// src/views/Community/components/PopularKeywords.js
import React, { useState, useEffect } from 'react';
import { Tag, Space, Button } from 'antd';
import { useNavigate } from 'react-router-dom';
import { RightOutlined } from '@ant-design/icons';
import { logger } from '../../../utils/logger';

// 使用相对路径，让 MSW 在开发环境可以拦截请求
const API_BASE_URL = '/concept-api';

// 获取域名前缀
const DOMAIN_PREFIX = process.env.NODE_ENV === 'production'
    ? ''
    : 'https://valuefrontier.cn';

const PopularKeywords = ({ onKeywordClick, keywords: propKeywords }) => {
    const [keywords, setKeywords] = useState([]);
    const navigate = useNavigate();

    // 加载热门概念（涨幅前20）
    const loadPopularConcepts = async () => {
        try {
            const response = await fetch(`${API_BASE_URL}/search`, {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                },
                body: JSON.stringify({
                    query: '',  // 空查询获取所有概念
                    size: 20,   // 获取前20个
                    page: 1,
                    sort_by: 'change_pct'  // 按涨跌幅排序
                })
            });

            const data = await response.json();

            if (data.results) {
                // 转换数据格式
                const formattedData = data.results.map(item => ({
                    keyword: item.concept,
                    count: item.stock_count,
                    change_pct: item.price_info?.avg_change_pct || 0,
                    concept_id: item.concept_id
                }));
                setKeywords(formattedData);
                logger.debug('PopularKeywords', '热门概念加载成功（自己请求）', {
                    count: formattedData.length
                });
            }
        } catch (error) {
            logger.error('PopularKeywords', 'loadPopularConcepts', error);
            setKeywords([]);
        }
    };

    // 处理从父组件传入的数据
    useEffect(() => {
        if (propKeywords && propKeywords.length > 0) {
            // 使用父组件传入的数据
            setKeywords(propKeywords);
            logger.debug('PopularKeywords', '使用父组件传入的数据', {
                count: propKeywords.length
            });
        } else {
            // 没有 prop 数据，自己加载
            loadPopularConcepts();
        }
    }, [propKeywords]);

    // 根据涨跌幅获取标签颜色
    const getTagColor = (changePct) => {
        if (changePct > 5) return 'red';
        if (changePct > 3) return 'volcano';
        if (changePct > 1) return 'orange';
        if (changePct > 0) return 'gold';
        if (changePct === 0) return 'default';
        if (changePct > -1) return 'lime';
        if (changePct > -3) return 'green';
        if (changePct > -5) return 'cyan';
        return 'blue';
    };

    // 格式化涨跌幅显示
    const formatChangePct = (pct) => {
        if (pct === null || pct === undefined) return '';
        const formatted = pct.toFixed(2);
        if (pct > 0) return `+${formatted}%`;
        return `${formatted}%`;
    };

    // ✅ 修复：处理概念标签点击
    const handleConceptClick = (concept) => {
        // 优先调用父组件传入的回调（用于搜索框显示和触发搜索）
        if (onKeywordClick) {
            onKeywordClick(concept.keyword);
            logger.debug('PopularKeywords', '调用 onKeywordClick 回调', {
                keyword: concept.keyword
            });
        } else {
            // 如果没有回调，则跳转到对应概念的页面（原有行为）
            const url = `${DOMAIN_PREFIX}/htmls/${encodeURIComponent(concept.keyword)}.html`;
            window.open(url, '_blank');
            logger.debug('PopularKeywords', '跳转到概念页面', {
                keyword: concept.keyword,
                url
            });
        }
    };

    // 处理"更多概念"按钮点击 - 跳转到概念中心
    const handleMoreClick = () => {
        navigate('/concepts');
    };

    return (
        <>
            {keywords && keywords.length > 0 && (
                <div style={{ position: 'relative' }}>
                    <Space
                        size={[6, 6]}
                        wrap
                        style={{
                            alignItems: 'center',
                            maxHeight: '29px', // 约两行的高度 (每行约28-30px)
                            overflow: 'hidden',
                            paddingRight: '90px' // 为右侧按钮留出空间
                        }}
                    >
                        {/* 标题 */}
                        <span style={{
                            color: '#ff4d4f',
                            fontSize: 13,
                            fontWeight: 500,
                            marginRight: 4
                        }}>
                            热门概念:
                        </span>

                        {/* 所有标签 */}
                        {keywords.map((item, index) => (
                            <Tag
                                key={item.concept_id || `keyword-${index}`}
                                color={getTagColor(item.change_pct)}
                                style={{
                                    cursor: 'pointer',
                                    padding: '1px 6px',
                                    fontSize: 12,
                                    transition: 'all 0.3s',
                                    margin: 0
                                }}
                                onClick={() => handleConceptClick(item)}
                                onMouseEnter={(e) => {
                                    e.currentTarget.style.transform = 'scale(1.05)';
                                    e.currentTarget.style.boxShadow = '0 2px 8px rgba(0,0,0,0.15)';
                                }}
                                onMouseLeave={(e) => {
                                    e.currentTarget.style.transform = 'scale(1)';
                                    e.currentTarget.style.boxShadow = 'none';
                                }}
                            >
                                <span>{item.keyword}</span>
                                <span style={{
                                    marginLeft: 4,
                                    fontWeight: 'bold'
                                }}>
                                    {formatChangePct(item.change_pct)}
                                </span>
                                {/* <span style={{
                                    marginLeft: 3,
                                    fontSize: 10,
                                    opacity: 0.75
                                }}> */}
                                    {/* ({item.count}股) */}
                                {/* </span> */}
                            </Tag>
                        ))}
                    </Space>

                    {/* 更多概念按钮 - 固定在第二行右侧 */}
                    <Button
                        type="link"
                        size="small"
                        onClick={handleMoreClick}
                        style={{
                            position: 'absolute',
                            top: 0,
                            right: 0,
                            fontSize: 12,
                            padding: '0 4px',
                            height: 'auto'
                        }}
                    >
                        更多概念 <RightOutlined style={{ fontSize: 10 }} />
                    </Button>
                </div>
            )}
        </>
    );
};

export default PopularKeywords;