export class FsUtils {

    private static unit = ["K", "M", "B", "T",
        "aa", "bb", "cc", "dd", "ee", "ff", "gg", "hh",
        "ii", "jj", "kk", "ll", "mm", "nn", "oo", "pp",
        "qq", "rr", "ss", "tt", "uu", "vv", "ww",
        "xx", "yy", "zz",
        "AA", "BB", "CC", "DD", "EE", "FF", "GG", "HH",
        "II", "JJ", "KK", "LL", "MM", "NN", "OO", "PP",
        "QQ", "RR", "SS", "TT", "UU", "VV", "WW",
        "XX", "YY", "ZZ"
    ];
    /**
     * 金币格式化
     * @param num
     */
    public static moneyFormat(num: number) {
        if (num < 1000) {
            return num + '';
        }
        let newNumStr = this.formateHugeNumberToString(num);
        let result = "";
        let n = newNumStr.match(/^\d+(?:\.\d{0,2})?/);
        let numStr = n.toString();
        let len = numStr.length;
        let dec = len % 3;

        let times = (len - dec) / 3;
        let inx = times - 1;

        if (dec === 0) {
            times--;
            inx--;
        }
        let dot = len - times * 3;
        result = numStr.slice(0, dot) + "." + numStr.slice(dot, dot + 2) + this.unit[inx];
        return result;
    }
    /**
     * 神石数值格式化
     * @param num
     */
    public static goldFormat(num: number) {
        if (num < 100000) {
            return num + '';
        }
        let newNumStr = this.formateHugeNumberToString(num);
        let result = "";
        let n = newNumStr.match(/^\d+(?:\.\d{0,2})?/);
        let numStr = n.toString();
        let len = numStr.length;
        let dec = len % 3;

        let times = (len - dec) / 3;
        let inx = times - 1;
        if (dec === 0) {
            times--;
            inx--;
        }
        let dot = len - times * 3;
        result = numStr.slice(0, dot) + "." + numStr.slice(dot, dot + 2) + this.unit[inx];
        return result;
    }


    /**
   * 把巨大的数字变成string
   */
    public static formateHugeNumberToString(value: number): string {
        let power10 = 0;
        while (value > Math.pow(10, 18)) {
            power10 += 10;
            value = Math.floor(value / Math.pow(10, 10));
        }
        let valueStr = value + "";
        for (let i = 0; i < power10; i++) {
            valueStr += "0";
        }
        return valueStr;
    }
    /** 
    * 将数值保留2位小数后格式化成金额形式 
    * @param num 数值(Number或者String)
    * @type {String} 
    */
    public static formatCurrency(num: any, length: number = 2): string {
        num = parseFloat(num);
        var result;
        if (num < 10000) {
            result = this.toFixed(num, 0);
        }
        else if (num < 100000000) {
            var n = num / 10000;
            result = this.isInteger(n) ? n.toString() + "万" : this.toFixed(n, length) + "万";
        }
        else if (num < 1000000000000) {
            var n = num / 100000000;
            result = this.isInteger(n) ? n.toString() + "亿" : this.toFixed(n, length) + "亿";
        }
        else {
            var n = num / 1000000000000;
            result = this.isInteger(n) ? n.toString() + "兆" : this.toFixed(n, length) + "兆";
        }
        return result;
    }
    /**
    * 没有四舍五入的fix方法
    */
    public static toFixed(value: any, length: number): string {
        value = value.toString();
        var pointIndex = value.lastIndexOf(".");
        if (pointIndex == -1) {
            return value;
        }
        if (length > 0) {
            return value.substring(0, pointIndex + length + 1);
        }
        else {
            return value.substring(0, pointIndex + length);
        }
    }
    /**
    * 判断是否是整型
    */
    public static isInteger(x: number): boolean {
        return x % 1 === 0;
    }

    /**
     * 时间格式
    */
    public static dateFormat(time: number): string {
        let dt = new Date(time);
        let y = dt.getFullYear();
        let _m = dt.getMonth() + 1;
        let m = _m < 10 ? "0" + _m : _m;
        let _d = dt.getDate();
        let d = _d < 10 ? "0" + _d : _d;
        let _h = dt.getHours();
        let h = _h < 10 ? "0" + _h : _h;
        let _minutes = dt.getMinutes();
        let minutes = _minutes < 10 ? "0" + _minutes : _minutes;
        let _s = dt.getSeconds();
        let s = _s < 10 ? "0" + _s : _s;
        return y + "年" + m + "月" + d + "日" + "  " + h + "时" + minutes + "分" + s + "秒";
    }

    /**金币计算 */
    public static formateHugeNumber(value: number): { value: number, power10: number } {
        let power10 = 0;
        while (value > Math.pow(10, 18)) {
            power10 += 10;
            value = Math.floor(value / Math.pow(10, 10));
        }
        return { value: value, power10: power10 };
    }
    /**超长名字格式化 */
    public static beautySub(str, len) {
        var reg = /[\u4e00-\u9fa5]/g,    //专业匹配中文
            slice = str.substring(0, len),
            chineseCharNum = (~~(slice.match(reg) && slice.match(reg).length)),
            realen = slice.length * 2 - chineseCharNum;
        return str.substr(0, realen) + (realen < str.length ? "..." : "");
    }
    /**
     * 今日的0点秒数
     */
    public static getTodayTime() {
        var date = new Date();
        return new Date(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0).getTime() / 1000;
    }

    /**
     * 格式化倒计时
     */
    public static formatBattleTime(time: number): string {
        let day = Math.floor(time / 3600 / 24);
        let h = Math.floor(time / 3600 % 24) < 10 ? Math.floor(time / 3600 % 24) : Math.floor(time / 3600 % 24);
        let m = Math.floor(time / 60 % 60) < 10 ? Math.floor(time / 60 % 60) : Math.floor(time / 60 % 60);
        let s = Math.floor(time % 60) < 10 ? Math.floor(time % 60) : Math.floor(time % 60);
        let result = "";
        if (day > 0) {
            result = day + "天" + h + "时" + m + "分" + s + "秒";
        } else if (h > 0) {
            result = h + "时" + m + "分" + s + "秒";
        } else if (m > 0) {
            result = m + "分" + s + "秒";
        } else {
            result = s + "秒";
        }
        return result;
    }
}