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s=t.ack;s<i;s+=1)if(!n[s].sent||s===t.ack)s===t.ack&&n[s].sent?(this._window=Math.max(1,Math.round(this._window/10)),i=Math.min(t.ack+this._window,n.length)):s===t.ack&&(this._window=Math.min(1e3,Math.round(this._window*10)),i=Math.min(t.ack+this._window,n.length)),n[s].sent=!0,r.push(["chunk",e,s,n[s].payload]);t.ack+this._window>=n.length-1&&r.push(["end",e,n.length]),r._multiple=!0,this._handleSend(r)},a.prototype._complete=function(e){u.log("Complete",e);var t=this,n=this._incoming[e].chunks,r=new Blob(n);u.blobToArrayBuffer(r,function(e){u.log("Calling onmessage with complete message"),t.onmessage(u.unpack(e))}),delete this._incoming[e]},a.higherBandwidthSDP=function(e){var t=e.split("b=AS:30"),n="b=AS:102400";return t[0]+n+t[1]},e.Reliable=a;var f=null,l=null,c=null;navigator.mozGetUserMedia?(u.browserisms="Firefox",RTCSessionDescription=window.mozRTCSessionDescription,f=window.mozRTCPeerConnection,l=navigator.mozGetUserMedia.bind(navigator)):navigator.webkitGetUserMedia&&(u.browserisms="Webkit",f=window.webkitRTCPeerConnection,l=navigator.webkitGetUserMedia.bind(navigator)),e.RTCSessionDescription=RTCSessionDescription,e.RTCPeerConnection=f,e.getUserMedia=l,u.inherits(h,s),h.prototype._getId=function(e){var t=this;try{var n=new XMLHttpRequest,r="http://"+this._options.host+":"+this._options.port+"/"+this._options.key+"/id",i="?ts="+(new Date).getTime()+""+Math.random();r+=i,n.open("get",r,!0),n.onreadystatechange=function(){n.readyState===4&&(t.id=n.responseText,t._init())},n.send(null)}catch(s){this._abort("server-error","Could not get an ID from the server")}},h.prototype._init=function(){var e=this;this._socket=new v(this._options.host,this._options.port,this._options.key,this.id),this._socket.on("message",function(t){e._handleServerJSONMessage(t)}),this._socket.on("error",function(t){u.log(t),e._abort("socket-error",t)}),this._socket.on("close",function(){var t="Underlying socket has closed";u.log("error",t),e._abort("socket-closed",t)}),this._socket.start()},h.prototype._handleServerJSONMessage=function(e){var t=e.src,n=this.managers[t],r=e.payload;switch(e.type){case"OPEN":this._processQueue(),this.emit("open",this.id);break;case"ERROR":u.log(r.msg),this._abort("server-error",r.msg);break;case"ID-TAKEN":this._abort("unavailable-id","ID `"+this.id+"` is taken");break;case"OFFER":var i={sdp:r.sdp,labels:r.labels,config:this._options.config},n=this.managers[t];n||(n=new d(this.id,t,this._socket,i),this._attachManagerListeners(n),this.managers[t]=n,this.connections[t]={}),n.update(i.labels),n.handleSDP(r.sdp,e.type);break;case"EXPIRE":n&&(n.close(),n.emit("error",new Error("Could not connect to peer "+n.peer)));break;case"ANSWER":n&&n.handleSDP(r.sdp,e.type);break;case"CANDIDATE":n&&n.handleCandidate(r);break;case"LEAVE":n&&n.handleLeave();break;case"INVALID-KEY":this._abort("invalid-key",'API KEY "'+this._key+'" is invalid');break;case"PORT":default:u.log("Unrecognized message type:",e.type)}},h.prototype._processQueue=function(){while(this._queued.length>0){var e=this._queued.pop();e.initialize(this.id,this._socket)}},h.prototype._attachManagerListeners=function(e){var t=this;e.on("connection",function(e){t.connections[e.peer][e.label]=e,t.emit("connection",e)}),e.on("close",function(){!t.managers[e.peer]||delete t.managers[e.peer]}),e.on("error",function(e){t.emit("error",e)})},h.prototype._abort=function(e,t){var n=new Error(t);n.type=e,this.destroy(),this.emit("error",n)},h.prototype._cleanup=function(){var e=this;if(!!this.managers){var t=Object.keys(this.managers);for(var n=0,r=t.length;n<r;n++)this.managers[t[n]].close();u.setZeroTimeout(function(){e.disconnect()})}this.emit("close")},h.prototype.connect=function(e,t){if(this.disconnected){var n=new Error("This Peer has been disconnected from the server and can no longer make connections.");n.type="server-disconnected",this.emit("error",n);return}t=u.extend({config:this._options.config},t);var r=this.managers[e];r||(r=new d(this.id,e,this._socket,t),this._attachManagerListeners(r),this.managers[e]=r,this.connections[e]={});var i=r.connect(t);return!i||(this.connections[e][i[0]]=i[1]),this.id||this._queued.push(r),i[1]},h.prototype.getId=function(){return this.id},h.prototype.destroy=function(){this.destroyed||(this._cleanup(),this.destroyed=!0)},h.prototype.disconnect=function(){this.disconnected||(this._socket.close(),this.id=null,this.disconnected=!0)},h.prototype.isConnected=function(){return!this.disconnected},h.prototype.isDestroyed=function(){return this.destroyed},e.Peer=h,u.inherits(p,s),p.prototype._configureDataChannel=function(){var e=this;u.browserisms!=="Webkit"&&(this._dc.binaryType="arraybuffer"),this._dc.onopen=function(){u.log("Data channel connection success"),e.open=!0,e.emit("open")},this._isReliable&&(this._reliable=new a(this._dc,u.debug)),this._reliable?this._reliable.onmessage=function(t){e.emit("data",t)}:this._dc.onmessage=function(t){e._handleDataMessage(t)},this._dc.onclose=function(t){u.log("DataChannel closed."),e.close()}},p.prototype._cleanup=function(){!!this._dc&&this._dc.readyState!=="closed"&&(this._dc.close(),this._dc=null),this.open=!1,this.emit("close")},p.prototype._handleDataMessage=function(e){var t=this,n=e.data,r=n.constructor;if(this.serialization==="binary"||this.serialization==="binary-utf8"){if(r===Blob){u.blobToArrayBuffer(n,function(e){n=u.unpack(e),t.emit("data",n)});return}if(r===ArrayBuffer)n=u.unpack(n);else if(r===String){var i=u.binaryStringToArrayBuffer(n);n=u.unpack(i)}}else this.serialization==="json"&&(n=JSON.parse(n));this.emit("data",n)},p.prototype.addDC=function(e){this._dc=e,this._configureDataChannel()},p.prototype.close=function(){if(!this.open)return;this._cleanup()},p.prototype.send=function(e){this.open||this.emit("error",new Error("Connection no longer open."));if(this._reliable){this._reliable.send(e);return}var t=this;if(this.serialization==="none")this._dc.send(e);else if(this.serialization==="json")this._dc.send(JSON.stringify(e));else{var n=this.serialization==="binary-utf8",r=u.pack(e,n);u.browserisms==="Webkit"?u.blobToBinaryString(r,function(e){t._dc.send(e)}):this._dc.send(r)}},p.prototype.isOpen=function(){return this.open},p.prototype.getMetadata=function(){return this.metadata},p.prototype.getLabel=function(){return this.label},p.prototype.getPeer=function(){return this.peer},u.inherits(d,s),d.prototype.initialize=function(e,t){!e||(this.id=e),!t||(this._socket=t),this._startPeerConnection(),this._processQueue(),this._setupIce(),this._setupNegotiationHandler(),this._setupDataChannel(),this.initialize=function(){}},d.prototype._startPeerConnection=function(){u.log("Creating RTCPeerConnection"),this.pc=new f(this._options.config,{optional:[{RtpDataChannels:!0}]})},d.prototype._processQueue=function(){var e=this._queued.pop();!e||e.addDC(this.pc.createDataChannel(e.label,{reliable:!1}))},d.prototype._setupIce=function(){u.log("Listening for ICE candidates.");var e=this;this.pc.onicecandidate=function(t){t.candidate&&(u.log("Received ICE candidates."),e._socket.send({type:"CANDIDATE",payload:{candidate:t.candidate},dst:e.peer}))},this.pc.oniceconnectionstatechange=function(){!!e.pc&&e.pc.iceConnectionState==="disconnected"&&(u.log("iceConnectionState is disconnected, closing connections to "+this.peer),e.close())},this.pc.onicechange=function(){!!e.pc&&e.pc.iceConnectionState==="disconnected"&&(u.log("iceConnectionState is disconnected, closing connections to "+this.peer),e.close())}},d.prototype._setupNegotiationHandler=function(){var e=this;u.log("Listening for `negotiationneeded`"),this.pc.onnegotiationneeded=function(){u.log("`negotiationneeded` triggered"),e._makeOffer()}},d.prototype._setupDataChannel=function(){var e=this;u.log("Listening for data channel"),this.pc.ondatachannel=function(t){u.log("Received data channel");var n=t.channel,r=n.label,i=e.labels[r]||{},s=new p(e.peer,n,i);e._attachConnectionListeners(s),e.connections[r]=s,e.emit("connection",s)}},d.prototype._makeOffer=function(){var e=this;this.pc.createOffer(function(t){u.log("Created offer."),e.pc.setLocalDescription(t,function(){u.log("Set localDescription to offer"),e._socket.send({type:"OFFER",payload:{sdp:t,config:e._options.config,labels:e.labels},dst:e.peer}),e.labels={}},function(t){e.emit("error",t),u.log("Failed to setLocalDescription, ",t)})})},d.prototype._makeAnswer=function(){var e=this;this.pc.createAnswer(function(t){u.log("Created answer."),e.pc.setLocalDescription(t,function(){u.log("Set localDescription to answer."),e._socket.send({type:"ANSWER",payload:{sdp:t},dst:e.peer})},function(t){e.emit("error",t),u.log("Failed to setLocalDescription, ",t)})},function(t){e.emit("error",t),u.log("Failed to create answer, ",t)})},d.prototype._cleanup=function(){u.log("Cleanup ConnectionManager for "+this.peer),!!this.pc&&(this.pc.readyState!=="closed"||this.pc.signalingState!=="closed")&&(this.pc.close(),this.pc=null);var e=this;this._socket.send({type:"LEAVE",dst:e.peer}),this.open=!1,this.emit("close")},d.prototype._attachConnectionListeners=function(e){var t=this;e.on("close",function(){!t.connections[e.label]||delete t.connections[e.label],Object.keys(t.connections).length||t._cleanup()}),e.on("open",function(){t._lock=!1,t._processQueue()})},d.prototype.handleSDP=function(e,t){e=new RTCSessionDescription(e);var n=this;this.pc.setRemoteDescription(e,function(){u.log("Set remoteDescription: "+t),t==="OFFER"&&n._makeAnswer()},function(e){n.emit("error",e),u.log("Failed to setRemoteDescription, ",e)})},d.prototype.handleCandidate=function(e){var t=new RTCIceCandidate(e.candidate);this.pc.addIceCandidate(t),u.log("Added ICE candidate.")},d.prototype.handleLeave=function(){u.log("Peer "+this.peer+" disconnected."),this.close()},d.prototype.close=function(){if(!this.open){this.emit("error",new Error("Connections to "+this.peer+"are already closed."));return}var e=Object.keys(this.connections);for(var t=0,n=e.length;t<n;t+=1){var r=e[t],i=this.connections[r];i.close()}this.connections=null,this._cleanup()},d.prototype.connect=function(e){if(!this.open)return;e=u.extend({label:"peerjs"},e);while(!!this.connections[e.label])e.label="peerjs"+this._default,this._default+=1;this.labels[e.label]=e;var t;!!this.pc&&!this._lock&&(t=this.pc.createDataChannel(e.label,{reliable:!1}));var n=new p(this.peer,t,e);return this._attachConnectionListeners(n),this.connections[e.label]=n,(!this.pc||this._lock)&&this._queued.push(n),this._lock=!0,[e.label,n]},d.prototype.update=function(e){var t=Object.keys(e);for(var n=0,r=t.length;n<r;n+=1){var i=t[n];this.labels[i]=e[i]}},u.inherits(v,s),v.prototype.start=function(){this._startXhrStream(),this._startWebSocket()},v.prototype._startWebSocket=function(){var e=this;if(!!this._socket)return;this._socket=new WebSocket(this._wsUrl),this._socket.onmessage=function(t){var n;try{n=JSON.parse(t.data)}catch(r){u.log("Invalid server message",t.data);return}e.emit("message",n)},this._socket.onopen=function(){!e._timeout||(clearTimeout(e._timeout),setTimeout(function(){e._http.abort(),e._http=null},5e3)),u.log("Socket open")}},v.prototype._startXhrStream=function(e){try{var t=this;this._http=new XMLHttpRequest,this._http._index=1,this._http._streamIndex=e||0,this._http.open("post",this._httpUrl+"/id?i="+this._http._streamIndex,!0),this._http.onreadystatechange=function(){this.readyState==2&&!!this.old&&(this.old.abort(),delete this.old),this.readyState>2&&this.status==200&&!!this.responseText&&t._handleStream(this)},this._http.send(null),this._setHTTPTimeout()}catch(n){u.log("XMLHttpRequest not available; defaulting to WebSockets")}},v.prototype._handleStream=function(e){var t=e.responseText.split("\n");if(!!e._buffer)while(e._buffer.length>0){var n=e._buffer.shift(),r=t[n];try{r=JSON.parse(r)}catch(i){e._buffer.shift(n);break}this.emit("message",r)}var s=t[e._index];if(!!s){e._index+=1;if(e._index===t.length)e._buffer||(e._buffer=[]),e._buffer.push(e._index-1);else{try{s=JSON.parse(s)}catch(i){u.log("Invalid server message",s);return}this.emit("message",s)}}},v.prototype._setHTTPTimeout=function(){var e=this;this._timeout=setTimeout(function(){var t=e._http;e._wsOpen()?t.abort():(e._startXhrStream(t._streamIndex+1),e._http.old=t)},25e3)},v.prototype._wsOpen=function(){return!!this._socket&&this._socket.readyState==1},v.prototype.send=function(e){if(this.disconnected)return;if(!e.type){this.emit("error","Invalid message");return}var t=JSON.stringify(e);if(this._wsOpen())this._socket.send(t);else{var n=new XMLHttpRequest,r=this._httpUrl+"/"+e.type.toLowerCase();n.open("post",r,!0),n.setRequestHeader("Content-Type","application/json"),n.send(t)}},v.prototype.close=function(){!this.disconnected&&this._wsOpen()&&(this._socket.close(),this.disconnected=!0)}})(this)