"use client";

import { useState } from 'react';
import { Image } from 'antd';
import { CloseOutlined, UserOutlined, CameraOutlined, BulbOutlined } from '@ant-design/icons';
import type { PhotoPreviewSectionProps, PhotoType } from './types';
import './styles.css';

/**
 * Photo Preview Section Component
 * Displays a horizontal list of photos with type indicators and delete functionality
 * @param photos - Array of photos with type information
 * @param onDelete - Callback when a photo is deleted
 * @param className - Additional CSS classes
 */
export default function PhotoPreviewSection({
    photos = [],
    onDelete,
    className = '',
}: PhotoPreviewSectionProps) {
    const [previewVisible, setPreviewVisible] = useState(false);
    const [previewImage, setPreviewImage] = useState('');
    const [hoveredIndex, setHoveredIndex] = useState<number | null>(null);

    /**
     * Get icon for photo type
     */
    const getTypeIcon = (type: PhotoType) => {
        switch (type) {
            case 'character':
                return <UserOutlined className="text-sm" />;
            case 'scene':
                return <CameraOutlined className="text-sm" />;
            case 'prop':
                return <BulbOutlined className="text-sm" />;
            default:
                return null;
        }
    };

    /**
     * Get label for photo type
     */
    const getTypeLabel = (type: PhotoType) => {
        switch (type) {
            case 'character':
                return 'Character';
            case 'scene':
                return 'Scene';
            case 'prop':
                return 'Prop';
            default:
                return '';
        }
    };

    /**
     * Handle photo preview
     */
    const handlePreview = (url: string) => {
        setPreviewImage(url);
        setPreviewVisible(true);
    };

    /**
     * Handle photo deletion
     */
    const handleDelete = (index: number) => {
        onDelete?.(index);
    };

    /** Don't render if no photos */
    if (photos.length === 0) {
        return null;
    }

    return (
        <div data-alt="photo-preview-section" className={`w-full ${className}`}>
            {/* Photo List Container with Horizontal Scroll */}
            <div
                data-alt="photo-list-container"
                className="flex gap-2 overflow-x-auto overflow-y-hidden photo-list-scrollbar pb-1"
            >
                {photos.map((photo, index) => (
                    <div
                        key={photo.id || `photo-${index}`}
                        data-alt="photo-item"
                        className="relative flex-shrink-0 w-16 h-16 rounded-md overflow-visible border border-white/10 hover:border-cyan-400/60 transition-all duration-200 cursor-pointer group bg-black/20"
                        onMouseEnter={() => setHoveredIndex(index)}
                        onMouseLeave={() => setHoveredIndex(null)}
                    >
                        {/* Photo Image */}
                        <div 
                            className="w-full h-full rounded-md overflow-hidden"
                            onClick={() => handlePreview(photo.url)}
                        >
                            <img
                                src={photo.url}
                                alt={`${getTypeLabel(photo.type)} ${index + 1}`}
                                className="w-full h-full object-cover"
                            />
                        </div>

                        {/* Type Icon - Bottom Left Corner */}
                        <div
                            data-alt="type-icon"
                            className="absolute bottom-1 left-1 w-5 h-5 bg-black/60 backdrop-blur-sm text-cyan-400 rounded-sm flex items-center justify-center z-[5]"
                        >
                            {getTypeIcon(photo.type)}
                        </div>

                        {/* Delete Button - Top Right Corner */}
                        {hoveredIndex === index && (
                            <button
                                data-alt="delete-button"
                                className="absolute top-1 right-1 p-1 bg-[#636364] opacity-80 hover:opacity-100 text-white rounded-full flex items-center justify-center transition-all duration-200 shadow-lg hover:scale-110 z-10"
                                onClick={(e) => {
                                    e.stopPropagation();
                                    handleDelete(index);
                                }}
                            >
                                <CloseOutlined className="text-[10px]" />
                            </button>
                        )}
                    </div>
                ))}
            </div>

            {/* Preview Modal - Using absolute positioning to avoid layout space */}
            <div style={{ position: 'absolute', width: 0, height: 0, overflow: 'hidden', opacity: 0, pointerEvents: 'none' }}>
                <Image
                    width={0}
                    height={0}
                    src={previewImage}
                    preview={{
                        visible: previewVisible,
                        src: previewImage,
                        onVisibleChange: (visible) => {
                            setPreviewVisible(visible);
                        },
                    }}
                />
            </div>
        </div>
    );
}