Binary.js

const { hexAt, hexLongIsNegative, hexLongToHex, negateHexLong, NUM_HEX_IN_LONG } = require("./HexHelper");
const { inflateSync } = require("zlib")

var l = "",
  d = 0;

  const i = 65533,
  n = new Uint8Array(10),
  s = new Uint8Array(0);

function u(e) {
  if (e === l) return d;
  for (var t = e.length, r = 0, a = 0; a < t; a++) {
    var i = e.charCodeAt(a);
    if (i < 128) r++;
    else if (i < 2048) r += 2;
    else if (i < 55296 || (57344 <= i && i <= 65535)) r += 3;
    else if (55296 <= i && i < 56320 && a + 1 !== t) {
      var n = e.charCodeAt(a + 1);
      56320 <= n && n < 57344 ? (a++, (r += 4)) : (r += 3);
    } else r += 3;
  }
  return (l = e), (d = r);
}
function c(e, t, r) {
  var a = t >> 21;
  if (e) {
    var i = Boolean(2097151 & t || r);
    return 0 === a || (-1 === a && i);
  }
  return 0 === a;
}
function p(e, t, r, a, i = undefined) {
  return e.readWithViewParser(t, r, a, i);
}
function f(e, t, r, a = undefined, i = undefined) {
  return e.readWithBytesParser(t, r, a, i);
}
function h(e, t, r, a) {
  return a ? e.getInt8(t) : e.getUint8(t);
}
function _(e, t, r, a) {
  return e.getUint16(t, a);
}
function m(e, t, r, a) {
  return e.getInt32(t, a);
}
function g(e, t, r, a) {
  return e.getUint32(t, a);
}
function v(e, t, r, a, i) {
  return a(e.getInt32(i ? t + 4 : t, i), e.getInt32(i ? t : t + 4, i));
}
function y(e, t, r, a) {
  return e.getFloat32(t, a);
}
function E(e, t, r, a) {
  return e.getFloat64(t, a);
}
function S(e, t, r, a) {
  for (var i = Math.min(a, 10), n = 0, s = 128; n < i && 128 & s; )
    s = e[t + n++];
  if (10 === n && s > 1) throw new Error("ParseError: varint exceeds 64 bits");
  return 128 & s ? n + 1 : n;
}
function T(e, t, r, a) {
  var i = 0,
    n = 0,
    s = r;
  10 === r && (n = 1 & e[t + --s]);
  for (var o = s - 1; o >= 0; o--)
    (i = (i << 7) | (n >>> 25)), (n = (n << 7) | (127 & e[t + o]));
  return a(i, n);
}
function A(e, t, r) {
  var a = t + e.byteOffset,
    i = e.buffer;
  return 0 === a && r === i.byteLength ? i : i.slice(a, a + r);
}
function b(e, t, r) {
  return e.subarray(t, t + r);
}
function C(e, t, r) {
  for (var a = t + r, n = [], s = null, o = t; o < a; o++) {
    n.length > 5e3 &&
      (s || (s = []), s.push(String.fromCharCode.apply(String, n)), (n = []));
    var l = 0 | e[o];
    if (0 == (128 & l)) n.push(l);
    else if (192 == (224 & l)) {
      var d = H(e, o + 1, a);
      if (d) {
        o++;
        var u = ((31 & l) << 6) | (63 & d);
        u >= 128 ? n.push(u) : n.push(i);
      } else n.push(i);
    } else if (224 == (240 & l)) {
      var c = H(e, o + 1, a),
        p = H(e, o + 2, a);
      if (c && p) {
        o += 2;
        var f = ((15 & l) << 12) | ((63 & c) << 6) | (63 & p);
        f >= 2048 && !(55296 <= f && f < 57344) ? n.push(f) : n.push(i);
      } else c ? (o++, n.push(i)) : n.push(i);
    } else if (240 == (248 & l)) {
      var h = H(e, o + 1, a),
        _ = H(e, o + 2, a),
        m = H(e, o + 3, a);
      if (h && _ && m) {
        o += 3;
        var g = ((7 & l) << 18) | ((63 & h) << 12) | ((63 & _) << 6) | (63 & m);
        if (g >= 65536 && g <= 1114111) {
          var v = g - 65536;
          n.push(55296 | (v >> 10), 56320 | (1023 & v));
        } else n.push(i);
      } else h && _ ? ((o += 2), n.push(i)) : h ? (o++, n.push(i)) : n.push(i);
    } else n.push(i);
  }
  var y = String.fromCharCode.apply(String, n);
  return s ? (s.push(y), s.join("")) : y;
}
function P(e, t, r, a, i) {
  return e.writeToView(t, r, a, i);
}
function O(e, t, r, a, i = undefined) {
  return e.writeToBytes(t, r, a, i);
}
function M(e, t, r, a) {
  e[t] = a;
}
function w(e, t, r, a, i) {
  e.setUint16(t, a, i);
}
function I(e, t, r, a, i) {
  e.setInt16(t, a, i);
}
function R(e, t, r, a, i) {
  e.setUint32(t, a, i);
}
function D(e, t, r, a, i) {
  e.setInt32(t, a, i);
}
function N(e, t, r, a, i) {
  var n = a < 0,
    s = n ? -a : a,
    o = Math.floor(s / 4294967296),
    l = s - 4294967296 * o;
  n && ((o = ~o), 0 === l ? o++ : (l = -l)),
    e.setUint32(i ? t + 4 : t, o, i),
    e.setUint32(i ? t : t + 4, l, i);
}
function L(e, t, r, a, i) {
  e.setFloat32(t, a, i);
}
function k(e, t, r, a, i) {
  e.setFloat64(t, a, i);
}
function U(e, t, r, a, i) {
  for (var n = a, s = i, o = t + r - 1, l = t; l < o; l++)
    (e[l] = 128 | (127 & s)), (s = (n << 25) | (s >>> 7)), (n >>>= 7);
  e[o] = s;
}
function G(e, t, r, a) {
  for (var i = t, n = a.length, s = 0; s < n; s++) {
    var o = a.charCodeAt(s);
    if (o < 128) e[i++] = o;
    else if (o < 2048) (e[i++] = 192 | (o >> 6)), (e[i++] = 128 | (63 & o));
    else if (o < 55296 || 57344 <= o)
      (e[i++] = 224 | (o >> 12)),
        (e[i++] = 128 | ((o >> 6) & 63)),
        (e[i++] = 128 | (63 & o));
    else if (55296 <= o && o < 56320 && s + 1 !== n) {
      var l = a.charCodeAt(s + 1);
      if (56320 <= l && l < 57344) {
        s++;
        var d = 65536 + (((1023 & o) << 10) | (1023 & l));
        (e[i++] = 240 | (d >> 18)),
          (e[i++] = 128 | ((d >> 12) & 63)),
          (e[i++] = 128 | ((d >> 6) & 63)),
          (e[i++] = 128 | (63 & d));
      } else (e[i++] = 239), (e[i++] = 191), (e[i++] = 189);
    } else (e[i++] = 239), (e[i++] = 191), (e[i++] = 189);
  }
}
function F(e, t, r, i, n) {
  for (
    var s = hexLongIsNegative(i),
      o = hexLongToHex(i),
      l = 0,
      d = 0,
      u = 0;
    u < 16;
    u++
  )
    (l = (l << 4) | (d >>> 28)), (d = (d << 4) | hexAt(o, u));
  s && ((l = ~l), 0 === d ? l++ : (d = -d)),
    e.setUint32(n ? t + 4 : t, l, n),
    e.setUint32(n ? t : t + 4, d, n);
}
function x(e, t, r, a) {
  for (var i = 0; i < r; i++) e[t + i] = a[i];
}
function B(e, t) {
  var r, a;
  for (e ? ((r = 5), (a = e >>> 3)) : ((r = 1), (a = t >>> 7)); a; )
    r++, (a >>>= 7);
  return r;
}
function Y(e, t, r, a) {
  if ("number" != typeof e || e != e || Math.floor(e) !== e || e < t || e >= r) {
    console.trace('here')
    throw new TypeError(
      "string" == typeof e
        ? `WriteError: string "${e}" is not a valid ${a}`
        : `WriteError: ${String(e)} is not a valid ${a}`
    );
  }
    
}
function K(e, t, r) {
  var a =
    4294967296 * (t >= 0 || e ? t : 4294967296 + t) +
    (r >= 0 ? r : 4294967296 + r);
  if (!c(e, t, r))
    throw new Error(`ReadError: integer exceeded 53 bits (${a})`);
  return a;
}
function j(e, t) {
  return K(!0, e, t);
}
function W(e, t) {
  return K(!1, e, t);
}
function H(e, t, r) {
  if (t >= r) return 0;
  var a = 0 | e[t];
  return 128 == (192 & a) ? a : 0;
}

module.exports.numUtf8Bytes = u;
module.exports.longFitsInDouble = c;
module.exports.parseInt64OrThrow = j;
module.exports.parseUint64OrThrow = W;

class Binary {
  /** @type {Uint8Array} */
  buffer;
  readEndIndex;
  writeIndex;
  bytesTrashed = 0;
  earliestIndex = 0;
  readIndex = 0;
  /** @type {DataView} */
  view = null;
  littleEndian = false;
  hiddenReads = 0;
  hiddenWrites = 0;

  constructor(data = new Uint8Array(0), littleEndian = false) {
    if (data instanceof ArrayBuffer) {
      this.buffer = new Uint8Array(data);
      this.readEndIndex = data.byteLength;
      this.writeIndex = data.byteLength;
    }

    if (data instanceof Uint8Array) {
      this.buffer = data;
      this.readEndIndex = data.length;
      this.writeIndex = data.length;
    }

    this.littleEndian = littleEndian;
  }

  size() {
    return this.readEndIndex - this.readIndex;
  }

  peek(e, t = undefined) {
    this.hiddenReads++;

    const r = this.readIndex;
    const a = this.bytesTrashed;

    try {
      return e(this, t);
    } finally {
      this.hiddenReads--, (this.readIndex = r - (this.bytesTrashed - a));
    }
  }

  advance(e) {
    this.shiftReadOrThrow(e);
  }

  readWithViewParser(e, t, r, a) {
    return t(this.getView(), this.shiftReadOrThrow(e), e, r, a);
  }

  readWithBytesParser(e, t, r, a) {
    return t(this.buffer, this.shiftReadOrThrow(e), e, r, a);
  }

  readUint8() {
    //return this.readWithViewParser(1, h, false)
    return p(this, 1, h, !1);
  }
  readInt8() {
    return p(this, 1, h, !0);
  }
  readUint16(e = this.littleEndian) {
    return p(this, 2, _, e);
  }
  readInt32(e = this.littleEndian) {
    return p(this, 4, m, e);
  }
  readUint32(e = this.littleEndian) {
    return p(this, 4, g, e);
  }
  readInt64(e = this.littleEndian) {
    return p(this, 8, v, j, e);
  }
  readUint64(e = this.littleEndian) {
    return p(this, 8, v, W, e);
  }
  readLong(e, t = this.littleEndian) {
    return p(this, 8, v, e, t);
  }
  readFloat32(e = this.littleEndian) {
    return p(this, 4, y, e);
  }
  readFloat64(e = this.littleEndian) {
    return p(this, 8, E, e);
  }
  readVarInt(e) {
    var t = f(this, 0, S, this.size());
    return f(this, t, T, e);
  }
  readBuffer(e = this.size()) {
    return 0 === e ? new ArrayBuffer(0) : f(this, e, A);
  }
  readByteArray(e = this.size()) {
    return 0 === e ? new Uint8Array(0) : f(this, e, b);
  }
  readBinary(e = this.size(), t = this.littleEndian) {
    if (0 === e) return new Binary(void 0, t);
    var r = f(this, e, b);
    return new Binary(r, t);
  }
  indexOf(e) {
    if (0 === e.length) return 0;
    for (
      var t = this.buffer,
        r = this.readEndIndex,
        a = this.readIndex,
        i = 0,
        n = a,
        s = a;
      s < r;
      s++
    )
      if (t[s] === e[i]) {
        if ((0 === i && (n = s), ++i === e.byteLength))
          return s - a - e.byteLength + 1;
      } else i > 0 && ((i = 0), (s = n));
    return -1;
    1;
  }
  readString(e) {
    return f(this, e, C);
  }
  ensureCapacity(e) {
    this.maybeReallocate(this.readIndex + e);
  }
  ensureAdditionalCapacity(e) {
    this.maybeReallocate(this.writeIndex + e);
  }
  writeToView(e, t, r, a) {
    var i = this.shiftWriteMaybeReallocate(e);
    return t(this.getView(), i, e, r, a);
  }
  writeToBytes(e, t, r, a) {
    var i = this.shiftWriteMaybeReallocate(e);
    return t(this.buffer, i, e, r, a);
  }
  write(...e) {
    for (var t = 0; t < e.length; t++) {
      var r = e[t];
      "string" == typeof r
        ? this.writeString(r)
        : "number" == typeof r
        ? this.writeUint8(r)
        : r instanceof Binary
        ? this.writeBinary(r)
        : r instanceof ArrayBuffer
        ? this.writeBuffer(r)
        : r instanceof Uint8Array && this.writeByteArray(r);
    }
  }
  writeUint8(e) {
    Y(e, 0, 256, "uint8"), O(this, 1, M, e, !1);
  }
  writeInt8(e) {
    Y(e, -128, 128, "signed int8"), O(this, 1, M, e, !0);
  }
  writeUint16(e, t = this.littleEndian) {
    Y(e, 0, 65536, "uint16"), P(this, 2, w, e, t);
  }
  writeInt16(e, t = this.littleEndian) {
    Y(e, -32768, 32768, "signed int16"), P(this, 2, I, e, t);
  }
  writeUint32(e, t = this.littleEndian) {
    Y(e, 0, 4294967296, "uint32"), P(this, 4, R, e, t);
  }
  writeInt32(e, t = this.littleEndian) {
    Y(e, -2147483648, 2147483648, "signed int32"), P(this, 4, D, e, t);
  }
  writeUint64(e, t = this.littleEndian) {
    Y(e, 0, 0x10000000000000000, "uint64"), P(this, 8, N, e, t);
  }
  writeInt64(e, t = this.littleEndian) {
    Y(e, -0x8000000000000000, 0x8000000000000000, "signed int64"),
      P(this, 8, N, e, t);
  }
  writeFloat32(e, t = this.littleEndian) {
    P(this, 4, L, e, t);
  }
  writeFloat64(e, t = this.littleEndian) {
    P(this, 8, k, e, t);
  }
  writeVarInt(e) {
    Y(e, -0x8000000000000000, 0x8000000000000000, "varint (signed int64)");
    var t = e < 0,
      r = t ? -e : e,
      a = Math.floor(r / 4294967296),
      i = r - 4294967296 * a;
    t && ((a = ~a), 0 === i ? a++ : (i = -i)), O(this, B(a, i), U, a, i);
  }
  writeVarIntFromHexLong(e) {
    for (
      var t = hexLongIsNegative(e),
        r = t ? negateHexLong(e) : e,
        i = hexLongToHex(r),
        n = 0,
        s = 0,
        o = 0;
      o < NUM_HEX_IN_LONG;
      o++
    )
      (n = (n << 4) | (s >>> 28)), (s = (s << 4) | hexAt(i, o));
    t && ((n = ~n), 0 === s ? n++ : (s = -s)), O(this, B(n, s), U, n, s);
  }
  writeBinary(e) {
    var t = e.peek((e) => e.readByteArray());
    if (t.length) {
      var r = this.shiftWriteMaybeReallocate(t.length);
      this.buffer.set(t, r);
    }
  }
  writeBuffer(e) {
    this.writeByteArray(new Uint8Array(e));
  }
  writeByteArray(e) {
    var t = this.shiftWriteMaybeReallocate(e.length);
    this.buffer.set(e, t);
  }
  writeBufferView(e) {
    this.writeByteArray(new Uint8Array(e.buffer, e.byteOffset, e.byteLength));
  }
  writeString(e) {
    O(this, u(e), G, e);
  }
  writeHexLong(e, t = this.littleEndian) {
    P(this, 8, F, e, t);
  }
  writeBytes(...e) {
    for (var t = 0; t < e.length; t++) Y(e[t], 0, 256, "byte");
    O(this, e.length, x, e);
  }
  writeAtomically(e, t) {
    this.hiddenWrites++;
    var r = this.writeIndex,
      a = this.bytesTrashed;
    try {
      var i = e(this, t);
      return (r = this.writeIndex), (a = this.bytesTrashed), i;
    } finally {
      this.hiddenWrites--, (this.writeIndex = r - (this.bytesTrashed - a));
    }
  }

  writeWithVarIntLength(e, t) {
    var r = this.writeIndex,
      a = this.writeAtomically(e, t),
      i = this.writeIndex;
    this.writeVarInt(i - r);
    for (var s = this.writeIndex - i, o = this.buffer, l = 0; l < s; l++)
      n[l] = o[i + l];
    for (var d = i - 1; d >= r; d--) o[d + s] = o[d];
    for (var u = 0; u < s; u++) o[r + u] = n[u];
    return a;
  }

  static build(...e) {
    let t = 0;
    let r = 0;
    for (t = 0, r = 0; r < e.length; r++) {
      let a = e[r];
      "string" == typeof a
        ? (t += u(a))
        : "number" == typeof a
        ? t++
        : a instanceof Binary
        ? (t += a.size())
        : a instanceof ArrayBuffer
        ? (t += a.byteLength)
        : a instanceof Uint8Array && (t += a.length);
    }

    var i = new Binary();
    return i.ensureCapacity(t), i.write.apply(i, arguments), i;
  }

  getView() {
    return (
      this.view ||
      (this.view = new DataView(this.buffer.buffer, this.buffer.byteOffset))
    );
  }

  shiftReadOrThrow(e) {
    if (e < 0)
      throw new Error("ReadError: given negative number of bytes to read");
    var t = this.readIndex,
      r = t + e;
    if (r > this.readEndIndex)
      throw new Error(
        t === this.readEndIndex
          ? "ReadError: tried to read from depleted binary"
          : "ReadError: tried to read beyond end of binary"
      );
    return (
      (this.readIndex = r), this.hiddenReads || (this.earliestIndex = r), t
    );
  }

  maybeReallocate(e) {
    const t = this.buffer;
    if (e <= t.length) {
      return e;
    }

    const r = this.earliestIndex;
    const a = e - r;
    const i = Math.max(a, 2 * (t.length - r), 64);
    const n = new Uint8Array(i);
    return (
      r
        ? (n.set(t.subarray(r)),
          (this.bytesTrashed += r),
          (this.readIndex -= r),
          (this.readEndIndex -= r),
          (this.writeIndex -= r),
          (this.earliestIndex = 0))
        : n.set(t),
      (this.buffer = n),
      (this.view = null),
      a
    );
  }

  shiftWriteMaybeReallocate(e) {
    const t = this.maybeReallocate(this.writeIndex + e);
    const r = this.writeIndex;
    return (
      (this.writeIndex = t), this.hiddenWrites || (this.readEndIndex = t), r
    );
  }
  decompressed = () => {
    if (2 & this.readUint8()) {
        const result = inflateSync(this.readByteArray())
        return new Binary(result)
    }
    return this
  }
}

module.exports.Binary = Binary