// src/components/Citation/CitationMark.js
import React, { useState } from 'react';
import { Popover, Typography, Space, Divider } from 'antd';
import { FileTextOutlined, UserOutlined, CalendarOutlined } from '@ant-design/icons';

const { Text } = Typography;

/**
 * 引用标记组件 - 显示上标引用【1】【2】【3】
 * 支持悬浮（桌面）和点击（移动）两种交互方式
 *
 * @param {Object} props
 * @param {number} props.citationId - 引用 ID（1, 2, 3...）
 * @param {Object} props.citation - 引用数据对象
 * @param {string} props.citation.author - 作者
 * @param {string} props.citation.report_title - 报告标题
 * @param {string} props.citation.declare_date - 发布日期
 * @param {string} props.citation.sentences - 摘要片段
 */
const CitationMark = ({ citationId, citation }) => {
    const [popoverVisible, setPopoverVisible] = useState(false);

    // 如果没有引用数据，不渲染
    if (!citation) {
        return null;
    }

    // 引用卡片内容
    const citationContent = (
        <div style={{ maxWidth: 320, padding: '8px 10px' }}>
            {/* 报告标题 - 顶部突出显示 */}
            <div style={{ marginBottom: 8 }}>
                <Text
                    strong
                    style={{
                        fontSize: 14,
                        fontWeight: 600,
                        color: '#262626',
                        display: 'block',
                        lineHeight: 1.3
                    }}
                >
                    {citation.report_title}
                </Text>
            </div>

            {/* 作者和日期 - 左右分布 */}
            <div style={{
                display: 'flex',
                justifyContent: 'space-between',
                alignItems: 'center',
                marginBottom: 8,
                paddingBottom: 8,
                borderBottom: '1px solid #f0f0f0'
            }}>
                {/* 左侧：作者 */}
                <Space size={4}>
                    <UserOutlined style={{ color: '#1890ff', fontSize: 12 }} />
                    <Text style={{ fontSize: 12, color: '#595959' }}>
                        {citation.author}
                    </Text>
                </Space>

                {/* 右侧：发布日期（重点标注） */}
                <Space size={4}>
                    <CalendarOutlined style={{ color: '#fa8c16', fontSize: 12 }} />
                    <Text
                        strong
                        style={{
                            fontSize: 12,
                            fontWeight: 600,
                            color: '#fa8c16'
                        }}
                    >
                        {citation.declare_date}
                    </Text>
                </Space>
            </div>

            {/* 摘要片段 */}
            <div>
                <Text type="secondary" style={{ fontSize: 11, display: 'block', marginBottom: 4 }}>
                    摘要片段
                </Text>
                <Text
                    style={{
                        fontSize: 12,
                        lineHeight: 1.5,
                        display: 'block',
                        color: '#595959'
                    }}
                >
                    {citation.sentences}
                </Text>
            </div>
        </div>
    );

    // 检测是否为移动设备
    const isMobile = () => {
        return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
            navigator.userAgent
        );
    };

    // 移动端：仅点击触发
    // 桌面端：悬浮 + 点击都触发
    const triggerType = isMobile() ? 'click' : ['hover', 'click'];

    return (
        <Popover
            content={citationContent}
            title={`引用来源 [${citationId}]`}
            trigger={triggerType}
            placement="top"
            overlayInnerStyle={{ maxWidth: 340, padding: '8px' }}
            open={popoverVisible}
            onOpenChange={setPopoverVisible}
        >
            <sup
                style={{
                    display: 'inline-block',
                    color: '#1890ff',
                    fontWeight: 'bold',
                    cursor: 'pointer',
                    padding: '0 2px',
                    fontSize: '0.85em',
                    userSelect: 'none',
                    transition: 'all 0.2s',
                }}
                onMouseEnter={(e) => {
                    if (!isMobile()) {
                        e.target.style.color = '#40a9ff';
                        e.target.style.textDecoration = 'underline';
                    }
                }}
                onMouseLeave={(e) => {
                    if (!isMobile()) {
                        e.target.style.color = '#1890ff';
                        e.target.style.textDecoration = 'none';
                    }
                }}
                onClick={() => {
                    setPopoverVisible(!popoverVisible);
                }}
            >
                【{citationId}】
            </sup>
        </Popover>
    );
};

export default CitationMark;