lanecarford_front/src/utils/tools.ts

function getUniversalZoomLevel() {
	// 现代浏览器方案
	if (window.visualViewport) {
		return window.visualViewport.scale;
	}
	// 备用方案1
	if (window.devicePixelRatio) {
		return window.devicePixelRatio;
	}
	// 备用方案2（不精确）
	return window.outerWidth / window.innerWidth;
}
const getMousePosition = (e: any, bor: any) => {
	// if(e?.stopPropagation)e.stopPropagation()
	// if(e?.preventDefault)e.preventDefault();
	let event: any
	if (bor) {
		const touch = e.changedTouches[0] as any;
		event = {
			offsetX: touch.clientX - e.target.getBoundingClientRect().left,
			offsetY: touch.clientY - e.target.getBoundingClientRect().top,
			clientX: touch.clientX,
			clientY: touch.clientY,
			screenX: touch.screenX,
			screenY: touch.screenY,
			target: e.target,
		}
		// if(dom){
		// 	event.offsetX = touch.clientX - dom.getBoundingClientRect().left
		// 	event.offsetY = touch.clientY - dom.getBoundingClientRect().top
		// }
	} else {
		event = {
			offsetX: e.offsetX,
			offsetY: e.offsetY,
			clientX: e.clientX,
			clientY: e.clientY,
			screenX: e.screenX,
			screenY: e.screenY,
			target: e.target,
		}
	}
	return event
}
/**
 * 生成UUID v4
 * @returns 返回一个标准的UUID v4字符串，格式：xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
 */
export function generateUUID(): string {
	// 优先使用现代浏览器的crypto.randomUUID()方法
	if (typeof crypto !== 'undefined' && crypto.randomUUID) {
		return crypto.randomUUID()
	}
	
	// 备用方案：手动生成UUID v4
	return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
		const r = Math.random() * 16 | 0
		const v = c === 'x' ? r : (r & 0x3 | 0x8)
		return v.toString(16)
	})
}

export {
	getUniversalZoomLevel,
	getMousePosition,
}


/** 时间格式化-自定义格式
 * @param value 时间对象|时间戳|时间字符串
 * @param format 格式化字符串，默认值为 'yyyy-MM-dd HH:mm:ss'
 * @returns 格式化后的时间字符串
 */
export function FormatDate(value: Date | number | string, format: string = 'yyyy-MM-dd HH:mm:ss') {
	const date = new Date(value);
	const yyyy = String(date.getFullYear());
	const yy = String(date.getFullYear()).slice(-2);
	const MM = String(date.getMonth() + 1).padStart(2, '0');
	const M = String(date.getMonth() + 1);
	const dd = String(date.getDate()).padStart(2, '0');
	const d = String(date.getDate());
	const HH = String(date.getHours()).padStart(2, '0');
	const H = String(date.getHours());
	const mm = String(date.getMinutes()).padStart(2, '0');
	const m = String(date.getMinutes());
	const ss = String(date.getSeconds()).padStart(2, '0');
	const s = String(date.getSeconds());
	const str = format.replaceAll('yyyy', yyyy)
		.replaceAll('yy', yy)
		.replaceAll('MM', MM)
		.replaceAll('M', M)
		.replaceAll('dd', dd)
		.replaceAll('d', d)
		.replaceAll('HH', HH)
		.replaceAll('H', H)
		.replaceAll('mm', mm)
		.replaceAll('m', m)
		.replaceAll('ss', ss)
		.replaceAll('s', s);
	return str;
}


/**
 * 下载图片
 * @param list 图片列表
 * @param onProgress 下载进度回调
 * @param onError 下载错误回调
 * @param onSuccess 下载成功回调
*/
export async function DownloadImages(list: Array<{ url: string, name?: string }>, onProgress?: (count: number, total: number, item: any) => void, onError?: (count: number, total: number, item: any) => void, onSuccess?: (successCount: number, errCount: number) => void) {
	const total = list.length;
	let count = 0;
	let successCount = 0;
	let errCount = 0;
	for (let i = 0; i < list.length; i++) {
		await new Promise((resolve) => {
			const xhr = new XMLHttpRequest();
			xhr.open("GET", list[i].url);
			xhr.responseType = "blob"
			xhr.onload = function () {
				count++;
				if (this.status === 200) {
					const blob = this.response;
					const a = document.createElement('a');
					a.href = URL.createObjectURL(blob);
					a.download = list[i].name || list[i].url.split('/').pop().split('?').shift();
					a.click();
					successCount++;
					typeof onProgress === "function" && onProgress(count, total, list[i]);
					resolve(blob);
				} else {
					errCount++;
					typeof onError === "function" && onError(count, total, list[i]);
					resolve(true);
				}
			};
			xhr.onerror = function () {
				count++;
				errCount++;
				typeof onError === "function" && onError(count, total, list[i]);
				resolve(true);
			};
			xhr.send();
		})
	}
	typeof onSuccess === "function" && onSuccess(successCount, errCount);
}