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this._retryCount>0&&(a=r*Math.pow(s,this._retryCount-1))>o&&(a=o),this._debug("next delay",a),a},e.prototype._wait=function(){var e=this;return new Promise((function(t){setTimeout(t,e._getNextDelay())}))},e.prototype._getNextUrl=function(e){if("string"==typeof e)return Promise.resolve(e);if("function"==typeof e){var t=e();if("string"==typeof t)return Promise.resolve(t);if(t.then)return t}throw Error("Invalid URL")},e.prototype._connect=function(){var e=this;if(!this._connectLock&&this._shouldReconnect){this._connectLock=!0;var t=this._options,s=t.maxRetries,i=void 0===s?B.maxRetries:s,r=t.connectionTimeout,n=void 0===r?B.connectionTimeout:r,o=t.WebSocket,a=void 0===o?$():o;if(this._retryCount>=i)this._debug("max retries reached",this._retryCount,">=",i);else{if(this._retryCount++,this._debug("connect",this._retryCount),this._removeListeners(),void 0===(h=a)||!h||2!==h.CLOSING)throw Error("No valid WebSocket class provided");var h;this._wait().then((function(){return e._getNextUrl(e._url)})).then((function(t){e._closeCalled||(e._debug("connect",{url:t,protocols:e._protocols}),e._ws=e._protocols?new a(t,e._protocols):new a(t),e._ws.binaryType=e._binaryType,e._connectLock=!1,e._addListeners(),e._connectTimeout=setTimeout((function(){return e._handleTimeout()}),n))}))}}},e.prototype._handleTimeout=function(){this._debug("timeout event"),this._handleError(new O(Error("TIMEOUT"),this))},e.prototype._disconnect=function(e,t){if(void 0===e&&(e=1e3),this._clearTimeouts(),this._ws){this._removeListeners();try{this._ws.close(e,t),this._handleClose(new k(e,t,this))}catch(e){}}},e.prototype._acceptOpen=function(){this._debug("accept open"),this._retryCount=0},e.prototype._callEventListener=function(e,t){"handleEvent"in t?t.handleEvent(e):t(e)},e.prototype._removeListeners=function(){this._ws&&(this._debug("removeListeners"),this._ws.removeEventListener("open",this._handleOpen),this._ws.removeEventListener("close",this._handleClose),this._ws.removeEventListener("message",this._handleMessage),this._ws.removeEventListener("error",this._handleError))},e.prototype._addListeners=function(){this._ws&&(this._debug("addListeners"),this._ws.addEventListener("open",this._handleOpen),this._ws.addEventListener("close",this._handleClose),this._ws.addEventListener("message",this._handleMessage),this._ws.addEventListener("error",this._handleError))},e.prototype._clearTimeouts=function(){clearTimeout(this._connectTimeout),clearTimeout(this._uptimeTimeout)},e}(),F={debug:3,info:4,warn:5,error:6};class q{constructor(e,t,s,i){this.wsAddr=`${e}?app=${t}&id=${s}&v=${i}`,this.destroyed=!1;try{this._ws=this._init()}catch(e){console.error(e)}}_init(){const e={maxRetries:3,minReconnectionDelay:p(5e3,15e3),maxReconnectionDelay:6e5,maxEnqueuedMessages:200};return new x(this.wsAddr,void 0,e)}send(e,t){if(this.destroyed)return;const s=F[e];this._ws.send(JSON.stringify({records:[{level:s,text:`${C()}: ${t}`}]}))}sendBatch(e){const t=[];for(let s of e)t.push({level:F[s.levelKey],text:s.message});this._ws.send(JSON.stringify({records:t}))}destroy(){this._ws&&(this._ws.close(1e3,"normal close"),this._ws=null,this.destroyed=!0)}}const W=e=>{const t=localStorage.getItem(e);try{const e=JSON.parse(t);return e.value?e.value:e}catch(e){return t}},z=(e,t,s)=>{((e,t)=>{"object"==typeof t&&(t=JSON.stringify(t)),localStorage.setItem(e,t)})(e,{value:t,duration:s,startTime:Date.now()})},U={debug:0,info:1,warn:2,error:3,none:4};const H=class{constructor(e){this.logLevel=e,this.onlineDebug=!1,this.logCache=[];try{console.debug=console.log}catch(e){}"debug"!==e&&"info"!==e||(this.logLevel="error"),W("SW_DEBUG")&&(this.logLevel="debug"),!0===e?this.logLevel="warn":!1===e?this.logLevel="none":e in U||(this.logLevel="error"),this.resetLogger()}enableDebug(){this.onlineDebug=!0;for(let e in U)this[e]=console[e];this._hookLogFunc(((e,t)=>{this.logUploader&&this.logUploader.send(e,t)}))}enableReport(e){this.reportUrl=e,this._hookLogFunc(((e,t)=>{this.reportUrl?(this.logCache.push({levelKey:e,message:`${C()}: ${t}`}),this.logCache.length>250&&this.logCache.shift()):this.reporter&&this.reporter.send(e,t)}))}report(e,t,s,i,r=5e3){e&&this.logCache.unshift({levelKey:"info",message:e}),this.reporter=new q(this.reportUrl,t,s,i),this.reporter._ws.addEventListener("open",(()=>{this.reportUrl=void 0,this.reporter.sendBatch(this.logCache),setTimeout((()=>{this.reporter.destroy(),this.reporter=null}),r)}),{once:!0})}_hookLogFunc(e){for(let t in U){const s=this[t];this[t]=i=>{e(t,i),s(i)}}}setUploader(e){this.logUploader=e}resetLogger(){this.onlineDebug=!1;for(let e in U)U[e]<U[this.logLevel]?this[e]=d:this[e]=console[e]}get isDebugLevel(){return U[this.logLevel]<=2||this.onlineDebug}};var G=s(363),j=s.n(G);const V=65536;function X(e){return e.replace(/a=ice-options:trickle\s\n/g,"")}class Y extends(n()){constructor(e){super(),this.channelName=e.initiator?e.channelName:null,this.initiator=e.initiator||!1,this.channelConfig=e.channelConfig||Y.channelConfig,this.channelNegotiated=this.channelConfig.negotiated,this.config=Object.assign({},Y.config,e.config),this.offerOptions=e.offerOptions||{},this.answerOptions=e.answerOptions||{},this.sdpTransform=e.sdpTransform||(e=>e),this.trickle=void 0===e.trickle||e.trickle,this.allowHalfTrickle=void 0!==e.allowHalfTrickle&&e.allowHalfTrickle,this.iceCompleteTimeout=e.iceCompleteTimeout||5e3,this.destroyed=!1,this.destroying=!1,this._connected=!1,this.remoteAddress=void 0,this.remoteFamily=void 0,this.remotePort=void 0,this.localAddress=void 0,this.localFamily=void 0,this.localPort=void 0,this._wrtc=e.wrtc&&"object"==typeof e.wrtc?e.wrtc:_(),this._pcReady=!1,this._channelReady=!1,this._iceComplete=!1,this._iceCompleteTimer=null,this._channel=null,this._pendingCandidates=[],this._pendingData=[],this._isNegotiating=!1,this._firstNegotiation=!0,this._batchedNegotiation=!1,this._queuedNegotiation=!1,this._senderMap=new Map,this._closingInterval=null,this._chunk=null,this._cb=null,this._interval=null;try{this._pc=new this._wrtc.RTCPeerConnection(this.config)}catch(e){return void j()((()=>this.destroy(e)))}this._pc.oniceconnectionstatechange=()=>{this._onIceStateChange()},this._pc.onicegatheringstatechange=()=>{this._onIceStateChange()},this._pc.onconnectionstatechange=()=>{this._onConnectionStateChange()},this._pc.onsignalingstatechange=()=>{this._onSignalingStateChange()},this._pc.onicecandidate=e=>{this._onIceCandidate(e)},this.initiator||this.channelNegotiated?this._setupData({channel:this._pc.createDataChannel(this.channelName,this.channelConfig)}):this._pc.ondatachannel=e=>{this._setupData(e)},this._needsNegotiation()}get bufferSize(){return this._channel&&this._channel.bufferedAmount||0}get connected(){return this._connected&&"open"===this._channel.readyState}signal(e){if(!this.destroyed&&this._pc){if("string"==typeof e)try{e=JSON.parse(e)}catch(t){e={}}if(e.renegotiate&&this.initiator&&this._needsNegotiation(),e.candidate)if(this._pc.remoteDescription&&this._pc.remoteDescription.type)try{this._addIceCandidate(e.candidate)}catch(e){}else this._pendingCandidates.push(e.candidate);e.sdp&&this._pc.setRemoteDescription(new this._wrtc.RTCSessionDescription(e)).then((()=>{this.destroyed||(this._pendingCandidates.forEach((e=>{try{this._addIceCandidate(e)}catch(e){}})),this._pendingCandidates=[],"offer"===this._pc.remoteDescription.type&&this._createAnswer())})).catch((e=>{this.destroy(e)})),e.sdp||e.candidate||e.renegotiate||e.transceiverRequest||this.destroy(new Error("signal() called with invalid signal data"))}}_addIceCandidate(e){const t=new this._wrtc.RTCIceCandidate(e);this._pc.addIceCandidate(t).catch((e=>{var s;!t.address||t.address.endsWith(".local")?(s="Ignoring unsupported ICE candidate.",console.warn(s)):this.destroy(e)}))}send(e){if("string"==typeof e){RTCDataChannel.prototype.send.toString().includes("[native code]")&&this._channel.send(e)}else this._channel.send(e)}_needsNegotiation(){this._batchedNegotiation||(this._batchedNegotiation=!0,j()((()=>{this._batchedNegotiation=!1,!this.initiator&&this._firstNegotiation||this.negotiate(),this._firstNegotiation=!1})))}negotiate(){this.initiator?this._isNegotiating?this._queuedNegotiation=!0:setTimeout((()=>{this._createOffer()}),0):this._isNegotiating?this._queuedNegotiation=!0:this.emit("signal",{type:"renegotiate",renegotiate:!0}),this._isNegotiating=!0}destroy(e){this._destroy(e)}_destroy(e){this.destroyed||this.destroying||(this.destroying=!0,j()((()=>{if(this.destroyed=!0,this.destroying=!1,this._connected=!1,this._pcReady=!1,this._channelReady=!1,this._senderMap=null,clearInterval(this._closingInterval),this._closingInterval=null,clearInterval(this._interval),this._interval=null,this._chunk=null,this._cb=null,this._channel){try{this._channel.close()}catch(e){}this._channel.onmessage=null,this._channel.onopen=null,this._channel.onclose=null,this._channel.onerror=null}if(this._pc){try{this._pc.close()}catch(e){}this._pc.oniceconnectionstatechange=null,this._pc.onicegatheringstatechange=null,this._pc.onsignalingstatechange=null,this._pc.onicecandidate=null,this._pc.ondatachannel=null}this._pc=null,this._channel=null,e&&this.emit("error",e),this.emit("close")})))}_setupData(e){if(!e.channel)return this.destroy(new Error("Data channel event is missing `channel` property"));this._channel=e.channel,this._channel.binaryType="arraybuffer","number"==typeof this._channel.bufferedAmountLowThreshold&&(this._channel.bufferedAmountLowThreshold=V),this.channelName=this._channel.label,this._channel.onmessage=e=>{this._onChannelMessage(e)},this._channel.onbufferedamountlow=()=>{this._onChannelBufferedAmountLow()},this._channel.onopen=()=>{this._onChannelOpen()},this._channel.onclose=()=>{this._onChannelClose()},this._channel.onerror=e=>{this.destroy(e)};let t=!1;this._closingInterval=setInterval((()=>{this._channel&&"closing"===this._channel.readyState?(t&&this._onChannelClose(),t=!0):t=!1}),5e3)}get isBufferedAmountHigh(){return this._channel.bufferedAmount>V}write(e,t){if(this.destroyed)return t(new Error("cannot write after peer is destroyed"));if(this._connected){try{this.send(e)}catch(e){return this.destroy(e)}this.isBufferedAmountHigh?this._cb=t:t(null)}else this._chunk=e,this._cb=t}_startIceCompleteTimeout(){this.destroyed||this._iceCompleteTimer||(this._iceCompleteTimer=setTimeout((()=>{this._iceComplete||(this._iceComplete=!0,this.emit("iceTimeout"),this.emit("_iceComplete"))}),this.iceCompleteTimeout))}_createOffer(){this.destroyed||this._pc.createOffer(this.offerOptions).then((e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=X(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(this.destroyed)return;const t=this._pc.localDescription||e;this.emit("signal",{type:t.type,sdp:t.sdp})};this._pc.setLocalDescription(e).then((()=>{this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))})).catch((e=>{this.destroy(e)}))})).catch((e=>{this.destroy(e)}))}_createAnswer(){this.destroyed||this._pc.createAnswer(this.answerOptions).then((e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=X(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(this.destroyed)return;const t=this._pc.localDescription||e;this.emit("signal",{type:t.type,sdp:t.sdp})};this._pc.setLocalDescription(e).then((()=>{this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))})).catch((e=>{this.destroy(e)}))})).catch((e=>{this.destroy(e)}))}_onConnectionStateChange(){this.destroyed||"failed"===this._pc.connectionState&&this.destroy(new Error("Connection failed."))}_onIceStateChange(){if(this.destroyed)return;const e=this._pc.iceConnectionState,t=this._pc.iceGatheringState;this.emit("iceStateChange",e,t),"connected"!==e&&"completed"!==e||(this._pcReady=!0,this._maybeReady()),"failed"===e&&this.destroy(new Error("Ice connection failed.")),"closed"===e&&this.destroy(new Error("Ice connection closed."))}getStats(e){const t=e=>("[object Array]"===Object.prototype.toString.call(e.values)&&e.values.forEach((t=>{Object.assign(e,t)})),e);0===this._pc.getStats.length?this._pc.getStats().then((s=>{const i=[];s.forEach((e=>{i.push(t(e))})),e(null,i)}),(t=>e(t))):this._pc.getStats.length>0?this._pc.getStats((s=>{if(this.destroyed)return;const i=[];s.result().forEach((e=>{const s={};e.names().forEach((t=>{s[t]=e.stat(t)})),s.id=e.id,s.type=e.type,s.timestamp=e.timestamp,i.push(t(s))})),e(null,i)}),(t=>e(t))):e(null,[])}_maybeReady(){if(this._connected||this._connecting||!this._pcReady||!this._channelReady)return;this._connecting=!0;const e=()=>{this.destroyed||this.getStats(((t,s)=>{if(this.destroyed)return;t&&(s=[]);const i={},r={},n={};let o=!1;s.forEach((e=>{"remotecandidate"!==e.type&&"remote-candidate"!==e.type||(i[e.id]=e),"localcandidate"!==e.type&&"local-candidate"!==e.type||(r[e.id]=e),"candidatepair"!==e.type&&"candidate-pair"!==e.type||(n[e.id]=e)}));const a=e=>{o=!0;let t=r[e.localCandidateId];t&&(t.ip||t.address)?(this.localAddress=t.ip||t.address,this.localPort=Number(t.port)):t&&t.ipAddress?(this.localAddress=t.ipAddress,this.localPort=Number(t.portNumber)):"string"==typeof e.googLocalAddress&&(t=e.googLocalAddress.split(":"),this.localAddress=t[0],this.localPort=Number(t[1])),this.localAddress&&(this.localFamily=this.localAddress.includes(":")?"IPv6":"IPv4");let s=i[e.remoteCandidateId];s&&(s.ip||s.address)?(this.remoteAddress=s.ip||s.address,this.remotePort=Number(s.port)):s&&s.ipAddress?(this.remoteAddress=s.ipAddress,this.remotePort=Number(s.portNumber)):"string"==typeof e.googRemoteAddress&&(s=e.googRemoteAddress.split(":"),this.remoteAddress=s[0],this.remotePort=Number(s[1])),this.remoteAddress&&(this.remoteFamily=this.remoteAddress.includes(":")?"IPv6":"IPv4")};if(s.forEach((e=>{"transport"===e.type&&e.selectedCandidatePairId&&a(n[e.selectedCandidatePairId]),("googCandidatePair"===e.type&&"true"===e.googActiveConnection||("candidatepair"===e.type||"candidate-pair"===e.type)&&e.selected)&&a(e)})),o||Object.keys(n).length&&!Object.keys(r).length){if(this._connecting=!1,this._connected=!0,this._chunk){try{this.send(this._chunk)}catch(t){return this.destroy(t)}this._chunk=null;const e=this._cb;this._cb=null,e(null)}"number"!=typeof this._channel.bufferedAmountLowThreshold&&(this._interval=setInterval((()=>this._onInterval()),150),this._interval.unref&&this._interval.unref()),this.emit("connect");for(let e of this._pendingData)this.emit("data",e);this._pendingData=[]}else setTimeout(e,100)}))};e()}_onInterval(){!this._cb||!this._channel||this._channel.bufferedAmount>V||this._onChannelBufferedAmountLow()}_onSignalingStateChange(){this.destroyed||("stable"===this._pc.signalingState&&(this._isNegotiating=!1,this._queuedNegotiation?(this._queuedNegotiation=!1,this._needsNegotiation()):this.emit("negotiated")),this.emit("signalingStateChange",this._pc.signalingState))}_onIceCandidate(e){this.destroyed||(e.candidate&&this.trickle?this.emit("signal",{type:"candidate",candidate:{candidate:e.candidate.candidate,sdpMLineIndex:e.candidate.sdpMLineIndex,sdpMid:e.candidate.sdpMid}}):e.candidate||this._iceComplete||(this._iceComplete=!0,this.emit("_iceComplete")),e.candidate&&this._startIceCompleteTimeout())}_onChannelMessage(e){if(this.destroyed)return;let t=e.data;t instanceof ArrayBuffer&&(t=o.h.from(t)),this._connected?this.emit("data",t):this._pendingData.length<10&&this._pendingData.push(t)}_onChannelBufferedAmountLow(){if(this.destroyed||!this._cb)return;const e=this._cb;this._cb=null,e(null)}_onChannelOpen(){this._connected||this.destroyed||(this._channelReady=!0,this._maybeReady())}_onChannelClose(){this.destroyed||this.destroy()}}Y.config={iceServers:[{urls:["stun:stun.l.google.com:19302","stun:global.stun.twilio.com:3478"]}],sdpSemantics:"unified-plan"},Y.channelConfig={};const J=Y;class Q{constructor(e,t,s,i,r=0){this.sn=e,this.segId=t,this.data=s,this.fromPeerId=i,this.level=r||0}static fromSegment(e){const t=new Q(e.sn,e.segId,e.data,e.fromPeerId,e.level);return t.from=e.from,t}get size(){return this.data.byteLength}get isSequential(){return this.sn>=0}}var K=s(365),Z=s.n(K);class ee extends(n()){static get defaultPacketSize(){return c}static get VERSION(){return"8"}constructor(e,t,s,i,r,n={}){super(),this.channel=e.fetcher.channelId,this.logger=e.logger,this.config=r,this.isInitiator=i,this.options=n,this.intermediator=n.intermediator||null,this.signalMsgs=[],this.assignPeerId(t,s),this.platform="unknown",this.super=!1,this.mobile=!1,this.mobileWeb=!1,this.mobileNet=!1,this.connected=!1,this.msgQueue=[],this.miss=0,this.notifySet=new Set,this.bufArr=[],this.packetSize=c,this.sendReqQueue=[],this.downloading=!1,this.uploading=!1,this.choked=!1,this.streamListeners=[],this.pieceMsg={},this.datasToSend=[],this.bytesUploaded=0,this.dataWriting=!1,this.timeSendRequest=0,this.timeReceivePiece=0,this.timeSendPiece=0,this.weight=0,this.peersConnected=1,this.uploadSpeed=0,this.currentLevel=0,this.currentPos=0,this.useBackupSignal=!1,this.gotPeersTS=0,this.webRTCConfig={};const{stuns:o}=this.options;if(o&&o.length>0){const e=[];o.forEach((t=>{this.logger.info(`use stun ${t}`),e.push({urls:t})})),this.webRTCConfig.iceServers=e}this.config.webRTCConfig&&(this.webRTCConfig={...this.config.webRTCConfig,...this.webRTCConfig}),this.playlistMap=new Map,this._initPeerChannel(),this.notFatalClosed=!1,this.startSN=Number.MAX_SAFE_INTEGER,this.endSN=-1,this._loadedBytes=0}assignPeerId(t,s){this.remotePeerId=s,this.channelId=this.isInitiator?`${t}-${s}`:`${s}-${t}`,s&&(this.timeJoin=f(),this.dataExchangeTs=this.timeJoin,this.gotStatsTs=this.timeJoin,this._startTimer()),setTimeout((()=>{this.signalMsgs.length>0&&this.emit(e.DC_SIGNAL_BATCH,this.signalMsgs)}),0)}_startTimer(){this.connTimeout=setTimeout((()=>{this.logger.warn(`dc ${this.channelId} connection timeout`),this.emit(e.DC_TIMEOUT)}),15e3)}get isAvailable(){return this.downloadNum<2&&!this.choked}get isAvailableUrgently(){return!this.downloading&&!this.choked}cancelDownload(t,s,i){return!(!i||!this.downloading)&&(!(this.bufSN>t)&&(!(this.streamListeners.length>0)&&(this.logger.info(`cancel download ${i} to ${this.remotePeerId} remain packets ${this.remainAttachments}`),this.timeReceivePiece=0,this.sendJson({event:e.DC_PIECE_CANCEL,sn:t,level:s,seg_id:i}))))}addStreamListener(e,t,s){this.streamListeners.push({handler:s,peerId:t})}removeStreamListener(e){this.streamListeners=this.streamListeners.filter((t=>t.peerId!==e||(t.handler(void 0,void 0,!0,"aborted by cancel"),!1)))}_initPeerChannel(){const t=new J({initiator:this.isInitiator,trickle:this.options.trickle||!1,config:this.webRTCConfig});this._datachannel=t,t.on("error",(t=>{let s=!0;(this.connected||this.notFatalClosed)&&(s=!1),this.emit(e.DC_ERROR,s)})),t.on("signal",(t=>{!this.useBackupSignal&&this.signalMsgs.length<10&&this.signalMsgs.push(t),this.emit(e.DC_SIGNAL,t)}));t.on("connect",(()=>{for(this.logger.info(`datachannel CONNECTED from ${this.intermediator?"peer":"server"} to ${this.remotePeerId}`),this.connected=!0,clearTimeout(this.connTimeout),this.signalMsgs=[],this.emit(e.DC_OPEN);this.msgQueue.length>0;){let e=this.msgQueue.shift();this.emit(e.event,e)}})),t.on("data",(t=>{const{logger:s}=this;if("string"==typeof t){let i=JSON.parse(t);if(!i)return void s.error("dc received string is null");if(!this.connected)return void this.msgQueue.push(i);let r,n=i.event;switch(r=n!==e.DC_PLAYLIST&&n!==e.DC_PEER_SIGNAL?`string: ${t}`:`event: ${n}`,s.debug(`datachannel receive ${r} from ${this.remotePeerId}`),n){case e.DC_HAVE:if(this.emit(i.event,i),!i.sn)return;this.config.live||(i.sn<this.startSN&&(this.startSN=i.sn),i.sn>this.endSN&&(this.endSN=i.sn));break;case e.DC_PIECE:this.downloading=!0,this.dataExchangeTs=f(),this.timeReceivePiece=performance.now(),this.pieceMsg=i,this._prepareForBinary(i.attachments,i.seg_id,i.sn,i.size),this.emit(i.event,i);break;case e.DC_PIECE_CANCEL:s.info(`send queue ${this.datasToSend.length}, uploading ${this.uploading}`),this.emit(i.event,i),this.sendMsgPieceAbort("transfer canceled",i.seg_id);break;case e.DC_PIECE_NOT_FOUND:this._sendNextReq()||(this.downloading=!1),this.emit(i.event,i);break;case e.DC_REQUEST:this._handleRequestMsg(i);break;case e.DC_PIECE_ACK:this._handlePieceAck(i.seg_id,i.size,i.miss);break;case e.DC_STATS:this._handleStats(i);break;case e.DC_PLAYLIST:this.config.sharePlaylist&&this._handlePlaylist(i);break;case e.DC_METADATA:this._handleMetadata(i);break;case e.DC_PIECE_ABORT:this.downloading&&(this._notifyDownloadListenersAbort("aborted by upstream peer"),this.emit(e.DC_PIECE_ABORT,i)),this.downloading=!1;break;case e.DC_CHOKE:s.info(`choke peer ${this.remotePeerId}`),this.choked=!0;break;case e.DC_UNCHOKE:s.info(`unchoke peer ${this.remotePeerId}`),this.choked=!1;break;case e.DC_CLOSE:this.emit(i.event,i.fatal||!1);break;default:this.emit(i.event,i)}}else{if(!t)return void s.error("datachannel on data is undefined!");if(!this.downloading)return void s.warn(`peer ${this.remotePeerId} not downloading, data size ${t.byteLength} pieceMsg ${JSON.stringify(this.pieceMsg)}`);this._handleBinaryMsg(t)}})),t.once("close",(()=>{this.emit(e.DC_CLOSE,!1)})),t.on("iceStateChange",((t,s)=>{this.connected&&"disconnected"===t&&(this.logger.warn(`${this.remotePeerId} disconnected`),this.emit(e.DC_DISCONNECT))}))}sendJson(t){if(!this.remotePeerId)return!1;t.event!==e.DC_PLAYLIST&&t.event!==e.DC_PEER_SIGNAL?this.logger.debug(`dc bufferSize ${this._datachannel.bufferSize} send ${JSON.stringify(t)} to ${this.remotePeerId}`):this.logger.debug(`dc send event ${t.event} to ${this.remotePeerId}`);const s=JSON.stringify(t);return s.length>c?(this.logger.error("string to send is too large"),!1):this.send(s,!1)}send(e,t=!0){return t?(this.datasToSend.push(e),this.dataWriting||this._sendDataSync(),!0):this.sendImmediately(e)}_sendDataSync(){if(!this._datachannel.connected||0===this.datasToSend.length)return void(this.dataWriting=!1);this.dataWriting=!0;const t=this.datasToSend.shift();t?("string"!=typeof t&&(this.bytesUploaded+=t.byteLength),this._datachannel.write(t,(t=>{if(t)return this.dataWriting=!1,this.logger.warn(t.message),void this.emit(e.DC_ERROR,!1);this._sendDataSync()}))):this.logger.error("sendDataSync data is undefined!")}sendImmediately(t){if(this._datachannel.connected)try{return this._datachannel.send(t),!0}catch(t){this.logger.warn(`datachannel ${this.channelId} send data failed, close it`),this.emit(e.DC_ERROR,!1)}return!1}sendMsgHave(t,s,i={}){const r=i.reverse||void 0;delete i.reverse,this.sendJson({event:r?e.DC_HAVE_REVERSE:e.DC_HAVE,sn:t,seg_id:s,...i})}sendPieceNotFound(t,s,i={}){this.uploading=!1,this.sendJson({event:e.DC_PIECE_NOT_FOUND,seg_id:s||void 0,sn:t,...i})}sendPeers(t){this.sendJson({event:e.DC_PEERS,peers:t})}sendPeersRequest(){this.sendJson({event:e.DC_GET_PEERS})}sendMsgStats(t,s={}){const i={event:e.DC_STATS,total_conns:t,...s};this.sendJson(i)}sendMsgPlaylist(t,s,i){const r=this.playlistMap.get(t);if(r&&r.seq>=i)return;const n={event:e.DC_PLAYLIST,url:t,data:s,seq:i};this.playlistMap.set(t,{data:s,seq:i}),this.sendJson(n)}sendMsgSignal(t,s,i){return this.sendJson({event:e.DC_PEER_SIGNAL,action:"signal",to_peer_id:t,from_peer_id:s,data:i})}sendMsgSignalReject(t,s,i,r=!1){return this.sendJson({event:e.DC_PEER_SIGNAL,action:"reject",to_peer_id:t,from_peer_id:s,reason:i,fatal:r})}sendMetaData(t,s,i,r,n=!1){this.isInitiator&&(this.timeSendRequest=performance.now()),this.sendJson({event:e.DC_METADATA,field:t,platform:e.DC_PLAT_WEB,mobile:!!Z().isMobile(),mobile_net:n,channel:this.channel,version:"2.11.3",sequential:s,peers:i,region:r})}sendPartialBuffer(e,t,s={}){this.sendMsgPiece(e,s);for(let e=0;e<t.length;e++)this.send(t[e])}sendMsgPiece(e,t={}){if(!this.uploading)return;this.datasToSend=[],this.bytesUploaded=0,e.ext||(e.ext={}),e.ext.from&&t.from&&(t.from=`${e.ext.from}->${t.from}`),t.incompletes&&e.ext.incompletes&&(t.incompletes+=e.ext.incompletes),t=Object.assign({},e.ext,t);const s={...e,ext:t};this.sendJson(s)}sendBuffer(t,s,i,r={}){const n=r.reverse||void 0;if(delete r.reverse,!i)return void this.logger.error("sendBuffer payload is undefined!");let o=i.byteLength,a=0,h=0;o%this.packetSize==0?h=o/this.packetSize:(h=Math.floor(o/this.packetSize)+1,a=o%this.packetSize);let l={event:e.DC_PIECE,attachments:h,seg_id:s,sn:t,level:r.level,size:o,reverse:n};delete r.level,this.sendMsgPiece(l,r);const c=function(e,t,s,i){let r=[];if(i){let n;for(let i=0;i<s-1;i++)n=e.slice(i*t,(i+1)*t),r.push(n);n=e.slice(e.byteLength-i,e.byteLength),r.push(n)}else{let i;for(let n=0;n<s;n++)i=e.slice(n*t,(n+1)*t),r.push(i)}return r}(i,this.packetSize,h,a);this._sendBufferArray(c,n),this.uploading=!1,this.timeSendPiece=performance.now()}get downloadNum(){return this.downloading?this.sendReqQueue.length+1:0}requestDataById(t,s,i=!1,r={}){const n={event:e.DC_REQUEST,seg_id:t,sn:s,...r,urgent:i};this.downloading?(this.logger.info(`${this.remotePeerId} add req ${t} in queue`),i?this.sendReqQueue.unshift(n):this.sendReqQueue.push(n)):this._realRequestData(n)}requestDataBySN(t,s=!1,i={}){const r={event:e.DC_REQUEST,sn:t,...i,urgent:s};this.downloading?(this.logger.info(`add req ${t} in queue`),s?this.sendReqQueue.unshift(r):this.sendReqQueue.push(r)):this._realRequestData(r)}_sendBufferArray(e,t=!1){const s=t?e.reverse():e;for(let e=0;e<s.length;e++)this.send(s[e])}_realRequestData(e){this.sendJson(e),this.timeSendRequest=performance.now(),this.downloading=!0}shouldWaitForRemain(e){return 0!==this.bufArrSize&&(0!==this.timeReceivePiece&&this.currentLoadSpeed()>=this.minRequiredSpeed(e))}close(t){t||(this.notFatalClosed=!0),this.emit(e.DC_CLOSE,t)}receiveSignal(e){e&&this._datachannel.signal(e)}_notifyDownloadListenersAbort(e){for(let t of this.streamListeners){const{handler:s}=t;s(void 0,void 0,!0,e)}this.streamListeners=[]}destroy(t=!0){this.logger.info(`destroy datachannel ${this.channelId}`),clearTimeout(this.chokeTimer),clearTimeout(this.connTimeout),this._notifyDownloadListenersAbort("upstream peer is closed");let s={event:e.DC_CLOSE,fatal:t};this.sendJson(s),this._datachannel.removeAllListeners(),this.removeAllListeners(),this._datachannel.destroy()}_handleBinaryMsg(t){const{attachments:s,reverse:i}=this.pieceMsg;this.listenerCount(e.DC_RESPONSE)>0&&this.bufArr.push(t),this._loadedBytes+=t.byteLength,this.remainAttachments--;let r=i?this.remainAttachments+1:s-this.remainAttachments;const n=0===this.remainAttachments;if(this.emit(e.DC_PIECE_DATA,this.bufSN,this.segId,t,r,n,this.pieceMsg),this.streamListeners.length>0)for(let e of this.streamListeners){const{handler:s}=e;s(this.bufSN,this.segId,!1,t,n)}if(n){if(this.streamListeners=[],this.timeSendRequest>0)if(this.super)this.weight=1;else{const e=this.expectedSize/(performance.now()-this.timeSendRequest);this.weight=this.weight>0?.6*this.weight+.4*e:e}this.sendJson({event:e.DC_PIECE_ACK,seg_id:this.segId,size:this.expectedSize,miss:this.miss||void 0}),this.timeSendRequest=0,this.timeReceivePiece=0,this._sendNextReq()||(this.downloading=!1),this._handleBinaryData(i)}}_sendNextReq(){if(this.sendReqQueue.length>0){const e=this.sendReqQueue.shift();return this.logger.info(`get msg from sendReqQueue ${JSON.stringify(e)}`),this._realRequestData(e),!0}return!1}_handlePlaylist(e){const{url:t,data:s,seq:i}=e;this.playlistMap.set(t,{data:s,seq:i})}getLatestPlaylist(e,t){if(!this.playlistMap.has(e))return null;const s=this.playlistMap.get(e);return s.seq<=t||s.seq>t+2?null:s}_handleMetadata(t){const{logger:s}=this;if(this.isInitiator){const e=performance.now()-this.timeSendRequest;e>0&&(this.weight=1e5/e,s.info(`handle Metadata from ${this.remotePeerId} initial weight ${this.weight}`)),this.timeSendRequest=0}const i=t.channel;if(this.channel!==i)return s.error(`peer channel ${i} not matched!`),void this.emit(e.DC_ERROR,!0);if(t.super){s.info(`got super peer ${this.remotePeerId}`),this.super=!0;const{token:i}=this.config;if(i&&t.token!==i)return s.warn(`super peer token ${t.token} not matched!`),void this.emit(e.DC_ERROR,!0)}t.region&&(this.region=t.region);switch(t.platform){case e.DC_PLAT_ANDROID:this.platform=e.DC_PLAT_ANDROID;break;case e.DC_PLAT_IOS:this.platform=e.DC_PLAT_IOS;break;case e.DC_PLAT_WEB:this.platform=e.DC_PLAT_WEB}if(this.mobile=t.mobile||!1,this.mobileNet=t.mobile_net||!1,this.mobileWeb=this.mobile&&this.platform===e.DC_PLAT_WEB||!1,this.sequential=t.sequential,s.info(`${this.remotePeerId} platform ${this.platform} sequential ${this.sequential}`),t.peers&&(this.peersConnected+=t.peers,s.info(`${this.remotePeerId} now has ${this.peersConnected} peers`)),this.emit(e.DC_METADATA,t),t.field&&!this.config.live&&t.sequential){const{field:e}=t;if(Array.isArray(e))this._handleField(e);else for(let t in e)this._handleField(e[t])}}_handleField(e){e.forEach((e=>{e>=0&&(e<this.startSN&&(this.startSN=e),e>this.endSN&&(this.endSN=e))}))}_handleStats(e){this.gotStatsTs=f();const t=e.total_conns;t>0&&this.peersConnected!==t&&(this.peersConnected=t,this.logger.info(`${this.remotePeerId} now has ${this.peersConnected} peers`)),e.level&&(this.currentLevel=e.level),e.pos&&(this.currentPos=e.pos)}_handleRequestMsg(t){if(this.dataExchangeTs=f(),this.uploading)return this.logger.warn(`${this.remotePeerId} is uploading when receive request`),void this.sendPieceNotFound(t.sn,t.seg_id,{level:t.level});this.uploading=!0,this.emit(e.DC_REQUEST,t)}_handlePieceAck(t,s,i){0!==this.timeSendPiece&&(this.uploadSpeed=Math.round(s/(performance.now()-this.timeSendPiece)*2),this.timeSendPiece=0,this.logger.info(`${this.remotePeerId} uploadSpeed is ${this.uploadSpeed}`)),i>0&&this.logger.warn(`peer ${this.remotePeerId} miss ${i}`),this.bytesUploaded>0&&this.emit(e.DC_PIECE_ACK,{seg_id:t,size:s})}_prepareForBinary(e,t,s,i){this.bufArr=[],this._loadedBytes=0,this.remainAttachments=e,this.segId=t,this.bufSN=s,this.expectedSize=i}_handleBinaryData(t=!1){if(this.listenerCount(e.DC_RESPONSE)>0){t&&this.bufArr.reverse();let s=o.h.concat(this.bufArr);const i=s.byteLength;if(i===this.expectedSize){let t=s.buffer;const i=new Q(this.bufSN,this.segId,t,this.remotePeerId,this.pieceMsg.level);this.emit(e.DC_RESPONSE,i,this.weight)}else this.logger.error(`${this.segId} expectedSize ${this.expectedSize} != byteLength ${i}`)}this.bufArr=[]}checkIfNeedChoke(e=!1){const{logger:t}=this,s=performance.now()-this.timeSendRequest;if((e||!(s<1500))&&(this.miss++,t.info(`${this.remotePeerId} miss ${this.miss}`),this.miss>2&&!this.choked)){this.choked=!0;const e=30*this.miss;e<=150?(t.warn(`datachannel ${this.channelId} is choked`),this.chokeTimer=setTimeout((()=>{this.choked=!1,t.warn(`datachannel ${this.channelId} is unchoked`)}),1e3*e)):t.warn(`datachannel ${this.channelId} is choked permanently`)}}get bufArrSize(){return this.downloading?this.pieceMsg.attachments-this.remainAttachments:0}loadtimeout(){const{logger:e,pieceMsg:t}=this;return e.warn(`timeout while downloading from ${this.remotePeerId}, ${this.bufArrSize} of ${t.attachments} packets loaded`),this.checkIfNeedChoke(),!0}sendMsgPieceAbort(t,s,i=!1){if(!i&&!this.uploading&&0===this.datasToSend.length)return;this.uploading=!1,this.datasToSend=[],this._handlePieceAck(s,this.bytesUploaded,0),this.bytesUploaded=0;const r={event:e.DC_PIECE_ABORT,reason:t};return this.sendJson(r)}loadedBytes(){return this._loadedBytes}currentLoadSpeed(){return 0===this.timeReceivePiece?0:this.loadedBytes()/(performance.now()-this.timeReceivePiece)}minRequiredSpeed(e){return(this.pieceMsg.size-this.loadedBytes())/e}}const te=ee,se={DPlayer:"dplayer",CBPlayer:"cbplayer",jwplayer:"jwplayer",videojs:"videojs",Clappr:"clappr",ckplayer:"ckplayer",MediaElementPlayer:"mediaelement",MediaElement:"mediaelement",TcPlayer:"tcplayer",flowplayer:"flowplayer",Chimee:"chimee",ChimeePlayer:"chimee",HlsJsPlayer:"xgplayer",fluidPlayer:"fluidplayer",OpenPlayer:"openplayer",Plyr:"plyr",Playerjs:"playerjs",Aliplayer:"aliplayer",shaka:"shakaplayer",RadiantMP:"rmp",bitmovin:"bitmovin"};function ie(){let e;for(let t in se)if(self[t]){e=se[t];break}return e}const re="nllL",ne="d3NzJ",oe="==",ae="TNBLy9z",he="aWduY",le="mNvbQ",ce="WwuY2RuY",de={[e.EXCEPTION]:"onException",serverConnected:"onServerConnected",peerId:"getPeerId",p2pDownloaded:"onP2pDownloaded",p2pUploaded:"onP2pUploaded",httpDownloaded:"onHttpDownloaded",peers:"getPeersInfo"};class ue extends(n()){constructor(e={}){if(super(),this.p2pEnabled=!(!1===e.p2pEnabled||"0"===u("_p2p")),e.tag&&e.tag.length>20)throw new Error("Tag is too long");if(e.appName&&e.appName.length>30)throw new Error("appName is too long");if(e.appId&&e.appId.length>30)throw new Error("appId is too long");if(e.token&&e.token.length>20)throw new Error("Token is too long");this.segmentLoadCount=0}initLogger(){const{config:e}=this;e.showSlogan&&"en"==("zh-CN"===(navigator.language||navigator.userLanguage)?"cn":"en")&&console.log(`%cLet the browsers become your unlimitedly scalable CDN!\n%c${self.atob("aHR0cHM6Ly9zd2FybWNsb3VkLm5ldA==")}`,"color: dodgerblue; padding:20px 0; font-size: x-large","font-size: medium; padding-bottom:15px");const t=new H(e.logLevel);return e.logger=this.logger=t,t}getExtraForStats(){return{}}getExtraForPeersRequest(){const e={};return e.num_want=this._getNumWant(),e}_getNumWant(){const{tracker:e}=this;if(!e.scheduler)return;const t=e.scheduler.peersNum;return t>0&&e.maxConnsActive-t>0?e.maxConnsActive-t:void 0}makeChannelId(e,t){if(!e||"string"!=typeof e){const e="token is required while using customized 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t=["iPad","iPhone"].indexOf(navigator.platform)>=0?"pagehide":"beforeunload",s=()=>{this.fetcher&&this.fetcher.postStatsWithBeacon(),this.p2pEnabled&&this.disableP2P(),self.removeEventListener(t,s)};e?self.removeEventListener(t,s):self.addEventListener(t,s)}destroy(){this.disableP2P(!0),this.removeAllListeners(),this.setupWindowListeners(!0)}enableP2P(){return this.p2pEnabled?null:(this.logger&&this.logger.info("enable P2P"),this.config.p2pEnabled=this.p2pEnabled=!0,this.browserInfo?(this._init(this.channel,this.browserInfo),this):null)}get version(){return ue.version}static isSupported(){const e=_();return!(!e||void 0===e.RTCPeerConnection.prototype.createDataChannel)}static get TrackerZone(){return{EU:"eu",HK:"hk",USA:"us"}}determineHttpLoadTime(e,t){let s=3.5;return t<=2?s=1:t<=3?s=1.5:t<=4?s=2:t<=6?s=2.5:t<=8&&(s=3),s}emitEvent(e,...t){this.emit(e,...t);const s=de[e];s&&I(this.config[s])&&this.config[s](...t)}}ue.version="2.11.3",ue.protocolVersion=te.VERSION;const ge=ue;function 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h=Math.floor(s/n),l=s%n>0?h+1:h;if(e>=0&&(o+=(e+1)*n),t>=0&&t<l){a-=s%n+(l-t-1)*n}return{rangeStart:o,rangeEnd:a+1}}function Se(e,t){return`${e}-${t}`}function ye(e,t,s,i){let r=s.split("?")[0];return r.startsWith("http")&&(r=r.split("://")[1]),i?`${r}|${i}`:`${r}`}function ve(e,t){return"number"!=typeof t&&(t=Number(t)),`${t}-${e}`}let Pe={wsMaxRetries:10,p2pEnabled:!0,wifiOnly:!1,memoryCacheLimit:{pc:419430400,mobile:104857600},dcDownloadTimeout:25,logLevel:"error",tag:"",webRTCConfig:{},token:void 0,appName:void 0,appId:void 0,prefetchNum:4,showSlogan:!0,trickleICE:!0,announceLocation:"eu",trackerZone:void 0,geoIpPreflight:!0,ICEPreflight:!0,useDiskCache:!0,startFromSegmentOffset:0,getStats:function(e,t,s){},getPeerId:function(e){},getPeersInfo:function(e){}};const Ee={...Pe,httpLoadTime:0,sharePlaylist:!1,useHttpRange:!0,hlsjsInstance:null,proxyOnly:!1,proxyFirst:!1,p2pBlackList:["vtt","webvtt","key"],live:!0,swFile:"./sw.js",swScope:"./",swAutoRegister:!0,mediaElem:void 0,httpStreamEnabled:!0,diskCacheLimit:{pc:1572864e3,mobile:1048576e3},waitForPeer:!1,waitForPeerTimeout:4,strictSegmentId:!1,prefetchOnly:!1},be="store not init",we=1e3;function Ce(e){const t=new Promise(((t,s)=>{e.oncomplete=e.onsuccess=()=>t(e.result),e.onabort=e.onerror=()=>s(e.error)})),s=(i=we,r="indexedDB timeout",new Promise(((e,t)=>setTimeout((()=>{t(r)}),i))));var i,r;return Promise.race([t,s])}function Ie(e,t){return t?t("readonly",(t=>Ce(t.get(e)))):Promise.reject(be)}function Le(e,t,s){return s?s("readwrite",(s=>(s.put(t,e),Ce(s.transaction)))):Promise.reject(be)}function Te(e,t){return t?t("readwrite",(t=>(t.delete(e),Ce(t.transaction)))):Promise.reject(be)}function Re(e){return e?e("readwrite",(e=>(e.clear(),Ce(e.transaction)))):Promise.reject(be)}function Ae(e,t){return e.openCursor().onsuccess=function(){this.result&&(t(this.result),this.result.continue())},Ce(e.transaction)}const De="size";class Me extends(n()){constructor(e,t){super(),this.name="SegmentStore",this.logger=t.logger,this.logger.info(`use ${this.name}`),this.engine=e,this.channel=e.channel;const s=e.browserInfo.device;this.isPC=s===Z().device.PC_WEB||s===Z().device.PC_NATIVE,this.maxBufSize=this.isPC?t.diskCacheLimit.pc:t.diskCacheLimit.mobile,this.overflowed=!1,this.countErrors=0,this.isCleared=!0,this.destroyed=!1}async setupStore(){if(navigator.storage&&navigator.storage.estimate){const e=await navigator.storage.estimate(),t=Math.floor(e.quota-e.usage);t<this.maxBufSize&&(this.maxBufSize=t-104857600)}return new Promise((async(e,t)=>{if(this.isPC&&this.maxBufSize<419430400||!this.isPC&&this.maxBufSize<104857600)return void t("disk storage not enough");const s=this.stores;let i;try{i=function(e,t){const s=indexedDB.open(e);s.onupgradeneeded=()=>{const e=s.result;t.forEach((t=>{e.createObjectStore(t)}))};const i=Ce(s);return t.map((e=>(t,s)=>i.then((i=>s(i.transaction(e,t).objectStore(e))))))}(this.channel,s)}catch(e){return void t(e)}this._createStores(i),this._initMetaStore().then((()=>{e()})).catch((e=>{t(e)}))}))}_initMetaStore(){return Le(De,0,this.metaStore)}currBufSize(){return new Promise((async(e,t)=>{try{const s=await Ie(De,this.metaStore);if(isNaN(s))return void t("size is NaN");e(s)}catch(e){t(e)}}))}async putSeg(t){if(this.destroyed)return;this.isCleared=!1;const{logger:s}=this;if(E(t.data))return new Promise((i=>{this._addSeg(t).then((t=>{this._onSegPut(t),this.emit(e.BM_SEG_ADDED,t),i()})).catch((t=>{this._handleFataError(),t&&(s.warn(`putSeg ${t}`),("QuotaExceededError"===t.name||t.inner&&"QuotaExceededError"===t.inner.name)&&this.currBufSize().then((e=>{this._trimDisk(e,!0)})).catch((t=>{this.logger.error(`putSeg ${t}`),this.engine.emit(e.BM_FATAL_ERROR)}))),i()}))}));s.error(`putSeg ${t.segId} is not buffer`)}_handleFataError(){this.countErrors++,this.countErrors>=3&&(this.engine.emit(e.BM_FATAL_ERROR),this.countErrors=0)}_decreaseBufSize(e){this.currBufSize().then((t=>{t&&Le(De,t-e,this.metaStore)})).catch((e=>{this.logger.warn(`decreaseBufSize ${e}`)}))}_increaseBufSize(t){this.destroyed||this.currBufSize().then((e=>{Le(De,e+t,this.metaStore),this._trimDisk(e+t)})).catch((t=>{this.logger.warn(`increaseBufSize ${t}`),this.engine.emit(e.BM_FATAL_ERROR)}))}clear(e=!1){if(!this.isCleared){this.logger.warn("clear segment store");try{this._clearDisk(e)}catch(e){}this.isCleared=!0}}_clearDisk(e){Re(this.segmentsStore),e?this._initMetaStore():Re(this.metaStore),this.overflowed=!1}destroy(){this.clear(),this.removeAllListeners(),this.destroyed=!0}}const Ne=Me;const Oe=class extends Ne{constructor(e,t){super(e,t),this.loadingSN=-1,this.stores=["segments","id2Sn","metadata"]}_createStores(e){this.segmentsStore=e[0],this.id2SnStore=e[1],this.metaStore=e[2]}async hasSegOfId(e){if(!e)return Promise.resolve(!1);let t;try{t=await Ie(e,this.id2SnStore)}catch(e){return Promise.resolve(!1)}return new Promise((s=>{void 0!==t?Ie(t,this.segmentsStore).then((t=>{t&&t.length>0&&t.some((t=>t.segId===e))?s(!0):s(!1)})).catch((e=>{this.logger.warn(`hasSegOfId ${e}`),s(!1)})):s(!1)}))}async getSegById(e){if(!e)return null;const{logger:t}=this;let s;try{s=await Ie(e,this.id2SnStore)}catch(e){return null}return new Promise((i=>{void 0!==s?Ie(s,this.segmentsStore).then((s=>{if(s&&s.length>0){const r=s.find((t=>t.segId===e));if(!r)return void i(null);if(!E(r.data))return t.error(`getSegById ${r.sn} is not buffer`),void i(null);i(Q.fromSegment(r))}else i(null)})).catch((e=>{t.warn(`getSegById ${e}`),this._handleFataError(),i(null)})):i(null)}))}getSegIdBySN(e){return new Promise((t=>{Ie(e,this.segmentsStore).then((e=>{e&&e.length>0?t(e[0].segId):t(null)})).catch((e=>{this.logger.warn(`getSegIdBySN ${e}`),t(null)}))}))}_addSeg(e){const{segId:t,sn:s,size:i}=e;return Le(t,s,this.id2SnStore),new Promise(((r,n)=>{Ie(s,this.segmentsStore).then((o=>{o?0===o.filter((e=>e.segId===t)).length?(o.push(this._segmentToCache(e)),Le(s,o,this.segmentsStore).then((()=>{this._increaseBufSize(i),r(e)})).catch((e=>{n(e)}))):r(e):Le(s,[this._segmentToCache(e)],this.segmentsStore).then((()=>{this._increaseBufSize(i),r(e)})).catch((e=>{n(e)}))})).catch((e=>{n(e)}))}))}async _trimDisk(t,s=!1){if(this.isCleared||this.destroyed)return;let i=this.maxBufSize;const{logger:r}=this;var n;(s&&(i=t-104857600,i<0&&(i=0)),t<i)||(r.warn(`_trimDisk currentSize ${t} upBound ${i}`),(n=this.segmentsStore,n?n("readonly",(e=>{if(e.getAllKeys)return Ce(e.getAllKeys());const t=[];return Ae(e,(e=>t.push(e.key))).then((()=>t))})):Promise.reject(be)).then((async s=>{const n=s.sort(((e,t)=>e-t));let o=0;do{if(o++>10){r.warn("too much loops in SegmentStore");break}const s=n.shift();if(void 0===s){r.warn("lastSN not found");continue}if(s>=this.loadingSN){r.warn(`trimDisk failed, loadingSN ${this.loadingSN}`);break}const i=n[0],a=await Ie(s,this.segmentsStore);if(!a){r.warn("lastSeg not found");continue}let h=0;a.forEach((e=>{h+=e.data.byteLength})),Te(s,this.segmentsStore).then((()=>{this._decreaseBufSize(parseInt(h))})),a.forEach((t=>{Te(t.segId,this.id2SnStore),r.info(`pop seg ${t.segId} size ${t.data.byteLength}`),this.emit(e.BM_LOST,{sn:s,segId:t.segId,next:i,level:t.level})})),t-=h,r.info(`pop sn ${s} size ${h} currBufSize ${t}`),this.overflowed||(this.overflowed=!0)}while(t>=i)})))}_segmentToCache(e){return{data:e.data,level:e.level,segId:e.segId,sn:e.sn}}_onSegPut(t){this.emit(`${e.BM_ADDED_SN_}${t.sn}`,t)}_clearDisk(e){try{super._clearDisk(e)}catch(e){}Re(this.id2SnStore).catch((e=>{}))}};class ke extends(n()){constructor(e,t){super(),this.name="SegmentCache",this.logger=t.logger,this.logger.info(`use ${this.name}`);const s=e.browserInfo.device;if(this.maxBufSize=s===Z().device.PC_WEB||s===Z().device.PC_NATIVE?t.memoryCacheLimit.pc:t.memoryCacheLimit.mobile,this.isLive=t.live,this.isLive)this.maxBufSize=47185920;else{if(0===this.maxBufSize)throw new Error("cannot use SegmentCache");const e=function(){const{memory:e}=performance;return e?e.jsHeapSizeLimit-e.usedJSHeapSize:-1}();e>=0&&e<this.maxBufSize&&(this.maxBufSize=e-31457280)}this._segPool=new Map,this._currBufSize=0,this.overflowed=!1,this.isCleared=!0,this.destroyed=!1}get currBufSize(){return this._currBufSize}_calSegPoolSize(){let e=0;return this._segPool.forEach((t=>{t.forEach((t=>{e+=t.size}))})),e}async putSeg(e){this.destroyed||(this.isCleared=!1,this._currBufSize>=1.5*this.maxBufSize&&(this._currBufSize=this._calSegPoolSize(),this._currBufSize>=1.5*this.maxBufSize&&(this.clear(),this.overflowed=!1)),E(e.data)?this._addSeg(e):this.logger.error(`putSeg ${e.segId} is not buffer`))}clear(){this.isCleared||(this.logger.warn("clear segment cache"),this._segPool.clear(),this._currBufSize=0,this.isCleared=!0,this.overflowed=!1)}destroy(){this.clear(),this.removeAllListeners(),this.destroyed=!0}}const $e=ke;const Be=class extends $e{constructor(e,t){super(e,t),this.id2Sn=new Map,this.loadingSN=-1}hasSegOfId(e){return new Promise(((t,s)=>{const i=this.id2Sn.get(e);this._segPool.has(i)?t(this._segPool.get(i).some((t=>t.segId===e))):t(!1)}))}getSegById(e){const t=this.id2Sn.get(e);return new Promise(((s,i)=>{if(!this._segPool.has(t))return void s(null);s(this._segPool.get(t).find((t=>t.segId===e)))}))}getSegIdBySN(e){return new Promise(((t,s)=>{if(this._segPool.has(e)){t(this._segPool.get(e)[0].segId)}else t(null)}))}_addSeg(t){const{logger:s}=this,{segId:i,sn:r,size:n}=t;if(this.id2Sn.set(i,r),this._segPool.has(r)){this._segPool.get(r).push(t)}else this._segPool.set(r,[t]);this._currBufSize+=parseInt(n);const o=this._segPool.size;if(this.emit(`${e.BM_ADDED_SN_}${t.sn}`,t),this.emit(e.BM_SEG_ADDED,t),this._currBufSize<this.maxBufSize||o<=5)return;let a=Array.from(this._segPool.keys());this.isLive||(a=a.sort(((e,t)=>e-t)));let h=0;do{if(h++>10){s.error("too much loops in SegmentCache");break}const t=a.shift();if(void 0===t){s.error("lastSN not found");continue}const i=a[0],r=this._segPool.get(t);if(!r){s.error("lastSeg not found");continue}let n=0;r.forEach((e=>{n+=e.size})),this._currBufSize-=parseInt(n),this._segPool.delete(t),r.forEach((s=>{this.id2Sn.delete(s.segId),this.emit(e.BM_LOST,{sn:t,segId:s.segId,next:i,level:s.level})})),s.info(`pop sn ${t} size ${n} currBufSize ${this._currBufSize}`),this.overflowed||(this.overflowed=!0)}while(this._currBufSize>=this.maxBufSize&&this._segPool.size>5)}clear(){super.clear(),this.id2Sn.clear()}};var xe=s(832),Fe=s.n(xe),qe=s(333),We=s.n(qe);class ze{constructor(){this.p2p=0,this.share=0,this.http=0}recordP2p(e){this.p2p+=e}recordShare(e){this.share+=e}recordHttp(e){this.http+=e}resetTraffic(){this.p2p=0,this.share=0,this.http=0}get healthRatio(){if(0===this.http)return 1e3;let e=Math.round((this.p2p+this.share)/this.http*100);return e<=0&&(e=1),e}}const Ue="SW_GEOIP_KEY",He=2592e5,Ge=432e5,je="TRACKER_EXPT",Ve="IPAPI_ERROR",Xe="ZXU",Ye="uY2R",Je="LmNv",Qe="uYnll",Ke="bQ==",Ze="aGsuc3d",et="hcm1j",tt="bG91ZC",st="5uZXQ=",it=Symbol("httpDownloaded"),rt=Symbol("p2pDownloaded"),nt=Symbol("p2pUploaded");class ot extends(n()){constructor(e,t,s,i,r){let n;super(),this.config=e.config;let o=this.config.announceLocation;switch(this.config.trackerZone&&(o=this.config.trackerZone),o){case"hk":n=Ze+et+tt+st;break;case"us":n="dXMuaGR0dmNsb3VkLmNvbQ==";break;default:n=Xe+Ye+Qe+Je+Ke}this.engine=e,this.key=t||void 0,this.baseUrl=i||`https://${self.atob(n)}/v1`,this.channelId=self.btoa(s),this.timestamp=f(),this.health=new ze;const a=h().parseURL(this.baseUrl).netLoc;this.announce=a.replace(/\/\//,"");const l=function(e,t,s,i,r,n){let o=location.hostname;"localhost"===o&&n&&(o=`${n}.${o}`);function a(e,t,s,i,r,n){return Fe()(e+t+s+i+r,n)}const h=a(o,t,s,i,r,e).substr(0,8);return h}(this.timestamp,"2.11.3",this.announce,this.channelId,r.type,this.key);this.native=!!r.bundle,this.announceInfo={...r,channel:this.channelId,ts:this.timestamp,version:"2.11.3",v:l,announce:this.announce,k:ht(this.key)},this.announceURL=`${this.baseUrl}/channel`,this.reportFails=0,this.statsRequesting=!1,this.forbidden=!1,this.failConns=0,this.totalHTTPDownloaded=0,this.totalP2PDownloaded=0,this.totalP2PUploaded=0,this[it]=0,this[rt]=0,this[nt]=0,this.speed=0,this.offline=!1,this.errsBufStalled=0,this.mediaRequests=0,this.errsInternalExpt=0}geoipRequest(){const{logger:e}=this.engine;return new Promise(((t,s)=>{if((e=>{const t=localStorage.getItem(e);try{const e=JSON.parse(t);return!(!e.duration||!e.startTime)&&Date.now()-e.startTime<e.duration}catch(e){return!1}})(Ue)){const s=W(Ue);e.info("found local geo data"),t(s)}else fetch(self.atob("aHR0cHM6Ly9wcm8uaXAtYXBpLmNvbS9qc29uP2ZpZWxkcz0yMTgxODI2JmtleT1YT3BpYW5zUmdZeEdUaG8=")).then((e=>e.json())).then((e=>{if("success"!==e.status){const t=new Error(`preflight status ${e.status}`);throw We()(t,Ve)}{const s=e.mobile?Ge:He;z(Ue,e,s),t(e)}})).catch((e=>{s(e)}))}))}btAnnouncePreflight(){const{logger:e}=this.engine;return this.announceInfo.asn?this.btAnnounce():(e.info("preflight ip-api"),Promise.race([this.geoipRequest(),new Promise(((e,t)=>{setTimeout((()=>{t(We()(new Error("request timeout"),Ve))}),600)}))]).then((e=>(this._parseGeoResponse(e),this.btAnnounce()))).catch((t=>{if(t.code!==je){const t=W(Ue);return t&&(e.info("use expired ipData"),this._parseGeoResponse(t)),this.btAnnounce()}throw t})))}_parseGeoResponse(e){const{lat:t,lon:s,isp:i,as:r,mobile:n,countryCode:o,continentCode:a}=e;n&&(this.announceInfo.netType="cellular");const h=r.split(" ")[0].substr(2);this.announceInfo={...this.announceInfo,lat:t,lon:s,isp:i,asn:h,country:o}}btAnnounce(){const{logger:e}=this.engine;return new Promise(((t,s)=>{fetch(this.announceURL,{headers:this._requestHeader,method:"POST",body:JSON.stringify(this.announceInfo)}).then((e=>{if(!e.ok){const t=e.status>=500&&e.status<600;throw We()(new Error(`server response code is ${e.status}`),je,{retry:t})}return e.json()})).then((e=>{if(!this.engine)throw We()(new Error("runtime error"),je,{retry:!1});const s=e.data;if(s.f&&(this.forbidden=!0),-1===e.ret){const{code:t,msg:s}=e.data;throw We()(new Error(s),je,{retry:t>=5e3})}if(s.info&&console.info(`${s.info}`),s.warn&&console.warn(`${s.warn}`),s.min_conns||(s.min_conns=8),(!s.rejected||s.rejected&&s.share_only)&&s.id&&s.report_interval&&s.peers){if(this.peerId=this.id=s.id,s.report_interval<20&&(s.report_interval=20),this.btStats(s.report_interval),this.getPeersURL=`${this.baseUrl}/channel/${this.channelId}/node/${this.peerId}/peers`,this.statsURL=`${this.baseUrl}/channel/${this.channelId}/node/${this.peerId}/stats`,!this.announceInfo.asn&&s.asn){const{country:e,asn:t,mobile:i,isp:r,lat:n,lon:o}=s;this.announceInfo={...this.announceInfo,country:e,asn:t},z(Ue,{countryCode:e,as:`AS${t}`,mobile:i,isp:r,lat:n,lon:o,status:"success"},i?Ge:He)}t(s)}else this.engine&&(this.engine.p2pEnabled=!1)})).catch((t=>{e.error(`btAnnounce error ${t}`);const i=t.code||je,r=!t.code||t.retry;s(We()(t,i,{retry:r}))}))}))}btStats(e=10){this.heartbeater=setInterval((()=>{this.postStats()}),1e3*e)}postStatsWithBeacon(){if(this.offline)return;this.offline=!0;let e={off:!0};this.statsRequesting||(e={...e,...this._makeStatsBody()}),this.statsURL&&navigator.sendBeacon&&navigator.sendBeacon(this.statsURL,JSON.stringify(e))}postStats(){const{logger:t}=this.engine;this.statsRequesting=!0,fetch(this.statsURL,{method:"POST",body:JSON.stringify(this._makeStatsBody())}).then((e=>(this.statsRequesting=!1,this.reportFails=0,e.text()))).then((s=>{let i;if(i=s?JSON.parse(s):{ret:0,data:{}},-1===i.ret)clearInterval(this.heartbeater),t.error(`${i.data.msg} code ${i.data.code}`),this.engine.emit(e.RESTART_P2P);else{const{http:e=0,p2p:t=0,share:s=0,failConns:i=0,rebuffers:r=0,requests:n=0,errsInternalExpt:o=0}=this.lastStats||{};this[it]>=e&&(this[it]-=e),this[rt]>=t&&(this[rt]-=t),this[nt]>=s&&(this[nt]-=s),this.failConns>=i&&(this.failConns-=i),this.errsBufStalled>=r&&(this.errsBufStalled-=r),this.mediaRequests>=n&&(this.mediaRequests-=n),this.errsInternalExpt>=o&&(this.errsInternalExpt-=o),this.exptMsg&&(this.exptMsg=void 0)}})).catch((e=>{t.error(`btStats error ${e}`),this.statsRequesting=!1,this.reportFails++,this.reportFails>=3&&clearInterval(this.heartbeater)}))}btGetPeers(e,t=!1){const{logger:s}=this.engine,{asn:i,country:r}=this.announceInfo;let n={exclusions:e,asn:i,country:r,ratio:this.health.healthRatio,urgent:t||void 0},o={};return this.engine.getExtraForPeersRequest&&(o=this.engine.getExtraForPeersRequest()),n=Object.assign({},n,o),new Promise(((e,t)=>{this.reportFails>=3?t(new Error("reportFails >= 3")):fetch(this.getPeersURL,{headers:this._requestHeader,method:"POST",body:JSON.stringify(n)}).then((e=>e.json())).then((s=>{-1===s.ret?t(s.data.msg):e(s.data)})).catch((e=>{s.error(`btGetPeers error ${e}`),t(e)})).finally((()=>{this.health.resetTraffic()}))}))}increFailConns(){this.failConns++}increRebuffers(){this.errsBufStalled++}increMediaRequests(){this.mediaRequests++,this.engine.emit(e.MEDIA_REBUFFER,this.errsBufStalled>=2)}reportFlow(e){const t=Math.round(e/1024);this.engine.emitEvent("httpDownloaded",t),this[it]+=t,this.totalHTTPDownloaded+=t,this.health.recordHttp(t),this._emitStats()}reportDCTraffic(e,t){const s=Math.round(e/1024);this[rt]+=s,this.totalP2PDownloaded+=s,this.health.recordP2p(s),this.speed=Math.round(t),this.engine.emitEvent("p2pDownloaded",s,this.speed),this._emitStats()}reportUploaded(e=0){const t=Math.round(e/1024);this.engine.emitEvent("p2pUploaded",t),this.totalP2PUploaded+=t,this.health.recordShare(t),this[nt]+=t,this._emitStats()}destroy(){const{logger:e}=this.engine;e.warn("destroy fetcher"),this.removeAllListeners(),clearInterval(this.heartbeater)}_emitStats(){const{totalHTTPDownloaded:e,totalP2PDownloaded:t,totalP2PUploaded:s}=this;this.engine.emit("stats",{totalHTTPDownloaded:e,totalP2PDownloaded:t,totalP2PUploaded:s,p2pDownloadSpeed:this.speed});const{getStats:i}=this.config;I(i)&&i(t,s,e,this.speed)}_makeStatsBody(){const{asn:e,country:t}=this.announceInfo;let s={totalConns:this.engine.tracker.totalConns,failConns:this.failConns,rebuffers:this.errsBufStalled||void 0,requests:this.mediaRequests||void 0,errsInternalExpt:this.errsInternalExpt,http:Math.round(this[it])||0,p2p:Math.round(this[rt])||0,share:Math.round(this[nt])||0,asn:e,country:t},i={};this.engine.getExtraForStats&&(i=this.engine.getExtraForStats()),s=Object.assign({},s,i),this.lastStats=JSON.parse(JSON.stringify(s)),Object.keys(s).forEach((e=>{0===s[e]&&delete s[e]}));const{logger:r}=this.engine;return r.isDebugLevel&&r.info(`report ${JSON.stringify(s)}`),this.exptMsg&&(s.exptMsg="2.11.3 "+this.exptMsg),s}get _requestHeader(){let e={};return this.native&&(e={...e,"X-SW-Key":ht(this.key),"User-Agent":"electron","X-SW-ID":this.announceInfo.bundle}),e}}const at=ot;function ht(e){if(!e)return;const t="C@K<#q";let s="";for(let i=0;i<e.length;i++){const r=e.charCodeAt(i)^t.charCodeAt(i%6);s+=String.fromCharCode(r)}return self.btoa(s)}class lt extends(n()){constructor(e,t){super(),this.logger=e,t.startsWith("wss")?this.addr=t.replace("wss","https"):t.startsWith("ws")&&(this.addr=t.replace("ws","http")),this.connected=!1,this.retryCount=0,this.closed=!1,this.msgQueue=[],this.posting=!1}start(){this.closed=!1,this._hello((()=>{this._longPolling()}))}_hello(e){fetch(this.addr+"&hello",{method:"POST"}).then((e=>{if(!e.ok)throw new Error("hello response was not ok");return e.json()})).then((t=>{this.connected=!0,e(),this.onopen&&this.onopen(t.ver)})).catch((e=>{this.closed=!0,this.onerror&&this.onerror(e)}))}send(e){this.msgQueue.push(e),this.posting||this._realSend([...this.msgQueue])}_realSend(e){0!==e.length&&(this.posting=!0,this.msgQueue=[],fetch(this.addr,{method:"POST",body:JSON.stringify(e)}).then((()=>{this.posting=!1,this.msgQueue.length>0&&this._realSend([...this.msgQueue])})).catch((e=>{this.logger.error(e),this.posting=!1})))}close(){this.connected&&(this.closed=!0,this.connected=!1,this.abortController&&(this.abortController.abort(),this.abortController=null),this.onclose&&this.onclose())}destroy(){this.close(),this.removeAllListeners()}_longPolling(){if(this.closed)return;this.abortController=new AbortController;const e=this.abortController.signal;fetch(this.addr,{signal:e}).then((e=>{if(!e.ok)throw new Error("polling response was not ok");return e.text()})).then((e=>{e&&this.onmessage&&this.onmessage(JSON.parse(e)),this.retryCount=0,this._longPolling()})).catch((e=>{this.connected&&(this.retryCount<=3?(this.retryCount++,this._longPolling()):(this.connected=!1,this.onerror&&this.onerror(e)))}))}}const ct=class{constructor(e,t,s,i="main"){this.logger=e,this.config=t,this.wsAddr=s,this.serverVersion=0,this.pingInterval=95e3,this.name=i,this.normalClosed=!1,this.lastSendTs=performance.now(),this.pollingClient=new lt(e,s);try{this._ws=this._init()}catch(t){e.error(t),this._startPolling()}}get batchSupported(){return this.serverVersion>=50}_init(){const e={maxRetries:this.config.wsMaxRetries,minReconnectionDelay:p(1e4,6e4),maxReconnectionDelay:6e5,maxEnqueuedMessages:20,connectionTimeout:7e3};let t=new x(this.wsAddr,void 0,e);return t.addEventListener("open",(()=>{this.logger.info(`signal ${this.name} ${this.wsAddr} connection opened`),this.normalClosed=!1,this.pollingClient.connected?this.pollingClient.close():this.onopen&&this.onopen(),this._startPing(this.pingInterval)})),t.push=t.send,t.send=e=>{this.lastSendTs=performance.now();let s=JSON.stringify(e);t.push(s)},t.addEventListener("message",(e=>{let t=e.data;const s=JSON.parse(t),i=s.action;if("pong"!==i){if("ver"!==i)return"close"===i?(this.logger.warn(`server close signal ${this.name} reason ${s.reason}`),void this.close()):void(this.onmessage&&this.onmessage(s,this.name));this.serverVersion=s.ver}else clearTimeout(this.pongTimer)})),t.addEventListener("close",(e=>{this.logger.warn(`signal ${this.name} ${this.wsAddr} closed ${e.code} ${e.reason}`),e.code>=5e3||e.code<4e3?(this.onclose&&this.onclose(),this._stopPing()):this.close()})),t.addEventListener("error",(e=>{this._stopPing(),this.onerror&&this.onerror(e),this._startPolling()})),t}_startPolling(){this.pollingClient.connected||(this.logger.info("start polling"),this.pollingClient.start(),this._setupPolling(this.pollingClient))}sendSignal(e,t){const s={action:"signal",to_peer_id:e,data:t};this._send(s)}sendSignalBatch(e,t){if(this.batchSupported&&t.length>1)this._send({action:"signals",to_peer_id:e,data:t});else for(let s of t)this.sendSignal(e,s)}sendReject(e,t,s){const i={action:"reject",to_peer_id:e,reason:t,fatal:s};this._send(i)}_send(e){this.pollingClient.connected?this.pollingClient.send(e):this._ws&&this._ws.send(e)}_startPing(e){this.connected&&(this.pingTimer=setTimeout((()=>{const e=95e3-(performance.now()-this.lastSendTs);if(e>=0)return this._startPing(e);const t={action:"ping"};this._ws&&this._ws.push(JSON.stringify(t)),this.serverVersion>=22&&this._waitForPong(),this._startPing(this.pingInterval)}),e))}_waitForPong(){this.pongTimer=setTimeout((()=>{this.logger.warn(`signal ${this.name} wait for pong timeout, reconnect`),this.close(),this.reconnect()}),15e3)}_stopPing(){clearTimeout(this.pingTimer),clearTimeout(this.pongTimer)}close(){this.logger.info(`close signal ${this.name}`),this._stopPing(),(()=>{this._ws&&this._ws.close(1e3,"normal close")})(),this.pollingClient.close(),this.normalClosed=!0}reconnect(){this._ws&&(this.logger.info(`reconnect signal ${this.name}`),this._ws.reconnect())}destroy(){this.close(),this._ws=null,this.pollingClient.destroy()}get connected(){return!!this.pollingClient.connected||this._connected}get _connected(){return!!this._ws&&this._ws.readyState===x.OPEN}_setupPolling(e){e.onopen=e=>{e&&(this.serverVersion=e),this.logger.info("polling opened"),this.onopen&&this.onopen()},e.onerror=e=>{this._connected||this.onerror&&this.onerror(e)},e.onclose=()=>{this._connected||this.onclose&&this.onclose()},e.onmessage=e=>{if(this.onmessage)for(let t of e)this.onmessage(t,this.name)}}},dt=class{constructor(e,t,s,i){this.logger=e,this.config=t,this.mainAddr=s,this.backupAddr=i,this.mainWS=this._init(s),this.backupTimer=setTimeout((()=>{this.destroyed||(this.backupWS=this._init(i,"backup"))}),900),this._connected=!1,this.destroyed=!1,this.normalClosed=!1}_init(e,t){if(!e)return null;let s=new ct(this.logger,this.config,e,t);return s.onopen=()=>{this.normalClosed=!1,!this._connected&&this.onopen&&(this._connected=!0,this.onopen())},s.onmessage=e=>{this.onmessage&&this.onmessage(e,s.name)},s.onclose=()=>{this._connected&&!this.connected&&this.onclose&&(this._connected=!1,this.onclose())},s.onerror=e=>{this.onerror&&this.onerror(e)},s}sendSignalBatch(e,t,s){if(s){const i=this._getWSByName(s);i&&i.sendSignalBatch(e,t)}else this.mainConnected?this.mainWS.sendSignalBatch(e,t):this.backupConnected&&this.backupWS.sendSignalBatch(e,t)}sendSignal(e,t,s){this.sendSignalBatch(e,[t],s)}sendReject(e,t,s,i){if(i){const r=this._getWSByName(i);if(r)return void r.sendReject(e,t,s)}this.mainConnected?this.mainWS.sendReject(e,t,s):this.backupConnected?this.backupWS.sendReject(e,t,s):this.logger.warn("no signal available, send reject failed")}close(){this.mainWS&&this.mainWS.close(),this.backupWS&&this.backupWS.close(),this.normalClosed=!0}_getWSByName(e){return this.mainWS&&this.mainWS.name===e?this.mainWS:this.backupWS&&this.backupWS.name===e?this.backupWS:null}reconnect(){this.mainWS&&this.mainWS.reconnect(),this.backupWS&&this.backupWS.reconnect()}destroy(){this.close(),clearTimeout(this.backupTimer),this.mainWS=null,this.backupWS=null,this.destroyed=!0}get connected(){return this.mainConnected||this.backupConnected}get mainConnected(){return this.mainWS&&this.mainWS.connected}get backupConnected(){return this.backupWS&&this.backupWS.connected}};const ut=function(e,t,s=40){var i=null,r=!1,n=s;return function(s=!1){if(s)return clearTimeout(i),void(r=!1);r||(r=!0,i=setTimeout((function(){e.call(t,n),r=!1,i=null}),1e3*n),n*=1.1)}};class gt{constructor(e,t,s=10){this.engine=e,this.config=t,this.trickle=t.trickleICE,this.poolSize=s,this.pool=[],t.ICEPreflight&&this.reset(),this.trickle=!1}reset(){this.destroy();for(let e=0;e<this.poolSize;e++)this.pool.push(this._createPeer())}_createPeer(){return new te(this.engine,void 0,void 0,!0,this.config,{trickle:this.trickle})}get available(){return 0!==this.pool.length&&this.pool[0].signalMsgs.length>0}getPeer(){if(0===this.pool.length)return this._createPeer();const e=this.pool.shift();return this.pool.length<5&&this.pool.push(this._createPeer()),e}destroy(){for(let e of this.pool)e.destroy(!0);this.pool=[]}}class ft extends(n()){constructor(e,t,s,i){super(),this.engine=e,this.logger=e.logger,this.config=i,this.connected=!1,this.scheduler=s,this.sequential=this.scheduler.sequential,this.DCMap=new Map,this.failedDCSet=new Set,this.notFoundDCSet=new Set;const r=Z().isMobile();this.peerPool=new gt(e,i,15),this.signalerWs=null,this.fetcher=t,this.peers=[],this.requestPeersQueue=[],this.minConns=5,this.stuns=[],this.requestMorePeers=ut(this._requestMorePeers,this),this.maxConns=r?15:22,this.maxConnsActive=r?10:13,this.peersIncrement=0,this.gotPeersFromTracker=!1,this.requestPeersWaitCount=0,this.fuseRate=-1,this.overloaded=!1}get totalConns(){return this.scheduler.peersNum+1}resumeP2P(){if(!this.fetcher)return;const{engine:t,config:s,fetcher:i}=this,{btAnnounce:r,btAnnouncePreflight:n}=i,{wsSignalerAddr:o,wifiOnly:a,geoIpPreflight:h}=s;(h?n:r).call(i).then((e=>{if(!this.scheduler)return;t.peerId=this.peerId=e.id,this.minConns=e.min_conns,this.scheduler.minConns=this.minConns;const s=e.peers;this.scheduler.notifyPeersLoaded(s.length),t.netType=i.announceInfo.netType,(e.wifi_only||a)&&t.isMobileNet&&(this.scheduler.downloadOnly=!0,this.logger.info("downloadOnly mode"));const r=o.main;let n=o.backup;e.signal&&!e.signal2&&(n=void 0),this.signalerWs=this._initSignalerWs(e.signal||r,e.signal2||n,e.token,e.token2),0===s.length?this.requestMorePeers():this.peers=this._filterPeers(s),t.emitEvent("peerId",this.peerId),e.stun&&e.stun.length>0&&(this.stuns=e.stun),e.debug&&(this.logger.enableDebug(),e.log_url&&(this.logUploader=new q(e.log_url,this.fetcher.key||location.hostname,this.peerId,"2.11.3"),this.logger.setUploader(this.logUploader))),t.onTrackerResume&&t.onTrackerResume(e),e.fuse_rate&&(this.fuseRate=e.fuse_rate),e.overload&&(this.overloaded=!0,this.logger.warn("server overloaded, degrade signaling")),this.logger.info(`announce request response ${JSON.stringify(e,null,2)}`)})).catch((s=>{if(this.scheduler&&("TRACKER_EXPT"===s.code&&t.emitEvent(e.EXCEPTION,s),this.scheduler.notifyPeersLoaded(0),s.retry)){const e=p(15e3,4e4);this.logger.warn(`announce retry after ${e}ms`),this.announceTimer=setTimeout((()=>{this.resumeP2P()}),e)}}))}stopP2P(){this.fetcher.postStatsWithBeacon(),this.fetcher.destroy(),this.fetcher=null,this.requestMorePeers(!0),this.scheduler.destroy(),this.scheduler=null,this.signalerWs&&(this.signalerWs.destroy(),this.signalerWs=null),this.peers=[];for(let e of this.DCMap.values())e.destroy(!0);this.DCMap.clear(),this.peerPool.destroy(),this.peerPool=null,this.failedDCSet.clear(),this.notFoundDCSet.clear(),this.logUploader&&(this.logUploader.destroy(),this.logUploader=null),this.logger.warn("tracker stop p2p")}destroy(){this.stopP2P(),this.removeAllListeners(),clearTimeout(this.announceTimer),clearTimeout(this.requestPeersTimer);const{config:e}=this;e.getStats=e.getPeerId=e.getPeersInfo=null,this.logger.warn("destroy tracker")}_filterPeers(e){const t=[],s=[...this.DCMap.keys(),...this.failedDCSet.keys(),this.peerId];return e.filter((e=>!s.includes(e.id))).forEach((e=>{t.push({id:e.id,intermediator:e.intermediator})})),t}_tryConnectToAllPeers(){const{logger:e}=this;if(0!==this.peers.length)for(e.info(`try connect to ${this.peers.length} peers, map size ${this.DCMap.size} limit ${this.maxConnsActive} peersNum ${this.scheduler.peersNum}`);this.peers.length>0&&!(this.DCMap.size>=this.maxConnsActive);){let t=this.peers.shift();const s=t.intermediator;this.signalerWs.connected||s&&this.DCMap.has(s)?(e.debug(`create DataChannel ${t.id} intermediator ${s}`),this._createDatachannel(t.id,!0,s)):e.info(`skip peer ${t.id} without intermediator`)}else e.info("no peers after filter")}_handleSendSignal(e,t){const s=e.remotePeerId;if(e.intermediator){const i=this.DCMap.get(e.intermediator);if(i){let r=!0;for(let e of t)i.sendMsgSignal(s,this.peerId,e)||(r=!1);if(r)return;this.logger.warn(`intermediator ${e.intermediator} relay failed`)}}e.intermediator=void 0,this.signalerWs.sendSignalBatch(s,t,e.signalName)}_setupDC(t){t.on(e.DC_SIGNAL,(e=>{this._handleSendSignal(t,[e])})).on(e.DC_SIGNAL_BATCH,(e=>{this._handleSendSignal(t,e)})).on(e.DC_PEER_SIGNAL,(e=>{const s=e.to_peer_id,i=e.from_peer_id,r=e.action;if(s&&i&&r)if(s!==this.peerId){this.logger.info(`relay signal for ${i}`);const n=this.DCMap.get(s);if(n){if("signal"!==r)return void n.sendMsgSignalReject(s,i,e.reason,e.fatal);if(n.sendMsgSignal(s,i,e.data))return}t.sendMsgSignal(i,s)}else"signal"===r?this._handleSignalMsg(i,e,t.remotePeerId):this._handSignalRejected(i,e)})).on(e.DC_GET_PEERS,(()=>{const e=f(),s=this.scheduler.getPeers().filter((e=>e.peersConnected<(e.mobileWeb?15:22)&&!e.super));if(s&&s.length>0){const i=[];s.forEach((s=>{if(s.remotePeerId===t.remotePeerId||s.remotePeerId===this.peerId)return;if(!this.config.live&&(s.currentPos-t.currentPos>600||s.currentPos<t.currentPos))return;e-s.timeJoin>50&&i.push({id:s.remotePeerId,...s.region})})),this.logger.info(`send ${i.length} peers to ${t.remotePeerId}`),t.sendPeers(i)}})).on(e.DC_PEERS,(e=>{const s=e.peers;this.logger.info(`receive ${s.length} peers from ${t.remotePeerId}`),s&&s.length>0&&(s.forEach((e=>{e.intermediator=t.remotePeerId,e.region||(e.region={})})),this.requestPeersQueue.push(...s)),this.requestPeersWaitCount--,this.requestPeersWaitCount<=0&&this._handleRequestedPeers()})).once(e.DC_ERROR,(e=>{this.logger.info(`datachannel ${t.channelId} failed fatal ${e}`),this.scheduler&&(this.scheduler.deletePeer(t),this._destroyAndDeletePeer(t.remotePeerId,e),this.fetcher&&(t.connected||e&&this.fetcher.increFailConns(),e&&this.failedDCSet.add(t.remotePeerId),this._doSignalFusing(this.scheduler.peersNum),this._doPeersRequest()))})).once(e.DC_TIMEOUT,(()=>{t.intermediator||(this.failedDCSet.add(t.remotePeerId),this.fetcher&&this.fetcher.increFailConns()),this._destroyAndDeletePeer(t.remotePeerId,!1),this._doPeersRequest()})).once(e.DC_CLOSE,(e=>{this.logger.info(`datachannel ${t.channelId} closed fatal ${e}`),this.scheduler&&(this.scheduler.deletePeer(t),this._doSignalFusing(this.scheduler.peersNum)),this._destroyAndDeletePeer(t.remotePeerId,e),e&&this.failedDCSet.add(t.remotePeerId),this._doPeersRequest()})).once(e.DC_OPEN,(()=>{t.isInitiator&&this.scheduler.handshakePeer(t)})).once(e.DC_METADATA,(e=>{const{scheduler:s}=this;t.isInitiator||s.handshakePeer(t),s.handleMetaData(t,e);const i=this.DCMap.size>=this.maxConnsActive;this.requestMorePeers(i),t.intermediator&&this.peersIncrement++,this._doSignalFusing(s.peersNum)}))}_doPeersRequest(){const e=this.scheduler.peersNum;!this.signalerWs.connected||this.overloaded&&e>this.minConns?this._requestPeersFromPeers(e):this.requestMorePeers(),this._tryConnectToAllPeers()}_doSignalFusing(e){if(this.fuseRate<=0)return;const t=this.signalerWs.connected;t&&e>=this.fuseRate?(this.logger.warn("reach fuseRate, report stats close signaler"),this.totalConns-1>0&&this.fetcher.postStats(),this.signalerWs.close()):!t&&e<=this.minConns&&this.signalerWs.normalClosed&&(this.logger.warn(`low conns ${e}, reconnect signaler`),this.signalerWs.reconnect())}_initSignalerWs(t,s,i,r){const n=(e,t)=>{let s=`${e}?id=${this.peerId}&p=web&v=2.11.3`;return t&&(s=`${s}&token=${t}`),s};let o,a=n(t,i);if(s&&s!==t){let e=n(s,r);o=new dt(this.logger,this.config,a,e)}else o=new ct(this.logger,this.config,a);return o.onopen=()=>{this.connected=!0,this.engine.emitEvent("serverConnected",!0),this._tryConnectToAllPeers()},o.onmessage=(e,t)=>{let s=e.action;const i=e.from_peer_id||e.from;if(i)switch(s){case"signal":this._handleSignalMsg(i,e,null,t);break;case"reject":this._handSignalRejected(i,e);break;default:this.logger.warn(`Signal websocket unknown action ${s}`)}else this.logger.warn("fromPeerId is missed")},o.onclose=()=>{this.connected=!1,this.engine.emitEvent("serverConnected",!1)},o.onerror=t=>{t.message&&this.logger.warn(`signal err: ${t.message}`),t.message&&this.engine.emitEvent(e.EXCEPTION,We()(t,"SIGNAL_EXPT"))},o}_handSignalRejected(e,t){this.logger.warn(`signaling ${e} rejected, reason ${t.reason}`);const s=this.DCMap.get(e);s&&!s.connected&&(s.destroy(t.fatal),this.DCMap.delete(e)),this.requestMorePeers(),t.fatal&&this.failedDCSet.add(e),this._tryConnectToAllPeers()}_handleSignalMsg(e,t,s,i){if(!this.scheduler)return;const{logger:r}=this;if(t.data){if(this.failedDCSet.has(e))return void this._sendSignalReject(e,`${e} blocked`,s,i,!0);this._handleSignal(e,t.data,s,i)}else{const t=this.DCMap.get(e);if(!t)return;if(this.signalerWs.backupConnected&&t&&t.signalMsgs.length>0&&"main"===i&&!t.useBackupSignal)return t.useBackupSignal=!0,t.signalName="backup",r.warn(`${e} not found from main, try backup signal`),t.intermediator=void 0,void this.signalerWs.sendSignalBatch(e,t.signalMsgs,"backup");if(t.useBackupSignal)return;this._destroyAndDeletePeer(e),r.info(`signaling ${e} not found`);const{scheduler:n}=this;n.waitForPeer&&(n.waitingPeers--,0===n.waitingPeers&&n.notifyPeersLoaded(0)),this.requestMorePeers(),this._tryConnectToAllPeers(),s||this.notFoundDCSet.add(e)}}_handleSignal(e,t,s,i){const r=t.type,{logger:n}=this;let o=this.DCMap.get(e);if(o){if(o.connected)return void n.info("datachannel had connected, signal ignored");if("offer"===r){if(!(this.peerId>e))return void n.warn(`signal type wrong ${r}, ignored`);this._destroyAndDeletePeer(e,!1),n.warn(`signal type wrong ${r}, convert to non initiator`),o=this._createDatachannel(e,!1,s)}}else{if("answer"===r){const t=`type wrong ${r}`;return n.warn(t),this._sendSignalReject(e,t,s,i),void this._destroyAndDeletePeer(e,!1)}if(n.debug(`receive node ${e} connection request`),this.DCMap.size>=this.maxConns){const t=`reach limit ${this.maxConns}`;return n.warn(t),void this._sendSignalReject(e,t,s,i)}o=this._createDatachannel(e,!1,s)}o&&(i&&(o.signalName=i),o.receiveSignal(t))}_createDatachannel(e,t,s){if(!this.fetcher)return;let i;if(t&&this.peerPool.available)i=this.peerPool.getPeer(),this.logger.info(`get peer from pool, signal size ${i.signalMsgs.length}`),i.intermediator=s,i.assignPeerId(this.peerId,e);else{let r=this.config.trickleICE;this.overloaded&&(r=!1),i=new te(this.engine,this.peerId,e,t,this.config,{stuns:this.stuns,intermediator:s,trickle:!s&&r})}return this.DCMap.set(e,i),this._setupDC(i),i}_sendSignalReject(e,t,s,i,r){if(s){const i=this.DCMap.get(s);if(i&&i.sendMsgSignalReject(e,this.peerId,t,r))return}this.signalerWs.sendReject(e,t,r,i)}_requestMorePeers(e){if(!this.fetcher)return;const{logger:t}=this,s=this.scheduler.peersNum;s>=this.maxConnsActive||(t.info(`requestMorePeers after delay ${e}, peersIncrement ${this.peersIncrement}`),s<3||this.peersIncrement<=3&&!this.gotPeersFromTracker?this._requestPeersFromServer(s):this._requestPeersFromPeers(s)||this._requestPeersFromServer(s),this.peersIncrement=0)}_requestPeersFromServer(e){const{logger:t}=this;this.failedDCSet.size>50&&(this.failedDCSet=new Set([...this.failedDCSet].slice(-50))),this.notFoundDCSet.size>20&&(this.notFoundDCSet=new Set([...this.notFoundDCSet].slice(-20))),this.fetcher.btGetPeers([...this.DCMap.keys(),...this.failedDCSet.keys(),...this.notFoundDCSet.keys()],0===e).then((e=>{e&&e.peers&&(t.info(`requestMorePeers resp ${JSON.stringify(e,null,2)}`),this.peers=this._filterPeers(e.peers),this._tryConnectToAllPeers())})).catch((e=>{t.error(`requestMorePeers error ${e}`)})),this.gotPeersFromTracker=!0}_requestPeersFromPeers(e){return!!this.requestPeersTimer||(e>=this.maxConnsActive||(this.requestPeersWaitCount=this.scheduler.requestPeers(),0!==this.requestPeersWaitCount&&(this.gotPeersFromTracker=!1,this.requestPeersTimer=setTimeout((()=>{this.logger.warn("requestPeersTimer timeout"),this._handleRequestedPeers()}),1e4),!0)))}_handleRequestedPeers(){if(clearTimeout(this.requestPeersTimer),this.requestPeersTimer=void 0,this.fetcher){if(this.requestPeersQueue.length>0){const e=function(e,t){const s=[],i=new Set;for(let t of e)i.has(t.id)||(i.add(t.id),s.push(t));const{asn:r,country:n}=t;if(!r||!n||s.length<2)return s;const o=s.filter((e=>!e.asn&&!e.country)),a=s.filter((e=>e.country===n&&e.asn!==r)),h=s.filter((e=>e.asn===r&&e.country===n)),l=s.filter((e=>!o.includes(e)&&!h.includes(e)&&!a.includes(e)));return h.concat(a).concat(o).concat(l)}(this.requestPeersQueue,this.fetcher.announceInfo);this.peers=this._filterPeers(e),this.requestPeersQueue=[]}this._tryConnectToAllPeers()}}_destroyAndDeletePeer(e,t=!0){const s=this.DCMap.get(e);return!!s&&(s.destroy(t),this.DCMap.delete(e),!0)}}const pt=ft;class mt extends ge{constructor(e={},t=null){if(super(e),e.validateSegment||(e.validateSegment=function(e,t){return!0}),this.hlsjs=t,this.config=Object.assign({useDiskCache:!e.live},Ee,e),t){this.HLSEvents=t.constructor.Events;const e=t.constructor.version;this.hlsjsVersion=e,this.config.isHlsV0=e&&"0"===e.split(".")[0]}this.rangeTested=!1,this.lastLevel=0,this.multiBitrate=!1}setup(){let{token:e,channelId:t}=this.config,s=e=>{const t=h().parseURL(e);return`${t.netLoc.substr(2)+t.path.substring(0,t.path.lastIndexOf("."))}`};t&&(s=this.makeChannelId(e,t));return{channelIdMaker:s,signalId:this.makeSignalId(),browserInfo:{...this.commonBrowserInfo}}}setupElectron(){this.browserInfo.device===K.device.PC_NATIVE&&(this.browserInfo={...this.browserInfo,app:this.config.appName,bundle:this.config.appId})}getExtraForStats(){const e=super.getExtraForStats();return!this.config.live&&this.media&&(e.pos=Math.round(this.media.currentTime)),this.multiBitrate&&this.currentLevel!==this.lastLevel&&(e.level=this.currentLevel+"",this.lastLevel=this.currentLevel),e}getExtraForPeersRequest(){const e=super.getExtraForPeersRequest();return this.multiBitrate&&(e.level=this.currentLevel+""),e}destroy(){super.destroy()}async initSegmentManager(e){const{logger:s,config:i}=this;if(self.indexedDB&&i.useDiskCache&&!i.live){const e=new Oe(this,i);try{await e.setupStore(),this.bufMgr=e}catch(e){s.warn(e),this.bufMgr=new Be(this,i)}}else this.bufMgr=new Be(this,i);if(this.bufMgr.maxBufSize<=0)throw new Error("bufMgr state is invalid");"SegmentStore"===this.bufMgr.name&&(this.removeAllListeners(t.BM_FATAL_ERROR),this.once(t.BM_FATAL_ERROR,(()=>{const t="SegmentStoreFatalError";s.warn(`${t}, switch to SegmentCache`),this.bufMgr.destroy(),this.bufMgr=new Be(this,i),e&&e(this.bufMgr),s&&s.reportUrl&&s.report(JSON.stringify(this.browserInfo),t,this.peerId,"2.11.3",5e4)})))}generateTag(){let e=`${(0,K.getBrowser)()}${y()?"s":""}`;return e.includes("iPhone")&&"HlsSwP2pEngine"===this.engineName&&(e=`${e}_p`),!this.config.live&&this.bufMgr&&(e=`${e}_${"SegmentStore"===this.bufMgr.name?"d":"m"}`),e}onTrackerResume(e){e.report_url&&this.logger.enableReport(e.report_url)}async _init(e,t,s){const{logger:i,config:r}=this;await this.initSegmentManager((e=>{if(this.tracker){const{scheduler:t}=this.tracker;t.bufferManager=e,t.bitset.clear()}})),s.live||this.media&&(s.pos=Math.round(this.media.currentTime)),s.tag=r.tag||this.generateTag();let n=new at(this,r.token,encodeURIComponent(e),r.announce||"",s);this.fetcher=n,this.tracker=new pt(this,n,t,r),t.bufferManager=this.bufMgr,this.setupWindowListeners()}_onHlsError(e,s){if(!s||!this.hlsjs)return;const{logger:i,tracker:r}=this,n=`${s.type} details ${s.details} reason ${s.reason}`;if(s.fatal?i.error(n):i.warn(n),"networkError"===s.type)return;const{player:o}=this.browserInfo,a=`${o||""} hlsjs ${this.hlsjsVersion} ${location.href}`,h=this.hlsjs.constructor.ErrorDetails;switch(s.details){case h.BUFFER_STALLED_ERROR:this.fetcher&&this.fetcher.increRebuffers(),r&&r.scheduler&&i.warn("buffered: "+1e3*r.scheduler.getBufferedDuration());break;case h.INTERNAL_EXCEPTION:if(s.event&&"demuxerWorker"!==s.event){s.error||(s.error={});const e=`${s.error.message} event ${s.event} ${a}`;this.fetcher&&s.fatal&&(this.fetcher.errsInternalExpt++,this.fetcher.exptMsg=e),i.error(`INTERNAL_EXCEPTION event ${s.event} err ${s.error.message}`),this.emitEvent(t.EXCEPTION,We()(s.error,"HLSJS_EXPT")),i&&i.reportUrl&&i.report(e,s.event,this.peerId,"2.11.3")}break;default:if(s.fatal){const e=`${s.type} ${s.details} ${s.err||""} ${a}`;i&&i.reportUrl&&i.report(e,s.details,this.peerId,"2.11.3"),"mediaError"===s.type&&this.tracker&&this.tracker.scheduler&&this.tracker.scheduler.clearCache()}}}}class _t{constructor(){this.method=null,this.key=null,this.iv=null,this._uri=null}get uri(){return!this._uri&&this.reluri&&(this._uri=a.buildAbsoluteURL(this.baseuri,this.reluri,{alwaysNormalize:!0})),this._uri}}class St{constructor(){this._url=null,this._byteRange=null,this._decryptdata=null,this.tagList=[],this.programDateTime=null,this.rawProgramDateTime=null,this._elementaryStreams={[St.ElementaryStreamTypes.AUDIO]:!1,[St.ElementaryStreamTypes.VIDEO]:!1}}static get ElementaryStreamTypes(){return{AUDIO:"audio",VIDEO:"video"}}get url(){return!this._url&&this.relurl&&(this._url=a.buildAbsoluteURL(this.baseurl,this.relurl,{alwaysNormalize:!0})),this._url}set url(e){this._url=e}get byteRange(){if(!this._byteRange&&!this.rawByteRange)return[];if(this._byteRange)return this._byteRange;let e=[];if(this.rawByteRange){const t=this.rawByteRange.split("@",2);if(1===t.length){const t=this.lastByteRangeEndOffset;e[0]=t||0}else e[0]=parseInt(t[1]);e[1]=parseInt(t[0])+e[0],this._byteRange=e}return e}get byteRangeStartOffset(){return this.byteRange[0]}get byteRangeEndOffset(){return this.byteRange[1]}get decryptdata(){return this._decryptdata||(this._decryptdata=this.fragmentDecryptdataFromLevelkey(this.levelkey,this.sn)),this._decryptdata}get endProgramDateTime(){if(!Number.isFinite(this.programDateTime))return null;let e=Number.isFinite(this.duration)?this.duration:0;return this.programDateTime+1e3*e}get encrypted(){return!(!this.decryptdata||null===this.decryptdata.uri||null!==this.decryptdata.key)}addElementaryStream(e){this._elementaryStreams[e]=!0}hasElementaryStream(e){return!0===this._elementaryStreams[e]}createInitializationVector(e){let t=new Uint8Array(16);for(let s=12;s<16;s++)t[s]=e>>8*(15-s)&255;return t}fragmentDecryptdataFromLevelkey(e,t){let s=e;return e&&e.method&&e.uri&&!e.iv&&(s=new _t,s.method=e.method,s.baseuri=e.baseuri,s.reluri=e.reluri,s.iv=this.createInitializationVector(t)),s}}class yt{constructor(e){this.endCC=0,this.endSN=0,this.fragments=[],this.initSegment=null,this.live=!0,this.needSidxRanges=!1,this.startCC=0,this.startSN=0,this.startTimeOffset=null,this.targetduration=0,this.totalduration=0,this.type=null,this.url=e,this.version=null}get hasProgramDateTime(){return!(!this.fragments[0]||!Number.isFinite(this.fragments[0].programDateTime))}}const vt=/^(\d+)x(\d+)$/,Pt=/\s*(.+?)\s*=((?:\".*?\")|.*?)(?:,|$)/g;class Et{constructor(e){"string"==typeof e&&(e=Et.parseAttrList(e));for(let t in e)e.hasOwnProperty(t)&&(this[t]=e[t])}decimalInteger(e){const t=parseInt(this[e],10);return t>Number.MAX_SAFE_INTEGER?1/0:t}hexadecimalInteger(e){if(this[e]){let t=(this[e]||"0x").slice(2);t=(1&t.length?"0":"")+t;const s=new Uint8Array(t.length/2);for(let e=0;e<t.length/2;e++)s[e]=parseInt(t.slice(2*e,2*e+2),16);return s}return null}hexadecimalIntegerAsNumber(e){const t=parseInt(this[e],16);return t>Number.MAX_SAFE_INTEGER?1/0:t}decimalFloatingPoint(e){return parseFloat(this[e])}enumeratedString(e){return this[e]}decimalResolution(e){const t=vt.exec(this[e]);if(null!==t)return{width:parseInt(t[1],10),height:parseInt(t[2],10)}}static parseAttrList(e){let t,s={};for(Pt.lastIndex=0;null!==(t=Pt.exec(e));){let e=t[2],i='"';0===e.indexOf(i)&&e.lastIndexOf(i)===e.length-1&&(e=e.slice(1,-1)),s[t[1]]=e}return s}}const bt=Et,wt={audio:{a3ds:!0,"ac-3":!0,"ac-4":!0,alac:!0,alaw:!0,dra1:!0,"dts+":!0,"dts-":!0,dtsc:!0,dtse:!0,dtsh:!0,"ec-3":!0,enca:!0,g719:!0,g726:!0,m4ae:!0,mha1:!0,mha2:!0,mhm1:!0,mhm2:!0,mlpa:!0,mp4a:!0,"raw ":!0,Opus:!0,samr:!0,sawb:!0,sawp:!0,sevc:!0,sqcp:!0,ssmv:!0,twos:!0,ulaw:!0},video:{avc1:!0,avc2:!0,avc3:!0,avc4:!0,avcp:!0,drac:!0,dvav:!0,dvhe:!0,encv:!0,hev1:!0,hvc1:!0,mjp2:!0,mp4v:!0,mvc1:!0,mvc2:!0,mvc3:!0,mvc4:!0,resv:!0,rv60:!0,s263:!0,svc1:!0,svc2:!0,"vc-1":!0,vp08:!0,vp09:!0}};const Ct=/#EXT-X-STREAM-INF:([^\n\r]*)[\r\n]+([^\r\n]+)/g,It=/#EXT-X-MEDIA:(.*)/g,Lt=new RegExp([/#EXTINF:\s*(\d*(?:\.\d+)?)(?:,(.*)\s+)?/.source,/|(?!#)([\S+ ?]+)/.source,/|#EXT-X-BYTERANGE:*(.+)/.source,/|#EXT-X-PROGRAM-DATE-TIME:(.+)/.source,/|#.*/.source].join(""),"g"),Tt=/(?:(?:#(EXTM3U))|(?:#EXT-X-(PLAYLIST-TYPE):(.+))|(?:#EXT-X-(MEDIA-SEQUENCE): *(\d+))|(?:#EXT-X-(TARGETDURATION): *(\d+))|(?:#EXT-X-(KEY):(.+))|(?:#EXT-X-(START):(.+))|(?:#EXT-X-(ENDLIST))|(?:#EXT-X-(DISCONTINUITY-SEQ)UENCE:(\d+))|(?:#EXT-X-(DIS)CONTINUITY))|(?:#EXT-X-(VERSION):(\d+))|(?:#EXT-X-(MAP):(.+))|(?:(#)([^:]*):(.*))|(?:(#)(.*))(?:.*)\r?\n?/,Rt=/\.(mp4|m4s|m4v|m4a)$/i;class At{static findGroup(e,t){if(!e)return null;let s=null;for(let i=0;i<e.length;i++){const r=e[i];r.id===t&&(s=r)}return s}static convertAVC1ToAVCOTI(e){let t,s=e.split(".");return s.length>2?(t=s.shift()+".",t+=parseInt(s.shift()).toString(16),t+=("000"+parseInt(s.shift()).toString(16)).substr(-4)):t=e,t}static resolve(e,t){return a.buildAbsoluteURL(t,e,{alwaysNormalize:!0})}static parseMasterPlaylist(e,t){let s,i=[];function r(e,t){["video","audio"].forEach((s=>{const i=e.filter((e=>function(e,t){const s=wt[t];return!!s&&!0===s[e.slice(0,4)]}(e,s)));if(i.length){const r=i.filter((e=>0===e.lastIndexOf("avc1",0)||0===e.lastIndexOf("mp4a",0)));t[`${s}Codec`]=r.length>0?r[0]:i[0],e=e.filter((e=>-1===i.indexOf(e)))}})),t.unknownCodecs=e}for(Ct.lastIndex=0;null!=(s=Ct.exec(e));){const e={},n=e.attrs=new bt(s[1]);e.url=At.resolve(s[2],t);const o=n.decimalResolution("RESOLUTION");o&&(e.width=o.width,e.height=o.height),e.bitrate=n.decimalInteger("AVERAGE-BANDWIDTH")||n.decimalInteger("BANDWIDTH"),e.name=n.NAME,r([].concat((n.CODECS||"").split(/[ ,]+/)),e),e.videoCodec&&-1!==e.videoCodec.indexOf("avc1")&&(e.videoCodec=At.convertAVC1ToAVCOTI(e.videoCodec)),i.push(e)}return i}static parseMasterPlaylistMedia(e,t,s,i=[]){let r,n=[],o=0;for(It.lastIndex=0;null!==(r=It.exec(e));){const e={},a=new bt(r[1]);if(a.TYPE===s){if(e.groupId=a["GROUP-ID"],e.name=a.NAME,e.type=s,e.default="YES"===a.DEFAULT,e.autoselect="YES"===a.AUTOSELECT,e.forced="YES"===a.FORCED,a.URI&&(e.url=At.resolve(a.URI,t)),e.lang=a.LANGUAGE,e.name||(e.name=e.lang),i.length){const t=At.findGroup(i,e.groupId);e.audioCodec=t?t.codec:i[0].codec}e.id=o++,n.push(e)}}return n}static parseLevelPlaylist(e,t){let s,i,r=0,n=0,o=new yt(t),a=new _t,h=0,l=null,c=new St,d=null;for(Lt.lastIndex=0;null!==(s=Lt.exec(e));){const e=s[1];if(e){c.duration=parseFloat(e);const t=(" "+s[2]).slice(1);c.title=t||null,c.tagList.push(t?["INF",e,t]:["INF",e])}else if(s[3]){if(Number.isFinite(c.duration)){const e=r++;c.start=n,c.levelkey=a,c.sn=e,c.cc=h,c.baseurl=t,c.relurl=(" "+s[3]).slice(1),Dt(c,l),o.fragments.push(c),l=c,n+=c.duration,c=new St}}else if(s[4]){if(c.rawByteRange=(" "+s[4]).slice(1),l){const e=l.byteRangeEndOffset;e&&(c.lastByteRangeEndOffset=e)}}else if(s[5])c.rawProgramDateTime=(" "+s[5]).slice(1),c.tagList.push(["PROGRAM-DATE-TIME",c.rawProgramDateTime]),null===d&&(d=o.fragments.length);else{for(s=s[0].match(Tt),i=1;i<s.length&&void 0===s[i];i++);const e=(" "+s[i+1]).slice(1),n=(" "+s[i+2]).slice(1);switch(s[i]){case"#":c.tagList.push(n?[e,n]:[e]);break;case"PLAYLIST-TYPE":o.type=e.toUpperCase();break;case"MEDIA-SEQUENCE":r=o.startSN=parseInt(e);break;case"TARGETDURATION":o.targetduration=parseFloat(e);break;case"VERSION":o.version=parseInt(e);break;case"EXTM3U":break;case"ENDLIST":o.live=!1;break;case"DIS":h++,c.tagList.push(["DIS"]);break;case"DISCONTINUITY-SEQ":h=parseInt(e);break;case"KEY":var u=new bt(e),g=u.enumeratedString("METHOD"),f=u.URI,p=u.hexadecimalInteger("IV");g&&(a=new _t,f&&["AES-128","SAMPLE-AES","SAMPLE-AES-CENC"].indexOf(g)>=0&&(a.method=g,a.baseuri=t,a.reluri=f,a.key=null,a.iv=p));break;case"START":let i=new bt(e).decimalFloatingPoint("TIME-OFFSET");Number.isFinite(i)&&(o.startTimeOffset=i);break;case"MAP":let l=new bt(e);c.relurl=l.URI,c.rawByteRange=l.BYTERANGE,c.baseurl=t,c.sn="initSegment",o.initSegment=c,c=new St,c.rawProgramDateTime=o.initSegment.rawProgramDateTime;break;default:console.warn(`line parsed but not handled: ${s}`)}}}return c=l,c&&!c.relurl&&(o.fragments.pop(),n-=c.duration),o.totalduration=n,o.averagetargetduration=n/o.fragments.length,o.endSN=r-1,o.startCC=o.fragments[0]?o.fragments[0].cc:0,o.endCC=h,!o.initSegment&&o.fragments.length&&o.fragments.every((e=>Rt.test(e.relurl)))&&(console.warn("MP4 fragments found but no init segment (probably no MAP, incomplete M3U8), trying to fetch SIDX"),c=new St,c.relurl=o.fragments[0].relurl,c.baseurl=t,c.level=id,c.sn="initSegment",o.initSegment=c,o.needSidxRanges=!0),d&&function(e,t){let s=e[t];for(let i=t-1;i>=0;i--){const t=e[i];t.programDateTime=s.programDateTime-1e3*t.duration,s=t}}(o.fragments,d),o}}function Dt(e,t){e.rawProgramDateTime?e.programDateTime=Date.parse(e.rawProgramDateTime):t&&t.programDateTime&&(e.programDateTime=t.endProgramDateTime),Number.isFinite(e.programDateTime)||(e.programDateTime=null,e.rawProgramDateTime=null)}const Mt={ANY:0,COMPLETE:1,PARTIAL_FORWARD:2,PARTIAL_REVERSE:3},Nt=(e,t,s,i,r=!1)=>{const[n,o,a]=Ot(e,t,s,i);return r&&n.length>=1?T(n[0]):n.length>=2?[n[0],n[1]]:R(n,o,a)},Ot=(e,t,s,i)=>{const r=[],{COMPLETE:n,PARTIAL_FORWARD:o,PARTIAL_REVERSE:a}=Mt;return[n,o,a].forEach((n=>{r.push(kt(e,n,t,s,i))})),r},kt=(e,t,s,i,r)=>e.filter((e=>e.bitset.hasWithId(s,i,r,t)));class $t{constructor(e=!1,t){this.isLive=e,this.levelMap=new Map;for(let e in t){const s=Number(e);if(s<0)continue;const i=new Map;if(t[e])for(let s of t[e])i.set(s,{state:Mt.COMPLETE,segId:void 0});this.levelMap.set(s,i)}}totalLevels(){return this.levelMap.size}hasWithId(e,t,s,i=Mt.ANY){if(t<0)return!1;const r=this._createOrGetSet(t).get(e);return!!r&&((!s||!r.segId||r.segId===s)&&(i===Mt.ANY||r.state===i))}has(e,t,s=Mt.ANY){return this.hasWithId(e,t,void 0,s)}hasCompleteOr(e,t,s=Mt.COMPLETE){const i=this._createOrGetSet(t).get(e);return!!i&&(i.state===Mt.COMPLETE||i.state===s)}getObj(e,t){let s=this._createOrGetSet(t).get(e);return s||(s={}),s}getSegId(e,t){return this.getObj(e,t).segId}getState(e,t){return this.getObj(e,t).state}delete(e,t){return this._createOrGetSet(t).delete(e)}add(e,t,s,i){if("number"!=typeof(r=e)||r%1!=0)return;var r;this._createOrGetSet(t).set(e,{state:i,segId:s}),this.isLive&&this._trimBitset(e)}array(e){const t=this._createOrGetSet(e);return this._keysForStateComplete(t)}allArray(){let e={};return this.levelMap.forEach(((t,s)=>{e[s]=this._keysForStateComplete(t)})),e}clear(){this.levelMap.forEach((e=>{e.clear()}))}size(e){return this._createOrGetSet(e).size}_createOrGetSet(e){"number"!=typeof e&&(e=Number(e));let t=this.levelMap.get(e);return t||(t=new Map,this.levelMap.set(e,t)),t}_trimBitset(e){const t=e-20;t>0&&this.levelMap.forEach((e=>{e.delete(t)}))}_keysForStateComplete(e){const t=[];for(let[s,i]of e)i.state===Mt.COMPLETE&&t.push(s);return t}}class Bt{constructor(){this.levelMap=new Map}totalLevels(){return this.levelMap.size}has(e,t){return this._createOrGetMap(t).has(e)}delete(e,t){return this._createOrGetMap(t).delete(e)}decre(e,t){const s=this._createOrGetMap(t);if(s.has(e)){let t=s.get(e);1===t?s.delete(e):s.set(e,t-1)}}incre(e,t){const s=this._createOrGetMap(t);if(s.has(e)){let t=s.get(e);s.set(e,t+1)}else s.set(e,1)}clear(){this.levelMap.forEach((e=>{e.clear()}))}size(e){return this._createOrGetMap(e).size}_createOrGetMap(e){"number"!=typeof e&&(e=Number(e));let t=this.levelMap.get(e);return t||(t=new Map,this.levelMap.set(e,t)),t}}const xt=class{constructor(){this.peerMap=new Map}isEmpty(){return 0===this.peerMap.size}size(){return this.peerMap.size}clear(){this.peerMap.clear()}getPeers(){return[...this.peerMap.values()]}getPeerValues(){return this.peerMap.values()}hasPeer(e){return this.peerMap.has(e)}addPeer(e,t){this.peerMap.set(e,t)}getPeerIds(){return[...this.peerMap.keys()]}removePeer(e){this.peerMap.delete(e)}getPeersOrderByWeight(){const e=this.getAvailablePeers();return e.sort(((e,t)=>0===t.weight?1:0===e.weight?-1:t.weight-e.weight)),e}getPeer(e){return this.peerMap.get(e)}getAvailablePeers(){return this.getPeers().filter((e=>e.isAvailableUrgently))}},Ft=Symbol("shareOnly");class qt extends(n()){constructor(e,t){super(),this.engine=e,this.config=t,this.logger=e.logger,this.bufMgr=null,this.peerManager=new xt,this.fragLoading=!1,this._setupEngine&&this._setupEngine(),this.startCheckConnsTimer(),this.dcDownloadTimeout=t.dcDownloadTimeout,this[Ft]=!1,this.downloadOnly=!1,this.loadedPeerNum=0,this.minConns=5}get isMobileNet(){return this.engine.isMobileNet}startCheckConnsTimer(){this.checkConnsTimer=setInterval((()=>{this.logger.info("start check conns");const e=this.getStatsForPeer();let t=this.peersNum;const s=f();this.getPeers().forEach((i=>{t>this.minConns+1&&(s-i.dataExchangeTs>120||s-i.gotStatsTs>=83)?(this.logger.warn(`close dead peer ${i.remotePeerId} level ${i.currentLevel}`),i.close(!1),t--):i.connected&&i.sendMsgStats(t,e)}))}),4e4)}getStatsForPeer(){return{}}_handlePieceAborted(){}requestPeers(){const e=f();let t=0;for(let s of this.getPeers())s.mobileNet||s.super||(e-s.gotPeersTS<60?this.logger.warn(`${s.remotePeerId} just got peers, ignored`):(s.sendPeersRequest(),s.gotPeersTS=e,t++));return t}chokePeerRequest(t){const s={event:e.DC_CHOKE};t?t.sendJson(s):this._broadcastToPeers(s)}unchokePeerRequest(t){const s={event:e.DC_UNCHOKE};t?t.sendJson(s):this._broadcastToPeers(s)}stopRequestFromPeers(){for(let e of this.getPeers())e.choked=!0}resumeRequestFromPeers(){for(let e of this.getPeers())e.choked=!1}setShareOnly(){this[Ft]=!0}deletePeer(e){e.downloading&&this._handlePieceAborted(e.remotePeerId),this.peerManager.hasPeer(e.remotePeerId)&&this.peerManager.removePeer(e.remotePeerId),this._peersStats(this.peerManager.getPeerIds())}getPeers(){return[...this.peerManager.getPeerValues()]}addPeer(e){const{logger:t}=this;this.peerManager.addPeer(e.remotePeerId,e),this[Ft]&&(e.choked=!0);const s=this.peerManager.getPeerIds();this._peersStats(s);const{asn:i,country:r}=e.region||{};t.info(`add peer ${e.remotePeerId} country ${r||""} asn ${i||""}, now has ${s.length} peers`)}hasPeer(e){return this.peerManager.hasPeer(e)}get hasPeers(){return this.peersNum>0}get peersNum(){return this.peerManager.size()}get hasIdlePeers(){const{logger:e}=this,t=this.getIdlePeer().length;if(e.info(`peers: ${this.peersNum} idle peers: ${t}`),t<this.peersNum){const t=this.peerManager.getPeers(),s=t.filter((e=>e.downloading));e.warn(`downloading: ${s.length} choked: ${t.filter((e=>e.choked)).length}`);for(let t of s)e.warn(`${t.remotePeerId} loading ${t.segId} remains ${t.remainAttachments} total ${t.pieceMsg.attachments}`)}return t>0}getIdlePeer(){return this.peerManager.getAvailablePeers()}set bufferManager(t){this.bufMgr=t,t.on(e.BM_LOST,(({sn:e,segId:t,next:s,level:i})=>{this._broadcastLost(e,t,i),this.onBufferManagerLost(e,t,s,i)})).on(e.BM_SEG_ADDED,(e=>{this.onBufferManagerSegAdded(e)}))}onBufferManagerSegAdded(e){}_broadcastLost(t,s,i,r){this.config.live||this._broadcastToPeers({event:e.DC_LOST,sn:t,seg_id:s||void 0,level:i},r)}destroy(){const{logger:e}=this;this.peersNum>0&&this.peerManager.clear(),this.removeAllListeners(),clearInterval(this.checkConnsTimer),clearTimeout(this.checkTimer),e.warn("destroy BtScheduler")}notifyPeersLoaded(e){}_setupDC(t){const{logger:s}=this;t.on(e.DC_PIECE_ACK,(e=>{e.size&&(this.engine.fetcher.reportUploaded(e.size),s.info(`uploaded ${e.seg_id} size ${e.size} to ${t.remotePeerId}`))})).on(e.DC_PIECE_ABORT,(e=>{s.warn(`peer ${t.remotePeerId} download aborted, reason ${e.reason}`),this._handlePieceAborted(t.remotePeerId)})).on(e.DC_DISCONNECT,(()=>{this.peersNum>=this.minConns&&(this.logger.warn(`close disconnected peer ${t.remotePeerId}`),t.close(!1))}))}_broadcastToPeers(e,t){for(let s of this.getPeers())t&&s===t||s.sendJson(e)}_peersStats(e){this.engine.emitEvent("peers",e);const t=this.engine.config.getPeersInfo;I(t)&&t(e)}startCheckPeersTimer(){this.logger.info("startCheckPeersTimer");const e=()=>{this.checkPeers();const t=1e3*(0===(s=this.loadedPeerNum)?3:.5*s+1.67);var s;this.loadedPeerNum=0,this.checkTimer=setTimeout(e,t)};this.checkTimer=setTimeout(e,2e4)}removeStreamListener(e,t){const s=this.requestingMap.get(e);if(s)return void s.removeStreamListener(t);const i=this.segmentBuilderMap.get(e);i&&i.removeStreamListener(t)}setTargetPeersFromGroup(e,t,s,i){if(e.hasReversePeer){if((s=t.concat(s)).length>0)return this.targetPeers.forwardPeer=s[0],!0}else if(e.hasForwardPeer&&(i=t.concat(i)).length>0)return this.targetPeers.reversePeer=i[0],!0;return t.length>0?(e.hasForwardBuffer?this.targetPeers.reversePeer=t[0]:this.targetPeers.forwardPeer=t[0],!0):(this.targetPeers=R(t,s,i),this.targetPeers.some((e=>!!e)))}}const Wt=qt;class zt extends(n()){constructor(){super(),this.internalMap=new Map}has(e){return this.internalMap.has(e)}set(e,t){this.internalMap.set(e,t),v(this.internalMap,13,(e=>{e&&e.destroy()}))}get(e){return this.internalMap.get(e)}delete(e){const t=this.internalMap.get(e);t&&(t.destroy(),this.internalMap.delete(e))}get size(){return this.internalMap.size}clear(){this.internalMap.clear(),this.removeAllListeners()}}const Ut=0,Ht=1,Gt=2,jt=3;function Vt(e,t,s="main"){return"main"!==s&&"audio"!==s}function Xt(){const e=performance.now();return{trequest:e,tfirst:0,tload:0,aborted:!1,loaded:0,retry:0,total:0,chunkCount:0,bwEstimate:0,loading:{start:e,first:0,end:0},parsing:{start:0,end:0},buffering:{start:0,first:0,end:0}}}function Yt(e,t){let s,i,r,n,o;const a=performance.now();s=a-300,i=a-200,r=a,e.trequest=s,e.tfirst=i,e.tload=r,e.loading={first:s,start:i,end:r},n=o=t,e.loaded=n,e.total=o}class Jt extends(n()){constructor(){super(),this.UNSENT=0,this.OPENED=1,this.HEADERS_RECEIVED=2,this.LOADING=3,this.DONE=4,this.timeout=0,this.withCredentials=!1,this.status=0,this.readyState=this.UNSENT,this.headers=new Map,this.responseHeaders=null,this.on("load",(e=>{this.onload&&this.onload(e)})),this.on("abort",(e=>{this.onabort&&this.onabort(e)})),this.on("error",(e=>{this.onerror&&this.onerror(e)})),this.on("loadstart",(e=>{this.onloadstart&&this.onloadstart(e)})),this.on("progress",(e=>{this.onprogress&&this.onprogress(e)})),this.on("timeout",(e=>{this.ontimeout&&this.ontimeout(e)})),this.on("loadend",(e=>{this.onloadend&&this.onloadend(e)})),this.on("readystatechange",(()=>{this.onreadystatechange&&this.onreadystatechange()}))}setRequestHeader(e,t){this.headers.set(e,t)}addEventListener(e,t){this.addListener(e,t)}removeEventListener(e,t){this.removeListener(e,t)}overrideMimeType(){}getAllResponseHeaders(){if(!this.responseHeaders)return null;let e="";return this.responseHeaders.forEach(((t,s)=>{e+=`${s}: ${t}\n`})),e}getResponseHeader(e){return this.responseHeaders?this.responseHeaders.get(e):null}open(){this.readyState=this.OPENED,this.emit("loadstart")}abort(){this.readyState=this.DONE,this.status=0,this.emit("loadend")}send(){}_emitEvent(e){this.emit(e,{type:e,target:this})}}function Qt(){if(self.fetch&&self.AbortController&&self.ReadableStream&&self.Request)try{return new self.ReadableStream({}),!0}catch(e){}return!1}class Kt{constructor(e){this.fetchSetup=e.fetchSetup||Zt,this.xhrSetup=e.xhrSetup,function(e){try{new e}catch(e){return!1}return!0}(self.AbortController)&&(this.controller=new self.AbortController),this.stats=Xt(),this.packetSize=c,this.fakeXhr=new Jt}destroy(){this.loader=this.callbacks=null,this.abortInternal()}abortInternal(){const e=this.response;e&&e.ok||(this.stats.aborted=!0,this.callbacks&&this.callbacks.onUpdate&&this.callbacks.onUpdate(void 0,!1,!0),this.controller&&this.controller.abort())}abort(){this.abortInternal(),this.callbacks&&this.callbacks.onAbort&&this.callbacks.onAbort(this.stats,this.context,this.response)}load(e,t,s){const i=this.stats;i.trequest=i.loading.start=performance.now();let r=function(e,t){const s={method:"GET",mode:"cors",credentials:"same-origin",signal:t,headers:new self.Headers(Object.assign({},e.headers))};e.rangeEnd&&s.headers.set("Range","bytes="+e.rangeStart+"-"+String(e.rangeEnd-1));return s}(e,this.controller?this.controller.signal:void 0);const n="arraybuffer"===e.responseType,o=n?"byteLength":"length",a=s.onUpdate,h=s.onBodyStart;this.context=e,this.config=t,this.callbacks=s,this.xhrSetup&&(this.xhrSetup(this.fakeXhr,e.url),r=function(e,t){e.withCredentials&&(t.credentials="include");for(let[s,i]of e.headers)t.headers.set(s,i);return t}(this.fakeXhr,r)),this.request=this.fetchSetup(e,r),clearTimeout(this.requestTimeout),this.requestTimeout=setTimeout((()=>{this.abortInternal(),this.fakeXhr._emitEvent("timeout"),this.fakeXhr._emitEvent("loadend"),s.onTimeout&&s.onTimeout(i,e,this.response)}),this.fakeXhr.timeout||t.timeout);const{fakeXhr:l}=this;l.readyState=l.OPENED,l.emit("readystatechange"),l._emitEvent("loadstart"),fetch(this.request).then((t=>{if(this.response=this.loader=t,!t.ok){const{status:e,statusText:s}=t;throw a&&a(void 0,!1,!0),new es(s||"fetch, bad network response",e,t)}i.tfirst=i.loading.first=Math.max(performance.now(),i.loading.start),i.total=parseInt(t.headers.get("Content-Length")||"0");let s=0;try{const e=t.headers.get("Content-Range").split("/");2===e.length&&(s=parseInt(e[1],10))}catch(e){}const{fakeXhr:r}=this;return r.readyState=r.HEADERS_RECEIVED,r.responseHeaders=t.headers,r.emit("readystatechange"),a&&"0"!==i.total?(h&&h(i.total,s),this.loadProgressively(t,i,e,a)):(r.emit("progress",new ProgressEvent("progress",{lengthComputable:!1})),n?t.arrayBuffer():t.text())})).then((t=>{const{response:r}=this;clearTimeout(this.requestTimeout),i.tload=i.loading.end=Math.max(performance.now(),i.loading.first),i.loaded=i.total=t[o];const n={url:r.url,data:t};s.onProgress&&s.onProgress(i,e,t,r),s.onSuccess&&s.onSuccess(n,i,e,r)})).catch((t=>{if(clearTimeout(this.requestTimeout),i.aborted)return;a&&a(void 0,!1,!0);const r=t&&t.code||0,n=t?t.message:null;s.onError&&s.onError({code:r,text:n},e,t?t.details:null)}))}loadProgressively(e,t,s,i){const r=e.body.getReader();let n=0,a=0,h=(0,o.h)(0),l=!1;const d=()=>r.read().then((({value:s,done:r})=>{const{fakeXhr:u}=this;if(u.readyState!==u.LOADING&&(u.readyState=u.LOADING,u.emit("readystatechange")),s&&(n+=s.length),r){if(h.byteLength>0)if(n<=this.packetSize){const e=(0,o.h)(n);h.copy(e,0,a*this.packetSize,h.byteLength),i(e,!0)}else{const e=function(e,t){const s=e.byteLength-t,i=[];let r=t,n=Math.floor(s/c),a=s%c;for(let t=0;t<n;t++){const t=(0,o.h)(c);e.copy(t,0,r,r+c),i.push(t),r+=c}if(a>0){const t=(0,o.h)(a);e.copy(t,0,r,r+a),i.push(t)}return i}(h,a*this.packetSize);for(let t=0;t<e.length;t++)i(e[t],t===e.length-1)}const t=h.buffer,{fakeXhr:s}=this,{status:r,statusText:l,url:d}=e;return s.readyState=s.DONE,s.responseText=r,s.status=l,s.responseURL=d,s.responseType="arraybuffer",s.response=t,s.emit("readystatechange"),s._emitEvent("load"),s._emitEvent("loadend"),Promise.resolve(t)}if(t.loaded+=s.length,u.emit("progress",new ProgressEvent("progress",{lengthComputable:!0,loaded:t.loaded,total:t.total})),this.callbacks.onLoaded&&this.callbacks.onLoaded({total:t.total,loaded:t.loaded,first:!l},this.context),l=!0,h=o.h.concat([h,s]),n>=this.packetSize){n-=this.packetSize;const e=(0,o.h)(this.packetSize);h.copy(e,0,a*this.packetSize,(a+1)*this.packetSize),a++,i(e,!1)}return d()})).catch((()=>(this.fakeXhr._emitEvent("abort"),this.fakeXhr._emitEvent("loadend"),Promise.reject())));return d()}}function Zt(e,t){return new self.Request(e.url,t)}class es extends Error{constructor(e,t,s){super(e),this.code=t,this.details=s}}class ts extends(n()){constructor(e,t,s=!1){super(),this.coordinator=e,this.logger=t,this.rangeSupported=s,this.rangeStart=0,this.rangeEnd=0,this.httpLoadTime=2e3,this.proxied=!1,this.forwardPeer=null,this.reversePeer=null,this.bufArr=[],this.forwardBufList=[],this.reverseBufList=[],this.forwardOffset=-1,this.reverseOffset=1e4,this.timeStart=0,this.timeReceivePiece=0,this.timer=void 0,this.destroyed=!1,this.forwardStreamListeners=[],this.reverseStreamListeners=[],this.rangeRequesting=!1,this.waitingRemain=!1,this.httpLoaded=0,this.p2pLoaded=0,this.deadline=0,this.forwardCanceled=!1,this.reverseCanceled=!1,this.firstReceived=!1}get isDownloading(){return this.timeReceivePiece>0}get isAlmostDeadline(){if(this.rangeRequesting)return!0;if(this.isEmpty)return!1;if(0===this.deadline)return!0;const e=this.deadline-performance.now();return e<=0||(this.p2pSpeed>3*this.minRequiredSpeed(e)||e<500)}hasPeer(e){return!!e&&(e===this.forwardPeer||e===this.reversePeer)}get streamListeners(){return[...this.reverseStreamListeners,...this.forwardStreamListeners].length}_notifyStreamListenersAbort(){const{sn:e,seg_id:t}=this.pieceMsg,s=[...this.reverseStreamListeners,...this.forwardStreamListeners];for(let i of s){const{handler:s}=i;s(e,t,!0,"aborted by synthesizer")}this._resetStreamListeners()}_resetStreamListeners(){this.reverseStreamListeners.length=0,this.forwardStreamListeners.length=0}_notifyStreamListenersRemain(){if(this.forwardStreamListeners.length>0){for(let e=this.forwardOffset+1;e<this.bufArr.length;e++)this._notifyStreamListeners(!1,this.bufArr[e],e);this.forwardStreamListeners=[]}if(this.reverseStreamListeners.length>0){for(let e=this.reverseOffset-1;e>=0;e--)this._notifyStreamListeners(!0,this.bufArr[e],e);this.reverseStreamListeners=[]}}addStreamListener(e,t,s){(e?this.reverseStreamListeners:this.forwardStreamListeners).push({handler:s,peerId:t})}removeStreamListener(e){const{sn:t,seg_id:s}=this.pieceMsg,i=i=>i.filter((i=>i.peerId!==e||(i.handler(t,s,!0,"aborted by cancel"),!1)));this.forwardStreamListeners=i(this.forwardStreamListeners),this.reverseStreamListeners=i(this.reverseStreamListeners)}setTimeout(e=0){let t=performance.now();e<=0?setTimeout((()=>{this._handleTimeout(!1,!1)}),0):(this.deadline=t+e,this._startTimer(e))}setExtra(e={}){e.url&&(this.url=e.url),e.rangeStart&&(this.rangeStart=e.rangeStart),e.rangeEnd&&(this.rangeEnd=e.rangeEnd),e.httpLoadTime&&(this.httpLoadTime=e.httpLoadTime),e.proxied&&(this.proxied=!0),e.xhrSetup&&(this.xhrSetup=e.xhrSetup),e.headers&&(this.headers=e.headers),e.segId&&!this.pieceMsg.seg_id&&(this.pieceMsg.seg_id=e.segId)}get hasForwardPeer(){return!!this.forwardPeer}get hasReversePeer(){return!!this.reversePeer}hasPeerId(e){return this.forwardPeer&&this.forwardPeer.remotePeerId===e||this.reversePeer&&this.reversePeer.remotePeerId===e}get isEmpty(){return null===this.forwardPeer&&null===this.reversePeer}get isFull(){return this.forwardPeer&&this.reversePeer}setForwardPeer(e){this.forwardPeer=e,this.reversePeer&&this._print(),this._setupPeer(e,!1)}setReversePeer(e){this.reversePeer=e,this.forwardPeer&&this._print(),this._setupPeer(e,!0)}setPeer(e,t){t?this.setReversePeer(e):this.setForwardPeer(e)}deletePeer(e){const t=e===this.reversePeer;this._detachPeer(e),t?this.reversePeer=null:this.forwardPeer=null,this.isEmpty&&this._handleTimeout(!1,!1)}terminate(){this.hasPartialBuffer&&(this.deadline=performance.now(),this.httpLoadTime+=5e3),this._handleTimeout(!1,!1)}get hasPartialBuffer(){return this.hasForwardBuffer||this.hasReverseBuffer}get hasForwardBuffer(){return this.forwardOffset>=0}get hasReverseBuffer(){return this.pieceMsg&&this.reverseOffset<this.pieceMsg.attachments}get isForwardBufferFull(){return this.pieceMsg&&this.forwardOffset>=this.pieceMsg.attachments-1}get isReverseBufferFull(){return this.reverseOffset<=0}_cancelP2p(e=!1){const{seg_id:t,sn:s,level:i}=this.pieceMsg;!this.forwardPeer||this.isForwardBufferFull||this.forwardCanceled||(this.forwardPeer.cancelDownload(s,i,t),this.forwardCanceled=!0),e||!this.reversePeer||this.isReverseBufferFull||this.reverseCanceled||(this.reversePeer.cancelDownload(s,i,t),this.reverseCanceled=!0)}detachPeers(){this._detachPeer(this.forwardPeer),this._detachPeer(this.reversePeer)}destroy(){clearTimeout(this.timer),this._notifyStreamListenersAbort(),this._cancelP2p(),this.removeAllListeners(),this.destroyed=!0,this._detachPeer(this.forwardPeer),this.forwardPeer=null,this.forwardOffset=-1,this._detachPeer(this.reversePeer),this.reversePeer=null,this.reverseOffset=1e4,this.bufArr=[],this.forwardStreamListeners=[],this.reverseStreamListeners=[],this.httpLoader&&(this.logger.warn("abort syn httpLoader"),this.httpLoader.abort())}_detachPeer(t){if(!t)return;const s=t===this.reversePeer?this.reverseEvents:this.forwardEvents;s&&t.off(e.DC_PIECE_DATA,s.onPieceData).off(e.DC_PIECE,s.onPiece).off(e.DC_PIECE_NOT_FOUND,s.onPieceNotFound).off(e.DC_PIECE_ABORT,s.onPieceAbort)}_receivePacket(t,s,i,r=!0){const{seg_id:n,sn:a,level:h,size:l,attachments:c}=this.pieceMsg,d=s-1;if(this.bufArr[d]?(this.logger.warn(`syn bufArr ${n} already has ${d} size ${i.byteLength}`),this.bufArr[d]=i):(r?this.p2pLoaded+=i.byteLength:this.httpLoaded+=i.byteLength,this.emit(e.SYN_PROGRESS,{total:l,loaded:this.p2pLoaded+this.httpLoaded,first:!this.firstReceived,segId:n,sn:a}),this.firstReceived=!0,this.bufArr[d]=i,t?this.reverseOffset=d:this.forwardOffset=d,this._notifyStreamListeners(t,i,d)),this.forwardOffset!==this.reverseOffset-1)return!0;this.forwardPeer&&(this.forwardPeer.miss=0),this.reversePeer&&(this.reversePeer.miss=0),clearTimeout(this.timer),this._notifyStreamListenersRemain();const u=l/(performance.now()-this.timeStart);let g=o.h.concat(this.bufArr);const f=g.byteLength;if(f===l){let t=g.buffer;const s=new Q(a,n,t,this.getFromPeerId(),h);this.emit(e.SYN_OUTPUT,s,{speed:u,p2p:this.p2pLoaded,http:this.httpLoaded})}else{this.logger.error(`${n} expectedSize ${l} != byteLength ${f} forward ${this.forwardOffset} reverse ${this.reverseOffset}`);for(let e=0;e<this.bufArr.length;e++)this.logger.error(`piece ${e} size ${this.bufArr[e].byteLength}`);this.emit(e.SYN_ERROR,this.pieceMsg,Ut),this._disconnectPeers()}}_disconnectPeers(){[this.forwardPeer,this.reversePeer].forEach((t=>{t&&t.emit(e.DC_ERROR,!0)}))}_setupPeer(t,s){const{logger:i}=this;0===this.timeStart&&(this.timeStart=performance.now());const r=(s,r,n,o,a,h)=>{if(this.destroyed)return;if(!this._validateMsg(s,h.level,r))return void i.error(`onPieceData ${r||s} not match ${JSON.stringify(this.pieceMsg)} from ${t.remotePeerId}`);if(o<this.pieceMsg.attachments&&n.byteLength!==c)return i.error(`${r} dataSn ${o} size is ${n.byteLength}`),this.emit(e.SYN_ERROR,this.pieceMsg,Ut),void this._disconnectPeers();const{reverse:l}=h;this._receivePacket(l,o,n)&&!this.waitingRemain&&!this.rangeRequesting&&this.deadline>0&&this._shouldSwitch()&&(i.warn("should switch to http"),clearTimeout(this.timer),this._handleTimeout(!1,!1))},n=e=>{if(this.destroyed)return;const{attachments:s,size:r,sn:n,level:o,seg_id:a,ext:h}=e;return r&&this._validateMsg(n,o,a)?this.pieceMsg.size&&r!==this.pieceMsg.size?(i.warn(`onPiece ${a} size not match`),t.cancelDownload(n,o,a),void this.deletePeer(t)):void(0===this.bufArr.length&&(this.pieceMsg={...this.pieceMsg,seg_id:a,size:r,attachments:s,ext:h},this.reverseOffset=s,this.bufArr=new Array(s),this.timeReceivePiece=performance.now())):(i.warn(`onPiece ${JSON.stringify(e)} not match ${JSON.stringify(this.pieceMsg)}`),t.cancelDownload(n,o,a),void this.deletePeer(t))},o=e=>{this.destroyed||this.deletePeer(t)},a=()=>{this.destroyed||this.deletePeer(t)},h={onPieceData:r,onPiece:n,onPieceNotFound:o,onPieceAbort:a};s?this.reverseEvents=h:this.forwardEvents=h,t.on(e.DC_PIECE_DATA,r).once(e.DC_PIECE,n).once(e.DC_PIECE_NOT_FOUND,o).once(e.DC_PIECE_ABORT,a)}_shouldSwitch(){const e=c,t=this.pieceMsg.size-e*this.loadedPackets;return this.coordinator.shouldSwitchToHttp(t,this.deadline,this.p2pSpeed,e,this.httpLoadTime)}_startTimer(e,t=!0){this.timer=setTimeout(this._handleTimeout.bind(this,t),e)}get loadedPackets(){return this.pieceMsg.attachments-(this.reverseOffset-this.forwardOffset-1)}_handleTimeout(t=!1,s=!0){if(this.destroyed)return;const{seg_id:i,size:r,attachments:n}=this.pieceMsg;if(!r||0===this.timeReceivePiece)return this.logger.warn(`syn load timeout ${i} url ${this.url}`),void this.emit(e.SYN_ERROR,this.pieceMsg,Ut);if(t&&this.timeReceivePiece>0&&(this.logger.warn(`syn ${this.loadedPackets} of ${n} packets loaded`),this.shouldWaitForRemain(this.httpLoadTime))){const e=this.httpLoadTime;return this.waitingRemain=!0,this.logger.info(`syn wait for remain ${e}`),void this._startTimer(e,!1)}if(s){const e=[this.forwardPeer,this.reversePeer].filter((e=>!!e)).sort(((e,t)=>e.currentLoadSpeed()-t.currentLoadSpeed())).shift();e&&e.loadtimeout()}if(this.rangeSupported&&this.url&&this.hasPartialBuffer)return this._cancelP2p(!0),this._loadRemainBufferByHttp();this._notifyStreamListenersAbort(),this.emit(e.SYN_ERROR,this.pieceMsg,jt)}shouldWaitForRemain(e){if(e<=0||this.isEmpty||this.streamListeners>0)return!1;const t=performance.now()-this.timeStart;return t<500||t<1e3&&this.timeReceivePiece>0&&e>3e3||this.shouldWaitForRemainUrgent(e)}shouldWaitForRemainUrgent(e){if(0===this.timeReceivePiece||e<=0)return!1;const t=this.p2pSpeed,s=this.minRequiredSpeed(e);return this.logger.info(`syn remainTime ${e} speed ${t} required ${s}`),t>=s}minRequiredSpeed(e){let t=0;return[this.forwardPeer,this.reversePeer].forEach((e=>{e&&(t+=e.loadedBytes())})),(this.pieceMsg.size-t)/e}get p2pSpeed(){let e=0;return[this.forwardPeer,this.reversePeer].forEach((t=>{t&&(e+=t.currentLoadSpeed())})),e}getFromPeerId(){const{forwardPeer:e,reversePeer:t}=this;return this.isFull&&e!==t?`${e.remotePeerId}:${t.remotePeerId}`:e?`${e.remotePeerId}`:t?`${t.remotePeerId}`:""}getStreamInfo(e){const t=e?this.reverseBufList:this.forwardBufList;let s,i;return t.length<this.pieceMsg.attachments?(s=this.isFull?"WaitPartialDouble":"WaitPartialSingle",i=1):(s=this.isFull?"SynFullDouble":"SynFullSingle",i=0),{from:s,incompletes:i,bufferList:t}}_loadRemainBufferByHttp(){if(this.rangeRequesting)return;const{size:t,seg_id:s}=this.pieceMsg,{logger:i}=this,r=this.rangeEnd>0?this.rangeEnd-1:0;let n=this.forwardOffset;const o=performance.now();let a=this.deadline+this.httpLoadTime-o;a<2e3?a=2e3:a>8e3&&(a=8e3),this.rangeRequesting=!0;let h=_e(n,this.reverseOffset,t,this.rangeStart,r);const c=h.rangeEnd-h.rangeStart;i.info(`listeners ${this.streamListeners} continue download ${s} from ${this.url} range: ${h.rangeStart}-${h.rangeEnd} timeout ${a}`),this.hasPartialBuffer||(h={});const d=new Kt({xhrSetup:this.xhrSetup});this.httpLoader=d;let u={url:this.proxied?g(this.url,l,!0):this.url,...h};const f={timeout:a};let p,m=n+1;const _={onUpdate:(t,s,i)=>{if(!this.destroyed)if(i)this.emit(e.SYN_ERROR,this.pieceMsg,Ht);else{if(s){const e=p/(performance.now()-o);this.coordinator.addHttpSpeed(e),this.httpLoader=void 0}this.bufArr[m]||this._receivePacket(!1,m+1,t,!1),m++}},onBodyStart:(t,r)=>{if(0===r&&i.warn(`range request fileSize ${r}`),this.destroyed)return;const{size:n}=this.pieceMsg;if(p=t,t!==n||0!==r&&r!==n){let s=!1;r>0&&r!==n?(i.error(`onBodyStart fileSize ${r} != ${n}`),s=!0):t!==c&&(i.error(`onBodyStart size ${t} != expectedSize ${c}`),s=!0),s&&this.emit(e.SYN_ERROR,this.pieceMsg,Ht)}else i.warn(`syn range request ${s} resp whole ts`),m=0},onError:t=>{this.destroyed||(i.error(`httpLoader error ${t.text}`),this.emit(e.SYN_ERROR,this.pieceMsg,Ht))},onTimeout:()=>{this.destroyed||(i.warn("httpLoader timeout"),this.emit(e.SYN_ERROR,this.pieceMsg,Gt))}};d.load(u,f,_)}_print(){const{seg_id:e,sn:t}=this.pieceMsg;this.logger.info(`syn parallel loading ${e||t}`)}}class ss extends ts{constructor(e,s,i,r,n,o=!1,a){super(e,s,o,a),this.pieceMsg={event:t.DC_PIECE,sn:i,level:r,seg_id:n},a&&this.setExtra(a)}get segId(){return this.pieceMsg.seg_id}_notifyStreamListeners(e,t,s){const{sn:i,seg_id:r,attachments:n}=this.pieceMsg,o=e&&0===s||!e&&s===n-1,a=e?this.reverseStreamListeners:this.forwardStreamListeners;e?this.reverseBufList.push(t):this.forwardBufList.push(t),o&&(this.forwardBufList.push([...this.reverseBufList].reverse()),this.reverseBufList.push([...this.forwardBufList].reverse()));for(let e of a){const{handler:s}=e;s(i,r,!1,t,o)}o&&this._resetStreamListeners()}_validateMsg(e,t,s){return(!this.pieceMsg.seg_id||s===this.pieceMsg.seg_id)&&(e===this.pieceMsg.sn&&t===this.pieceMsg.level)}}class is{constructor(){this.meanHttpSpeed=0}addHttpSpeed(e){this.meanHttpSpeed=.4*this.meanHttpSpeed+.6*e}shouldSwitchToHttp(e,t,s,i,r){if(this.meanHttpSpeed<=0)return!1;if(s>=this.meanHttpSpeed)return!1;if(this.meanHttpSpeed*r>=e)return!1;return((r+t-performance.now())*this.meanHttpSpeed-e)/(this.meanHttpSpeed-s)*s<i}}class rs extends Wt{constructor(e,t){super(e,t),this.prefetchOnly=t.prefetchOnly,this.bitset=new $t(t.live||!1),this.bitCounts=new Bt,this.requestingMap=new zt,this.segmentBuilderMap=new zt,this.allowP2pLimit=t.httpLoadTime+1.5,this.playlistInfo=new Map,this.isUploader=!1,this.isReceiver=!1,this.targetPeers={},this.mBufferedDuration=0,this.sequential=!0,this.coordinator=new is,this.loadingSegId="",this.loadingSN=0,this.currPlaySN=0,this.currLostSN=-1,this.nextLostSN=-1,this.config.live?this.maxPrefetchCount=10:(this.maxPrefetchCount=150,this.startCheckPeersTimer())}get httpRangeSupported(){return this.config.httpRangeSupported}handshakePeer(e){this._setupDC(e);const{asn:t,country:s}=this.engine.fetcher.announceInfo;e.sendMetaData(this.bitset.allArray(),!0,this.peersNum,{asn:t,country:s},this.isMobileNet)}_receiveDCHave(e,s,i,r){this.bitset.has(e,s)||this.bitCounts.incre(e,s),r.isAvailableUrgently&&this.emit(t.SCH_DCHAVE,i)}_setupDC(e){super._setupDC(e),e.on(t.DC_HAVE,(t=>{if(e.bitset&&t.sn>=0){const{sn:s,level:i,complete:r,seg_id:n}=t,o=r?Mt.COMPLETE:Mt.PARTIAL_FORWARD;e.bitset.add(s,i,n,o),this._receiveDCHave(s,i,n,e),e.isAvailableUrgently&&this._handleDCHave(e,s,i,n,o)}})).on(t.DC_HAVE_REVERSE,(t=>{if(e.bitset&&t.sn>=0){const{sn:s,level:i,seg_id:r}=t;e.bitset.hasCompleteOr(s,i,Mt.PARTIAL_REVERSE)||e.bitset.add(s,i,r,Mt.PARTIAL_REVERSE),this._receiveDCHave(s,i,r,e),e.isAvailableUrgently&&this._handleDCHave(e,s,i,r,Mt.PARTIAL_REVERSE)}})).on(t.DC_LOST,(t=>{if(!e.bitset)return;const{sn:s,level:i}=t;e.bitset.has(s,i)&&(e.bitset.delete(s,i),this.bitCounts.decre(s,i))})).on(t.DC_PIECE,(e=>{e.ext&&e.ext.incompletes>=7||this.notifyAllPeers(e.sn,e.level,e.seg_id,e.reverse?Mt.PARTIAL_REVERSE:Mt.PARTIAL_FORWARD)})).on(t.DC_PIECE_CANCEL,(t=>{const{sn:s,level:i}=t,r=ve(s,i);this.removeStreamListener(r,e.remotePeerId)})).on(t.DC_PIECE_NOT_FOUND,(t=>{const{sn:s,level:i}=t;e.bitset.delete(s,i),this.bitCounts.decre(s,i),e.checkIfNeedChoke(!0)})).on(t.DC_DISCONNECT,(()=>{this.cleanRequestingMap(e.remotePeerId)})).on(t.DC_REQUEST,(async t=>{const{logger:s}=this,{sn:i,level:r,reverse:n}=t;this.isUploader=!0;let o=t.seg_id;o||(o=await this.bufMgr.getSegIdBySN(i));const a=()=>{this.bitset.delete(i,r),e.sendPieceNotFound(i,o,{level:r}),this._broadcastLost(i,o,r,e)},h=await this.bufMgr.getSegById(o),l=ve(i,r),c=this.requestingMap.get(l);let d=!1;c&&c.isDownloading&&(d=!0);const u=this.segmentBuilderMap.get(l);if(h)s.info(`found seg ${o} from bufMgr`),h.level===r?e.sendBuffer(h.sn,h.segId,h.data,{from:"Cache",level:h.level,reverse:n}):a();else if(!n&&u)s.info(`peer request ${i} wait from builder, sent ${u.bufferList.length}`),L(e,u,u.pieceMsg,u.bufferList,u.source,1);else if(d){s.info(`syn had ${c.loadedPackets} packets, wait remain from upstream ${c.getFromPeerId()}`);const t={...c.pieceMsg,reverse:n},{from:i,incompletes:r,bufferList:o}=c.getStreamInfo(n);L(e,c,t,o,i,r)}else a()}))}handleMetaData(e,t){if(t.field){e.bitset=new $t(this.config.live,t.field);for(let e in t.field){const s=Number(e);if(s<0)continue;t.field[s].forEach((e=>{this.bitset.has(e,s)||this.bitCounts.incre(e,s)}))}this.addPeer(e),this.downloadOnly&&this.chokePeerRequest(e)}}peersHas(e,t){return this.bitCounts.has(e,t)}deletePeer(e){if(this.peerManager.hasPeer(e.remotePeerId)&&e.bitset){const t=e.bitset.allArray();for(let e in t){const s=Number(e),i=t[s];i&&i.forEach((e=>{this.bitCounts.decre(e,s)}))}}this.cleanRequestingMap(e.remotePeerId),super.deletePeer(e)}hasAndSetTargetPeer(e,t,s,i){const{logger:r,config:n}=this;this.waitForPeer&&(this.mBufferedDuration=i=n.waitForPeerTimeout+n.httpLoadTime);let o=1e3*(i-n.httpLoadTime);const a=n.httpLoadTime+1.5;if(r.info(`bufferedDuration ${1e3*i} remainLoadTime ${o}`),i<=a)return!1;const h=ve(e,t),l=this.requestingMap.get(h);if(l){const c=l.segId;if(c&&c!==s)return r.warn(`syn segId ${c} not match ${s}`),this.requestingMap.delete(h),this._searchAvailablePeers(e,t,s);if(!l.shouldWaitForRemain(o)){if(r.warn(`syn prefetch timeout at ${e}`),l.isFull)return!1;const o=this.peerManager.getPeersOrderByWeight();let[h,c,d]=Ot(o,e,t,s);return!!this.setTargetPeersFromGroup(l,h,c,d)||!l.isEmpty&&n.httpRangeSupported&&i>a+1}return r.info(`prefetch ${e} wait for remain`),!0}return this._searchAvailablePeers(e,t,s)}_searchAvailablePeers(e,t,s){if(!this.hasIdlePeers||!this.peersHas(e,t))return!1;const i=this.peerManager.getPeersOrderByWeight(),[r,n]=Nt(i,e,t,s);return this.targetPeers={forwardPeer:r,reversePeer:n},[r,n].some((e=>!!e))}reportTraffic(e,t,s){const{fetcher:i}=this.engine;i&&(e>0&&i.reportFlow(e),t>0&&i.reportDCTraffic(t,s))}notifyAllPeers(e,t,s,i=Mt.COMPLETE){if(!s)return void this.logger.error("segId is required");if(this.downloadOnly)return;const{live:r}=this.config;if(this.bitset.has(e,t,i))return;const n=((e,t,s)=>`${e}-${t}-${s}`)(e,t,i);let o;i!==Mt.PARTIAL_REVERSE&&(o=i===Mt.COMPLETE);const a=this.requestingMap.get(ve(e,t));for(let h of this.getPeers())a&&a.hasPeer(h)||h.notifySet.has(n)||h.bitset.hasCompleteOr(e,t,i)||h.uploading||(h.sendMsgHave(e,s,{level:t,reverse:i===Mt.PARTIAL_REVERSE,complete:o}),h.notifySet.add(n),r&&P(h.notifySet,20))}checkPeers(){const{logger:e,config:t,engine:s}=this,i=this.requestingMap.size;if(i>5&&(e.warn(`requestingMap size ${i}`),i>9))return;if(!this.hasPeers)return;const r=t.live;if(this.fragLoading&&!r)return void e.warn("loading urgently, skip prefetch");const{currentLevel:n}=s;if(0===this.bitCounts.size(n))return;if(!r&&this.nextLostSN>=0&&this.nextLostSN>=this.currPlaySN-10)return;let o=this.peerManager.getPeersOrderByWeight();if(0===o.length)return;let a=0,{prefetchNum:h,endSN:l,startSN:c}=t;if(r&&(h=3),this.mBufferedDuration<this.allowP2pLimit){if(!r)return;h=1}let d=0,u=this.loadingSN+1;if(this.prefetchOnly&&u++,!r)if(this.loadingSN>=l&&!this.bufMgr.overflowed)u=c;else{const e=Math.min(...o.filter((e=>e.endSN>=u)).map((e=>e?e.startSN:1/0)));if(!isFinite(e))return;u<e&&(u=e)}for(;a<h&&d<this.maxPrefetchCount&&(r||!(u>l))&&!(r&&u>this.loadingSN+3);){if(this.bitset.has(u,n)){u++;continue}const s=ve(u,n);if(this.bitCounts.has(u,n)&&!this.requestingMap.has(s)){let i=[null,null];if(r)i=Nt(o,u,n,void 0,!0);else for(let e of o)if(e.bitset.has(u,n)){const t=e.bitset.getState(u,n);let s;s=t===Mt.COMPLETE?0===p(0,1):t===Mt.PARTIAL_REVERSE,i[s?1:0]=e;break}if(i.some((e=>!!e))){const r=new ss(this.coordinator,this.logger,u,n,void 0,t.httpRangeSupported);this._setupSynthesizer(r),this.requestingMap.set(s,r),i.forEach(((t,s)=>{if(t&&a<h){a++;const i=1===s;r.setPeer(t,i),t.requestDataBySN(u,!1,{level:n,reverse:i}),e.info(`request prefetch ${u} level ${n} from peer ${t.remotePeerId} downloadNum ${t.downloadNum} reverse ${i}`)}})),o=this.peerManager.getPeersOrderByWeight()}}if(d++,u++,0===o.length)break}this.loadedPeerNum=a}onBufferManagerLost(e,t,s,i){this.currLostSN=e,s&&(this.nextLostSN=s),this.bitset.delete(e,i),this.bitCounts.delete(e,i)}cleanRequestingMap(e){const t=this.peerManager.getPeer(e);if(t)for(let[s,i]of this.requestingMap.internalMap){const r=s.split("-"),n=Number(r[1]),o=Number(r[0]);i.hasPeerId(e)&&(this.logger.info(`delete ${e} in synthesizer`),i.deletePeer(t),this.bitCounts.decre(n,o),t.bitset.delete(n,o))}}shouldWaitForNextSeg(){let e;return e=!this.isUploader&&(!!this.isReceiver||p(0,100)>20),this.isReceiver=this.isUploader=!1,e}updateLoaded(e,t,s){this.bitset.hasCompleteOr(e,t)||(this.bitset.add(e,t,s,Mt.COMPLETE),this.bitCounts.delete(e,t))}broadcastPlaylist(e,t){if(!this.config.live)return;const s=function(e){const t=e.split("\n");let s=0,i=0;for(let e of t){const t=/^#EXT-X-MEDIA-SEQUENCE:?(\-?[0-9.]*)?/.exec(e);if(t&&t[1]){s=parseInt(t[1],10);break}}for(let e of t)e.startsWith("#EXTINF")&&i++;return s+i-1}(t);if(!this.isMobileNet)for(let i of this.getPeers())i.sendMsgPlaylist(e,t,s);this.playlistInfo.set(e,{seq:s,data:t})}getPlaylistFromPeer(e){if(!this.config.live)return null;const{seq:t,data:s}=this.playlistInfo.get(e);for(let s of this.getPeers()){const i=s.getLatestPlaylist(e,t);if(i)return this.playlistInfo.set(e,i),i}return null}getBufferedDuration(){let{media:e,currentSrc:t}=this.engine;if(!e||e.src!==t&&0===e.currentTime){if(this.logger.info("try get video element"),e=pe(this.config.mediaElem,t),!e)return 5;this.engine.media=e}let s=0,i=e.currentTime,r=e.buffered;for(let e=r.length-1;e>=0;e--)if(i>=r.start(e)&&i<=r.end(e)){s=r.end(e)-i;break}return this.mBufferedDuration=s,s>0?s:0}destroy(){super.destroy(),this.requestingMap.clear(),this.segmentBuilderMap.clear(),this.engine.removeAllListeners(t.MEDIA_REBUFFER)}clearCache(){"SegmentStore"===this.bufMgr.name?this.engine.emit(t.BM_FATAL_ERROR):this.bufMgr.clear(),this.bitset.clear()}_handleSynOutput(e,t,s,i){this.logger.info(`syn output ${e} http ${t} p2p ${s}`)}_handleSynError(e,t,s,i){const{logger:r}=this;r.warn(`SYN_ERROR ${t}-${s} code ${i}`),i!==Ut&&e.hasPartialBuffer&&(s>this.loadingSN||s===this.loadingSN&&e.streamListeners>0&&e.rangeRequesting)?r.warn(`syn abort ${s} with partial buffer`):this.requestingMap.delete(ve(s,t))}_notifySynthesizer(e,t,s,i,r,n=!0){const{logger:o}=this,a=this.requestingMap.get(ve(s,i));if(!a)return;const h=a.segId;function l(r,n){n?e.requestDataById(t,s,!0,{level:i,reverse:r}):e.requestDataBySN(s,!1,{level:i,reverse:r})}function c(){return r===Mt.PARTIAL_FORWARD||r===Mt.COMPLETE}function d(){return r===Mt.PARTIAL_REVERSE||r===Mt.COMPLETE}t&&h&&t!==h?o.warn(`notifySynthesizer segId ${t} not match ${h}`):a.isFull||!this.prefetchOnly&&a.isAlmostDeadline||(a.isEmpty?a.hasForwardBuffer&&d()?(a.setReversePeer(e),l(!0,n)):a.hasReverseBuffer&&c()&&(a.setForwardPeer(e),l(!1,n)):!a.hasForwardPeer&&c()?(a.setForwardPeer(e),l(!1,n)):!a.hasReversePeer&&d()&&(a.setReversePeer(e),l(!0,n)))}_setupEngine(){this.engine.on(t.MEDIA_REBUFFER,(e=>{const{prefetchOnly:t,live:s}=this.config;t||s||(e&&!this.prefetchOnly&&this.logger.warn("rebuffer reach limit"),this.prefetchOnly=e)}))}getStatsForPeer(){const{currentLevel:e,media:t}=this.engine,s={level:e};if(t&&!this.config.live){const{currentTime:e}=t;s.pos=Math.round(e)}return s}checkSynthesizer(e,t){const s=ve(e,t),i=this.requestingMap.get(s);i&&(0===i.streamListeners?(this.logger.info(`destroy syn ${s} without listeners`),this.requestingMap.delete(s)):this.logger.info(`keep syn ${s} with listeners`))}setupSynForLoad(e,t,s,i,r){const{forwardPeer:n,reversePeer:o}=this.targetPeers,a=ve(e,t);let h=this.requestingMap.get(a);h?h.setExtra(i):(h=new ss(this.coordinator,this.logger,e,t,s,this.httpRangeSupported,i),this._setupSynthesizer(h),this.requestingMap.set(a,h)),n&&(h.setForwardPeer(n),n.requestDataById(s,e,!0,{level:t})),o&&(h.setReversePeer(o),o.requestDataById(s,e,!0,{level:t,reverse:!0})),h.isEmpty&&(r=0),this.logger.info(`syn setTimeout ${r}`),h.setTimeout(r)}}class ns{constructor(t,s,i,r){this.bufferList=[],this.streamListeners=[],this.finished=!1,this.packetSize=c,this.attachments=r%this.packetSize==0?r/this.packetSize:Math.floor(r/this.packetSize)+1,this.pieceMsg={event:e.DC_PIECE,attachments:this.attachments,seg_id:i,sn:t,level:s,size:r,reverse:!1},this.sink=(0,o.h)(0),this.source="HttpStream"}receiveBytes(e,t){e.byteLength&&(this.sink=o.h.concat([this.sink,e]),this.bufferList.push(e),t&&(this.finished=!0),this._notifyStreamListeners(e))}getCompleteBuffer(){return this.sink.buffer}destroy(){this.finished||this._notifyStreamListenersAbort()}addStreamListener(e,t,s){this.streamListeners.push({handler:s,peerId:t})}removeStreamListener(e){const{sn:t,seg_id:s}=this.pieceMsg;this.streamListeners=this.streamListeners.filter((i=>i.peerId!==e||(i.handler(t,s,!0,"aborted by cancel"),!1)))}_notifyStreamListenersAbort(){const{sn:e,seg_id:t}=this.pieceMsg;for(let s of this.streamListeners){const{handler:i}=s;i(e,t,!0,"aborted by httpLoader")}this.streamListeners.length=0}_notifyStreamListeners(e){const{sn:t,seg_id:s}=this.pieceMsg;for(let i of this.streamListeners){const{handler:r}=i;r(t,s,!1,e,this.finished)}this.finished&&(this.streamListeners.length=0)}}const os=class extends rs{constructor(e,t){super(e,t),this.fragloadTimeout=e.hlsjs?10:6.8,this.resolveMap=new Map,this.segmentBypass=I(t.segmentBypass)?t.segmentBypass:()=>!1,!0===this.config.httpStreamEnabled?this.streamEnabled=Qt():this.streamEnabled=!1}async handleGetMediaData(e,s){const{logger:i,engine:r,config:n}=this;let{url:o,range:a}=e;const h=this._getFrag(o,a);if(!h)return i.warn(`cannot get frag ${o}`),s.postMessage({action:t.SW_GET_MEDIA});if(this.segmentBypass(o,h.tagList)||r.segmentLoadCount<n.startFromSegmentOffset)return i.info(`bypass frag ${o}`),s.postMessage({action:t.SW_GET_MEDIA});r.currentLevelIndex=h.level;const{sn:l,level:c}=h,d=this.config.segmentId(String(c),l,o,a),u=d===this.loadingSegId;if(u&&(i.warn(`duplicate request ${d}`),this.prefetchOnly))return s.postMessage({action:t.SW_GET_MEDIA});this.loadingSN=l,r.bufMgr&&(r.bufMgr.loadingSN=l),this.loadingSegId=d;const g=await this.bufMgr.getSegById(d);if(g)return i.info(`bufMgr found seg sn ${l} segId ${d}`),h.loaded=g.data.byteLength,h.fromPeerId=g.fromPeerId,r.emit(t.FRAG_LOADED,{url:o,sn:l,level:c,segId:d,loaded:h.loaded,duration:h.duration,byP2p:!0,fromPeerId:g.fromPeerId}),this._onFragLoaded(o,h),s.postMessage({action:t.SW_GET_MEDIA,data:{url:o,buffer:g.data}});if(this.fragLoading=!0,this.prefetchOnly)return i.info(`prefetchOnly, skip p2p load ${d}`),this._loadFragByHttp(h,s,l,d,o,c,a,1e3*this.fragloadTimeout);let f=this.getBufferedDuration();f>this.fragloadTimeout&&(f=this.fragloadTimeout),i.info(`handleGetMediaData sn ${l} bufferedDuration ${f}`);let p=1e3*(f-this.config.httpLoadTime);p<0?p=0:p>2800&&(p=2800);const m=ve(l,c);if(this.resolveMap.has(l)||u){let e=this.requestingMap.get(m);if(e||u){e&&this.httpRangeSupported&&(i.warn(`${l} is requesting, terminate syn wait for seg`),e.terminate());let r=setTimeout((()=>{i.info(`notify seg ${l} timeout`),r=-1,s.postMessage({action:t.SW_GET_MEDIA})}),p);this.bufMgr.once(`${t.BM_ADDED_SN_}${l}`,(e=>{r<0||e&&e.level===c&&(clearTimeout(r),i.info(`notify seg ${e.sn}`),s.postMessage({action:t.SW_GET_MEDIA,data:{url:o,buffer:e.data}}))}))}else i.warn(`${l} is requesting, fallback`),s.postMessage({action:t.SW_GET_MEDIA})}else if(this.hasAndSetTargetPeer(l,c,d,f)){await this._loadFragByP2p(h,s,l,d,o,c,a,p)||(i.warn(`p2p timeout switch to http load ${d}`),this._loadFragByHttp(h,s,l,d,o,c,a,1e3*this.fragloadTimeout))}else this._loadFragByHttp(h,s,l,d,o,c,a,1e3*this.fragloadTimeout)}_loadFragByHttp(e,s,i,r,n,o,a,h){const c=ve(i,o),d=g(n,l,!0),u=new Kt({});let f={url:d,...b(a)};const p={timeout:h},m={onError:e=>{e.text&&this.logger.warn(e.text),this.fragLoading=!1,s.postMessage({action:t.SW_GET_MEDIA})},onTimeout:()=>{this.logger.warn("http load timeout"),this.fragLoading=!1,s.postMessage({action:t.SW_GET_MEDIA})},onSuccess:async(a,h)=>{this.fragLoading=!1,this.notifyAllPeers(i,o,r);const{data:l}=a;let d=h.tload-h.trequest;if(this.logger.info(`HTTP loaded ${r} time ${d} speed ${l.byteLength/d}`),!await this.bufMgr.hasSegOfId(r)){const e=S(l).buffer,t=new Q(i,r,e,"",o);await this.bufMgr.putSeg(t),this.reportTraffic(l.byteLength,0,0)}this.segmentBuilderMap.delete(c),e.segId=r,e.loaded=l.byteLength,this.engine.emit(t.FRAG_LOADED,{url:n,sn:i,level:o,segId:r,loaded:e.loaded,duration:e.duration,byP2p:!1}),this._onFragLoaded(n,e),s.postMessage({action:t.SW_GET_MEDIA,data:{url:n,buffer:l}})}};if(this.streamEnabled){let e;m.onBodyStart=t=>{!e&&t>0&&(this.isMobileNet||this.notifyAllPeers(i,o,r,Mt.PARTIAL_FORWARD),e=new ns(i,o,r,t),this.segmentBuilderMap.has(c)||this.segmentBuilderMap.set(c,e))},m.onUpdate=(t,s,i)=>{if(i)return this.logger.warn(`loadFragByHttp ${r} aborted`),void this.segmentBuilderMap.delete(c);e&&e.receiveBytes(t,s)}}u.load(f,p,m)}async _loadFragByP2p(e,s,i,r,n,o,a,h){const{logger:l}=this;l.info(`p2p load sn ${i} segId ${r} level ${o}`);const c=await this.load(i,r,o,n,a,h);if(c&&c.data){const{data:a,fromPeerId:h,size:d}=c;if(l.info(`p2p loaded segId ${r} level ${o} size ${a.byteLength}`),!await this.bufMgr.hasSegOfId(r)){const e=new Q(i,r,a,h,o);l.info(`bufMgr putSeg ${i} level ${o}`),await this.bufMgr.putSeg(e)}return e.loaded=a.byteLength,e.fromPeerId=h,this.engine.emit(t.FRAG_LOADED,{url:n,sn:i,level:o,segId:r,loaded:e.loaded,duration:e.duration,byP2p:!0,fromPeerId:h}),this._onFragLoaded(n,e),s.postMessage({action:t.SW_GET_MEDIA,data:{url:n,buffer:a,size:d}}),!0}l.warn(`P2P timeout load segId ${r}`);const d=await this.bufMgr.getSegById(r);return!!d&&(this.fragLoading=!1,l.info(`already loaded seg sn ${i} segId ${r}`),s.postMessage({action:t.SW_GET_MEDIA,data:{url:n,buffer:d.data}}),!0)}notifySWMessage(e,s,i){if(e===t.SW_GET_MEDIA)this.engine.fetcher&&this.engine.fetcher.increMediaRequests(),this.handleGetMediaData(s,i);else this.logger.warn(`unknown action ${e}`)}_getFrag(e,t){return t&&(e=`${e}|${t}`),this.fragMap.get(e)}destroy(){super.destroy(),this.logger.warn("destroy HlsSwScheduler")}_onFragLoaded(e,t){if(this.updateLoaded(t.sn,t.level,t.segId),!this.engine)return;const{media:s,targetDuration:i}=this.engine;!this.config.live&&s&&i&&(this.currPlaySN=Math.ceil(s.currentTime/i))}load(e,t,s,i,r,n){const{logger:o,config:a}=this;this.isReceiver=!0;let h={...b(r),proxied:!0,url:i,segId:t,httpLoadTime:1e3*a.httpLoadTime};this.setupSynForLoad(e,s,t,h,n);const l=new Promise((i=>{const r={resolve:i,sn:e,level:s,segId:t};this.resolveMap.set(e,r)}));return this.targetPeers={},l}_setupSynthesizer(e){e.on(t.SYN_OUTPUT,(async(t,s)=>{const{config:i,logger:r}=this,{segId:n,sn:o,data:a,level:h}=t,{speed:l,http:c,p2p:d,underused:u}=s;this._handleSynOutput(n,c,d,u);const g=this.resolveMap.has(o);g&&(this.fragLoading=!1);if(i.validateSegment(n,new Uint8Array(a))){this.notifyAllPeers(o,h,n),this.bitset.has(o,h)||this.reportTraffic(c,d,l);const s=e.getFromPeerId();if(g){r.info(`receive criticalSeg seg_id ${n}`);const e=this.resolveMap.get(o);this.resolveMap.delete(o),e.resolve({data:a,fromPeerId:s})}else this.bitset.has(o,h)||(e.detachPeers(),await this.bufMgr.putSeg(t),this.updateLoaded(o,h,n))}else if(r.error(`segment ${n} validate failed`),g){const e=this.resolveMap.get(o);this.resolveMap.delete(o),e.resolve()}this.requestingMap.delete(ve(o,h))})).on(t.SYN_ERROR,((t,s)=>{const{sn:i,level:r}=t;if(this.resolveMap.has(i)){const e=this.resolveMap.get(i);this.resolveMap.delete(i),e.resolve()}this._handleSynError(e,r,i,s)}))}_handleDCHave(e,t,s,i,r){this._notifySynthesizer(e,i,t,s,r,this.resolveMap.has(t)),this.config.live&&j()((()=>{this.checkPeers()}))}};const as="2.7.10";class hs extends mt{static get name(){return"HlsSwP2pEngine"}static isServiceWorkerSupported(){return"serviceWorker"in navigator}constructor(e={},s=null){super(e,s),this.swSupported=self.isSecureContext,this.levels=[],this.bypassLevels=[],this.currentLevelIndex=0,this.currentSrc="",this.swVersion="",this.media=pe(this.config.mediaElem),this.workerKeepAliveInterval=null,this.fragMap=new Map,this.engineName=hs.name,hs.isServiceWorkerSupported()||(this.swSupported=!1,console.warn("service worker is not supported")),s&&(s.once("hlsDestroying",(()=>{this.destroy(),this.hlsjs=null})),s.on(this.HLSEvents.ERROR,this._onHlsError.bind(this)));const{channelIdMaker:i,signalId:r,browserInfo:n}=this.setup();if(this.onLevelLoaded=e=>{const{config:s}=this,o=e.live;s.live=o,this.targetDuration=e.averagetargetduration,this.browserInfo={...n,live:o,abr:this.multiBitrate||void 0,type:"hls_sw"},this.channel=`${i(this.currentSrc)}|${r}[${te.VERSION}]`,this.setupElectron();const a=this.initLogger();a.info("use HlsSwP2pEngine"),a.info(`engine version: ${ge.version} hls-proxy version: ${this.swVersion}`),a.info(`channel ${this.channel}`),o||(s.startSN=e.startSN,s.endSN=e.endSN,a.info(`startSN ${e.startSN} endSN ${e.endSN}`)),this._init(this.channel,this.browserInfo),this.off(t.LEVEL_LOADED,this.onLevelLoaded)},0===this.config.httpLoadTime&&(this.config.live?this.on(t.LEVEL_LOADED,(e=>{const{fragments:t,averagetargetduration:s,startSN:i}=e;this.config.httpLoadTime=this.determineHttpLoadTime(t,s),this.logger&&this.logger.info(`segments in playlist: ${t.length}, targetDuration: ${s} startSN ${i}`)})):this.config.httpLoadTime=3.5),this.on(t.LEVEL_LOADED,this.onLevelLoaded),this.onManifestParsed=(e,s)=>{this.multiBitrate=e.length>1,this.currentSrc=s,this.off(t.MANIFEST_PARSED,this.onManifestParsed)},this.on(t.MANIFEST_PARSED,this.onManifestParsed),this.onFragLoaded=({url:e})=>{const{config:s}=this;!this.rangeTested&&s.useHttpRange&&(m(e,null,null,2e3,!1).then((e=>{s.httpRangeSupported=!0})).catch((e=>{s.httpRangeSupported=!1,s.logger.warn(e)})).finally((()=>{s.logger.info(`http range is ${s.httpRangeSupported?"":"not "} supported`)})),this.rangeTested=!0,s.logger.info(JSON.stringify({engine:this.engineName,...this.browserInfo}))),this.off(t.FRAG_LOADED,this.onFragLoaded)},this.once(t.FRAG_LOADED,this.onFragLoaded),this.swSupported){const{serviceWorker:e}=navigator;e.onmessage=e=>{const{action:s,data:i}=e.data;if(!s)return;const r=e.ports[0];if(r){if(this.logger&&this.logger.info(`engine onmessage action ${s}`),r.postMessage({action:s,pong:!0}),!this.p2pEnabled||!i)return r.postMessage({action:s});switch(s){case t.SW_PLAYLIST:this.handlePlaylist(i,r);break;case t.SW_GET_PLAYLIST:this.handleGetPlaylist(i,r);break;default:if(s===t.SW_GET_MEDIA&&this.segmentLoadCount++,!this.scheduler)return r.postMessage({action:s});this.scheduler.notifySWMessage(s,i,r)}}else this.logger&&this.logger.error(`sender not found in action ${s}`)}}this.config.swAutoRegister&&this.registerServiceWorker().then((function(e){})).catch((e=>{console.warn("ServiceWorker registration failed ",e)}))}get currentLevel(){return this.currentLevelIndex}watchRebuffering(e){this.offEventRebuffer=function(e,t){let s=null;const i=()=>{s||(s=setTimeout((()=>{t()}),2500))},r=()=>{null!=s&&(clearTimeout(s),s=null)};return e.addEventListener("waiting",i),e.addEventListener("playing",r),()=>{e.removeEventListener("waiting",i),e.removeEventListener("playing",r)}}(e,(()=>{this.fetcher&&this.fetcher.increRebuffers()}))}handlePlaylist(e,s){const{config:i,logger:r}=this,{url:n,redirectedUrl:o,text:a,ver:h}=e;return this.swVersion=h,-1===function(e,t){for(var s=e.split("."),i=t.split("."),r=0;r<Math.max(s.length,i.length);r++){var n=parseInt(s[r]||0),o=parseInt(i[r]||0);if(n<o)return-1;if(n>o)return 1}return 0}(h,as)?(console.warn(`hls-proxy.js version should >= ${as}`),s.postMessage({action:t.SW_PLAYLIST})):0!==a.indexOf("#EXTM3U")||this.bypassLevels.indexOf(w(n))>=0?(r&&r.warn("no EXTM3U delimiter or bypass audio track"),s.postMessage({action:t.SW_PLAYLIST})):(s.postMessage({action:t.SW_PLAYLIST,data:{active:!0,debug:r&&r.isDebugLevel,sharePlaylist:!!i.sharePlaylist}}),this._parsePlaylist(a,w(n),o),void(this.workerKeepAliveInterval||navigator.serviceWorker.getRegistration().then((e=>{const t=()=>e&&e.active&&"activated"===e.active.state;if(!i.live&&t()){const s=new URL(e.scope);this.pathname=s.pathname+l;const i=()=>{clearInterval(this.workerKeepAliveInterval),this.workerKeepAliveInterval=null};this.workerKeepAliveInterval=setInterval((()=>{var e;t()?(e=this.pathname,new Promise(((t,s)=>{fetch(`${e}/keepalive/`).then((e=>{if(e.ok)return e.text();throw new Error("keepalive failed")})).then((e=>{if(""!==e.trim())throw new Error("not valid keepalive response");t()})).catch((e=>{s(e)}))}))).catch((e=>{console.error(e),i()})):i()}),15e3)}}))))}_parsePlaylist(e,s,i,r=!1){const n=s;i&&(s=i);const{config:o,logger:a}=this;if(e.indexOf("#EXTINF:")>0||e.indexOf("#EXT-X-TARGETDURATION:")>0){let i=0;const a=At.parseLevelPlaylist(e,s);this.levels.length>0?(i=this.levels.indexOf(w(a.url)),-1===i?(this.restartP2p(),this.currentSrc=n,i=0):this.currentLevelIndex=i):(""!==this.currentSrc&&n!==this.currentSrc&&this.restartP2p(),this.currentSrc=n,this.levels=[w(s)]),this.emit(t.LEVEL_LOADED,a),o.live&&v(this.fragMap,200),a.fragments.forEach((e=>{e.level=i;let t=h().buildAbsoluteURL(e.baseurl,e.relurl,{alwaysNormalize:!0});const s=e.byteRange;2===s.length&&(t=`${t}|bytes=${s[0]}-${s[1]-1}`),this.fragMap.set(t,e)})),!r&&o.sharePlaylist&&this.scheduler&&!this.scheduler.isMobileNet&&this.scheduler.broadcastPlaylist(w(s),e)}else{const i=At.parseMasterPlaylist(e,s);if(""!==this.currentSrc&&this.restartP2p(),i.length>0){i.sort(((e,t)=>e.bitrate-t.bitrate)),this.levels=i.map((e=>w(e.url)));let t=[];["AUDIO","SUBTITLES","CLOSED-CAPTIONS"].forEach((i=>{const r=At.parseMasterPlaylistMedia(e,s,i);"AUDIO"===i&&(t=r),r.forEach((e=>{e.url&&this.bypassLevels.push(w(e.url))}))})),t.length>0&&(o.segmentId!==Se&&o.segmentId||(o.segmentId=ye))}this.emit(t.MANIFEST_PARSED,i,n)}o.segmentId||(o.segmentId=o.strictSegmentId?ye:Se)}handleGetPlaylist(e,s){const{config:i,logger:r}=this;if(!r)return s.postMessage({action:t.SW_GET_PLAYLIST});const{scheduler:n}=this;if(!n)return void r.warn("scheduler not found");const{url:o}=e,a=w(o);if(n.playlistInfo.has(a)){const e=n.getPlaylistFromPeer(a);if(e&&e.data){const{data:i,seq:n}=e;return r.info(`got playlist from peer seq ${n}`),s.postMessage({action:t.SW_GET_PLAYLIST,data:{text:i}}),void this._parsePlaylist(i,w(o),void 0,!0)}}return s.postMessage({action:t.SW_GET_PLAYLIST})}async registerServiceWorker(){const{logger:e,config:t}=this;if(!this.swSupported){let e="sw is not supported";return y||(e="https is required when using ServiceWorker",console.warn(e)),Promise.reject(e)}return this.media=pe(t.mediaElem),this.media||e&&e.warn("no video element found"),fs.registerServiceWorker(t)}async unregisterServiceWorker(){clearInterval(this.workerKeepAliveInterval),this.workerKeepAliveInterval=null;const e="serviceWorker is not registered";return new Promise(((t,s)=>{const{serviceWorker:i}=navigator;i||s(e),i.getRegistration().then((i=>{i?i.unregister().then((()=>{t()})).catch((e=>{s(e)})):s(e)}))}))}async _init(e,t){const{logger:s,config:i}=this;if(!this.p2pEnabled||"undefined"==typeof self)return;const r=setInterval((()=>{const e=()=>this.hlsjs&&this.hlsjs.media;if(this.media){const t=e();t&&this.media!==t&&(this.media=t),clearInterval(r),this.watchRebuffering(this.media)}else this.media=e()||pe(i.mediaElem)}),3e3);let n=new os(this,i);n.fragMap=this.fragMap;try{await super._init(e,n,t)}catch(e){return void s.error(e)}n.server=this.fetcher,this.scheduler=n,this.p2pEnabled&&!this.tracker.connected&&this.tracker.resumeP2P()}restartP2p(){this.logger&&this.logger.warn("restart P2P"),this.disableP2P(),this.enableP2P(),this.config.strictSegmentId||this.config.segmentId!==ye||(this.logger&&this.logger.warn("reset hlsSegmentIdGenerator"),this.config.segmentId=null),this.on(t.LEVEL_LOADED,this.onLevelLoaded),this.on(t.MANIFEST_PARSED,this.onManifestParsed),this.on(t.FRAG_LOADED,this.onFragLoaded)}enableP2P(){return this.p2pEnabled?null:(this.logger&&this.logger.info("enable P2P"),this.config.p2pEnabled=this.p2pEnabled=!0,this)}disableP2P(){this.logger&&this.logger.warn("disable P2P"),this.offEventRebuffer&&this.offEventRebuffer(),this.p2pEnabled&&(this.config.p2pEnabled=this.p2pEnabled=!1,this.tracker&&this.tracker instanceof pt&&(this.tracker.stopP2P(),this.tracker={},this.fetcher=null,this.bufMgr.destroy(),this.bufMgr=null)),this.levels=[],this.currentLevelIndex=0,this.lastLevel=0,this.multiBitrate=!1,this.rangeTested=!1,this.currentSrc="",this.media=void 0,this.config.live=!1,this.removeAllListeners(t.MANIFEST_PARSED),this.removeAllListeners(t.LEVEL_LOADED),clearInterval(this.workerKeepAliveInterval),this.workerKeepAliveInterval=null}}const ls=hs;const cs=class extends rs{constructor(e,t){super(e,t),this.isHlsjs=!0,this.waitForPeer=t.waitForPeer||!1,this.waitForPeerTimeout=t.waitForPeerTimeout,this.waitingPeers=0,this.waitingSeg={},this.requestedSet=new Set}startWaitPeerTimer(){this.waitForPeer&&(this.waitForPeerTimer=setTimeout((()=>{this.waitForPeer&&(this.waitForPeer=!1,this.emit(t.SCH_WAIT_PEER))}),1e3*(this.waitForPeerTimeout+0)))}updatePlaySN(e){this.currPlaySN=e}load(e,t,s){let i;i=t.loadPolicy?t.loadPolicy.maxTimeToFirstByteMs:t.timeout,(!i||i>1e3*this.mBufferedDuration)&&(i=1e3*this.mBufferedDuration),this.isReceiver=!0;const{logger:r,config:n}=this;this.context=e;const{rangeStart:o,rangeEnd:a,url:h}=e,l=e.frag,{segId:c,sn:d,level:u}=l;this.callbacks=s,this.stats=Xt(),this.criticalSeg={sn:d,level:u,segId:c};let g=i-1e3*n.httpLoadTime;const f={rangeStart:Number(o),rangeEnd:Number(a),url:h,httpLoadTime:1e3*n.httpLoadTime-500,xhrSetup:n.xhrSetup,segId:c,headers:Object.keys(e.headers||{}).length>0?e.headers:void 0};this.setupSynForLoad(d,u,c,f,g),this.targetPeers={}}waitPeerNotifier(){return new Promise((e=>{this.waitForPeer||e(),setTimeout(e,1e3*this.waitForPeerTimeout),this.once(t.SCH_WAIT_PEER,e)}))}addPeer(e){if(super.addPeer(e),this.waitForPeer){const{level:s,sn:i}=this.waitingSeg,r=e.remotePeerId;e.bitset.has(i,s)&&i>0?(this.logger.info(`found initial seg ${s}-${i} from peer ${r}`),this.emit(t.SCH_WAIT_PEER)):this.waitingPeers===this.peersNum&&this.emit(t.SCH_WAIT_PEER)}}notifyPeersLoaded(e){this.logger.info(`notifyPeersLoaded ${e}`),this.waitForPeer&&(0===e?(this.waitForPeer=!1,this.emit(t.SCH_WAIT_PEER)):this.waitingPeers=e)}destroy(){super.destroy(),this.logger.warn("destroy HlsjsScheduler"),clearTimeout(this.waitForPeerTimer)}_setupDC(e){super._setupDC(e)}_setupSynthesizer(e){const s=()=>{this.bitCounts.has(this.loadingSN,this.engine.currentLevel)&&this.emit(t.SCH_DCHAVE,this.loadingSegId),this.criticalSeg||this.checkPeers()};e.on(t.SYN_OUTPUT,(async(t,i)=>{const{config:r,logger:n}=this,{segId:o,sn:a,data:h,level:l}=t,{speed:c,http:d,p2p:u,underused:g}=i;this._handleSynOutput(o,d,u,g);const f=this.criticalSeg&&this.criticalSeg.segId===o;if(r.validateSegment(o,new Uint8Array(h))){this.notifyAllPeers(a,l,o),this.bitset.has(a,l)||this.reportTraffic(d,u,c);const s=e.getFromPeerId();if(f){n.info(`receive criticalSeg seg_id ${o}`);let{stats:e}=this;e.tload=e.loading.end=performance.now(),e.loaded=e.total=h.byteLength,this.criticalSeg=null;const{frag:t}=this.context;t.fromPeerId=s,t.loadByP2P=!0,this.callbacks.onSuccess({data:h,url:this.context.url},e,this.context),this.callbacks=void 0}else this.bitset.has(a,l)||(e.detachPeers(),await this.bufMgr.putSeg(t),this.updateLoaded(a,l,o))}else n.error(`segment ${o} validate failed`),f&&this.callbacks.onTimeout(this.stats,this.context,null);this.requestingMap.delete(ve(a,l)),r.live&&s()})).on(t.SYN_ERROR,((t,i)=>{const{config:r}=this,{sn:n,level:o}=t;this.criticalSeg&&this.criticalSeg.sn===n&&(this.criticalSeg=null,this.callbacks.onTimeout(this.stats,this.context,null)),this._handleSynError(e,o,n,i),r.live&&s()})).on(t.SYN_PROGRESS,(({total:e,loaded:t,first:s,segId:i})=>{let{stats:r}=this;s&&r&&(r.tfirst=r.loading.first=Math.max(r.trequest,performance.now()));this.criticalSeg&&this.criticalSeg.segId===i&&this.callbacks&&this.callbacks.onLoaded&&this.callbacks.onLoaded({total:e,loaded:t,first:s},this.context)}))}_setupEngine(){super._setupEngine(),this.engine.on(t.FRAG_LOADING,(({sn:e,segId:t,byHttp:s,level:i})=>{this.loadingSN=e,this.loadingSegId=t,this.fragLoading=!0,s&&this.checkSynthesizer(e,i)})).on(t.FRAG_LOADED,(({sn:e,segId:t,byP2p:s,level:i})=>{this.fragLoading=!1,s||this.checkSynthesizer(e,i),this.updateLoaded(e,i,t)})).on(t.FRAG_CHANGED,(({sn:e})=>{this.updatePlaySN(e)}))}_handleDCHave(e,t,s,i,r){this._notifySynthesizer(e,i,t,s,r,this.criticalSeg&&this.criticalSeg.segId===i),this.config.live&&j()((()=>{this.checkPeers()}))}};class ds extends mt{static get name(){return"HlsjsP2pEngine"}constructor(e,t={}){if(super(t,e),!e)throw new TypeError("hlsjs instance is null");this.config.xhrSetup=e.config.xhrSetup,this.engineName=ds.name;const{channelIdMaker:s,signalId:i,browserInfo:r}=this.setup();this.config.waitForPeer&&this.config.sourceUrl?(this.config.trickleICE=!0,this.config.httpRangeSupported=!0,this._startEngine(this.config.sourceUrl,this.config.live,r,s,i)):this.config.waitForPeer=!1;const n=(t,o)=>{if(!o)return;const{config:a}=this,h=o.details,l=h.live;a.waitForPeer?(this.tracker&&this.tracker.scheduler.startWaitPeerTimer(),this.logger.info("waitForPeer mode")):this._startEngine(this.hlsjs.url,l,r,s,i,h),e.off(this.HLSEvents.LEVEL_LOADED,n)};e.on(this.HLSEvents.LEVEL_LOADED,n);const o=(e,t)=>{if(!t)return;const{config:s}=this,{fragments:i,averagetargetduration:r,startSN:n}=t.details;s.httpLoadTime=this.determineHttpLoadTime(i,r),this.logger.info(`segments in playlist: ${i.length}, targetDuration: ${r} startSN ${n}`)};0===this.config.httpLoadTime&&(this.config.live?e.on(this.HLSEvents.LEVEL_LOADED,o):this.config.httpLoadTime=3.5);const a=(t,s)=>{const{config:i}=this;s.audioTracks&&s.audioTracks.length>0&&(i.strictSegmentId||i.segmentId||(i.segmentId=ye)),i.segmentId||(i.segmentId=i.strictSegmentId?ye:Se);const r=s.levels.length;this.multiBitrate=r>1,e.off(this.HLSEvents.MANIFEST_PARSED,a)};e.on(this.HLSEvents.MANIFEST_PARSED,a),e.on(this.HLSEvents.DESTROYING,(()=>{e.off(this.HLSEvents.LEVEL_LOADED,o),this.destroy()}))}_startEngine(e,t,s,i,r,n={}){const{config:o}=this;o.live=t,this.browserInfo={...s,live:t,abr:this.multiBitrate||void 0,type:"hls"},this.channel=`${i(e)}|${r}[${te.VERSION}]`,this.setupElectron();const a=this.initLogger();a.info("use HlsjsP2pEngine"),this.logger=a,a.info(`channel ${this.channel}`),t||(o.startSN=n.startSN,o.endSN=n.endSN,a.info(`startSN ${n.startSN} endSN ${n.endSN}`)),this.eventListened=!1,this._init(this.channel,this.browserInfo)}async _init(e,t){const{logger:s,config:i}=this;if(!this.p2pEnabled||"undefined"==typeof self)return;this.media=this.hlsjs.media,this.media&&(this.currentSrc=this.media.src);const r=new cs(this,i);this.eventListened||(this.hlsjs.on(this.HLSEvents.FRAG_LOADING,this._onFragLoading.bind(this)),this.hlsjs.on(this.HLSEvents.FRAG_LOADED,this._onFragLoaded.bind(this)),this.hlsjs.on(this.HLSEvents.FRAG_CHANGED,this._onFragChanged.bind(this)),this.hlsjs.on(this.HLSEvents.ERROR,this._onHlsError.bind(this)),this.eventListened=!0);try{await super._init(e,r,t)}catch(e){return void s.error(e)}this.hlsjs.config.fLoader=function(e,t,s,i){return class extends(n()){constructor(r){super(),this.logger=s,this.isHlsV0=i.isHlsV0,this.bufMgr=e.bufMgr,this.streamEnabled=i.httpStreamEnabled&&Qt(),this.httpLoader=this.streamEnabled?new Kt(r):new r.loader(r),this.p2pEnabled=i.p2pEnabled,this.isLive=i.live,this.scheduler=e,this.fetcher=t,this.segmentId=i.segmentId,this.blockTypes=i.p2pBlackList,this.stats=this.httpLoader.stats||Xt(),this.enableWorker=r.enableWorker,this.segmentBypass=I(i.segmentBypass)?i.segmentBypass:()=>!1,this.prefetchOnly=i.prefetchOnly,this.startFromSegmentOffset=i.startFromSegmentOffset,e.engine.segmentLoadCount++,this.segmentLoadCount=e.engine.segmentLoadCount}destroy(){this.httpLoader.destroy()}abort(){this.httpLoader.abort()}async load(e,t,s){const{logger:i,scheduler:r}=this,{url:n,frag:o}=e;this.isHlsV0||(o.stats=this.stats);let a=e.frag.segId;if(!a){let t;e.rangeEnd&&(t="bytes="+e.rangeStart+"-"+(e.rangeEnd-1)),a=e.frag.segId=this.segmentId(String(o.level),o.sn,o.url,t)}const h=()=>(e.frag.loadByHTTP=!0,this.httpLoader.load(e,t,s));if(!o.url||Vt(o.url,this.blockTypes,o.type)||this.segmentBypass(o.url,o.tagList))return i.info(`HTTP load blockType ${o.url}`),h();if(this.fetcher.increMediaRequests(),this.isLive&&r.requestedSet.has(a))return i.warn(`HTTP load duplicated ${o.url}`),h();if(this.segmentLoadCount<this.startFromSegmentOffset)return h();t.maxRetry=2;const l=r.getBufferedDuration(),c=await this.bufMgr.getSegById(a);if(this.p2pEnabled&&c){i.info(`bufMgr found seg sn ${o.sn} segId ${a} level ${o.level}`);let t=S(c.data).buffer,r={url:e.url,data:t};return Yt(this.stats,c.size),o.loaded=c.size,o.loadByP2P=!0,e.frag.fromPeerId=c.fromPeerId,void j()((()=>{!this.isHlsV0&&s.onProgress&&s.onProgress(this.stats,e,r.data),s.onSuccess(r,this.stats,e)}))}if(!this.prefetchOnly&&this.p2pEnabled&&r.hasAndSetTargetPeer(o.sn,o.level,o.segId,l))return void this.loadFragByP2p(e,t,s,a);if(!this.prefetchOnly&&r.waitForPeer&&(i.warn("waitPeerNotifier start"),r.waitingSeg={sn:o.sn,level:o.level},await r.waitPeerNotifier(),i.warn("waitPeerNotifier end"),r.waitingSeg={},this.p2pEnabled&&r.hasAndSetTargetPeer(o.sn,o.level,o.segId,l)))return void this.loadFragByP2p(e,t,s,a);i.info(`fragLoader load ${a} at ${o.sn} level ${o.level} buffered ${1e3*l}`);const d=r.requestingMap.get(ve(o.sn,o.level));!this.prefetchOnly&&r.httpRangeSupported&&d&&d.segId===o.segId&&d.hasPartialBuffer?(i.warn(`syn has partial buffer for ${o.segId}`),d.setExtra({url:n}),d.terminate()):this.loadFragByHttp(e,t,s,a)}loadFragByHttp(e,t,s,i){const{logger:r,scheduler:n}=this,{segmentBuilderMap:o}=n;n.isReceiver=!1;const a=e.frag,{sn:h,level:l}=a,c=ve(h,l);if(this.streamEnabled){let e;s.onUpdate=(t,s,n)=>{if(n)return r.warn(`loadFragByHttp ${i} aborted`),void o.delete(c);e&&e.receiveBytes(t,s)},s.onBodyStart=t=>{!e&&t>0&&(e=new ns(h,l,i,t),o.has(c)||o.set(c,e),n.isMobileNet||n.notifyAllPeers(h,l,i,Mt.PARTIAL_FORWARD))}}const d=s.onSuccess;s.onSuccess=async(e,t,s)=>{const{data:a}=e;let u=t.tload-t.trequest;if(r.info(`HTTP loaded ${i} time ${u} speed ${a.byteLength/u}`),!await this.bufMgr.hasSegOfId(i)){const e=S(a).buffer,t=new Q(h,i,e,this.fetcher.peerId,l);await this.bufMgr.putSeg(t)}o.delete(c),this.fetcher.reportFlow(t.total),n.notifyAllPeers(h,l,i),d(e,t,s)};const u=s.onProgress;s.onProgress=(e,t,s)=>{a.loaded=e.total,u(e,t,s&&this.enableWorker?S(s).buffer:s)},e.frag.loadByHTTP=!0,this.httpLoader.load(e,t,s)}loadFragByP2p(e,t,s,i){const{logger:r}=this,n=e.frag;this.scheduler.load(e,t,s);const o=s.onSuccess,a=s.onTimeout;s.onTimeout=(e,h)=>{r.warn(`P2P timeout switched to HTTP load ${n.relurl} at ${n.sn}`),s.onSuccess=o,this.loadFragByHttp(h,t,s,i),s.onTimeout=a},s.onSuccess=async(e,t,a)=>{if(!await this.bufMgr.hasSegOfId(i)){const t=S(e.data).buffer,s=new Q(n.sn,i,t,n.fromPeerId||this.fetcher.peerId,n.level);await this.bufMgr.putSeg(s)}n.loadByP2P||this.fetcher.reportFlow(t.total),n.loaded=t.loaded,r.info(`${n.loadByP2P?"P2P":"HTTP"} loaded segment id ${i}`),!this.isHlsV0&&s.onProgress&&s.onProgress(t,a,e.data),o(e,t,a)}}}}(r,this.fetcher,s,i),i.sharePlaylist&&(this.hlsjs.config.pLoader=function(e,t,s){return class extends(n()){constructor(i){super(),this.logger=t,this.xhrLoader=new i.loader(i),this.p2pEnabled=s.p2pEnabled,this.scheduler=e,this.stats=this.xhrLoader.stats||Xt()}destroy(){this.xhrLoader.destroy()}abort(){this.xhrLoader.abort()}load(e,t,s){const{logger:i}=this,{url:r}=e,n=w(r),o=s.onSuccess;if(s.onSuccess=(e,t,s)=>{this.scheduler&&!s.loadedByPeer&&this.scheduler.broadcastPlaylist(n,e.data),o(e,t,s)},this.scheduler&&this.scheduler.playlistInfo.has(n)){const t=this.scheduler.getPlaylistFromPeer(n);if(t&&t.data){const{data:n,seq:o}=t;i.info(`got playlist from peer seq ${o}`),Yt(this.stats,n.length);let a={url:r,data:n};return e.loadedByPeer=!0,void j()((()=>{s.onSuccess(a,this.stats,e)}))}}this.xhrLoader.load(e,t,s)}}}(r,s,i)),this.trackerTried=!1,this.trackerTried||this.tracker.connected||!i.p2pEnabled||(this.tracker.resumeP2P(),this.trackerTried=!0)}_onFragLoading(e,s){const i=s.frag;let{sn:r,level:n,segId:o}=i;if(!Vt(i.url,this.config.p2pBlackList,i.type)){if(this.logger.debug("loading frag "+r),this.bufMgr&&(this.bufMgr.loadingSN=r),!o){let e;i._byteRange&&(e="bytes="+i._byteRange[0]+"-"+i._byteRange[1]);let t=i.url;o=i.segId=this.config.segmentId(String(n),i.sn,t,e)}this.emit(t.FRAG_LOADING,{sn:r,segId:o,byHttp:i.loadByHTTP,level:n})}}_onFragLoaded(e,s){if(!this.p2pEnabled)return;const{frag:i}=s,{sn:r,segId:n,loaded:o,duration:a,level:h,fromPeerId:l,loadByP2P:c,url:d}=i,{config:u,logger:g}=this;this.tracker&&this.tracker.scheduler&&(P(this.tracker.scheduler.requestedSet,50),this.tracker.scheduler.requestedSet.add(n)),Vt(i.url,u.p2pBlackList,i.type)||(this.bufMgr&&this.bufMgr.loadingSN>=0&&this.emit(t.FRAG_LOADED,{url:d,sn:r,level:h,segId:n,loaded:o,duration:a,byP2p:!!c,fromPeerId:l}),!this.rangeTested&&u.useHttpRange&&(m(i.url,void 0,u.xhrSetup).then((()=>{u.httpRangeSupported=!0})).catch((e=>{u.httpRangeSupported=!1,g.warn(e)})).finally((()=>{g.info(`http range is${u.httpRangeSupported?"":" not"} supported`)})),this.rangeTested=!0,g.info(JSON.stringify({engine:this.engineName,hlsjs:this.hlsjsVersion,...this.browserInfo}))))}_onFragChanged(e,s){const{frag:i}=s;if(!Vt(i.url,this.config.p2pBlackList,i.type)){this.logger.debug("frag changed: "+i.sn);const{sn:e,duration:s}=i;this.emit(t.FRAG_CHANGED,{sn:e,duration:s})}}get currentLevel(){const{currentLevel:e}=this.hlsjs;return e>=0?e:0}disableP2P(){this.logger&&this.logger.warn("disable P2P"),this.p2pEnabled&&(this.p2pEnabled=!1,this.config.p2pEnabled=this.p2pEnabled,this.tracker&&(this.tracker.stopP2P(),this.tracker={},this.fetcher=null,this.bufMgr.destroy(),this.bufMgr=null,this.hlsjs.config.fLoader=this.hlsjs.config.pLoader=this.hlsjs.constructor.DefaultConfig.loader))}}const us=ds;class gs{static get Events(){return t}static get TrackerZone(){return ge.TrackerZone}static isSupported(){return ge.isSupported()&&(fe()||ls.isServiceWorkerSupported())}static isServiceWorkerSupported(){return ls.isServiceWorkerSupported()}static isMSESupported(){return fe()}static getBrowser(){return Z().getBrowser()}static get ServiceWorkerEngine(){return ls}static get HlsjsEngine(){return us}static async tryRegisterServiceWorker({swFile:e="./sw.js",swScope:t="./"}={}){return gs.registerServiceWorker({swFile:e,swScope:t})}static async registerServiceWorker({swFile:e="./sw.js",swScope:t="./",hlsjsInstance:s}={}){const{serviceWorker:i}=navigator;return!i||s?Promise.resolve():i.getRegistration().then((s=>{return s||Promise.race([i.register(e,{scope:t}).then((e=>function(e){return new Promise(((t,s)=>{const i=e.installing||e.waiting||e.active,r=()=>"activated"===i.state&&(i.removeEventListener("statechange",r),t(e),!0);r()||i.addEventListener("statechange",r)}))}(e))),(r=300,new Promise((e=>setTimeout(e,r))))]);var r})).catch((()=>{Promise.resolve()}))}constructor(e={}){const{hlsjsInstance:t}=e;delete e.hlsjsInstance;const s=()=>{this._realEngine=new us(t,e)},i=()=>{this._realEngine=new ls(e,t)};"1"!==u("_ios")?e.proxyFirst&&t?ls.isServiceWorkerSupported()?i():s():!e.proxyOnly&&fe()&&t?s():i():i()}get realEngine(){return this._realEngine}get engineName(){return this._realEngine.constructor.name}once(e,t){return this._realEngine.once(e,t)}on(e,t){return this._realEngine.on(e,t)}off(e,t){return this._realEngine.off(e,t)}removeListener(e,t){return this._realEngine.removeListener(e,t)}removeAllListeners(e){return this._realEngine.removeAllListeners(e)}set p2pEnabled(e){this._realEngine.p2pEnabled=e}get p2pEnabled(){return this._realEngine.p2pEnabled}enableP2P(){this._realEngine.enableP2P()}disableP2P(){this._realEngine.disableP2P()}destroy(){this._realEngine.destroy()}async registerServiceWorker(){return I(this._realEngine.registerServiceWorker)?this._realEngine.registerServiceWorker():Promise.reject("Not supported by this engine")}async unregisterServiceWorker(){return I(this._realEngine.unregisterServiceWorker)?this._realEngine.unregisterServiceWorker():Promise.reject("Not supported by this engine")}get version(){return ge.version}}gs.version=ge.version,gs.protocolVersion=te.VERSION,"undefined"!=typeof self&&(self.P2PEngineHls=gs);const fs=gs})(),i=i.default})()));