/**
 * 获取唯一Id
 */
const getId = () => {
  const timestamp = new Date().getTime();
  const salt = Math.random().toString(36)
    .substr(2);
  return `${timestamp}${salt}`;
};

const md5 = function (md5str: string) {
  const createMD5String = function (string: string) {
    let x = [];
    let k; let AA; let BB; let CC; let DD; let a; let b; let c; let d;
    const S11 = 7;
    const S12 = 12;
    const S13 = 17;
    const S14 = 22;
    const S21 = 5;
    const S22 = 9;
    const S23 = 14;
    const S24 = 20;
    const S31 = 4;
    const S32 = 11;
    const S33 = 16;
    const S34 = 23;
    const S41 = 6;
    const S42 = 10;
    const S43 = 15;
    const S44 = 21;
    string = uTF8Encode(string);
    x = convertToWordArray(string);
    a = 0x67452301;
    b = 0xEFCDAB89;
    c = 0x98BADCFE;
    d = 0x10325476;
    for (k = 0; k < x.length; 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);
    }
    const tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
    return tempValue.toLowerCase();
  };
  const rotateLeft = function (lValue: number, iShiftBits: number) {
    return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
  };
  const addUnsigned = function (lX: number, lY: number) {
    const lX8 = (lX & 0x80000000);
    const lY8 = (lY & 0x80000000);
    const lX4 = (lX & 0x40000000);
    const lY4 = (lY & 0x40000000);
    const lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
    if (lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
    if (lX4 | lY4) {
      if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
      return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
    }
    return (lResult ^ lX8 ^ lY8);
  };
  const f = function (x: number, y: number, z: number) {
    return (x & y) | ((~x) & z);
  };
  const g = function (x: number, y: number, z: number) {
    return (x & z) | (y & (~z));
  };
  const h = function (x: number, y: number, z: number) {
    return (x ^ y ^ z);
  };
  const i = function (x: number, y: number, z: number) {
    return (y ^ (x | (~z)));
  };
  const ff = function (a: number, b: number, c: number, d: number, x: number, s: number, ac: number) {
    a = addUnsigned(a, addUnsigned(addUnsigned(f(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
  };
  const gg = function (a: number, b: number, c: number, d: number, x: number, s: number, ac: number) {
    a = addUnsigned(a, addUnsigned(addUnsigned(g(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
  };
  const hh = function (a: number, b: number, c: number, d: number, x: number, s: number, ac: number) {
    a = addUnsigned(a, addUnsigned(addUnsigned(h(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
  };
  const ii = function (a: number, b: number, c: number, d: number, x: number, s: number, ac: number) {
    a = addUnsigned(a, addUnsigned(addUnsigned(i(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
  };
  const convertToWordArray = function (string: string) {
    let lWordCount;
    const lMessageLength = string.length;
    const lNumberOfWordsTempOne = lMessageLength + 8;
    const lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
    const lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16;
    const lWordArray = Array(lNumberOfWords - 1);
    let lBytePosition = 0;
    let lByteCount = 0;
    while (lByteCount < lMessageLength) {
      lWordCount = (lByteCount - (lByteCount % 4)) / 4;
      lBytePosition = (lByteCount % 4) * 8;
      lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
      lByteCount = lByteCount + 1;
    }
    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;
  };
  const wordToHex = function (lValue: number) {
    let wordToHexValue = '';
    let wordToHexValueTemp = '';
    let lByte; let lCount;
    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;
  };
  const uTF8Encode = function (string: string) {
    string = string.toString().replace(/\x0d\x0a/g, '\x0a');
    let output = '';
    for (let n = 0; n < string.length; n++) {
      const c = string.charCodeAt(n);
      if (c < 128) {
        output += String.fromCharCode(c);
      } else if ((c > 127) && (c < 2048)) {
        output += String.fromCharCode((c >> 6) | 192);
        output += String.fromCharCode((c & 63) | 128);
      } else {
        output += String.fromCharCode((c >> 12) | 224);
        output += String.fromCharCode(((c >> 6) & 63) | 128);
        output += String.fromCharCode((c & 63) | 128);
      }
    }
    return output;
  };
  return createMD5String(md5str);
};

export {
  md5,
};


export {
  getId,
};