import React, { useEffect, useState } from 'react';
import { Plus, Search, Edit, Trash2, X, Tag } from 'lucide-react';
import promotionService, { Promotion, CreatePromotionData, UpdatePromotionData } from '../../features/loyalty/services/promotionService';
import { getRoomTypes } from '../../features/rooms/services/roomService';
import { toast } from 'react-toastify';
import Loading from '../../shared/components/Loading';
import Pagination from '../../shared/components/Pagination';
import { useFormatCurrency } from '../../features/payments/hooks/useFormatCurrency';
import { useCurrency } from '../../features/payments/contexts/CurrencyContext';
import { getUserFriendlyError } from '../../shared/utils/errorSanitizer';

interface RoomType {
  id: number;
  name: string;
}

const PromotionManagementPage: React.FC = () => {
  const { currency } = useCurrency();
  const { formatCurrency } = useFormatCurrency();
  const [promotions, setPromotions] = useState<Promotion[]>([]);
  const [loading, setLoading] = useState(true);
  const [showModal, setShowModal] = useState(false);
  const [editingPromotion, setEditingPromotion] = useState<Promotion | null>(null);
  const [filters, setFilters] = useState({
    search: '',
    status: '',
    type: '',
  });
  const [currentPage, setCurrentPage] = useState(1);
  const [totalPages, setTotalPages] = useState(1);
  const [totalItems, setTotalItems] = useState(0);
  const itemsPerPage = 5;

  const [formData, setFormData] = useState({
    code: '',
    name: '',
    description: '',
    discount_type: 'percentage' as 'percentage' | 'fixed',
    discount_value: 0,
    min_booking_amount: 0,
    max_discount_amount: 0,
    min_stay_days: 0,
    max_stay_days: 0,
    advance_booking_days: 0,
    max_advance_booking_days: 0,
    allowed_check_in_days: [] as number[],
    allowed_check_out_days: [] as number[],
    allowed_room_type_ids: [] as number[],
    excluded_room_type_ids: [] as number[],
    min_guests: 0,
    max_guests: 0,
    first_time_customer_only: false,
    repeat_customer_only: false,
    blackout_dates: [] as string[],
    start_date: '',
    end_date: '',
    usage_limit: 0,
    status: 'active' as 'active' | 'inactive' | 'expired',
  });
  
  const [roomTypes, setRoomTypes] = useState<RoomType[]>([]);
  const [_loadingRoomTypes, setLoadingRoomTypes] = useState(false);

  useEffect(() => {
    setCurrentPage(1);
  }, [filters]);

  useEffect(() => {
    fetchPromotions();
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [filters, currentPage]);

  useEffect(() => {
    fetchRoomTypes();
  }, []);

  const fetchRoomTypes = async () => {
    try {
      setLoadingRoomTypes(true);
      const response = await getRoomTypes();
      if (response.success && response.data.room_types) {
        setRoomTypes(response.data.room_types);
      }
    } catch (error: unknown) {
      console.error('Failed to fetch room types:', error);
    } finally {
      setLoadingRoomTypes(false);
    }
  };

  const fetchPromotions = async () => {
    try {
      setLoading(true);
      const response = await promotionService.getPromotions({
        ...filters,
        page: currentPage,
        limit: itemsPerPage,
      });
      setPromotions(response.data.promotions);
      if (response.data.pagination) {
        setTotalPages(response.data.pagination.totalPages);
        setTotalItems(response.data.pagination.total);
      }
    } catch (error: unknown) {
      toast.error(getUserFriendlyError(error) || 'Unable to load promotions list');
    } finally {
      setLoading(false);
    }
  };

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    try {
      // Prepare data, converting empty arrays to undefined and 0 values to undefined for optional fields
      const submitData: CreatePromotionData | UpdatePromotionData = {
        ...formData,
        min_stay_days: formData.min_stay_days || undefined,
        max_stay_days: formData.max_stay_days || undefined,
        advance_booking_days: formData.advance_booking_days || undefined,
        max_advance_booking_days: formData.max_advance_booking_days || undefined,
        min_guests: formData.min_guests || undefined,
        max_guests: formData.max_guests || undefined,
        allowed_check_in_days: formData.allowed_check_in_days?.length ? formData.allowed_check_in_days : undefined,
        allowed_check_out_days: formData.allowed_check_out_days?.length ? formData.allowed_check_out_days : undefined,
        allowed_room_type_ids: formData.allowed_room_type_ids?.length ? formData.allowed_room_type_ids : undefined,
        excluded_room_type_ids: formData.excluded_room_type_ids?.length ? formData.excluded_room_type_ids : undefined,
        blackout_dates: formData.blackout_dates?.length ? formData.blackout_dates : undefined,
        min_booking_amount: formData.min_booking_amount || undefined,
        max_discount_amount: formData.max_discount_amount || undefined,
        usage_limit: formData.usage_limit || undefined,
      };
      
      if (editingPromotion) {
        await promotionService.updatePromotion(editingPromotion.id, submitData);
        toast.success('Promotion updated successfully');
      } else {
        await promotionService.createPromotion(submitData);
        toast.success('Promotion added successfully');
      }
      setShowModal(false);
      resetForm();
      fetchPromotions();
    } catch (error: unknown) {
      toast.error(getUserFriendlyError(error) || 'An error occurred');
    }
  };

  const handleEdit = (promotion: Promotion) => {
    setEditingPromotion(promotion);
    setFormData({
      code: promotion.code,
      name: promotion.name,
      description: promotion.description || '',
      discount_type: promotion.discount_type,
      discount_value: promotion.discount_value,
      min_booking_amount: promotion.min_booking_amount || 0,
      max_discount_amount: promotion.max_discount_amount || 0,
      min_stay_days: promotion.min_stay_days || 0,
      max_stay_days: promotion.max_stay_days || 0,
      advance_booking_days: promotion.advance_booking_days || 0,
      max_advance_booking_days: promotion.max_advance_booking_days || 0,
      allowed_check_in_days: promotion.allowed_check_in_days || [],
      allowed_check_out_days: promotion.allowed_check_out_days || [],
      allowed_room_type_ids: promotion.allowed_room_type_ids || [],
      excluded_room_type_ids: promotion.excluded_room_type_ids || [],
      min_guests: promotion.min_guests || 0,
      max_guests: promotion.max_guests || 0,
      first_time_customer_only: promotion.first_time_customer_only || false,
      repeat_customer_only: promotion.repeat_customer_only || false,
      blackout_dates: promotion.blackout_dates || [],
      start_date: promotion.start_date?.split('T')[0] || '',
      end_date: promotion.end_date?.split('T')[0] || '',
      usage_limit: promotion.usage_limit || 0,
      status: promotion.status,
    });
    setShowModal(true);
  };

  const handleDelete = async (id: number) => {
    if (!window.confirm('Are you sure you want to delete this promotion?')) return;
    
    try {
      await promotionService.deletePromotion(id);
      toast.success('Promotion deleted successfully');
      fetchPromotions();
    } catch (error: unknown) {
      toast.error(getUserFriendlyError(error) || 'Unable to delete promotion');
    }
  };

  const resetForm = () => {
    setEditingPromotion(null);
    setFormData({
      code: '',
      name: '',
      description: '',
      discount_type: 'percentage',
      discount_value: 0,
      min_booking_amount: 0,
      max_discount_amount: 0,
      min_stay_days: 0,
      max_stay_days: 0,
      advance_booking_days: 0,
      max_advance_booking_days: 0,
      allowed_check_in_days: [],
      allowed_check_out_days: [],
      allowed_room_type_ids: [],
      excluded_room_type_ids: [],
      min_guests: 0,
      max_guests: 0,
      first_time_customer_only: false,
      repeat_customer_only: false,
      blackout_dates: [],
      start_date: '',
      end_date: '',
      usage_limit: 0,
      status: 'active',
    });
  };

  const getStatusBadge = (status: string) => {
    const badges: Record<string, { bg: string; text: string; label: string; border: string }> = {
      active: { 
        bg: 'bg-gradient-to-r from-emerald-50 to-green-50', 
        text: 'text-emerald-800', 
        label: 'Active',
        border: 'border-emerald-200'
      },
      inactive: { 
        bg: 'bg-gradient-to-r from-slate-50 to-gray-50', 
        text: 'text-slate-700', 
        label: 'Inactive',
        border: 'border-slate-200'
      },
      expired: {
        bg: 'bg-gradient-to-r from-rose-50 to-red-50',
        text: 'text-rose-800',
        label: 'Expired',
        border: 'border-rose-200'
      },
    };
    const badge = badges[status] || badges.active;
    return (
      <span className={`px-4 py-1.5 rounded-full text-xs font-semibold border shadow-sm ${badge.bg} ${badge.text} ${badge.border}`}>
        {badge.label}
      </span>
    );
  };

  if (loading) {
    return <Loading />;
  }

  return (
    <div className="space-y-8 bg-gradient-to-br from-slate-50 via-white to-slate-50 min-h-screen -m-6 p-8">
      <div className="flex justify-between items-center animate-fade-in">
        <div>
          <div className="flex items-center gap-3 mb-2">
            <div className="h-1 w-16 bg-gradient-to-r from-amber-400 to-amber-600 rounded-full"></div>
            <h1 className="text-4xl font-bold bg-gradient-to-r from-slate-900 via-slate-800 to-slate-900 bg-clip-text text-transparent tracking-tight">
              Promotion Management
            </h1>
          </div>
          <p className="text-slate-600 mt-3 text-lg font-light">Manage discount codes and promotion programs</p>
        </div>
        <button
          onClick={() => {
            resetForm();
            setShowModal(true);
          }}
          className="flex items-center gap-2 px-6 py-3 bg-gradient-to-r from-amber-500 to-amber-600 text-white rounded-xl font-semibold hover:from-amber-600 hover:to-amber-700 transition-all duration-200 shadow-lg hover:shadow-xl"
        >
          <Plus className="w-5 h-5" />
          Add Promotion
        </button>
      </div>

      <div className="bg-white/80 backdrop-blur-sm rounded-2xl shadow-xl border border-slate-200/60 p-6 animate-fade-in" style={{ animationDelay: '0.1s' }}>
        <div className="grid grid-cols-1 md:grid-cols-4 gap-5">
          <div className="relative group">
            <Search className="absolute left-4 top-1/2 transform -translate-y-1/2 text-slate-400 w-5 h-5 group-focus-within:text-amber-500 transition-colors" />
            <input
              type="text"
              placeholder="Search by code or name..."
              value={filters.search}
              onChange={(e) => setFilters({ ...filters, search: e.target.value })}
              className="w-full pl-12 pr-4 py-3.5 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 placeholder-slate-400 font-medium shadow-sm hover:shadow-md"
            />
          </div>
          <select
            value={filters.type}
            onChange={(e) => setFilters({ ...filters, type: e.target.value })}
            className="px-4 py-3.5 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm hover:shadow-md cursor-pointer"
          >
            <option value="">All Types</option>
            <option value="percentage">Percentage</option>
            <option value="fixed">Fixed Amount</option>
          </select>
          <select
            value={filters.status}
            onChange={(e) => setFilters({ ...filters, status: e.target.value })}
            className="px-4 py-3.5 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm hover:shadow-md cursor-pointer"
          >
            <option value="">All Statuses</option>
            <option value="active">Active</option>
            <option value="inactive">Inactive</option>
          </select>
        </div>
      </div>

      <div className="bg-white/80 backdrop-blur-sm rounded-2xl shadow-xl border border-slate-200/60 overflow-hidden animate-fade-in" style={{ animationDelay: '0.2s' }}>
        <div className="overflow-x-auto">
          <table className="w-full">
            <thead>
              <tr className="bg-gradient-to-r from-slate-900 via-slate-800 to-slate-900">
                <th className="px-8 py-5 text-left text-xs font-bold text-amber-100 uppercase tracking-wider border-b border-slate-700">Code</th>
                <th className="px-8 py-5 text-left text-xs font-bold text-amber-100 uppercase tracking-wider border-b border-slate-700">Program Name</th>
                <th className="px-8 py-5 text-left text-xs font-bold text-amber-100 uppercase tracking-wider border-b border-slate-700">Value</th>
                <th className="px-8 py-5 text-left text-xs font-bold text-amber-100 uppercase tracking-wider border-b border-slate-700">Period</th>
                <th className="px-8 py-5 text-left text-xs font-bold text-amber-100 uppercase tracking-wider border-b border-slate-700">Used</th>
                <th className="px-8 py-5 text-left text-xs font-bold text-amber-100 uppercase tracking-wider border-b border-slate-700">Status</th>
                <th className="px-8 py-5 text-right text-xs font-bold text-amber-100 uppercase tracking-wider border-b border-slate-700">Actions</th>
              </tr>
            </thead>
            <tbody className="bg-white divide-y divide-slate-100">
              {promotions.map((promotion, index) => (
                <tr 
                  key={promotion.id} 
                  className="hover:bg-gradient-to-r hover:from-amber-50/30 hover:to-yellow-50/30 transition-all duration-200 group border-b border-slate-100"
                  style={{ animationDelay: `${index * 0.05}s` }}
                >
                  <td className="px-8 py-5 whitespace-nowrap">
                    <div className="flex items-center gap-3">
                      <div className="p-2 bg-gradient-to-br from-amber-100 to-amber-200 rounded-lg">
                        <Tag className="w-4 h-4 text-amber-600" />
                      </div>
                      <span className="text-sm font-mono font-bold bg-gradient-to-r from-amber-600 to-amber-700 bg-clip-text text-transparent">{promotion.code}</span>
                    </div>
                  </td>
                  <td className="px-8 py-5">
                    <div className="text-sm font-semibold text-slate-900">{promotion.name}</div>
                    <div className="text-xs text-slate-500 mt-0.5">{promotion.description}</div>
                  </td>
                  <td className="px-8 py-5 whitespace-nowrap">
                    <div className="text-sm font-bold bg-gradient-to-r from-emerald-600 to-emerald-700 bg-clip-text text-transparent">
                      {promotion.discount_type === 'percentage' 
                        ? `${promotion.discount_value}%` 
                        : formatCurrency(promotion.discount_value)}
                    </div>
                  </td>
                  <td className="px-8 py-5 whitespace-nowrap">
                    <div className="text-xs text-slate-600">
                      {promotion.start_date ? new Date(promotion.start_date).toLocaleDateString('en-US', { month: 'short', day: 'numeric' }) : 'N/A'}
                      <span className="text-slate-400 mx-1">→</span>
                      {promotion.end_date ? new Date(promotion.end_date).toLocaleDateString('en-US', { month: 'short', day: 'numeric' }) : 'N/A'}
                    </div>
                  </td>
                  <td className="px-8 py-5 whitespace-nowrap">
                    <div className="text-sm font-medium text-slate-700">
                      <span className="text-amber-600 font-semibold">{promotion.used_count || 0}</span>
                      <span className="text-slate-400 mx-1">/</span>
                      <span className="text-slate-600">{promotion.usage_limit || '∞'}</span>
                    </div>
                  </td>
                  <td className="px-8 py-5 whitespace-nowrap">
                    {getStatusBadge(promotion.status)}
                  </td>
                  <td className="px-8 py-5 whitespace-nowrap text-right">
                    <div className="flex items-center justify-end gap-2">
                      <button
                        onClick={() => handleEdit(promotion)}
                        className="p-2 rounded-lg text-blue-600 hover:text-blue-700 hover:bg-blue-50 transition-all duration-200 shadow-sm hover:shadow-md border border-blue-200 hover:border-blue-300"
                        title="Edit"
                      >
                        <Edit className="w-5 h-5" />
                      </button>
                      <button
                        onClick={() => handleDelete(promotion.id)}
                        className="p-2 rounded-lg text-rose-600 hover:text-rose-700 hover:bg-rose-50 transition-all duration-200 shadow-sm hover:shadow-md border border-rose-200 hover:border-rose-300"
                        title="Delete"
                      >
                        <Trash2 className="w-5 h-5" />
                      </button>
                    </div>
                  </td>
                </tr>
              ))}
            </tbody>
          </table>
        </div>
        <Pagination
          currentPage={currentPage}
          totalPages={totalPages}
          onPageChange={setCurrentPage}
          totalItems={totalItems}
          itemsPerPage={itemsPerPage}
        />
      </div>

      {showModal && (
        <div className="fixed inset-0 bg-black/70 backdrop-blur-md z-50 overflow-y-auto p-3 sm:p-4 animate-fade-in" onClick={(e) => e.target === e.currentTarget && setShowModal(false)}>
          <div className="min-h-full flex items-center justify-center py-4 sm:py-8">
            <div className="bg-white rounded-2xl sm:rounded-3xl shadow-2xl max-w-5xl w-full my-8 flex flex-col border border-slate-200 animate-scale-in" style={{ maxHeight: 'calc(100vh - 2rem)' }} onClick={(e) => e.stopPropagation()}>
              <div className="bg-gradient-to-r from-slate-900 via-slate-800 to-slate-900 px-4 sm:px-6 md:px-8 py-4 sm:py-5 md:py-6 border-b border-slate-700 flex-shrink-0">
                <div className="flex justify-between items-center">
                  <div>
                    <h2 className="text-xl sm:text-2xl md:text-3xl font-bold text-amber-100 mb-1">
                      {editingPromotion ? 'Update Promotion' : 'Add New Promotion'}
                    </h2>
                    <p className="text-amber-200/80 text-xs sm:text-sm font-light">
                      {editingPromotion ? 'Modify promotion details' : 'Create a new promotion program'}
                    </p>
                  </div>
                  <button 
                    onClick={() => setShowModal(false)}
                    className="w-9 h-9 sm:w-10 sm:h-10 flex items-center justify-center rounded-xl text-amber-100 hover:text-white hover:bg-slate-700/50 transition-all duration-200 border border-slate-600 hover:border-amber-400"
                  >
                    <X className="w-5 h-5 sm:w-6 sm:h-6" />
                  </button>
                </div>
              </div>
              
              <div className="flex-1 overflow-y-auto" style={{ minHeight: 0, maxHeight: 'calc(100vh - 180px)' }}>
                <form onSubmit={handleSubmit} className="p-4 sm:p-6 md:p-8 space-y-4 sm:space-y-5 md:space-y-6 pb-8">
                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Code <span className="text-rose-500">*</span>
                    </label>
                    <input
                      type="text"
                      value={formData.code}
                      onChange={(e) => setFormData({ ...formData, code: e.target.value.toUpperCase() })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm font-mono"
                      placeholder="e.g: SUMMER2024"
                      required
                    />
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Program Name <span className="text-rose-500">*</span>
                    </label>
                    <input
                      type="text"
                      value={formData.name}
                      onChange={(e) => setFormData({ ...formData, name: e.target.value })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      placeholder="e.g: Summer Sale"
                      required
                    />
                  </div>
                </div>

                <div>
                  <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                    Description
                  </label>
                  <textarea
                    value={formData.description}
                    onChange={(e) => setFormData({ ...formData, description: e.target.value })}
                    className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                    rows={3}
                    placeholder="Detailed description of the program..."
                  />
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Discount Type <span className="text-rose-500">*</span>
                    </label>
                    <select
                      value={formData.discount_type}
                      onChange={(e) => setFormData({ ...formData, discount_type: e.target.value as 'percentage' | 'fixed' })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm cursor-pointer"
                    >
                      <option value="percentage">Percentage (%)</option>
                      <option value="fixed">Fixed Amount ({currency})</option>
                    </select>
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Discount Value <span className="text-rose-500">*</span>
                    </label>
                    <input
                      type="number"
                      value={formData.discount_value}
                      onChange={(e) => setFormData({ ...formData, discount_value: parseFloat(e.target.value) })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="0"
                      max={formData.discount_type === 'percentage' ? 100 : undefined}
                      required
                    />
                  </div>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Minimum Order Value ({currency})
                    </label>
                    <input
                      type="number"
                      value={formData.min_booking_amount}
                      onChange={(e) => setFormData({ ...formData, min_booking_amount: parseFloat(e.target.value) })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="0"
                    />
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Maximum Discount ({currency})
                    </label>
                    <input
                      type="number"
                      value={formData.max_discount_amount}
                      onChange={(e) => setFormData({ ...formData, max_discount_amount: parseFloat(e.target.value) })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="0"
                    />
                  </div>
                </div>

                {/* Enterprise Booking Conditions Section */}
                <div className="border-t-2 border-amber-200 pt-6 mt-6">
                  <h3 className="text-lg font-bold text-slate-900 mb-4 flex items-center gap-2">
                    <div className="h-1 w-8 bg-gradient-to-r from-amber-400 to-amber-600 rounded-full"></div>
                    Enterprise Booking Conditions
                  </h3>
                  <p className="text-sm text-slate-600 mb-6">Configure advanced conditions for when this promotion applies</p>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Minimum Stay (nights)
                    </label>
                    <input
                      type="number"
                      value={formData.min_stay_days || ''}
                      onChange={(e) => setFormData({ ...formData, min_stay_days: parseInt(e.target.value) || 0 })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="0"
                      placeholder="0 = no minimum"
                    />
                    <p className="text-xs text-slate-500 mt-1">Minimum number of nights required for booking</p>
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Advance Booking (days)
                    </label>
                    <input
                      type="number"
                      value={formData.advance_booking_days || ''}
                      onChange={(e) => setFormData({ ...formData, advance_booking_days: parseInt(e.target.value) || 0 })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="0"
                      placeholder="0 = no requirement"
                    />
                    <p className="text-xs text-slate-500 mt-1">Minimum days in advance the booking must be made</p>
                  </div>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Maximum Stay (nights)
                    </label>
                    <input
                      type="number"
                      value={formData.max_stay_days || ''}
                      onChange={(e) => setFormData({ ...formData, max_stay_days: parseInt(e.target.value) || 0 })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="0"
                      placeholder="0 = no maximum"
                    />
                    <p className="text-xs text-slate-500 mt-1">Maximum number of nights allowed for booking</p>
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Max Advance Booking (days)
                    </label>
                    <input
                      type="number"
                      value={formData.max_advance_booking_days || ''}
                      onChange={(e) => setFormData({ ...formData, max_advance_booking_days: parseInt(e.target.value) || 0 })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="0"
                      placeholder="0 = no maximum"
                    />
                    <p className="text-xs text-slate-500 mt-1">Maximum days in advance the booking can be made</p>
                  </div>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Allowed Check-in Days
                    </label>
                    <div className="grid grid-cols-7 gap-2">
                      {['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'].map((day, index) => (
                        <label key={day} className="flex items-center gap-2 cursor-pointer">
                          <input
                            type="checkbox"
                            checked={formData.allowed_check_in_days?.includes(index) || false}
                            onChange={(e) => {
                              const current = formData.allowed_check_in_days || [];
                              if (e.target.checked) {
                                setFormData({ ...formData, allowed_check_in_days: [...current, index] });
                              } else {
                                setFormData({ ...formData, allowed_check_in_days: current.filter(d => d !== index) });
                              }
                            }}
                            className="w-4 h-4 text-amber-600 border-slate-300 rounded focus:ring-amber-500"
                          />
                          <span className="text-xs text-slate-700">{day}</span>
                        </label>
                      ))}
                    </div>
                    <p className="text-xs text-slate-500 mt-1">Leave empty to allow all days</p>
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Allowed Check-out Days
                    </label>
                    <div className="grid grid-cols-7 gap-2">
                      {['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'].map((day, index) => (
                        <label key={day} className="flex items-center gap-2 cursor-pointer">
                          <input
                            type="checkbox"
                            checked={formData.allowed_check_out_days?.includes(index) || false}
                            onChange={(e) => {
                              const current = formData.allowed_check_out_days || [];
                              if (e.target.checked) {
                                setFormData({ ...formData, allowed_check_out_days: [...current, index] });
                              } else {
                                setFormData({ ...formData, allowed_check_out_days: current.filter(d => d !== index) });
                              }
                            }}
                            className="w-4 h-4 text-amber-600 border-slate-300 rounded focus:ring-amber-500"
                          />
                          <span className="text-xs text-slate-700">{day}</span>
                        </label>
                      ))}
                    </div>
                    <p className="text-xs text-slate-500 mt-1">Leave empty to allow all days</p>
                  </div>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Allowed Room Types
                    </label>
                    <select
                      multiple
                      value={formData.allowed_room_type_ids?.map(String) || []}
                      onChange={(e) => {
                        const selected = Array.from(e.target.selectedOptions, option => parseInt(option.value));
                        setFormData({ ...formData, allowed_room_type_ids: selected });
                      }}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      size={4}
                    >
                      {roomTypes.map(rt => (
                        <option key={rt.id} value={rt.id}>{rt.name}</option>
                      ))}
                    </select>
                    <p className="text-xs text-slate-500 mt-1">Hold Ctrl/Cmd to select multiple. Leave empty to allow all room types.</p>
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Excluded Room Types
                    </label>
                    <select
                      multiple
                      value={formData.excluded_room_type_ids?.map(String) || []}
                      onChange={(e) => {
                        const selected = Array.from(e.target.selectedOptions, option => parseInt(option.value));
                        setFormData({ ...formData, excluded_room_type_ids: selected });
                      }}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      size={4}
                    >
                      {roomTypes.map(rt => (
                        <option key={rt.id} value={rt.id}>{rt.name}</option>
                      ))}
                    </select>
                    <p className="text-xs text-slate-500 mt-1">Hold Ctrl/Cmd to select multiple. These room types cannot use this promotion.</p>
                  </div>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Minimum Guests
                    </label>
                    <input
                      type="number"
                      value={formData.min_guests || ''}
                      onChange={(e) => setFormData({ ...formData, min_guests: parseInt(e.target.value) || 0 })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="1"
                      placeholder="0 = no minimum"
                    />
                    <p className="text-xs text-slate-500 mt-1">Minimum number of guests required</p>
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Maximum Guests
                    </label>
                    <input
                      type="number"
                      value={formData.max_guests || ''}
                      onChange={(e) => setFormData({ ...formData, max_guests: parseInt(e.target.value) || 0 })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="1"
                      placeholder="0 = no maximum"
                    />
                    <p className="text-xs text-slate-500 mt-1">Maximum number of guests allowed</p>
                  </div>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="flex items-center gap-3 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={formData.first_time_customer_only || false}
                        onChange={(e) => setFormData({ ...formData, first_time_customer_only: e.target.checked, repeat_customer_only: e.target.checked ? false : formData.repeat_customer_only })}
                        className="w-5 h-5 text-amber-600 border-slate-300 rounded focus:ring-amber-500"
                      />
                      <span className="text-sm font-semibold text-slate-700">First-Time Customer Only</span>
                    </label>
                    <p className="text-xs text-slate-500 mt-1 ml-8">Only available to first-time customers</p>
                  </div>
                  <div>
                    <label className="flex items-center gap-3 cursor-pointer">
                      <input
                        type="checkbox"
                        checked={formData.repeat_customer_only || false}
                        onChange={(e) => setFormData({ ...formData, repeat_customer_only: e.target.checked, first_time_customer_only: e.target.checked ? false : formData.first_time_customer_only })}
                        className="w-5 h-5 text-amber-600 border-slate-300 rounded focus:ring-amber-500"
                      />
                      <span className="text-sm font-semibold text-slate-700">Repeat Customer Only</span>
                    </label>
                    <p className="text-xs text-slate-500 mt-1 ml-8">Only available to returning customers</p>
                  </div>
                </div>

                <div>
                  <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                    Blackout Dates
                  </label>
                  <textarea
                    value={formData.blackout_dates?.join('\n') || ''}
                    onChange={(e) => {
                      const dates = e.target.value.split('\n').filter(d => d.trim()).map(d => d.trim());
                      setFormData({ ...formData, blackout_dates: dates });
                    }}
                    className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                    rows={3}
                    placeholder="Enter dates (one per line) in YYYY-MM-DD format. Example: 2024-12-25"
                  />
                  <p className="text-xs text-slate-500 mt-1">Dates when promotion doesn't apply. One date per line (YYYY-MM-DD format).</p>
                </div>

                {/* Dates & Status Section */}
                <div className="border-t-2 border-amber-200 pt-6 mt-6">
                  <h3 className="text-lg font-bold text-slate-900 mb-4 flex items-center gap-2">
                    <div className="h-1 w-8 bg-gradient-to-r from-amber-400 to-amber-600 rounded-full"></div>
                    Promotion Period & Status
                  </h3>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Start Date <span className="text-rose-500">*</span>
                    </label>
                    <input
                      type="date"
                      value={formData.start_date}
                      onChange={(e) => setFormData({ ...formData, start_date: e.target.value })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      required
                    />
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      End Date <span className="text-rose-500">*</span>
                    </label>
                    <input
                      type="date"
                      value={formData.end_date}
                      onChange={(e) => setFormData({ ...formData, end_date: e.target.value })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      required
                    />
                  </div>
                </div>

                <div className="grid grid-cols-2 gap-6">
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Usage Limit (0 = unlimited)
                    </label>
                    <input
                      type="number"
                      value={formData.usage_limit}
                      onChange={(e) => setFormData({ ...formData, usage_limit: parseInt(e.target.value) })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm"
                      min="0"
                    />
                  </div>
                  <div>
                    <label className="block text-xs font-semibold text-slate-600 uppercase tracking-wider mb-2">
                      Status
                    </label>
                    <select
                      value={formData.status}
                      onChange={(e) => setFormData({ ...formData, status: e.target.value as 'active' | 'inactive' })}
                      className="w-full px-4 py-3 bg-white border-2 border-slate-200 rounded-xl focus:border-amber-400 focus:ring-4 focus:ring-amber-100 transition-all duration-200 text-slate-700 font-medium shadow-sm cursor-pointer"
                    >
                      <option value="active">Active</option>
                      <option value="inactive">Inactive</option>
                    </select>
                  </div>
                </div>

                <div className="sticky bottom-0 bg-white border-t border-slate-200 mt-8 -mx-4 sm:-mx-6 md:-mx-8 px-4 sm:px-6 md:px-8 py-4 flex justify-end gap-3">
                  <button
                    type="button"
                    onClick={() => setShowModal(false)}
                    className="px-8 py-3 border-2 border-slate-300 rounded-xl text-slate-700 font-semibold hover:bg-slate-50 transition-all duration-200 shadow-sm hover:shadow-md"
                  >
                    Cancel
                  </button>
                  <button
                    type="submit"
                    className="px-8 py-3 bg-gradient-to-r from-amber-500 to-amber-600 text-white rounded-xl font-semibold hover:from-amber-600 hover:to-amber-700 transition-all duration-200 shadow-lg hover:shadow-xl"
                  >
                    {editingPromotion ? 'Update' : 'Create'}
                  </button>
                </div>
              </form>
            </div>
          </div>
        </div>
        </div>
      )}
    </div>
  );
};

export default PromotionManagementPage;
