'use client';

import { useState, useEffect } from 'react';
import { motion, AnimatePresence } from 'framer-motion';
import {
  Search,
  MapPin,
  Bed,
  Bath,
  Square,
  DollarSign,
  Filter,
  Grid3x3,
  List,
  Heart,
  Share2,
  ChevronDown,
  Star,
  Camera,
  Home,
  Building2,
  Trees,
  Waves,
  Warehouse,
  Sparkles,
  Shield,
  Calendar,
  Phone,
  Mail,
  MessageCircle
} from 'lucide-react';
import Image from 'next/image';
import Link from 'next/link';
import { getRentProperties, getSaleProperties } from '../utils/api';

// Map API data to UI format
function mapApiProperty(item, index) {
  const info = item.propertyInformation || {};

  const dailyPrice = item.dailyRent ?? item.monthlyRent ?? item.price ?? 0;
  const monthlyPrice = item.monthlyRent ?? 0;

  const buildingTypeMap = { 0: 'apartment', 1: 'villa', 2: 'house' };
  const propType = buildingTypeMap[info.buildingType] ?? buildingTypeMap[item.type] ?? 'apartment';

  const statusMap = { 0: 'available', 1: 'booked', 2: 'maintenance' };
  const status = statusMap[info.status] ?? statusMap[item.status] ?? 'available';

  const features = [];
  if (item.isSmokeAllow) features.push('يسمح بالتدخين');
  if (item.isVisitorAllow) features.push('يسمح بالزوار');
  if (item.specializedFor) features.push('متخصص');
  if (info.numberOfBedRooms) features.push(`${info.numberOfBedRooms} غرف نوم`);
  if (info.numberOfBathRooms) features.push(`${info.numberOfBathRooms} حمامات`);

  // Extract images from API and build full URLs
  const apiBase = typeof window !== 'undefined' ? (process.env.NEXT_PUBLIC_API_URL || 'http://45.93.137.91/api') : '';
  const rawImages = Array.isArray(info.images) ? info.images : [];
  const images = rawImages.length > 0
    ? rawImages.map(img => img.startsWith('http') ? img : `${apiBase}${img.startsWith('/') ? '' : '/'}${img}`)
    : ['/property-placeholder.jpg'];

  return {
    id: item.id ?? index + 1,
    title: info.address || `عقار #${item.id || index + 1}`,
    description: info.description || '',
    type: propType,
    price: dailyPrice,
    priceUnit: 'daily',
    location: {
      city: extractCity(info.address) || 'دمشق',
      district: info.address || '',
    },
    bedrooms: info.numberOfBedRooms || 0,
    bathrooms: info.numberOfBathRooms || 0,
    area: info.space || 0,
    features,
    images,
    status,
    rating: item.rating || 4.5,
    isNew: false,
    _raw: item,
  };
}

function extractCity(address) {
  if (!address) return '';
  const cities = ['دمشق', 'حلب', 'حمص', 'اللاذقية', 'درعا', 'طرطوس', 'السويداء', 'دير الزور', 'الرقة', 'إدلب', 'الحسكة', 'القامشلي', 'ريف دمشق'];
  for (const city of cities) {
    if (address.includes(city)) return city;
  }
  return '';
}

// API-only — no fallback data

const PropertyCard = ({ property, viewMode = 'grid' }) => {
  const [isFavorite, setIsFavorite] = useState(false);
  const [currentImage, setCurrentImage] = useState(0);

  const formatCurrency = (amount) => {
    return amount?.toLocaleString() + ' ل.س';
  };

  const getPropertyTypeIcon = (type) => {
    switch (type) {
      case 'villa': return <Home className="w-4 h-4" />;
      case 'apartment': return <Building2 className="w-4 h-4" />;
      case 'house': return <Home className="w-4 h-4" />;
      case 'studio': return <Building2 className="w-4 h-4" />;
      default: return <Home className="w-4 h-4" />;
    }
  };

  const getPropertyTypeLabel = (type) => {
    switch (type) {
      case 'villa': return 'فيلا';
      case 'apartment': return 'شقة';
      case 'house': return 'بيت';
      case 'studio': return 'استوديو';
      default: return type;
    }
  };

  if (viewMode === 'list') {
    return (
      <motion.div
        initial={{ opacity: 0, y: 20 }}
        animate={{ opacity: 1, y: 0 }}
        className="bg-white rounded-2xl shadow-sm hover:shadow-md transition-all duration-300 overflow-hidden border border-gray-100"
      >
        <div className="flex flex-col md:flex-row">
          <div className="md:w-1/3 relative h-64 md:h-auto bg-gray-100">
            <Image
              src={property.images[currentImage] || '/property-placeholder.jpg'}
              alt={property.title}
              fill
              className="object-cover"
            />
            {property.images.length > 1 && (
              <div className="absolute bottom-2 left-2 right-2 flex justify-center gap-1">
                {property.images.map((_, idx) => (
                  <button
                    key={idx}
                    onClick={() => setCurrentImage(idx)}
                    className={`w-1.5 h-1.5 rounded-full transition-all ${idx === currentImage ? 'bg-gray-800 w-3' : 'bg-white/70'}`}
                  />
                ))}
              </div>
            )}
            <div className="absolute top-2 right-2 flex gap-2">
              <button
                onClick={() => setIsFavorite(!isFavorite)}
                className="w-8 h-8 bg-white/90 backdrop-blur-sm rounded-full flex items-center justify-center hover:bg-white transition-colors shadow-sm"
              >
                <Heart className={`w-4 h-4 ${isFavorite ? 'fill-red-500 text-red-500' : 'text-gray-600'}`} />
              </button>
            </div>
          </div>

          <div className="md:w-2/3 p-6">
            <div className="flex justify-between items-start mb-3">
              <div>
                <div className="flex items-center gap-2 mb-2">
                  <span className="px-2 py-1 bg-gray-100 text-gray-700 rounded-lg text-xs font-medium flex items-center gap-1">
                    {getPropertyTypeIcon(property.type)}
                    {getPropertyTypeLabel(property.type)}
                  </span>
                  <span className={`px-2 py-1 rounded-lg text-xs font-medium ${property.status === 'available' ? 'bg-gray-800 text-white' : 'bg-gray-200 text-gray-600'}`}>
                    {property.status === 'available' ? 'متاح' : 'محجوز'}
                  </span>
                </div>
                <h3 className="text-xl font-bold text-gray-900 mb-1">{property.title}</h3>
                <div className="flex items-center gap-1 text-gray-500 text-sm mb-3">
                  <MapPin className="w-4 h-4" />
                  {property.location.city}، {property.location.district}
                </div>
              </div>
              <div className="text-left">
                <div className="text-2xl font-bold text-gray-900">{formatCurrency(property.price)}</div>
                <div className="text-xs text-gray-500">/{property.priceUnit === 'daily' ? 'يوم' : 'شهر'}</div>
              </div>
            </div>

            <div className="flex flex-wrap gap-4 mb-4">
              <div className="flex items-center gap-1 text-gray-600">
                <Bed className="w-4 h-4" />
                <span>{property.bedrooms} غرف</span>
              </div>
              <div className="flex items-center gap-1 text-gray-600">
                <Bath className="w-4 h-4" />
                <span>{property.bathrooms} حمامات</span>
              </div>
              <div className="flex items-center gap-1 text-gray-600">
                <Square className="w-4 h-4" />
                <span>{property.area} م²</span>
              </div>
            </div>

            <p className="text-gray-600 text-sm mb-4 line-clamp-2">{property.description}</p>

            <div className="flex gap-3">
              <Link
                href={`/property/${property.id}`}
                className="flex-1 bg-gray-800 text-white py-3 rounded-xl font-medium hover:bg-gray-900 transition-colors text-center"
              >
                عرض التفاصيل
              </Link>
              <button className="px-4 bg-gray-100 text-gray-700 py-3 rounded-xl font-medium hover:bg-gray-200 transition-colors flex items-center gap-2">
                <Phone className="w-4 h-4" />
              </button>
            </div>
          </div>
        </div>
      </motion.div>
    );
  }

  return (
    <motion.div
      initial={{ opacity: 0, y: 20 }}
      animate={{ opacity: 1, y: 0 }}
      className="bg-white rounded-2xl shadow-sm hover:shadow-md transition-all duration-300 overflow-hidden border border-gray-100"
    >
      <div className="relative h-56 bg-gray-100">
        <Image
          src={property.images[currentImage] || '/property-placeholder.jpg'}
          alt={property.title}
          fill
          className="object-cover"
        />
        <div className="absolute top-2 right-2 flex gap-2">
          <button
            onClick={() => setIsFavorite(!isFavorite)}
            className="w-8 h-8 bg-white/90 backdrop-blur-sm rounded-full flex items-center justify-center hover:bg-white transition-colors shadow-sm"
          >
            <Heart className={`w-4 h-4 ${isFavorite ? 'fill-red-500 text-red-500' : 'text-gray-600'}`} />
          </button>
        </div>
      </div>

      <div className="p-5">
        <div className="flex justify-between items-start mb-3">
          <div>
            <div className="flex items-center gap-2 mb-2">
              <span className="px-2 py-1 bg-gray-100 text-gray-700 rounded-lg text-xs font-medium flex items-center gap-1">
                {getPropertyTypeIcon(property.type)}
                {getPropertyTypeLabel(property.type)}
              </span>
              {property.status === 'available' && (
                <span className="px-2 py-1 bg-gray-800 text-white rounded-lg text-xs font-medium">متاح</span>
              )}
            </div>
            <h3 className="font-bold text-gray-900 mb-1 line-clamp-1">{property.title}</h3>
            <div className="flex items-center gap-1 text-gray-500 text-xs mb-2">
              <MapPin className="w-3 h-3" />
              <span className="line-clamp-1">{property.location.city}، {property.location.district}</span>
            </div>
          </div>
          <div className="text-left">
            <div className="text-xl font-bold text-gray-900">{formatCurrency(property.price)}</div>
            <div className="text-xs text-gray-500">/{property.priceUnit === 'daily' ? 'يوم' : 'شهر'}</div>
          </div>
        </div>

        <div className="flex justify-between items-center mb-4">
          <div className="flex items-center gap-3 text-gray-600 text-sm">
            <div className="flex items-center gap-1">
              <Bed className="w-4 h-4" />
              <span>{property.bedrooms}</span>
            </div>
            <div className="flex items-center gap-1">
              <Bath className="w-4 h-4" />
              <span>{property.bathrooms}</span>
            </div>
            <div className="flex items-center gap-1">
              <Square className="w-4 h-4" />
              <span>{property.area}م²</span>
            </div>
          </div>
          <div className="flex items-center gap-1">
            <Star className="w-4 h-4 fill-gray-400 text-gray-400" />
            <span className="text-sm font-medium text-gray-700">{property.rating || 4.5}</span>
          </div>
        </div>

        <Link
          href={`/property/${property.id}`}
          className="block w-full bg-gray-800 text-white py-3 rounded-xl font-medium hover:bg-gray-900 transition-colors text-center"
        >
          عرض التفاصيل
        </Link>
      </div>
    </motion.div>
  );
};

const FilterBar = ({ filters, onFilterChange }) => {
  const [showFilters, setShowFilters] = useState(false);

  const propertyTypes = [
    { id: 'all', label: 'الكل' },
    { id: 'apartment', label: 'شقة', icon: Building2 },
    { id: 'villa', label: 'فيلا', icon: Home },
    { id: 'house', label: 'بيت', icon: Home },
  ];

  const priceRanges = [
    { id: 'all', label: 'جميع الأسعار' },
    { id: '0-500000', label: 'أقل من 500,000' },
    { id: '500000-1000000', label: '500,000 - 1,000,000' },
    { id: '1000000-2000000', label: '1,000,000 - 2,000,000' },
    { id: '2000000-5000000', label: '2,000,000 - 5,000,000' },
    { id: '5000000+', label: 'أكثر من 5,000,000' }
  ];

  const cities = [
    { id: 'all', label: 'جميع المدن' },
    { id: 'دمشق', label: 'دمشق' },
    { id: 'حلب', label: 'حلب' },
    { id: 'حمص', label: 'حمص' },
    { id: 'اللاذقية', label: 'اللاذقية' },
    { id: 'درعا', label: 'درعا' }
  ];

  return (
    <div className="bg-white rounded-2xl shadow-sm border border-gray-100 p-4">
      <div className="flex flex-col md:flex-row gap-3 mb-4">
        <div className="flex-1 relative">
          <Search className="absolute right-3 top-1/2 transform -translate-y-1/2 w-5 h-5 text-gray-400" />
          <input
            type="text"
            placeholder="ابحث عن عقار..."
            className="w-full pr-12 px-4 py-3 border border-gray-200 rounded-xl focus:ring-2 focus:ring-gray-300 focus:border-gray-300 transition-all"
            value={filters.search}
            onChange={(e) => onFilterChange({ ...filters, search: e.target.value })}
          />
        </div>
        <button
          onClick={() => setShowFilters(!showFilters)}
          className="px-6 py-3 bg-gray-100 rounded-xl font-medium hover:bg-gray-200 transition-colors flex items-center gap-2 text-gray-700"
        >
          <Filter className="w-5 h-5" />
          فلاتر متقدمة
          <ChevronDown className={`w-4 h-4 transition-transform ${showFilters ? 'rotate-180' : ''}`} />
        </button>
      </div>

      <AnimatePresence>
        {showFilters && (
          <motion.div
            initial={{ height: 0, opacity: 0 }}
            animate={{ height: 'auto', opacity: 1 }}
            exit={{ height: 0, opacity: 0 }}
            className="overflow-hidden"
          >
            <div className="grid grid-cols-1 md:grid-cols-3 gap-4 pt-4 border-t border-gray-100">
              <div>
                <label className="block text-sm font-medium text-gray-700 mb-2">نوع العقار</label>
                <div className="flex flex-wrap gap-2">
                  {propertyTypes.map((type) => {
                    const Icon = type.icon;
                    return (
                      <button
                        key={type.id}
                        onClick={() => onFilterChange({ ...filters, propertyType: type.id })}
                        className={`px-3 py-2 rounded-xl text-sm font-medium transition-all flex items-center gap-1 ${filters.propertyType === type.id ? 'bg-gray-800 text-white' : 'bg-gray-100 text-gray-700 hover:bg-gray-200'}`}
                      >
                        {Icon && <Icon className="w-4 h-4" />}
                        {type.label}
                      </button>
                    );
                  })}
                </div>
              </div>

              <div>
                <label className="block text-sm font-medium text-gray-700 mb-2">المدينة</label>
                <select
                  value={filters.city}
                  onChange={(e) => onFilterChange({ ...filters, city: e.target.value })}
                  className="w-full px-4 py-2 border border-gray-200 rounded-xl focus:ring-2 focus:ring-gray-300 focus:border-gray-300"
                >
                  {cities.map((city) => (
                    <option key={city.id} value={city.id}>{city.label}</option>
                  ))}
                </select>
              </div>

              <div>
                <label className="block text-sm font-medium text-gray-700 mb-2">نطاق السعر</label>
                <select
                  value={filters.priceRange}
                  onChange={(e) => onFilterChange({ ...filters, priceRange: e.target.value })}
                  className="w-full px-4 py-2 border border-gray-200 rounded-xl focus:ring-2 focus:ring-gray-300 focus:border-gray-300"
                >
                  {priceRanges.map((range) => (
                    <option key={range.id} value={range.id}>{range.label}</option>
                  ))}
                </select>
              </div>

              <div>
                <label className="block text-sm font-medium text-gray-700 mb-2">غرف النوم</label>
                <select
                  value={filters.bedrooms}
                  onChange={(e) => onFilterChange({ ...filters, bedrooms: e.target.value })}
                  className="w-full px-4 py-2 border border-gray-200 rounded-xl focus:ring-2 focus:ring-gray-300 focus:border-gray-300"
                >
                  <option value="all">جميع الأعداد</option>
                  <option value="1">1+</option>
                  <option value="2">2+</option>
                  <option value="3">3+</option>
                  <option value="4">4+</option>
                  <option value="5">5+</option>
                </select>
              </div>

              <div>
                <label className="block text-sm font-medium text-gray-700 mb-2">المساحة (م²)</label>
                <div className="flex gap-2">
                  <input
                    type="number"
                    placeholder="من"
                    className="w-full px-4 py-2 border border-gray-200 rounded-xl focus:ring-2 focus:ring-gray-300 focus:border-gray-300"
                    value={filters.minArea}
                    onChange={(e) => onFilterChange({ ...filters, minArea: e.target.value })}
                  />
                  <input
                    type="number"
                    placeholder="إلى"
                    className="w-full px-4 py-2 border border-gray-200 rounded-xl focus:ring-2 focus:ring-gray-300 focus:border-gray-300"
                    value={filters.maxArea}
                    onChange={(e) => onFilterChange({ ...filters, maxArea: e.target.value })}
                  />
                </div>
              </div>
            </div>

            <div className="flex gap-3 mt-4 pt-4 border-t border-gray-100">
              <button
                onClick={() => onFilterChange({
                  search: '',
                  propertyType: 'all',
                  city: 'all',
                  priceRange: 'all',
                  bedrooms: 'all',
                  minArea: '',
                  maxArea: '',
                  features: []
                })}
                className="px-6 py-2 bg-gray-100 rounded-xl font-medium hover:bg-gray-200 transition-colors text-gray-700"
              >
                إعادة تعيين
              </button>
              <button
                onClick={() => setShowFilters(false)}
                className="px-6 py-2 bg-gray-800 text-white rounded-xl font-medium hover:bg-gray-900 transition-colors"
              >
                تطبيق الفلاتر
              </button>
            </div>
          </motion.div>
        )}
      </AnimatePresence>
    </div>
  );
};

export default function PropertiesPage() {
  const [viewMode, setViewMode] = useState('grid');
  const [sortBy, setSortBy] = useState('newest');
  const [properties, setProperties] = useState([]);
  const [loading, setLoading] = useState(true);
  const [filters, setFilters] = useState({
    search: '',
    propertyType: 'all',
    city: 'all',
    priceRange: 'all',
    bedrooms: 'all',
    minArea: '',
    maxArea: '',
    features: []
  });

  useEffect(() => {
    async function fetchProperties() {
      try {
        const [rentData, saleData] = await Promise.all([
          getRentProperties().catch(() => []),
          getSaleProperties().catch(() => []),
        ]);

        const rentList = Array.isArray(rentData) ? rentData : [];
        const saleList = Array.isArray(saleData) ? saleData : [];

        const mapped = [
          ...rentList.map((p, i) => mapApiProperty(p, i)),
          ...saleList.map((p, i) => mapApiProperty(p, rentList.length + i)),
        ];

        if (mapped.length > 0) {
          setProperties(mapped);
        }
      } catch (err) {
        console.error('[Properties] Failed to fetch properties:', err);
      } finally {
        setLoading(false);
      }
    }

    fetchProperties();
  }, []);

  const filteredProperties = properties
    .filter(property => {
      if (filters.search && !property.title.includes(filters.search) && !property.description.includes(filters.search)) {
        return false;
      }
      if (filters.propertyType !== 'all' && property.type !== filters.propertyType) {
        return false;
      }
      if (filters.city !== 'all' && property.location.city !== filters.city) {
        return false;
      }
      if (filters.priceRange !== 'all') {
        const [min, max] = filters.priceRange.split('-');
        if (max) {
          if (property.price < parseInt(min) || property.price > parseInt(max)) return false;
        } else if (filters.priceRange.endsWith('+')) {
          const minVal = parseInt(filters.priceRange.replace('+', ''));
          if (property.price < minVal) return false;
        }
      }
      if (filters.bedrooms !== 'all' && property.bedrooms < parseInt(filters.bedrooms)) {
        return false;
      }
      if (filters.minArea && property.area < parseInt(filters.minArea)) return false;
      if (filters.maxArea && property.area > parseInt(filters.maxArea)) return false;
      return true;
    })
    .sort((a, b) => {
      switch (sortBy) {
        case 'price_asc': return a.price - b.price;
        case 'price_desc': return b.price - a.price;
        case 'rating': return b.rating - a.rating;
        default: return 0;
      }
    });

  return (
    <div className="min-h-screen bg-gray-50 py-8">
      <div className="container mx-auto px-4">
        <motion.div
          initial={{ opacity: 0, y: -20 }}
          animate={{ opacity: 1, y: 0 }}
          className="text-center mb-8"
        >
          <h1 className="text-4xl font-bold text-gray-900 mb-2">عقارات للإيجار</h1>
          <p className="text-gray-500">أفضل العقارات في سوريا</p>
          {loading && (
            <div className="mt-4">
              <div className="inline-block w-6 h-6 border-2 border-gray-200 border-t-gray-800 rounded-full animate-spin"></div>
            </div>
          )}
        </motion.div>

        <FilterBar filters={filters} onFilterChange={setFilters} />

        <div className="flex justify-between items-center my-6">
          <div className="text-gray-600">
            <span className="font-bold text-gray-900">{filteredProperties.length}</span> عقار متاح
          </div>
          <div className="flex gap-3">
            <select
              value={sortBy}
              onChange={(e) => setSortBy(e.target.value)}
              className="px-4 py-2 border border-gray-200 rounded-xl focus:ring-2 focus:ring-gray-300 focus:border-gray-300 text-gray-700"
            >
              <option value="newest">الأحدث</option>
              <option value="price_asc">السعر: من الأقل</option>
              <option value="price_desc">السعر: من الأعلى</option>
              <option value="rating">التقييم</option>
            </select>
            <div className="flex gap-2">
              <button
                onClick={() => setViewMode('grid')}
                className={`p-2 rounded-xl transition-colors ${viewMode === 'grid' ? 'bg-gray-800 text-white' : 'bg-gray-100 text-gray-600 hover:bg-gray-200'}`}
              >
                <Grid3x3 className="w-5 h-5" />
              </button>
              <button
                onClick={() => setViewMode('list')}
                className={`p-2 rounded-xl transition-colors ${viewMode === 'list' ? 'bg-gray-800 text-white' : 'bg-gray-100 text-gray-600 hover:bg-gray-200'}`}
              >
                <List className="w-5 h-5" />
              </button>
            </div>
          </div>
        </div>

        <div className={viewMode === 'grid'
          ? 'grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6'
          : 'space-y-4'
        }>
          {filteredProperties.map((property) => (
            <PropertyCard key={property.id} property={property} viewMode={viewMode} />
          ))}
        </div>

        {filteredProperties.length === 0 && (
          <motion.div
            initial={{ opacity: 0 }}
            animate={{ opacity: 1 }}
            className="text-center py-16"
          >
            <div className="w-24 h-24 bg-gray-100 rounded-full flex items-center justify-center mx-auto mb-4">
              <Home className="w-12 h-12 text-gray-400" />
            </div>
            <h3 className="text-xl font-bold text-gray-700 mb-2">لا توجد عقارات</h3>
            <p className="text-gray-500">جرب تغيير معايير البحث</p>
          </motion.div>
        )}
      </div>
    </div>
  );
}