let util = {
	isMobile(){
		var sUserAgent = navigator.userAgent.toLowerCase();
		var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
		var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
		var bIsMidp = sUserAgent.match(/midp/i) == "midp";
		var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
		var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
		var bIsAndroid = sUserAgent.match(/android/i) == "android";
		var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
		var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
		if (!(bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM)) {
			return false;
		} else {
			return true;
		}
	},
	isWX(){
	    var ua = navigator.userAgent.toLowerCase();
	    return (/micromessenger/.test(ua)) ? true : false;
	},
	pickPaytype() {
		let isMobile = this.isMobile();
		let isWx = this.isWX();
		//Dictionary : 1: scan qrcode, 2:redirect 3: raise local app
		if(isWx) {
			//return 3;
			return 1;
		}
		if(!isMobile) {
			//Desktop, use native pay
			return 1;
		} else {
			return 2;
		}
	},
	checkPaytypeValidated($paytype) {
		let isMobile = this.isMobile();
		let isWx = this.isWX();
		//Dictionary : 1:WX native pay, 2:Alipay, 3:WX H5 pay
		if((isWx || !isMobile) && $paytype == 1) {
			return {'result':true};
		}
		if(isMobile && !isWx && $paytype == 3) {
			return {'result':true};
		}
		if($paytype == 2) {
			return {'result':true};
		}
		let message='';
		switch($paytype) {
			case "1":
				message = '请返回电脑网页端继续当前订单的支付';
				break;
			case "2":
				message = '请返回支付宝继续当前订单的支付';
				break;
			case "3":
				message = '请返回手机网页端继续当前订单的支付';
				break;
			default:
				message = '订单已过期，请重新下单';
				break;
		}
		return {'result':false,'message':message};
	},
	getTextByPaytype(paytype){
		//Dictionary : 1:WX native pay, 2:Alipay, 3:WX H5 pay
		let mapping = {
			"1":"微信扫码支付",
			"2":"支付宝支付",
			"3":"手机网页支付",
		};
		if(mapping.hasOwnProperty(paytype))
			return mapping[paytype];
		return '';
	}
}
export default util;