                    onToggleFavorite(card);
                  }}
                  className={`flex items-center justify-center p-2 rounded-lg transition-colors ${
                    isFavorited 
                      ? 'bg-red-100 dark:bg-red-900 text-red-700 dark:text-red-300 hover:bg-red-200 dark:hover:bg-red-800' 
                      : 'bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-600'
                  }`}
                  title="Toggle Favorite"
                >
                  <svg className="w-4 h-4" fill={isFavorited ? "currentColor" : "none"} stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z" />
                  </svg>
                </button>

                <button
                  onClick={(e) => {
                    e.stopPropagation();
                    router.push(`/card/${card.id}`);
                  }}
                  className="flex items-center justify-center p-2 bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-600 transition-colors"
                  title="View Details"
                >
                  <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z" />
                  </svg>
                </button>

                <button
                  onClick={(e) => {
                    e.stopPropagation();
                    navigator.clipboard.writeText(`${card.name} - ${card.set_name}`);
                    // Could add a toast notification here
                  }}
                  className="flex items-center justify-center p-2 bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300 rounded-lg hover:bg-gray-200 dark:hover:bg-gray-600 transition-colors"
                  title="Copy Card Info"
                >
                  <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z" />
                  </svg>
                </button>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  );
}