import { useState } from 'react';
import { Link } from 'react-router-dom';
import { Heart, Tag, Trash2, Filter, ChevronDown } from 'lucide-react';

const Favorites = () => {
  const [favorites, setFavorites] = useState([
    {
      id: 0,
      title: 'Dell XPS 16 Laptop',
      price: 850,
      category: 'Electronics',
      image: '/image1.avif',
      condition: 'Like New',
      seller: 'Michael T.',
      datePosted: '5d ago',
      dateAdded: '2023-03-08',
    },
    
  ]);

  const [showFilters, setShowFilters] = useState(false);
  const [sortBy, setSortBy] = useState('dateAdded');
  const [filterCategory, setFilterCategory] = useState('All');

  // Function to remove item from favorites
  const removeFromFavorites = (id) => {
    setFavorites(favorites.filter(item => item.id !== id));
  };

  // Available categories for filtering
  const categories = ['All', 'Electronics', 'Textbooks', 'Furniture', 'Kitchen', 'Other'];

  // Sort favorites based on selected sort option
  const sortedFavorites = [...favorites].sort((a, b) => {
    if (sortBy === 'dateAdded') {
      return new Date(b.dateAdded) - new Date(a.dateAdded);
    } else if (sortBy === 'priceHigh') {
      return b.price - a.price;
    } else if (sortBy === 'priceLow') {
      return a.price - b.price;
    }
    return 0;
  });

  // Filter favorites based on selected category
  const filteredFavorites = filterCategory === 'All' 
    ? sortedFavorites 
    : sortedFavorites.filter(item => item.category === filterCategory);

  return (
    <div className="max-w-6xl mx-auto">
      <div className="flex justify-between items-center mb-6">
        <h1 className="text-2xl font-bold text-gray-800">My Favorites</h1>
        <button 
          className="flex items-center text-gray-600 hover:text-gray-800"
          onClick={() => setShowFilters(!showFilters)}
        >
          <Filter className="h-5 w-5 mr-1" />
          <span>Filter & Sort</span>
          <ChevronDown className={`h-4 w-4 ml-1 transition-transform ${showFilters ? 'rotate-180' : ''}`} />
        </button>
      </div>

      {/* Filters and Sorting */}
      {showFilters && (
        <div className="bg-white border border-gray-200 p-4 mb-6">
          <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
            <div>
              <label className="block text-sm font-medium text-gray-700 mb-2">
                Sort by
              </label>
              <select
                value={sortBy}
                onChange={(e) => setSortBy(e.target.value)}
                className="w-full p-2 border border-gray-300 focus:outline-none focus:border-green-500"
              >
                <option value="dateAdded">Recently Added</option>
                <option value="priceHigh">Price (High to Low)</option>
                <option value="priceLow">Price (Low to High)</option>
              </select>
            </div>
            <div>
              <label className="block text-sm font-medium text-gray-700 mb-2">
                Category
              </label>
              <select
                value={filterCategory}
                onChange={(e) => setFilterCategory(e.target.value)}
                className="w-full p-2 border border-gray-300 focus:outline-none focus:border-green-500"
              >
                {categories.map((category) => (
                  <option key={category} value={category}>{category}</option>
                ))}
              </select>
            </div>
          </div>
        </div>
      )}

      {/* Favorites List */}
      {filteredFavorites.length === 0 ? (
        <div className="bg-white border border-gray-200 p-8 text-center">
          <Heart className="h-12 w-12 text-gray-300 mx-auto mb-4" />
          <h3 className="text-xl font-medium text-gray-700 mb-2">No favorites yet</h3>
          <p className="text-gray-500 mb-4">
            Items you save will appear here. Start browsing to add items to your favorites.
          </p>
          <Link 
            to="/" 
            className="inline-block bg-green-500 hover:bg-green-600 text-white font-medium py-2 px-4"
          >
            Browse Listings
          </Link>
        </div>
      ) : (
        <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-6">
          {filteredFavorites.map((item) => (
            <div key={item.id} className="bg-white border border-gray-200 hover:shadow-md transition-shadow relative">
              <button
                onClick={() => removeFromFavorites(item.id)}
                className="absolute top-2 right-2 p-1 bg-white rounded-full shadow-sm text-red-500 hover:bg-red-50"
                title="Remove from favorites"
              >
                <Trash2 className="h-5 w-5" />
              </button>
              
              <Link to={`/product/${item.id}`}>
                <img src={item.image} alt={item.title} className="w-full h-48 object-cover" />
                
                <div className="p-4">
                  <div className="flex justify-between items-start mb-2">
                    <h3 className="text-lg font-medium text-gray-800 leading-tight">
                      {item.title}
                    </h3>
                    <span className="font-semibold text-green-600">${item.price}</span>
                  </div>
                  
                  <div className="flex items-center text-sm text-gray-500 mb-3">
                    <Tag className="h-4 w-4 mr-1" />
                    <span>{item.category}</span>
                    <span className="mx-2">•</span>
                    <span>{item.condition}</span>
                  </div>
                  
                  <div className="flex justify-between items-center pt-2 border-t border-gray-100">
                    <span className="text-xs text-gray-500">Listed {item.datePosted}</span>
                    <span className="text-sm font-medium text-gray-700">{item.seller}</span>
                  </div>
                </div>
              </Link>
            </div>
          ))}
        </div>
      )}

      {/* Show count if there are favorites */}
      {filteredFavorites.length > 0 && (
        <div className="mt-6 text-sm text-gray-500">
          Showing {filteredFavorites.length} {filteredFavorites.length === 1 ? 'item' : 'items'}
          {filterCategory !== 'All' && ` in ${filterCategory}`}
        </div>
      )}
    </div>
  );
};

export default Favorites;