var SIGN_REGEXP = /([yMdhsm])(\1*)/g;
var DEFAULT_PATTERN = 'yyyy-MM-dd';

function padding(s, len) {
    var len = len - (s + '').length;
    for (var i = 0; i < len; i++) { s = '0' + s; }
    return s;
};

export function filterMoney(value, num = 0) {
    num = num > 0 && num <= 20 ? num : 0;
    value = parseFloat((value + "").replace(/[^\d\.-]/g, ""))+ ""; //将金额转成比如 123.45的字符串
    var valueArr = value.split(".")[0].split("").reverse() //将字符串的数变成数组
    let valueString = "";
    for (let i = 0; i < valueArr.length; i++) {
        valueString += valueArr[i] + ((i + 1) % 3 == 0 && (i + 1) != valueArr.length ? "," : ""); //循环 取数值并在每三位加个','
    }
    const money = valueString.split("").reverse().join(""); //拼接上小数位
    return money
}

export default {
    getQueryStringByName: function (name) {
        var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
        var r = window.location.search.substr(1).match(reg);
        var context = "";
        if (r != null)
            context = r[2];
        reg = null;
        r = null;
        return context == null || context == "" || context == "undefined" ? "" : context;
    },
    //时间撮格式化
    formatDatee(time){
        let date = new Date(time), //时间戳为10位需*1000，时间戳为13位的话不需乘1000
            Y = date.getFullYear() + '-',
            M = (date.getMonth()+1 < 10 ? '0'+(date.getMonth()+1) : date.getMonth()+1) + '-',
            D = date.getDate() < 10 ? '0'+ date.getDate() + ' ' : date.getDate() + ' ',
            h = date.getHours() + ':',
            m = date.getMinutes() < 10 ? '0'+ date.getMinutes() + ':' : date.getMinutes() + ':',
            s = date.getSeconds() < 10 ? '0'+ date.getSeconds() : date.getSeconds();
        return Y + M + D + h + m + s;
    },
    formatDate: {
        format: function (date, pattern) {
            pattern = pattern || DEFAULT_PATTERN;
            return pattern.replace(SIGN_REGEXP, function ($0) {
                switch ($0.charAt(0)) {
                    case 'y': return padding(date.getFullYear(), $0.length);
                    case 'M': return padding(date.getMonth() + 1, $0.length);
                    case 'd': return padding(date.getDate(), $0.length);
                    case 'w': return date.getDay() + 1;
                    case 'h': return padding(date.getHours(), $0.length);
                    case 'm': return padding(date.getMinutes(), $0.length);
                    case 's': return padding(date.getSeconds(), $0.length);
                }
            });
        },
        parse: function (dateString, pattern) {
            var matchs1 = pattern.match(SIGN_REGEXP);
            var matchs2 = dateString.match(/(\d)+/g);
            if (matchs1.length == matchs2.length) {
                var _date = new Date(1970, 0, 1);
                for (var i = 0; i < matchs1.length; i++) {
                    var _int = parseInt(matchs2[i]);
                    var sign = matchs1[i];
                    switch (sign.charAt(0)) {
                        case 'y': _date.setFullYear(_int); break;
                        case 'M': _date.setMonth(_int - 1); break;
                        case 'd': _date.setDate(_int); break;
                        case 'h': _date.setHours(_int); break;
                        case 'm': _date.setMinutes(_int); break;
                        case 's': _date.setSeconds(_int); break;
                    }
                }
                return _date;
            }
            return null;
        }
    },
};