66 lines
1.5 KiB
JavaScript
66 lines
1.5 KiB
JavaScript
import {
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getAdvertList
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} from '@/common/server/interface/advert'
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import {
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ref
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} from 'vue';
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// 响应式数据定义
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// 首页核心数据（banner + 通知）
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export const homeData = ref(null);
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// 全局加载状态
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export const isLoading = ref(false);
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// 错误信息
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export const error = ref(null);
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// 缓存控制（防重复请求）
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const CACHE_TIMEOUT = 5 * 60 * 1000; // 5分钟缓存
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let lastLoadTime = 0;
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/**
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* 预加载首页核心数据（banner + 通知+分类）
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*/
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export const preloadHomeData = async () => {
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if (shouldUseCache()) return;
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isLoading.value = true;
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error.value = null;
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try {
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const res = await Promise.all([
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getAdvertList("TplIndexBanner1").catch(() => null),
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]);
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let [advertList] = res;
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// 删除 banner 数据源 createTime和updateTime
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if (advertList) {
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advertList = advertList.map(it => {
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let _it = {
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...it
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};
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delete _it.createTime;
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delete _it.updateTime;
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return _it;
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});
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}
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homeData.value = {
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advertList
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};
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console.log("首页数据源", homeData.value);
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lastLoadTime = Date.now();
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} catch (err) {
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error.value = err;
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console.error('首页数据预加载失败:', err);
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} finally {
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isLoading.value = false;
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}
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};
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// 私有工具函数
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const shouldUseCache = () => {
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return homeData.value && Date.now() - lastLoadTime < CACHE_TIMEOUT;
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}; |