64f1ccd2d8
P0: HeroPanel 懒加载 - ✅ 完成 P0/P1: Charts/FullCalendar 懒加载 - ✅ 已通过路由懒加载隔离，无需额外处理 删除空的 CSS 文件
232 lines
7.4 KiB
JavaScript
Executable File
232 lines
7.4 KiB
JavaScript
Executable File
/**
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=========================================================
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Vision UI PRO React - v1.0.0
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=========================================================
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Product Page: https://www.creative-tim.com/product/vision-ui-dashboard-pro-react
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Copyright 2021 Creative Tim (https://www.creative-tim.com/)
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Design and Coded by Simmmple & Creative Tim
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=========================================================
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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Visionware.
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*/
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import React, { useEffect, useRef } from "react";
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import { useDispatch } from 'react-redux';
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import { useLocation } from 'react-router-dom';
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// Routes
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import AppRoutes from './routes';
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// Providers
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import AppProviders from './providers/AppProviders';
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// Components
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import GlobalComponents from './components/GlobalComponents';
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import { PerformancePanel } from './components/PerformancePanel';
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// Hooks
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import { useGlobalErrorHandler } from './hooks/useGlobalErrorHandler';
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// Redux
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// ⚡ PostHog 延迟加载：移除同步导入，首屏减少 ~180KB
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// import { initializePostHog } from './store/slices/posthogSlice';
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import { updateScreenSize } from './store/slices/deviceSlice';
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import { injectReducer } from './store';
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// Utils
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import { logger } from './utils/logger';
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import { performanceMonitor } from './utils/performanceMonitor';
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// ⚡ PostHog 延迟加载：移除同步导入
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// import { trackEvent, trackEventAsync } from '@lib/posthog';
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// Contexts
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import { useAuth } from '@contexts/AuthContext';
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// ⚡ PostHog 延迟加载模块（动态导入后缓存）
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let posthogModule = null;
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let posthogSliceModule = null;
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/**
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* ⚡ 延迟加载 PostHog 模块
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* 返回 { trackEvent, trackEventAsync, initializePostHog, posthogReducer }
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*/
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const loadPostHogModules = async () => {
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if (posthogModule && posthogSliceModule) {
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return { posthogModule, posthogSliceModule };
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}
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try {
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const [posthog, posthogSlice] = await Promise.all([
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import('@lib/posthog'),
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import('./store/slices/posthogSlice'),
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]);
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posthogModule = posthog;
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posthogSliceModule = posthogSlice;
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return { posthogModule, posthogSliceModule };
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} catch (error) {
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logger.error('App', 'PostHog 模块加载失败', error);
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return null;
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}
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};
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/**
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* ⚡ 异步追踪事件（延迟加载 PostHog 后调用）
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* @param {string} eventName - 事件名称
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* @param {object} properties - 事件属性
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*/
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const trackEventLazy = async (eventName, properties = {}) => {
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// 等待模块加载完成
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if (!posthogModule) {
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const modules = await loadPostHogModules();
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if (!modules) return;
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}
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// 使用异步追踪，不阻塞主线程
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posthogModule.trackEventAsync(eventName, properties);
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};
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/**
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* AppContent - 应用核心内容
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* 负责 PostHog 初始化和渲染路由
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*/
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function AppContent() {
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const dispatch = useDispatch();
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const location = useLocation();
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const { isAuthenticated } = useAuth();
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// ✅ 使用 Ref 存储页面进入时间和路径（避免闭包问题）
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const pageEnterTimeRef = useRef(Date.now());
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const currentPathRef = useRef(location.pathname);
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// 🎯 ⚡ PostHog 延迟加载 + Redux 初始化（首屏不加载 ~180KB）
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useEffect(() => {
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// ⚡ 延迟 2 秒加载 PostHog 模块，确保首屏渲染不被阻塞
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const timer = setTimeout(async () => {
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try {
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const modules = await loadPostHogModules();
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if (!modules) return;
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const { posthogSliceModule } = modules;
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// 动态注入 PostHog reducer
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injectReducer('posthog', posthogSliceModule.default);
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// 初始化 PostHog
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dispatch(posthogSliceModule.initializePostHog());
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logger.info('App', 'PostHog 模块延迟加载完成，Redux 初始化已触发');
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} catch (error) {
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logger.error('App', 'PostHog 延迟加载失败', error);
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}
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}, 2000);
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return () => clearTimeout(timer);
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}, [dispatch]);
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// ⚡ 性能监控：标记 React 初始化完成
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useEffect(() => {
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performanceMonitor.mark('react-ready');
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}, []);
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// 📱 设备检测：监听窗口尺寸变化
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useEffect(() => {
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let resizeTimer;
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const handleResize = () => {
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// 防抖：避免频繁触发
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clearTimeout(resizeTimer);
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resizeTimer = setTimeout(() => {
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dispatch(updateScreenSize());
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}, 150);
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};
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window.addEventListener('resize', handleResize);
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window.addEventListener('orientationchange', handleResize);
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return () => {
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clearTimeout(resizeTimer);
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window.removeEventListener('resize', handleResize);
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window.removeEventListener('orientationchange', handleResize);
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};
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}, [dispatch]);
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// ✅ 首次访问追踪
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useEffect(() => {
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const hasVisited = localStorage.getItem('has_visited');
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if (!hasVisited) {
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const urlParams = new URLSearchParams(location.search);
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// ⚡ 使用延迟加载的异步追踪，不阻塞页面渲染
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trackEventLazy('first_visit', {
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referrer: document.referrer || 'direct',
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utm_source: urlParams.get('utm_source'),
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utm_medium: urlParams.get('utm_medium'),
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utm_campaign: urlParams.get('utm_campaign'),
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landing_page: location.pathname,
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timestamp: new Date().toISOString()
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});
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localStorage.setItem('has_visited', 'true');
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}
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}, [location.search, location.pathname]);
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// ✅ 页面浏览时长追踪
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useEffect(() => {
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// 计算上一个页面的停留时长
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const calculateAndTrackDuration = () => {
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const exitTime = Date.now();
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const duration = Math.round((exitTime - pageEnterTimeRef.current) / 1000); // 秒
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// 只追踪停留时间 > 1 秒的页面（过滤快速跳转）
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if (duration > 1) {
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// ⚡ 使用延迟加载的异步追踪，不阻塞页面切换
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trackEventLazy('page_view_duration', {
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path: currentPathRef.current,
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duration_seconds: duration,
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is_authenticated: isAuthenticated,
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timestamp: new Date().toISOString()
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});
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}
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};
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// 路由切换时追踪上一个页面的时长
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if (currentPathRef.current !== location.pathname) {
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calculateAndTrackDuration();
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// 更新为新页面
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currentPathRef.current = location.pathname;
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pageEnterTimeRef.current = Date.now();
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}
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// 页面关闭/刷新时追踪时长
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const handleBeforeUnload = () => {
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calculateAndTrackDuration();
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};
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window.addEventListener('beforeunload', handleBeforeUnload);
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return () => {
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window.removeEventListener('beforeunload', handleBeforeUnload);
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};
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}, [location.pathname, isAuthenticated]);
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return <AppRoutes />;
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}
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/**
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* App - 应用根组件
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* 设置全局错误处理,提供 Provider 和全局组件
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*/
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export default function App() {
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// 全局错误处理
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useGlobalErrorHandler();
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return (
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<AppProviders>
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<AppContent />
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<GlobalComponents />
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<PerformancePanel />
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</AppProviders>
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);
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} |