//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)
    },
    isWebsite: function(value){
        //是否为网址
        return RegExp(/^((http|ftp|https):\/\/[a-zA-Z0-9]|[a-zA-Z0-9])[-a-zA-Z0-9]{0,62}(.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+.?$/).test(value)
    },
    isMobile: function(value) {
        //是否为手机号
        return RegExp(/^1[1-9][0-9]{9}$/).test(value)
    },
    isIdCard: function(value) {
        //是否为手机号
        return RegExp(/^[1-9]\d{5}(18|19|20)\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$/).test(value)
    },
    isFloat: function(value) {
        //金额，只允许保留两位小数
        return RegExp(/^([0-9]*[.]?[0-9])[0-9]{0,1}$/).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}$/).test(value)
    },
    isNoChinese: function(value) {//数字和字母组合
        return RegExp(/^[A-Za-z0-9]+$/).test(value)
    },
    hidePhone:function(value) {
        return value.replace(/^(\d{3})\d{4}(\d+)/,'$1****$2')
    },
    interceptHtmlFn: function(value){
        return value ? value.replace(/<[^>]+>/g,'') : value
    },
    desensitizationName:function(value){
        if(null != value && value != undefined){
            if(value.length <= 3){
                let ruten = value.substring(1)
                return value.replace(ruten,'**')
            } else if(value.length > 3 && value.length <= 6){
                let ruten = value.substring(2)
                return value.replace(ruten,'**')
            } 
        } else {
            return ''
        }
    },
    formatNum: function(num) {
        //格式化手机号码
        if (utils.isMobile(num)) {
            num = num.replace(/^(\d{3})\d{4}(\d{4})$/, '$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
    },
    formatAccMul:function(value1, value2) {// 修复数额丢失精度
	    if (value1 == 0 || value2 == 0) {
	      return 0
	    }
	    let m = 0
	    let v1 = value1.toString()
	    let v2 = value2.toString()
	    m += v1.split('.')[1] ? v1.split('.')[1].length : 0
	    m += v2.split('.')[1] ? v2.split('.')[1].length : 0
	    let _v1 = Number(v1.replace('.', ''))
	    let _v2 = Number(v2.replace('.', ''))
	    return (_v1 * _v2) / Math.pow(10, m)
    },
    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,
    isWebsite:utils.isWebsite,
    isIdCard:utils.isIdCard,
    isFloat: utils.isFloat,
    isNum: utils.isNum,
    isEmailCode:utils.isEmailCode,
    isMobileCode:utils.isMobileCode,
    isNoChinese:utils.isNoChinese,
    checkPwd: utils.checkPwd,
    formatNum:utils.formatNum,
    rmoney: utils.rmoney,
    formatDate: utils.formatDate,
    formatAccMul: utils.formatAccMul,
    bankRegex: utils.bankRegex,
    checkData:utils.checkData,
    hidePhone:utils.hidePhone,
    interceptHtmlFn:utils.interceptHtmlFn,
    desensitizationName:utils.desensitizationName,
    throttle: utils.throttle,
    debounce: utils.debounce
}