// 获取 `keywords` 标签
const keywordsTag = document.querySelector("head>meta[name='keywords']");
// 获取 `description` 标签
const descriptionTag = document.querySelector("head>meta[name='description']");
// 获取 `title` 标签
const title = document.querySelector('head>title');
// 获取 `favicon` 标签
const faviconIcon = document.querySelector("head>link[rel='icon']");

const briefCorpName = window.globalConfig.SoftWareInfo.globalTitle;
const sysName = window.globalConfig.SoftWareInfo.globalViceTitle;
const icon = window.globalConfig.SoftWareInfo.favicon;

keywordsTag.content = `${briefCorpName}，${sysName}`;
descriptionTag.content = `${briefCorpName}，${sysName}`;
title.innerText = sysName;
faviconIcon.href = icon + `?v=1`;

//#region ====================== LCP Promise ======================
const loadBaseLCP = new Promise((resolve, reject) => {
	try {
		// 检查是否支持 PerformanceObserver 和 LCP 指标
		if ('PerformanceObserver' in window && PerformanceObserver.supportedEntryTypes.includes('largest-contentful-paint')) {
			const observer = new PerformanceObserver((list) => {
				window.list = list.getEntries();
				for (const entry of list.getEntries()) {
					resolve(entry);
					observer.disconnect(); // 完成后断开观察者
				}
			});
			observer.observe({ type: 'largest-contentful-paint', buffered: true });
		} else {
			// 不支持时 使用onLoad 加载
			window.addEventListener('load', () => {
				resolve(true);
			});
		}
	} catch (error) {
		reject(error);
	}
});
//#endregion

//#region ====================== 加载script ======================

function loadScript(src, callback) {
	const script = document.createElement('script');
	script.setAttribute('type', 'text/javascript');
	script.setAttribute('src', src);
	script.async = true;
	script.onload = () => callback();
	script.onerror = () => callback(new Error(`Failed to load ${src}`));
	document.head.appendChild(script);
}
window.eventList = {};

loadBaseLCP.then(() => {
	window.eventList.amisSdkJsPromise = new Promise((resolve, reject) => {
		loadScript('/static/amis/sdk/sdk.js', (error) => {
			if (error) {
				reject(error);
				return;
			}
			resolve();
		});
	});
});

//#endregion

//#region ====================== 加载样式 ======================
function loadStyles(styles) {
	for (const path of styles) {
		const style = document.createElement('link');
		style.setAttribute('rel', 'stylesheet');
		style.setAttribute('type', 'text/css');
		style.setAttribute('href', path);
		// 设置 print 可以避免阻塞页面渲染
		style.setAttribute('media', 'print');
		style.onload = () => {
			style.setAttribute('media', 'all');
		};
		document.head.appendChild(style);
	}
}

loadBaseLCP.then(() => {
	loadStyles(['/static/amis/sdk/sdk.css', '/static/amis/sdk/helper.css', '/static/amis/sdk/iconfont.css']);

});

//#endregion