117 lines
2.7 KiB
JavaScript
117 lines
2.7 KiB
JavaScript
/**
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* 概念涨跌幅静态数据服务
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* 从 /data/concept/ 目录读取预生成的 JSON 文件
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* 不依赖后端 API，适合静态部署
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*/
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// 数据基础路径
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const DATA_BASE_URL = '/data/concept';
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// 内存缓存
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const cache = {
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latest: null,
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dates: null,
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daily: new Map(),
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};
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/**
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* 获取最新的热门概念数据
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* 这是 HeroPanel 滚动窗口的主要数据源
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*/
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export const fetchPopularConcepts = async () => {
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try {
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// 使用缓存
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if (cache.latest) {
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return { success: true, data: cache.latest, from_cache: true };
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}
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const response = await fetch(`${DATA_BASE_URL}/latest.json`);
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if (!response.ok) {
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throw new Error(`HTTP ${response.status}`);
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}
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const data = await response.json();
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// 缓存结果
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cache.latest = data;
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return { success: true, data, from_cache: false };
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} catch (error) {
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console.error('[conceptStaticService] fetchPopularConcepts error:', error);
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return { success: false, error: error.message, data: null };
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}
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};
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/**
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* 获取可用日期列表
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*/
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export const fetchAvailableDates = async () => {
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try {
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// 使用缓存
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if (cache.dates) {
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return { success: true, dates: cache.dates };
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}
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const response = await fetch(`${DATA_BASE_URL}/dates.json`);
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if (!response.ok) {
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throw new Error(`HTTP ${response.status}`);
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}
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const data = await response.json();
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// 缓存结果
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cache.dates = data.dates || [];
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return { success: true, dates: cache.dates, total: data.total };
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} catch (error) {
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console.error('[conceptStaticService] fetchAvailableDates error:', error);
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return { success: false, error: error.message, dates: [] };
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}
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};
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/**
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* 获取指定日期的概念数据
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*/
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export const fetchDailyConcepts = async (date) => {
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try {
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// 使用缓存
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if (cache.daily.has(date)) {
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return { success: true, data: cache.daily.get(date), from_cache: true };
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}
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const response = await fetch(`${DATA_BASE_URL}/daily/${date}.json`);
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if (!response.ok) {
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if (response.status === 404) {
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return { success: false, error: `日期 ${date} 的数据不存在` };
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}
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throw new Error(`HTTP ${response.status}`);
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}
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const data = await response.json();
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// 缓存结果
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cache.daily.set(date, data);
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return { success: true, data, from_cache: false };
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} catch (error) {
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console.error('[conceptStaticService] fetchDailyConcepts error:', error);
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return { success: false, error: error.message };
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}
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};
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/**
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* 清除缓存
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*/
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export const clearCache = () => {
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cache.latest = null;
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cache.dates = null;
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cache.daily.clear();
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};
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export default {
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fetchPopularConcepts,
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fetchAvailableDates,
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fetchDailyConcepts,
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clearCache,
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};
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