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(this._reconnectionDelay = t,this.backoff && this.backoff.setMin(t),this) : this._reconnectionDelay;},n.prototype.randomizationFactor = function(t) {return arguments.length ? (this._randomizationFactor = t,this.backoff && this.backoff.setJitter(t),this) : this._randomizationFactor;},n.prototype.reconnectionDelayMax = function(t) {return arguments.length ? (this._reconnectionDelayMax = t,this.backoff && this.backoff.setMax(t),this) : this._reconnectionDelayMax;},n.prototype.timeout = function(t) {return arguments.length ? (this._timeout = t,this) : this._timeout;},n.prototype.maybeReconnectOnOpen = function() {!this.reconnecting && this._reconnection && 0 === this.backoff.attempts && this.reconnect();},n.prototype.open = n.prototype.connect = function(t,e) {if (p('readyState %s',this.readyState),~this.readyState.indexOf('open')) return this;p('opening %s',this.uri),this.engine = i(this.uri,this.opts);const r = this.engine,n = this;this.readyState = 'opening',this.skipReconnect = !1;const o = u(r,'open',function() {n.onopen(),t && t();}),s = u(r,'error',function(e) {if (p('connect_error'),n.cleanup(),n.readyState = 'closed',n.emitAll('connect_error',e),t) {const r = new Error('Connection error');r.data = e,t(r);} else n.maybeReconnectOnOpen();});if (!1 !== this._timeout) {const a = this._timeout;p('connect attempt will timeout after %d',a);const c = setTimeout(function() {p('connect attempt timed out after %d',a),o.destroy(),r.close(),r.emit('error','timeout'),n.emitAll('connect_timeout',a);},a);this.subs.push({destroy:function() {clearTimeout(c);}});} return this.subs.push(o),this.subs.push(s),this;},n.prototype.onopen = function() {p('open'),this.cleanup(),this.readyState = 'open',this.emit('open');const t = this.engine;this.subs.push(u(t,'data',h(this,'ondata'))),this.subs.push(u(t,'ping',h(this,'onping'))),this.subs.push(u(t,'pong',h(this,'onpong'))),this.subs.push(u(t,'error',h(this,'onerror'))),this.subs.push(u(t,'close',h(this,'onclose'))),this.subs.push(u(this.decoder,'decoded',h(this,'ondecoded')));},n.prototype.onping = function() {this.lastPing = new Date,this.emitAll('ping');},n.prototype.onpong = function() {this.emitAll('pong',new Date - this.lastPing);},n.prototype.ondata = function(t) {this.decoder.add(t);},n.prototype.ondecoded = function(t) {this.emit('packet',t);},n.prototype.onerror = function(t) {p('error',t),this.emitAll('error',t);},n.prototype.socket = function(t,e) {function r() {~f(o.connecting,n) || o.connecting.push(n);} var n = this.nsps[t];if (!n) {n = new s(this,t,e),this.nsps[t] = n;var o = this;n.on('connecting',r),n.on('connect',function() {n.id = o.engine.id;}),this.autoConnect && r();} return n;},n.prototype.destroy = function(t) {const e = f(this.connecting,t);~e && this.connecting.splice(e,1),this.connecting.length || this.close();},n.prototype.packet = function(t) {p('writing packet %j',t);const e = this;t.query && 0 === t.type && (t.nsp += '?' + t.query),e.encoding ? e.packetBuffer.push(t) : (e.encoding = !0,this.encoder.encode(t,function(r) {for (let n = 0;n < r.length;n++)e.engine.write(r[n],t.options);e.encoding = !1,e.processPacketQueue();}));},n.prototype.processPacketQueue = function() {if (this.packetBuffer.length > 0 && !this.encoding) {const t = this.packetBuffer.shift();this.packet(t);}},n.prototype.cleanup = function() {p('cleanup');for (let t = this.subs.length,e = 0;e < t;e++) {const r = this.subs.shift();r.destroy();} this.packetBuffer = [],this.encoding = !1,this.lastPing = null,this.decoder.destroy();},n.prototype.close = n.prototype.disconnect = function() {p('disconnect'),this.skipReconnect = !0,this.reconnecting = !1,'opening' === this.readyState && this.cleanup(),this.backoff.reset(),this.readyState = 'closed',this.engine && this.engine.close();},n.prototype.onclose = function(t) {p('onclose'),this.cleanup(),this.backoff.reset(),this.readyState = 'closed',this.emit('close',t),this._reconnection && !this.skipReconnect && this.reconnect();},n.prototype.reconnect = function() {if (this.reconnecting || this.skipReconnect) return this;const t = this;if (this.backoff.attempts >= this._reconnectionAttempts)p('reconnect failed'),this.backoff.reset(),this.emitAll('reconnect_failed'),this.reconnecting = !1;else {const e = this.backoff.duration();p('will wait %dms before reconnect attempt',e),this.reconnecting = !0;const r = setTimeout(function() {t.skipReconnect || (p('attempting reconnect'),t.emitAll('reconnect_attempt',t.backoff.attempts),t.emitAll('reconnecting',t.backoff.attempts),t.skipReconnect || t.open(function(e) {e ? (p('reconnect attempt error'),t.reconnecting = !1,t.reconnect(),t.emitAll('reconnect_error',e.data)) : (p('reconnect success'),t.onreconnect());}));},e);this.subs.push({destroy:function() {clearTimeout(r);}});}},n.prototype.onreconnect = function() {const t = this.backoff.attempts;this.reconnecting = !1,this.backoff.reset(),this.updateSocketIds(),this.emitAll('reconnect',t);};},function(t,e,r) {t.exports = r(19);},function(t,e,r) {t.exports = r(20),t.exports.parser = r(27);},function(t,e,r) {(function(e) {function n(t,r) {if (!(this instanceof n)) return new n(t,r);r = r || {},t && 'object' == typeof t && (r = t,t = null),t ? (t = h(t),r.hostname = t.host,r.secure = 'https' === t.protocol || 'wss' === t.protocol,r.port = t.port,t.query && (r.query = t.query)) : r.host && (r.hostname = h(r.host).host),
this.secure = null != r.secure ? r.secure : e.location && 'https:' === location.protocol,r.hostname && !r.port && (r.port = this.secure ? '443' : '80'),this.agent = r.agent || !1,this.hostname = r.hostname || (e.location ? location.hostname : 'localhost'),this.port = r.port || (e.location && location.port ? location.port : this.secure ? 443 : 80),this.query = r.query || {},'string' == typeof this.query && (this.query = f.decode(this.query)),this.upgrade = !1 !== r.upgrade,this.path = (r.path || '/engine.io').replace(/\/$/,'') + '/',this.forceJSONP = !!r.forceJSONP,this.jsonp = !1 !== r.jsonp,this.forceBase64 = !!r.forceBase64,this.enablesXDR = !!r.enablesXDR,this.timestampParam = r.timestampParam || 't',this.timestampRequests = r.timestampRequests,this.transports = r.transports || ['polling','websocket'],this.readyState = '',this.writeBuffer = [],this.prevBufferLen = 0,this.policyPort = r.policyPort || 843,this.rememberUpgrade = r.rememberUpgrade || !1,this.binaryType = null,this.onlyBinaryUpgrades = r.onlyBinaryUpgrades,this.perMessageDeflate = !1 !== r.perMessageDeflate && (r.perMessageDeflate || {}),!0 === this.perMessageDeflate && (this.perMessageDeflate = {}),this.perMessageDeflate && null == this.perMessageDeflate.threshold && (this.perMessageDeflate.threshold = 1024),this.pfx = r.pfx || null,this.key = r.key || null,this.passphrase = r.passphrase || null,this.cert = r.cert || null,this.ca = r.ca || null,this.ciphers = r.ciphers || null,this.rejectUnauthorized = void 0 === r.rejectUnauthorized ? null : r.rejectUnauthorized,this.forceNode = !!r.forceNode;const o = 'object' == typeof e && e;o.global === o && (r.extraHeaders && Object.keys(r.extraHeaders).length > 0 && (this.extraHeaders = r.extraHeaders),r.localAddress && (this.localAddress = r.localAddress)),this.id = null,this.upgrades = null,this.pingInterval = null,this.pingTimeout = null,this.pingIntervalTimer = null,this.pingTimeoutTimer = null,this.open();} function o(t) {const e = {};for (const r in t)t.hasOwnProperty(r) && (e[r] = t[r]);return e;} var i = r(21),s = r(35),a = r(3)('engine.io-client:socket'),c = r(42),u = r(27),h = r(2),p = r(43),f = r(36);t.exports = n,n.priorWebsocketSuccess = !1,s(n.prototype),n.protocol = u.protocol,n.Socket = n,n.Transport = r(26),n.transports = r(21),n.parser = r(27),n.prototype.createTransport = function(t) {a('creating transport "%s"',t);const e = o(this.query);e.EIO = u.protocol,e.transport = t,this.id && (e.sid = this.id);const r = new i[t]({agent:this.agent,hostname:this.hostname,port:this.port,secure:this.secure,path:this.path,query:e,forceJSONP:this.forceJSONP,jsonp:this.jsonp,forceBase64:this.forceBase64,enablesXDR:this.enablesXDR,timestampRequests:this.timestampRequests,timestampParam:this.timestampParam,policyPort:this.policyPort,socket:this,pfx:this.pfx,key:this.key,passphrase:this.passphrase,cert:this.cert,ca:this.ca,ciphers:this.ciphers,rejectUnauthorized:this.rejectUnauthorized,perMessageDeflate:this.perMessageDeflate,extraHeaders:this.extraHeaders,forceNode:this.forceNode,localAddress:this.localAddress});return r;},n.prototype.open = function() {let t;if (this.rememberUpgrade && n.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1)t = 'websocket';else {if (0 === this.transports.length) {const e = this;return void setTimeout(function() {e.emit('error','No transports available');},0);}t = this.transports[0];} this.readyState = 'opening';try {t = this.createTransport(t);} catch (t) {return this.transports.shift(),void this.open();}t.open(),this.setTransport(t);},n.prototype.setTransport = function(t) {a('setting transport %s',t.name);const e = this;this.transport && (a('clearing existing transport %s',this.transport.name),this.transport.removeAllListeners()),this.transport = t,t.on('drain',function() {e.onDrain();}).on('packet',function(t) {e.onPacket(t);}).on('error',function(t) {e.onError(t);}).on('close',function() {e.onClose('transport close');});},n.prototype.probe = function(t) {function e() {if (f.onlyBinaryUpgrades) {const e = !this.supportsBinary && f.transport.supportsBinary;p = p || e;}p || (a('probe transport "%s" opened',t),h.send([{type:'ping',data:'probe'}]),h.once('packet',function(e) {if (!p) if ('pong' === e.type && 'probe' === e.data) {if (a('probe transport "%s" pong',t),f.upgrading = !0,f.emit('upgrading',h),!h) return;n.priorWebsocketSuccess = 'websocket' === h.name,a('pausing current transport "%s"',f.transport.name),f.transport.pause(function() {p || 'closed' !== f.readyState && (a('changing transport and sending upgrade packet'),u(),f.setTransport(h),h.send([{type:'upgrade'}]),f.emit('upgrade',h),h = null,f.upgrading = !1,f.flush());});} else {a('probe transport "%s" failed',t);const r = new Error('probe error');r.transport = h.name,f.emit('upgradeError',r);}}));} function r() {p || (p = !0,u(),h.close(),h = null);} function o(e) {const n = new Error('probe error: ' + e);n.transport = h.name,r(),a('probe transport "%s" failed because of error: %s',t,e),f.emit('upgradeError',n);} function i() {o('transport closed');} function s() {o('socket closed');} function c(t) {h && t.name !== h.name && (a('"%s" works - aborting "%s"',t.name,h.name),r());} function u() {h.removeListener('open',e),h.removeListener('error',o),h.removeListener('close',i),f.removeListener('close',s),f.removeListener('upgrading',c);}a('probing transport "%s"',t);var h = this.createTransport(t,{probe:1}),p = !1,f = this;n.priorWebsocketSuccess = !1,h.once('open',e),h.once('error',o),h.once('close',i),this.once('close',s),this.once('upgrading',c),h.open();},n.prototype.onOpen = function() {if (a('socket open'),this.readyState = 'open',n.priorWebsocketSuccess = 'websocket' === this.transport.name,this.emit('open'),this.flush(),'open' === this.readyState && this.upgrade && this.transport.pause) {a('starting upgrade probes');for (let t = 0,e = this.upgrades.length;t < e;t++) this.probe(this.upgrades[t]);}},n.prototype.onPacket = function(t) {if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) switch (a('socket receive: type "%s", data "%s"',t.type,t.data),this.emit('packet',t),this.emit('heartbeat'),t.type) {case 'open':this.onHandshake(p(t.data));break;case 'pong':this.setPing(),this.emit('pong');break;case 'error':var e = new Error('server error');e.code = t.data,this.onError(e);break;case 'message':this.emit('data',t.data),this.emit('message',t.data);} else a('packet received with socket readyState "%s"',this.readyState);},n.prototype.onHandshake = function(t) {this.emit('handshake',t),this.id = t.sid,this.transport.query.sid = t.sid,this.upgrades = this.filterUpgrades(t.upgrades),this.pingInterval = t.pingInterval,this.pingTimeout = t.pingTimeout,this.onOpen(),'closed' !== this.readyState && (this.setPing(),this.removeListener('heartbeat',this.onHeartbeat),this.on('heartbeat',this.onHeartbeat));},n.prototype.onHeartbeat = function(t) {clearTimeout(this.pingTimeoutTimer);const e = this;e.pingTimeoutTimer = setTimeout(function() {'closed' !== e.readyState && e.onClose('ping timeout');},t || e.pingInterval + e.pingTimeout);},n.prototype.setPing = function() {const t = this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer = setTimeout(function() {a('writing ping packet - expecting pong within %sms',t.pingTimeout),t.ping(),t.onHeartbeat(t.pingTimeout);},t.pingInterval);},n.prototype.ping = function() {const t = this;this.sendPacket('ping',function() {t.emit('ping');});},n.prototype.onDrain = function() {this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen = 0,0 === this.writeBuffer.length ? this.emit('drain') : this.flush();},n.prototype.flush = function() {'closed' !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length && (a('flushing %d packets in socket',this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen = this.writeBuffer.length,this.emit('flush'));},n.prototype.write = n.prototype.send = function(t,e,r) {return this.sendPacket('message',t,e,r),this;},n.prototype.sendPacket = function(t,e,r,n) {if ('function' == typeof e && (n = e,e = void 0),'function' == typeof r && (n = r,r = null),'closing' !== this.readyState && 'closed' !== this.readyState) {r = r || {},r.compress = !1 !== r.compress;const o = {type:t,data:e,options:r};this.emit('packetCreate',o),this.writeBuffer.push(o),n && this.once('flush',n),this.flush();}},n.prototype.close = function() {function t() {n.onClose('forced close'),a('socket closing - telling transport to close'),n.transport.close();} function e() {n.removeListener('upgrade',e),n.removeListener('upgradeError',e),t();} function r() {n.once('upgrade',e),n.once('upgradeError',e);} if ('opening' === this.readyState || 'open' === this.readyState) {this.readyState = 'closing';var n = this;this.writeBuffer.length ? this.once('drain',function() {this.upgrading ? r() : t();}) : this.upgrading ? r() : t();} return this;},n.prototype.onError = function(t) {a('socket error %j',t),n.priorWebsocketSuccess = !1,this.emit('error',t),this.onClose('transport error',t);},n.prototype.onClose = function(t,e) {if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {a('socket close with reason: "%s"',t);const r = this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners('close'),this.transport.close(),this.transport.removeAllListeners(),this.readyState = 'closed',this.id = null,this.emit('close',t,e),r.writeBuffer = [],r.prevBufferLen = 0;}},n.prototype.filterUpgrades = function(t) {for (var e = [],r = 0,n = t.length;r < n;r++)~c(this.transports,t[r]) && e.push(t[r]);return e;};}).call(e,function() {return this;}());},function(t,e,r) {(function(t) {function n(e) {let r,n = !1,a = !1,c = !1 !== e.jsonp;if (t.location) {let u = 'https:' === location.protocol,h = location.port;h || (h = u ? 443 : 80),n = e.hostname !== location.hostname || h !== e.port,a = e.secure !== u;} if (e.xdomain = n,e.xscheme = a,r = new o(e),'open' in r && !e.forceJSONP) return new i(e);if (!c) throw new Error('JSONP disabled');return new s(e);} var o = r(22),i = r(24),s = r(39),a = r(40);e.polling = n,e.websocket = a;}).call(e,function() {return this;}());},function(t,e,r) {(function(e) {const n = r(23);t.exports = function(t) {const r = t.xdomain,o = t.xscheme,i = t.enablesXDR;try {if ('undefined' != typeof XMLHttpRequest && (!r || n)) return new XMLHttpRequest;} catch (t) {} try {if ('undefined' != typeof XDomainRequest && !o && i) return new XDomainRequest;} catch (t) {} if (!r) try {return new (e[['Active'].concat('Object').join('X')])('Microsoft.XMLHTTP');} catch (t) {}};}).call(e,function() {return this;}());},function(t,e) {try {t.exports = 'undefined' != typeof XMLHttpRequest && 'withCredentials' in new XMLHttpRequest;} catch (e) {t.exports = !1;}},function(t,e,r) {(function(e) {function n() {} function o(t) {if (c.call(this,t),this.requestTimeout = t.requestTimeout,e.location) {let r = 'https:' === location.protocol,n = location.port;n || (n = r ? 443 : 80),this.xd = t.hostname !== e.location.hostname || n !== t.port,this.xs = t.secure !== r;} else this.extraHeaders = t.extraHeaders;} function i(t) {this.method = t.method || 'GET',this.uri = t.uri,this.xd = !!t.xd,this.xs = !!t.xs,this.async = !1 !== t.async,this.data = void 0 !== t.data ? t.data : null,this.agent = t.agent,this.isBinary = t.isBinary,this.supportsBinary = t.supportsBinary,this.enablesXDR = t.enablesXDR,this.requestTimeout = t.requestTimeout,this.pfx = t.pfx,this.key = t.key,this.passphrase = t.passphrase,this.cert = t.cert,this.ca = t.ca,this.ciphers = t.ciphers,this.rejectUnauthorized = t.rejectUnauthorized,this.extraHeaders = t.extraHeaders,this.create();} function s() {for (const t in i.requests)i.requests.hasOwnProperty(t) && i.requests[t].abort();} var a = r(22),c = r(25),u = r(35),h = r(37),p = r(3)('engine.io-client:polling-xhr');t.exports = o,t.exports.Request = i,h(o,c),o.prototype.supportsBinary = !0,o.prototype.request = function(t) {return t = t || {},t.uri = this.uri(),t.xd = this.xd,t.xs = this.xs,t.agent = this.agent || !1,t.supportsBinary = this.supportsBinary,t.enablesXDR = this.enablesXDR,t.pfx = this.pfx,t.key = this.key,t.passphrase = this.passphrase,t.cert = this.cert,t.ca = this.ca,t.ciphers = this.ciphers,t.rejectUnauthorized = this.rejectUnauthorized,t.requestTimeout = this.requestTimeout,t.extraHeaders = this.extraHeaders,new i(t);},o.prototype.doWrite = function(t,e) {const r = 'string' != typeof t && void 0 !== t,n = this.request({method:'POST',data:t,isBinary:r}),o = this;n.on('success',e),n.on('error',function(t) {o.onError('xhr post error',t);}),this.sendXhr = n;},o.prototype.doPoll = function() {p('xhr poll');const t = this.request(),e = this;t.on('data',function(t) {e.onData(t);}),t.on('error',function(t) {e.onError('xhr poll error',t);}),this.pollXhr = t;},u(i.prototype),i.prototype.create = function() {const t = {agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx = this.pfx,t.key = this.key,t.passphrase = this.passphrase,t.cert = this.cert,t.ca = this.ca,t.ciphers = this.ciphers,t.rejectUnauthorized = this.rejectUnauthorized;const r = this.xhr = new a(t),n = this;try {p('xhr open %s: %s',this.method,this.uri),r.open(this.method,this.uri,this.async);try {if (this.extraHeaders) {r.setDisableHeaderCheck(!0);for (const o in this.extraHeaders) this.extraHeaders.hasOwnProperty(o) && r.setRequestHeader(o,this.extraHeaders[o]);}} catch (t) {} if (this.supportsBinary && (r.responseType = 'arraybuffer'),'POST' === this.method) try {this.isBinary ? r.setRequestHeader('Content-type','application/octet-stream') : r.setRequestHeader('Content-type','text/plain;charset=UTF-8');} catch (t) {} try {r.setRequestHeader('Accept','*/*');} catch (t) {}'withCredentials' in r && (r.withCredentials = !0),this.requestTimeout && (r.timeout = this.requestTimeout),this.hasXDR() ? (r.onload = function() {n.onLoad();},r.onerror = function() {n.onError(r.responseText);}) : r.onreadystatechange = function() {4 === r.readyState && (200 === r.status || 1223 === r.status ? n.onLoad() : setTimeout(function() {n.onError(r.status);},0));},p('xhr data %s',this.data),r.send(this.data);} catch (t) {return void setTimeout(function() {n.onError(t);},0);}e.document && (this.index = i.requestsCount++,i.requests[this.index] = this);},i.prototype.onSuccess = function() {this.emit('success'),this.cleanup();},i.prototype.onData = function(t) {this.emit('data',t),this.onSuccess();},i.prototype.onError = function(t) {this.emit('error',t),this.cleanup(!0);},i.prototype.cleanup = function(t) {if ('undefined' != typeof this.xhr && null !== this.xhr) {if (this.hasXDR() ? this.xhr.onload = this.xhr.onerror = n : this.xhr.onreadystatechange = n,t) try {this.xhr.abort();} catch (t) {}e.document && delete i.requests[this.index],this.xhr = null;}},i.prototype.onLoad = function() {let t;try {let e;try {e = this.xhr.getResponseHeader('Content-Type').split(';')[0];} catch (t) {} if ('application/octet-stream' === e)t = this.xhr.response || this.xhr.responseText;else if (this.supportsBinary) try {t = String.fromCharCode.apply(null,new Uint8Array(this.xhr.response));} catch (e) {for (var r = new Uint8Array(this.xhr.response),n = [],o = 0,i = r.length;o < i;o++)n.push(r[o]);t = String.fromCharCode.apply(null,n);} else t = this.xhr.responseText;} catch (t) {this.onError(t);}null != t && this.onData(t);},i.prototype.hasXDR = function() {return 'undefined' != typeof e.XDomainRequest && !this.xs && this.enablesXDR;},i.prototype.abort = function() {this.cleanup();},i.requestsCount = 0,i.requests = {},e.document && (e.attachEvent ? e.attachEvent('onunload',s) : e.addEventListener && e.addEventListener('beforeunload',s,!1));}).call(e,function() {return this;}());},function(t,e,r) {function n(t) {const e = t && t.forceBase64;h && !e || (this.supportsBinary = !1),o.call(this,t);} var o = r(26),i = r(36),s = r(27),a = r(37),c = r(38),u = r(3)('engine.io-client:polling');t.exports = n;var h = function() {const t = r(22),e = new t({xdomain:!1});return null != e.responseType;}();a(n,o),n.prototype.name = 'polling',n.prototype.doOpen = function() {this.poll();},n.prototype.pause = function(t) {function e() {u('paused'),r.readyState = 'paused',t();} var r = this;if (this.readyState = 'pausing',this.polling || !this.writable) {let n = 0;this.polling && (u('we are currently polling - waiting to pause'),n++,this.once('pollComplete',function() {u('pre-pause polling complete'),--n || e();})),this.writable || (u('we are currently writing - waiting to pause'),n++,this.once('drain',function() {u('pre-pause writing complete'),--n || e();}));} else e();},n.prototype.poll = function() {u('polling'),this.polling = !0,this.doPoll(),this.emit('poll');},n.prototype.onData = function(t) {const e = this;u('polling got data %s',t);const r = function(t,r,n) {return 'opening' === e.readyState && e.onOpen(),'close' === t.type ? (e.onClose(),!1) : void e.onPacket(t);};s.decodePayload(t,this.socket.binaryType,r),'closed' !== this.readyState && (this.polling = !1,this.emit('pollComplete'),'open' === this.readyState ? this.poll() : u('ignoring poll - transport state "%s"',this.readyState));},n.prototype.doClose = function() {function t() {u('writing close packet'),e.write([{type:'close'}]);} var e = this;'open' === this.readyState ? (u('transport open - closing'),t()) : (u('transport not open - deferring close'),this.once('open',t));},n.prototype.write = function(t) {const e = this;this.writable = !1;const r = function() {e.writable = !0,e.emit('drain');};s.encodePayload(t,this.supportsBinary,function(t) {e.doWrite(t,r);});},n.prototype.uri = function() {let t = this.query || {},e = this.secure ? 'https' : 'http',r = '';!1 !== this.timestampRequests && (t[this.timestampParam] = c()),this.supportsBinary || t.sid || (t.b64 = 1),t = i.encode(t),this.port && ('https' === e && 443 !== Number(this.port) || 'http' === e && 80 !== Number(this.port)) && (r = ':' + this.port),t.length && (t = '?' + t);const n = this.hostname.indexOf(':') !== -1;return e + '://' + (n ? 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void 0 : e.data.buffer || e.data;if (t.ArrayBuffer && c instanceof ArrayBuffer) return o(e,r,a);if (k && c instanceof t.Blob) return s(e,r,a);if (c && c.base64) return n(e,a);let u = v[e.type];return void 0 !== e.data && (u += i ? d.encode(String(e.data)) : String(e.data)),a('' + u);},e.encodeBase64Packet = function(r,n) {let o = 'b' + e.packets[r.type];if (k && r.data instanceof t.Blob) {const i = new FileReader;return i.onload = function() {const t = i.result.split(',')[1];n(o + t);},i.readAsDataURL(r.data);} let s;try {s = String.fromCharCode.apply(null,new Uint8Array(r.data));} catch (t) {for (var a = new Uint8Array(r.data),c = new Array(a.length),u = 0;u < a.length;u++)c[u] = a[u];s = String.fromCharCode.apply(null,c);} return o += t.btoa(s),n(o);},e.decodePacket = function(t,r,n) {if (void 0 === t) return w;if ('string' == typeof t) {if ('b' == t.charAt(0)) return e.decodeBase64Packet(t.substr(1),r);if (n && (t = a(t),t === !1)) return w;var o = t.charAt(0);return Number(o) == o && b[o] ? 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(u('calling ack %s with %j',t.id,t.data),e.apply(this,t.data),delete this.acks[t.id]) : u('bad ack %s',t.id);},n.prototype.onconnect = function() {this.connected = !0,this.disconnected = !1,this.emit('connect'),this.emitBuffered();},n.prototype.emitBuffered = function() {let t;for (t = 0;t < this.receiveBuffer.length;t++)f.apply(this,this.receiveBuffer[t]);for (this.receiveBuffer = [],t = 0;t < this.sendBuffer.length;t++) this.packet(this.sendBuffer[t]);this.sendBuffer = [];},n.prototype.ondisconnect = function() {u('server disconnect (%s)',this.nsp),this.destroy(),this.onclose('io server disconnect');},n.prototype.destroy = function() {if (this.subs) {for (let t = 0;t < this.subs.length;t++) this.subs[t].destroy();this.subs = null;} this.io.destroy(this);},n.prototype.close = n.prototype.disconnect = function() {return this.connected && (u('performing disconnect (%s)',this.nsp),this.packet({type:o.DISCONNECT})),this.destroy(),this.connected && this.onclose('io client disconnect'),this;},n.prototype.compress = function(t) {return this.flags = this.flags || {},this.flags.compress = t,this;};},function(t,e) {function r(t,e) {const r = [];e = e || 0;for (let n = e || 0;n < t.length;n++)r[n - e] = t[n];return r;}t.exports = r;},function(t,e) {'use strict';function r(t,e,r) {return t.on(e,r),{destroy:function() {t.removeListener(e,r);}};}t.exports = r;},function(t,e) {const r = [].slice;t.exports = function(t,e) {if ('string' == typeof e && (e = t[e]),'function' != typeof e) throw new Error('bind() requires a function');const n = r.call(arguments,2);return function() {return e.apply(t,n.concat(r.call(arguments)));};};},function(t,e) {function r(t) {t = t || {},this.ms = t.min || 100,this.max = t.max || 1e4,this.factor = t.factor || 2,this.jitter = t.jitter > 0 && t.jitter <= 1 ? t.jitter : 0,this.attempts = 0;}t.exports = r,r.prototype.duration = function() {let t = this.ms * Math.pow(this.factor,this.attempts++);if (this.jitter) {const e = Math.random(),r = Math.floor(e * this.jitter * t);t = 0 == (1 & Math.floor(10 * e)) ? t - r : t + r;} return 0 | Math.min(t,this.max);},r.prototype.reset = function() {this.attempts = 0;},r.prototype.setMin = function(t) {this.ms = t;},r.prototype.setMax = function(t) {this.max = t;},r.prototype.setJitter = function(t) {this.jitter = t;};}]);});