react-ui/src/pages/Torrent/Comments/index.tsx

import React, { useState, useEffect, useCallback } from 'react';
import { useParams, useNavigate } from 'react-router-dom';
import { Button, Card, Form, Input, List, message, Avatar, Spin, Empty } from 'antd';
import { ArrowLeftOutlined, UserOutlined } from '@ant-design/icons';
import { Layout } from 'antd';
import { listComments, addComment } from './service';
import { responseSysTorrentComment, SysTorrentComment } from './data';

const { Content } = Layout;
const { TextArea } = Input;

interface CommentItem {
    id: number;
    content: string;
    createTime: string;
    createBy: string;
    torrentId: number;
}

const TorrentComments: React.FC = () => {
    const { torrentId } = useParams<{ torrentId: string }>();
    const navigate = useNavigate();
    const [form] = Form.useForm();
    const [comments, setComments] = useState<CommentItem[]>([]);
    const [submitting, setSubmitting] = useState(false);
    const [loading, setLoading] = useState(false);

    // 格式化时间
    const formatTime = (time: string | Date | null | undefined): string => {
        if (!time) return '未知时间';

        try {
            const date = new Date(time);
            const now = new Date();
            const diff = now.getTime() - date.getTime();

            // 小于1分钟
            if (diff < 60 * 1000) {
                return '刚刚';
            }
            // 小于1小时
            if (diff < 60 * 60 * 1000) {
                return `${Math.floor(diff / (60 * 1000))}分钟前`;
            }
            // 小于24小时
            if (diff < 24 * 60 * 60 * 1000) {
                return `${Math.floor(diff / (60 * 60 * 1000))}小时前`;
            }
            // 小于7天
            if (diff < 7 * 24 * 60 * 60 * 1000) {
                return `${Math.floor(diff / (24 * 60 * 60 * 1000))}天前`;
            }

            // 否则显示具体日期
            return date.toLocaleDateString('zh-CN', {
                year: 'numeric',
                month: '2-digit',
                day: '2-digit',
                hour: '2-digit',
                minute: '2-digit'
            });
        } catch (error) {
            return '未知时间';
        }
    };

    // 获取用户显示名称
    const getUserDisplayName = (userId: number | null | undefined): string => {
        if (!userId) return '匿名用户';
        return `用户${userId}`;
    };

    // 获取用户头像字符
    const getAvatarChar = (userName: string): string => {
        if (!userName || userName === '匿名用户') return '?';
        // 如果是"用户123"格式，取数字的最后一位
        const match = userName.match(/\d+$/);
        if (match) {
            return match[0].slice(-1);
        }
        return userName[0].toUpperCase();
    };

    // 获取评论列表
    const fetchComments = useCallback(async () => {
        if (!torrentId) return;

        setLoading(true);
        try {

            const res = await listComments(Number(torrentId));
            console.log('获取评论列表:', res);
            if (res) {
                const formattedComments: SysTorrentComment[] = res.data.map((comment: SysTorrentComment) => ({
                    id: comment.commentId ?? 0,
                    content: comment.content ?? '无内容',
                    createTime: comment.createTime || '',
                    createBy: getUserDisplayName(comment.userId),
                    torrentId: comment.torrentId ?? 0,
                }));

                // 按时间倒序排列，最新的在前面
                formattedComments.sort((a, b) => {
                    const timeA = a.createTime ? new Date(a.createTime).getTime() : 0;
                    const timeB = b.createTime ? new Date(b.createTime).getTime() : 0;
                    return timeB - timeA;
                });

                setComments(formattedComments);
            } else {
                message.error(res?.msg || '获取评论列表失败');
                setComments([]);
            }
        } catch (error) {
            console.error('获取评论失败:', error);
            message.error('获取评论失败，请稍后重试');
            setComments([]);
        } finally {
            setLoading(false);
        }
    }, [torrentId]);

    useEffect(() => {
        if (torrentId) {
            fetchComments();
        }
    }, [torrentId, fetchComments]);

    // 提交评论
    const handleSubmit = async () => {
        try {
            const values = await form.validateFields();
            setSubmitting(true);

            // 调用添加评论的API
            const response = await addComment({
                torrentId: Number(torrentId),
                content: values.content.trim(),
            });

            if (response?.code === 200) {
                message.success('评论成功');
                form.resetFields();
                // 刷新评论列表
                await fetchComments();
            } else {
                message.error(response?.msg || '评论失败，请稍后重试');
            }
        } catch (error) {
            console.error('评论失败:', error);
            message.error('评论失败，请稍后重试');
        } finally {
            setSubmitting(false);
        }
    };

    // 处理按下 Ctrl+Enter 提交
    const handleKeyDown = (e: React.KeyboardEvent) => {
        if (e.ctrlKey && e.key === 'Enter' && !submitting) {
            handleSubmit();
        }
    };

    return (
        <Content style={{
            height: '100vh',
            display: 'flex',
            flexDirection: 'column',
            overflow: 'hidden',
            backgroundColor: '#f5f5f5'
        }}>
            {/* 顶部标题栏 */}
            <div style={{
                padding: '16px',
                borderBottom: '1px solid #f0f0f0',
                display: 'flex',
                alignItems: 'center',
                backgroundColor: '#fff',
                zIndex: 10,
                boxShadow: '0 2px 8px rgba(0, 0, 0, 0.06)'
            }}>
                <Button
                    type="link"
                    icon={<ArrowLeftOutlined />}
                    onClick={() => navigate(-1)}
                    style={{ marginRight: '10px', padding: 0 }}
                />
                <span style={{ fontSize: '16px', fontWeight: 'bold' }}>
                    种子评论 {comments.length > 0 && `(${comments.length})`}
                </span>
            </div>

            {/* 评论列表区域 - 可滚动 */}
            <div style={{
                flex: 1,
                overflowY: 'auto',
                padding: '16px',
                paddingBottom: '8px'
            }}>
                <Spin spinning={loading}>
                    {comments.length === 0 && !loading ? (
                        <Empty
                            description="暂无评论"
                            style={{ marginTop: '60px' }}
                        />
                    ) : (
                        <List
                            className="comment-list"
                            itemLayout="horizontal"
                            dataSource={comments}
                            renderItem={(item) => (
                                <Card
                                    style={{
                                        marginBottom: '12px',
                                        borderRadius: '8px',
                                        boxShadow: '0 1px 2px rgba(0, 0, 0, 0.03)'
                                    }}
                                    bodyStyle={{ padding: '12px 16px' }}
                                >
                                    <List.Item style={{ border: 'none', padding: 0 }}>
                                        <List.Item.Meta
                                            avatar={
                                                <Avatar
                                                    style={{
                                                        backgroundColor: '#1890ff',
                                                        verticalAlign: 'middle'
                                                    }}
                                                    size="default"
                                                    icon={<UserOutlined />}
                                                >
                                                    {getAvatarChar(item.createBy)}
                                                </Avatar>
                                            }
                                            title={
                                                <div style={{
                                                    display: 'flex',
                                                    justifyContent: 'space-between',
                                                    alignItems: 'center'
                                                }}>
                                                    <span style={{ fontWeight: 500 }}>{item.createBy}</span>
                                                    <span style={{
                                                        color: '#8c8c8c',
                                                        fontSize: '12px',
                                                        fontWeight: 'normal'
                                                    }}>
                                                        {formatTime(item.createTime)}
                                                    </span>
                                                </div>
                                            }
                                            description={
                                                <div style={{
                                                    marginTop: '8px',
                                                    color: '#262626',
                                                    fontSize: '14px',
                                                    lineHeight: '22px',
                                                    wordBreak: 'break-word'
                                                }}>
                                                    {item.content}
                                                </div>
                                            }
                                        />
                                    </List.Item>
                                </Card>
                            )}
                        />
                    )}
                </Spin>
            </div>

            {/* 评论输入框 - 固定在底部 */}
            <div style={{
                padding: '16px',
                backgroundColor: '#fff',
                borderTop: '1px solid #f0f0f0',
                boxShadow: '0 -2px 8px rgba(0, 0, 0, 0.06)'
            }}>
                <Form form={form} onFinish={handleSubmit}>
                    <Form.Item
                        name="content"
                        rules={[
                            { required: true, message: '请输入评论内容' },
                            { whitespace: true, message: '评论内容不能为空' },
                            { max: 500, message: '评论内容不能超过500个字符' }
                        ]}
                        style={{ marginBottom: '12px' }}
                    >
                        <TextArea
                            rows={3}
                            placeholder="请输入您的评论（Ctrl+Enter 快速提交）"
                            maxLength={500}
                            showCount
                            onKeyDown={handleKeyDown}
                            disabled={submitting}
                        />
                    </Form.Item>
                    <Form.Item style={{ marginBottom: 0, textAlign: 'right' }}>
                        <Button
                            htmlType="submit"
                            loading={submitting}
                            type="primary"
                            disabled={loading}
                        >
                            提交评论
                        </Button>
                    </Form.Item>
                </Form>
            </div>
        </Content>
    );
};

export default TorrentComments;