'use strict';

function getDefaultExportFromCjs (x) {
	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
}

var mqtt_browser = {exports: {}};

/*! For license information please see mqtt.browser.js.LICENSE.txt */

var hasRequiredMqtt_browser;

function requireMqtt_browser () {
	if (hasRequiredMqtt_browser) return mqtt_browser.exports;
	hasRequiredMqtt_browser = 1;
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maxAge(){return this[u]}set lengthCalculator(e){"function"!=typeof e&&(e=d),e!==this[s]&&(this[s]=e,this[o]=0,this[h].forEach((e=>{e.length=this[s](e.value,e.key),this[o]+=e.length;}))),b(this);}get lengthCalculator(){return this[s]}get length(){return this[o]}get itemCount(){return this[h].length}rforEach(e,t){t=t||this;for(let r=this[h].tail;null!==r;){const n=r.prev;w(this,e,r,t),r=n;}}forEach(e,t){t=t||this;for(let r=this[h].head;null!==r;){const n=r.next;w(this,e,r,t),r=n;}}keys(){return this[h].toArray().map((e=>e.key))}values(){return this[h].toArray().map((e=>e.value))}reset(){this[l]&&this[h]&&this[h].length&&this[h].forEach((e=>this[l](e.key,e.value))),this[f]=new Map,this[h]=new n,this[o]=0;}dump(){return this[h].map((e=>!g(this,e)&&{k:e.key,v:e.value,e:e.now+(e.maxAge||0)})).toArray().filter((e=>e))}dumpLru(){return this[h]}set(e,t,r){if((r=r||this[u])&&"number"!=typeof r)throw new TypeError("maxAge must be a number");const n=r?Date.now():0,a=this[s](t,e);if(this[f].has(e)){if(a>this[i])return m(this,this[f].get(e)),false;const s=this[f].get(e).value;return this[l]&&(this[c]||this[l](e,s.value)),s.now=n,s.maxAge=r,s.value=t,this[o]+=a-s.length,s.length=a,this.get(e),b(this),true}const p=new v(e,t,a,n,r);return p.length>this[i]?(this[l]&&this[l](e,t),false):(this[o]+=p.length,this[h].unshift(p),this[f].set(e,this[h].head),b(this),true)}has(e){if(!this[f].has(e))return  false;const t=this[f].get(e).value;return !g(this,t)}get(e){return y(this,e,true)}peek(e){return y(this,e,false)}pop(){const e=this[h].tail;return e?(m(this,e),e.value):null}del(e){m(this,this[f].get(e));}load(e){this.reset();const t=Date.now();for(let r=e.length-1;r>=0;r--){const n=e[r],i=n.e||0;if(0===i)this.set(n.k,n.v);else {const e=i-t;e>0&&this.set(n.k,n.v,e);}}}prune(){this[f].forEach(((e,t)=>y(this,t,false)));}};},9990:function(e,t,r){var n=r(8764).Buffer;const i=e.exports;i.types={0:"reserved",1:"connect",2:"connack",3:"publish",4:"puback",5:"pubrec",6:"pubrel",7:"pubcomp",8:"subscribe",9:"suback",10:"unsubscribe",11:"unsuback",12:"pingreq",13:"pingresp",14:"disconnect",15:"auth"},i.codes={};for(const e in i.types){const t=i.types[e];i.codes[t]=e;}i.CMD_SHIFT=4,i.CMD_MASK=240,i.DUP_MASK=8,i.QOS_MASK=3,i.QOS_SHIFT=1,i.RETAIN_MASK=1,i.VARBYTEINT_MASK=127,i.VARBYTEINT_FIN_MASK=128,i.VARBYTEINT_MAX=268435455,i.SESSIONPRESENT_MASK=1,i.SESSIONPRESENT_HEADER=n.from([i.SESSIONPRESENT_MASK]),i.CONNACK_HEADER=n.from([i.codes.connack<<i.CMD_SHIFT]),i.USERNAME_MASK=128,i.PASSWORD_MASK=64,i.WILL_RETAIN_MASK=32,i.WILL_QOS_MASK=24,i.WILL_QOS_SHIFT=3,i.WILL_FLAG_MASK=4,i.CLEAN_SESSION_MASK=2,i.CONNECT_HEADER=n.from([i.codes.connect<<i.CMD_SHIFT]),i.properties={sessionExpiryInterval:17,willDelayInterval:24,receiveMaximum:33,maximumPacketSize:39,topicAliasMaximum:34,requestResponseInformation:25,requestProblemInformation:23,userProperties:38,authenticationMethod:21,authenticationData:22,payloadFormatIndicator:1,messageExpiryInterval:2,contentType:3,responseTopic:8,correlationData:9,maximumQoS:36,retainAvailable:37,assignedClientIdentifier:18,reasonString:31,wildcardSubscriptionAvailable:40,subscriptionIdentifiersAvailable:41,sharedSubscriptionAvailable:42,serverKeepAlive:19,responseInformation:26,serverReference:28,topicAlias:35,subscriptionIdentifier:11},i.propertiesCodes={};for(const e in i.properties){const t=i.properties[e];i.propertiesCodes[t]=e;}function o(e){return [0,1,2].map((t=>[0,1].map((r=>[0,1].map((o=>{const s=n.alloc(1);return s.writeUInt8(i.codes[e]<<i.CMD_SHIFT|(r?i.DUP_MASK:0)|t<<i.QOS_SHIFT|o,0,true),s}))))))}i.propertiesTypes={sessionExpiryInterval:"int32",willDelayInterval:"int32",receiveMaximum:"int16",maximumPacketSize:"int32",topicAliasMaximum:"int16",requestResponseInformation:"byte",requestProblemInformation:"byte",userProperties:"pair",authenticationMethod:"string",authenticationData:"binary",payloadFormatIndicator:"byte",messageExpiryInterval:"int32",contentType:"string",responseTopic:"string",correlationData:"binary",maximumQoS:"int8",retainAvailable:"byte",assignedClientIdentifier:"string",reasonString:"string",wildcardSubscriptionAvailable:"byte",subscriptionIdentifiersAvailable:"byte",sharedSubscriptionAvailable:"byte",serverKeepAlive:"int16",responseInformation:"string",serverReference:"string",topicAlias:"int16",subscriptionIdentifier:"var"},i.PUBLISH_HEADER=o("publish"),i.SUBSCRIBE_HEADER=o("subscribe"),i.SUBSCRIBE_OPTIONS_QOS_MASK=3,i.SUBSCRIBE_OPTIONS_NL_MASK=1,i.SUBSCRIBE_OPTIONS_NL_SHIFT=2,i.SUBSCRIBE_OPTIONS_RAP_MASK=1,i.SUBSCRIBE_OPTIONS_RAP_SHIFT=3,i.SUBSCRIBE_OPTIONS_RH_MASK=3,i.SUBSCRIBE_OPTIONS_RH_SHIFT=4,i.SUBSCRIBE_OPTIONS_RH=[0,16,32],i.SUBSCRIBE_OPTIONS_NL=4,i.SUBSCRIBE_OPTIONS_RAP=8,i.SUBSCRIBE_OPTIONS_QOS=[0,1,2],i.UNSUBSCRIBE_HEADER=o("unsubscribe"),i.ACKS={unsuback:o("unsuback"),puback:o("puback"),pubcomp:o("pubcomp"),pubrel:o("pubrel"),pubrec:o("pubrec")},i.SUBACK_HEADER=n.from([i.codes.suback<<i.CMD_SHIFT]),i.VERSION3=n.from([3]),i.VERSION4=n.from([4]),i.VERSION5=n.from([5]),i.VERSION131=n.from([131]),i.VERSION132=n.from([132]),i.QOS=[0,1,2].map((e=>n.from([e]))),i.EMPTY={pingreq:n.from([i.codes.pingreq<<4,0]),pingresp:n.from([i.codes.pingresp<<4,0]),disconnect:n.from([i.codes.disconnect<<4,0])};},7721:function(e,t,r){var n=r(8764).Buffer;const i=r(9371),o=r(7187);class s extends o{constructor(){super(),this._array=new Array(20),this._i=0;}write(e){return this._array[this._i++]=e,true}concat(){let e=0;const t=new Array(this._array.length),r=this._array;let i,o=0;for(i=0;i<r.length&&void 0!==r[i];i++)"string"!=typeof r[i]?t[i]=r[i].length:t[i]=n.byteLength(r[i]),e+=t[i];const s=n.allocUnsafe(e);for(i=0;i<r.length&&void 0!==r[i];i++)"string"!=typeof r[i]?(r[i].copy(s,o),o+=t[i]):(s.write(r[i],o),o+=t[i]);return s}}e.exports=function(e,t){const r=new s;return i(e,r,t),r.concat()};},1772:function(e,t,r){t.parser=r(5322).parser,t.generate=r(7721),t.writeToStream=r(9371);},3903:function(e,t,r){var n=r(8764).Buffer;const i={},o=n.isBuffer(n.from([1,2]).subarray(0,1));function s(e){const t=n.allocUnsafe(2);return t.writeUInt8(e>>8,0),t.writeUInt8(255&e,1),t}e.exports={cache:i,generateCache:function(){for(let e=0;e<65536;e++)i[e]=s(e);},generateNumber:s,genBufVariableByteInt:function(e){let t=0,r=0;const i=n.allocUnsafe(4);do{t=e%128|0,(e=e/128|0)>0&&(t|=128),i.writeUInt8(t,r++);}while(e>0&&r<4);return e>0&&(r=0),o?i.subarray(0,r):i.slice(0,r)},generate4ByteBuffer:function(e){const t=n.allocUnsafe(4);return t.writeUInt32BE(e,0),t}};},9695:function(e){e.exports=class{constructor(){this.cmd=null,this.retain=false,this.qos=0,this.dup=false,this.length=-1,this.topic=null,this.payload=null;}};},5322:function(e,t,r){const n=r(22),i=r(7187),o=r(9695),s=r(9990),a=r(1227)("mqtt-packet:parser");class u extends i{constructor(){super(),this.parser=this.constructor.parser;}static parser(e){return this instanceof u?(this.settings=e||{},this._states=["_parseHeader","_parseLength","_parsePayload","_newPacket"],this._resetState(),this):(new u).parser(e)}_resetState(){a("_resetState: resetting packet, error, _list, and _stateCounter"),this.packet=new o,this.error=null,this._list=n(),this._stateCounter=0;}parse(e){for(this.error&&this._resetState(),this._list.append(e),a("parse: current state: %s",this._states[this._stateCounter]);(-1!==this.packet.length||this._list.length>0)&&this[this._states[this._stateCounter]]()&&!this.error;)this._stateCounter++,a("parse: state complete. _stateCounter is now: %d",this._stateCounter),a("parse: packet.length: %d, buffer list length: %d",this.packet.length,this._list.length),this._stateCounter>=this._states.length&&(this._stateCounter=0);return a("parse: exited while loop. packet: %d, buffer list length: %d",this.packet.length,this._list.length),this._list.length}_parseHeader(){const e=this._list.readUInt8(0);return this.packet.cmd=s.types[e>>s.CMD_SHIFT],this.packet.retain=0!=(e&s.RETAIN_MASK),this.packet.qos=e>>s.QOS_SHIFT&s.QOS_MASK,this.packet.dup=0!=(e&s.DUP_MASK),a("_parseHeader: packet: %o",this.packet),this._list.consume(1),true}_parseLength(){const e=this._parseVarByteNum(true);return e&&(this.packet.length=e.value,this._list.consume(e.bytes)),a("_parseLength %d",e.value),!!e}_parsePayload(){a("_parsePayload: payload %O",this._list);let e=false;if(0===this.packet.length||this._list.length>=this.packet.length){switch(this._pos=0,this.packet.cmd){case "connect":this._parseConnect();break;case "connack":this._parseConnack();break;case "publish":this._parsePublish();break;case "puback":case "pubrec":case "pubrel":case "pubcomp":this._parseConfirmation();break;case "subscribe":this._parseSubscribe();break;case "suback":this._parseSuback();break;case "unsubscribe":this._parseUnsubscribe();break;case "unsuback":this._parseUnsuback();break;case "pingreq":case "pingresp":break;case "disconnect":this._parseDisconnect();break;case "auth":this._parseAuth();break;default:this._emitError(new Error("Not supported"));}e=true;}return a("_parsePayload complete result: %s",e),e}_parseConnect(){let e,t,r,n;a("_parseConnect");const i={},o=this.packet,u=this._parseString();if(null===u)return this._emitError(new Error("Cannot parse protocolId"));if("MQTT"!==u&&"MQIsdp"!==u)return this._emitError(new Error("Invalid protocolId"));if(o.protocolId=u,this._pos>=this._list.length)return this._emitError(new Error("Packet too short"));if(o.protocolVersion=this._list.readUInt8(this._pos),o.protocolVersion>=128&&(o.bridgeMode=true,o.protocolVersion=o.protocolVersion-128),3!==o.protocolVersion&&4!==o.protocolVersion&&5!==o.protocolVersion)return this._emitError(new Error("Invalid protocol version"));if(this._pos++,this._pos>=this._list.length)return this._emitError(new Error("Packet too short"));if(i.username=this._list.readUInt8(this._pos)&s.USERNAME_MASK,i.password=this._list.readUInt8(this._pos)&s.PASSWORD_MASK,i.will=this._list.readUInt8(this._pos)&s.WILL_FLAG_MASK,i.will&&(o.will={},o.will.retain=0!=(this._list.readUInt8(this._pos)&s.WILL_RETAIN_MASK),o.will.qos=(this._list.readUInt8(this._pos)&s.WILL_QOS_MASK)>>s.WILL_QOS_SHIFT),o.clean=0!=(this._list.readUInt8(this._pos)&s.CLEAN_SESSION_MASK),this._pos++,o.keepalive=this._parseNum(),-1===o.keepalive)return this._emitError(new Error("Packet too short"));if(5===o.protocolVersion){const e=this._parseProperties();Object.getOwnPropertyNames(e).length&&(o.properties=e);}const l=this._parseString();if(null===l)return this._emitError(new Error("Packet too short"));if(o.clientId=l,a("_parseConnect: packet.clientId: %s",o.clientId),i.will){if(5===o.protocolVersion){const e=this._parseProperties();Object.getOwnPropertyNames(e).length&&(o.will.properties=e);}if(e=this._parseString(),null===e)return this._emitError(new Error("Cannot parse will topic"));if(o.will.topic=e,a("_parseConnect: packet.will.topic: %s",o.will.topic),t=this._parseBuffer(),null===t)return this._emitError(new Error("Cannot parse will payload"));o.will.payload=t,a("_parseConnect: packet.will.paylaod: %s",o.will.payload);}if(i.username){if(n=this._parseString(),null===n)return this._emitError(new Error("Cannot parse username"));o.username=n,a("_parseConnect: packet.username: %s",o.username);}if(i.password){if(r=this._parseBuffer(),null===r)return this._emitError(new Error("Cannot parse password"));o.password=r;}return this.settings=o,a("_parseConnect: complete"),o}_parseConnack(){a("_parseConnack");const e=this.packet;if(this._list.length<1)return null;if(e.sessionPresent=!!(this._list.readUInt8(this._pos++)&s.SESSIONPRESENT_MASK),5===this.settings.protocolVersion)this._list.length>=2?e.reasonCode=this._list.readUInt8(this._pos++):e.reasonCode=0;else {if(this._list.length<2)return null;e.returnCode=this._list.readUInt8(this._pos++);}if(-1===e.returnCode||-1===e.reasonCode)return this._emitError(new Error("Cannot parse return code"));if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t);}a("_parseConnack: complete");}_parsePublish(){a("_parsePublish");const e=this.packet;if(e.topic=this._parseString(),null===e.topic)return this._emitError(new Error("Cannot parse topic"));if(!(e.qos>0)||this._parseMessageId()){if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t);}e.payload=this._list.slice(this._pos,e.length),a("_parsePublish: payload from buffer list: %o",e.payload);}}_parseSubscribe(){a("_parseSubscribe");const e=this.packet;let t,r,n,i,o,u,l;if(1!==e.qos)return this._emitError(new Error("Wrong subscribe header"));if(e.subscriptions=[],this._parseMessageId()){if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t);}for(;this._pos<e.length;){if(t=this._parseString(),null===t)return this._emitError(new Error("Cannot parse topic"));if(this._pos>=e.length)return this._emitError(new Error("Malformed Subscribe Payload"));r=this._parseByte(),n=r&s.SUBSCRIBE_OPTIONS_QOS_MASK,u=0!=(r>>s.SUBSCRIBE_OPTIONS_NL_SHIFT&s.SUBSCRIBE_OPTIONS_NL_MASK),o=0!=(r>>s.SUBSCRIBE_OPTIONS_RAP_SHIFT&s.SUBSCRIBE_OPTIONS_RAP_MASK),i=r>>s.SUBSCRIBE_OPTIONS_RH_SHIFT&s.SUBSCRIBE_OPTIONS_RH_MASK,l={topic:t,qos:n},5===this.settings.protocolVersion?(l.nl=u,l.rap=o,l.rh=i):this.settings.bridgeMode&&(l.rh=0,l.rap=true,l.nl=true),a("_parseSubscribe: push subscription `%s` to subscription",l),e.subscriptions.push(l);}}}_parseSuback(){a("_parseSuback");const e=this.packet;if(this.packet.granted=[],this._parseMessageId()){if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t);}for(;this._pos<this.packet.length;)this.packet.granted.push(this._list.readUInt8(this._pos++));}}_parseUnsubscribe(){a("_parseUnsubscribe");const e=this.packet;if(e.unsubscriptions=[],this._parseMessageId()){if(5===this.settings.protocolVersion){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t);}for(;this._pos<e.length;){const t=this._parseString();if(null===t)return this._emitError(new Error("Cannot parse topic"));a("_parseUnsubscribe: push topic `%s` to unsubscriptions",t),e.unsubscriptions.push(t);}}}_parseUnsuback(){a("_parseUnsuback");const e=this.packet;if(!this._parseMessageId())return this._emitError(new Error("Cannot parse messageId"));if(5===this.settings.protocolVersion){const t=this._parseProperties();for(Object.getOwnPropertyNames(t).length&&(e.properties=t),e.granted=[];this._pos<this.packet.length;)this.packet.granted.push(this._list.readUInt8(this._pos++));}}_parseConfirmation(){a("_parseConfirmation: packet.cmd: `%s`",this.packet.cmd);const e=this.packet;if(this._parseMessageId(),5===this.settings.protocolVersion&&(e.length>2?(e.reasonCode=this._parseByte(),a("_parseConfirmation: packet.reasonCode `%d`",e.reasonCode)):e.reasonCode=0,e.length>3)){const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t);}return  true}_parseDisconnect(){const e=this.packet;if(a("_parseDisconnect"),5===this.settings.protocolVersion){this._list.length>0?e.reasonCode=this._parseByte():e.reasonCode=0;const t=this._parseProperties();Object.getOwnPropertyNames(t).length&&(e.properties=t);}return a("_parseDisconnect result: true"),true}_parseAuth(){a("_parseAuth");const e=this.packet;if(5!==this.settings.protocolVersion)return this._emitError(new Error("Not supported auth packet for this version MQTT"));e.reasonCode=this._parseByte();const t=this._parseProperties();return Object.getOwnPropertyNames(t).length&&(e.properties=t),a("_parseAuth: result: true"),true}_parseMessageId(){const e=this.packet;return e.messageId=this._parseNum(),null===e.messageId?(this._emitError(new Error("Cannot parse messageId")),false):(a("_parseMessageId: packet.messageId %d",e.messageId),true)}_parseString(e){const t=this._parseNum(),r=t+this._pos;if(-1===t||r>this._list.length||r>this.packet.length)return null;const n=this._list.toString("utf8",this._pos,r);return this._pos+=t,a("_parseString: result: %s",n),n}_parseStringPair(){return a("_parseStringPair"),{name:this._parseString(),value:this._parseString()}}_parseBuffer(){const e=this._parseNum(),t=e+this._pos;if(-1===e||t>this._list.length||t>this.packet.length)return null;const r=this._list.slice(this._pos,t);return this._pos+=e,a("_parseBuffer: result: %o",r),r}_parseNum(){if(this._list.length-this._pos<2)return  -1;const e=this._list.readUInt16BE(this._pos);return this._pos+=2,a("_parseNum: result: %s",e),e}_parse4ByteNum(){if(this._list.length-this._pos<4)return  -1;const e=this._list.readUInt32BE(this._pos);return this._pos+=4,a("_parse4ByteNum: result: %s",e),e}_parseVarByteNum(e){a("_parseVarByteNum");let t,r=0,n=1,i=0,o=false;const u=this._pos?this._pos:0;for(;r<4&&u+r<this._list.length;){if(t=this._list.readUInt8(u+r++),i+=n*(t&s.VARBYTEINT_MASK),n*=128,0==(t&s.VARBYTEINT_FIN_MASK)){o=true;break}if(this._list.length<=r)break}return !o&&4===r&&this._list.length>=r&&this._emitError(new Error("Invalid variable byte integer")),u&&(this._pos+=r),o=!!o&&(e?{bytes:r,value:i}:i),a("_parseVarByteNum: result: %o",o),o}_parseByte(){let e;return this._pos<this._list.length&&(e=this._list.readUInt8(this._pos),this._pos++),a("_parseByte: result: %o",e),e}_parseByType(e){switch(a("_parseByType: type: %s",e),e){case "byte":return 0!==this._parseByte();case "int8":return this._parseByte();case "int16":return this._parseNum();case "int32":return this._parse4ByteNum();case "var":return this._parseVarByteNum();case "string":return this._parseString();case "pair":return this._parseStringPair();case "binary":return this._parseBuffer()}}_parseProperties(){a("_parseProperties");const e=this._parseVarByteNum(),t=this._pos+e,r={};for(;this._pos<t;){const e=this._parseByte();if(!e)return this._emitError(new Error("Cannot parse property code type")),false;const t=s.propertiesCodes[e];if(!t)return this._emitError(new Error("Unknown property")),false;if("userProperties"!==t)r[t]?(Array.isArray(r[t])||(r[t]=[r[t]]),r[t].push(this._parseByType(s.propertiesTypes[t]))):r[t]=this._parseByType(s.propertiesTypes[t]);else {r[t]||(r[t]=Object.create(null));const e=this._parseByType(s.propertiesTypes[t]);if(r[t][e.name])if(Array.isArray(r[t][e.name]))r[t][e.name].push(e.value);else {const n=r[t][e.name];r[t][e.name]=[n],r[t][e.name].push(e.value);}else r[t][e.name]=e.value;}}return r}_newPacket(){return a("_newPacket"),this.packet&&(this._list.consume(this.packet.length),a("_newPacket: parser emit packet: packet.cmd: %s, packet.payload: %s, packet.length: %d",this.packet.cmd,this.packet.payload,this.packet.length),this.emit("packet",this.packet)),a("_newPacket: new packet"),this.packet=new o,this._pos=0,true}_emitError(e){a("_emitError"),this.error=e,this.emit("error",e);}}e.exports=u;},9371:function(e,t,r){var n=r(8764).Buffer;const i=r(9990),o=n.allocUnsafe(0),s=n.from([0]),a=r(3903),u=r(8212).nextTick,l=r(1227)("mqtt-packet:writeToStream"),c=a.cache,h=a.generateNumber,f=a.generateCache,p=a.genBufVariableByteInt,d=a.generate4ByteBuffer;let y=k,g=true;function b(e,t,r){switch(l("generate called"),t.cork&&(t.cork(),u(m,t)),g&&(g=false,f()),l("generate: packet.cmd: %s",e.cmd),e.cmd){case "connect":return function(e,t,r){const o=e||{},s=o.protocolId||"MQTT";let a=o.protocolVersion||4;const u=o.will;let l=o.clean;const c=o.keepalive||0,h=o.clientId||"",f=o.username,p=o.password,d=o.properties;void 0===l&&(l=true);let g=0;if("string"!=typeof s&&!n.isBuffer(s))return t.emit("error",new Error("Invalid protocolId")),false;if(g+=s.length+2,3!==a&&4!==a&&5!==a)return t.emit("error",new Error("Invalid protocol version")),false;if(g+=1,("string"==typeof h||n.isBuffer(h))&&(h||a>=4)&&(h||l))g+=n.byteLength(h)+2;else {if(a<4)return t.emit("error",new Error("clientId must be supplied before 3.1.1")),false;if(1*l==0)return t.emit("error",new Error("clientId must be given if cleanSession set to 0")),false}if("number"!=typeof c||c<0||c>65535||c%1!=0)return t.emit("error",new Error("Invalid keepalive")),false;if(g+=2,g+=1,5===a){var b=T(t,d);if(!b)return  false;g+=b.length;}if(u){if("object"!=typeof u)return t.emit("error",new Error("Invalid will")),false;if(!u.topic||"string"!=typeof u.topic)return t.emit("error",new Error("Invalid will topic")),false;if(g+=n.byteLength(u.topic)+2,g+=2,u.payload){if(!(u.payload.length>=0))return t.emit("error",new Error("Invalid will payload")),false;"string"==typeof u.payload?g+=n.byteLength(u.payload):g+=u.payload.length;}var m={};if(5===a){if(!(m=T(t,u.properties)))return  false;g+=m.length;}}let v=false;if(null!=f){if(!R(f))return t.emit("error",new Error("Invalid username")),false;v=true,g+=n.byteLength(f)+2;}if(null!=p){if(!v)return t.emit("error",new Error("Username is required to use password")),false;if(!R(p))return t.emit("error",new Error("Invalid password")),false;g+=B(p)+2;}t.write(i.CONNECT_HEADER),w(t,g),C(t,s),o.bridgeMode&&(a+=128),t.write(131===a?i.VERSION131:132===a?i.VERSION132:4===a?i.VERSION4:5===a?i.VERSION5:i.VERSION3);let E=0;return E|=null!=f?i.USERNAME_MASK:0,E|=null!=p?i.PASSWORD_MASK:0,E|=u&&u.retain?i.WILL_RETAIN_MASK:0,E|=u&&u.qos?u.qos<<i.WILL_QOS_SHIFT:0,E|=u?i.WILL_FLAG_MASK:0,E|=l?i.CLEAN_SESSION_MASK:0,t.write(n.from([E])),y(t,c),5===a&&b.write(),C(t,h),u&&(5===a&&m.write(),_(t,u.topic),C(t,u.payload)),null!=f&&C(t,f),null!=p&&C(t,p),true}(e,t);case "connack":return function(e,t,r){const o=r?r.protocolVersion:4,a=e||{},u=5===o?a.reasonCode:a.returnCode,l=a.properties;let c=2;if("number"!=typeof u)return t.emit("error",new Error("Invalid return code")),false;let h=null;if(5===o){if(h=T(t,l),!h)return  false;c+=h.length;}return t.write(i.CONNACK_HEADER),w(t,c),t.write(a.sessionPresent?i.SESSIONPRESENT_HEADER:s),t.write(n.from([u])),null!=h&&h.write(),true}(e,t,r);case "publish":return function(e,t,r){l("publish: packet: %o",e);const s=r?r.protocolVersion:4,a=e||{},u=a.qos||0,c=a.retain?i.RETAIN_MASK:0,h=a.topic,f=a.payload||o,p=a.messageId,d=a.properties;let g=0;if("string"==typeof h)g+=n.byteLength(h)+2;else {if(!n.isBuffer(h))return t.emit("error",new Error("Invalid topic")),false;g+=h.length+2;}if(n.isBuffer(f)?g+=f.length:g+=n.byteLength(f),u&&"number"!=typeof p)return t.emit("error",new Error("Invalid messageId")),false;u&&(g+=2);let b=null;if(5===s){if(b=T(t,d),!b)return  false;g+=b.length;}return t.write(i.PUBLISH_HEADER[u][a.dup?1:0][c?1:0]),w(t,g),y(t,B(h)),t.write(h),u>0&&y(t,p),null!=b&&b.write(),l("publish: payload: %o",f),t.write(f)}(e,t,r);case "puback":case "pubrec":case "pubrel":case "pubcomp":return function(e,t,r){const o=r?r.protocolVersion:4,s=e||{},a=s.cmd||"puback",u=s.messageId,l=s.dup&&"pubrel"===a?i.DUP_MASK:0;let c=0;const h=s.reasonCode,f=s.properties;let p=5===o?3:2;if("pubrel"===a&&(c=1),"number"!=typeof u)return t.emit("error",new Error("Invalid messageId")),false;let d=null;if(5===o&&"object"==typeof f){if(d=A(t,f,r,p),!d)return  false;p+=d.length;}return t.write(i.ACKS[a][c][l][0]),w(t,p),y(t,u),5===o&&t.write(n.from([h])),null!==d&&d.write(),true}(e,t,r);case "subscribe":return function(e,t,r){l("subscribe: packet: ");const o=r?r.protocolVersion:4,s=e||{},a=s.dup?i.DUP_MASK:0,u=s.messageId,c=s.subscriptions,h=s.properties;let f=0;if("number"!=typeof u)return t.emit("error",new Error("Invalid messageId")),false;f+=2;let p=null;if(5===o){if(p=T(t,h),!p)return  false;f+=p.length;}if("object"!=typeof c||!c.length)return t.emit("error",new Error("Invalid subscriptions")),false;for(let e=0;e<c.length;e+=1){const r=c[e].topic,i=c[e].qos;if("string"!=typeof r)return t.emit("error",new Error("Invalid subscriptions - invalid topic")),false;if("number"!=typeof i)return t.emit("error",new Error("Invalid subscriptions - invalid qos")),false;if(5===o){if("boolean"!=typeof(c[e].nl||false))return t.emit("error",new Error("Invalid subscriptions - invalid No Local")),false;if("boolean"!=typeof(c[e].rap||false))return t.emit("error",new Error("Invalid subscriptions - invalid Retain as Published")),false;const r=c[e].rh||0;if("number"!=typeof r||r>2)return t.emit("error",new Error("Invalid subscriptions - invalid Retain Handling")),false}f+=n.byteLength(r)+2+1;}l("subscribe: writing to stream: %o",i.SUBSCRIBE_HEADER),t.write(i.SUBSCRIBE_HEADER[1][a?1:0][0]),w(t,f),y(t,u),null!==p&&p.write();let d=true;for(const e of c){const r=e.topic,s=e.qos,a=+e.nl,u=+e.rap,l=e.rh;let c;_(t,r),c=i.SUBSCRIBE_OPTIONS_QOS[s],5===o&&(c|=a?i.SUBSCRIBE_OPTIONS_NL:0,c|=u?i.SUBSCRIBE_OPTIONS_RAP:0,c|=l?i.SUBSCRIBE_OPTIONS_RH[l]:0),d=t.write(n.from([c]));}return d}(e,t,r);case "suback":return function(e,t,r){const o=r?r.protocolVersion:4,s=e||{},a=s.messageId,u=s.granted,l=s.properties;let c=0;if("number"!=typeof a)return t.emit("error",new Error("Invalid messageId")),false;if(c+=2,"object"!=typeof u||!u.length)return t.emit("error",new Error("Invalid qos vector")),false;for(let e=0;e<u.length;e+=1){if("number"!=typeof u[e])return t.emit("error",new Error("Invalid qos vector")),false;c+=1;}let h=null;if(5===o){if(h=A(t,l,r,c),!h)return  false;c+=h.length;}return t.write(i.SUBACK_HEADER),w(t,c),y(t,a),null!==h&&h.write(),t.write(n.from(u))}(e,t,r);case "unsubscribe":return function(e,t,r){const o=r?r.protocolVersion:4,s=e||{},a=s.messageId,u=s.dup?i.DUP_MASK:0,l=s.unsubscriptions,c=s.properties;let h=0;if("number"!=typeof a)return t.emit("error",new Error("Invalid messageId")),false;if(h+=2,"object"!=typeof l||!l.length)return t.emit("error",new Error("Invalid unsubscriptions")),false;for(let e=0;e<l.length;e+=1){if("string"!=typeof l[e])return t.emit("error",new Error("Invalid unsubscriptions")),false;h+=n.byteLength(l[e])+2;}let f=null;if(5===o){if(f=T(t,c),!f)return  false;h+=f.length;}t.write(i.UNSUBSCRIBE_HEADER[1][u?1:0][0]),w(t,h),y(t,a),null!==f&&f.write();let p=true;for(let e=0;e<l.length;e++)p=_(t,l[e]);return p}(e,t,r);case "unsuback":return function(e,t,r){const o=r?r.protocolVersion:4,s=e||{},a=s.messageId,u=s.dup?i.DUP_MASK:0,l=s.granted,c=s.properties,h=s.cmd;let f=2;if("number"!=typeof a)return t.emit("error",new Error("Invalid messageId")),false;if(5===o){if("object"!=typeof l||!l.length)return t.emit("error",new Error("Invalid qos vector")),false;for(let e=0;e<l.length;e+=1){if("number"!=typeof l[e])return t.emit("error",new Error("Invalid qos vector")),false;f+=1;}}let p=null;if(5===o){if(p=A(t,c,r,f),!p)return  false;f+=p.length;}return t.write(i.ACKS[h][0][u][0]),w(t,f),y(t,a),null!==p&&p.write(),5===o&&t.write(n.from(l)),true}(e,t,r);case "pingreq":case "pingresp":return function(e,t,r){return t.write(i.EMPTY[e.cmd])}(e,t);case "disconnect":return function(e,t,r){const o=r?r.protocolVersion:4,s=e||{},a=s.reasonCode,u=s.properties;let l=5===o?1:0,c=null;if(5===o){if(c=A(t,u,r,l),!c)return  false;l+=c.length;}return t.write(n.from([i.codes.disconnect<<4])),w(t,l),5===o&&t.write(n.from([a])),null!==c&&c.write(),true}(e,t,r);case "auth":return function(e,t,r){const o=r?r.protocolVersion:4,s=e||{},a=s.reasonCode,u=s.properties;let l=5===o?1:0;5!==o&&t.emit("error",new Error("Invalid mqtt version for auth packet"));const c=A(t,u,r,l);return !!c&&(l+=c.length,t.write(n.from([i.codes.auth<<4])),w(t,l),t.write(n.from([a])),null!==c&&c.write(),true)}(e,t,r);default:return t.emit("error",new Error("Unknown command")),false}}function m(e){e.uncork();}Object.defineProperty(b,"cacheNumbers",{get:()=>y===k,set(e){e?(c&&0!==Object.keys(c).length||(g=true),y=k):(g=false,y=S);}});const v={};function w(e,t){if(t>i.VARBYTEINT_MAX)return e.emit("error",new Error(`Invalid variable byte integer: ${t}`)),false;let r=v[t];return r||(r=p(t),t<16384&&(v[t]=r)),l("writeVarByteInt: writing to stream: %o",r),e.write(r)}function _(e,t){const r=n.byteLength(t);return y(e,r),l("writeString: %s",t),e.write(t,"utf8")}function E(e,t,r){_(e,t),_(e,r);}function k(e,t){return l("writeNumberCached: number: %d",t),l("writeNumberCached: %o",c[t]),e.write(c[t])}function S(e,t){const r=h(t);return l("writeNumberGenerated: %o",r),e.write(r)}function C(e,t){"string"==typeof t?_(e,t):t?(y(e,t.length),e.write(t)):y(e,0);}function T(e,t){if("object"!=typeof t||null!=t.length)return {length:1,write(){x(e,{},0);}};let r=0;function o(t,r){let o=0;switch(i.propertiesTypes[t]){case "byte":if("boolean"!=typeof r)return e.emit("error",new Error(`Invalid ${t}: ${r}`)),false;o+=2;break;case "int8":if("number"!=typeof r||r<0||r>255)return e.emit("error",new Error(`Invalid ${t}: ${r}`)),false;o+=2;break;case "binary":if(r&&null===r)return e.emit("error",new Error(`Invalid ${t}: ${r}`)),false;o+=1+n.byteLength(r)+2;break;case "int16":if("number"!=typeof r||r<0||r>65535)return e.emit("error",new Error(`Invalid ${t}: ${r}`)),false;o+=3;break;case "int32":if("number"!=typeof r||r<0||r>4294967295)return e.emit("error",new Error(`Invalid ${t}: ${r}`)),false;o+=5;break;case "var":if("number"!=typeof r||r<0||r>268435455)return e.emit("error",new Error(`Invalid ${t}: ${r}`)),false;o+=1+n.byteLength(p(r));break;case "string":if("string"!=typeof r)return e.emit("error",new Error(`Invalid ${t}: ${r}`)),false;o+=3+n.byteLength(r.toString());break;case "pair":if("object"!=typeof r)return e.emit("error",new Error(`Invalid ${t}: ${r}`)),false;o+=Object.getOwnPropertyNames(r).reduce(((e,t)=>{const i=r[t];return Array.isArray(i)?e+=i.reduce(((e,r)=>e+(3+n.byteLength(t.toString())+2+n.byteLength(r.toString()))),0):e+=3+n.byteLength(t.toString())+2+n.byteLength(r[t].toString()),e}),0);break;default:return e.emit("error",new Error(`Invalid property ${t}: ${r}`)),false}return o}if(t)for(const e in t){let n=0,i=0;const s=t[e];if(Array.isArray(s))for(let t=0;t<s.length;t++){if(i=o(e,s[t]),!i)return  false;n+=i;}else {if(i=o(e,s),!i)return  false;n=i;}if(!n)return  false;r+=n;}return {length:n.byteLength(p(r))+r,write(){x(e,t,r);}}}function A(e,t,r,n){const i=["reasonString","userProperties"],o=r&&r.properties&&r.properties.maximumPacketSize?r.properties.maximumPacketSize:0;let s=T(e,t);if(o)for(;n+s.length>o;){const r=i.shift();if(!r||!t[r])return  false;delete t[r],s=T(e,t);}return s}function I(e,t,r){switch(i.propertiesTypes[t]){case "byte":e.write(n.from([i.properties[t]])),e.write(n.from([+r]));break;case "int8":e.write(n.from([i.properties[t]])),e.write(n.from([r]));break;case "binary":e.write(n.from([i.properties[t]])),C(e,r);break;case "int16":e.write(n.from([i.properties[t]])),y(e,r);break;case "int32":e.write(n.from([i.properties[t]])),function(e,t){const r=d(t);l("write4ByteNumber: %o",r),e.write(r);}(e,r);break;case "var":e.write(n.from([i.properties[t]])),w(e,r);break;case "string":e.write(n.from([i.properties[t]])),_(e,r);break;case "pair":Object.getOwnPropertyNames(r).forEach((o=>{const s=r[o];Array.isArray(s)?s.forEach((r=>{e.write(n.from([i.properties[t]])),E(e,o.toString(),r.toString());})):(e.write(n.from([i.properties[t]])),E(e,o.toString(),s.toString()));}));break;default:return e.emit("error",new Error(`Invalid property ${t} value: ${r}`)),false}}function x(e,t,r){w(e,r);for(const r in t)if(Object.prototype.hasOwnProperty.call(t,r)&&null!==t[r]){const n=t[r];if(Array.isArray(n))for(let t=0;t<n.length;t++)I(e,r,n[t]);else I(e,r,n);}}function B(e){return e?e instanceof n?e.length:n.byteLength(e):0}function R(e){return "string"==typeof e||e instanceof n}e.exports=b;},7824:function(e){var t=1e3,r=60*t,n=60*r,i=24*n;function o(e,t,r,n){var i=t>=1.5*r;return Math.round(e/r)+" "+n+(i?"s":"")}e.exports=function(e,s){s=s||{};var a,u,l=typeof e;if("string"===l&&e.length>0)return 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Identifiers not supported",162:"Wildcard Subscriptions not supported"};function E(e,t){let r;t.properties&&(r=t.properties.topicAlias);let n=t.topic.toString();if(0===n.length){if(void 0===r)return new Error("Unregistered Topic Alias");if(n=e.topicAliasSend.getTopicByAlias(r),void 0===n)return new Error("Unregistered Topic Alias");t.topic=n;}r&&delete t.properties.topicAlias;}function k(e,t,r){g("sendPacket :: packet: %O",t),g("sendPacket :: emitting `packetsend`"),e.emit("packetsend",t),g("sendPacket :: writing to stream");const n=u.writeToStream(t,e.stream,e.options);g("sendPacket :: writeToStream result %s",n),!n&&r&&r!==T?(g("sendPacket :: handle events on `drain` once through callback."),e.stream.once("drain",r)):r&&(g("sendPacket :: invoking cb"),r());}function S(e){e&&(g("flush: queue exists? %b",!!e),Object.keys(e).forEach((function(t){"function"==typeof e[t].cb&&(e[t].cb(new Error("Connection closed")),delete e[t]);})));}function C(e,t,r,n){g("storeAndSend :: store packet with cmd %s to outgoingStore",t.cmd);let i,o=t;if("publish"===o.cmd&&(o=p(t),i=E(e,o),i))return r&&r(i);e.outgoingStore.put(o,(function(i){if(i)return r&&r(i);n(),k(e,t,r);}));}function T(e){g("nop ::",e);}function A(e,t){let r;const n=this;if(!(this instanceof A))return new A(e,t);for(r in this.options=t||{},v) void 0===this.options[r]?this.options[r]=v[r]:this.options[r]=t[r];g("MqttClient :: options.protocol",t.protocol),g("MqttClient :: options.protocolVersion",t.protocolVersion),g("MqttClient :: options.username",t.username),g("MqttClient :: options.keepalive",t.keepalive),g("MqttClient :: options.reconnectPeriod",t.reconnectPeriod),g("MqttClient :: options.rejectUnauthorized",t.rejectUnauthorized),g("MqttClient :: options.topicAliasMaximum",t.topicAliasMaximum),this.options.clientId="string"==typeof t.clientId?t.clientId:"mqttjs_"+Math.random().toString(16).substr(2,8),g("MqttClient :: clientId",this.options.clientId),this.options.customHandleAcks=5===t.protocolVersion&&t.customHandleAcks?t.customHandleAcks:function(){arguments[3](0);},this.streamBuilder=e,this.messageIdProvider=void 0===this.options.messageIdProvider?new l:this.options.messageIdProvider,this.outgoingStore=t.outgoingStore||new o,this.incomingStore=t.incomingStore||new o,this.queueQoSZero=void 0===t.queueQoSZero||t.queueQoSZero,this._resubscribeTopics={},this.messageIdToTopic={},this.pingTimer=null,this.connected=false,this.disconnecting=false,this.queue=[],this.connackTimer=null,this.reconnectTimer=null,this._storeProcessing=false,this._packetIdsDuringStoreProcessing={},this._storeProcessingQueue=[],this.outgoing={},this._firstConnection=true,t.topicAliasMaximum>0&&(t.topicAliasMaximum>65535?g("MqttClient :: options.topicAliasMaximum is out of range"):this.topicAliasRecv=new s(t.topicAliasMaximum)),this.on("connect",(function(){const e=this.queue;g("connect :: sending queued packets"),function t(){const r=e.shift();g("deliver :: entry %o",r);let i=null;if(!r)return void n._resubscribe();i=r.packet,g("deliver :: call _sendPacket for %o",i);let o=true;i.messageId&&0!==i.messageId&&(n.messageIdProvider.register(i.messageId)||(o=false)),o?n._sendPacket(i,(function(e){r.cb&&r.cb(e),t();})):(g("messageId: %d has already used. The message is skipped and removed.",i.messageId),t());}();})),this.on("close",(function(){g("close :: connected set to `false`"),this.connected=false,g("close :: clearing connackTimer"),clearTimeout(this.connackTimer),g("close :: clearing ping timer"),null!==n.pingTimer&&(n.pingTimer.clear(),n.pingTimer=null),this.topicAliasRecv&&this.topicAliasRecv.clear(),g("close :: calling _setupReconnect"),this._setupReconnect();})),i.call(this),g("MqttClient :: setting up stream"),this._setupStream();}h(A,i),A.prototype._setupStream=function(){const e=this,t=new c,r=u.parser(this.options);let n=null;const i=[];function o(){if(i.length)b(s);else {const e=n;n=null,e();}}function s(){g("work :: getting next packet in queue");const t=i.shift();if(t)g("work :: packet pulled from queue"),e._handlePacket(t,o);else {g("work :: no packets in queue");const e=n;n=null,g("work :: done flag is %s",!!e),e&&e();}}g("_setupStream :: calling method to clear reconnect"),this._clearReconnect(),g("_setupStream :: using streamBuilder provided to client to create stream"),this.stream=this.streamBuilder(this),r.on("packet",(function(e){g("parser :: on packet push to packets array."),i.push(e);})),t._write=function(e,t,i){n=i,g("writable stream :: parsing buffer"),r.parse(e),s();},g("_setupStream :: pipe stream to writable stream"),this.stream.pipe(t),this.stream.on("error",(function(t){g("streamErrorHandler :: error",t.message),w.includes(t.code)?(g("streamErrorHandler :: emitting error"),e.emit("error",t)):T(t);})),this.stream.on("close",(function(){var t;g("(%s)stream :: on close",e.options.clientId),(t=e.outgoing)&&(g("flushVolatile :: deleting volatile messages from the queue and setting their callbacks as error function"),Object.keys(t).forEach((function(e){t[e].volatile&&"function"==typeof t[e].cb&&(t[e].cb(new Error("Connection closed")),delete t[e]);}))),g("stream: emit close to MqttClient"),e.emit("close");})),g("_setupStream: sending packet `connect`");const a=Object.create(this.options);if(a.cmd="connect",this.topicAliasRecv&&(a.properties||(a.properties={}),this.topicAliasRecv&&(a.properties.topicAliasMaximum=this.topicAliasRecv.max)),k(this,a),r.on("error",this.emit.bind(this,"error")),this.options.properties){if(!this.options.properties.authenticationMethod&&this.options.properties.authenticationData)return e.end((()=>this.emit("error",new Error("Packet has no Authentication Method")))),this;this.options.properties.authenticationMethod&&this.options.authPacket&&"object"==typeof this.options.authPacket&&k(this,y({cmd:"auth",reasonCode:0},this.options.authPacket));}this.stream.setMaxListeners(1e3),clearTimeout(this.connackTimer),this.connackTimer=setTimeout((function(){g("!!connectTimeout hit!! Calling _cleanUp with force `true`"),e._cleanUp(true);}),this.options.connectTimeout);},A.prototype._handlePacket=function(e,t){const r=this.options;if(5===r.protocolVersion&&r.properties&&r.properties.maximumPacketSize&&r.properties.maximumPacketSize<e.length)return this.emit("error",new Error("exceeding packets size "+e.cmd)),this.end({reasonCode:149,properties:{reasonString:"Maximum packet size was exceeded"}}),this;switch(g("_handlePacket :: emitting packetreceive"),this.emit("packetreceive",e),e.cmd){case "publish":this._handlePublish(e,t);break;case "puback":case "pubrec":case "pubcomp":case "suback":case "unsuback":this._handleAck(e),t();break;case "pubrel":this._handlePubrel(e,t);break;case "connack":this._handleConnack(e),t();break;case "auth":this._handleAuth(e),t();break;case "pingresp":this._handlePingresp(e),t();break;case "disconnect":this._handleDisconnect(e),t();}},A.prototype._checkDisconnecting=function(e){return this.disconnecting&&(e&&e!==T?e(new Error("client disconnecting")):this.emit("error",new Error("client disconnecting"))),this.disconnecting},A.prototype.publish=function(e,t,r,n){g("publish :: message `%s` to topic `%s`",t,e);const i=this.options;if("function"==typeof r&&(n=r,r=null),r=y({qos:0,retain:false,dup:false},r),this._checkDisconnecting(n))return this;const o=this,s=function(){let s=0;if((1===r.qos||2===r.qos)&&(s=o._nextId(),null===s))return g("No messageId left"),false;const a={cmd:"publish",topic:e,payload:t,qos:r.qos,retain:r.retain,messageId:s,dup:r.dup};switch(5===i.protocolVersion&&(a.properties=r.properties),g("publish :: qos",r.qos),r.qos){case 1:case 2:o.outgoing[a.messageId]={volatile:false,cb:n||T},g("MqttClient:publish: packet cmd: %s",a.cmd),o._sendPacket(a,void 0,r.cbStorePut);break;default:g("MqttClient:publish: packet cmd: %s",a.cmd),o._sendPacket(a,n,r.cbStorePut);}return  true};return (this._storeProcessing||this._storeProcessingQueue.length>0||!s())&&this._storeProcessingQueue.push({invoke:s,cbStorePut:r.cbStorePut,callback:n}),this},A.prototype.subscribe=function(){const e=this,t=new Array(arguments.length);for(let e=0;e<arguments.length;e++)t[e]=arguments[e];const r=[];let n=t.shift();const i=n.resubscribe;let o=t.pop()||T,s=t.pop();const a=this.options.protocolVersion;delete n.resubscribe,"string"==typeof n&&(n=[n]),"function"!=typeof o&&(s=o,o=T);const u=d.validateTopics(n);if(null!==u)return m(o,new Error("Invalid topic "+u)),this;if(this._checkDisconnecting(o))return g("subscribe: discconecting true"),this;const l={qos:0};if(5===a&&(l.nl=false,l.rap=false,l.rh=0),s=y(l,s),Array.isArray(n)?n.forEach((function(t){if(g("subscribe: array topic %s",t),!Object.prototype.hasOwnProperty.call(e._resubscribeTopics,t)||e._resubscribeTopics[t].qos<s.qos||i){const e={topic:t,qos:s.qos};5===a&&(e.nl=s.nl,e.rap=s.rap,e.rh=s.rh,e.properties=s.properties),g("subscribe: pushing topic `%s` and qos `%s` to subs list",e.topic,e.qos),r.push(e);}})):Object.keys(n).forEach((function(t){if(g("subscribe: object topic %s",t),!Object.prototype.hasOwnProperty.call(e._resubscribeTopics,t)||e._resubscribeTopics[t].qos<n[t].qos||i){const e={topic:t,qos:n[t].qos};5===a&&(e.nl=n[t].nl,e.rap=n[t].rap,e.rh=n[t].rh,e.properties=s.properties),g("subscribe: pushing `%s` to subs list",e),r.push(e);}})),!r.length)return o(null,[]),this;const c=function(){const t=e._nextId();if(null===t)return g("No messageId left"),false;const n={cmd:"subscribe",subscriptions:r,qos:1,retain:false,dup:false,messageId:t};if(s.properties&&(n.properties=s.properties),e.options.resubscribe){g("subscribe :: resubscribe true");const t=[];r.forEach((function(r){if(e.options.reconnectPeriod>0){const n={qos:r.qos};5===a&&(n.nl=r.nl||false,n.rap=r.rap||false,n.rh=r.rh||0,n.properties=r.properties),e._resubscribeTopics[r.topic]=n,t.push(r.topic);}})),e.messageIdToTopic[n.messageId]=t;}return e.outgoing[n.messageId]={volatile:true,cb:function(e,t){if(!e){const e=t.granted;for(let t=0;t<e.length;t+=1)r[t].qos=e[t];}o(e,r);}},g("subscribe :: call _sendPacket"),e._sendPacket(n),true};return (this._storeProcessing||this._storeProcessingQueue.length>0||!c())&&this._storeProcessingQueue.push({invoke:c,callback:o}),this},A.prototype.unsubscribe=function(){const e=this,t=new Array(arguments.length);for(let e=0;e<arguments.length;e++)t[e]=arguments[e];let r=t.shift(),n=t.pop()||T,i=t.pop();"string"==typeof r&&(r=[r]),"function"!=typeof n&&(i=n,n=T);const o=d.validateTopics(r);if(null!==o)return m(n,new Error("Invalid topic "+o)),this;if(e._checkDisconnecting(n))return this;const s=function(){const t=e._nextId();if(null===t)return g("No messageId left"),false;const o={cmd:"unsubscribe",qos:1,messageId:t};return "string"==typeof r?o.unsubscriptions=[r]:Array.isArray(r)&&(o.unsubscriptions=r),e.options.resubscribe&&o.unsubscriptions.forEach((function(t){delete e._resubscribeTopics[t];})),"object"==typeof i&&i.properties&&(o.properties=i.properties),e.outgoing[o.messageId]={volatile:true,cb:n},g("unsubscribe: call _sendPacket"),e._sendPacket(o),true};return (this._storeProcessing||this._storeProcessingQueue.length>0||!s())&&this._storeProcessingQueue.push({invoke:s,callback:n}),this},A.prototype.end=function(e,t,r){const n=this;function i(){g("end :: closeStores: closing incoming and outgoing stores"),n.disconnected=true,n.incomingStore.close((function(e){n.outgoingStore.close((function(t){if(g("end :: closeStores: emitting end"),n.emit("end"),r){const n=e||t;g("end :: closeStores: invoking callback with args"),r(n);}}));})),n._deferredReconnect&&n._deferredReconnect();}function o(){g("end :: (%s) :: finish :: calling _cleanUp with force %s",n.options.clientId,e),n._cleanUp(e,(()=>{g("end :: finish :: calling process.nextTick on closeStores"),b(i.bind(n));}),t);}return g("end :: (%s)",this.options.clientId),null!=e&&"boolean"==typeof e||(r=t||T,t=e,e=false,"object"!=typeof t&&(r=t,t=null,"function"!=typeof r&&(r=T))),"object"!=typeof t&&(r=t,t=null),g("end :: cb? %s",!!r),r=r||T,this.disconnecting?(r(),this):(this._clearReconnect(),this.disconnecting=true,!e&&Object.keys(this.outgoing).length>0?(g("end :: (%s) :: calling finish in 10ms once outgoing is empty",n.options.clientId),this.once("outgoingEmpty",setTimeout.bind(null,o,10))):(g("end :: (%s) :: immediately calling finish",n.options.clientId),o()),this)},A.prototype.removeOutgoingMessage=function(e){const t=this.outgoing[e]?this.outgoing[e].cb:null;return delete this.outgoing[e],this.outgoingStore.del({messageId:e},(function(){t(new Error("Message removed"));})),this},A.prototype.reconnect=function(e){g("client reconnect");const t=this,r=function(){e?(t.options.incomingStore=e.incomingStore,t.options.outgoingStore=e.outgoingStore):(t.options.incomingStore=null,t.options.outgoingStore=null),t.incomingStore=t.options.incomingStore||new o,t.outgoingStore=t.options.outgoingStore||new o,t.disconnecting=false,t.disconnected=false,t._deferredReconnect=null,t._reconnect();};return this.disconnecting&&!this.disconnected?this._deferredReconnect=r:r(),this},A.prototype._reconnect=function(){g("_reconnect: emitting reconnect to client"),this.emit("reconnect"),this.connected?(this.end((()=>{this._setupStream();})),g("client already connected. disconnecting first.")):(g("_reconnect: calling _setupStream"),this._setupStream());},A.prototype._setupReconnect=function(){const e=this;!e.disconnecting&&!e.reconnectTimer&&e.options.reconnectPeriod>0?(this.reconnecting||(g("_setupReconnect :: emit `offline` state"),this.emit("offline"),g("_setupReconnect :: set `reconnecting` to `true`"),this.reconnecting=true),g("_setupReconnect :: setting reconnectTimer for %d ms",e.options.reconnectPeriod),e.reconnectTimer=setInterval((function(){g("reconnectTimer :: reconnect triggered!"),e._reconnect();}),e.options.reconnectPeriod)):g("_setupReconnect :: doing nothing...");},A.prototype._clearReconnect=function(){g("_clearReconnect : clearing reconnect timer"),this.reconnectTimer&&(clearInterval(this.reconnectTimer),this.reconnectTimer=null);},A.prototype._cleanUp=function(e,t){const r=arguments[2];if(t&&(g("_cleanUp :: done callback provided for on stream close"),this.stream.on("close",t)),g("_cleanUp :: forced? %s",e),e)0===this.options.reconnectPeriod&&this.options.clean&&S(this.outgoing),g("_cleanUp :: (%s) :: destroying stream",this.options.clientId),this.stream.destroy();else {const e=y({cmd:"disconnect"},r);g("_cleanUp :: (%s) :: call _sendPacket with disconnect packet",this.options.clientId),this._sendPacket(e,m.bind(null,this.stream.end.bind(this.stream)));}this.disconnecting||(g("_cleanUp :: client not disconnecting. Clearing and resetting reconnect."),this._clearReconnect(),this._setupReconnect()),null!==this.pingTimer&&(g("_cleanUp :: clearing pingTimer"),this.pingTimer.clear(),this.pingTimer=null),t&&!this.connected&&(g("_cleanUp :: (%s) :: removing stream `done` callback `close` listener",this.options.clientId),this.stream.removeListener("close",t),t());},A.prototype._sendPacket=function(e,t,r){g("_sendPacket :: (%s) ::  start",this.options.clientId),r=r||T,t=t||T;const n=function(e,t){if(5===e.options.protocolVersion&&"publish"===t.cmd){let r;t.properties&&(r=t.properties.topicAlias);const n=t.topic.toString();if(e.topicAliasSend)if(r){if(0!==n.length&&(g("applyTopicAlias :: register topic: %s - alias: %d",n,r),!e.topicAliasSend.put(n,r)))return g("applyTopicAlias :: error out of range. topic: %s - alias: %d",n,r),new Error("Sending Topic Alias out of range")}else 0!==n.length&&(e.options.autoAssignTopicAlias?(r=e.topicAliasSend.getAliasByTopic(n),r?(t.topic="",t.properties={...t.properties,topicAlias:r},g("applyTopicAlias :: auto assign(use) topic: %s - alias: %d",n,r)):(r=e.topicAliasSend.getLruAlias(),e.topicAliasSend.put(n,r),t.properties={...t.properties,topicAlias:r},g("applyTopicAlias :: auto assign topic: %s - alias: %d",n,r))):e.options.autoUseTopicAlias&&(r=e.topicAliasSend.getAliasByTopic(n),r&&(t.topic="",t.properties={...t.properties,topicAlias:r},g("applyTopicAlias :: auto use topic: %s - alias: %d",n,r))));else if(r)return g("applyTopicAlias :: error out of range. topic: %s - alias: %d",n,r),new Error("Sending Topic Alias out of range")}}(this,e);if(n)t(n);else {if(!this.connected)return "auth"===e.cmd?(this._shiftPingInterval(),void k(this,e,t)):(g("_sendPacket :: client not connected. Storing packet offline."),void this._storePacket(e,t,r));switch(this._shiftPingInterval(),e.cmd){case "publish":break;case "pubrel":return void C(this,e,t,r);default:return void k(this,e,t)}switch(e.qos){case 2:case 1:C(this,e,t,r);break;default:k(this,e,t);}g("_sendPacket :: (%s) ::  end",this.options.clientId);}},A.prototype._storePacket=function(e,t,r){g("_storePacket :: packet: %o",e),g("_storePacket :: cb? %s",!!t),r=r||T;let n=e;if("publish"===n.cmd){n=p(e);const r=E(this,n);if(r)return t&&t(r)}0===(n.qos||0)&&this.queueQoSZero||"publish"!==n.cmd?this.queue.push({packet:n,cb:t}):n.qos>0?(t=this.outgoing[n.messageId]?this.outgoing[n.messageId].cb:null,this.outgoingStore.put(n,(function(e){if(e)return t&&t(e);r();}))):t&&t(new Error("No connection to broker"));},A.prototype._setupPingTimer=function(){g("_setupPingTimer :: keepalive %d (seconds)",this.options.keepalive);const e=this;!this.pingTimer&&this.options.keepalive&&(this.pingResp=true,this.pingTimer=f((function(){e._checkPing();}),1e3*this.options.keepalive));},A.prototype._shiftPingInterval=function(){this.pingTimer&&this.options.keepalive&&this.options.reschedulePings&&this.pingTimer.reschedule(1e3*this.options.keepalive);},A.prototype._checkPing=function(){g("_checkPing :: checking ping..."),this.pingResp?(g("_checkPing :: ping response received. Clearing flag and sending `pingreq`"),this.pingResp=false,this._sendPacket({cmd:"pingreq"})):(g("_checkPing :: calling _cleanUp with force true"),this._cleanUp(true));},A.prototype._handlePingresp=function(){this.pingResp=true;},A.prototype._handleConnack=function(e){g("_handleConnack");const t=this.options,r=5===t.protocolVersion?e.reasonCode:e.returnCode;if(clearTimeout(this.connackTimer),delete this.topicAliasSend,e.properties){if(e.properties.topicAliasMaximum){if(e.properties.topicAliasMaximum>65535)return void this.emit("error",new Error("topicAliasMaximum from broker is out of range"));e.properties.topicAliasMaximum>0&&(this.topicAliasSend=new a(e.properties.topicAliasMaximum));}e.properties.serverKeepAlive&&t.keepalive&&(t.keepalive=e.properties.serverKeepAlive,this._shiftPingInterval()),e.properties.maximumPacketSize&&(t.properties||(t.properties={}),t.properties.maximumPacketSize=e.properties.maximumPacketSize);}if(0===r)this.reconnecting=false,this._onConnect(e);else if(r>0){const e=new Error("Connection refused: "+_[r]);e.code=r,this.emit("error",e);}},A.prototype._handleAuth=function(e){const t=this.options.protocolVersion,r=5===t?e.reasonCode:e.returnCode;if(5!==t){const e=new Error("Protocol error: Auth packets are only supported in MQTT 5. Your version:"+t);return e.code=r,void this.emit("error",e)}const n=this;this.handleAuth(e,(function(e,t){if(e)n.emit("error",e);else if(24===r)n.reconnecting=false,n._sendPacket(t);else {const t=new Error("Connection refused: "+_[r]);e.code=r,n.emit("error",t);}}));},A.prototype.handleAuth=function(e,t){t();},A.prototype._handlePublish=function(e,t){g("_handlePublish: packet %o",e),t=void 0!==t?t:T;let r=e.topic.toString();const n=e.payload,i=e.qos,o=e.messageId,s=this,a=this.options,u=[0,16,128,131,135,144,145,151,153];if(5===this.options.protocolVersion){let t;if(e.properties&&(t=e.properties.topicAlias),void 0!==t)if(0===r.length){if(!(t>0&&t<=65535))return g("_handlePublish :: topic alias out of range. alias: %d",t),void this.emit("error",new Error("Received Topic Alias is out of range"));{const e=this.topicAliasRecv.getTopicByAlias(t);if(!e)return g("_handlePublish :: unregistered topic alias. alias: %d",t),void this.emit("error",new Error("Received unregistered Topic Alias"));r=e,g("_handlePublish :: topic complemented by alias. topic: %s - alias: %d",r,t);}}else {if(!this.topicAliasRecv.put(r,t))return g("_handlePublish :: topic alias out of range. alias: %d",t),void this.emit("error",new Error("Received Topic Alias is out of range"));g("_handlePublish :: registered topic: %s - alias: %d",r,t);}}switch(g("_handlePublish: qos %d",i),i){case 2:a.customHandleAcks(r,n,e,(function(r,n){return r instanceof Error||(n=r,r=null),r?s.emit("error",r):-1===u.indexOf(n)?s.emit("error",new Error("Wrong reason code for pubrec")):void(n?s._sendPacket({cmd:"pubrec",messageId:o,reasonCode:n},t):s.incomingStore.put(e,(function(){s._sendPacket({cmd:"pubrec",messageId:o},t);})))}));break;case 1:a.customHandleAcks(r,n,e,(function(i,a){return i instanceof Error||(a=i,i=null),i?s.emit("error",i):-1===u.indexOf(a)?s.emit("error",new Error("Wrong reason code for puback")):(a||s.emit("message",r,n,e),void s.handleMessage(e,(function(e){if(e)return t&&t(e);s._sendPacket({cmd:"puback",messageId:o,reasonCode:a},t);})))}));break;case 0:this.emit("message",r,n,e),this.handleMessage(e,t);break;default:g("_handlePublish: unknown QoS. Doing nothing.");}},A.prototype.handleMessage=function(e,t){t();},A.prototype._handleAck=function(e){const t=e.messageId,r=e.cmd;let n=null;const i=this.outgoing[t]?this.outgoing[t].cb:null,o=this;let s;if(i){switch(g("_handleAck :: packet type",r),r){case "pubcomp":case "puback":{const r=e.reasonCode;r&&r>0&&16!==r&&(s=new Error("Publish error: "+_[r]),s.code=r,i(s,e)),delete this.outgoing[t],this.outgoingStore.del(e,i),this.messageIdProvider.deallocate(t),this._invokeStoreProcessingQueue();break}case "pubrec":{n={cmd:"pubrel",qos:2,messageId:t};const r=e.reasonCode;r&&r>0&&16!==r?(s=new Error("Publish error: "+_[r]),s.code=r,i(s,e)):this._sendPacket(n);break}case "suback":delete this.outgoing[t],this.messageIdProvider.deallocate(t);for(let r=0;r<e.granted.length;r++)if(0!=(128&e.granted[r])){const e=this.messageIdToTopic[t];e&&e.forEach((function(e){delete o._resubscribeTopics[e];}));}this._invokeStoreProcessingQueue(),i(null,e);break;case "unsuback":delete this.outgoing[t],this.messageIdProvider.deallocate(t),this._invokeStoreProcessingQueue(),i(null);break;default:o.emit("error",new Error("unrecognized packet type"));}this.disconnecting&&0===Object.keys(this.outgoing).length&&this.emit("outgoingEmpty");}else g("_handleAck :: Server sent an ack in error. Ignoring.");},A.prototype._handlePubrel=function(e,t){g("handling pubrel packet"),t=void 0!==t?t:T;const r=e.messageId,n=this,i={cmd:"pubcomp",messageId:r};n.incomingStore.get(e,(function(e,r){e?n._sendPacket(i,t):(n.emit("message",r.topic,r.payload,r),n.handleMessage(r,(function(e){if(e)return t(e);n.incomingStore.del(r,T),n._sendPacket(i,t);})));}));},A.prototype._handleDisconnect=function(e){this.emit("disconnect",e);},A.prototype._nextId=function(){return this.messageIdProvider.allocate()},A.prototype.getLastMessageId=function(){return this.messageIdProvider.getLastAllocated()},A.prototype._resubscribe=function(){g("_resubscribe");const e=Object.keys(this._resubscribeTopics);if(!this._firstConnection&&(this.options.clean||5===this.options.protocolVersion&&!this.connackPacket.sessionPresent)&&e.length>0)if(this.options.resubscribe)if(5===this.options.protocolVersion){g("_resubscribe: protocolVersion 5");for(let t=0;t<e.length;t++){const r={};r[e[t]]=this._resubscribeTopics[e[t]],r.resubscribe=true,this.subscribe(r,{properties:r[e[t]].properties});}}else this._resubscribeTopics.resubscribe=true,this.subscribe(this._resubscribeTopics);else this._resubscribeTopics={};this._firstConnection=false;},A.prototype._onConnect=function(e){if(this.disconnected)return void this.emit("connect",e);const t=this;this.connackPacket=e,this.messageIdProvider.clear(),this._setupPingTimer(),this.connected=true,function r(){let n=t.outgoingStore.createStream();function i(){t._storeProcessing=false,t._packetIdsDuringStoreProcessing={};}function o(){n.destroy(),n=null,t._flushStoreProcessingQueue(),i();}t.once("close",o),n.on("error",(function(e){i(),t._flushStoreProcessingQueue(),t.removeListener("close",o),t.emit("error",e);})),n.on("end",(function(){let n=true;for(const e in t._packetIdsDuringStoreProcessing)if(!t._packetIdsDuringStoreProcessing[e]){n=false;break}n?(i(),t.removeListener("close",o),t._invokeAllStoreProcessingQueue(),t.emit("connect",e)):r();})),function e(){if(!n)return;t._storeProcessing=true;const r=n.read(1);let i;r?t._packetIdsDuringStoreProcessing[r.messageId]?e():t.disconnecting||t.reconnectTimer?n.destroy&&n.destroy():(i=t.outgoing[r.messageId]?t.outgoing[r.messageId].cb:null,t.outgoing[r.messageId]={volatile:false,cb:function(t,r){i&&i(t,r),e();}},t._packetIdsDuringStoreProcessing[r.messageId]=true,t.messageIdProvider.register(r.messageId)?t._sendPacket(r):g("messageId: %d has already used.",r.messageId)):n.once("readable",e);}();}();},A.prototype._invokeStoreProcessingQueue=function(){if(this._storeProcessingQueue.length>0){const e=this._storeProcessingQueue[0];if(e&&e.invoke())return this._storeProcessingQueue.shift(),true}return  false},A.prototype._invokeAllStoreProcessingQueue=function(){for(;this._invokeStoreProcessingQueue(););},A.prototype._flushStoreProcessingQueue=function(){for(const e of this._storeProcessingQueue)e.cbStorePut&&e.cbStorePut(new Error("Connection closed")),e.callback&&e.callback(new Error("Connection closed"));this._storeProcessingQueue.splice(0);},e.exports=A;},9908:function(e,t,r){const{Buffer:n}=r(8764),i=r(8473).Transform,o=r(5981);let s,a,u,l=false;e.exports=function(e,t){if(t.hostname=t.hostname||t.host,!t.hostname)throw new Error("Could not determine host. Specify host manually.");const r="MQIsdp"===t.protocolId&&3===t.protocolVersion?"mqttv3.1":"mqtt";!function(e){e.hostname||(e.hostname="localhost"),e.path||(e.path="/"),e.wsOptions||(e.wsOptions={});}(t);const c=function(e,t){const r="alis"===e.protocol?"wss":"ws";let n=r+"://"+e.hostname+e.path;return e.port&&80!==e.port&&443!==e.port&&(n=r+"://"+e.hostname+":"+e.port+e.path),"function"==typeof e.transformWsUrl&&(n=e.transformWsUrl(n,e,t)),n}(t,e);return s=t.my,s.connectSocket({url:c,protocols:r}),a=function(){const e=new i;return e._write=function(e,t,r){s.sendSocketMessage({data:e.buffer,success:function(){r();},fail:function(){r(new Error);}});},e._flush=function(e){s.closeSocket({success:function(){e();}});},e}(),u=o.obj(),l||(l=true,s.onSocketOpen((function(){u.setReadable(a),u.setWritable(a),u.emit("connect");})),s.onSocketMessage((function(e){if("string"==typeof e.data){const t=n.from(e.data,"base64");a.push(t);}else {const t=new 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"mqtt":t.protocol="mqtts";break;case "ws":t.protocol="wss";break;case "wx":t.protocol="wxs";break;case "ali":t.protocol="alis";break;default:throw new Error('Unknown protocol for secure connection: "'+t.protocol+'"!')}}if(!l[t.protocol]){const e=-1!==["mqtts","wss"].indexOf(t.protocol);t.protocol=["mqtt","mqtts","ws","wss","wx","wxs","ali","alis"].filter((function(t,r){return (!e||r%2!=0)&&"function"==typeof l[t]}))[0];}if(false===t.clean&&!t.clientId)throw new Error("Missing clientId for unclean clients");t.protocol&&(t.defaultProtocol=t.protocol);const r=new i((function(e){return t.servers&&(e._reconnectCount&&e._reconnectCount!==t.servers.length||(e._reconnectCount=0),t.host=t.servers[e._reconnectCount].host,t.port=t.servers[e._reconnectCount].port,t.protocol=t.servers[e._reconnectCount].protocol?t.servers[e._reconnectCount].protocol:t.defaultProtocol,t.hostname=t.host,e._reconnectCount++),u("calling streambuilder for",t.protocol),l[t.protocol](e,t)}),t);return r.on("error",(function(){})),r} void 0!==n&&"browser"!==n.title||"function"!=typeof r?(l.mqtt=r(4983),l.tcp=r(4983),l.ssl=r(4606),l.tls=r(4606),l.mqtts=r(4606)):(l.wx=r(7465),l.wxs=r(7465),l.ali=r(9908),l.alis=r(9908)),l.ws=r(4574),l.wss=r(4574),e.exports=c,e.exports.connect=c,e.exports.MqttClient=i,e.exports.Store=o;},4983:function(e,t,r){const n=r(10),i=r(1227)("mqttjs:tcp");e.exports=function(e,t){t.port=t.port||1883,t.hostname=t.hostname||t.host||"localhost";const r=t.port,o=t.hostname;return i("port %d and host %s",r,o),n.createConnection(r,o)};},4606:function(e,t,r){const n=r(4995),i=r(10),o=r(1227)("mqttjs:tls");e.exports=function(e,t){t.port=t.port||8883,t.host=t.hostname||t.host||"localhost",0===i.isIP(t.host)&&(t.servername=t.host),t.rejectUnauthorized=false!==t.rejectUnauthorized,delete t.path,o("port %d host %s rejectUnauthorized %b",t.port,t.host,t.rejectUnauthorized);const r=n.connect(t);function s(n){t.rejectUnauthorized&&e.emit("error",n),r.end();}return r.on("secureConnect",(function(){t.rejectUnauthorized&&!r.authorized?r.emit("error",new Error("TLS not authorized")):r.removeListener("error",s);})),r.on("error",s),r};},4574:function(e,t,r){var n=r(4155);const{Buffer:i}=r(8764),o=r(7026),s=r(1227)("mqttjs:ws"),a=r(5981),u=r(8473).Transform,l=["rejectUnauthorized","ca","cert","key","pfx","passphrase"],c=void 0!==n&&"browser"===n.title||"function"==typeof r;function h(e,t){let r=e.protocol+"://"+e.hostname+":"+e.port+e.path;return "function"==typeof e.transformWsUrl&&(r=e.transformWsUrl(r,e,t)),r}function f(e){const t=e;return e.hostname||(t.hostname="localhost"),e.port||("wss"===e.protocol?t.port=443:t.port=80),e.path||(t.path="/"),e.wsOptions||(t.wsOptions={}),c||"wss"!==e.protocol||l.forEach((function(r){Object.prototype.hasOwnProperty.call(e,r)&&!Object.prototype.hasOwnProperty.call(e.wsOptions,r)&&(t.wsOptions[r]=e[r]);})),t}e.exports=c?function(e,t){let r;s("browserStreamBuilder");const n=function(e){const t=f(e);if(t.hostname||(t.hostname=t.host),!t.hostname){if("undefined"==typeof document)throw new Error("Could not determine host. Specify host manually.");const e=new URL(document.URL);t.hostname=e.hostname,t.port||(t.port=e.port);}return void 0===t.objectMode&&(t.objectMode=!(true===t.binary||void 0===t.binary)),t}(t),o=n.browserBufferSize||524288,l=t.browserBufferTimeout||1e3,c=!t.objectMode,p=function(e,t){const r="MQIsdp"===t.protocolId&&3===t.protocolVersion?"mqttv3.1":"mqtt",n=h(t,e),i=new WebSocket(n,[r]);return i.binaryType="arraybuffer",i}(e,t),d=function(e,t,r){const n=new u({objectModeMode:e.objectMode});return n._write=function e(t,r,n){p.bufferedAmount>o&&setTimeout(e,l,t,r,n),c&&"string"==typeof t&&(t=i.from(t,"utf8"));try{p.send(t);}catch(e){return n(e)}n();},n._flush=function(e){p.close(),e();},n}(t);t.objectMode||(d._writev=w),d.on("close",(()=>{p.close();}));const y=void 0!==p.addEventListener;function g(){r.setReadable(d),r.setWritable(d),r.emit("connect");}function b(){r.end(),r.destroy();}function m(e){r.destroy(e);}function v(e){let t=e.data;t=t instanceof ArrayBuffer?i.from(t):i.from(t,"utf8"),d.push(t);}function w(e,t){const r=new Array(e.length);for(let t=0;t<e.length;t++)"string"==typeof e[t].chunk?r[t]=i.from(e[t],"utf8"):r[t]=e[t].chunk;this._write(i.concat(r),"binary",t);}return p.readyState===p.OPEN?r=d:(r=r=a(void 0,void 0,t),t.objectMode||(r._writev=w),y?p.addEventListener("open",g):p.onopen=g),r.socket=p,y?(p.addEventListener("close",b),p.addEventListener("error",m),p.addEventListener("message",v)):(p.onclose=b,p.onerror=m,p.onmessage=v),r}:function(e,t){s("streamBuilder");const r=f(t),n=h(r,e),i=function(e,t,r){s("createWebSocket"),s("protocol: "+r.protocolId+" "+r.protocolVersion);const n="MQIsdp"===r.protocolId&&3===r.protocolVersion?"mqttv3.1":"mqtt";return s("creating new Websocket for url: "+t+" and protocol: "+n),new o(t,[n],r.wsOptions)}(0,n,r),a=o.createWebSocketStream(i,r.wsOptions);return a.url=n,i.on("close",(()=>{a.destroy();})),a};},7465:function(e,t,r){const{Buffer:n}=r(8764),i=r(8473).Transform,o=r(5981);let s,a,u;e.exports=function(e,t){if(t.hostname=t.hostname||t.host,!t.hostname)throw new Error("Could not determine host. Specify host manually.");const r="MQIsdp"===t.protocolId&&3===t.protocolVersion?"mqttv3.1":"mqtt";!function(e){e.hostname||(e.hostname="localhost"),e.path||(e.path="/"),e.wsOptions||(e.wsOptions={});}(t);const l=function(e,t){const r="wxs"===e.protocol?"wss":"ws";let n=r+"://"+e.hostname+e.path;return e.port&&80!==e.port&&443!==e.port&&(n=r+"://"+e.hostname+":"+e.port+e.path),"function"==typeof e.transformWsUrl&&(n=e.transformWsUrl(n,e,t)),n}(t,e);s=wx.connectSocket({url:l,protocols:[r]}),a=function(){const e=new i;return e._write=function(e,t,r){s.send({data:e.buffer,success:function(){r();},fail:function(e){r(new Error(e));}});},e._flush=function(e){s.close({success:function(){e();}});},e}(),u=o.obj(),u._destroy=function(e,t){s.close({success:function(){t&&t(e);}});};const c=u.destroy;return u.destroy=function(){u.destroy=c;const e=this;setTimeout((function(){s.close({fail:function(){e._destroy(new Error);}});}),0);}.bind(u),s.onOpen((function(){u.setReadable(a),u.setWritable(a),u.emit("connect");})),s.onMessage((function(e){let t=e.data;t=t instanceof ArrayBuffer?n.from(t):n.from(t,"utf8"),a.push(t);})),s.onClose((function(){u.end(),u.destroy();})),s.onError((function(e){u.destroy(new Error(e.errMsg));})),u};},298:function(e){function t(){if(!(this instanceof t))return new t;this.nextId=Math.max(1,Math.floor(65535*Math.random()));}t.prototype.allocate=function(){const e=this.nextId++;return 65536===this.nextId&&(this.nextId=1),e},t.prototype.getLastAllocated=function(){return 1===this.nextId?65535:this.nextId-1},t.prototype.register=function(e){return  true},t.prototype.deallocate=function(e){},t.prototype.clear=function(){},e.exports=t;},2681:function(e,t,r){const n=r(7529),i=r(8473).Readable,o={objectMode:true},s={clean:true};function a(e){if(!(this instanceof a))return new a(e);this.options=e||{},this.options=n(s,e),this._inflights=new Map;}a.prototype.put=function(e,t){return this._inflights.set(e.messageId,e),t&&t(),this},a.prototype.createStream=function(){const e=new i(o),t=[];let r=false,n=0;return this._inflights.forEach((function(e,r){t.push(e);})),e._read=function(){!r&&n<t.length?this.push(t[n++]):this.push(null);},e.destroy=function(){if(r)return;const e=this;r=true,setTimeout((function(){e.emit("close");}),0);},e},a.prototype.del=function(e,t){return (e=this._inflights.get(e.messageId))?(this._inflights.delete(e.messageId),t(null,e)):t&&t(new Error("missing packet")),this},a.prototype.get=function(e,t){return (e=this._inflights.get(e.messageId))?t(null,e):t&&t(new Error("missing packet")),this},a.prototype.close=function(e){this.options.clean&&(this._inflights=null),e&&e();},e.exports=a;},8254:function(e){function t(e){if(!(this instanceof t))return new t(e);this.aliasToTopic={},this.max=e;}t.prototype.put=function(e,t){return !(0===t||t>this.max||(this.aliasToTopic[t]=e,this.length=Object.keys(this.aliasToTopic).length,0))},t.prototype.getTopicByAlias=function(e){return this.aliasToTopic[e]},t.prototype.clear=function(){this.aliasToTopic={};},e.exports=t;},226:function(e,t,r){const n=r(9593),i=r(423).Q;function o(e){if(!(this instanceof o))return new o(e);e>0&&(this.aliasToTopic=new n({max:e}),this.topicToAlias={},this.numberAllocator=new i(1,e),this.max=e,this.length=0);}o.prototype.put=function(e,t){if(0===t||t>this.max)return  false;const r=this.aliasToTopic.get(t);return r&&delete this.topicToAlias[r],this.aliasToTopic.set(t,e),this.topicToAlias[e]=t,this.numberAllocator.use(t),this.length=this.aliasToTopic.length,true},o.prototype.getTopicByAlias=function(e){return this.aliasToTopic.get(e)},o.prototype.getAliasByTopic=function(e){const t=this.topicToAlias[e];return void 0!==t&&this.aliasToTopic.get(t),t},o.prototype.clear=function(){this.aliasToTopic.reset(),this.topicToAlias={},this.numberAllocator.clear(),this.length=0;},o.prototype.getLruAlias=function(){return this.numberAllocator.firstVacant()||this.aliasToTopic.keys()[this.aliasToTopic.length-1]},e.exports=o;},3380:function(e){function t(e){const t=e.split("/");for(let e=0;e<t.length;e++)if("+"!==t[e]){if("#"===t[e])return e===t.length-1;if(-1!==t[e].indexOf("+")||-1!==t[e].indexOf("#"))return  false}return  true}e.exports={validateTopics:function(e){if(0===e.length)return "empty_topic_list";for(let r=0;r<e.length;r++)if(!t(e[r]))return e[r];return null}};}},t={};function r(n){var i=t[n];if(void 0!==i)return i.exports;var o=t[n]={id:n,loaded:false,exports:{}};return e[n].call(o.exports,o,o.exports,r),o.loaded=true,o.exports}r.d=function(e,t){for(var n in t)r.o(t,n)&&!r.o(e,n)&&Object.defineProperty(e,n,{enumerable:true,get:t[n]});},r.g=function(){if("object"==typeof globalThis)return globalThis;try{return this||new Function("return this")()}catch(e){if("object"==typeof window)return window}}(),r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.nmd=function(e){return e.paths=[],e.children||(e.children=[]),e};var n=r(2878);mqtt_browser.exports=n;}();
	return mqtt_browser.exports;
}

var mqtt_browserExports = requireMqtt_browser();
var mqtt = /*@__PURE__*/getDefaultExportFromCjs(mqtt_browserExports);

const CONNECTION_STATUS = {
    CONNECTING: "CONNECTING",
    RECONNECTING: "RECONNECTING",
    CONNECTED: "CONNECTED",
    OFFLINE: "OFFLINE",
    ERROR: "ERROR",
};
class Observable {
    constructor(value) {
        this.callbacks = [];
        this.value = value;
    }
    set(value) {
        if (this.value === value) {
            return this;
        }
        this.value = value;
        this.callbacks.forEach((callback) => callback(value));
        return this;
    }
    get() {
        return this.value;
    }
    subscribe(callback) {
        this.callbacks.push(callback);
        return () => {
            this.callbacks = this.callbacks.filter((cb) => cb !== callback);
            return this;
        };
    }
    destroy() {
        this.callbacks = [];
    }
}
class Connector {
    constructor() {
        this._status = new Observable(CONNECTION_STATUS.OFFLINE);
        this._messages = new Observable([]);
        this.onMessageReceived = (topic, message) => {
            var _a;
            try {
                const parsedMessage = JSON.parse(message.toString());
                if (topic === `short/${(_a = this.options) === null || _a === void 0 ? void 0 : _a.slug}/message/recv`) {
                    const currentMessages = this._messages.get();
                    this._messages.set([parsedMessage, ...currentMessages]);
                }
            }
            catch (error) {
                // Swallow parse errors to avoid breaking message flow
            }
        };
    }
    get status() {
        return this._status;
    }
    get messages() {
        return this._messages;
    }
    getTopics() {
        if (!this.options) {
            return [];
        }
        return [
            `short/${this.options.slug}/analytics/recv`,
            `short/${this.options.slug}/message/recv`,
        ];
    }
    /**
     * Safely remove the 'message' listener from an MQTT client instance.
     * Different client builds may expose different APIs (removeListener/off/removeEventListener).
     */
    removeMessageListenerSafe(client) {
        const anyClient = client;
        try {
            if (typeof anyClient["removeListener"] === "function") {
                anyClient["removeListener"]("message", this.onMessageReceived);
            }
            else if (typeof anyClient["off"] === "function") {
                anyClient["off"]("message", this.onMessageReceived);
            }
            else if (typeof anyClient["removeEventListener"] === "function") {
                anyClient["removeEventListener"]("message", this.onMessageReceived);
            }
        }
        catch (err) {
            // Swallow listener cleanup errors to avoid breaking disconnect flow
        }
    }
    /**
     * Safely unsubscribe from topics if supported by the client.
     */
    unsubscribeSafe(client, topics) {
        const anyClient = client;
        try {
            if (Array.isArray(topics) &&
                topics.length > 0 &&
                typeof anyClient["unsubscribe"] === "function") {
                anyClient["unsubscribe"](topics);
            }
        }
        catch (err) {
            // Swallow unsubscribe errors
        }
    }
    connect(options) {
        if (this.client || this.tempClient) {
            return;
        }
        this.options = options;
        this.tempClient = mqtt.connect(options.brokerUrl || "wss://messaging.interactify.live/mqtt", {
            keepalive: 5,
            protocolId: "MQTT",
            protocolVersion: 4,
            clean: true,
            reconnectPeriod: 1000,
            connectTimeout: 5 * 1000,
            clientId: `${options.space_slug}:${options.slug}:${options.user_id}:${options.session}:${options.scope}`,
            username: options.user_id,
            password: options.token,
            will: {
                topic: "WillMsg",
                payload: "Connection Closed abnormally..!",
                qos: 0,
                retain: false,
            },
            rejectUnauthorized: false,
        });
        this._status.set(CONNECTION_STATUS.CONNECTING);
        this.tempClient.once("connect", () => {
            this.client = this.tempClient;
            this.tempClient = undefined;
            // Set status to CONNECTED immediately since we're already connected
            this._status.set(CONNECTION_STATUS.CONNECTED);
            for (const topic of this.getTopics()) {
                console.log("[Interactify Connector] MQTT subscribing:", topic);
                this.client.subscribe(topic, (err, granted) => {
                    if (err) {
                        console.error("[Interactify Connector] MQTT subscribe failed:", topic, err);
                        return;
                    }
                    console.log("[Interactify Connector] MQTT subscribed:", topic, granted);
                });
            }
            this.client.on("message", this.onMessageReceived);
        });
        this.tempClient.on("reconnect", () => {
            this._status.set(CONNECTION_STATUS.RECONNECTING);
        });
        this.tempClient.on("error", () => {
            // TODO setStatus(err.message);
            this._status.set(CONNECTION_STATUS.ERROR);
        });
        this.tempClient.on("offline", () => {
            this._status.set(CONNECTION_STATUS.OFFLINE);
        });
        this.tempClient.on("end", () => {
            this._status.set(CONNECTION_STATUS.OFFLINE);
        });
    }
    disconnect() {
        if (this.tempClient) {
            this.removeMessageListenerSafe(this.tempClient);
            this.unsubscribeSafe(this.tempClient, this.getTopics());
            try {
                this.tempClient.end(true);
            }
            catch (err) {
                // Swallow end errors for temp client
            }
            this.tempClient = undefined;
        }
        if (this.client) {
            this.removeMessageListenerSafe(this.client);
            this.unsubscribeSafe(this.client, this.getTopics());
            try {
                this.client.end(true);
            }
            catch (err) {
                // Swallow end errors for main client
            }
            this.client = undefined;
        }
        this._status.set(CONNECTION_STATUS.OFFLINE);
    }
    publish(type) {
        if (!this.client || !this.options) {
            throw new Error("not connected");
        }
        this.client.publish(`${this.options.scope}/${this.options.slug}/analytics/send`, JSON.stringify({
            event_type: "ACTION_CLICK",
            value: {
                event_type: type,
                user_id: this.options.user_id,
            },
        }));
    }
    sendMessage(message) {
        if (!this.client || !this.options) {
            throw new Error("not connected");
        }
        const chatMessage = {
            avatar: message.avatar || "",
            text: message.text,
            created_at: new Date().toISOString(),
            user_id: this.options.user_id,
            display_name: this.options.display_name || this.options.user_id,
            live_slug: "",
            space_slug: this.options.space_slug,
            visible: message.visible !== false,
            slug: this.options.slug,
            reply_to: message.replyTo
                ? {
                    text: message.replyTo.text,
                    user_id: message.replyTo.userID,
                    display_name: message.replyTo.displayName,
                    slug: message.replyTo.slug,
                    avatar: message.replyTo.avatar || "",
                    created_at: message.replyTo.created_at || "",
                    short_slug: message.replyTo.short_slug || "",
                    space_slug: message.replyTo.space_slug || "",
                    visible: message.replyTo.visible !== false,
                }
                : undefined,
        };
        this.client.publish(`short/${this.options.slug}/message/send`, JSON.stringify(chatMessage));
    }
    sendLikeEvent(messageSlug, options) {
        if (!this.client || !this.options) {
            throw new Error("not connected");
        }
        const likeEvent = {
            messageSlug,
            user_id: this.options.user_id,
            space_slug: this.options.space_slug,
            slug: this.options.slug,
            like_type: (options === null || options === void 0 ? void 0 : options.like_type) || "like",
        };
        this.client.publish(`short/${this.options.slug}/like/send`, JSON.stringify(likeEvent));
    }
}
Connector.CONNECTION_STATUS = CONNECTION_STATUS;

exports.Connector = Connector;