import React, { useState } from 'react';
import { PlusCircle, Edit3, Trash2, ShoppingBag, Image as ImageIcon } from 'lucide-react';
import { Offer, OfferType } from '../../types';
import { MOCK_OFFERS } from '../../services/mockData';

const DashboardOffers = () => {
    const [offers, setOffers] = useState<Offer[]>(MOCK_OFFERS);
    const [isModalOpen, setIsModalOpen] = useState(false);
    const [currentOffer, setCurrentOffer] = useState<Partial<Offer>>({
        title: '',
        price: 0,
        currency: 'XOF',
        type: OfferType.SERVICE
    });

    const handleDelete = (id: string) => {
        if (window.confirm("Voulez-vous vraiment supprimer cette offre ?")) {
            setOffers(offers.filter(o => o.id !== id));
        }
    };

    const handleEdit = (offer: Offer) => {
        setCurrentOffer(offer);
        setIsModalOpen(true);
    };

    const openAddModal = () => {
        setCurrentOffer({
            title: '',
            price: 0,
            currency: 'XOF',
            type: OfferType.SERVICE
        });
        setIsModalOpen(true);
    };

    const handleSave = (e: React.FormEvent) => {
        e.preventDefault();
        
        if (currentOffer.id) {
            // Edit mode
            setOffers(offers.map(o => o.id === currentOffer.id ? { ...o, ...currentOffer } as Offer : o));
        } else {
            // Add mode
            const offer: Offer = {
                id: Date.now().toString(),
                businessId: '1',
                title: currentOffer.title || 'Nouvelle offre',
                type: currentOffer.type || OfferType.PRODUCT,
                price: currentOffer.price || 0,
                currency: currentOffer.currency as 'EUR'|'XOF',
                imageUrl: currentOffer.imageUrl || 'https://picsum.photos/300/200?random=' + Date.now(),
                active: true
            };
            setOffers([...offers, offer]);
        }
        setIsModalOpen(false);
    };

    return (
        <div className="space-y-6">
            <div className="flex justify-between items-center">
                <h2 className="text-2xl font-bold font-serif text-gray-900">Mes Offres</h2>
                <button onClick={openAddModal} className="flex items-center bg-brand-600 text-white px-4 py-2 rounded-md hover:bg-brand-700 font-medium text-sm shadow-sm transition-colors">
                    <PlusCircle className="w-4 h-4 mr-2" />
                    Ajouter une offre
                </button>
            </div>

            {/* List View */}
            {offers.length > 0 ? (
                <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6">
                    {offers.map(offer => (
                        <div key={offer.id} className="bg-white rounded-lg shadow border border-gray-200 overflow-hidden group">
                            <div className="relative h-40 bg-gray-200">
                                <img src={offer.imageUrl} alt={offer.title} className="w-full h-full object-cover" />
                                <div className="absolute top-2 right-2">
                                    <span className={`px-2 py-1 text-xs font-bold rounded uppercase ${offer.type === OfferType.PRODUCT ? 'bg-blue-100 text-blue-800' : 'bg-purple-100 text-purple-800'}`}>
                                        {offer.type === OfferType.PRODUCT ? 'Produit' : 'Service'}
                                    </span>
                                </div>
                            </div>
                            <div className="p-4">
                                <h3 className="font-bold text-gray-900 truncate">{offer.title}</h3>
                                <p className="text-brand-600 font-bold mt-1">
                                    {new Intl.NumberFormat('fr-FR').format(offer.price)} {offer.currency}
                                </p>
                                <div className="mt-4 flex justify-between items-center pt-4 border-t border-gray-100">
                                    <span className={`inline-flex items-center px-2 py-0.5 rounded text-xs font-medium ${offer.active ? 'bg-green-100 text-green-800' : 'bg-red-100 text-red-800'}`}>
                                        {offer.active ? 'Actif' : 'Inactif'}
                                    </span>
                                    <div className="flex space-x-2">
                                        <button onClick={() => handleEdit(offer)} className="p-1 text-gray-400 hover:text-brand-600" title="Modifier">
                                            <Edit3 className="w-4 h-4" />
                                        </button>
                                        <button onClick={() => handleDelete(offer.id)} className="p-1 text-gray-400 hover:text-red-600" title="Supprimer">
                                            <Trash2 className="w-4 h-4" />
                                        </button>
                                    </div>
                                </div>
                            </div>
                        </div>
                    ))}
                </div>
            ) : (
                <div className="text-center py-12 bg-white rounded-lg border-2 border-dashed border-gray-300">
                    <ShoppingBag className="mx-auto h-12 w-12 text-gray-400" />
                    <h3 className="mt-2 text-sm font-medium text-gray-900">Aucune offre</h3>
                    <p className="mt-1 text-sm text-gray-500">Commencez à vendre vos produits ou services.</p>
                </div>
            )}

            {/* Modal / Drawer */}
            {isModalOpen && (
                <div className="fixed inset-0 z-50 overflow-y-auto" aria-labelledby="modal-title" role="dialog" aria-modal="true">
                    <div className="flex items-end justify-center min-h-screen pt-4 px-4 pb-20 text-center sm:block sm:p-0">
                        <div className="fixed inset-0 bg-gray-500 bg-opacity-75 transition-opacity" aria-hidden="true" onClick={() => setIsModalOpen(false)}></div>
                        <span className="hidden sm:inline-block sm:align-middle sm:h-screen" aria-hidden="true">&#8203;</span>
                        <div className="inline-block align-bottom bg-white rounded-lg text-left overflow-hidden shadow-xl transform transition-all sm:my-8 sm:align-middle sm:max-w-lg w-full">
                            <form onSubmit={handleSave}>
                                <div className="bg-white px-4 pt-5 pb-4 sm:p-6 sm:pb-4">
                                    <div className="sm:flex sm:items-start">
                                        <div className="mx-auto flex-shrink-0 flex items-center justify-center h-12 w-12 rounded-full bg-brand-100 sm:mx-0 sm:h-10 sm:w-10">
                                            <PlusCircle className="h-6 w-6 text-brand-600" />
                                        </div>
                                        <div className="mt-3 text-center sm:mt-0 sm:ml-4 sm:text-left w-full">
                                            <h3 className="text-lg leading-6 font-medium text-gray-900" id="modal-title">
                                                {currentOffer.id ? 'Modifier l\'offre' : 'Ajouter une offre'}
                                            </h3>
                                            <div className="mt-4 space-y-4">
                                                <div>
                                                    <label className="block text-sm font-medium text-gray-700">Type d'offre</label>
                                                    <div className="mt-2 flex space-x-4">
                                                        <label className="inline-flex items-center">
                                                            <input type="radio" className="form-radio text-brand-600" name="type" checked={currentOffer.type === OfferType.PRODUCT} onChange={() => setCurrentOffer({...currentOffer, type: OfferType.PRODUCT})} />
                                                            <span className="ml-2 text-sm">Produit Physique</span>
                                                        </label>
                                                        <label className="inline-flex items-center">
                                                            <input type="radio" className="form-radio text-brand-600" name="type" checked={currentOffer.type === OfferType.SERVICE} onChange={() => setCurrentOffer({...currentOffer, type: OfferType.SERVICE})} />
                                                            <span className="ml-2 text-sm">Service / Prestation</span>
                                                        </label>
                                                    </div>
                                                </div>
                                                <div>
                                                    <label className="block text-sm font-medium text-gray-700">Titre</label>
                                                    <input type="text" required className="mt-1 block w-full border border-gray-300 rounded-md shadow-sm py-2 px-3 sm:text-sm" value={currentOffer.title} onChange={e => setCurrentOffer({...currentOffer, title: e.target.value})} placeholder="Ex: Savon Karité Bio" />
                                                </div>
                                                <div className="grid grid-cols-2 gap-4">
                                                    <div>
                                                        <label className="block text-sm font-medium text-gray-700">Prix</label>
                                                        <input type="number" required min="0" className="mt-1 block w-full border border-gray-300 rounded-md shadow-sm py-2 px-3 sm:text-sm" value={currentOffer.price} onChange={e => setCurrentOffer({...currentOffer, price: parseInt(e.target.value)})} />
                                                    </div>
                                                    <div>
                                                        <label className="block text-sm font-medium text-gray-700">Devise</label>
                                                        <select className="mt-1 block w-full border border-gray-300 rounded-md shadow-sm py-2 px-3 sm:text-sm" value={currentOffer.currency} onChange={e => setCurrentOffer({...currentOffer, currency: e.target.value as any})}>
                                                            <option value="XOF">FCFA (XOF)</option>
                                                            <option value="EUR">EUR (€)</option>
                                                        </select>
                                                    </div>
                                                </div>
                                                <div>
                                                    <label className="block text-sm font-medium text-gray-700">Photo</label>
                                                    <div className="mt-1 flex justify-center px-6 pt-5 pb-6 border-2 border-gray-300 border-dashed rounded-md">
                                                        <div className="space-y-1 text-center">
                                                            <ImageIcon className="mx-auto h-12 w-12 text-gray-400" />
                                                            <p className="text-xs text-gray-500">PNG, JPG jusqu'à 5MB</p>
                                                        </div>
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                                <div className="bg-gray-50 px-4 py-3 sm:px-6 sm:flex sm:flex-row-reverse">
                                    <button type="submit" className="w-full inline-flex justify-center rounded-md border border-transparent shadow-sm px-4 py-2 bg-brand-600 text-base font-medium text-white hover:bg-brand-700 focus:outline-none sm:ml-3 sm:w-auto sm:text-sm">
                                        {currentOffer.id ? 'Mettre à jour' : 'Publier l\'offre'}
                                    </button>
                                    <button type="button" onClick={() => setIsModalOpen(false)} className="mt-3 w-full inline-flex justify-center rounded-md border border-gray-300 shadow-sm px-4 py-2 bg-white text-base font-medium text-gray-700 hover:bg-gray-50 focus:outline-none sm:mt-0 sm:ml-3 sm:w-auto sm:text-sm">
                                        Annuler
                                    </button>
                                </div>
                            </form>
                        </div>
                    </div>
                </div>
            )}
        </div>
    );
};

export default DashboardOffers;