const uuid = require('uuid');
const moment = require('moment');
const hmacSha1 = require('crypto-js/hmac-sha1');
const base64 = require('crypto-js/enc-base64');
const utf8 = require('crypto-js/enc-utf8');

export default class {

    static upUuid(): string {
        return uuid.v1();
    }

    /**
     * 获取日期 默认返回当前日期
     * 
     * @static
     * @param {string} [sDate] 日期 如果无时为当前日期
     * @param {string} [sFormat] 转换规则  参考monent
     * @returns 
     */
    static upDate(sDate?: string, sFormat?: string): string {

        if (sFormat === undefined) {
            sFormat = "YYYY-MM-DD HH:mm:ss";
        }

        return moment(sDate).format(sFormat);
    }

    /**
     * 获取当前时间戳  注意该结果是以秒为单位的 如果要得到标准unix时间戳 得乘以1000
     * 
     * @static
     * @returns 
     */
    static upNowTimeStamp() {
        return this.upDate(undefined, "X");
    }

    static upNowDay() {
        return this.upDate(undefined, "YYYYMMDD");
    }

    static upGMT(oDate) {
        return oDate.toGMTString();
    }


    static cryptoHmacBase64(sInput, sSecret) {
        return hmacSha1(sInput, sSecret).toString(base64);
    }

    static cryptoBase64Decode(sInput): string {
        return base64.parse(sInput).toString(utf8);
    }

    static cryptoBase64Encode(sInput): string {

        return utf8.parse(sInput).toString(base64);

        // return base64.stringify( base64.parse(sInput));
    }


}