'use client';

import { useState, useRef, useEffect } from 'react';
import { motion, AnimatePresence } from 'framer-motion';
import {
  ShieldCheck,
  Lock,
  Zap,
  Star,
  Rocket,
  Search,
  MapPin,
  Home,
  DollarSign,
  ChevronDown,
  Shield,
  Award,
  Sparkles,
  UserCircle,
  LogOut,
  Calendar,
  Building,
  PlusCircle,
  Heart,
  MessageCircle
} from 'lucide-react';
import HeroSearch from './components/home/HeroSearch';
import PropertyMap from './components/home/PropertyMap';
import Link from 'next/link';
import Image from 'next/image';
import { getRentProperties, getSaleProperties } from './utils/api';

// Map API property data to the format the UI expects
// API returns { propInfoId, deposit, monthlyRent, dailyRent, rating, ... }
// If propertyInformation is nested, use it; otherwise use flat response with defaults
function mapApiProperty(item, index) {
  const info = item.propertyInformation || {};
  const hasNestedInfo = !!item.propertyInformation;

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

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

  // Status: 0=Available, 1=Booked, 2=Maintenance
  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`);

  return {
    id: item.id ?? index + 1,
    propInfoId: item.propInfoId,
    title: info.address || `عقار #${item.id || index + 1}`,
    description: info.description || '',
    type: propType,
    price: dailyPrice,
    priceUSD: dailyPrice,
    priceUnit: 'daily',
    location: {
      city: extractCity(info.address) || 'دمشق',
      district: info.address || '',
      address: info.address || '',
      lat: parseFloat(info.cordsX) || 0,
      lng: parseFloat(info.cordsY) || 0,
    },
    bedrooms: info.numberOfBedRooms || 0,
    bathrooms: info.numberOfBathRooms || 0,
    area: info.space || 0,
    features,
    images: ['/property-placeholder.jpg'],
    status,
    rating: item.rating || 4.5,
    isNew: false,
    allowedIdentities: ['syrian', 'passport'],
    priceDisplay: {
      daily: dailyPrice,
      monthly: monthlyPrice,
    },
    bookings: [],
    _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 '';
}

// Fallback dummy data
const FALLBACK_PROPERTIES = [
  {
    id: 1,
    title: 'فيلا فاخرة في المزة',
    description: 'فيلا فاخرة مع حديقة خاصة ومسبح في أفضل أحياء دمشق.',
    type: 'villa',
    price: 500000,
    priceUSD: 50,
    priceUnit: 'daily',
    location: { city: 'دمشق', district: 'المزة', address: 'شارع المزة - فيلات غربية', lat: 33.5138, lng: 36.2765 },
    bedrooms: 5, bathrooms: 4, area: 450,
    features: ['مسبح', 'حديقة خاصة', 'موقف سيارات', 'أمن 24/7', 'تدفئة مركزية', 'تكييف مركزي'],
    images: ['/villa1.jpg', '/villa2.jpg', '/villa3.jpg'],
    status: 'available', rating: 4.8, isNew: true,
    allowedIdentities: ['syrian', 'passport'],
    priceDisplay: { daily: 500000, monthly: 15000000 },
    bookings: [{ startDate: '2024-03-10', endDate: '2024-03-15' }, { startDate: '2024-03-20', endDate: '2024-03-25' }]
  },
  {
    id: 2,
    title: 'شقة حديثة في الشهباء',
    description: 'شقة عصرية في حي الشهباء الراقي بحلب.',
    type: 'apartment',
    price: 250000, priceUSD: 25, priceUnit: 'daily',
    location: { city: 'حلب', district: 'الشهباء', address: 'شارع النيل - بناء الرحاب', lat: 36.2021, lng: 37.1347 },
    bedrooms: 3, bathrooms: 2, area: 180,
    features: ['مطبخ مجهز', 'بلكونة', 'موقف سيارات', 'مصعد'],
    images: ['/apartment1.jpg', '/apartment2.jpg'],
    status: 'available', rating: 4.5, isNew: false,
    allowedIdentities: ['syrian'],
    priceDisplay: { daily: 250000, monthly: 7500000 },
    bookings: [{ startDate: '2024-03-05', endDate: '2024-03-08' }]
  },
  {
    id: 3,
    title: 'بيت عائلي في بابا عمرو',
    description: 'بيت واسع مناسب للعائلات في حمص.',
    type: 'house',
    price: 350000, priceUSD: 35, priceUnit: 'daily',
    location: { city: 'حمص', district: 'بابا عمرو', address: 'حي الزهور', lat: 34.7265, lng: 36.7186 },
    bedrooms: 4, bathrooms: 3, area: 300,
    features: ['حديقة كبيرة', 'موقف سيارات', 'مدفأة', 'كراج'],
    images: ['/house1.jpg'],
    status: 'booked', rating: 4.3, isNew: false,
    allowedIdentities: ['syrian', 'passport'],
    priceDisplay: { daily: 350000, monthly: 10500000 },
    bookings: []
  },
  {
    id: 4,
    title: 'شقة بجانب البحر',
    description: 'شقة رائعة مع إطلالة بحرية في اللاذقية.',
    type: 'apartment',
    price: 300000, priceUSD: 30, priceUnit: 'daily',
    location: { city: 'اللاذقية', district: 'الشاطئ الأزرق', address: 'الكورنيش الغربي', lat: 35.5306, lng: 35.7801 },
    bedrooms: 3, bathrooms: 2, area: 200,
    features: ['إطلالة بحرية', 'شرفة', 'تكييف', 'أمن'],
    images: ['/seaside1.jpg', '/seaside2.jpg', '/seaside3.jpg'],
    status: 'available', rating: 4.9, isNew: true,
    allowedIdentities: ['passport'],
    priceDisplay: { daily: 300000, monthly: 9000000 },
    bookings: []
  },
  {
    id: 5,
    title: 'فيلا في درعا',
    description: 'فيلا فاخرة في حي الأطباء بدرعا.',
    type: 'villa',
    price: 400000, priceUSD: 40, priceUnit: 'daily',
    location: { city: 'درعا', district: 'حي الأطباء', address: 'شارع الشفاء', lat: 32.6237, lng: 36.1016 },
    bedrooms: 4, bathrooms: 3, area: 350,
    features: ['حديقة مثمرة', 'أنظمة أمن', 'مسبح', 'كراج'],
    images: ['/villa4.jpg', '/villa5.jpg'],
    status: 'available', rating: 4.6, isNew: false,
    allowedIdentities: ['syrian', 'passport'],
    priceDisplay: { daily: 400000, monthly: 12000000 },
    bookings: []
  }
];

export default function HomePage() {
  const mapSectionRef = useRef(null);
  const [searchFilters, setSearchFilters] = useState(null);
  const [showMap, setShowMap] = useState(false);
  const [filteredProperties, setFilteredProperties] = useState([]);
  const [isScrolling, setIsScrolling] = useState(false);
  const [user, setUser] = useState(null);
  const [showUserMenu, setShowUserMenu] = useState(false);
  const menuRef = useRef(null);

  const [allProperties, setAllProperties] = useState(FALLBACK_PROPERTIES);
  const [loading, setLoading] = useState(true);

  // Fetch properties from API on mount
  useEffect(() => {
    const storedUser = localStorage.getItem('user');
    if (storedUser) {
      setUser(JSON.parse(storedUser));
    }

    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) {
          setAllProperties(mapped);
        }
        // If API returns empty, keep fallback
      } catch (err) {
        console.warn('Failed to fetch properties, using fallback data:', err);
        // keep fallback data
      } finally {
        setLoading(false);
      }
    }

    fetchProperties();
  }, []);

  useEffect(() => {
    const handleClickOutside = (event) => {
      if (menuRef.current && !menuRef.current.contains(event.target)) {
        setShowUserMenu(false);
      }
    };
    document.addEventListener('mousedown', handleClickOutside);
    return () => document.removeEventListener('mousedown', handleClickOutside);
  }, []);

  const logout = () => {
    localStorage.removeItem('user');
    setUser(null);
    setShowUserMenu(false);
  };

  const applyFilters = (filters) => {
    setSearchFilters(filters);

    const filtered = allProperties.filter(property => {
      if (filters.city && filters.city !== 'all' && property.location.city !== filters.city) {
        return false;
      }

      if (filters.propertyType && filters.propertyType !== 'all' && property.type !== filters.propertyType) {
        return false;
      }

      if (filters.priceRange && filters.priceRange !== 'all') {
        const priceUSD = property.priceUSD;
        switch (filters.priceRange) {
          case '0-500': if (priceUSD > 50) return false; break;
          case '500-1000': if (priceUSD < 51 || priceUSD > 100) return false; break;
          case '1000-2000': if (priceUSD < 101 || priceUSD > 200) return false; break;
          case '2000-3000': if (priceUSD < 201 || priceUSD > 300) return false; break;
          case '3000+': if (priceUSD < 301) return false; break;
        }
      }

      if (filters.identityType && property.allowedIdentities) {
        if (!property.allowedIdentities.includes(filters.identityType)) {
          return false;
        }
      }

      return true;
    });

    setFilteredProperties(filtered);

    if (!showMap) {
      setShowMap(true);

      setTimeout(() => {
        if (mapSectionRef.current) {
          setIsScrolling(true);
          mapSectionRef.current.scrollIntoView({
            behavior: 'smooth',
            block: 'center'
          });

          setTimeout(() => setIsScrolling(false), 1000);
        }
      }, 300);
    } else {
      if (mapSectionRef.current) {
        setIsScrolling(true);
        mapSectionRef.current.scrollIntoView({
          behavior: 'smooth',
          block: 'center'
        });
        setTimeout(() => setIsScrolling(false), 1000);
      }
    }
  };

  const resetSearch = () => {
    setShowMap(false);
    setSearchFilters(null);
    setFilteredProperties([]);
    window.scrollTo({
      top: 0,
      behavior: 'smooth'
    });
  };

  const getUserInitial = () => {
    if (user?.name) {
      return user.name.charAt(0).toUpperCase();
    }
    return null;
  };

  const isOwner = user?.role === 'owner';

  return (
    <div className="min-h-screen">
      <section className="relative min-h-screen flex items-center justify-center overflow-hidden">
        <div className="absolute inset-0 z-0">
          <motion.div
            className="absolute inset-0 bg-cover bg-center bg-no-repeat"
            style={{
              backgroundImage: 'url(/hero.jpg)',
            }}
            initial={{ scale: 1.1 }}
            animate={{ scale: 1 }}
            transition={{ duration: 1.5, ease: "easeOut" }}
          />
          <div className="absolute inset-0 bg-gradient-to-r from-black/70 via-black/60 to-black/50" />
        </div>
        <div className="relative z-10 container mx-auto px-4 sm:px-6 lg:px-8">
          <div className="max-w-6xl mx-auto">
            <motion.div
              className="text-center mb-12"
              initial="hidden"
              animate="visible"
              variants={{
                hidden: { opacity: 0 },
                visible: {
                  opacity: 1,
                  transition: { staggerChildren: 0.2 }
                }
              }}
            >
              <motion.h1
                className="text-3xl sm:text-4xl md:text-5xl lg:text-6xl font-bold text-white mb-6 leading-tight tracking-tight"
                variants={{
                  hidden: { opacity: 0, y: 20 },
                  visible: { opacity: 1, y: 0 }
                }}
              >
                إيجاد منزلك الجديد<br />
                <motion.span
                  className="text-amber-400"
                  animate={{
                    y: [0, -10, 0],
                  }}
                  transition={{
                    duration: 2,
                    repeat: Infinity,
                    ease: "easeInOut"
                  }}
                >
                  أصبح سهلاً
                </motion.span>
              </motion.h1>
              <motion.p
                className="text-base sm:text-lg text-gray-200 max-w-2xl mx-auto leading-relaxed"
                variants={{
                  hidden: { opacity: 0, y: 20 },
                  visible: { opacity: 1, y: 0 }
                }}
              >
                نوفر قوائم عقارات عالية الجودة لمساعدتك في إيجاد المنزل المثالي
              </motion.p>
            </motion.div>

            {!isOwner && <HeroSearch onSearch={applyFilters} />}

            {isOwner && (
              <motion.div
                initial={{ opacity: 0, y: 20 }}
                animate={{ opacity: 1, y: 0 }}
                transition={{ delay: 0.5 }}
                className="bg-white/10 backdrop-blur-lg rounded-2xl p-8 text-center border border-white/20"
              >
                <h2 className="text-2xl font-bold text-white mb-2">
                  مرحباً {user?.name}!
                </h2>
                <p className="text-gray-200 mb-4">
                  يمكنك إدارة عقاراتك من خلال لوحة التحكم الخاصة بك
                </p>
                <Link
                  href="/owner/properties"
                  className="inline-flex items-center gap-2 bg-amber-500 text-white px-6 py-3 rounded-xl font-medium hover:bg-amber-600 transition-colors"
                >
                  <Building className="w-5 h-5" />
                  إدارة عقاراتي
                </Link>
              </motion.div>
            )}
          </div>
        </div>

        {!showMap && !isOwner && (
          <motion.div
            className="absolute bottom-8 left-1/2 transform -translate-x-1/2 cursor-pointer"
            animate={{
              y: [0, 10, 0],
            }}
            transition={{
              duration: 1.5,
              repeat: Infinity,
              ease: "easeInOut"
            }}
            onClick={() => window.scrollTo({
              top: window.innerHeight,
              behavior: 'smooth'
            })}
          >
            <svg className="w-6 h-6 text-white" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M19 14l-7 7m0 0l-7-7m7 7V3" />
            </svg>
          </motion.div>
        )}
      </section>

      {!isOwner && (
        <AnimatePresence mode="wait">
          {showMap && (
            <motion.section
              ref={mapSectionRef}
              initial={{ opacity: 0, y: 50 }}
              animate={{ opacity: 1, y: 0 }}
              exit={{ opacity: 0, y: -50 }}
              transition={{
                type: "spring",
                damping: 20,
                stiffness: 100,
                duration: 0.6
              }}
              className="py-12 bg-gray-50 relative"
            >
              {isScrolling && (
                <motion.div
                  className="absolute top-0 left-0 right-0 h-1 bg-amber-500 z-10"
                  initial={{ scaleX: 0 }}
                  animate={{ scaleX: 1 }}
                  transition={{ duration: 1, ease: "easeInOut" }}
                />
              )}

              <div className="container mx-auto px-4">
                <motion.div
                  initial={{ opacity: 0, y: 20 }}
                  animate={{ opacity: 1, y: 0 }}
                  transition={{ delay: 0.2 }}
                  className="text-center mb-8"
                >
                  <div className="flex items-center justify-center gap-4 mb-2">
                    <h2 className="text-3xl font-bold text-gray-900">
                      {filteredProperties.length > 0 ? 'نتائج البحث' : 'لا توجد نتائج'}
                    </h2>
                    <motion.button
                      onClick={resetSearch}
                      className="px-4 py-2 bg-white border border-gray-300 rounded-full text-sm font-medium text-gray-700 hover:bg-gray-50 shadow-sm flex items-center gap-2"
                      whileHover={{ scale: 1.05 }}
                      whileTap={{ scale: 0.95 }}
                    >
                      <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M10 19l-7-7m0 0l7-7m-7 7h18" />
                      </svg>
                      بحث جديد
                    </motion.button>
                  </div>

                  {filteredProperties.length > 0 ? (
                    <p className="text-gray-600">
                      تم العثور على {filteredProperties.length} عقار يطابق معايير البحث
                    </p>
                  ) : (
                    <p className="text-gray-600">
                      لا توجد عقارات تطابق معايير البحث. جرب تغيير الفلاتر.
                    </p>
                  )}
                </motion.div>

                <motion.div
                  className="bg-white rounded-2xl shadow-xl overflow-hidden border border-gray-200"
                  initial={{ scale: 0.95, opacity: 0 }}
                  animate={{ scale: 1, opacity: 1 }}
                  transition={{ delay: 0.3, type: "spring" }}
                >
                  {filteredProperties.length > 0 ? (
                    <PropertyMap
                      properties={filteredProperties}
                      userIdentity={searchFilters?.identityType || 'syrian'}
                    />
                  ) : (
                    <div className="h-[400px] flex flex-col items-center justify-center bg-gray-50">
                      <div className="w-24 h-24 bg-gray-200 rounded-full flex items-center justify-center mb-4">
                        <svg className="w-12 h-12 text-gray-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M9.172 16.172a4 4 0 015.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z" />
                        </svg>
                      </div>
                      <h3 className="text-xl font-bold text-gray-700 mb-2">لا توجد نتائج</h3>
                      <p className="text-gray-500">حاول تغيير معايير البحث</p>
                    </div>
                  )}
                </motion.div>

                {filteredProperties.length > 0 && searchFilters && (
                  <motion.div
                    initial={{ opacity: 0, y: 20 }}
                    animate={{ opacity: 1, y: 0 }}
                    transition={{ delay: 0.5 }}
                    className="mt-6 flex flex-wrap gap-3 justify-center"
                  >
                    <div className="bg-white px-4 py-2 rounded-full shadow-sm border border-gray-200 text-sm">
                      <span className="text-gray-600">المدينة: </span>
                      <span className="font-bold text-gray-900">
                        {searchFilters.city === 'all' ? 'جميع المدن' : searchFilters.city}
                      </span>
                    </div>
                    <div className="bg-white px-4 py-2 rounded-full shadow-sm border border-gray-200 text-sm">
                      <span className="text-gray-600">نوع العقار: </span>
                      <span className="font-bold text-gray-900">
                        {searchFilters.propertyType === 'all' ? 'الكل' :
                          searchFilters.propertyType === 'apartment' ? 'شقة' :
                            searchFilters.propertyType === 'villa' ? 'فيلا' : 'بيت'}
                      </span>
                    </div>
                    <div className="bg-white px-4 py-2 rounded-full shadow-sm border border-gray-200 text-sm">
                      <span className="text-gray-600">نطاق السعر: </span>
                      <span className="font-bold text-gray-900">
                        {searchFilters.priceRange === 'all' ? 'جميع الأسعار' :
                          searchFilters.priceRange === '0-500' ? 'أقل من 50$' :
                            searchFilters.priceRange === '500-1000' ? '50$ - 100$' :
                              searchFilters.priceRange === '1000-2000' ? '100$ - 200$' :
                                searchFilters.priceRange === '2000-3000' ? '200$ - 300$' : 'أكثر من 300$'}
                      </span>
                    </div>
                  </motion.div>
                )}
              </div>
            </motion.section>
          )}
        </AnimatePresence>
      )}

      <section className="py-20 bg-gradient-to-b from-white to-gray-50">
        <div className="container mx-auto px-4">
          <motion.div
            className="text-center mb-12"
            initial={{ opacity: 0, y: 20 }}
            whileInView={{ opacity: 1, y: 0 }}
            viewport={{ once: true }}
            transition={{ duration: 0.6 }}
          >
            <h2 className="text-3xl md:text-4xl font-bold text-gray-900 mb-4 tracking-tight">
              لماذا تختار سويت هوم؟
            </h2>
            <p className="text-gray-600 max-w-2xl mx-auto text-lg">
              نجعل عملية إيجاد منزلك المثالي سهلة وسريعة
            </p>
          </motion.div>

          <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
            <motion.div
              className="group bg-white p-6 rounded-xl shadow-sm hover:shadow-md transition-all duration-300 border border-gray-100"
              initial={{ opacity: 0, y: 20 }}
              whileInView={{ opacity: 1, y: 0 }}
              viewport={{ once: true }}
              transition={{ duration: 0.5, delay: 0.1 }}
              whileHover={{ y: -4 }}
            >
              <div className="flex items-center gap-4 mb-4">
                <div className="w-12 h-12 bg-amber-100 rounded-xl flex items-center justify-center group-hover:bg-amber-200 transition-colors duration-300">
                  <ShieldCheck className="w-6 h-6 text-amber-600" />
                </div>
                <h3 className="text-lg font-bold text-gray-900">
                  قوائم موثوقة
                </h3>
              </div>

              <p className="text-gray-600 text-sm leading-relaxed">
                كل عقار يتم التحقق منه بدقة لضمان الدقة والجودة.
              </p>
            </motion.div>

            <motion.div
              className="group bg-white p-6 rounded-xl shadow-sm hover:shadow-md transition-all duration-300 border border-gray-100"
              initial={{ opacity: 0, y: 20 }}
              whileInView={{ opacity: 1, y: 0 }}
              viewport={{ once: true }}
              transition={{ duration: 0.5, delay: 0.2 }}
              whileHover={{ y: -4 }}
            >
              <div className="flex items-center gap-4 mb-4">
                <div className="w-12 h-12 bg-blue-100 rounded-xl flex items-center justify-center group-hover:bg-blue-200 transition-colors duration-300">
                  <Lock className="w-6 h-6 text-blue-600" />
                </div>
                <h3 className="text-lg font-bold text-gray-900">
                  عمليات آمنة
                </h3>
              </div>

              <p className="text-gray-600 text-sm leading-relaxed">
                سلامتك هي أولويتنا. نوفر معاملات آمنة ونحمي معلوماتك الشخصية.
              </p>
            </motion.div>

            <motion.div
              className="group bg-white p-6 rounded-xl shadow-sm hover:shadow-md transition-all duration-300 border border-gray-100"
              initial={{ opacity: 0, y: 20 }}
              whileInView={{ opacity: 1, y: 0 }}
              viewport={{ once: true }}
              transition={{ duration: 0.5, delay: 0.3 }}
              whileHover={{ y: -4 }}
            >
              <div className="flex items-center gap-4 mb-4">
                <div className="w-12 h-12 bg-green-100 rounded-xl flex items-center justify-center group-hover:bg-green-200 transition-colors duration-300">
                  <Zap className="w-6 h-6 text-green-600" />
                </div>
                <h3 className="text-lg font-bold text-gray-900">
                  نتائج سريعة
                </h3>
              </div>

              <p className="text-gray-600 text-sm leading-relaxed">
                اعثر على منزلك المثالي في دقائق باستخدام خوارزميات البحث والمطابقة المتقدمة لدينا.
              </p>
            </motion.div>
          </div>
        </div>
      </section>
    </div>
  );
}