import React, { useEffect, useState } from 'react';
import { useParams, useNavigate } from 'react-router-dom';
import { Button, Input, message, Spin, Tag, Card, Avatar, List, Pagination } from 'antd';
import { DownloadOutlined, ArrowLeftOutlined, SendOutlined } from '@ant-design/icons';
import {
    getTorrentInfo,
    downloadTorrent,
    addComment,
    getComments,
    getCategories,
} from '../../services/bt/index';

const PAGE_SIZE = 10;

const TorrentDetail: React.FC = () => {
const { id } = useParams<{ id: string }>();
const navigate = useNavigate();

const [loading, setLoading] = useState(true);
const [torrent, setTorrent] = useState<any>(null);
const [categories, setCategories] = useState<any[]>([]);
const [comments, setComments] = useState<any[]>([]);
const [commentLoading, setCommentLoading] = useState(false);
const [comment, setComment] = useState('');
const [commentsTotal, setCommentsTotal] = useState(0);
const [pageNum, setPageNum] = useState(1);

useEffect(() => {
    setLoading(true);
    getTorrentInfo({ id: id! })
        .then((res) => setTorrent(res.data))
        .finally(() => setLoading(false));
    getCategories().then((res) => setCategories(res.data || []));
}, [id]);

useEffect(() => {
    fetchComments(pageNum);
    // eslint-disable-next-line
}, [id, pageNum]);

const fetchComments = (page: number) => {
    setCommentLoading(true);
    getComments({ torrentId: Number(id), pageNum: page, pageSize: PAGE_SIZE })
        .then((res) => {0
            setComments(res.data?.list || []);
            setCommentsTotal(res.data?.total || 0);
        })
        .finally(() => setCommentLoading(false));
};

const handleDownload = async () => {
    try {
        const res = await downloadTorrent({ id: id! });
        const blob = new Blob([res], { type: 'application/x-bittorrent' });
        const url = window.URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url;
        a.download = `${torrent?.title || 'torrent'}.torrent`;
        a.click();
        window.URL.revokeObjectURL(url);
    } catch {
        message.error('下载失败');
    }
};

const handleAddComment = async () => {
    if (!comment.trim()) return;
    await addComment({ torrentId: Number(id), comment });
    setComment('');
    fetchComments(1);
    setPageNum(1);
    message.success('评论成功');
};

const getCategoryName = (catId: number) => {
    return categories.find((c) => c.id === catId)?.name || '未知分类';
};

const statusMap: Record<number, string> = {
    0: '审核中',
    1: '已发布',
    2: '审核不通过',
    3: '已上架修改重审中',
    10: '已下架',
};

// 星球主题样式
const planetBg = {
    background: 'radial-gradient(circle at 60% 40%, #2b6cb0 0%, #1a202c 100%)',
    minHeight: '100vh',
    padding: '32px 0',
};
// 创建独立的评论项组件
interface CommentItemProps {
    item: any;
    torrentId: string | undefined;
    refreshComments: () => void;
}
const CommentItem: React.FC<CommentItemProps> = ({ item, torrentId, refreshComments }) => {
    const [expanded, setExpanded] = useState(false);
    const [replyContent, setReplyContent] = useState('');
    const [replying, setReplying] = useState(false);

    const handleReply = async () => {
        if (!replyContent.trim()) return;
        setReplying(true);
        try {
            await addComment({ 
                torrentId: Number(torrentId), 
                comment: replyContent, 
                pid: item.id 
            });
            setReplyContent('');
            setReplying(false);
            refreshComments();
            message.success('回复成功');
        } catch (error) {
            message.error('回复失败');
            setReplying(false);
        }
    };

    return (
        <List.Item
            style={{
                alignItems: 'flex-start',
                border: 'none',
                background: 'transparent',
                padding: '20px 0',
                borderBottom: '1px solid rgba(255,255,255,0.08)',
            }}
        >
            <List.Item.Meta
                avatar={
                    <Avatar
                        src={item.avatar ? 
                            (item.avatar.startsWith('http') ? 
                                item.avatar : 
                                `${item.avatar}`) : 
                            'https://img.icons8.com/color/48/planet.png'
                        }
                        size={48}
                        style={{ boxShadow: '0 2px 8px #4299e1' }}
                    />
                }
                title={
                    <span style={{ color: '#fff', fontWeight: 500 }}>
                        {item.username || '匿名用户'}
                    </span>
                }
                description={
                    <div>
                        <span style={{ color: '#cbd5e1', fontSize: 16, display: 'block' }}>
                            {item.comment}
                        </span>
                        <div style={{ marginTop: 8 }}>
                            <span style={{ fontSize: 12, color: '#a0aec0' }}>
                                {item.createTime}
                            </span>
                            <Button
                                type="link"
                                size="small"
                                style={{ marginLeft: 16, color: '#4299e1' }}
                                onClick={() => setExpanded(v => !v)}
                            >
                                {expanded ? '收起回复' : `展开回复${item.children?.length ? ` (${item.children.length})` : ''}`}
                            </Button>
                        </div>
                    </div>
                }
            />
            {expanded && (
                <div style={{ width: '100%', marginTop: 12, marginLeft: 56 }}>
                    {item.children?.length > 0 && (
                        <List
                            dataSource={item.children}
                            itemLayout="horizontal"
                            locale={{ emptyText: '暂无子评论' }}
                            renderItem={(child: any) => (
                                <List.Item
                                    style={{
                                        border: 'none',
                                        background: 'transparent',
                                        padding: '12px 0 0 0',
                                        marginLeft: 0,
                                    }}
                                >
                                    <List.Item.Meta
                                        avatar={
                                            <Avatar
                                                src={child.avatar ? 
                                                    (child.avatar.startsWith('http') ? 
                                                        child.avatar : 
                                                        `${child.avatar}`) : 
                                                    'https://img.icons8.com/color/48/planet.png'
                                                }
                                                size={36}
                                                style={{ boxShadow: '0 1px 4px #805ad5' }}
                                            />
                                        }
                                        title={
                                            <span style={{ color: '#c3bfff', fontWeight: 500, fontSize: 15 }}>
                                                {child.username || '匿名用户'}
                                            </span>
                                        }
                                        description={
                                            <div>
                                                <span style={{ color: '#e0e7ef', fontSize: 15, display: 'block' }}>
                                                    {child.comment}
                                                </span>
                                                <span style={{ marginLeft: 12, fontSize: 12, color: '#a0aec0' }}>
                                                    {child.createTime}
                                                </span>
                                            </div>
                                        }
                                    />
                                </List.Item>
                            )}
                        />
                    )}
                    <div style={{ display: 'flex', marginTop: 12, gap: 8 }}>
                        <Input.TextArea
                            value={replyContent}
                            onChange={e => setReplyContent(e.target.value)}
                            placeholder="回复该评论"
                            autoSize={{ minRows: 1, maxRows: 3 }}
                            style={{ background: 'rgba(255,255,255,0.15)', color: '#fff', border: 'none', flex: 1 }}
                        />
                        <Button
                            type="primary"
                            icon={<SendOutlined />}
                            loading={replying}
                            onClick={handleReply}
                            disabled={!replyContent.trim()}
                            style={{ background: 'linear-gradient(90deg,#4299e1,#805ad5)', border: 'none', height: 40 }}
                        >
                            发送
                        </Button>
                    </div>
                </div>
            )}
        </List.Item>
    );
};

// 在return中使用修复后的代码
return (
    <div style={planetBg}>
        <div style={{ maxWidth: 900, margin: '0 auto', background: 'rgba(255,255,255,0.08)', borderRadius: 16, boxShadow: '0 8px 32px rgba(0,0,0,0.2)', padding: 24 }}>
            <Button
                icon={<ArrowLeftOutlined />}
                type="link"
                onClick={() => navigate(-1)}
                style={{ color: '#fff', marginBottom: 16 }}
            >
                返回
            </Button>
            {loading ? (
                <Spin size="large" />
            ) : (
                <>
                    {torrent?.status !== 1 ? (
                        <div style={{ color: '#fff', fontSize: 24, textAlign: 'center', padding: '80px 0' }}>
                            当前状态：{statusMap[torrent?.status] || '未知状态'}
                        </div>
                    ) : (
                        <>
                            <div style={{ display: 'flex', alignItems: 'center', gap: 24 }}>
                                <Avatar
                                    size={96}
                                    src={torrent?.cover || 'https://img.icons8.com/color/96/planet.png'}
                                    style={{ boxShadow: '0 0 24px #4299e1' }}
                                />
                                <div>
                                    <h1 style={{ color: '#fff', fontSize: 32, marginBottom: 8 }}>
                                        {torrent?.title}
                                    </h1>
                                    <div style={{ marginBottom: 8 }}>
                                        <Tag color="geekblue">{getCategoryName(torrent?.categoryId)}</Tag>
                                        {torrent?.tags?.map((tag: string) => (
                                            <Tag key={tag} color="blue">{tag}</Tag>
                                        ))}
                                    </div>
                                    <div style={{ color: '#cbd5e1', marginBottom: 8 }}>
                                        上传者：{torrent?.owner} | 上传时间：{torrent?.createdAt}
                                    </div>
                                    <Button
                                        type="primary"
                                        icon={<DownloadOutlined />}
                                        onClick={handleDownload}
                                        style={{ background: 'linear-gradient(90deg,#4299e1,#805ad5)', border: 'none' }}
                                    >
                                        下载种子
                                    </Button>
                                </div>
                            </div>
                            <Card
                                style={{
                                    marginTop: 32,
                                    background: 'rgba(255,255,255,0.10)',
                                    border: 'none',
                                    borderRadius: 12,
                                    color: '#fff',
                                }}
                                title={<span style={{ color: '#fff' }}>星球评论</span>}
                            >
                                
                                    <List
                                        loading={commentLoading}
                                        dataSource={comments.filter((item: any) => item.pid === null)}
                                        locale={{ emptyText: '暂无评论' }}
                                        renderItem={(item: any) => (
                                            <CommentItem 
                                                item={item} 
                                                torrentId={id} 
                                                refreshComments={() => fetchComments(pageNum)} 
                                            />
                                        )}
                                    />
                                    <Pagination
                                        style={{ marginTop: 16, textAlign: 'right' }}
                                        current={pageNum}
                                        pageSize={PAGE_SIZE}
                                        total={commentsTotal}
                                        onChange={setPageNum}
                                        showSizeChanger={false}
                                    />
                                <div style={{ display: 'flex', marginTop: 24, gap: 8 }}>
                                    <Input.TextArea
                                        value={comment}
                                        onChange={e => setComment(e.target.value)}
                                        placeholder="在星球上留下你的评论吧~"
                                        autoSize={{ minRows: 2, maxRows: 4 }}
                                        style={{ 
                                            background: 'rgba(255,255,255,0.15)', 
                                            color: '#fff', 
                                            border: 'none',
                                            flex: 1 
                                        }}
                                    />
                                    <Button
                                        type="primary"
                                        icon={<SendOutlined />}
                                        onClick={handleAddComment}
                                        disabled={!comment.trim()}
                                        style={{ 
                                            background: 'linear-gradient(90deg,#4299e1,#805ad5)', 
                                            border: 'none', 
                                            height: 48,
                                            alignSelf: 'flex-end'
                                        }}
                                    >
                                        发送
                                    </Button>
                                </div>
                            </Card>
                        </>
                    )}
                </>
            )}
        </div>
    </div>
);
// return (
//     <div style={planetBg}>
//         <div style={{ maxWidth: 900, margin: '0 auto', background: 'rgba(255,255,255,0.08)', borderRadius: 16, boxShadow: '0 8px 32px rgba(0,0,0,0.2)', padding: 24 }}>
//             <Button
//                 icon={<ArrowLeftOutlined />}
//                 type="link"
//                 onClick={() => navigate(-1)}
//                 style={{ color: '#fff', marginBottom: 16 }}
//             >
//                 返回
//             </Button>
//             {loading ? (
//                 <Spin size="large" />
//             ) : (
//                 <>
//                     {torrent?.status !== 1 ? (
//                         <div style={{ color: '#fff', fontSize: 24, textAlign: 'center', padding: '80px 0' }}>
//                             当前状态：{statusMap[torrent?.status] || '未知状态'}
//                         </div>
//                     ) : (
//                         <>


//                             <Card
//                                 style={{
//                                     marginTop: 32,
//                                     background: 'rgba(255,255,255,0.12)',
//                                     border: 'none',
//                                     borderRadius: 12,
//                                     color: '#fff',
//                                 }}
//                                 title={<span style={{ color: '#fff' }}>种子详情</span>}
//                             >
//                                 <div dangerouslySetInnerHTML={{ __html: torrent?.description || '' }} />
//                                 <div style={{ marginTop: 16, color: '#cbd5e1' }}>
//                                     <span>文件大小：{torrent?.size}</span>
//                                     <span style={{ marginLeft: 24 }}>做种人数：{torrent?.seeders}</span>
//                                     <span style={{ marginLeft: 24 }}>下载人数：{torrent?.leechers}</span>
//                                     <span style={{ marginLeft: 24 }}>完成次数：{torrent?.completed}</span>
//                                 </div>
//                             </Card>
//                             <Card
//                                 style={{
//                                     marginTop: 32,
//                                     background: 'rgba(255,255,255,0.10)',
//                                     border: 'none',
//                                     borderRadius: 12,
//                                     color: '#fff',
//                                 }}
//                                 title={<span style={{ color: '#fff' }}>星球评论</span>}
//                             >
//                                 <List
//                                     loading={commentLoading}
//                                     dataSource={comments}
//                                     locale={{ emptyText: '暂无评论' }}
//                                     renderItem={(item: any) => {
//                                         // 只渲染顶级评论（pid为null）
//                                         if (item.pid !== null) return null;
//                                         const [expanded, setExpanded] = useState(false);
//                                         const [replyContent, setReplyContent] = useState('');
//                                         const [replying, setReplying] = useState(false);

//                                         const handleReply = async () => {
//                                             if (!replyContent.trim()) return;
//                                             setReplying(true);
//                                             await addComment({ torrentId: Number(id), comment: replyContent, pid: item.id });
//                                             setReplyContent('');
//                                             setReplying(false);
//                                             fetchComments(pageNum);
//                                             message.success('回复成功');
//                                         };

//                                         return (
//                                             <List.Item
//                                                 style={{
//                                                     alignItems: 'flex-start',
//                                                     border: 'none',
//                                                     background: 'transparent',
//                                                     padding: '20px 0',
//                                                     borderBottom: '1px solid rgba(255,255,255,0.08)',
//                                                 }}
//                                             >
//                                                 <List.Item.Meta
//                                                     avatar={
//                                                         <Avatar
//                                                             src={item.avatar ? item.avatar.startsWith('http') ? item.avatar : `${item.avatar}` : 'https://img.icons8.com/color/48/planet.png'}
//                                                             size={48}
//                                                             style={{ boxShadow: '0 2px 8px #4299e1' }}
//                                                         />
//                                                     }
//                                                     title={
//                                                         <span style={{ color: '#fff', fontWeight: 500 }}>
//                                                             {item.username || '匿名用户'}
//                                                         </span>
//                                                     }
//                                                     description={
//                                                         <span style={{ color: '#cbd5e1', fontSize: 16 }}>
//                                                             {item.comment}
//                                                             <span style={{ marginLeft: 16, fontSize: 12, color: '#a0aec0' }}>
//                                                                 {item.createTime}
//                                                             </span>
//                                                             <Button
//                                                                 type="link"
//                                                                 size="small"
//                                                                 style={{ marginLeft: 16, color: '#4299e1' }}
//                                                                 onClick={() => setExpanded((v) => !v)}
//                                                             >
//                                                                 {expanded ? '收起回复' : `展开回复${item.children?.length ? ` (${item.children.length})` : ''}`}
//                                                             </Button>
//                                                         </span>
//                                                     }
//                                                 />
//                                                 {expanded && (
//                                                     <div style={{ width: '100%', marginTop: 12, marginLeft: 56 }}>
//                                                         <List
//                                                             dataSource={item.children}
//                                                             itemLayout="horizontal"
//                                                             locale={{ emptyText: '暂无子评论' }}
//                                                             renderItem={(child: any) => (
//                                                                 <List.Item
//                                                                     style={{
//                                                                         border: 'none',
//                                                                         background: 'transparent',
//                                                                         padding: '12px 0 0 0',
//                                                                         marginLeft: 0,
//                                                                     }}
//                                                                 >
//                                                                     <List.Item.Meta
//                                                                         avatar={
//                                                                             <Avatar
//                                                                                 src={child.avatar ? child.avatar.startsWith('http') ? child.avatar : `${child.avatar}` : 'https://img.icons8.com/color/48/planet.png'}
//                                                                                 size={36}
//                                                                                 style={{ boxShadow: '0 1px 4px #805ad5' }}
//                                                                             />
//                                                                         }
//                                                                         title={
//                                                                             <span style={{ color: '#c3bfff', fontWeight: 500, fontSize: 15 }}>
//                                                                                 {child.username || '匿名用户'}
//                                                                             </span>
//                                                                         }
//                                                                         description={
//                                                                             <span style={{ color: '#e0e7ef', fontSize: 15 }}>
//                                                                                 {child.comment}
//                                                                                 <span style={{ marginLeft: 12, fontSize: 12, color: '#a0aec0' }}>
//                                                                                     {child.createTime}
//                                                                                 </span>
//                                                                             </span>
//                                                                         }
//                                                                     />
//                                                                 </List.Item>
//                                                             )}
//                                                         />
//                                                         <div style={{ display: 'flex', marginTop: 12, gap: 8 }}>
//                                                             <Input.TextArea
//                                                                 value={replyContent}
//                                                                 onChange={e => setReplyContent(e.target.value)}
//                                                                 placeholder="回复该评论"
//                                                                 autoSize={{ minRows: 1, maxRows: 3 }}
//                                                                 style={{ background: 'rgba(255,255,255,0.15)', color: '#fff', border: 'none' }}
//                                                             />
//                                                             <Button
//                                                                 type="primary"
//                                                                 icon={<SendOutlined />}
//                                                                 loading={replying}
//                                                                 onClick={handleReply}
//                                                                 disabled={!replyContent.trim()}
//                                                                 style={{ background: 'linear-gradient(90deg,#4299e1,#805ad5)', border: 'none', height: 40 }}
//                                                             >
//                                                                 发送
//                                                             </Button>
//                                                         </div>
//                                                     </div>
//                                                 )}
//                                             </List.Item>
//                                         );
//                                     }}
//                                 />
//                                 <Pagination
//                                     style={{ marginTop: 16, textAlign: 'right' }}
//                                     current={pageNum}
//                                     pageSize={PAGE_SIZE}
//                                     total={commentsTotal}
//                                     onChange={setPageNum}
//                                     showSizeChanger={false}
//                                 />
//                                 <div style={{ display: 'flex', marginTop: 24, gap: 8 }}>
//                                     <Input.TextArea
//                                         value={comment}
//                                         onChange={e => setComment(e.target.value)}
//                                         placeholder="在星球上留下你的评论吧~"
//                                         autoSize={{ minRows: 2, maxRows: 4 }}
//                                         style={{ background: 'rgba(255,255,255,0.15)', color: '#fff', border: 'none' }}
//                                     />
//                                     <Button
//                                         type="primary"
//                                         icon={<SendOutlined />}
//                                         onClick={handleAddComment}
//                                         disabled={!comment.trim()}
//                                         style={{ background: 'linear-gradient(90deg,#4299e1,#805ad5)', border: 'none', height: 48 }}
//                                     >
//                                         发送
//                                     </Button>
//                                 </div>
//                             </Card>
//                         </>
//                     )}
//                 </>
//             )}
//         </div>
//     </div>
// );
};

export default TorrentDetail;