import React, { useMemo } from "react";
import { Image, Button, Row, Col } from "antd";
import { DownloadOutlined } from "@ant-design/icons";
import { PostDto } from "@nice/common";
import { env } from "@web/src/env";
import { getFileIcon } from "./utils";

export default function PostResources({ post }: { post: PostDto }) {
	const { resources } = useMemo(() => {
		if (!post?.resources) return { resources: [] };

		const isImage = (url: string) => /\.(png|jpg|jpeg|gif|webp)$/i.test(url);

		const sortedResources = post.resources
			.map((resource) => ({
				...resource,
				url: `http://${env.SERVER_IP}/uploads/${resource.url}`,
				isImage: isImage(resource.url),
			}))
			.sort((a, b) => (a.isImage === b.isImage ? 0 : a.isImage ? -1 : 1));

		return { resources: sortedResources };
	}, [post]);

	const imageResources = resources.filter((res) => res.isImage);
	const fileResources = resources.filter((res) => !res.isImage);

	return (
		<div className="space-y-6">
			{imageResources.length > 0 && (
				<Row gutter={[16, 16]} className="mb-6">
					<Image.PreviewGroup>
						{imageResources.map((resource) => (
							<Col
								key={resource.url}
								xs={12}
								sm={8}
								md={6}
								lg={6}
								xl={4}
								className="relative"
							>
								<div className="relative aspect-square rounded-lg overflow-hidden shadow-md hover:shadow-lg transition-shadow duration-300 bg-gray-100">
									<div className="w-full h-full">
										<Image
											src={resource.url}
											alt={resource.title}
											preview={{
												mask: (
													<div className="flex items-center justify-center text-white">
														点击预览
													</div>
												),
											}}
											style={{
												position: "absolute",
												inset: 0,
												width: "100%",
												height: "100%",
												objectFit: "cover",
											}}
											rootClassName="w-full h-full"
										/>
									</div>
									{resource.title && (
										<div className="absolute bottom-0 left-0 right-0 p-3 bg-gradient-to-t from-black/60 to-transparent text-white text-sm truncate">
											{resource.title}
										</div>
									)}
								</div>
							</Col>
						))}
					</Image.PreviewGroup>
				</Row>
			)}

			{fileResources.length > 0 && (
				<div className="rounded-xl p-4 bg-gray-200">
					<div className="space-y-2">
						{fileResources.map((resource) => (
							<div
								key={resource.url}
								className="flex items-center justify-between p-3 hover:bg-gray-50 rounded-md transition-colors duration-200"
							>
								<div className="flex items-center space-x-3 min-w-0">
									<span className="text-xl">{getFileIcon(resource.url)}</span>
									<div className="min-w-0">
										<p className="text-gray-800 truncate">
											{resource.title || "未命名文件"}
										</p>
										<div className="flex items-center space-x-2">
											<span className="text-xs text-gray-500">
												{resource.url.split(".").pop()?.toUpperCase()}文件
											</span>
											<span className="text-xs text-gray-400">
												{resource.metadata.size &&
													`${(resource.metadata.size / 1024 / 1024).toFixed(1)}MB`}
											</span>
										</div>
									</div>
								</div>
								<Button
									icon={<DownloadOutlined />}
									href={resource.url}
									download
								>
									下载
								</Button>
							</div>
						))}
					</div>
				</div>
			)}
		</div>
	);
}