(function () {

  /**
   * Expose `Emitter`.
   */

  // module.exports = Emitter;

  /**
   * Initialize a new `Emitter`.
   *
   * @api public
   */

  function Emitter(obj) {
    if (obj) return mixin(obj);
  };

  /**
   * Mixin the emitter properties.
   *
   * @param {Object} obj
   * @return {Object}
   * @api private
   */

  function mixin(obj) {
    for (var key in Emitter.prototype) {
      obj[key] = Emitter.prototype[key];
    }
    return obj;
  }

  /**
   * Listen on the given `event` with `fn`.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */

  Emitter.prototype.on =
    Emitter.prototype.addEventListener = function (event, fn) {
      this._callbacks = this._callbacks || {};
      (this._callbacks[event] = this._callbacks[event] || [])
      .push(fn);
      return this;
    };

  /**
   * Adds an `event` listener that will be invoked a single
   * time then automatically removed.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */

  Emitter.prototype.once = function (event, fn) {
    var self = this;
    this._callbacks = this._callbacks || {};

    function on() {
      self.off(event, on);
      fn.apply(this, arguments);
    }

    on.fn = fn;
    this.on(event, on);
    return this;
  };

  /**
   * Remove the given callback for `event` or all
   * registered callbacks.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */

  Emitter.prototype.off =
    Emitter.prototype.removeListener =
    Emitter.prototype.removeAllListeners =
    Emitter.prototype.removeEventListener = function (event, fn) {
      this._callbacks = this._callbacks || {};

      // all
      if (0 == arguments.length) {
        this._callbacks = {};
        return this;
      }

      // specific event
      var callbacks = this._callbacks[event];
      if (!callbacks) return this;

      // remove all handlers
      if (1 == arguments.length) {
        delete this._callbacks[event];
        return this;
      }

      // remove specific handler
      var cb;
      for (var i = 0; i < callbacks.length; i++) {
        cb = callbacks[i];
        if (cb === fn || cb.fn === fn) {
          callbacks.splice(i, 1);
          break;
        }
      }
      return this;
    };

  /**
   * Emit `event` with the given args.
   *
   * @param {String} event
   * @param {Mixed} ...
   * @return {Emitter}
   */

  Emitter.prototype.emit = function (event) {
    this._callbacks = this._callbacks || {};
    var args = [].slice.call(arguments, 1),
      callbacks = this._callbacks[event];

    if (callbacks) {
      callbacks = callbacks.slice(0);
      for (var i = 0, len = callbacks.length; i < len; ++i) {
        callbacks[i].apply(this, args);
      }
    }

    return this;
  };

  /**
   * Return array of callbacks for `event`.
   *
   * @param {String} event
   * @return {Array}
   * @api public
   */

  Emitter.prototype.listeners = function (event) {
    this._callbacks = this._callbacks || {};
    return this._callbacks[event] || [];
  };

  /**
   * Check if this emitter has `event` handlers.
   *
   * @param {String} event
   * @return {Boolean}
   * @api public
   */

  Emitter.prototype.hasListeners = function (event) {
    return !!this.listeners(event).length;
  };

  if (typeof (window) != "undefined") {
    window.EventEmitter = Emitter;
  }

})();

(function (exports, ByteArray, global) {
  var Protocol = exports;

  var PKG_HEAD_BYTES = 4;
  var MSG_FLAG_BYTES = 1;
  var MSG_ROUTE_CODE_BYTES = 2;
  var MSG_ID_MAX_BYTES = 5;
  var MSG_ROUTE_LEN_BYTES = 1;

  var MSG_ROUTE_CODE_MAX = 0xffff;

  var MSG_COMPRESS_ROUTE_MASK = 0x1;
  var MSG_TYPE_MASK = 0x7;

  var Package = Protocol.Package = {};
  var Message = Protocol.Message = {};

  Package.TYPE_HANDSHAKE = 1;
  Package.TYPE_HANDSHAKE_ACK = 2;
  Package.TYPE_HEARTBEAT = 3;
  Package.TYPE_DATA = 4;
  Package.TYPE_KICK = 5;

  Message.TYPE_REQUEST = 0;
  Message.TYPE_NOTIFY = 1;
  Message.TYPE_RESPONSE = 2;
  Message.TYPE_PUSH = 3;

  /**
   * pomele client encode
   * id message id;
   * route message route
   * msg message body
   * socketio current support string
   */
  Protocol.strencode = function (str) {
    var byteArray = new ByteArray(str.length * 3);
    var offset = 0;
    for (var i = 0; i < str.length; i++) {
      var charCode = str.charCodeAt(i);
      var codes = null;
      if (charCode <= 0x7f) {
        codes = [charCode];
      } else if (charCode <= 0x7ff) {
        codes = [0xc0 | (charCode >> 6), 0x80 | (charCode & 0x3f)];
      } else {
        codes = [0xe0 | (charCode >> 12), 0x80 | ((charCode & 0xfc0) >> 6), 0x80 | (charCode & 0x3f)];
      }
      for (var j = 0; j < codes.length; j++) {
        byteArray[offset] = codes[j];
        ++offset;
      }
    }
    var _buffer = new ByteArray(offset);
    copyArray(_buffer, 0, byteArray, 0, offset);
    return _buffer;
  };

  /**
   * client decode
   * msg String data
   * return Message Object
   */
  Protocol.strdecode = function (buffer) {
    var bytes = new ByteArray(buffer);
    var array = [];
    var offset = 0;
    var charCode = 0;
    var end = bytes.length;
    while (offset < end) {
      if (bytes[offset] < 128) {
        charCode = bytes[offset];
        offset += 1;
      } else if (bytes[offset] < 224) {
        charCode = ((bytes[offset] & 0x3f) << 6) + (bytes[offset + 1] & 0x3f);
        offset += 2;
      } else {
        charCode = ((bytes[offset] & 0x0f) << 12) + ((bytes[offset + 1] & 0x3f) << 6) + (bytes[offset + 2] & 0x3f);
        offset += 3;
      }
      array.push(charCode);
    }
    return String.fromCharCode.apply(null, array);
  };

  /**
   * Package protocol encode.
   *
   * Pomelo package format:
   * +------+-------------+------------------+
   * | type | body length |       body       |
   * +------+-------------+------------------+
   *
   * Head: 4bytes
   *   0: package type,
   *      1 - handshake,
   *      2 - handshake ack,
   *      3 - heartbeat,
   *      4 - data
   *      5 - kick
   *   1 - 3: big-endian body length
   * Body: body length bytes
   *
   * @param  {Number}    type   package type
   * @param  {ByteArray} body   body content in bytes
   * @return {ByteArray}        new byte array that contains encode result
   */
  Package.encode = function (type, body) {
    var length = body ? body.length : 0;
    var buffer = new ByteArray(PKG_HEAD_BYTES + length);
    var index = 0;
    buffer[index++] = type & 0xff;
    buffer[index++] = (length >> 16) & 0xff;
    buffer[index++] = (length >> 8) & 0xff;
    buffer[index++] = length & 0xff;
    if (body) {
      copyArray(buffer, index, body, 0, length);
    }
    return buffer;
  };

  /**
   * Package protocol decode.
   * See encode for package format.
   *
   * @param  {ByteArray} buffer byte array containing package content
   * @return {Object}           {type: package type, buffer: body byte array}
   */
  Package.decode = function (buffer) {
    var offset = 0;
    var bytes = new ByteArray(buffer);
    var length = 0;
    var rs = [];
    while (offset < bytes.length) {
      var type = bytes[offset++];
      length = ((bytes[offset++]) << 16 | (bytes[offset++]) << 8 | bytes[offset++]) >>> 0;
      var body = length ? new ByteArray(length) : null;
      copyArray(body, 0, bytes, offset, length);
      offset += length;
      rs.push({
        'type': type,
        'body': body
      });
    }
    return rs.length === 1 ? rs[0] : rs;
  };

  /**
   * Message protocol encode.
   *
   * @param  {Number} id            message id
   * @param  {Number} type          message type
   * @param  {Number} compressRoute whether compress route
   * @param  {Number|String} route  route code or route string
   * @param  {Buffer} msg           message body bytes
   * @return {Buffer}               encode result
   */
  Message.encode = function (id, type, compressRoute, route, msg) {
    // caculate message max length
    var idBytes = msgHasId(type) ? caculateMsgIdBytes(id) : 0;
    var msgLen = MSG_FLAG_BYTES + idBytes;

    if (msgHasRoute(type)) {
      if (compressRoute) {
        if (typeof route !== 'number') {
          throw new Error('error flag for number route!');
        }
        msgLen += MSG_ROUTE_CODE_BYTES;
      } else {
        msgLen += MSG_ROUTE_LEN_BYTES;
        if (route) {
          route = Protocol.strencode(route);
          if (route.length > 255) {
            throw new Error('route maxlength is overflow');
          }
          msgLen += route.length;
        }
      }
    }

    if (msg) {
      msgLen += msg.length;
    }

    var buffer = new ByteArray(msgLen);
    var offset = 0;

    // add flag
    offset = encodeMsgFlag(type, compressRoute, buffer, offset);

    // add message id
    if (msgHasId(type)) {
      offset = encodeMsgId(id, buffer, offset);
    }

    // add route
    if (msgHasRoute(type)) {
      offset = encodeMsgRoute(compressRoute, route, buffer, offset);
    }

    // add body
    if (msg) {
      offset = encodeMsgBody(msg, buffer, offset);
    }

    return buffer;
  };

  /**
   * Message protocol decode.
   *
   * @param  {Buffer|Uint8Array} buffer message bytes
   * @return {Object}            message object
   */
  Message.decode = function (buffer) {
    var bytes = new ByteArray(buffer);
    var bytesLen = bytes.length || bytes.byteLength;
    var offset = 0;
    var id = 0;
    var route = null;

    // parse flag
    var flag = bytes[offset++];
    var compressRoute = flag & MSG_COMPRESS_ROUTE_MASK;
    var type = (flag >> 1) & MSG_TYPE_MASK;

    // parse id
    if (msgHasId(type)) {
      var m = parseInt(bytes[offset]);
      var i = 0;
      do {
        var m = parseInt(bytes[offset]);
        id = id + ((m & 0x7f) * Math.pow(2, (7 * i)));
        offset++;
        i++;
      } while (m >= 128);
    }

    // parse route
    if (msgHasRoute(type)) {
      if (compressRoute) {
        route = (bytes[offset++]) << 8 | bytes[offset++];
      } else {
        var routeLen = bytes[offset++];
        if (routeLen) {
          route = new ByteArray(routeLen);
          copyArray(route, 0, bytes, offset, routeLen);
          route = Protocol.strdecode(route);
        } else {
          route = '';
        }
        offset += routeLen;
      }
    }

    // parse body
    var bodyLen = bytesLen - offset;
    var body = new ByteArray(bodyLen);

    copyArray(body, 0, bytes, offset, bodyLen);

    return {
      'id': id,
      'type': type,
      'compressRoute': compressRoute,
      'route': route,
      'body': body
    };
  };

  var copyArray = function (dest, doffset, src, soffset, length) {
    if ('function' === typeof src.copy) {
      // Buffer
      src.copy(dest, doffset, soffset, soffset + length);
    } else {
      // Uint8Array
      for (var index = 0; index < length; index++) {
        dest[doffset++] = src[soffset++];
      }
    }
  };

  var msgHasId = function (type) {
    return type === Message.TYPE_REQUEST || type === Message.TYPE_RESPONSE;
  };

  var msgHasRoute = function (type) {
    return type === Message.TYPE_REQUEST || type === Message.TYPE_NOTIFY ||
      type === Message.TYPE_PUSH;
  };

  var caculateMsgIdBytes = function (id) {
    var len = 0;
    do {
      len += 1;
      id >>= 7;
    } while (id > 0);
    return len;
  };

  var encodeMsgFlag = function (type, compressRoute, buffer, offset) {
    if (type !== Message.TYPE_REQUEST && type !== Message.TYPE_NOTIFY &&
      type !== Message.TYPE_RESPONSE && type !== Message.TYPE_PUSH) {
      throw new Error('unkonw message type: ' + type);
    }

    buffer[offset] = (type << 1) | (compressRoute ? 1 : 0);

    return offset + MSG_FLAG_BYTES;
  };

  var encodeMsgId = function (id, buffer, offset) {
    do {
      var tmp = id % 128;
      var next = Math.floor(id / 128);

      if (next !== 0) {
        tmp = tmp + 128;
      }
      buffer[offset++] = tmp;

      id = next;
    } while (id !== 0);

    return offset;
  };

  var encodeMsgRoute = function (compressRoute, route, buffer, offset) {
    if (compressRoute) {
      if (route > MSG_ROUTE_CODE_MAX) {
        throw new Error('route number is overflow');
      }

      buffer[offset++] = (route >> 8) & 0xff;
      buffer[offset++] = route & 0xff;
    } else {
      if (route) {
        buffer[offset++] = route.length & 0xff;
        copyArray(buffer, offset, route, 0, route.length);
        offset += route.length;
      } else {
        buffer[offset++] = 0;
      }
    }

    return offset;
  };

  var encodeMsgBody = function (msg, buffer, offset) {
    copyArray(buffer, offset, msg, 0, msg.length);
    return offset + msg.length;
  };

  // module.exports = Protocol;
  if (typeof (window) != "undefined") {
    window.Protocol = Protocol;
  }
})(typeof (window) == "undefined" ? module.exports : ({}), typeof (window) == "undefined" ? Buffer : Uint8Array, this);

/* ProtocolBuffer client 0.1.0*/

/**
 * pomelo-protobuf
 * @author <zhang0935@gmail.com>
 */

/**
 * Protocol buffer root
 * In browser, it will be window.protbuf
 */
(function (exports, global) {
  var Protobuf = exports;

  Protobuf.init = function (opts) {
    //On the serverside, use serverProtos to encode messages send to client
    Protobuf.encoder.init(opts.encoderProtos);

    //On the serverside, user clientProtos to decode messages receive from clients
    Protobuf.decoder.init(opts.decoderProtos);
  };

  Protobuf.encode = function (key, msg) {
    return Protobuf.encoder.encode(key, msg);
  };

  Protobuf.decode = function (key, msg) {
    return Protobuf.decoder.decode(key, msg);
  };

  // exports to support for components
  // module.exports = Protobuf;
  if (typeof (window) != "undefined") {
    window.protobuf = Protobuf;
  }

})(typeof (window) == "undefined" ? module.exports : ({}), this);

/**
 * constants
 */
(function (exports, global) {
  var constants = exports.constants = {};

  constants.TYPES = {
    uInt32: 0,
    sInt32: 0,
    int32: 0,
    double: 1,
    string: 2,
    message: 2,
    float: 5
  };

})('undefined' !== typeof protobuf ? protobuf : module.exports, this);

/**
 * util module
 */
(function (exports, global) {

  var Util = exports.util = {};

  Util.isSimpleType = function (type) {
    return (type === 'uInt32' ||
      type === 'sInt32' ||
      type === 'int32' ||
      type === 'uInt64' ||
      type === 'sInt64' ||
      type === 'float' ||
      type === 'double');
  };

})('undefined' !== typeof protobuf ? protobuf : module.exports, this);

/**
 * codec module
 */
(function (exports, global) {

  var Codec = exports.codec = {};

  var buffer = new ArrayBuffer(8);
  var float32Array = new Float32Array(buffer);
  var float64Array = new Float64Array(buffer);
  var uInt8Array = new Uint8Array(buffer);

  Codec.encodeUInt32 = function (n) {
    var n = parseInt(n);
    if (isNaN(n) || n < 0) {
      return null;
    }

    var result = [];
    do {
      var tmp = n % 128;
      var next = Math.floor(n / 128);

      if (next !== 0) {
        tmp = tmp + 128;
      }
      result.push(tmp);
      n = next;
    } while (n !== 0);

    return result;
  };

  Codec.encodeSInt32 = function (n) {
    var n = parseInt(n);
    if (isNaN(n)) {
      return null;
    }
    n = n < 0 ? (Math.abs(n) * 2 - 1) : n * 2;

    return Codec.encodeUInt32(n);
  };

  Codec.decodeUInt32 = function (bytes) {
    var n = 0;

    for (var i = 0; i < bytes.length; i++) {
      var m = parseInt(bytes[i]);
      n = n + ((m & 0x7f) * Math.pow(2, (7 * i)));
      if (m < 128) {
        return n;
      }
    }

    return n;
  };

  Codec.decodeSInt32 = function (bytes) {
    var n = this.decodeUInt32(bytes);
    var flag = ((n % 2) === 1) ? -1 : 1;

    n = ((n % 2 + n) / 2) * flag;

    return n;
  };

  Codec.encodeFloat = function (float) {
    float32Array[0] = float;
    return uInt8Array;
  };

  Codec.decodeFloat = function (bytes, offset) {
    if (!bytes || bytes.length < (offset + 4)) {
      return null;
    }

    for (var i = 0; i < 4; i++) {
      uInt8Array[i] = bytes[offset + i];
    }

    return float32Array[0];
  };

  Codec.encodeDouble = function (double) {
    float64Array[0] = double;
    return uInt8Array.subarray(0, 8);
  };

  Codec.decodeDouble = function (bytes, offset) {
    if (!bytes || bytes.length < (offset + 8)) {
      return null;
    }

    for (var i = 0; i < 8; i++) {
      uInt8Array[i] = bytes[offset + i];
    }

    return float64Array[0];
  };

  Codec.encodeStr = function (bytes, offset, str) {
    for (var i = 0; i < str.length; i++) {
      var code = str.charCodeAt(i);
      var codes = encode2UTF8(code);

      for (var j = 0; j < codes.length; j++) {
        bytes[offset] = codes[j];
        offset++;
      }
    }

    return offset;
  };

  /**
   * Decode string from utf8 bytes
   */
  Codec.decodeStr = function (bytes, offset, length) {
    var array = [];
    var end = offset + length;

    while (offset < end) {
      var code = 0;

      if (bytes[offset] < 128) {
        code = bytes[offset];

        offset += 1;
      } else if (bytes[offset] < 224) {
        code = ((bytes[offset] & 0x3f) << 6) + (bytes[offset + 1] & 0x3f);
        offset += 2;
      } else {
        code = ((bytes[offset] & 0x0f) << 12) + ((bytes[offset + 1] & 0x3f) << 6) + (bytes[offset + 2] & 0x3f);
        offset += 3;
      }

      array.push(code);

    }

    var str = '';
    for (var i = 0; i < array.length;) {
      str += String.fromCharCode.apply(null, array.slice(i, i + 10000));
      i += 10000;
    }

    return str;
  };

  /**
   * Return the byte length of the str use utf8
   */
  Codec.byteLength = function (str) {
    if (typeof (str) !== 'string') {
      return -1;
    }

    var length = 0;

    for (var i = 0; i < str.length; i++) {
      var code = str.charCodeAt(i);
      length += codeLength(code);
    }

    return length;
  };

  /**
   * Encode a unicode16 char code to utf8 bytes
   */
  function encode2UTF8(charCode) {
    if (charCode <= 0x7f) {
      return [charCode];
    } else if (charCode <= 0x7ff) {
      return [0xc0 | (charCode >> 6), 0x80 | (charCode & 0x3f)];
    } else {
      return [0xe0 | (charCode >> 12), 0x80 | ((charCode & 0xfc0) >> 6), 0x80 | (charCode & 0x3f)];
    }
  }

  function codeLength(code) {
    if (code <= 0x7f) {
      return 1;
    } else if (code <= 0x7ff) {
      return 2;
    } else {
      return 3;
    }
  }
})('undefined' !== typeof protobuf ? protobuf : module.exports, this);

/**
 * encoder module
 */
(function (exports, global) {

  var protobuf = exports;
  var MsgEncoder = exports.encoder = {};

  var codec = protobuf.codec;
  var constant = protobuf.constants;
  var util = protobuf.util;

  MsgEncoder.init = function (protos) {
    this.protos = protos || {};
  };

  MsgEncoder.encode = function (route, msg) {
    //Get protos from protos map use the route as key
    var protos = this.protos[route];

    //Check msg
    if (!checkMsg(msg, protos)) {
      return null;
    }

    //Set the length of the buffer 2 times bigger to prevent overflow
    var length = codec.byteLength(JSON.stringify(msg));

    //Init buffer and offset
    var buffer = new ArrayBuffer(length);
    var uInt8Array = new Uint8Array(buffer);
    var offset = 0;

    if (!!protos) {
      offset = encodeMsg(uInt8Array, offset, protos, msg);
      if (offset > 0) {
        return uInt8Array.subarray(0, offset);
      }
    }

    return null;
  };

  /**
   * Check if the msg follow the defination in the protos
   */
  function checkMsg(msg, protos) {
    if (!protos) {
      return false;
    }

    for (var name in protos) {
      var proto = protos[name];

      //All required element must exist
      switch (proto.option) {
        case 'required':
          if (typeof (msg[name]) === 'undefined') {
            console.warn('no property exist for required! name: %j, proto: %j, msg: %j', name, proto, msg);
            return false;
          }
        case 'optional':
          if (typeof (msg[name]) !== 'undefined') {
            var message = protos.__messages[proto.type] || MsgEncoder.protos['message ' + proto.type];
            if (!!message && !checkMsg(msg[name], message)) {
              console.warn('inner proto error! name: %j, proto: %j, msg: %j', name, proto, msg);
              return false;
            }
          }
          break;
        case 'repeated':
          //Check nest message in repeated elements
          var message = protos.__messages[proto.type] || MsgEncoder.protos['message ' + proto.type];
          if (!!msg[name] && !!message) {
            for (var i = 0; i < msg[name].length; i++) {
              if (!checkMsg(msg[name][i], message)) {
                return false;
              }
            }
          }
          break;
      }
    }

    return true;
  }

  function encodeMsg(buffer, offset, protos, msg) {
    for (var name in msg) {
      if (!!protos[name]) {
        var proto = protos[name];

        switch (proto.option) {
          case 'required':
          case 'optional':
            offset = writeBytes(buffer, offset, encodeTag(proto.type, proto.tag));
            offset = encodeProp(msg[name], proto.type, offset, buffer, protos);
            break;
          case 'repeated':
            if (msg[name].length > 0) {
              offset = encodeArray(msg[name], proto, offset, buffer, protos);
            }
            break;
        }
      }
    }

    return offset;
  }

  function encodeProp(value, type, offset, buffer, protos) {
    switch (type) {
      case 'uInt32':
        offset = writeBytes(buffer, offset, codec.encodeUInt32(value));
        break;
      case 'int32':
      case 'sInt32':
        offset = writeBytes(buffer, offset, codec.encodeSInt32(value));
        break;
      case 'float':
        writeBytes(buffer, offset, codec.encodeFloat(value));
        offset += 4;
        break;
      case 'double':
        writeBytes(buffer, offset, codec.encodeDouble(value));
        offset += 8;
        break;
      case 'string':
        var length = codec.byteLength(value);

        //Encode length
        offset = writeBytes(buffer, offset, codec.encodeUInt32(length));
        //write string
        codec.encodeStr(buffer, offset, value);
        offset += length;
        break;
      default:
        var message = protos.__messages[type] || MsgEncoder.protos['message ' + type];
        if (!!message) {
          //Use a tmp buffer to build an internal msg
          var tmpBuffer = new ArrayBuffer(codec.byteLength(JSON.stringify(value)) * 2);
          var length = 0;

          length = encodeMsg(tmpBuffer, length, message, value);
          //Encode length
          offset = writeBytes(buffer, offset, codec.encodeUInt32(length));
          //contact the object
          for (var i = 0; i < length; i++) {
            buffer[offset] = tmpBuffer[i];
            offset++;
          }
        }
        break;
    }

    return offset;
  }

  /**
   * Encode reapeated properties, simple msg and object are decode differented
   */
  function encodeArray(array, proto, offset, buffer, protos) {
    var i = 0;

    if (util.isSimpleType(proto.type)) {
      offset = writeBytes(buffer, offset, encodeTag(proto.type, proto.tag));
      offset = writeBytes(buffer, offset, codec.encodeUInt32(array.length));
      for (i = 0; i < array.length; i++) {
        offset = encodeProp(array[i], proto.type, offset, buffer);
      }
    } else {
      for (i = 0; i < array.length; i++) {
        offset = writeBytes(buffer, offset, encodeTag(proto.type, proto.tag));
        offset = encodeProp(array[i], proto.type, offset, buffer, protos);
      }
    }

    return offset;
  }

  function writeBytes(buffer, offset, bytes) {
    for (var i = 0; i < bytes.length; i++, offset++) {
      buffer[offset] = bytes[i];
    }

    return offset;
  }

  function encodeTag(type, tag) {
    var value = constant.TYPES[type] || 2;

    return codec.encodeUInt32((tag << 3) | value);
  }
})('undefined' !== typeof protobuf ? protobuf : module.exports, this);

/**
 * decoder module
 */
(function (exports, global) {
  var protobuf = exports;
  var MsgDecoder = exports.decoder = {};

  var codec = protobuf.codec;
  var util = protobuf.util;

  var buffer;
  var offset = 0;

  MsgDecoder.init = function (protos) {
    this.protos = protos || {};
  };

  MsgDecoder.setProtos = function (protos) {
    if (!!protos) {
      this.protos = protos;
    }
  };

  MsgDecoder.decode = function (route, buf) {
    var protos = this.protos[route];

    buffer = buf;
    offset = 0;

    if (!!protos) {
      return decodeMsg({}, protos, buffer.length);
    }

    return null;
  };

  function decodeMsg(msg, protos, length) {
    while (offset < length) {
      var head = getHead();
      var type = head.type;
      var tag = head.tag;
      var name = protos.__tags[tag];

      switch (protos[name].option) {
        case 'optional':
        case 'required':
          msg[name] = decodeProp(protos[name].type, protos);
          break;
        case 'repeated':
          if (!msg[name]) {
            msg[name] = [];
          }
          decodeArray(msg[name], protos[name].type, protos);
          break;
      }
    }

    return msg;
  }

  /**
   * Test if the given msg is finished
   */
  function isFinish(msg, protos) {
    return (!protos.__tags[peekHead().tag]);
  }
  /**
   * Get property head from protobuf
   */
  function getHead() {
    var tag = codec.decodeUInt32(getBytes());

    return {
      type: tag & 0x7,
      tag: tag >> 3
    };
  }

  /**
   * Get tag head without move the offset
   */
  function peekHead() {
    var tag = codec.decodeUInt32(peekBytes());

    return {
      type: tag & 0x7,
      tag: tag >> 3
    };
  }

  function decodeProp(type, protos) {
    switch (type) {
      case 'uInt32':
        return codec.decodeUInt32(getBytes());
      case 'int32':
      case 'sInt32':
        return codec.decodeSInt32(getBytes());
      case 'float':
        var float = codec.decodeFloat(buffer, offset);
        offset += 4;
        return float;
      case 'double':
        var double = codec.decodeDouble(buffer, offset);
        offset += 8;
        return double;
      case 'string':
        var length = codec.decodeUInt32(getBytes());

        var str = codec.decodeStr(buffer, offset, length);
        offset += length;

        return str;
      default:
        var message = protos && (protos.__messages[type] || MsgDecoder.protos['message ' + type]);
        if (!!message) {
          var length = codec.decodeUInt32(getBytes());
          var msg = {};
          decodeMsg(msg, message, offset + length);
          return msg;
        }
        break;
    }
  }

  function decodeArray(array, type, protos) {
    if (util.isSimpleType(type)) {
      var length = codec.decodeUInt32(getBytes());

      for (var i = 0; i < length; i++) {
        array.push(decodeProp(type));
      }
    } else {
      array.push(decodeProp(type, protos));
    }
  }

  function getBytes(flag) {
    var bytes = [];
    var pos = offset;
    flag = flag || false;

    var b;

    do {
      b = buffer[pos];
      bytes.push(b);
      pos++;
    } while (b >= 128);

    if (!flag) {
      offset = pos;
    }
    return bytes;
  }

  function peekBytes() {
    return getBytes(true);
  }

})('undefined' !== typeof protobuf ? protobuf : module.exports, this);

cc.Pomelo = function () {
  var JS_WS_CLIENT_TYPE = 'js-websocket';
  var JS_WS_CLIENT_VERSION = '0.0.1';

  var Protocol = window.Protocol;
  var protobuf = window.protobuf;
  var decodeIO_protobuf = window.decodeIO_protobuf;
  var decodeIO_encoder = null;
  var decodeIO_decoder = null;
  var Package = Protocol.Package;
  var Message = Protocol.Message;
  var EventEmitter = window.EventEmitter;
  var rsa = window.rsa;
  var disconnectCb = null;

  if (typeof (window) != "undefined" && typeof (sys) != 'undefined' && sys.localStorage) {
    window.localStorage = sys.localStorage;
  }

  var RES_OK = 200;
  var RES_FAIL = 500;
  var RES_OLD_CLIENT = 501;

  if (typeof Object.create !== 'function') {
    Object.create = function (o) {
      function F() {}
      F.prototype = o;
      return new F();
    };
  }

  var root = window;
  var pomelo = Object.create(EventEmitter.prototype); // object extend from object
  // root.pomelo = pomelo;
  var socket = null;
  var reqId = 0;
  var callbacks = {};
  var handlers = {};
  //Map from request id to route
  var routeMap = {};
  var dict = {}; // route string to code
  var abbrs = {}; // code to route string
  var serverProtos = {};
  var clientProtos = {};
  var protoVersion = 0;

  var heartbeatInterval = 0;
  var heartbeatTimeout = 0;
  var nextHeartbeatTimeout = 0;
  var gapThreshold = 100; // heartbeat gap threashold
  var heartbeatId = null;
  var heartbeatTimeoutId = null;
  var handshakeCallback = null;

  var decode = null;
  var encode = null;

  var reconnect = false;
  var reconncetTimer = null;
  var reconnectUrl = null;
  var reconnectAttempts = 0;
  var reconnectionDelay = 5000;
  var DEFAULT_MAX_RECONNECT_ATTEMPTS = 10;

  var useCrypto;

  var handshakeBuffer = {
    'sys': {
      type: JS_WS_CLIENT_TYPE,
      version: JS_WS_CLIENT_VERSION,
      rsa: {}
    },
    'user': {}
  };

  var initCallback = null;

  pomelo.init = function (params, cb) {
    initCallback = cb;
    var host = params.host;
    var port = params.port;

    encode = params.encode || defaultEncode;
    decode = params.decode || defaultDecode;

    var url = 'ws://' + host;
    if (port) {
      url += ':' + port;
    }

    handshakeBuffer.user = params.user;
    if (params.encrypt) {
      useCrypto = true;
      rsa.generate(1024, "10001");
      var data = {
        rsa_n: rsa.n.toString(16),
        rsa_e: rsa.e
      }
      handshakeBuffer.sys.rsa = data;
    }
    handshakeCallback = params.handshakeCallback;
    connect(params, url, cb);
  };

  var defaultDecode = pomelo.decode = function (data) {
    //probuff decode
    var msg = Message.decode(data);

    if (msg.id > 0) {
      msg.route = routeMap[msg.id];
      delete routeMap[msg.id];
      if (!msg.route) {
        return;
      }
    }

    msg.body = deCompose(msg);
    return msg;
  };

  var defaultEncode = pomelo.encode = function (reqId, route, msg) {
    var type = reqId ? Message.TYPE_REQUEST : Message.TYPE_NOTIFY;

    //compress message by protobuf
    if (protobuf && clientProtos[route]) {
      msg = protobuf.encode(route, msg);
    } else if (decodeIO_encoder && decodeIO_encoder.lookup(route)) {
      var Builder = decodeIO_encoder.build(route);
      msg = new Builder(msg).encodeNB();
    } else {
      msg = Protocol.strencode(JSON.stringify(msg));
    }

    var compressRoute = 0;
    if (dict && dict[route]) {
      route = dict[route];
      compressRoute = 1;
    }

    return Message.encode(reqId, type, compressRoute, route, msg);
  };

  var connect = function (params, url, cb) {
    console.log('connect to ' + url);

    var params = params || {};
    var maxReconnectAttempts = params.maxReconnectAttempts || DEFAULT_MAX_RECONNECT_ATTEMPTS;
    reconnectUrl = url;
    //Add protobuf version
    if (window.localStorage && window.localStorage.getItem('protos') && protoVersion === 0) {
      var protos = JSON.parse(window.localStorage.getItem('protos'));

      protoVersion = protos.version || 0;
      serverProtos = protos.server || {};
      clientProtos = protos.client || {};

      if (!!protobuf) {
        protobuf.init({
          encoderProtos: clientProtos,
          decoderProtos: serverProtos
        });
      }
      if (!!decodeIO_protobuf) {
        decodeIO_encoder = decodeIO_protobuf.loadJson(clientProtos);
        decodeIO_decoder = decodeIO_protobuf.loadJson(serverProtos);
      }
    }
    //Set protoversion
    handshakeBuffer.sys.protoVersion = protoVersion;

    var onopen = function (event) {
      if (!!reconnect) {
        pomelo.emit('reconnect');
      }
      reset();
      var obj = Package.encode(Package.TYPE_HANDSHAKE, Protocol.strencode(JSON.stringify(handshakeBuffer)));
      send(obj);
    };
    var onmessage = function (event) {
      processPackage(Package.decode(event.data), cb);
      // new package arrived, update the heartbeat timeout
      if (heartbeatTimeout) {
        nextHeartbeatTimeout = Date.now() + heartbeatTimeout;
      }
    };
    var onerror = function (event) {
      pomelo.emit('io-error', event);
      console.error('socket error: ', event);
    };
    var onclose = function (event) {
      pomelo.emit('close', event);
      pomelo.emit('disconnect', event);
      console.log('socket close: ', event);
      if (!!params.reconnect && reconnectAttempts < maxReconnectAttempts) {
        reconnect = true;
        reconnectAttempts++;
        reconncetTimer = setTimeout(function () {
          connect(params, reconnectUrl, cb);
        }, reconnectionDelay);
        reconnectionDelay *= 2;
      }
      socket = null;
      disconnectCb && disconnectCb();
      disconnectCb = null;
    };
    socket = new WebSocket(url);
    socket.binaryType = 'arraybuffer';
    socket.onopen = onopen;
    socket.onmessage = onmessage;
    socket.onerror = onerror;
    socket.onclose = onclose;
  };

  pomelo.disconnect = function (cb) {
    disconnectCb = cb;
    if (socket) {
      if (socket.disconnect) socket.disconnect();
      if (socket.close) socket.close();
      console.log('disconnect');
      socket = null;
    }

    if (heartbeatId) {
      clearTimeout(heartbeatId);
      heartbeatId = null;
    }
    if (heartbeatTimeoutId) {
      clearTimeout(heartbeatTimeoutId);
      heartbeatTimeoutId = null;
    }
  };

  var reset = function () {
    reconnect = false;
    reconnectionDelay = 1000 * 5;
    reconnectAttempts = 0;
    clearTimeout(reconncetTimer);
  };

  pomelo.request = function (route, msg, cb) {
    if (arguments.length === 2 && typeof msg === 'function') {
      cb = msg;
      msg = {};
    } else {
      msg = msg || {};
    }
    route = route || msg.route;
    if (!route) {
      return;
    }

    reqId++;
    sendMessage(reqId, route, msg);

    callbacks[reqId] = cb;
    routeMap[reqId] = route;
  };

  pomelo.notify = function (route, msg) {
    msg = msg || {};
    sendMessage(0, route, msg);
  };

  var sendMessage = function (reqId, route, msg) {
    if (useCrypto) {
      msg = JSON.stringify(msg);
      var sig = rsa.signString(msg, "sha256");
      msg = JSON.parse(msg);
      msg['__crypto__'] = sig;
    }

    if (encode) {
      msg = encode(reqId, route, msg);
    }

    var packet = Package.encode(Package.TYPE_DATA, msg);
    send(packet);
  };

  var send = function (packet) {
    if (socket !== null) {
      socket.send(packet.buffer);
    }
  };

  var handler = {};

  var heartbeat = function (data) {
    if (!heartbeatInterval) {
      // no heartbeat
      return;
    }

    var obj = Package.encode(Package.TYPE_HEARTBEAT);
    if (heartbeatTimeoutId) {
      clearTimeout(heartbeatTimeoutId);
      heartbeatTimeoutId = null;
    }

    if (heartbeatId) {
      // already in a heartbeat interval
      return;
    }
    heartbeatId = setTimeout(function () {
      heartbeatId = null;
      send(obj);

      nextHeartbeatTimeout = Date.now() + heartbeatTimeout;
      heartbeatTimeoutId = setTimeout(heartbeatTimeoutCb, heartbeatTimeout);
    }, heartbeatInterval);
  };

  var heartbeatTimeoutCb = function () {
    var gap = nextHeartbeatTimeout - Date.now();
    if (gap > gapThreshold) {
      heartbeatTimeoutId = setTimeout(heartbeatTimeoutCb, gap);
    } else {
      console.error('server heartbeat timeout');
      pomelo.emit('heartbeat timeout');
      pomelo.disconnect();
    }
  };

  var handshake = function (data) {
    data = JSON.parse(Protocol.strdecode(data));
    if (data.code === RES_OLD_CLIENT) {
      pomelo.emit('error', 'client version not fullfill');
      return;
    }

    if (data.code !== RES_OK) {
      pomelo.emit('error', 'handshake fail');
      return;
    }

    handshakeInit(data);

    var obj = Package.encode(Package.TYPE_HANDSHAKE_ACK);
    send(obj);
    if (initCallback) {
      initCallback(socket);
    }
  };

  var onData = function (data) {
    var msg = data;
    if (decode) {
      msg = decode(msg);
    }
    processMessage(pomelo, msg);
  };

  var onKick = function (data) {
    data = JSON.parse(Protocol.strdecode(data));
    pomelo.emit('onKick', data);
  };

  handlers[Package.TYPE_HANDSHAKE] = handshake;
  handlers[Package.TYPE_HEARTBEAT] = heartbeat;
  handlers[Package.TYPE_DATA] = onData;
  handlers[Package.TYPE_KICK] = onKick;

  var processPackage = function (msgs) {
    if (Array.isArray(msgs)) {
      for (var i = 0; i < msgs.length; i++) {
        var msg = msgs[i];
        handlers[msg.type](msg.body);
      }
    } else {
      handlers[msgs.type](msgs.body);
    }
  };

  var processMessage = function (pomelo, msg) {
    if (!msg.id) {
      // server push message
      pomelo.emit(msg.route, msg.body);
      return;
    }

    //if have a id then find the callback function with the request
    var cb = callbacks[msg.id];

    delete callbacks[msg.id];
    if (typeof cb !== 'function') {
      return;
    }

    cb(msg.body);
    return;
  };

  var processMessageBatch = function (pomelo, msgs) {
    for (var i = 0, l = msgs.length; i < l; i++) {
      processMessage(pomelo, msgs[i]);
    }
  };

  var deCompose = function (msg) {
    var route = msg.route;

    //Decompose route from dict
    if (msg.compressRoute) {
      if (!abbrs[route]) {
        return {};
      }

      route = msg.route = abbrs[route];
    }
    if (protobuf && serverProtos[route]) {
      return protobuf.decode(route, msg.body);
    } else if (decodeIO_decoder && decodeIO_decoder.lookup(route)) {
      return decodeIO_decoder.build(route).decode(msg.body);
    } else {
      return JSON.parse(Protocol.strdecode(msg.body));
    }

    return msg;
  };

  var handshakeInit = function (data) {
    if (data.sys && data.sys.heartbeat) {
      heartbeatInterval = data.sys.heartbeat * 1000; // heartbeat interval
      heartbeatTimeout = heartbeatInterval * 2; // max heartbeat timeout
    } else {
      heartbeatInterval = 0;
      heartbeatTimeout = 0;
    }

    initData(data);

    if (typeof handshakeCallback === 'function') {
      handshakeCallback(data.user);
    }
  };

  //Initilize data used in pomelo client
  var initData = function (data) {
    if (!data || !data.sys) {
      return;
    }
    dict = data.sys.dict;
    var protos = data.sys.protos;

    //Init compress dict
    if (dict) {
      dict = dict;
      abbrs = {};

      for (var route in dict) {
        abbrs[dict[route]] = route;
      }
    }

    //Init protobuf protos
    if (protos) {
      protoVersion = protos.version || 0;
      serverProtos = protos.server || {};
      clientProtos = protos.client || {};

      //Save protobuf protos to localStorage
      window.localStorage.setItem('protos', JSON.stringify(protos));

      if (!!protobuf) {
        protobuf.init({
          encoderProtos: protos.client,
          decoderProtos: protos.server
        });
      }
      if (!!decodeIO_protobuf) {
        decodeIO_encoder = decodeIO_protobuf.loadJson(clientProtos);
        decodeIO_decoder = decodeIO_protobuf.loadJson(serverProtos);
      }
    }
  };
  return pomelo;
  // module.exports = pomelo;
};
window.pomelo = new cc.Pomelo();
// console.log('init pomelo', window.pomelo);