export default class Md5 {    
    x = Array();
    S11 = 7;
    S12 = 12;
    S13 = 17;
    S14 = 22;
    S21 = 5;
    S22 = 9;
    S23 = 14;
    S24 = 20;
    S31 = 4;
    S32 = 11;
    S33 = 16;
    S34 = 23;
    S41 = 6;
    S42 = 10;
    S43 = 15;
    S44 = 21;
    RotateLeft = function (lValue:number, iShiftBits:number) { return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits)); };
    F(x:number, y:number, z:number) { return (x & y) | ((~x) & z); };
    G(x:number, y:number, z:number) { return (x & z) | (y & (~z)); };
    H(x:number, y:number, z:number) { return (x ^ y ^ z); };
    I(x:number, y:number, z:number) { return (y ^ (x | (~z))); };
    
    // init
    a = 0x67452301;
    b = 0xEFCDAB89;
    c = 0x98BADCFE;
    d = 0x10325476;

    _string?:string ;

    constructor() {
    }

    AddUnsigned(lX:number, lY:number) {
        var lX4, lY4, lX8, lY8, lResult;
        lX8 = (lX & 0x80000000);
        lY8 = (lY & 0x80000000);
        lX4 = (lX & 0x40000000);
        lY4 = (lY & 0x40000000);
        lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
        if (!!(lX4 & lY4)) {
            return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
        }
        if (!!(lX4 | lY4)) {
            if (!!(lResult & 0x40000000)) {
                return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
            }
            else {
                return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
            }
        }
        else {
            return (lResult ^ lX8 ^ lY8);
        }
    };
    FF(a:number, b:number, c:number, d:number, x:number, s:number, ac:number) {
        a = this.AddUnsigned(a, this.AddUnsigned(this.AddUnsigned(this.F(b, c, d), x), ac));
        return this.AddUnsigned(this.RotateLeft(a, s), b);
    };
    GG(a:number, b:number, c:number, d:number, x:number, s:number, ac:number) {
        a = this.AddUnsigned(a, this.AddUnsigned(this.AddUnsigned(this.G(b, c, d), x), ac));
        return this.AddUnsigned(this.RotateLeft(a, s), b);
    };
    HH(a:number, b:number, c:number, d:number, x:number, s:number, ac:number) {
        a = this.AddUnsigned(a, this.AddUnsigned(this.AddUnsigned(this.H(b, c, d), x), ac));
        return this.AddUnsigned(this.RotateLeft(a, s), b);
    };
    II(a:number, b:number, c:number, d:number, x:number, s:number, ac:number) {
        a = this.AddUnsigned(a, this.AddUnsigned(this.AddUnsigned(this.I(b, c, d), x), ac));
        return this.AddUnsigned(this.RotateLeft(a, s), b);
    };
    ConvertToWordArray(str:string) {
        var lWordCount, lMessageLength = str.length, lNumberOfWords_temp1 = lMessageLength + 8, lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64, lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16, lWordArray = Array(lNumberOfWords - 1), lBytePosition = 0, lByteCount = 0;
        while (lByteCount < lMessageLength) {
            lWordCount = (lByteCount - (lByteCount % 4)) / 4;
            lBytePosition = (lByteCount % 4) * 8;
            lWordArray[lWordCount] = (lWordArray[lWordCount] | (str.charCodeAt(lByteCount) << lBytePosition));
            lByteCount++;
        }
        lWordCount = (lByteCount - (lByteCount % 4)) / 4;
        lBytePosition = (lByteCount % 4) * 8;
        lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
        lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
        lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
        return lWordArray;
    };
    WordToHex(lValue:number) {
        var WordToHexValue = "", WordToHexValue_temp = "", lByte, lCount;
        for (lCount = 0; lCount <= 3; lCount++) {
            lByte = (lValue >>> (lCount * 8)) & 255;
            WordToHexValue_temp = "0" + lByte.toString(16);
            WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2);
        }
        return WordToHexValue;
    };
    Utf8Encode(str:string) {
        var utftext = "", c;
        str = str.replace(/\r\n/g, "\n");
        for (var n = 0; n < str.length; n++) {
            c = str.charCodeAt(n);
            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if ((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }
        }
        return utftext;
    };
    Uint8ArrayToWordArray(buffer:Uint8Array) {
        var lWordCount, lMessageLength = buffer.length, lNumberOfWords_temp1 = lMessageLength + 8, lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64, lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16, lWordArray = Array(lNumberOfWords - 1), lBytePosition = 0, lByteCount = 0;
        while (lByteCount < lMessageLength) {
            lWordCount = (lByteCount - (lByteCount % 4)) / 4;
            lBytePosition = (lByteCount % 4) * 8;
            lWordArray[lWordCount] = (lWordArray[lWordCount] | (buffer[lByteCount] << lBytePosition));
            lByteCount++;
        }
        lWordCount = (lByteCount - (lByteCount % 4)) / 4;
        lBytePosition = (lByteCount % 4) * 8;
        lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
        lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
        lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
        return lWordArray;
    };
    update(buffer:Uint8Array) {
        this.x = this.Uint8ArrayToWordArray(buffer);
        for (let k = 0; k < this.x.length; k += 16) {
            let AA = this.a;
            let BB = this.b;
            let CC = this.c;
            let DD = this.d;
            this.a = this.FF(this.a, this.b, this.c, this.d, this.x[k], this.S11, 0xD76AA478);
            this.d = this.FF(this.d, this.a, this.b, this.c, this.x[k + 1], this.S12, 0xE8C7B756);
            this.c = this.FF(this.c, this.d, this.a, this.b, this.x[k + 2], this.S13, 0x242070DB);
            this.b = this.FF(this.b, this.c, this.d, this.a, this.x[k + 3], this.S14, 0xC1BDCEEE);
            this.a = this.FF(this.a, this.b, this.c, this.d, this.x[k + 4], this.S11, 0xF57C0FAF);
            this.d = this.FF(this.d, this.a, this.b, this.c, this.x[k + 5], this.S12, 0x4787C62A);
            this.c = this.FF(this.c, this.d, this.a, this.b, this.x[k + 6], this.S13, 0xA8304613);
            this.b = this.FF(this.b, this.c, this.d, this.a, this.x[k + 7], this.S14, 0xFD469501);
            this.a = this.FF(this.a, this.b, this.c, this.d, this.x[k + 8], this.S11, 0x698098D8);
            this.d = this.FF(this.d, this.a, this.b, this.c, this.x[k + 9], this.S12, 0x8B44F7AF);
            this.c = this.FF(this.c, this.d, this.a, this.b, this.x[k + 10], this.S13, 0xFFFF5BB1);
            this.b = this.FF(this.b, this.c, this.d, this.a, this.x[k + 11], this.S14, 0x895CD7BE);
            this.a = this.FF(this.a, this.b, this.c, this.d, this.x[k + 12], this.S11, 0x6B901122);
            this.d = this.FF(this.d, this.a, this.b, this.c, this.x[k + 13], this.S12, 0xFD987193);
            this.c = this.FF(this.c, this.d, this.a, this.b, this.x[k + 14], this.S13, 0xA679438E);
            this.b = this.FF(this.b, this.c, this.d, this.a, this.x[k + 15], this.S14, 0x49B40821);
            this.a = this.GG(this.a, this.b, this.c, this.d, this.x[k + 1], this.S21, 0xF61E2562);
            this.d = this.GG(this.d, this.a, this.b, this.c, this.x[k + 6], this.S22, 0xC040B340);
            this.c = this.GG(this.c, this.d, this.a, this.b, this.x[k + 11], this.S23, 0x265E5A51);
            this.b = this.GG(this.b, this.c, this.d, this.a, this.x[k], this.S24, 0xE9B6C7AA);
            this.a = this.GG(this.a, this.b, this.c, this.d, this.x[k + 5], this.S21, 0xD62F105D);
            this.d = this.GG(this.d, this.a, this.b, this.c, this.x[k + 10], this.S22, 0x2441453);
            this.c = this.GG(this.c, this.d, this.a, this.b, this.x[k + 15], this.S23, 0xD8A1E681);
            this.b = this.GG(this.b, this.c, this.d, this.a, this.x[k + 4], this.S24, 0xE7D3FBC8);
            this.a = this.GG(this.a, this.b, this.c, this.d, this.x[k + 9], this.S21, 0x21E1CDE6);
            this.d = this.GG(this.d, this.a, this.b, this.c, this.x[k + 14], this.S22, 0xC33707D6);
            this.c = this.GG(this.c, this.d, this.a, this.b, this.x[k + 3], this.S23, 0xF4D50D87);
            this.b = this.GG(this.b, this.c, this.d, this.a, this.x[k + 8], this.S24, 0x455A14ED);
            this.a = this.GG(this.a, this.b, this.c, this.d, this.x[k + 13], this.S21, 0xA9E3E905);
            this.d = this.GG(this.d, this.a, this.b, this.c, this.x[k + 2], this.S22, 0xFCEFA3F8);
            this.c = this.GG(this.c, this.d, this.a, this.b, this.x[k + 7], this.S23, 0x676F02D9);
            this.b = this.GG(this.b, this.c, this.d, this.a, this.x[k + 12], this.S24, 0x8D2A4C8A);
            this.a = this.HH(this.a, this.b, this.c, this.d, this.x[k + 5], this.S31, 0xFFFA3942);
            this.d = this.HH(this.d, this.a, this.b, this.c, this.x[k + 8], this.S32, 0x8771F681);
            this.c = this.HH(this.c, this.d, this.a, this.b, this.x[k + 11], this.S33, 0x6D9D6122);
            this.b = this.HH(this.b, this.c, this.d, this.a, this.x[k + 14], this.S34, 0xFDE5380C);
            this.a = this.HH(this.a, this.b, this.c, this.d, this.x[k + 1], this.S31, 0xA4BEEA44);
            this.d = this.HH(this.d, this.a, this.b, this.c, this.x[k + 4], this.S32, 0x4BDECFA9);
            this.c = this.HH(this.c, this.d, this.a, this.b, this.x[k + 7], this.S33, 0xF6BB4B60);
            this.b = this.HH(this.b, this.c, this.d, this.a, this.x[k + 10], this.S34, 0xBEBFBC70);
            this.a = this.HH(this.a, this.b, this.c, this.d, this.x[k + 13], this.S31, 0x289B7EC6);
            this.d = this.HH(this.d, this.a, this.b, this.c, this.x[k], this.S32, 0xEAA127FA);
            this.c = this.HH(this.c, this.d, this.a, this.b, this.x[k + 3], this.S33, 0xD4EF3085);
            this.b = this.HH(this.b, this.c, this.d, this.a, this.x[k + 6], this.S34, 0x4881D05);
            this.a = this.HH(this.a, this.b, this.c, this.d, this.x[k + 9], this.S31, 0xD9D4D039);
            this.d = this.HH(this.d, this.a, this.b, this.c, this.x[k + 12], this.S32, 0xE6DB99E5);
            this.c = this.HH(this.c, this.d, this.a, this.b, this.x[k + 15], this.S33, 0x1FA27CF8);
            this.b = this.HH(this.b, this.c, this.d, this.a, this.x[k + 2], this.S34, 0xC4AC5665);
            this.a = this.II(this.a, this.b, this.c, this.d, this.x[k], this.S41, 0xF4292244);
            this.d = this.II(this.d, this.a, this.b, this.c, this.x[k + 7], this.S42, 0x432AFF97);
            this.c = this.II(this.c, this.d, this.a, this.b, this.x[k + 14], this.S43, 0xAB9423A7);
            this.b = this.II(this.b, this.c, this.d, this.a, this.x[k + 5], this.S44, 0xFC93A039);
            this.a = this.II(this.a, this.b, this.c, this.d, this.x[k + 12], this.S41, 0x655B59C3);
            this.d = this.II(this.d, this.a, this.b, this.c, this.x[k + 3], this.S42, 0x8F0CCC92);
            this.c = this.II(this.c, this.d, this.a, this.b, this.x[k + 10], this.S43, 0xFFEFF47D);
            this.b = this.II(this.b, this.c, this.d, this.a, this.x[k + 1], this.S44, 0x85845DD1);
            this.a = this.II(this.a, this.b, this.c, this.d, this.x[k + 8], this.S41, 0x6FA87E4F);
            this.d = this.II(this.d, this.a, this.b, this.c, this.x[k + 15], this.S42, 0xFE2CE6E0);
            this.c = this.II(this.c, this.d, this.a, this.b, this.x[k + 6], this.S43, 0xA3014314);
            this.b = this.II(this.b, this.c, this.d, this.a, this.x[k + 13], this.S44, 0x4E0811A1);
            this.a = this.II(this.a, this.b, this.c, this.d, this.x[k + 4], this.S41, 0xF7537E82);
            this.d = this.II(this.d, this.a, this.b, this.c, this.x[k + 11], this.S42, 0xBD3AF235);
            this.c = this.II(this.c, this.d, this.a, this.b, this.x[k + 2], this.S43, 0x2AD7D2BB);
            this.b = this.II(this.b, this.c, this.d, this.a, this.x[k + 9], this.S44, 0xEB86D391);
            this.a = this.AddUnsigned(this.a, AA);
            this.b = this.AddUnsigned(this.b, BB);
            this.c = this.AddUnsigned(this.c, CC);
            this.d = this.AddUnsigned(this.d, DD);
        }
    };
    digest() {
        let temp = this.WordToHex(this.a) + this.WordToHex(this.b) + this.WordToHex(this.c) + this.WordToHex(this.d);
        return temp.toLowerCase();
    };
    init(str:string) {
        var temp;
        if (typeof str !== 'string')
            str = JSON.stringify(str);
        this._string = this.Utf8Encode(str);
        this.x = this.ConvertToWordArray(this._string);
        this.a = 0x67452301;
        this.b = 0xEFCDAB89;
        this.c = 0x98BADCFE;
        this.d = 0x10325476;
        for (let k = 0; k < this.x.length; k += 16) {
            let AA = this.a;
            let BB = this.b;
            let CC = this.c;
            let DD = this.d;
            this.a = this.FF(this.a, this.b, this.c, this.d, this.x[k], this.S11, 0xD76AA478);
            this.d = this.FF(this.d, this.a, this.b, this.c, this.x[k + 1], this.S12, 0xE8C7B756);
            this.c = this.FF(this.c, this.d, this.a, this.b, this.x[k + 2], this.S13, 0x242070DB);
            this.b = this.FF(this.b, this.c, this.d, this.a, this.x[k + 3], this.S14, 0xC1BDCEEE);
            this.a = this.FF(this.a, this.b, this.c, this.d, this.x[k + 4], this.S11, 0xF57C0FAF);
            this.d = this.FF(this.d, this.a, this.b, this.c, this.x[k + 5], this.S12, 0x4787C62A);
            this.c = this.FF(this.c, this.d, this.a, this.b, this.x[k + 6], this.S13, 0xA8304613);
            this.b = this.FF(this.b, this.c, this.d, this.a, this.x[k + 7], this.S14, 0xFD469501);
            this.a = this.FF(this.a, this.b, this.c, this.d, this.x[k + 8], this.S11, 0x698098D8);
            this.d = this.FF(this.d, this.a, this.b, this.c, this.x[k + 9], this.S12, 0x8B44F7AF);
            this.c = this.FF(this.c, this.d, this.a, this.b, this.x[k + 10], this.S13, 0xFFFF5BB1);
            this.b = this.FF(this.b, this.c, this.d, this.a, this.x[k + 11], this.S14, 0x895CD7BE);
            this.a = this.FF(this.a, this.b, this.c, this.d, this.x[k + 12], this.S11, 0x6B901122);
            this.d = this.FF(this.d, this.a, this.b, this.c, this.x[k + 13], this.S12, 0xFD987193);
            this.c = this.FF(this.c, this.d, this.a, this.b, this.x[k + 14], this.S13, 0xA679438E);
            this.b = this.FF(this.b, this.c, this.d, this.a, this.x[k + 15], this.S14, 0x49B40821);
            this.a = this.GG(this.a, this.b, this.c, this.d, this.x[k + 1], this.S21, 0xF61E2562);
            this.d = this.GG(this.d, this.a, this.b, this.c, this.x[k + 6], this.S22, 0xC040B340);
            this.c = this.GG(this.c, this.d, this.a, this.b, this.x[k + 11], this.S23, 0x265E5A51);
            this.b = this.GG(this.b, this.c, this.d, this.a, this.x[k], this.S24, 0xE9B6C7AA);
            this.a = this.GG(this.a, this.b, this.c, this.d, this.x[k + 5], this.S21, 0xD62F105D);
            this.d = this.GG(this.d, this.a, this.b, this.c, this.x[k + 10], this.S22, 0x2441453);
            this.c = this.GG(this.c, this.d, this.a, this.b, this.x[k + 15], this.S23, 0xD8A1E681);
            this.b = this.GG(this.b, this.c, this.d, this.a, this.x[k + 4], this.S24, 0xE7D3FBC8);
            this.a = this.GG(this.a, this.b, this.c, this.d, this.x[k + 9], this.S21, 0x21E1CDE6);
            this.d = this.GG(this.d, this.a, this.b, this.c, this.x[k + 14], this.S22, 0xC33707D6);
            this.c = this.GG(this.c, this.d, this.a, this.b, this.x[k + 3], this.S23, 0xF4D50D87);
            this.b = this.GG(this.b, this.c, this.d, this.a, this.x[k + 8], this.S24, 0x455A14ED);
            this.a = this.GG(this.a, this.b, this.c, this.d, this.x[k + 13], this.S21, 0xA9E3E905);
            this.d = this.GG(this.d, this.a, this.b, this.c, this.x[k + 2], this.S22, 0xFCEFA3F8);
            this.c = this.GG(this.c, this.d, this.a, this.b, this.x[k + 7], this.S23, 0x676F02D9);
            this.b = this.GG(this.b, this.c, this.d, this.a, this.x[k + 12], this.S24, 0x8D2A4C8A);
            this.a = this.HH(this.a, this.b, this.c, this.d, this.x[k + 5], this.S31, 0xFFFA3942);
            this.d = this.HH(this.d, this.a, this.b, this.c, this.x[k + 8], this.S32, 0x8771F681);
            this.c = this.HH(this.c, this.d, this.a, this.b, this.x[k + 11], this.S33, 0x6D9D6122);
            this.b = this.HH(this.b, this.c, this.d, this.a, this.x[k + 14], this.S34, 0xFDE5380C);
            this.a = this.HH(this.a, this.b, this.c, this.d, this.x[k + 1], this.S31, 0xA4BEEA44);
            this.d = this.HH(this.d, this.a, this.b, this.c, this.x[k + 4], this.S32, 0x4BDECFA9);
            this.c = this.HH(this.c, this.d, this.a, this.b, this.x[k + 7], this.S33, 0xF6BB4B60);
            this.b = this.HH(this.b, this.c, this.d, this.a, this.x[k + 10], this.S34, 0xBEBFBC70);
            this.a = this.HH(this.a, this.b, this.c, this.d, this.x[k + 13], this.S31, 0x289B7EC6);
            this.d = this.HH(this.d, this.a, this.b, this.c, this.x[k], this.S32, 0xEAA127FA);
            this.c = this.HH(this.c, this.d, this.a, this.b, this.x[k + 3], this.S33, 0xD4EF3085);
            this.b = this.HH(this.b, this.c, this.d, this.a, this.x[k + 6], this.S34, 0x4881D05);
            this.a = this.HH(this.a, this.b, this.c, this.d, this.x[k + 9], this.S31, 0xD9D4D039);
            this.d = this.HH(this.d, this.a, this.b, this.c, this.x[k + 12], this.S32, 0xE6DB99E5);
            this.c = this.HH(this.c, this.d, this.a, this.b, this.x[k + 15], this.S33, 0x1FA27CF8);
            this.b = this.HH(this.b, this.c, this.d, this.a, this.x[k + 2], this.S34, 0xC4AC5665);
            this.a = this.II(this.a, this.b, this.c, this.d, this.x[k], this.S41, 0xF4292244);
            this.d = this.II(this.d, this.a, this.b, this.c, this.x[k + 7], this.S42, 0x432AFF97);
            this.c = this.II(this.c, this.d, this.a, this.b, this.x[k + 14], this.S43, 0xAB9423A7);
            this.b = this.II(this.b, this.c, this.d, this.a, this.x[k + 5], this.S44, 0xFC93A039);
            this.a = this.II(this.a, this.b, this.c, this.d, this.x[k + 12], this.S41, 0x655B59C3);
            this.d = this.II(this.d, this.a, this.b, this.c, this.x[k + 3], this.S42, 0x8F0CCC92);
            this.c = this.II(this.c, this.d, this.a, this.b, this.x[k + 10], this.S43, 0xFFEFF47D);
            this.b = this.II(this.b, this.c, this.d, this.a, this.x[k + 1], this.S44, 0x85845DD1);
            this.a = this.II(this.a, this.b, this.c, this.d, this.x[k + 8], this.S41, 0x6FA87E4F);
            this.d = this.II(this.d, this.a, this.b, this.c, this.x[k + 15], this.S42, 0xFE2CE6E0);
            this.c = this.II(this.c, this.d, this.a, this.b, this.x[k + 6], this.S43, 0xA3014314);
            this.b = this.II(this.b, this.c, this.d, this.a, this.x[k + 13], this.S44, 0x4E0811A1);
            this.a = this.II(this.a, this.b, this.c, this.d, this.x[k + 4], this.S41, 0xF7537E82);
            this.d = this.II(this.d, this.a, this.b, this.c, this.x[k + 11], this.S42, 0xBD3AF235);
            this.c = this.II(this.c, this.d, this.a, this.b, this.x[k + 2], this.S43, 0x2AD7D2BB);
            this.b = this.II(this.b, this.c, this.d, this.a, this.x[k + 9], this.S44, 0xEB86D391);
            this.a = this.AddUnsigned(this.a, AA);
            this.b = this.AddUnsigned(this.b, BB);
            this.c = this.AddUnsigned(this.c, CC);
            this.d = this.AddUnsigned(this.d, DD);
        }
        temp = this.WordToHex(this.a) + this.WordToHex(this.b) + this.WordToHex(this.c) + this.WordToHex(this.d);
        return temp; //.toUpperCase();
    };
}