firebase/firebase-database.js

Firebase JavaScript library for web and Node.js

import{_getProvider,getApp as e,_registerComponent as t,registerVersion as n,_isFirebaseServerApp as r,SDK_VERSION as i}from"https://www.gstatic.com/firebasejs/11.9.1/firebase-app.js";const o=!1,s="${JSCORE_VERSION}",assert=function(e,t){if(!e)throw assertionError(t)},assertionError=function(e){return new Error("Firebase Database ("+s+") INTERNAL ASSERT FAILED: "+e)},stringToByteArray$1=function(e){const t=[];let n=0;for(let r=0;r<e.length;r++){let i=e.charCodeAt(r);i<128?t[n++]=i:i<2048?(t[n++]=i>>6|192,t[n++]=63&i|128):55296==(64512&i)&&r+1<e.length&&56320==(64512&e.charCodeAt(r+1))?(i=65536+((1023&i)<<10)+(1023&e.charCodeAt(++r)),t[n++]=i>>18|240,t[n++]=i>>12&63|128,t[n++]=i>>6&63|128,t[n++]=63&i|128):(t[n++]=i>>12|224,t[n++]=i>>6&63|128,t[n++]=63&i|128)}return t},a={byteToCharMap_:null,charToByteMap_:null,byteToCharMapWebSafe_:null,charToByteMapWebSafe_:null,ENCODED_VALS_BASE:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",get ENCODED_VALS(){return this.ENCODED_VALS_BASE+"+/="},get ENCODED_VALS_WEBSAFE(){return this.ENCODED_VALS_BASE+"-_."},HAS_NATIVE_SUPPORT:"function"==typeof atob,encodeByteArray(e,t){if(!Array.isArray(e))throw Error("encodeByteArray takes an array as a parameter");this.init_();const n=t?this.byteToCharMapWebSafe_:this.byteToCharMap_,r=[];for(let t=0;t<e.length;t+=3){const i=e[t],o=t+1<e.length,s=o?e[t+1]:0,a=t+2<e.length,l=a?e[t+2]:0,h=i>>2,c=(3&i)<<4|s>>4;let d=(15&s)<<2|l>>6,u=63&l;a||(u=64,o||(d=64)),r.push(n[h],n[c],n[d],n[u])}return r.join("")},encodeString(e,t){return this.HAS_NATIVE_SUPPORT&&!t?btoa(e):this.encodeByteArray(stringToByteArray$1(e),t)},decodeString(e,t){return this.HAS_NATIVE_SUPPORT&&!t?atob(e):function(e){const t=[];let n=0,r=0;for(;n<e.length;){const i=e[n++];if(i<128)t[r++]=String.fromCharCode(i);else if(i>191&&i<224){const o=e[n++];t[r++]=String.fromCharCode((31&i)<<6|63&o)}else if(i>239&&i<365){const o=((7&i)<<18|(63&e[n++])<<12|(63&e[n++])<<6|63&e[n++])-65536;t[r++]=String.fromCharCode(55296+(o>>10)),t[r++]=String.fromCharCode(56320+(1023&o))}else{const o=e[n++],s=e[n++];t[r++]=String.fromCharCode((15&i)<<12|(63&o)<<6|63&s)}}return t.join("")}(this.decodeStringToByteArray(e,t))},decodeStringToByteArray(e,t){this.init_();const n=t?this.charToByteMapWebSafe_:this.charToByteMap_,r=[];for(let t=0;t<e.length;){const i=n[e.charAt(t++)],o=t<e.length?n[e.charAt(t)]:0;++t;const s=t<e.length?n[e.charAt(t)]:64;++t;const a=t<e.length?n[e.charAt(t)]:64;if(++t,null==i||null==o||null==s||null==a)throw new DecodeBase64StringError;const l=i<<2|o>>4;if(r.push(l),64!==s){const e=o<<4&240|s>>2;if(r.push(e),64!==a){const e=s<<6&192|a;r.push(e)}}}return r},init_(){if(!this.byteToCharMap_){this.byteToCharMap_={},this.charToByteMap_={},this.byteToCharMapWebSafe_={},this.charToByteMapWebSafe_={};for(let e=0;e<this.ENCODED_VALS.length;e++)this.byteToCharMap_[e]=this.ENCODED_VALS.charAt(e),this.charToByteMap_[this.byteToCharMap_[e]]=e,this.byteToCharMapWebSafe_[e]=this.ENCODED_VALS_WEBSAFE.charAt(e),this.charToByteMapWebSafe_[this.byteToCharMapWebSafe_[e]]=e,e>=this.ENCODED_VALS_BASE.length&&(this.charToByteMap_[this.ENCODED_VALS_WEBSAFE.charAt(e)]=e,this.charToByteMapWebSafe_[this.ENCODED_VALS.charAt(e)]=e)}}};class DecodeBase64StringError extends Error{constructor(){super(...arguments),this.name="DecodeBase64StringError"}}const base64Encode=function(e){const t=stringToByteArray$1(e);return a.encodeByteArray(t,!0)},base64urlEncodeWithoutPadding=function(e){return base64Encode(e).replace(/\./g,"")},base64Decode=function(e){try{return a.decodeString(e,!0)}catch(e){console.error("base64Decode failed: ",e)}return null};function deepCopy(e){return deepExtend(void 0,e)}function deepExtend(e,t){if(!(t instanceof Object))return t;switch(t.constructor){case Date:return new Date(t.getTime());case Object:void 0===e&&(e={});break;case Array:e=[];break;default:return t}for(const n in t)t.hasOwnProperty(n)&&"__proto__"!==n&&(e[n]=deepExtend(e[n],t[n]));return e}const getDefaultsFromGlobal=()=>function getGlobal(){if("undefined"!=typeof self)return self;if("undefined"!=typeof window)return window;if("undefined"!=typeof global)return global;throw new Error("Unable to locate global object.")}().__FIREBASE_DEFAULTS__,getDefaults=()=>{try{return getDefaultsFromGlobal()||(()=>{if("undefined"==typeof process||void 0===process.env)return;const e=process.env.__FIREBASE_DEFAULTS__;return e?JSON.parse(e):void 0})()||(()=>{if("undefined"==typeof document)return;let e;try{e=document.cookie.match(/__FIREBASE_DEFAULTS__=([^;]+)/)}catch(e){return}const t=e&&base64Decode(e[1]);return t&&JSON.parse(t)})()}catch(e){return void console.info(`Unable to get __FIREBASE_DEFAULTS__ due to: ${e}`)}},getDefaultEmulatorHostnameAndPort=e=>{const t=(e=>{var t,n;return null===(n=null===(t=getDefaults())||void 0===t?void 0:t.emulatorHosts)||void 0===n?void 0:n[e]})(e);if(!t)return;const n=t.lastIndexOf(":");if(n<=0||n+1===t.length)throw new Error(`Invalid host ${t} with no separate hostname and port!`);const r=parseInt(t.substring(n+1),10);return"["===t[0]?[t.substring(1,n-1),r]:[t.substring(0,n),r]};class Deferred{constructor(){this.reject=()=>{},this.resolve=()=>{},this.promise=new Promise(((e,t)=>{this.resolve=e,this.reject=t}))}wrapCallback(e){return(t,n)=>{t?this.reject(t):this.resolve(n),"function"==typeof e&&(this.promise.catch((()=>{})),1===e.length?e(t):e(t,n))}}}function isCloudWorkstation(e){return e.endsWith(".cloudworkstations.dev")}const l={};let h=!1;function updateEmulatorBanner(e,t){if("undefined"==typeof window||"undefined"==typeof document||!isCloudWorkstation(window.location.host)||l[e]===t||l[e]||h)return;function prefixedId(e){return`__firebase__banner__${e}`}l[e]=t;const n="__firebase__banner",r=function getEmulatorSummary(){const e={prod:[],emulator:[]};for(const t of Object.keys(l))l[t]?e.emulator.push(t):e.prod.push(t);return e}().prod.length>0;function setupCloseBtn(){const e=document.createElement("span");return e.style.cursor="pointer",e.style.marginLeft="16px",e.style.fontSize="24px",e.innerHTML=" &times;",e.onclick=()=>{h=!0,function tearDown(){const e=document.getElementById(n);e&&e.remove()}()},e}function setupDom(){const e=function getOrCreateEl(e){let t=document.getElementById(e),n=!1;return t||(t=document.createElement("div"),t.setAttribute("id",e),n=!0),{created:n,element:t}}(n),t=prefixedId("text"),i=document.getElementById(t)||document.createElement("span"),o=prefixedId("learnmore"),s=document.getElementById(o)||document.createElement("a"),a=prefixedId("preprendIcon"),l=document.getElementById(a)||document.createElementNS("http://www.w3.org/2000/svg","svg");if(e.created){const t=e.element;!function 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fill="white"/>\n</clipPath>\n</defs>',i.innerText="Preview backend running in this workspace."),i.setAttribute("id",t)}"loading"===document.readyState?window.addEventListener("DOMContentLoaded",setupDom):setupDom()}function isMobileCordova(){return"undefined"!=typeof window&&!!(window.cordova||window.phonegap||window.PhoneGap)&&/ios|iphone|ipod|ipad|android|blackberry|iemobile/i.test(function getUA(){return"undefined"!=typeof navigator&&"string"==typeof navigator.userAgent?navigator.userAgent:""}())}function isNodeSdk(){return!0===o}function jsonEval(e){return JSON.parse(e)}function stringify(e){return JSON.stringify(e)}const decode=function(e){let t={},n={},r={},i="";try{const o=e.split(".");t=jsonEval(base64Decode(o[0])||""),n=jsonEval(base64Decode(o[1])||""),i=o[2],r=n.d||{},delete n.d}catch(e){}return{header:t,claims:n,data:r,signature:i}};function contains(e,t){return Object.prototype.hasOwnProperty.call(e,t)}function safeGet(e,t){return Object.prototype.hasOwnProperty.call(e,t)?e[t]:void 0}function isEmpty(e){for(const t in e)if(Object.prototype.hasOwnProperty.call(e,t))return!1;return!0}function map(e,t,n){const r={};for(const i in e)Object.prototype.hasOwnProperty.call(e,i)&&(r[i]=t.call(n,e[i],i,e));return r}function deepEqual(e,t){if(e===t)return!0;const n=Object.keys(e),r=Object.keys(t);for(const i of n){if(!r.includes(i))return!1;const n=e[i],o=t[i];if(isObject(n)&&isObject(o)){if(!deepEqual(n,o))return!1}else if(n!==o)return!1}for(const e of r)if(!n.includes(e))return!1;return!0}function isObject(e){return null!==e&&"object"==typeof e}class Sha1{constructor(){this.chain_=[],this.buf_=[],this.W_=[],this.pad_=[],this.inbuf_=0,this.total_=0,this.blockSize=64,this.pad_[0]=128;for(let e=1;e<this.blockSize;++e)this.pad_[e]=0;this.reset()}reset(){this.chain_[0]=1732584193,this.chain_[1]=4023233417,this.chain_[2]=2562383102,this.chain_[3]=271733878,this.chain_[4]=3285377520,this.inbuf_=0,this.total_=0}compress_(e,t){t||(t=0);const n=this.W_;if("string"==typeof e)for(let r=0;r<16;r++)n[r]=e.charCodeAt(t)<<24|e.charCodeAt(t+1)<<16|e.charCodeAt(t+2)<<8|e.charCodeAt(t+3),t+=4;else for(let r=0;r<16;r++)n[r]=e[t]<<24|e[t+1]<<16|e[t+2]<<8|e[t+3],t+=4;for(let e=16;e<80;e++){const t=n[e-3]^n[e-8]^n[e-14]^n[e-16];n[e]=4294967295&(t<<1|t>>>31)}let r,i,o=this.chain_[0],s=this.chain_[1],a=this.chain_[2],l=this.chain_[3],h=this.chain_[4];for(let e=0;e<80;e++){e<40?e<20?(r=l^s&(a^l),i=1518500249):(r=s^a^l,i=1859775393):e<60?(r=s&a|l&(s|a),i=2400959708):(r=s^a^l,i=3395469782);const t=(o<<5|o>>>27)+r+h+i+n[e]&4294967295;h=l,l=a,a=4294967295&(s<<30|s>>>2),s=o,o=t}this.chain_[0]=this.chain_[0]+o&4294967295,this.chain_[1]=this.chain_[1]+s&4294967295,this.chain_[2]=this.chain_[2]+a&4294967295,this.chain_[3]=this.chain_[3]+l&4294967295,this.chain_[4]=this.chain_[4]+h&4294967295}update(e,t){if(null==e)return;void 0===t&&(t=e.length);const n=t-this.blockSize;let r=0;const i=this.buf_;let o=this.inbuf_;for(;r<t;){if(0===o)for(;r<=n;)this.compress_(e,r),r+=this.blockSize;if("string"==typeof e){for(;r<t;)if(i[o]=e.charCodeAt(r),++o,++r,o===this.blockSize){this.compress_(i),o=0;break}}else for(;r<t;)if(i[o]=e[r],++o,++r,o===this.blockSize){this.compress_(i),o=0;break}}this.inbuf_=o,this.total_+=t}digest(){const e=[];let t=8*this.total_;this.inbuf_<56?this.update(this.pad_,56-this.inbuf_):this.update(this.pad_,this.blockSize-(this.inbuf_-56));for(let e=this.blockSize-1;e>=56;e--)this.buf_[e]=255&t,t/=256;this.compress_(this.buf_);let n=0;for(let t=0;t<5;t++)for(let r=24;r>=0;r-=8)e[n]=this.chain_[t]>>r&255,++n;return e}}function errorPrefix(e,t){return`${e} failed: ${t} argument `}const stringLength=function(e){let t=0;for(let n=0;n<e.length;n++){const r=e.charCodeAt(n);r<128?t++:r<2048?t+=2:r>=55296&&r<=56319?(t+=4,n++):t+=3}return t};function getModularInstance(e){return e&&e._delegate?e._delegate:e}class Component{constructor(e,t,n){this.name=e,this.instanceFactory=t,this.type=n,this.multipleInstances=!1,this.serviceProps={},this.instantiationMode="LAZY",this.onInstanceCreated=null}setInstantiationMode(e){return this.instantiationMode=e,this}setMultipleInstances(e){return this.multipleInstances=e,this}setServiceProps(e){return this.serviceProps=e,this}setInstanceCreatedCallback(e){return this.onInstanceCreated=e,this}}const c="[DEFAULT]";class Provider{constructor(e,t){this.name=e,this.container=t,this.component=null,this.instances=new Map,this.instancesDeferred=new Map,this.instancesOptions=new Map,this.onInitCallbacks=new Map}get(e){const t=this.normalizeInstanceIdentifier(e);if(!this.instancesDeferred.has(t)){const e=new Deferred;if(this.instancesDeferred.set(t,e),this.isInitialized(t)||this.shouldAutoInitialize())try{const n=this.getOrInitializeService({instanceIdentifier:t});n&&e.resolve(n)}catch(e){}}return this.instancesDeferred.get(t).promise}getImmediate(e){var t;const n=this.normalizeInstanceIdentifier(null==e?void 0:e.identifier),r=null!==(t=null==e?void 0:e.optional)&&void 0!==t&&t;if(!this.isInitialized(n)&&!this.shouldAutoInitialize()){if(r)return null;throw Error(`Service ${this.name} is not available`)}try{return this.getOrInitializeService({instanceIdentifier:n})}catch(e){if(r)return null;throw e}}getComponent(){return this.component}setComponent(e){if(e.name!==this.name)throw Error(`Mismatching Component ${e.name} for Provider ${this.name}.`);if(this.component)throw Error(`Component for ${this.name} has already been provided`);if(this.component=e,this.shouldAutoInitialize()){if(function isComponentEager(e){return"EAGER"===e.instantiationMode}(e))try{this.getOrInitializeService({instanceIdentifier:c})}catch(e){}for(const[e,t]of this.instancesDeferred.entries()){const n=this.normalizeInstanceIdentifier(e);try{const e=this.getOrInitializeService({instanceIdentifier:n});t.resolve(e)}catch(e){}}}}clearInstance(e=c){this.instancesDeferred.delete(e),this.instancesOptions.delete(e),this.instances.delete(e)}async delete(){const e=Array.from(this.instances.values());await Promise.all([...e.filter((e=>"INTERNAL"in e)).map((e=>e.INTERNAL.delete())),...e.filter((e=>"_delete"in e)).map((e=>e._delete()))])}isComponentSet(){return null!=this.component}isInitialized(e=c){return this.instances.has(e)}getOptions(e=c){return this.instancesOptions.get(e)||{}}initialize(e={}){const{options:t={}}=e,n=this.normalizeInstanceIdentifier(e.instanceIdentifier);if(this.isInitialized(n))throw Error(`${this.name}(${n}) has already been initialized`);if(!this.isComponentSet())throw Error(`Component ${this.name} has not been registered yet`);const r=this.getOrInitializeService({instanceIdentifier:n,options:t});for(const[e,t]of this.instancesDeferred.entries()){n===this.normalizeInstanceIdentifier(e)&&t.resolve(r)}return r}onInit(e,t){var n;const r=this.normalizeInstanceIdentifier(t),i=null!==(n=this.onInitCallbacks.get(r))&&void 0!==n?n:new Set;i.add(e),this.onInitCallbacks.set(r,i);const o=this.instances.get(r);return o&&e(o,r),()=>{i.delete(e)}}invokeOnInitCallbacks(e,t){const n=this.onInitCallbacks.get(t);if(n)for(const r of n)try{r(e,t)}catch(e){}}getOrInitializeService({instanceIdentifier:e,options:t={}}){let n=this.instances.get(e);if(!n&&this.component&&(n=this.component.instanceFactory(this.container,{instanceIdentifier:(r=e,r===c?void 0:r),options:t}),this.instances.set(e,n),this.instancesOptions.set(e,t),this.invokeOnInitCallbacks(n,e),this.component.onInstanceCreated))try{this.component.onInstanceCreated(this.container,e,n)}catch(e){}var r;return n||null}normalizeInstanceIdentifier(e=c){return this.component?this.component.multipleInstances?e:c:e}shouldAutoInitialize(){return!!this.component&&"EXPLICIT"!==this.component.instantiationMode}}class ComponentContainer{constructor(e){this.name=e,this.providers=new Map}addComponent(e){const t=this.getProvider(e.name);if(t.isComponentSet())throw new Error(`Component ${e.name} has already been registered with ${this.name}`);t.setComponent(e)}addOrOverwriteComponent(e){this.getProvider(e.name).isComponentSet()&&this.providers.delete(e.name),this.addComponent(e)}getProvider(e){if(this.providers.has(e))return this.providers.get(e);const t=new Provider(e,this);return this.providers.set(e,t),t}getProviders(){return Array.from(this.providers.values())}}var d;!function(e){e[e.DEBUG=0]="DEBUG",e[e.VERBOSE=1]="VERBOSE",e[e.INFO=2]="INFO",e[e.WARN=3]="WARN",e[e.ERROR=4]="ERROR",e[e.SILENT=5]="SILENT"}(d||(d={}));const u={debug:d.DEBUG,verbose:d.VERBOSE,info:d.INFO,warn:d.WARN,error:d.ERROR,silent:d.SILENT},p=d.INFO,_={[d.DEBUG]:"log",[d.VERBOSE]:"log",[d.INFO]:"info",[d.WARN]:"warn",[d.ERROR]:"error"},defaultLogHandler=(e,t,...n)=>{if(t<e.logLevel)return;const r=(new Date).toISOString(),i=_[t];if(!i)throw new Error(`Attempted to log a message with an invalid logType (value: ${t})`);console[i](`[${r}]  ${e.name}:`,...n)};const m="@firebase/database",f="1.0.19";let y="";function setSDKVersion(e){y=e}class DOMStorageWrapper{constructor(e){this.domStorage_=e,this.prefix_="firebase:"}set(e,t){null==t?this.domStorage_.removeItem(this.prefixedName_(e)):this.domStorage_.setItem(this.prefixedName_(e),stringify(t))}get(e){const t=this.domStorage_.getItem(this.prefixedName_(e));return null==t?null:jsonEval(t)}remove(e){this.domStorage_.removeItem(this.prefixedName_(e))}prefixedName_(e){return this.prefix_+e}toString(){return this.domStorage_.toString()}}class 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t=buildLogMessage_.apply(null,e);T(t)}},logWrapper=function(e){return function(...t){log(e,...t)}},error=function(...e){const t="FIREBASE INTERNAL ERROR: "+buildLogMessage_(...e);v.error(t)},fatal=function(...e){const t=`FIREBASE FATAL ERROR: ${buildLogMessage_(...e)}`;throw v.error(t),new Error(t)},warn=function(...e){const t="FIREBASE WARNING: "+buildLogMessage_(...e);v.warn(t)},isInvalidJSONNumber=function(e){return"number"==typeof e&&(e!=e||e===Number.POSITIVE_INFINITY||e===Number.NEGATIVE_INFINITY)},S="[MIN_NAME]",P="[MAX_NAME]",nameCompare=function(e,t){if(e===t)return 0;if(e===S||t===P)return-1;if(t===S||e===P)return 1;{const n=tryParseInt(e),r=tryParseInt(t);return null!==n?null!==r?n-r==0?e.length-t.length:n-r:-1:null!==r?1:e<t?-1:1}},stringCompare=function(e,t){return e===t?0:e<t?-1:1},requireKey=function(e,t){if(t&&e in t)return t[e];throw new Error("Missing required key ("+e+") in object: "+stringify(t))},ObjectToUniqueKey=function(e){if("object"!=typeof e||null===e)return stringify(e);const t=[];for(const n in e)t.push(n);t.sort();let n="{";for(let r=0;r<t.length;r++)0!==r&&(n+=","),n+=stringify(t[r]),n+=":",n+=ObjectToUniqueKey(e[t[r]]);return n+="}",n},splitStringBySize=function(e,t){const n=e.length;if(n<=t)return[e];const r=[];for(let i=0;i<n;i+=t)i+t>n?r.push(e.substring(i,n)):r.push(e.substring(i,i+t));return r};function each(e,t){for(const n in e)e.hasOwnProperty(n)&&t(n,e[n])}const doubleToIEEE754String=function(e){assert(!isInvalidJSONNumber(e),"Invalid JSON number");const t=1023;let n,r,i,o,s;0===e?(r=0,i=0,n=1/e==-1/0?1:0):(n=e<0,(e=Math.abs(e))>=Math.pow(2,-1022)?(o=Math.min(Math.floor(Math.log(e)/Math.LN2),t),r=o+t,i=Math.round(e*Math.pow(2,52-o)-Math.pow(2,52))):(r=0,i=Math.round(e/Math.pow(2,-1074))));const a=[];for(s=52;s;s-=1)a.push(i%2?1:0),i=Math.floor(i/2);for(s=11;s;s-=1)a.push(r%2?1:0),r=Math.floor(r/2);a.push(n?1:0),a.reverse();const l=a.join("");let h="";for(s=0;s<64;s+=8){let e=parseInt(l.substr(s,8),2).toString(16);1===e.length&&(e="0"+e),h+=e}return h.toLowerCase()};const I=new RegExp("^-?(0*)\\d{1,10}$"),tryParseInt=function(e){if(I.test(e)){const t=Number(e);if(t>=-2147483648&&t<=2147483647)return t}return null},exceptionGuard=function(e){try{e()}catch(e){setTimeout((()=>{const t=e.stack||"";throw warn("Exception was thrown by user callback.",t),e}),Math.floor(0))}},setTimeoutNonBlocking=function(e,t){const n=setTimeout(e,t);return"number"==typeof n&&"undefined"!=typeof Deno&&Deno.unrefTimer?Deno.unrefTimer(n):"object"==typeof n&&n.unref&&n.unref(),n};class AppCheckTokenProvider{constructor(e,t){this.appCheckProvider=t,this.appName=e.name,r(e)&&e.settings.appCheckToken&&(this.serverAppAppCheckToken=e.settings.appCheckToken),this.appCheck=null==t?void 0:t.getImmediate({optional:!0}),this.appCheck||null==t||t.get().then((e=>this.appCheck=e))}getToken(e){if(this.serverAppAppCheckToken){if(e)throw new Error("Attempted reuse of `FirebaseServerApp.appCheckToken` after previous usage failed.");return Promise.resolve({token:this.serverAppAppCheckToken})}return this.appCheck?this.appCheck.getToken(e):new Promise(((t,n)=>{setTimeout((()=>{this.appCheck?this.getToken(e).then(t,n):t(null)}),0)}))}addTokenChangeListener(e){var t;null===(t=this.appCheckProvider)||void 0===t||t.get().then((t=>t.addTokenListener(e)))}notifyForInvalidToken(){warn(`Provided AppCheck credentials for the app named "${this.appName}" are invalid. This usually indicates your app was not initialized correctly.`)}}class FirebaseAuthTokenProvider{constructor(e,t,n){this.appName_=e,this.firebaseOptions_=t,this.authProvider_=n,this.auth_=null,this.auth_=n.getImmediate({optional:!0}),this.auth_||n.onInit((e=>this.auth_=e))}getToken(e){return this.auth_?this.auth_.getToken(e).catch((e=>e&&"auth/token-not-initialized"===e.code?(log("Got auth/token-not-initialized error.  Treating as null token."),null):Promise.reject(e))):new Promise(((t,n)=>{setTimeout((()=>{this.auth_?this.getToken(e).then(t,n):t(null)}),0)}))}addTokenChangeListener(e){this.auth_?this.auth_.addAuthTokenListener(e):this.authProvider_.get().then((t=>t.addAuthTokenListener(e)))}removeTokenChangeListener(e){this.authProvider_.get().then((t=>t.removeAuthTokenListener(e)))}notifyForInvalidToken(){let e='Provided authentication credentials for the app named "'+this.appName_+'" are invalid. This usually indicates your app was not initialized correctly. ';"credential"in this.firebaseOptions_?e+='Make sure the "credential" property provided to initializeApp() is authorized to access the specified "databaseURL" and is from the correct project.':"serviceAccount"in this.firebaseOptions_?e+='Make sure the "serviceAccount" property provided to initializeApp() is authorized to access the specified "databaseURL" and is from the correct project.':e+='Make sure the "apiKey" and "databaseURL" properties provided to initializeApp() match the values provided for your app at https://console.firebase.google.com/.',warn(e)}}class EmulatorTokenProvider{constructor(e){this.accessToken=e}getToken(e){return Promise.resolve({accessToken:this.accessToken})}addTokenChangeListener(e){e(this.accessToken)}removeTokenChangeListener(e){}notifyForInvalidToken(){}}EmulatorTokenProvider.OWNER="owner";const b=/(console\.firebase|firebase-console-\w+\.corp|firebase\.corp)\.google\.com/,N="ac",k="websocket",R="long_polling";class RepoInfo{constructor(e,t,n,r,i=!1,o="",s=!1,a=!1,l=null){this.secure=t,this.namespace=n,this.webSocketOnly=r,this.nodeAdmin=i,this.persistenceKey=o,this.includeNamespaceInQueryParams=s,this.isUsingEmulator=a,this.emulatorOptions=l,this._host=e.toLowerCase(),this._domain=this._host.substr(this._host.indexOf(".")+1),this.internalHost=g.get("host:"+e)||this._host}isCacheableHost(){return"s-"===this.internalHost.substr(0,2)}isCustomHost(){return"firebaseio.com"!==this._domain&&"firebaseio-demo.com"!==this._domain}get host(){return this._host}set host(e){e!==this.internalHost&&(this.internalHost=e,this.isCacheableHost()&&g.set("host:"+this._host,this.internalHost))}toString(){let e=this.toURLString();return this.persistenceKey&&(e+="<"+this.persistenceKey+">"),e}toURLString(){const e=this.secure?"https://":"http://",t=this.includeNamespaceInQueryParams?`?ns=${this.namespace}`:"";return`${e}${this.host}/${t}`}}function repoInfoConnectionURL(e,t,n){let r;if(assert("string"==typeof t,"typeof type must == string"),assert("object"==typeof n,"typeof params must == object"),t===k)r=(e.secure?"wss://":"ws://")+e.internalHost+"/.ws?";else{if(t!==R)throw new Error("Unknown connection type: "+t);r=(e.secure?"https://":"http://")+e.internalHost+"/.lp?"}(function repoInfoNeedsQueryParam(e){return e.host!==e.internalHost||e.isCustomHost()||e.includeNamespaceInQueryParams})(e)&&(n.ns=e.namespace);const i=[];return each(n,((e,t)=>{i.push(e+"="+t)})),r+i.join("&")}class StatsCollection{constructor(){this.counters_={}}incrementCounter(e,t=1){contains(this.counters_,e)||(this.counters_[e]=0),this.counters_[e]+=t}get(){return deepCopy(this.counters_)}}const A={},x={};function statsManagerGetCollection(e){const t=e.toString();return A[t]||(A[t]=new StatsCollection),A[t]}class PacketReceiver{constructor(e){this.onMessage_=e,this.pendingResponses=[],this.currentResponseNum=0,this.closeAfterResponse=-1,this.onClose=null}closeAfter(e,t){this.closeAfterResponse=e,this.onClose=t,this.closeAfterResponse<this.currentResponseNum&&(this.onClose(),this.onClose=null)}handleResponse(e,t){for(this.pendingResponses[e]=t;this.pendingResponses[this.currentResponseNum];){const e=this.pendingResponses[this.currentResponseNum];delete this.pendingResponses[this.currentResponseNum];for(let t=0;t<e.length;++t)e[t]&&exceptionGuard((()=>{this.onMessage_(e[t])}));if(this.currentResponseNum===this.closeAfterResponse){this.onClose&&(this.onClose(),this.onClose=null);break}this.currentResponseNum++}}}const O="start";class BrowserPollConnection{constructor(e,t,n,r,i,o,s){this.connId=e,this.repoInfo=t,this.applicationId=n,this.appCheckToken=r,this.authToken=i,this.transportSessionId=o,this.lastSessionId=s,this.bytesSent=0,this.bytesReceived=0,this.everConnected_=!1,this.log_=logWrapper(e),this.stats_=statsManagerGetCollection(t),this.urlFn=e=>(this.appCheckToken&&(e[N]=this.appCheckToken),repoInfoConnectionURL(t,R,e))}open(e,t){this.curSegmentNum=0,this.onDisconnect_=t,this.myPacketOrderer=new PacketReceiver(e),this.isClosed_=!1,this.connectTimeoutTimer_=setTimeout((()=>{this.log_("Timed out trying to connect."),this.onClosed_(),this.connectTimeoutTimer_=null}),Math.floor(3e4)),function(e){if("complete"===document.readyState)e();else{let t=!1;const wrappedFn=function(){document.body?t||(t=!0,e()):setTimeout(wrappedFn,Math.floor(10))};document.addEventListener?(document.addEventListener("DOMContentLoaded",wrappedFn,!1),window.addEventListener("load",wrappedFn,!1)):document.attachEvent&&(document.attachEvent("onreadystatechange",(()=>{"complete"===document.readyState&&wrappedFn()})),window.attachEvent("onload",wrappedFn))}}((()=>{if(this.isClosed_)return;this.scriptTagHolder=new FirebaseIFrameScriptHolder(((...e)=>{const[t,n,r,i,o]=e;if(this.incrementIncomingBytes_(e),this.scriptTagHolder)if(this.connectTimeoutTimer_&&(clearTimeout(this.connectTimeoutTimer_),this.connectTimeoutTimer_=null),this.everConnected_=!0,t===O)this.id=n,this.password=r;else{if("close"!==t)throw new Error("Unrecognized command received: "+t);n?(this.scriptTagHolder.sendNewPolls=!1,this.myPacketOrderer.closeAfter(n,(()=>{this.onClosed_()}))):this.onClosed_()}}),((...e)=>{const[t,n]=e;this.incrementIncomingBytes_(e),this.myPacketOrderer.handleResponse(t,n)}),(()=>{this.onClosed_()}),this.urlFn);const e={};e[O]="t",e.ser=Math.floor(1e8*Math.random()),this.scriptTagHolder.uniqueCallbackIdentifier&&(e.cb=this.scriptTagHolder.uniqueCallbackIdentifier),e.v="5",this.transportSessionId&&(e.s=this.transportSessionId),this.lastSessionId&&(e.ls=this.lastSessionId),this.applicationId&&(e.p=this.applicationId),this.appCheckToken&&(e[N]=this.appCheckToken),"undefined"!=typeof location&&location.hostname&&b.test(location.hostname)&&(e.r="f");const t=this.urlFn(e);this.log_("Connecting via long-poll to "+t),this.scriptTagHolder.addTag(t,(()=>{}))}))}start(){this.scriptTagHolder.startLongPoll(this.id,this.password),this.addDisconnectPingFrame(this.id,this.password)}static forceAllow(){BrowserPollConnection.forceAllow_=!0}static forceDisallow(){BrowserPollConnection.forceDisallow_=!0}static isAvailable(){return!!BrowserPollConnection.forceAllow_||!(BrowserPollConnection.forceDisallow_||"undefined"==typeof document||null==document.createElement||"object"==typeof window&&window.chrome&&window.chrome.extension&&!/^chrome/.test(window.location.href)||"object"==typeof Windows&&"object"==typeof Windows.UI)}markConnectionHealthy(){}shutdown_(){this.isClosed_=!0,this.scriptTagHolder&&(this.scriptTagHolder.close(),this.scriptTagHolder=null),this.myDisconnFrame&&(document.body.removeChild(this.myDisconnFrame),this.myDisconnFrame=null),this.connectTimeoutTimer_&&(clearTimeout(this.connectTimeoutTimer_),this.connectTimeoutTimer_=null)}onClosed_(){this.isClosed_||(this.log_("Longpoll is closing itself"),this.shutdown_(),this.onDisconnect_&&(this.onDisconnect_(this.everConnected_),this.onDisconnect_=null))}close(){this.isClosed_||(this.log_("Longpoll is being closed."),this.shutdown_())}send(e){const t=stringify(e);this.bytesSent+=t.length,this.stats_.incrementCounter("bytes_sent",t.length);const n=base64Encode(t),r=splitStringBySize(n,1840);for(let e=0;e<r.length;e++)this.scriptTagHolder.enqueueSegment(this.curSegmentNum,r.length,r[e]),this.curSegmentNum++}addDisconnectPingFrame(e,t){this.myDisconnFrame=document.createElement("iframe");const n={dframe:"t"};n.id=e,n.pw=t,this.myDisconnFrame.src=this.urlFn(n),this.myDisconnFrame.style.display="none",document.body.appendChild(this.myDisconnFrame)}incrementIncomingBytes_(e){const t=stringify(e).length;this.bytesReceived+=t,this.stats_.incrementCounter("bytes_received",t)}}class FirebaseIFrameScriptHolder{constructor(e,t,n,r){this.onDisconnect=n,this.urlFn=r,this.outstandingRequests=new Set,this.pendingSegs=[],this.currentSerial=Math.floor(1e8*Math.random()),this.sendNewPolls=!0;{this.uniqueCallbackIdentifier=w(),window["pLPCommand"+this.uniqueCallbackIdentifier]=e,window["pRTLPCB"+this.uniqueCallbackIdentifier]=t,this.myIFrame=FirebaseIFrameScriptHolder.createIFrame_();let n="";if(this.myIFrame.src&&"javascript:"===this.myIFrame.src.substr(0,11)){n='<script>document.domain="'+document.domain+'";<\/script>'}const r="<html><body>"+n+"</body></html>";try{this.myIFrame.doc.open(),this.myIFrame.doc.write(r),this.myIFrame.doc.close()}catch(e){log("frame writing exception"),e.stack&&log(e.stack),log(e)}}}static createIFrame_(){const e=document.createElement("iframe");if(e.style.display="none",!document.body)throw"Document body has not initialized. Wait to initialize Firebase until after the document is ready.";document.body.appendChild(e);try{e.contentWindow.document||log("No IE domain setting required")}catch(t){const n=document.domain;e.src="javascript:void((function(){document.open();document.domain='"+n+"';document.close();})())"}return e.contentDocument?e.doc=e.contentDocument:e.contentWindow?e.doc=e.contentWindow.document:e.document&&(e.doc=e.document),e}close(){this.alive=!1,this.myIFrame&&(this.myIFrame.doc.body.textContent="",setTimeout((()=>{null!==this.myIFrame&&(document.body.removeChild(this.myIFrame),this.myIFrame=null)}),Math.floor(0)));const e=this.onDisconnect;e&&(this.onDisconnect=null,e())}startLongPoll(e,t){for(this.myID=e,this.myPW=t,this.alive=!0;this.newRequest_(););}newRequest_(){if(this.alive&&this.sendNewPolls&&this.outstandingRequests.size<(this.pendingSegs.length>0?2:1)){this.currentSerial++;const e={};e.id=this.myID,e.pw=this.myPW,e.ser=this.currentSerial;let t=this.urlFn(e),n="",r=0;for(;this.pendingSegs.length>0;){if(!(this.pendingSegs[0].d.length+30+n.length<=1870))break;{const e=this.pendingSegs.shift();n=n+"&seg"+r+"="+e.seg+"&ts"+r+"="+e.ts+"&d"+r+"="+e.d,r++}}return t+=n,this.addLongPollTag_(t,this.currentSerial),!0}return!1}enqueueSegment(e,t,n){this.pendingSegs.push({seg:e,ts:t,d:n}),this.alive&&this.newRequest_()}addLongPollTag_(e,t){this.outstandingRequests.add(t);const doNewRequest=()=>{this.outstandingRequests.delete(t),this.newRequest_()},n=setTimeout(doNewRequest,Math.floor(25e3));this.addTag(e,(()=>{clearTimeout(n),doNewRequest()}))}addTag(e,t){setTimeout((()=>{try{if(!this.sendNewPolls)return;const n=this.myIFrame.doc.createElement("script");n.type="text/javascript",n.async=!0,n.src=e,n.onload=n.onreadystatechange=function(){const e=n.readyState;e&&"loaded"!==e&&"complete"!==e||(n.onload=n.onreadystatechange=null,n.parentNode&&n.parentNode.removeChild(n),t())},n.onerror=()=>{log("Long-poll script failed to load: "+e),this.sendNewPolls=!1,this.close()},this.myIFrame.doc.body.appendChild(n)}catch(e){}}),Math.floor(1))}}let F=null;"undefined"!=typeof MozWebSocket?F=MozWebSocket:"undefined"!=typeof WebSocket&&(F=WebSocket);class WebSocketConnection{constructor(e,t,n,r,i,o,s){this.connId=e,this.applicationId=n,this.appCheckToken=r,this.authToken=i,this.keepaliveTimer=null,this.frames=null,this.totalFrames=0,this.bytesSent=0,this.bytesReceived=0,this.log_=logWrapper(this.connId),this.stats_=statsManagerGetCollection(t),this.connURL=WebSocketConnection.connectionURL_(t,o,s,r,n),this.nodeAdmin=t.nodeAdmin}static connectionURL_(e,t,n,r,i){const o={v:"5"};return"undefined"!=typeof location&&location.hostname&&b.test(location.hostname)&&(o.r="f"),t&&(o.s=t),n&&(o.ls=n),r&&(o[N]=r),i&&(o.p=i),repoInfoConnectionURL(e,k,o)}open(e,t){this.onDisconnect=t,this.onMessage=e,this.log_("Websocket connecting to "+this.connURL),this.everConnected_=!1,g.set("previous_websocket_failure",!0);try{let e;isNodeSdk(),this.mySock=new F(this.connURL,[],e)}catch(e){this.log_("Error instantiating WebSocket.");const t=e.message||e.data;return t&&this.log_(t),void this.onClosed_()}this.mySock.onopen=()=>{this.log_("Websocket connected."),this.everConnected_=!0},this.mySock.onclose=()=>{this.log_("Websocket connection was disconnected."),this.mySock=null,this.onClosed_()},this.mySock.onmessage=e=>{this.handleIncomingFrame(e)},this.mySock.onerror=e=>{this.log_("WebSocket error.  Closing connection.");const t=e.message||e.data;t&&this.log_(t),this.onClosed_()}}start(){}static forceDisallow(){WebSocketConnection.forceDisallow_=!0}static isAvailable(){let e=!1;if("undefined"!=typeof navigator&&navigator.userAgent){const t=/Android ([0-9]{0,}\.[0-9]{0,})/,n=navigator.userAgent.match(t);n&&n.length>1&&parseFloat(n[1])<4.4&&(e=!0)}return!e&&null!==F&&!WebSocketConnection.forceDisallow_}static previouslyFailed(){return g.isInMemoryStorage||!0===g.get("previous_websocket_failure")}markConnectionHealthy(){g.remove("previous_websocket_failure")}appendFrame_(e){if(this.frames.push(e),this.frames.length===this.totalFrames){const e=this.frames.join("");this.frames=null;const t=jsonEval(e);this.onMessage(t)}}handleNewFrameCount_(e){this.totalFrames=e,this.frames=[]}extractFrameCount_(e){if(assert(null===this.frames,"We already have a frame buffer"),e.length<=6){const t=Number(e);if(!isNaN(t))return this.handleNewFrameCount_(t),null}return this.handleNewFrameCount_(1),e}handleIncomingFrame(e){if(null===this.mySock)return;const t=e.data;if(this.bytesReceived+=t.length,this.stats_.incrementCounter("bytes_received",t.length),this.resetKeepAlive(),null!==this.frames)this.appendFrame_(t);else{const e=this.extractFrameCount_(t);null!==e&&this.appendFrame_(e)}}send(e){this.resetKeepAlive();const t=stringify(e);this.bytesSent+=t.length,this.stats_.incrementCounter("bytes_sent",t.length);const n=splitStringBySize(t,16384);n.length>1&&this.sendString_(String(n.length));for(let e=0;e<n.length;e++)this.sendString_(n[e])}shutdown_(){this.isClosed_=!0,this.keepaliveTimer&&(clearInterval(this.keepaliveTimer),this.keepaliveTimer=null),this.mySock&&(this.mySock.close(),this.mySock=null)}onClosed_(){this.isClosed_||(this.log_("WebSocket is closing itself"),this.shutdown_(),this.onDisconnect&&(this.onDisconnect(this.everConnected_),this.onDisconnect=null))}close(){this.isClosed_||(this.log_("WebSocket is being closed"),this.shutdown_())}resetKeepAlive(){clearInterval(this.keepaliveTimer),this.keepaliveTimer=setInterval((()=>{this.mySock&&this.sendString_("0"),this.resetKeepAlive()}),Math.floor(45e3))}sendString_(e){try{this.mySock.send(e)}catch(e){this.log_("Exception thrown from WebSocket.send():",e.message||e.data,"Closing connection."),setTimeout(this.onClosed_.bind(this),0)}}}WebSocketConnection.responsesRequiredToBeHealthy=2,WebSocketConnection.healthyTimeout=3e4;class TransportManager{static get ALL_TRANSPORTS(){return[BrowserPollConnection,WebSocketConnection]}static get IS_TRANSPORT_INITIALIZED(){return this.globalTransportInitialized_}constructor(e){this.initTransports_(e)}initTransports_(e){const t=WebSocketConnection&&WebSocketConnection.isAvailable();let n=t&&!WebSocketConnection.previouslyFailed();if(e.webSocketOnly&&(t||warn("wss:// URL used, but browser isn't known to support websockets.  Trying anyway."),n=!0),n)this.transports_=[WebSocketConnection];else{const e=this.transports_=[];for(const t of TransportManager.ALL_TRANSPORTS)t&&t.isAvailable()&&e.push(t);TransportManager.globalTransportInitialized_=!0}}initialTransport(){if(this.transports_.length>0)return this.transports_[0];throw new Error("No transports available")}upgradeTransport(){return this.transports_.length>1?this.transports_[1]:null}}TransportManager.globalTransportInitialized_=!1;class Connection{constructor(e,t,n,r,i,o,s,a,l,h){this.id=e,this.repoInfo_=t,this.applicationId_=n,this.appCheckToken_=r,this.authToken_=i,this.onMessage_=o,this.onReady_=s,this.onDisconnect_=a,this.onKill_=l,this.lastSessionId=h,this.connectionCount=0,this.pendingDataMessages=[],this.state_=0,this.log_=logWrapper("c:"+this.id+":"),this.transportManager_=new TransportManager(t),this.log_("Connection created"),this.start_()}start_(){const e=this.transportManager_.initialTransport();this.conn_=new e(this.nextTransportId_(),this.repoInfo_,this.applicationId_,this.appCheckToken_,this.authToken_,null,this.lastSessionId),this.primaryResponsesRequired_=e.responsesRequiredToBeHealthy||0;const t=this.connReceiver_(this.conn_),n=this.disconnReceiver_(this.conn_);this.tx_=this.conn_,this.rx_=this.conn_,this.secondaryConn_=null,this.isHealthy_=!1,setTimeout((()=>{this.conn_&&this.conn_.open(t,n)}),Math.floor(0));const r=e.healthyTimeout||0;r>0&&(this.healthyTimeout_=setTimeoutNonBlocking((()=>{this.healthyTimeout_=null,this.isHealthy_||(this.conn_&&this.conn_.bytesReceived>102400?(this.log_("Connection exceeded healthy timeout but has received "+this.conn_.bytesReceived+" bytes.  Marking connection healthy."),this.isHealthy_=!0,this.conn_.markConnectionHealthy()):this.conn_&&this.conn_.bytesSent>10240?this.log_("Connection exceeded healthy timeout but has sent "+this.conn_.bytesSent+" bytes.  Leaving connection alive."):(this.log_("Closing unhealthy connection after timeout."),this.close()))}),Math.floor(r)))}nextTransportId_(){return"c:"+this.id+":"+this.connectionCount++}disconnReceiver_(e){return t=>{e===this.conn_?this.onConnectionLost_(t):e===this.secondaryConn_?(this.log_("Secondary connection lost."),this.onSecondaryConnectionLost_()):this.log_("closing an old connection")}}connReceiver_(e){return t=>{2!==this.state_&&(e===this.rx_?this.onPrimaryMessageReceived_(t):e===this.secondaryConn_?this.onSecondaryMessageReceived_(t):this.log_("message on old connection"))}}sendRequest(e){const t={t:"d",d:e};this.sendData_(t)}tryCleanupConnection(){this.tx_===this.secondaryConn_&&this.rx_===this.secondaryConn_&&(this.log_("cleaning up and promoting a connection: "+this.secondaryConn_.connId),this.conn_=this.secondaryConn_,this.secondaryConn_=null)}onSecondaryControl_(e){if("t"in e){const t=e.t;"a"===t?this.upgradeIfSecondaryHealthy_():"r"===t?(this.log_("Got a reset on secondary, closing it"),this.secondaryConn_.close(),this.tx_!==this.secondaryConn_&&this.rx_!==this.secondaryConn_||this.close()):"o"===t&&(this.log_("got pong on secondary."),this.secondaryResponsesRequired_--,this.upgradeIfSecondaryHealthy_())}}onSecondaryMessageReceived_(e){const t=requireKey("t",e),n=requireKey("d",e);if("c"===t)this.onSecondaryControl_(n);else{if("d"!==t)throw new Error("Unknown protocol layer: "+t);this.pendingDataMessages.push(n)}}upgradeIfSecondaryHealthy_(){this.secondaryResponsesRequired_<=0?(this.log_("Secondary connection is healthy."),this.isHealthy_=!0,this.secondaryConn_.markConnectionHealthy(),this.proceedWithUpgrade_()):(this.log_("sending ping on secondary."),this.secondaryConn_.send({t:"c",d:{t:"p",d:{}}}))}proceedWithUpgrade_(){this.secondaryConn_.start(),this.log_("sending client ack on secondary"),this.secondaryConn_.send({t:"c",d:{t:"a",d:{}}}),this.log_("Ending transmission on primary"),this.conn_.send({t:"c",d:{t:"n",d:{}}}),this.tx_=this.secondaryConn_,this.tryCleanupConnection()}onPrimaryMessageReceived_(e){const t=requireKey("t",e),n=requireKey("d",e);"c"===t?this.onControl_(n):"d"===t&&this.onDataMessage_(n)}onDataMessage_(e){this.onPrimaryResponse_(),this.onMessage_(e)}onPrimaryResponse_(){this.isHealthy_||(this.primaryResponsesRequired_--,this.primaryResponsesRequired_<=0&&(this.log_("Primary connection is healthy."),this.isHealthy_=!0,this.conn_.markConnectionHealthy()))}onControl_(e){const t=requireKey("t",e);if("d"in e){const n=e.d;if("h"===t){const e=Object.assign({},n);this.repoInfo_.isUsingEmulator&&(e.h=this.repoInfo_.host),this.onHandshake_(e)}else if("n"===t){this.log_("recvd end transmission on primary"),this.rx_=this.secondaryConn_;for(let e=0;e<this.pendingDataMessages.length;++e)this.onDataMessage_(this.pendingDataMessages[e]);this.pendingDataMessages=[],this.tryCleanupConnection()}else"s"===t?this.onConnectionShutdown_(n):"r"===t?this.onReset_(n):"e"===t?error("Server Error: "+n):"o"===t?(this.log_("got pong on primary."),this.onPrimaryResponse_(),this.sendPingOnPrimaryIfNecessary_()):error("Unknown control packet command: "+t)}}onHandshake_(e){const t=e.ts,n=e.v,r=e.h;this.sessionId=e.s,this.repoInfo_.host=r,0===this.state_&&(this.conn_.start(),this.onConnectionEstablished_(this.conn_,t),"5"!==n&&warn("Protocol version mismatch detected"),this.tryStartUpgrade_())}tryStartUpgrade_(){const e=this.transportManager_.upgradeTransport();e&&this.startUpgrade_(e)}startUpgrade_(e){this.secondaryConn_=new e(this.nextTransportId_(),this.repoInfo_,this.applicationId_,this.appCheckToken_,this.authToken_,this.sessionId),this.secondaryResponsesRequired_=e.responsesRequiredToBeHealthy||0;const t=this.connReceiver_(this.secondaryConn_),n=this.disconnReceiver_(this.secondaryConn_);this.secondaryConn_.open(t,n),setTimeoutNonBlocking((()=>{this.secondaryConn_&&(this.log_("Timed out trying to upgrade."),this.secondaryConn_.close())}),Math.floor(6e4))}onReset_(e){this.log_("Reset packet received.  New host: "+e),this.repoInfo_.host=e,1===this.state_?this.close():(this.closeConnections_(),this.start_())}onConnectionEstablished_(e,t){this.log_("Realtime connection established."),this.conn_=e,this.state_=1,this.onReady_&&(this.onReady_(t,this.sessionId),this.onReady_=null),0===this.primaryResponsesRequired_?(this.log_("Primary connection is healthy."),this.isHealthy_=!0):setTimeoutNonBlocking((()=>{this.sendPingOnPrimaryIfNecessary_()}),Math.floor(5e3))}sendPingOnPrimaryIfNecessary_(){this.isHealthy_||1!==this.state_||(this.log_("sending ping on primary."),this.sendData_({t:"c",d:{t:"p",d:{}}}))}onSecondaryConnectionLost_(){const e=this.secondaryConn_;this.secondaryConn_=null,this.tx_!==e&&this.rx_!==e||this.close()}onConnectionLost_(e){this.conn_=null,e||0!==this.state_?1===this.state_&&this.log_("Realtime connection lost."):(this.log_("Realtime connection failed."),this.repoInfo_.isCacheableHost()&&(g.remove("host:"+this.repoInfo_.host),this.repoInfo_.internalHost=this.repoInfo_.host)),this.close()}onConnectionShutdown_(e){this.log_("Connection shutdown command received. Shutting down..."),this.onKill_&&(this.onKill_(e),this.onKill_=null),this.onDisconnect_=null,this.close()}sendData_(e){if(1!==this.state_)throw"Connection is not connected";this.tx_.send(e)}close(){2!==this.state_&&(this.log_("Closing realtime connection."),this.state_=2,this.closeConnections_(),this.onDisconnect_&&(this.onDisconnect_(),this.onDisconnect_=null))}closeConnections_(){this.log_("Shutting down all connections"),this.conn_&&(this.conn_.close(),this.conn_=null),this.secondaryConn_&&(this.secondaryConn_.close(),this.secondaryConn_=null),this.healthyTimeout_&&(clearTimeout(this.healthyTimeout_),this.healthyTimeout_=null)}}class ServerActions{put(e,t,n,r){}merge(e,t,n,r){}refreshAuthToken(e){}refreshAppCheckToken(e){}onDisconnectPut(e,t,n){}onDisconnectMerge(e,t,n){}onDisconnectCancel(e,t){}reportStats(e){}}class EventEmitter{constructor(e){this.allowedEvents_=e,this.listeners_={},assert(Array.isArray(e)&&e.length>0,"Requires a non-empty array")}trigger(e,...t){if(Array.isArray(this.listeners_[e])){const n=[...this.listeners_[e]];for(let e=0;e<n.length;e++)n[e].callback.apply(n[e].context,t)}}on(e,t,n){this.validateEventType_(e),this.listeners_[e]=this.listeners_[e]||[],this.listeners_[e].push({callback:t,context:n});const r=this.getInitialEvent(e);r&&t.apply(n,r)}off(e,t,n){this.validateEventType_(e);const r=this.listeners_[e]||[];for(let e=0;e<r.length;e++)if(r[e].callback===t&&(!n||n===r[e].context))return void r.splice(e,1)}validateEventType_(e){assert(this.allowedEvents_.find((t=>t===e)),"Unknown event: "+e)}}class OnlineMonitor extends EventEmitter{static getInstance(){return new OnlineMonitor}constructor(){super(["online"]),this.online_=!0,"undefined"==typeof window||void 0===window.addEventListener||isMobileCordova()||(window.addEventListener("online",(()=>{this.online_||(this.online_=!0,this.trigger("online",!0))}),!1),window.addEventListener("offline",(()=>{this.online_&&(this.online_=!1,this.trigger("online",!1))}),!1))}getInitialEvent(e){return assert("online"===e,"Unknown event type: "+e),[this.on