'use strict';

module.exports = function md5(str) {
  //  discuss at: https://locutus.io/php/md5/
  // original by: Webtoolkit.info (https://www.webtoolkit.info/)
  // improved by: Michael White (https://getsprink.com)
  // improved by: Jack
  // improved by: Kevin van Zonneveld (https://kvz.io)
  //    input by: Brett Zamir (https://brett-zamir.me)
  // bugfixed by: Kevin van Zonneveld (https://kvz.io)
  //      note 1: Keep in mind that in accordance with PHP, the whole string is buffered and then
  //      note 1: hashed. If available, we'd recommend using Node's native crypto modules directly
  //      note 1: in a steaming fashion for faster and more efficient hashing
  //   example 1: md5('Kevin van Zonneveld')
  //   returns 1: '6e658d4bfcb59cc13f96c14450ac40b9'

  var hash = void 0;
  try {
    var crypto = require('crypto');
    var md5sum = crypto.createHash('md5');
    md5sum.update(str);
    hash = md5sum.digest('hex');
  } catch (e) {
    hash = undefined;
  }

  if (hash !== undefined) {
    return hash;
  }

  var utf8Encode = require('../xml/utf8_encode');
  var xl = void 0;

  var _rotateLeft = function _rotateLeft(lValue, iShiftBits) {
    return lValue << iShiftBits | lValue >>> 32 - iShiftBits;
  };

  var _addUnsigned = function _addUnsigned(lX, lY) {
    var lX4 = void 0,
        lY4 = void 0,
        lX8 = void 0,
        lY8 = void 0,
        lResult = void 0;
    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;
    }
  };

  var _F = function _F(x, y, z) {
    return x & y | ~x & z;
  };
  var _G = function _G(x, y, z) {
    return x & z | y & ~z;
  };
  var _H = function _H(x, y, z) {
    return x ^ y ^ z;
  };
  var _I = function _I(x, y, z) {
    return y ^ (x | ~z);
  };

  var _FF = function _FF(a, b, c, d, x, s, ac) {
    a = _addUnsigned(a, _addUnsigned(_addUnsigned(_F(b, c, d), x), ac));
    return _addUnsigned(_rotateLeft(a, s), b);
  };

  var _GG = function _GG(a, b, c, d, x, s, ac) {
    a = _addUnsigned(a, _addUnsigned(_addUnsigned(_G(b, c, d), x), ac));
    return _addUnsigned(_rotateLeft(a, s), b);
  };

  var _HH = function _HH(a, b, c, d, x, s, ac) {
    a = _addUnsigned(a, _addUnsigned(_addUnsigned(_H(b, c, d), x), ac));
    return _addUnsigned(_rotateLeft(a, s), b);
  };

  var _II = function _II(a, b, c, d, x, s, ac) {
    a = _addUnsigned(a, _addUnsigned(_addUnsigned(_I(b, c, d), x), ac));
    return _addUnsigned(_rotateLeft(a, s), b);
  };

  var _convertToWordArray = function _convertToWordArray(str) {
    var lWordCount = void 0;
    var lMessageLength = str.length;
    var lNumberOfWordsTemp1 = lMessageLength + 8;
    var lNumberOfWordsTemp2 = (lNumberOfWordsTemp1 - lNumberOfWordsTemp1 % 64) / 64;
    var lNumberOfWords = (lNumberOfWordsTemp2 + 1) * 16;
    var lWordArray = new Array(lNumberOfWords - 1);
    var lBytePosition = 0;
    var 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;
  };

  var _wordToHex = function _wordToHex(lValue) {
    var wordToHexValue = '';
    var wordToHexValueTemp = '';
    var lByte = void 0;
    var lCount = void 0;

    for (lCount = 0; lCount <= 3; lCount++) {
      lByte = lValue >>> lCount * 8 & 255;
      wordToHexValueTemp = '0' + lByte.toString(16);
      wordToHexValue = wordToHexValue + wordToHexValueTemp.substr(wordToHexValueTemp.length - 2, 2);
    }
    return wordToHexValue;
  };

  var x = [];
  var k = void 0;
  var AA = void 0;
  var BB = void 0;
  var CC = void 0;
  var DD = void 0;
  var a = void 0;
  var b = void 0;
  var c = void 0;
  var d = void 0;
  var S11 = 7;
  var S12 = 12;
  var S13 = 17;
  var S14 = 22;
  var S21 = 5;
  var S22 = 9;
  var S23 = 14;
  var S24 = 20;
  var S31 = 4;
  var S32 = 11;
  var S33 = 16;
  var S34 = 23;
  var S41 = 6;
  var S42 = 10;
  var S43 = 15;
  var S44 = 21;

  str = utf8Encode(str);
  x = _convertToWordArray(str);
  a = 0x67452301;
  b = 0xEFCDAB89;
  c = 0x98BADCFE;
  d = 0x10325476;

  xl = x.length;
  for (k = 0; k < xl; k += 16) {
    AA = a;
    BB = b;
    CC = c;
    DD = d;
    a = _FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
    d = _FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
    c = _FF(c, d, a, b, x[k + 2], S13, 0x242070DB);
    b = _FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
    a = _FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
    d = _FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
    c = _FF(c, d, a, b, x[k + 6], S13, 0xA8304613);
    b = _FF(b, c, d, a, x[k + 7], S14, 0xFD469501);
    a = _FF(a, b, c, d, x[k + 8], S11, 0x698098D8);
    d = _FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
    c = _FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
    b = _FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
    a = _FF(a, b, c, d, x[k + 12], S11, 0x6B901122);
    d = _FF(d, a, b, c, x[k + 13], S12, 0xFD987193);
    c = _FF(c, d, a, b, x[k + 14], S13, 0xA679438E);
    b = _FF(b, c, d, a, x[k + 15], S14, 0x49B40821);
    a = _GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
    d = _GG(d, a, b, c, x[k + 6], S22, 0xC040B340);
    c = _GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
    b = _GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
    a = _GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
    d = _GG(d, a, b, c, x[k + 10], S22, 0x2441453);
    c = _GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
    b = _GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
    a = _GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
    d = _GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
    c = _GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
    b = _GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
    a = _GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
    d = _GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
    c = _GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
    b = _GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
    a = _HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
    d = _HH(d, a, b, c, x[k + 8], S32, 0x8771F681);
    c = _HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
    b = _HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
    a = _HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
    d = _HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
    c = _HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
    b = _HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
    a = _HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
    d = _HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
    c = _HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
    b = _HH(b, c, d, a, x[k + 6], S34, 0x4881D05);
    a = _HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
    d = _HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
    c = _HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
    b = _HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
    a = _II(a, b, c, d, x[k + 0], S41, 0xF4292244);
    d = _II(d, a, b, c, x[k + 7], S42, 0x432AFF97);
    c = _II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
    b = _II(b, c, d, a, x[k + 5], S44, 0xFC93A039);
    a = _II(a, b, c, d, x[k + 12], S41, 0x655B59C3);
    d = _II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
    c = _II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
    b = _II(b, c, d, a, x[k + 1], S44, 0x85845DD1);
    a = _II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
    d = _II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
    c = _II(c, d, a, b, x[k + 6], S43, 0xA3014314);
    b = _II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
    a = _II(a, b, c, d, x[k + 4], S41, 0xF7537E82);
    d = _II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
    c = _II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
    b = _II(b, c, d, a, x[k + 9], S44, 0xEB86D391);
    a = _addUnsigned(a, AA);
    b = _addUnsigned(b, BB);
    c = _addUnsigned(c, CC);
    d = _addUnsigned(d, DD);
  }

  var temp = _wordToHex(a) + _wordToHex(b) + _wordToHex(c) + _wordToHex(d);

  return temp.toLowerCase();
};
//# sourceMappingURL=md5.js.map