//公共js，主要做表单验证，以及基本方法封装
const utils = {
	isNullOrEmpty: function(value) {
		//是否为空
		return (value === null || value === '' || value === undefined) ? true : false;
	},
	trim: function(value) {
		//去空格
		return value.replace(/(^\s*)|(\s*$)/g, "");
	},
	isEmail: function(value){
		//是否为邮箱
		 return RegExp(/^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/).test(value);
	},
	isMobile: function(value) {
		//是否为手机号
		return RegExp(/^1[1-9][0-9]{9}$/).test(value);
	},
	isFloat: function(value) {
		//金额，只允许保留两位小数
		return RegExp(/^([0-9]*[.]?[0-9])[0-9]{0,1}$/).test(value);
	},
	isNum: function(value) {
		//是否全为数字
		return RegExp(/^[0-9]+$/).test(value);
	},
	isEmailCode:function(value) {
	    return RegExp(/^\d{4}$/).test(value);
	},
	isMobileCode:function(value) {
	    return RegExp(/^\d{6}$/).test(value);
	},
	isCredit:function(value) {//统一社会信用代码
	    return RegExp(/^[0-9A-HJ-NPQRTUWXY]{2}\\d{6}[0-9A-HJ-NPQRTUWXY]{10}$/).test(value);
	},
	checkPwd: function(value) {
		//密码为8~20位数字和字母组合
		return RegExp(/^(?![0-9]+$)(?![a-zA-Z]+$)[0-9A-Za-z]{8,16}$/).test(value);
	},
	hidePhone:function(value) {
		return value.replace(/^(\d{3})\d{4}(\d+)/,"$1****$2")
	},
	interceptHtmlFn: function(value){
		return value.replace(/<[^>]+>/g,"")
	},
	desensitizationName:function(value){
		if(null != value && value != undefined){
			if(value.length <= 3){
				let ruten = value.substring(1);
				return value.replace(ruten,'**');
			} else if(value.length > 3 && value.length <= 6){
				let ruten = value.substring(2);
				return value.replace(ruten,'**');
			} 
		} else {
			return "";
		}
	},
	formatNum: function(num) {
		//格式化手机号码
		if (utils.isMobile(num)) {
			num = num.replace(/^(\d{3})\d{4}(\d{4})$/, '$1****$2')
		}
		return num;
	},
	rmoney: function(money) {
		//金额格式化
		return parseFloat(money).toFixed(2).toString().split('').reverse().join('').replace(/(\d{3})/g, '$1,').replace(
			/\,$/, '').split('').reverse().join('');
	},
	bankRegex:function(num){
		let bankNum = ''
		bankNum = num.replace(/\D/g, '').replace(/(....)(?=.)/g, '$1 ');
		return bankNum
	},
	checkData:function(value){
		let data;
		if(value == null || value ==""){
			data = ''
		}else{
			data = value
		}
		return data
	},
	formatDate: function(formatStr, fdate) {
		//日期格式化
		if (fdate) {
			if (~fdate.indexOf('.')) {
				fdate = fdate.substring(0, fdate.indexOf('.'));
			}
			fdate = fdate.toString().replace('T', ' ').replace(/\-/g, '/');
			var fTime, fStr = 'ymdhis';
			if (!formatStr)
				formatStr = "y-m-d h:i:s";
			if (fdate)
				fTime = new Date(fdate);
			else
				fTime = new Date();
			var month = fTime.getMonth() + 1;
			var day = fTime.getDate();
			var hours = fTime.getHours();
			var minu = fTime.getMinutes();
			var second = fTime.getSeconds();
			month = month < 10 ? '0' + month : month;
			day = day < 10 ? '0' + day : day;
			hours = hours < 10 ? ('0' + hours) : hours;
			minu = minu < 10 ? '0' + minu : minu;
			second = second < 10 ? '0' + second : second;
			var formatArr = [
				fTime.getFullYear().toString(),
				month.toString(),
				day.toString(),
				hours.toString(),
				minu.toString(),
				second.toString()
			]
			for (var i = 0; i < formatArr.length; i++) {
				formatStr = formatStr.replace(fStr.charAt(i), formatArr[i]);
			}
			return formatStr;
		} else {
			return "";
		}
	},
	throttle: function(fn, gapTime) {
	  if (gapTime == null || gapTime == undefined) {
	    gapTime = 1500
	  }
	
	  let _lastTime = null
	
	  // 返回新的函数
	  return function () {
	    let _nowTime = +new Date()
	    if (_nowTime - _lastTime > gapTime || !_lastTime) {
	      fn.apply(this, arguments) //将this和参数传给原函数
	      _lastTime = _nowTime
	    }
	  }
	},
	
	debounce: function(fn, delay, isImmediate) {
	  var timer = null;  //初始化timer，作为计时清除依据
	  return function() {
	    var context = this;  //获取函数所在作用域this
	    var args = arguments;  //取得传入参数
	    clearTimeout(timer);
	    if(isImmediate && timer === null) {
	        //时间间隔外立即执行
	        fn.apply(context,args);
	      timer = 0;
	      return;
	    }
	    timer = setTimeout(function() {
	      fn.apply(context,args);
	      timer = null;
	    }, delay);
	  }
	}

}

module.exports = {
	isNullOrEmpty: utils.isNullOrEmpty,
	trim: utils.trim,
	isMobile: utils.isMobile,
	isEmail: utils.isEmail,
	isFloat: utils.isFloat,
	isNum: utils.isNum,
	isEmailCode:utils.isEmailCode,
	isMobileCode:utils.isMobileCode,
	checkPwd: utils.checkPwd,
	formatNum:utils.formatNum,
	rmoney: utils.rmoney,
	formatDate: utils.formatDate,
	bankRegex: utils.bankRegex,
	checkData:utils.checkData,
	hidePhone:utils.hidePhone,
	interceptHtmlFn:utils.interceptHtmlFn,
	desensitizationName:utils.desensitizationName,
	throttle: utils.throttle,
	debounce: utils.debounce
}