llm_api_proxy.js

// node_modules/@esbuild-plugins/node-globals-polyfill/process.js
function defaultSetTimout() {
  throw new Error("setTimeout has not been defined");
}
function defaultClearTimeout() {
  throw new Error("clearTimeout has not been defined");
}
var cachedSetTimeout = defaultSetTimout;
var cachedClearTimeout = defaultClearTimeout;
if (typeof globalThis.setTimeout === "function") {
  cachedSetTimeout = setTimeout;
}
if (typeof globalThis.clearTimeout === "function") {
  cachedClearTimeout = clearTimeout;
}
function runTimeout(fun) {
  if (cachedSetTimeout === setTimeout) {
    return setTimeout(fun, 0);
  }
  if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
    cachedSetTimeout = setTimeout;
    return setTimeout(fun, 0);
  }
  try {
    return cachedSetTimeout(fun, 0);
  } catch (e) {
    try {
      return cachedSetTimeout.call(null, fun, 0);
    } catch (e2) {
      return cachedSetTimeout.call(this, fun, 0);
    }
  }
}
function runClearTimeout(marker) {
  if (cachedClearTimeout === clearTimeout) {
    return clearTimeout(marker);
  }
  if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
    cachedClearTimeout = clearTimeout;
    return clearTimeout(marker);
  }
  try {
    return cachedClearTimeout(marker);
  } catch (e) {
    try {
      return cachedClearTimeout.call(null, marker);
    } catch (e2) {
      return cachedClearTimeout.call(this, marker);
    }
  }
}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
  if (!draining || !currentQueue) {
    return;
  }
  draining = false;
  if (currentQueue.length) {
    queue = currentQueue.concat(queue);
  } else {
    queueIndex = -1;
  }
  if (queue.length) {
    drainQueue();
  }
}
function drainQueue() {
  if (draining) {
    return;
  }
  var timeout = runTimeout(cleanUpNextTick);
  draining = true;
  var len = queue.length;
  while (len) {
    currentQueue = queue;
    queue = [];
    while (++queueIndex < len) {
      if (currentQueue) {
        currentQueue[queueIndex].run();
      }
    }
    queueIndex = -1;
    len = queue.length;
  }
  currentQueue = null;
  draining = false;
  runClearTimeout(timeout);
}
function nextTick(fun) {
  var args = new Array(arguments.length - 1);
  if (arguments.length > 1) {
    for (var i = 1; i < arguments.length; i++) {
      args[i - 1] = arguments[i];
    }
  }
  queue.push(new Item(fun, args));
  if (queue.length === 1 && !draining) {
    runTimeout(drainQueue);
  }
}
function Item(fun, array) {
  this.fun = fun;
  this.array = array;
}
Item.prototype.run = function() {
  this.fun.apply(null, this.array);
};
var title = "browser";
var platform = "browser";
var browser = true;
var env = {};
var argv = [];
var version = "";
var versions = {};
var release = {};
var config = {};
function noop() {
}
var on = noop;
var addListener = noop;
var once = noop;
var off = noop;
var removeListener = noop;
var removeAllListeners = noop;
var emit = noop;
function binding(name) {
  throw new Error("process.binding is not supported");
}
function cwd() {
  return "/";
}
function chdir(dir) {
  throw new Error("process.chdir is not supported");
}
function umask() {
  return 0;
}
var performance = globalThis.performance || {};
var performanceNow = performance.now || performance.mozNow || performance.msNow || performance.oNow || performance.webkitNow || function() {
  return (/* @__PURE__ */ new Date()).getTime();
};
function hrtime(previousTimestamp) {
  var clocktime = performanceNow.call(performance) * 1e-3;
  var seconds = Math.floor(clocktime);
  var nanoseconds = Math.floor(clocktime % 1 * 1e9);
  if (previousTimestamp) {
    seconds = seconds - previousTimestamp[0];
    nanoseconds = nanoseconds - previousTimestamp[1];
    if (nanoseconds < 0) {
      seconds--;
      nanoseconds += 1e9;
    }
  }
  return [seconds, nanoseconds];
}
var startTime = /* @__PURE__ */ new Date();
function uptime() {
  var currentTime = /* @__PURE__ */ new Date();
  var dif = currentTime - startTime;
  return dif / 1e3;
}
var process = {
  nextTick,
  title,
  browser,
  env,
  argv,
  version,
  versions,
  on,
  addListener,
  once,
  off,
  removeListener,
  removeAllListeners,
  emit,
  binding,
  cwd,
  chdir,
  umask,
  hrtime,
  platform,
  release,
  config,
  uptime
};
var defines = {};
Object.keys(defines).forEach((key) => {
  const segs = key.split(".");
  let target = process;
  for (let i = 0; i < segs.length; i++) {
    const seg = segs[i];
    if (i === segs.length - 1) {
      target[seg] = defines[key];
    } else {
      target = target[seg] || (target[seg] = {});
    }
  }
});

// node_modules/@esbuild-plugins/node-globals-polyfill/Buffer.js
var lookup = [];
var revLookup = [];
var Arr = typeof Uint8Array !== "undefined" ? Uint8Array : Array;
var inited = false;
function init() {
  inited = true;
  var code = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  for (var i = 0, len = code.length; i < len; ++i) {
    lookup[i] = code[i];
    revLookup[code.charCodeAt(i)] = i;
  }
  revLookup["-".charCodeAt(0)] = 62;
  revLookup["_".charCodeAt(0)] = 63;
}
function base64toByteArray(b64) {
  if (!inited) {
    init();
  }
  var i, j, l, tmp, placeHolders, arr;
  var len = b64.length;
  if (len % 4 > 0) {
    throw new Error("Invalid string. Length must be a multiple of 4");
  }
  placeHolders = b64[len - 2] === "=" ? 2 : b64[len - 1] === "=" ? 1 : 0;
  arr = new Arr(len * 3 / 4 - placeHolders);
  l = placeHolders > 0 ? len - 4 : len;
  var L = 0;
  for (i = 0, j = 0; i < l; i += 4, j += 3) {
    tmp = revLookup[b64.charCodeAt(i)] << 18 | revLookup[b64.charCodeAt(i + 1)] << 12 | revLookup[b64.charCodeAt(i + 2)] << 6 | revLookup[b64.charCodeAt(i + 3)];
    arr[L++] = tmp >> 16 & 255;
    arr[L++] = tmp >> 8 & 255;
    arr[L++] = tmp & 255;
  }
  if (placeHolders === 2) {
    tmp = revLookup[b64.charCodeAt(i)] << 2 | revLookup[b64.charCodeAt(i + 1)] >> 4;
    arr[L++] = tmp & 255;
  } else if (placeHolders === 1) {
    tmp = revLookup[b64.charCodeAt(i)] << 10 | revLookup[b64.charCodeAt(i + 1)] << 4 | revLookup[b64.charCodeAt(i + 2)] >> 2;
    arr[L++] = tmp >> 8 & 255;
    arr[L++] = tmp & 255;
  }
  return arr;
}
function tripletToBase64(num) {
  return lookup[num >> 18 & 63] + lookup[num >> 12 & 63] + lookup[num >> 6 & 63] + lookup[num & 63];
}
function encodeChunk(uint8, start, end) {
  var tmp;
  var output = [];
  for (var i = start; i < end; i += 3) {
    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + uint8[i + 2];
    output.push(tripletToBase64(tmp));
  }
  return output.join("");
}
function base64fromByteArray(uint8) {
  if (!inited) {
    init();
  }
  var tmp;
  var len = uint8.length;
  var extraBytes = len % 3;
  var output = "";
  var parts = [];
  var maxChunkLength = 16383;
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(
      encodeChunk(
        uint8,
        i,
        i + maxChunkLength > len2 ? len2 : i + maxChunkLength
      )
    );
  }
  if (extraBytes === 1) {
    tmp = uint8[len - 1];
    output += lookup[tmp >> 2];
    output += lookup[tmp << 4 & 63];
    output += "==";
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + uint8[len - 1];
    output += lookup[tmp >> 10];
    output += lookup[tmp >> 4 & 63];
    output += lookup[tmp << 2 & 63];
    output += "=";
  }
  parts.push(output);
  return parts.join("");
}
Buffer.TYPED_ARRAY_SUPPORT = globalThis.TYPED_ARRAY_SUPPORT !== void 0 ? globalThis.TYPED_ARRAY_SUPPORT : true;
function kMaxLength() {
  return Buffer.TYPED_ARRAY_SUPPORT ? 2147483647 : 1073741823;
}
function createBuffer(that, length) {
  if (kMaxLength() < length) {
    throw new RangeError("Invalid typed array length");
  }
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    that = new Uint8Array(length);
    that.__proto__ = Buffer.prototype;
  } else {
    if (that === null) {
      that = new Buffer(length);
    }
    that.length = length;
  }
  return that;
}
function Buffer(arg, encodingOrOffset, length) {
  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
    return new Buffer(arg, encodingOrOffset, length);
  }
  if (typeof arg === "number") {
    if (typeof encodingOrOffset === "string") {
      throw new Error(
        "If encoding is specified then the first argument must be a string"
      );
    }
    return allocUnsafe(this, arg);
  }
  return from(this, arg, encodingOrOffset, length);
}
Buffer.poolSize = 8192;
Buffer._augment = function(arr) {
  arr.__proto__ = Buffer.prototype;
  return arr;
};
function from(that, value, encodingOrOffset, length) {
  if (typeof value === "number") {
    throw new TypeError('"value" argument must not be a number');
  }
  if (typeof ArrayBuffer !== "undefined" && value instanceof ArrayBuffer) {
    return fromArrayBuffer(that, value, encodingOrOffset, length);
  }
  if (typeof value === "string") {
    return fromString(that, value, encodingOrOffset);
  }
  return fromObject(that, value);
}
Buffer.from = function(value, encodingOrOffset, length) {
  return from(null, value, encodingOrOffset, length);
};
Buffer.kMaxLength = kMaxLength();
if (Buffer.TYPED_ARRAY_SUPPORT) {
  Buffer.prototype.__proto__ = Uint8Array.prototype;
  Buffer.__proto__ = Uint8Array;
  if (typeof Symbol !== "undefined" && Symbol.species && Buffer[Symbol.species] === Buffer) {
  }
}
function assertSize(size) {
  if (typeof size !== "number") {
    throw new TypeError('"size" argument must be a number');
  } else if (size < 0) {
    throw new RangeError('"size" argument must not be negative');
  }
}
function alloc(that, size, fill2, encoding) {
  assertSize(size);
  if (size <= 0) {
    return createBuffer(that, size);
  }
  if (fill2 !== void 0) {
    return typeof encoding === "string" ? createBuffer(that, size).fill(fill2, encoding) : createBuffer(that, size).fill(fill2);
  }
  return createBuffer(that, size);
}
Buffer.alloc = function(size, fill2, encoding) {
  return alloc(null, size, fill2, encoding);
};
function allocUnsafe(that, size) {
  assertSize(size);
  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0);
  if (!Buffer.TYPED_ARRAY_SUPPORT) {
    for (var i = 0; i < size; ++i) {
      that[i] = 0;
    }
  }
  return that;
}
Buffer.allocUnsafe = function(size) {
  return allocUnsafe(null, size);
};
Buffer.allocUnsafeSlow = function(size) {
  return allocUnsafe(null, size);
};
function fromString(that, string, encoding) {
  if (typeof encoding !== "string" || encoding === "") {
    encoding = "utf8";
  }
  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('"encoding" must be a valid string encoding');
  }
  var length = byteLength(string, encoding) | 0;
  that = createBuffer(that, length);
  var actual = that.write(string, encoding);
  if (actual !== length) {
    that = that.slice(0, actual);
  }
  return that;
}
function fromArrayLike(that, array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0;
  that = createBuffer(that, length);
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255;
  }
  return that;
}
function fromArrayBuffer(that, array, byteOffset, length) {
  array.byteLength;
  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError("'offset' is out of bounds");
  }
  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError("'length' is out of bounds");
  }
  if (byteOffset === void 0 && length === void 0) {
    array = new Uint8Array(array);
  } else if (length === void 0) {
    array = new Uint8Array(array, byteOffset);
  } else {
    array = new Uint8Array(array, byteOffset, length);
  }
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    that = array;
    that.__proto__ = Buffer.prototype;
  } else {
    that = fromArrayLike(that, array);
  }
  return that;
}
function fromObject(that, obj) {
  if (internalIsBuffer(obj)) {
    var len = checked(obj.length) | 0;
    that = createBuffer(that, len);
    if (that.length === 0) {
      return that;
    }
    obj.copy(that, 0, 0, len);
    return that;
  }
  if (obj) {
    if (typeof ArrayBuffer !== "undefined" && obj.buffer instanceof ArrayBuffer || "length" in obj) {
      if (typeof obj.length !== "number" || isnan(obj.length)) {
        return createBuffer(that, 0);
      }
      return fromArrayLike(that, obj);
    }
    if (obj.type === "Buffer" && Array.isArray(obj.data)) {
      return fromArrayLike(that, obj.data);
    }
  }
  throw new TypeError(
    "First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object."
  );
}
function checked(length) {
  if (length >= kMaxLength()) {
    throw new RangeError(
      "Attempt to allocate Buffer larger than maximum size: 0x" + kMaxLength().toString(16) + " bytes"
    );
  }
  return length | 0;
}
Buffer.isBuffer = isBuffer;
function internalIsBuffer(b) {
  return !!(b != null && b._isBuffer);
}
Buffer.compare = function compare(a, b) {
  if (!internalIsBuffer(a) || !internalIsBuffer(b)) {
    throw new TypeError("Arguments must be Buffers");
  }
  if (a === b)
    return 0;
  var x = a.length;
  var y = b.length;
  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i];
      y = b[i];
      break;
    }
  }
  if (x < y)
    return -1;
  if (y < x)
    return 1;
  return 0;
};
Buffer.isEncoding = function isEncoding(encoding) {
  switch (String(encoding).toLowerCase()) {
    case "hex":
    case "utf8":
    case "utf-8":
    case "ascii":
    case "latin1":
    case "binary":
    case "base64":
    case "ucs2":
    case "ucs-2":
    case "utf16le":
    case "utf-16le":
      return true;
    default:
      return false;
  }
};
Buffer.concat = function concat(list, length) {
  if (!Array.isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers');
  }
  if (list.length === 0) {
    return Buffer.alloc(0);
  }
  var i;
  if (length === void 0) {
    length = 0;
    for (i = 0; i < list.length; ++i) {
      length += list[i].length;
    }
  }
  var buffer = Buffer.allocUnsafe(length);
  var pos = 0;
  for (i = 0; i < list.length; ++i) {
    var buf = list[i];
    if (!internalIsBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers');
    }
    buf.copy(buffer, pos);
    pos += buf.length;
  }
  return buffer;
};
function byteLength(string, encoding) {
  if (internalIsBuffer(string)) {
    return string.length;
  }
  if (typeof ArrayBuffer !== "undefined" && typeof ArrayBuffer.isView === "function" && (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
    return string.byteLength;
  }
  if (typeof string !== "string") {
    string = "" + string;
  }
  var len = string.length;
  if (len === 0)
    return 0;
  var loweredCase = false;
  for (; ; ) {
    switch (encoding) {
      case "ascii":
      case "latin1":
      case "binary":
        return len;
      case "utf8":
      case "utf-8":
      case void 0:
        return utf8ToBytes(string).length;
      case "ucs2":
      case "ucs-2":
      case "utf16le":
      case "utf-16le":
        return len * 2;
      case "hex":
        return len >>> 1;
      case "base64":
        return base64ToBytes(string).length;
      default:
        if (loweredCase)
          return utf8ToBytes(string).length;
        encoding = ("" + encoding).toLowerCase();
        loweredCase = true;
    }
  }
}
Buffer.byteLength = byteLength;
function slowToString(encoding, start, end) {
  var loweredCase = false;
  if (start === void 0 || start < 0) {
    start = 0;
  }
  if (start > this.length) {
    return "";
  }
  if (end === void 0 || end > this.length) {
    end = this.length;
  }
  if (end <= 0) {
    return "";
  }
  end >>>= 0;
  start >>>= 0;
  if (end <= start) {
    return "";
  }
  if (!encoding)
    encoding = "utf8";
  while (true) {
    switch (encoding) {
      case "hex":
        return hexSlice(this, start, end);
      case "utf8":
      case "utf-8":
        return utf8Slice(this, start, end);
      case "ascii":
        return asciiSlice(this, start, end);
      case "latin1":
      case "binary":
        return latin1Slice(this, start, end);
      case "base64":
        return base64Slice(this, start, end);
      case "ucs2":
      case "ucs-2":
      case "utf16le":
      case "utf-16le":
        return utf16leSlice(this, start, end);
      default:
        if (loweredCase)
          throw new TypeError("Unknown encoding: " + encoding);
        encoding = (encoding + "").toLowerCase();
        loweredCase = true;
    }
  }
}
Buffer.prototype._isBuffer = true;
function swap(b, n, m) {
  var i = b[n];
  b[n] = b[m];
  b[m] = i;
}
Buffer.prototype.swap16 = function swap16() {
  var len = this.length;
  if (len % 2 !== 0) {
    throw new RangeError("Buffer size must be a multiple of 16-bits");
  }
  for (var i = 0; i < len; i += 2) {
    swap(this, i, i + 1);
  }
  return this;
};
Buffer.prototype.swap32 = function swap32() {
  var len = this.length;
  if (len % 4 !== 0) {
    throw new RangeError("Buffer size must be a multiple of 32-bits");
  }
  for (var i = 0; i < len; i += 4) {
    swap(this, i, i + 3);
    swap(this, i + 1, i + 2);
  }
  return this;
};
Buffer.prototype.swap64 = function swap64() {
  var len = this.length;
  if (len % 8 !== 0) {
    throw new RangeError("Buffer size must be a multiple of 64-bits");
  }
  for (var i = 0; i < len; i += 8) {
    swap(this, i, i + 7);
    swap(this, i + 1, i + 6);
    swap(this, i + 2, i + 5);
    swap(this, i + 3, i + 4);
  }
  return this;
};
Buffer.prototype.toString = function toString() {
  var length = this.length | 0;
  if (length === 0)
    return "";
  if (arguments.length === 0)
    return utf8Slice(this, 0, length);
  return slowToString.apply(this, arguments);
};
Buffer.prototype.equals = function equals(b) {
  if (!internalIsBuffer(b))
    throw new TypeError("Argument must be a Buffer");
  if (this === b)
    return true;
  return Buffer.compare(this, b) === 0;
};
Buffer.prototype.compare = function compare2(target, start, end, thisStart, thisEnd) {
  if (!internalIsBuffer(target)) {
    throw new TypeError("Argument must be a Buffer");
  }
  if (start === void 0) {
    start = 0;
  }
  if (end === void 0) {
    end = target ? target.length : 0;
  }
  if (thisStart === void 0) {
    thisStart = 0;
  }
  if (thisEnd === void 0) {
    thisEnd = this.length;
  }
  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError("out of range index");
  }
  if (thisStart >= thisEnd && start >= end) {
    return 0;
  }
  if (thisStart >= thisEnd) {
    return -1;
  }
  if (start >= end) {
    return 1;
  }
  start >>>= 0;
  end >>>= 0;
  thisStart >>>= 0;
  thisEnd >>>= 0;
  if (this === target)
    return 0;
  var x = thisEnd - thisStart;
  var y = end - start;
  var len = Math.min(x, y);
  var thisCopy = this.slice(thisStart, thisEnd);
  var targetCopy = target.slice(start, end);
  for (var i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i];
      y = targetCopy[i];
      break;
    }
  }
  if (x < y)
    return -1;
  if (y < x)
    return 1;
  return 0;
};
function bidirectionalIndexOf(buffer, val, byteOffset, encoding, dir) {
  if (buffer.length === 0)
    return -1;
  if (typeof byteOffset === "string") {
    encoding = byteOffset;
    byteOffset = 0;
  } else if (byteOffset > 2147483647) {
    byteOffset = 2147483647;
  } else if (byteOffset < -2147483648) {
    byteOffset = -2147483648;
  }
  byteOffset = +byteOffset;
  if (isNaN(byteOffset)) {
    byteOffset = dir ? 0 : buffer.length - 1;
  }
  if (byteOffset < 0)
    byteOffset = buffer.length + byteOffset;
  if (byteOffset >= buffer.length) {
    if (dir)
      return -1;
    else
      byteOffset = buffer.length - 1;
  } else if (byteOffset < 0) {
    if (dir)
      byteOffset = 0;
    else
      return -1;
  }
  if (typeof val === "string") {
    val = Buffer.from(val, encoding);
  }
  if (internalIsBuffer(val)) {
    if (val.length === 0) {
      return -1;
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir);
  } else if (typeof val === "number") {
    val = val & 255;
    if (Buffer.TYPED_ARRAY_SUPPORT && typeof Uint8Array.prototype.indexOf === "function") {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(
          buffer,
          val,
          byteOffset
        );
      } else {
        return Uint8Array.prototype.lastIndexOf.call(
          buffer,
          val,
          byteOffset
        );
      }
    }
    return arrayIndexOf(buffer, [val], byteOffset, encoding, dir);
  }
  throw new TypeError("val must be string, number or Buffer");
}
function arrayIndexOf(arr, val, byteOffset, encoding, dir) {
  var indexSize = 1;
  var arrLength = arr.length;
  var valLength = val.length;
  if (encoding !== void 0) {
    encoding = String(encoding).toLowerCase();
    if (encoding === "ucs2" || encoding === "ucs-2" || encoding === "utf16le" || encoding === "utf-16le") {
      if (arr.length < 2 || val.length < 2) {
        return -1;
      }
      indexSize = 2;
      arrLength /= 2;
      valLength /= 2;
      byteOffset /= 2;
    }
  }
  function read(buf, i2) {
    if (indexSize === 1) {
      return buf[i2];
    } else {
      return buf.readUInt16BE(i2 * indexSize);
    }
  }
  var i;
  if (dir) {
    var foundIndex = -1;
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1)
          foundIndex = i;
        if (i - foundIndex + 1 === valLength)
          return foundIndex * indexSize;
      } else {
        if (foundIndex !== -1)
          i -= i - foundIndex;
        foundIndex = -1;
      }
    }
  } else {
    if (byteOffset + valLength > arrLength)
      byteOffset = arrLength - valLength;
    for (i = byteOffset; i >= 0; i--) {
      var found = true;
      for (var j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false;
          break;
        }
      }
      if (found)
        return i;
    }
  }
  return -1;
}
Buffer.prototype.includes = function includes(val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1;
};
Buffer.prototype.indexOf = function indexOf(val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true);
};
Buffer.prototype.lastIndexOf = function lastIndexOf(val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false);
};
function hexWrite(buf, string, offset, length) {
  offset = Number(offset) || 0;
  var remaining = buf.length - offset;
  if (!length) {
    length = remaining;
  } else {
    length = Number(length);
    if (length > remaining) {
      length = remaining;
    }
  }
  var strLen = string.length;
  if (strLen % 2 !== 0)
    throw new TypeError("Invalid hex string");
  if (length > strLen / 2) {
    length = strLen / 2;
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16);
    if (isNaN(parsed))
      return i;
    buf[offset + i] = parsed;
  }
  return i;
}
function utf8Write(buf, string, offset, length) {
  return blitBuffer(
    utf8ToBytes(string, buf.length - offset),
    buf,
    offset,
    length
  );
}
function asciiWrite(buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length);
}
function latin1Write(buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length);
}
function base64Write(buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length);
}
function ucs2Write(buf, string, offset, length) {
  return blitBuffer(
    utf16leToBytes(string, buf.length - offset),
    buf,
    offset,
    length
  );
}
Buffer.prototype.write = function write(string, offset, length, encoding) {
  if (offset === void 0) {
    encoding = "utf8";
    length = this.length;
    offset = 0;
  } else if (length === void 0 && typeof offset === "string") {
    encoding = offset;
    length = this.length;
    offset = 0;
  } else if (isFinite(offset)) {
    offset = offset | 0;
    if (isFinite(length)) {
      length = length | 0;
      if (encoding === void 0)
        encoding = "utf8";
    } else {
      encoding = length;
      length = void 0;
    }
  } else {
    throw new Error(
      "Buffer.write(string, encoding, offset[, length]) is no longer supported"
    );
  }
  var remaining = this.length - offset;
  if (length === void 0 || length > remaining)
    length = remaining;
  if (string.length > 0 && (length < 0 || offset < 0) || offset > this.length) {
    throw new RangeError("Attempt to write outside buffer bounds");
  }
  if (!encoding)
    encoding = "utf8";
  var loweredCase = false;
  for (; ; ) {
    switch (encoding) {
      case "hex":
        return hexWrite(this, string, offset, length);
      case "utf8":
      case "utf-8":
        return utf8Write(this, string, offset, length);
      case "ascii":
        return asciiWrite(this, string, offset, length);
      case "latin1":
      case "binary":
        return latin1Write(this, string, offset, length);
      case "base64":
        return base64Write(this, string, offset, length);
      case "ucs2":
      case "ucs-2":
      case "utf16le":
      case "utf-16le":
        return ucs2Write(this, string, offset, length);
      default:
        if (loweredCase)
          throw new TypeError("Unknown encoding: " + encoding);
        encoding = ("" + encoding).toLowerCase();
        loweredCase = true;
    }
  }
};
Buffer.prototype.toJSON = function toJSON() {
  return {
    type: "Buffer",
    data: Array.prototype.slice.call(this._arr || this, 0)
  };
};
function base64Slice(buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64fromByteArray(buf);
  } else {
    return base64fromByteArray(buf.slice(start, end));
  }
}
function utf8Slice(buf, start, end) {
  end = Math.min(buf.length, end);
  var res = [];
  var i = start;
  while (i < end) {
    var firstByte = buf[i];
    var codePoint = null;
    var bytesPerSequence = firstByte > 239 ? 4 : firstByte > 223 ? 3 : firstByte > 191 ? 2 : 1;
    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint;
      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 128) {
            codePoint = firstByte;
          }
          break;
        case 2:
          secondByte = buf[i + 1];
          if ((secondByte & 192) === 128) {
            tempCodePoint = (firstByte & 31) << 6 | secondByte & 63;
            if (tempCodePoint > 127) {
              codePoint = tempCodePoint;
            }
          }
          break;
        case 3:
          secondByte = buf[i + 1];
          thirdByte = buf[i + 2];
          if ((secondByte & 192) === 128 && (thirdByte & 192) === 128) {
            tempCodePoint = (firstByte & 15) << 12 | (secondByte & 63) << 6 | thirdByte & 63;
            if (tempCodePoint > 2047 && (tempCodePoint < 55296 || tempCodePoint > 57343)) {
              codePoint = tempCodePoint;
            }
          }
          break;
        case 4:
          secondByte = buf[i + 1];
          thirdByte = buf[i + 2];
          fourthByte = buf[i + 3];
          if ((secondByte & 192) === 128 && (thirdByte & 192) === 128 && (fourthByte & 192) === 128) {
            tempCodePoint = (firstByte & 15) << 18 | (secondByte & 63) << 12 | (thirdByte & 63) << 6 | fourthByte & 63;
            if (tempCodePoint > 65535 && tempCodePoint < 1114112) {
              codePoint = tempCodePoint;
            }
          }
      }
    }
    if (codePoint === null) {
      codePoint = 65533;
      bytesPerSequence = 1;
    } else if (codePoint > 65535) {
      codePoint -= 65536;
      res.push(codePoint >>> 10 & 1023 | 55296);
      codePoint = 56320 | codePoint & 1023;
    }
    res.push(codePoint);
    i += bytesPerSequence;
  }
  return decodeCodePointsArray(res);
}
var MAX_ARGUMENTS_LENGTH = 4096;
function decodeCodePointsArray(codePoints) {
  var len = codePoints.length;
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints);
  }
  var res = "";
  var i = 0;
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    );
  }
  return res;
}
function asciiSlice(buf, start, end) {
  var ret = "";
  end = Math.min(buf.length, end);
  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 127);
  }
  return ret;
}
function latin1Slice(buf, start, end) {
  var ret = "";
  end = Math.min(buf.length, end);
  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i]);
  }
  return ret;
}
function hexSlice(buf, start, end) {
  var len = buf.length;
  if (!start || start < 0)
    start = 0;
  if (!end || end < 0 || end > len)
    end = len;
  var out = "";
  for (var i = start; i < end; ++i) {
    out += toHex(buf[i]);
  }
  return out;
}
function utf16leSlice(buf, start, end) {
  var bytes = buf.slice(start, end);
  var res = "";
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256);
  }
  return res;
}
Buffer.prototype.slice = function slice(start, end) {
  var len = this.length;
  start = ~~start;
  end = end === void 0 ? len : ~~end;
  if (start < 0) {
    start += len;
    if (start < 0)
      start = 0;
  } else if (start > len) {
    start = len;
  }
  if (end < 0) {
    end += len;
    if (end < 0)
      end = 0;
  } else if (end > len) {
    end = len;
  }
  if (end < start)
    end = start;
  var newBuf;
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    newBuf = this.subarray(start, end);
    newBuf.__proto__ = Buffer.prototype;
  } else {
    var sliceLen = end - start;
    newBuf = new Buffer(sliceLen, void 0);
    for (var i = 0; i < sliceLen; ++i) {
      newBuf[i] = this[i + start];
    }
  }
  return newBuf;
};
function checkOffset(offset, ext, length) {
  if (offset % 1 !== 0 || offset < 0)
    throw new RangeError("offset is not uint");
  if (offset + ext > length)
    throw new RangeError("Trying to access beyond buffer length");
}
Buffer.prototype.readUIntLE = function readUIntLE(offset, byteLength2, noAssert) {
  offset = offset | 0;
  byteLength2 = byteLength2 | 0;
  if (!noAssert)
    checkOffset(offset, byteLength2, this.length);
  var val = this[offset];
  var mul = 1;
  var i = 0;
  while (++i < byteLength2 && (mul *= 256)) {
    val += this[offset + i] * mul;
  }
  return val;
};
Buffer.prototype.readUIntBE = function readUIntBE(offset, byteLength2, noAssert) {
  offset = offset | 0;
  byteLength2 = byteLength2 | 0;
  if (!noAssert) {
    checkOffset(offset, byteLength2, this.length);
  }
  var val = this[offset + --byteLength2];
  var mul = 1;
  while (byteLength2 > 0 && (mul *= 256)) {
    val += this[offset + --byteLength2] * mul;
  }
  return val;
};
Buffer.prototype.readUInt8 = function readUInt8(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 1, this.length);
  return this[offset];
};
Buffer.prototype.readUInt16LE = function readUInt16LE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 2, this.length);
  return this[offset] | this[offset + 1] << 8;
};
Buffer.prototype.readUInt16BE = function readUInt16BE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 2, this.length);
  return this[offset] << 8 | this[offset + 1];
};
Buffer.prototype.readUInt32LE = function readUInt32LE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 4, this.length);
  return (this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16) + this[offset + 3] * 16777216;
};
Buffer.prototype.readUInt32BE = function readUInt32BE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 4, this.length);
  return this[offset] * 16777216 + (this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3]);
};
Buffer.prototype.readIntLE = function readIntLE(offset, byteLength2, noAssert) {
  offset = offset | 0;
  byteLength2 = byteLength2 | 0;
  if (!noAssert)
    checkOffset(offset, byteLength2, this.length);
  var val = this[offset];
  var mul = 1;
  var i = 0;
  while (++i < byteLength2 && (mul *= 256)) {
    val += this[offset + i] * mul;
  }
  mul *= 128;
  if (val >= mul)
    val -= Math.pow(2, 8 * byteLength2);
  return val;
};
Buffer.prototype.readIntBE = function readIntBE(offset, byteLength2, noAssert) {
  offset = offset | 0;
  byteLength2 = byteLength2 | 0;
  if (!noAssert)
    checkOffset(offset, byteLength2, this.length);
  var i = byteLength2;
  var mul = 1;
  var val = this[offset + --i];
  while (i > 0 && (mul *= 256)) {
    val += this[offset + --i] * mul;
  }
  mul *= 128;
  if (val >= mul)
    val -= Math.pow(2, 8 * byteLength2);
  return val;
};
Buffer.prototype.readInt8 = function readInt8(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 1, this.length);
  if (!(this[offset] & 128))
    return this[offset];
  return (255 - this[offset] + 1) * -1;
};
Buffer.prototype.readInt16LE = function readInt16LE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 2, this.length);
  var val = this[offset] | this[offset + 1] << 8;
  return val & 32768 ? val | 4294901760 : val;
};
Buffer.prototype.readInt16BE = function readInt16BE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 2, this.length);
  var val = this[offset + 1] | this[offset] << 8;
  return val & 32768 ? val | 4294901760 : val;
};
Buffer.prototype.readInt32LE = function readInt32LE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 4, this.length);
  return this[offset] | this[offset + 1] << 8 | this[offset + 2] << 16 | this[offset + 3] << 24;
};
Buffer.prototype.readInt32BE = function readInt32BE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 4, this.length);
  return this[offset] << 24 | this[offset + 1] << 16 | this[offset + 2] << 8 | this[offset + 3];
};
Buffer.prototype.readFloatLE = function readFloatLE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 4, this.length);
  return ieee754read(this, offset, true, 23, 4);
};
Buffer.prototype.readFloatBE = function readFloatBE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 4, this.length);
  return ieee754read(this, offset, false, 23, 4);
};
Buffer.prototype.readDoubleLE = function readDoubleLE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 8, this.length);
  return ieee754read(this, offset, true, 52, 8);
};
Buffer.prototype.readDoubleBE = function readDoubleBE(offset, noAssert) {
  if (!noAssert)
    checkOffset(offset, 8, this.length);
  return ieee754read(this, offset, false, 52, 8);
};
function checkInt(buf, value, offset, ext, max, min) {
  if (!internalIsBuffer(buf))
    throw new TypeError('"buffer" argument must be a Buffer instance');
  if (value > max || value < min)
    throw new RangeError('"value" argument is out of bounds');
  if (offset + ext > buf.length)
    throw new RangeError("Index out of range");
}
Buffer.prototype.writeUIntLE = function writeUIntLE(value, offset, byteLength2, noAssert) {
  value = +value;
  offset = offset | 0;
  byteLength2 = byteLength2 | 0;
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength2) - 1;
    checkInt(this, value, offset, byteLength2, maxBytes, 0);
  }
  var mul = 1;
  var i = 0;
  this[offset] = value & 255;
  while (++i < byteLength2 && (mul *= 256)) {
    this[offset + i] = value / mul & 255;
  }
  return offset + byteLength2;
};
Buffer.prototype.writeUIntBE = function writeUIntBE(value, offset, byteLength2, noAssert) {
  value = +value;
  offset = offset | 0;
  byteLength2 = byteLength2 | 0;
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength2) - 1;
    checkInt(this, value, offset, byteLength2, maxBytes, 0);
  }
  var i = byteLength2 - 1;
  var mul = 1;
  this[offset + i] = value & 255;
  while (--i >= 0 && (mul *= 256)) {
    this[offset + i] = value / mul & 255;
  }
  return offset + byteLength2;
};
Buffer.prototype.writeUInt8 = function writeUInt8(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 1, 255, 0);
  if (!Buffer.TYPED_ARRAY_SUPPORT)
    value = Math.floor(value);
  this[offset] = value & 255;
  return offset + 1;
};
function objectWriteUInt16(buf, value, offset, littleEndian) {
  if (value < 0)
    value = 65535 + value + 1;
  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
    buf[offset + i] = (value & 255 << 8 * (littleEndian ? i : 1 - i)) >>> (littleEndian ? i : 1 - i) * 8;
  }
}
Buffer.prototype.writeUInt16LE = function writeUInt16LE(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 2, 65535, 0);
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = value & 255;
    this[offset + 1] = value >>> 8;
  } else {
    objectWriteUInt16(this, value, offset, true);
  }
  return offset + 2;
};
Buffer.prototype.writeUInt16BE = function writeUInt16BE(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 2, 65535, 0);
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = value >>> 8;
    this[offset + 1] = value & 255;
  } else {
    objectWriteUInt16(this, value, offset, false);
  }
  return offset + 2;
};
function objectWriteUInt32(buf, value, offset, littleEndian) {
  if (value < 0)
    value = 4294967295 + value + 1;
  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
    buf[offset + i] = value >>> (littleEndian ? i : 3 - i) * 8 & 255;
  }
}
Buffer.prototype.writeUInt32LE = function writeUInt32LE(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 4, 4294967295, 0);
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset + 3] = value >>> 24;
    this[offset + 2] = value >>> 16;
    this[offset + 1] = value >>> 8;
    this[offset] = value & 255;
  } else {
    objectWriteUInt32(this, value, offset, true);
  }
  return offset + 4;
};
Buffer.prototype.writeUInt32BE = function writeUInt32BE(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 4, 4294967295, 0);
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = value >>> 24;
    this[offset + 1] = value >>> 16;
    this[offset + 2] = value >>> 8;
    this[offset + 3] = value & 255;
  } else {
    objectWriteUInt32(this, value, offset, false);
  }
  return offset + 4;
};
Buffer.prototype.writeIntLE = function writeIntLE(value, offset, byteLength2, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength2 - 1);
    checkInt(this, value, offset, byteLength2, limit - 1, -limit);
  }
  var i = 0;
  var mul = 1;
  var sub = 0;
  this[offset] = value & 255;
  while (++i < byteLength2 && (mul *= 256)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1;
    }
    this[offset + i] = (value / mul >> 0) - sub & 255;
  }
  return offset + byteLength2;
};
Buffer.prototype.writeIntBE = function writeIntBE(value, offset, byteLength2, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength2 - 1);
    checkInt(this, value, offset, byteLength2, limit - 1, -limit);
  }
  var i = byteLength2 - 1;
  var mul = 1;
  var sub = 0;
  this[offset + i] = value & 255;
  while (--i >= 0 && (mul *= 256)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1;
    }
    this[offset + i] = (value / mul >> 0) - sub & 255;
  }
  return offset + byteLength2;
};
Buffer.prototype.writeInt8 = function writeInt8(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 1, 127, -128);
  if (!Buffer.TYPED_ARRAY_SUPPORT)
    value = Math.floor(value);
  if (value < 0)
    value = 255 + value + 1;
  this[offset] = value & 255;
  return offset + 1;
};
Buffer.prototype.writeInt16LE = function writeInt16LE(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 2, 32767, -32768);
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = value & 255;
    this[offset + 1] = value >>> 8;
  } else {
    objectWriteUInt16(this, value, offset, true);
  }
  return offset + 2;
};
Buffer.prototype.writeInt16BE = function writeInt16BE(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 2, 32767, -32768);
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = value >>> 8;
    this[offset + 1] = value & 255;
  } else {
    objectWriteUInt16(this, value, offset, false);
  }
  return offset + 2;
};
Buffer.prototype.writeInt32LE = function writeInt32LE(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 4, 2147483647, -2147483648);
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = value & 255;
    this[offset + 1] = value >>> 8;
    this[offset + 2] = value >>> 16;
    this[offset + 3] = value >>> 24;
  } else {
    objectWriteUInt32(this, value, offset, true);
  }
  return offset + 4;
};
Buffer.prototype.writeInt32BE = function writeInt32BE(value, offset, noAssert) {
  value = +value;
  offset = offset | 0;
  if (!noAssert)
    checkInt(this, value, offset, 4, 2147483647, -2147483648);
  if (value < 0)
    value = 4294967295 + value + 1;
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = value >>> 24;
    this[offset + 1] = value >>> 16;
    this[offset + 2] = value >>> 8;
    this[offset + 3] = value & 255;
  } else {
    objectWriteUInt32(this, value, offset, false);
  }
  return offset + 4;
};
function checkIEEE754(buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length)
    throw new RangeError("Index out of range");
  if (offset < 0)
    throw new RangeError("Index out of range");
}
function writeFloat(buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(
      buf,
      value,
      offset,
      4,
      34028234663852886e22,
      -34028234663852886e22
    );
  }
  ieee754write(buf, value, offset, littleEndian, 23, 4);
  return offset + 4;
}
Buffer.prototype.writeFloatLE = function writeFloatLE(value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert);
};
Buffer.prototype.writeFloatBE = function writeFloatBE(value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert);
};
function writeDouble(buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(
      buf,
      value,
      offset,
      8,
      17976931348623157e292,
      -17976931348623157e292
    );
  }
  ieee754write(buf, value, offset, littleEndian, 52, 8);
  return offset + 8;
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE(value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert);
};
Buffer.prototype.writeDoubleBE = function writeDoubleBE(value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert);
};
Buffer.prototype.copy = function copy(target, targetStart, start, end) {
  if (!start)
    start = 0;
  if (!end && end !== 0)
    end = this.length;
  if (targetStart >= target.length)
    targetStart = target.length;
  if (!targetStart)
    targetStart = 0;
  if (end > 0 && end < start)
    end = start;
  if (end === start)
    return 0;
  if (target.length === 0 || this.length === 0)
    return 0;
  if (targetStart < 0) {
    throw new RangeError("targetStart out of bounds");
  }
  if (start < 0 || start >= this.length)
    throw new RangeError("sourceStart out of bounds");
  if (end < 0)
    throw new RangeError("sourceEnd out of bounds");
  if (end > this.length)
    end = this.length;
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start;
  }
  var len = end - start;
  var i;
  if (this === target && start < targetStart && targetStart < end) {
    for (i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start];
    }
  } else if (len < 1e3 || !Buffer.TYPED_ARRAY_SUPPORT) {
    for (i = 0; i < len; ++i) {
      target[i + targetStart] = this[i + start];
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, start + len),
      targetStart
    );
  }
  return len;
};
Buffer.prototype.fill = function fill(val, start, end, encoding) {
  if (typeof val === "string") {
    if (typeof start === "string") {
      encoding = start;
      start = 0;
      end = this.length;
    } else if (typeof end === "string") {
      encoding = end;
      end = this.length;
    }
    if (val.length === 1) {
      var code = val.charCodeAt(0);
      if (code < 256) {
        val = code;
      }
    }
    if (encoding !== void 0 && typeof encoding !== "string") {
      throw new TypeError("encoding must be a string");
    }
    if (typeof encoding === "string" && !Buffer.isEncoding(encoding)) {
      throw new TypeError("Unknown encoding: " + encoding);
    }
  } else if (typeof val === "number") {
    val = val & 255;
  }
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError("Out of range index");
  }
  if (end <= start) {
    return this;
  }
  start = start >>> 0;
  end = end === void 0 ? this.length : end >>> 0;
  if (!val)
    val = 0;
  var i;
  if (typeof val === "number") {
    for (i = start; i < end; ++i) {
      this[i] = val;
    }
  } else {
    var bytes = internalIsBuffer(val) ? val : utf8ToBytes(new Buffer(val, encoding).toString());
    var len = bytes.length;
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len];
    }
  }
  return this;
};
var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g;
function base64clean(str) {
  str = stringtrim(str).replace(INVALID_BASE64_RE, "");
  if (str.length < 2)
    return "";
  while (str.length % 4 !== 0) {
    str = str + "=";
  }
  return str;
}
function stringtrim(str) {
  if (str.trim)
    return str.trim();
  return str.replace(/^\s+|\s+$/g, "");
}
function toHex(n) {
  if (n < 16)
    return "0" + n.toString(16);
  return n.toString(16);
}
function utf8ToBytes(string, units) {
  units = units || Infinity;
  var codePoint;
  var length = string.length;
  var leadSurrogate = null;
  var bytes = [];
  for (var i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i);
    if (codePoint > 55295 && codePoint < 57344) {
      if (!leadSurrogate) {
        if (codePoint > 56319) {
          if ((units -= 3) > -1)
            bytes.push(239, 191, 189);
          continue;
        } else if (i + 1 === length) {
          if ((units -= 3) > -1)
            bytes.push(239, 191, 189);
          continue;
        }
        leadSurrogate = codePoint;
        continue;
      }
      if (codePoint < 56320) {
        if ((units -= 3) > -1)
          bytes.push(239, 191, 189);
        leadSurrogate = codePoint;
        continue;
      }
      codePoint = (leadSurrogate - 55296 << 10 | codePoint - 56320) + 65536;
    } else if (leadSurrogate) {
      if ((units -= 3) > -1)
        bytes.push(239, 191, 189);
    }
    leadSurrogate = null;
    if (codePoint < 128) {
      if ((units -= 1) < 0)
        break;
      bytes.push(codePoint);
    } else if (codePoint < 2048) {
      if ((units -= 2) < 0)
        break;
      bytes.push(codePoint >> 6 | 192, codePoint & 63 | 128);
    } else if (codePoint < 65536) {
      if ((units -= 3) < 0)
        break;
      bytes.push(
        codePoint >> 12 | 224,
        codePoint >> 6 & 63 | 128,
        codePoint & 63 | 128
      );
    } else if (codePoint < 1114112) {
      if ((units -= 4) < 0)
        break;
      bytes.push(
        codePoint >> 18 | 240,
        codePoint >> 12 & 63 | 128,
        codePoint >> 6 & 63 | 128,
        codePoint & 63 | 128
      );
    } else {
      throw new Error("Invalid code point");
    }
  }
  return bytes;
}
function asciiToBytes(str) {
  var byteArray = [];
  for (var i = 0; i < str.length; ++i) {
    byteArray.push(str.charCodeAt(i) & 255);
  }
  return byteArray;
}
function utf16leToBytes(str, units) {
  var c, hi, lo;
  var byteArray = [];
  for (var i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0)
      break;
    c = str.charCodeAt(i);
    hi = c >> 8;
    lo = c % 256;
    byteArray.push(lo);
    byteArray.push(hi);
  }
  return byteArray;
}
function base64ToBytes(str) {
  return base64toByteArray(base64clean(str));
}
function blitBuffer(src, dst, offset, length) {
  for (var i = 0; i < length; ++i) {
    if (i + offset >= dst.length || i >= src.length)
      break;
    dst[i + offset] = src[i];
  }
  return i;
}
function isnan(val) {
  return val !== val;
}
function isBuffer(obj) {
  return obj != null && (!!obj._isBuffer || isFastBuffer(obj) || isSlowBuffer(obj));
}
function isFastBuffer(obj) {
  return !!obj.constructor && typeof obj.constructor.isBuffer === "function" && obj.constructor.isBuffer(obj);
}
function isSlowBuffer(obj) {
  return typeof obj.readFloatLE === "function" && typeof obj.slice === "function" && isFastBuffer(obj.slice(0, 0));
}
function ieee754read(buffer, offset, isLE, mLen, nBytes) {
  var e, m;
  var eLen = nBytes * 8 - mLen - 1;
  var eMax = (1 << eLen) - 1;
  var eBias = eMax >> 1;
  var nBits = -7;
  var i = isLE ? nBytes - 1 : 0;
  var d = isLE ? -1 : 1;
  var s = buffer[offset + i];
  i += d;
  e = s & (1 << -nBits) - 1;
  s >>= -nBits;
  nBits += eLen;
  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {
  }
  m = e & (1 << -nBits) - 1;
  e >>= -nBits;
  nBits += mLen;
  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {
  }
  if (e === 0) {
    e = 1 - eBias;
  } else if (e === eMax) {
    return m ? NaN : (s ? -1 : 1) * Infinity;
  } else {
    m = m + Math.pow(2, mLen);
    e = e - eBias;
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen);
}
function ieee754write(buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c;
  var eLen = nBytes * 8 - mLen - 1;
  var eMax = (1 << eLen) - 1;
  var eBias = eMax >> 1;
  var rt = mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0;
  var i = isLE ? 0 : nBytes - 1;
  var d = isLE ? 1 : -1;
  var s = value < 0 || value === 0 && 1 / value < 0 ? 1 : 0;
  value = Math.abs(value);
  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0;
    e = eMax;
  } else {
    e = Math.floor(Math.log(value) / Math.LN2);
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--;
      c *= 2;
    }
    if (e + eBias >= 1) {
      value += rt / c;
    } else {
      value += rt * Math.pow(2, 1 - eBias);
    }
    if (value * c >= 2) {
      e++;
      c /= 2;
    }
    if (e + eBias >= eMax) {
      m = 0;
      e = eMax;
    } else if (e + eBias >= 1) {
      m = (value * c - 1) * Math.pow(2, mLen);
      e = e + eBias;
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);
      e = 0;
    }
  }
  for (; mLen >= 8; buffer[offset + i] = m & 255, i += d, m /= 256, mLen -= 8) {
  }
  e = e << mLen | m;
  eLen += mLen;
  for (; eLen > 0; buffer[offset + i] = e & 255, i += d, e /= 256, eLen -= 8) {
  }
  buffer[offset + i - d] |= s * 128;
}

// src/utils.ts
function parseKey(headers) {
  const auth = headers.get("authorization");
  if (auth === null) {
    return "";
  } else if (auth.includes("Bearer")) {
    return auth.split(" ")[1];
  }
  return "";
}
async function sha256(message) {
  const msgBuffer = await new TextEncoder().encode(message);
  const hashBuffer = await crypto.subtle.digest("SHA-256", msgBuffer);
  return [...new Uint8Array(hashBuffer)].map((b) => b.toString(16).padStart(2, "0")).join("");
}

// src/providers/mistral.ts
var MistralInference = class {
  supplier = "mistral" /* MISTRAL */;
  endpoint = "https://api.mistral.ai/v1/chat/completions";
  async handle(req, env2, ctx) {
    const apiKey = parseKey(req.headers);
    const body = await req.json();
    const stream = body.stream || false;
    const response = await fetch(this.endpoint, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
        Authorization: `Bearer ${apiKey}`
      },
      body: JSON.stringify({
        model: body.model,
        messages: body.messages,
        temperature: body.temperature || 0.7,
        max_tokens: body.max_tokens || 1024,
        stream
      })
    });
    if (!response.ok) {
      return new Response(
        JSON.stringify({
          error: `Mistral API request failed: ${response.statusText}`
        }),
        {
          status: response.status,
          headers: { "Content-Type": "application/json" }
        }
      );
    }
    if (stream) {
      return new Response(response.body, {
        headers: { "Content-Type": "text/event-stream" }
      });
    } else {
      const data = await response.json();
      return new Response(JSON.stringify(data), {
        headers: { "Content-Type": "application/json" }
      });
    }
  }
};

// src/providers/groq.ts
var GroqInference = class {
  supplier = "groq" /* GROQ */;
  endpoint = "https://api.groq.com/openai/v1/chat/completions";
  async handle(req, env2, ctx) {
    const body = await req.json();
    const apiKey = parseKey(req.headers);
    const stream = body.stream ?? false;
    const model = body.model || "llama3-8b-8192";
    const messages = body.messages || [];
    const response = await fetch(this.endpoint, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
        "Authorization": `Bearer ${apiKey}`
      },
      body: JSON.stringify({
        model,
        messages,
        stream
      })
    });
    if (!response.ok) {
      return new Response(
        JSON.stringify({
          error: `Groq API request failed: ${response.statusText}`
        }),
        {
          status: response.status,
          headers: { "Content-Type": "application/json" }
        }
      );
    }
    if (stream) {
      return new Response(response.body, {
        headers: { "Content-Type": "text/event-stream" }
      });
    } else {
      const data = await response.json();
      return new Response(JSON.stringify(data), {
        headers: { "Content-Type": "application/json" }
      });
    }
  }
};

// src/providers/gemini.ts
function reformatInput(messages) {
  return messages.map((message) => ({
    role: message.role === "user" ? "user" : "model",
    parts: [{ text: message.content }]
  }));
}
var GeminiInference = class {
  endpoint = "https://generativelanguage.googleapis.com/v1beta/models";
  supplier = "gemini" /* GEMINI */;
  primaryEndpoint = "https://generativelanguage.googleapis.com/v1beta/models";
  fallbackEndpoint = "https://vercel.ddot.cc/gemini/v1";
  async prepareData(js) {
    let x = reformatInput(js.messages);
    if (x.length > 0 && x[0].role !== "user") {
      x.shift();
    }
    const { max_tokens, temperature, top_p, top_logprobs } = js;
    const config2 = {
      temperature: temperature || 0.9,
      maxOutputTokens: max_tokens || 4096,
      topP: top_p || 0.95,
      topK: top_logprobs || 32
    };
    return {
      contents: x,
      generationConfig: config2
    };
  }
  async handle(req, env2, ctx) {
    const jso = await req.json();
    console.log(jso);
    const model = jso.model || "gemini-1.5-flash";
    const key = parseKey(req.headers);
    const inputData = await this.prepareData(jso);
    console.log(inputData);
    let response = await this.tryEndpoint(
      this.primaryEndpoint,
      model,
      key,
      inputData
    );
    if (!response) {
      console.log("Primary endpoint failed. Attempting fallback endpoint.");
      response = await this.tryEndpoint(
        this.fallbackEndpoint,
        model,
        key,
        inputData
      );
    }
    if (!response) {
      return new Response(JSON.stringify({ error: "Both endpoints failed" }), {
        status: 500,
        headers: { "Content-Type": "application/json" }
      });
    }
    const responseJson = await response.json();
    console.log(responseJson);
    if (response.status !== 200) {
      return new Response(JSON.stringify(responseJson), {
        headers: {
          "Content-Type": "application/json"
        }
      });
    }
    const _response = {
      choices: [
        {
          message: {
            content: responseJson.candidates[0].content.parts[0].text,
            role: "model"
          }
        }
      ]
    };
    return new Response(JSON.stringify(_response), {
      headers: {
        "Content-Type": "application/json"
      }
    });
  }
  async tryEndpoint(endpoint, model, key, inputData) {
    const url = `${endpoint}/${model}:generateContent?key=${key}`;
    try {
      const response = await fetch(url, {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify(inputData)
      });
      if (response.ok) {
        return response;
      }
      return null;
    } catch (error) {
      console.error(`Error with endpoint ${endpoint}:`, error);
      return null;
    }
    return null;
  }
};

// src/providers/openai.ts
var OpenaiInference = class {
  supplier = "openai" /* OPENAI */;
  endpoint = "https://vercel.ddot.cc/openai/proxy/chat/completions";
  async handle(req, env2, ctx) {
    try {
      const apiKey = parseKey(req.headers);
      if (!apiKey) {
        throw new Error("API key is missing or invalid");
      }
      const body = await req.json();
      const stream = body.stream || false;
      console.log(`body: ${JSON.stringify(body)}`);
      const response = await fetch(this.endpoint, {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
          Authorization: `Bearer ${apiKey}`
        },
        body: JSON.stringify(body)
      });
      console.log(`OpenAI API response status: ${response.status}`);
      if (!response.ok) {
        return new Response(
          JSON.stringify({
            error: `OpenAI API request failed: ${response.statusText}`
          }),
          {
            status: response.status,
            headers: { "Content-Type": "application/json" }
          }
        );
      }
      if (stream) {
        return new Response(response.body, {
          headers: { "Content-Type": "text/event-stream" }
        });
      } else {
        const data = await response.json();
        return new Response(JSON.stringify(data), {
          headers: { "Content-Type": "application/json" }
        });
      }
    } catch (error) {
      console.error("Error in OpenaiInference.handle:", error);
      return new Response(
        JSON.stringify({
          error: error instanceof Error ? error.message : "Unknown error occurred"
        }),
        {
          status: 500,
          headers: { "Content-Type": "application/json" }
        }
      );
    }
  }
};

// src/models.ts
function parseSupplier(headers) {
  const s = headers.get("supplier");
  switch (s) {
    case "openai":
      return "openai" /* OPENAI */;
    case "groq":
      return "groq" /* GROQ */;
    case "gemini":
      return "gemini" /* GEMINI */;
    case "mistral":
      return "mistral" /* MISTRAL */;
    default:
      return "openai" /* OPENAI */;
  }
}

// src/v1.ts
async function fetch2(req, env2, ctx) {
  const llms = [
    new OpenaiInference(),
    new GroqInference(),
    new GeminiInference()
  ];
  const supplier = parseSupplier(req.headers);
  const llm = llms.find(
    (llm2) => llm2.supplier === supplier
  );
  console.log({ supplier, llm });
  if (llm) {
    return llm.handle(req, env2, ctx);
  } else {
    return new Response("supplier not found", { status: 404 });
  }
}

// src/v2.ts
async function cached(req, env2, ctx, infer) {
  const body = await req.clone().text();
  const hash = await sha256(body);
  const cacheUrl = new URL(req.url);
  const supplier = parseSupplier(req.headers);
  cacheUrl.pathname = `/post${cacheUrl.pathname}/${supplier}/${hash}`;
  console.log(cacheUrl.toString());
  const cacheKey = new Request(cacheUrl.toString(), {
    method: "GET"
  });
  const cache = caches.default;
  let response = await cache.match(cacheKey);
  console.log("response header", response?.headers);
  if (!response) {
    response = await infer.handle(req, env2, ctx);
    const clonedResponse = response.clone();
    const newHeaders = new Headers({
      "content-type": "application/json",
      "cache-control": "max-age=300"
    });
    const cachedResponse = new Response(clonedResponse.body, {
      status: clonedResponse.status,
      statusText: clonedResponse.statusText,
      headers: newHeaders
    });
    ctx.waitUntil(cache.put(cacheKey, cachedResponse.clone()));
    return response;
  } else {
    console.log("Cache hit", response);
    return response.clone();
  }
}
async function fetch3(req, env2, ctx) {
  const pathname = new URL(req.url).pathname;
  const supplier = pathname.split("/")[2];
  switch (supplier) {
    case "openai":
      return cached(req, env2, ctx, new OpenaiInference());
    case "groq":
      return cached(req, env2, ctx, new GroqInference());
    case "gemini":
      return cached(req, env2, ctx, new GeminiInference());
    case "mistral":
      return cached(req, env2, ctx, new MistralInference());
    default:
      return new Response("supported suppliers: openai, groq, gemini.", {
        status: 404
      });
  }
}

// src/index.ts
var src_default = {
  async fetch(req, env2, ctx) {
    const version2 = new URL(req.url).pathname.split("/")[1];
    if (req.method === "GET") {
      return Response.redirect("https://ioly.cc/v2cmo2", 302);
    }
    switch (version2) {
      case "v2":
        return await fetch3(req, env2, ctx);
      default:
        return await fetch2(req, env2, ctx);
    }
  }
};
export {
  src_default as default
};
/*! Bundled license information:

@esbuild-plugins/node-globals-polyfill/Buffer.js:
  (*!
   * The buffer module from node.js, for the browser.
   *
   * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
   * @license  MIT
   *)
*/
//# sourceMappingURL=index.js.map