{"version":3,"file":"firebase-performance.js","sources":["../util/src/errors.ts","../util/src/obj.ts","../util/src/compat.ts","../logger/src/logger.ts","../component/src/component.ts","../../node_modules/idb/build/wrap-idb-value.js","../../node_modules/idb/build/index.js","../installations/src/util/errors.ts","../installations/src/util/constants.ts","../installations/src/functions/common.ts","../installations/src/util/sleep.ts","../installations/src/helpers/generate-fid.ts","../installations/src/helpers/buffer-to-base64-url-safe.ts","../installations/src/util/get-key.ts","../installations/src/helpers/fid-changed.ts","../installations/src/helpers/idb-manager.ts","../installations/src/helpers/get-installation-entry.ts","../installations/src/functions/create-installation-request.ts","../installations/src/functions/generate-auth-token-request.ts","../installations/src/helpers/refresh-auth-token.ts","../installations/src/api/get-token.ts","../installations/src/helpers/extract-app-config.ts","../installations/src/functions/config.ts","../installations/src/api/get-id.ts","../installations/src/index.ts","../performance/src/utils/errors.ts","../performance/src/constants.ts","../performance/src/utils/console_logger.ts","../performance/src/services/api_service.ts","../performance/src/services/iid_service.ts","../performance/src/services/settings_service.ts","../util/src/environment.ts","../performance/src/utils/string_merger.ts","../performance/src/utils/attributes_utils.ts","../performance/src/utils/app_utils.ts","../performance/src/services/remote_config_service.ts","../performance/src/services/initialization_service.ts","../performance/src/services/transport_service.ts","../performance/src/services/perf_logger.ts","../performance/src/utils/metric_utils.ts","../performance/src/resources/trace.ts","../performance/src/resources/network_request.ts","../performance/src/services/oob_resources_service.ts","../performance/src/controllers/perf.ts","../performance/src/index.ts"],"sourcesContent":["/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview Standardized Firebase Error.\n *\n * Usage:\n *\n *   // Typescript string literals for type-safe codes\n *   type Err =\n *     'unknown' |\n *     'object-not-found'\n *     ;\n *\n *   // Closure enum for type-safe error codes\n *   // at-enum {string}\n *   var Err = {\n *     UNKNOWN: 'unknown',\n *     OBJECT_NOT_FOUND: 'object-not-found',\n *   }\n *\n *   let errors: Map<Err, string> = {\n *     'generic-error': \"Unknown error\",\n *     'file-not-found': \"Could not find file: {$file}\",\n *   };\n *\n *   // Type-safe function - must pass a valid error code as param.\n *   let error = new ErrorFactory<Err>('service', 'Service', errors);\n *\n *   ...\n *   throw error.create(Err.GENERIC);\n *   ...\n *   throw error.create(Err.FILE_NOT_FOUND, {'file': fileName});\n *   ...\n *   // Service: Could not file file: foo.txt (service/file-not-found).\n *\n *   catch (e) {\n *     assert(e.message === \"Could not find file: foo.txt.\");\n *     if ((e as FirebaseError)?.code === 'service/file-not-found') {\n *       console.log(\"Could not read file: \" + e['file']);\n *     }\n *   }\n */\n\nexport type ErrorMap<ErrorCode extends string> = {\n  readonly [K in ErrorCode]: string;\n};\n\nconst ERROR_NAME = 'FirebaseError';\n\nexport interface StringLike {\n  toString(): string;\n}\n\nexport interface ErrorData {\n  [key: string]: unknown;\n}\n\n// Based on code from:\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Custom_Error_Types\nexport class FirebaseError extends Error {\n  /** The custom name for all FirebaseErrors. */\n  readonly name: string = ERROR_NAME;\n\n  constructor(\n    /** The error code for this error. */\n    readonly code: string,\n    message: string,\n    /** Custom data for this error. */\n    public customData?: Record<string, unknown>\n  ) {\n    super(message);\n\n    // Fix For ES5\n    // https://github.com/Microsoft/TypeScript-wiki/blob/master/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work\n    Object.setPrototypeOf(this, FirebaseError.prototype);\n\n    // Maintains proper stack trace for where our error was thrown.\n    // Only available on V8.\n    if (Error.captureStackTrace) {\n      Error.captureStackTrace(this, ErrorFactory.prototype.create);\n    }\n  }\n}\n\nexport class ErrorFactory<\n  ErrorCode extends string,\n  ErrorParams extends { readonly [K in ErrorCode]?: ErrorData } = {}\n> {\n  constructor(\n    private readonly service: string,\n    private readonly serviceName: string,\n    private readonly errors: ErrorMap<ErrorCode>\n  ) {}\n\n  create<K extends ErrorCode>(\n    code: K,\n    ...data: K extends keyof ErrorParams ? [ErrorParams[K]] : []\n  ): FirebaseError {\n    const customData = (data[0] as ErrorData) || {};\n    const fullCode = `${this.service}/${code}`;\n    const template = this.errors[code];\n\n    const message = template ? replaceTemplate(template, customData) : 'Error';\n    // Service Name: Error message (service/code).\n    const fullMessage = `${this.serviceName}: ${message} (${fullCode}).`;\n\n    const error = new FirebaseError(fullCode, fullMessage, customData);\n\n    return error;\n  }\n}\n\nfunction replaceTemplate(template: string, data: ErrorData): string {\n  return template.replace(PATTERN, (_, key) => {\n    const value = data[key];\n    return value != null ? String(value) : `<${key}?>`;\n  });\n}\n\nconst PATTERN = /\\{\\$([^}]+)}/g;\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport function contains<T extends object>(obj: T, key: string): boolean {\n  return Object.prototype.hasOwnProperty.call(obj, key);\n}\n\nexport function safeGet<T extends object, K extends keyof T>(\n  obj: T,\n  key: K\n): T[K] | undefined {\n  if (Object.prototype.hasOwnProperty.call(obj, key)) {\n    return obj[key];\n  } else {\n    return undefined;\n  }\n}\n\nexport function isEmpty(obj: object): obj is {} {\n  for (const key in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, key)) {\n      return false;\n    }\n  }\n  return true;\n}\n\nexport function map<K extends string, V, U>(\n  obj: { [key in K]: V },\n  fn: (value: V, key: K, obj: { [key in K]: V }) => U,\n  contextObj?: unknown\n): { [key in K]: U } {\n  const res: Partial<{ [key in K]: U }> = {};\n  for (const key in obj) {\n    if (Object.prototype.hasOwnProperty.call(obj, key)) {\n      res[key] = fn.call(contextObj, obj[key], key, obj);\n    }\n  }\n  return res as { [key in K]: U };\n}\n\n/**\n * Deep equal two objects. Support Arrays and Objects.\n */\nexport function deepEqual(a: object, b: object): boolean {\n  if (a === b) {\n    return true;\n  }\n\n  const aKeys = Object.keys(a);\n  const bKeys = Object.keys(b);\n  for (const k of aKeys) {\n    if (!bKeys.includes(k)) {\n      return false;\n    }\n\n    const aProp = (a as Record<string, unknown>)[k];\n    const bProp = (b as Record<string, unknown>)[k];\n    if (isObject(aProp) && isObject(bProp)) {\n      if (!deepEqual(aProp, bProp)) {\n        return false;\n      }\n    } else if (aProp !== bProp) {\n      return false;\n    }\n  }\n\n  for (const k of bKeys) {\n    if (!aKeys.includes(k)) {\n      return false;\n    }\n  }\n  return true;\n}\n\nfunction isObject(thing: unknown): thing is object {\n  return thing !== null && typeof thing === 'object';\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport interface Compat<T> {\n  _delegate: T;\n}\n\nexport function getModularInstance<ExpService>(\n  service: Compat<ExpService> | ExpService\n): ExpService {\n  if (service && (service as Compat<ExpService>)._delegate) {\n    return (service as Compat<ExpService>)._delegate;\n  } else {\n    return service as ExpService;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport type LogLevelString =\n  | 'debug'\n  | 'verbose'\n  | 'info'\n  | 'warn'\n  | 'error'\n  | 'silent';\n\nexport interface LogOptions {\n  level: LogLevelString;\n}\n\nexport type LogCallback = (callbackParams: LogCallbackParams) => void;\n\nexport interface LogCallbackParams {\n  level: LogLevelString;\n  message: string;\n  args: unknown[];\n  type: string;\n}\n\n/**\n * A container for all of the Logger instances\n */\nexport const instances: Logger[] = [];\n\n/**\n * The JS SDK supports 5 log levels and also allows a user the ability to\n * silence the logs altogether.\n *\n * The order is a follows:\n * DEBUG < VERBOSE < INFO < WARN < ERROR\n *\n * All of the log types above the current log level will be captured (i.e. if\n * you set the log level to `INFO`, errors will still be logged, but `DEBUG` and\n * `VERBOSE` logs will not)\n */\nexport enum LogLevel {\n  DEBUG,\n  VERBOSE,\n  INFO,\n  WARN,\n  ERROR,\n  SILENT\n}\n\nconst levelStringToEnum: { [key in LogLevelString]: LogLevel } = {\n  'debug': LogLevel.DEBUG,\n  'verbose': LogLevel.VERBOSE,\n  'info': LogLevel.INFO,\n  'warn': LogLevel.WARN,\n  'error': LogLevel.ERROR,\n  'silent': LogLevel.SILENT\n};\n\n/**\n * The default log level\n */\nconst defaultLogLevel: LogLevel = LogLevel.INFO;\n\n/**\n * We allow users the ability to pass their own log handler. We will pass the\n * type of log, the current log level, and any other arguments passed (i.e. the\n * messages that the user wants to log) to this function.\n */\nexport type LogHandler = (\n  loggerInstance: Logger,\n  logType: LogLevel,\n  ...args: unknown[]\n) => void;\n\n/**\n * By default, `console.debug` is not displayed in the developer console (in\n * chrome). To avoid forcing users to have to opt-in to these logs twice\n * (i.e. once for firebase, and once in the console), we are sending `DEBUG`\n * logs to the `console.log` function.\n */\nconst ConsoleMethod = {\n  [LogLevel.DEBUG]: 'log',\n  [LogLevel.VERBOSE]: 'log',\n  [LogLevel.INFO]: 'info',\n  [LogLevel.WARN]: 'warn',\n  [LogLevel.ERROR]: 'error'\n};\n\n/**\n * The default log handler will forward DEBUG, VERBOSE, INFO, WARN, and ERROR\n * messages on to their corresponding console counterparts (if the log method\n * is supported by the current log level)\n */\nconst defaultLogHandler: LogHandler = (instance, logType, ...args): void => {\n  if (logType < instance.logLevel) {\n    return;\n  }\n  const now = new Date().toISOString();\n  const method = ConsoleMethod[logType as keyof typeof ConsoleMethod];\n  if (method) {\n    console[method as 'log' | 'info' | 'warn' | 'error'](\n      `[${now}]  ${instance.name}:`,\n      ...args\n    );\n  } else {\n    throw new Error(\n      `Attempted to log a message with an invalid logType (value: ${logType})`\n    );\n  }\n};\n\nexport class Logger {\n  /**\n   * Gives you an instance of a Logger to capture messages according to\n   * Firebase's logging scheme.\n   *\n   * @param name The name that the logs will be associated with\n   */\n  constructor(public name: string) {\n    /**\n     * Capture the current instance for later use\n     */\n    instances.push(this);\n  }\n\n  /**\n   * The log level of the given Logger instance.\n   */\n  private _logLevel = defaultLogLevel;\n\n  get logLevel(): LogLevel {\n    return this._logLevel;\n  }\n\n  set logLevel(val: LogLevel) {\n    if (!(val in LogLevel)) {\n      throw new TypeError(`Invalid value \"${val}\" assigned to \\`logLevel\\``);\n    }\n    this._logLevel = val;\n  }\n\n  // Workaround for setter/getter having to be the same type.\n  setLogLevel(val: LogLevel | LogLevelString): void {\n    this._logLevel = typeof val === 'string' ? levelStringToEnum[val] : val;\n  }\n\n  /**\n   * The main (internal) log handler for the Logger instance.\n   * Can be set to a new function in internal package code but not by user.\n   */\n  private _logHandler: LogHandler = defaultLogHandler;\n  get logHandler(): LogHandler {\n    return this._logHandler;\n  }\n  set logHandler(val: LogHandler) {\n    if (typeof val !== 'function') {\n      throw new TypeError('Value assigned to `logHandler` must be a function');\n    }\n    this._logHandler = val;\n  }\n\n  /**\n   * The optional, additional, user-defined log handler for the Logger instance.\n   */\n  private _userLogHandler: LogHandler | null = null;\n  get userLogHandler(): LogHandler | null {\n    return this._userLogHandler;\n  }\n  set userLogHandler(val: LogHandler | null) {\n    this._userLogHandler = val;\n  }\n\n  /**\n   * The functions below are all based on the `console` interface\n   */\n\n  debug(...args: unknown[]): void {\n    this._userLogHandler && this._userLogHandler(this, LogLevel.DEBUG, ...args);\n    this._logHandler(this, LogLevel.DEBUG, ...args);\n  }\n  log(...args: unknown[]): void {\n    this._userLogHandler &&\n      this._userLogHandler(this, LogLevel.VERBOSE, ...args);\n    this._logHandler(this, LogLevel.VERBOSE, ...args);\n  }\n  info(...args: unknown[]): void {\n    this._userLogHandler && this._userLogHandler(this, LogLevel.INFO, ...args);\n    this._logHandler(this, LogLevel.INFO, ...args);\n  }\n  warn(...args: unknown[]): void {\n    this._userLogHandler && this._userLogHandler(this, LogLevel.WARN, ...args);\n    this._logHandler(this, LogLevel.WARN, ...args);\n  }\n  error(...args: unknown[]): void {\n    this._userLogHandler && this._userLogHandler(this, LogLevel.ERROR, ...args);\n    this._logHandler(this, LogLevel.ERROR, ...args);\n  }\n}\n\nexport function setLogLevel(level: LogLevelString | LogLevel): void {\n  instances.forEach(inst => {\n    inst.setLogLevel(level);\n  });\n}\n\nexport function setUserLogHandler(\n  logCallback: LogCallback | null,\n  options?: LogOptions\n): void {\n  for (const instance of instances) {\n    let customLogLevel: LogLevel | null = null;\n    if (options && options.level) {\n      customLogLevel = levelStringToEnum[options.level];\n    }\n    if (logCallback === null) {\n      instance.userLogHandler = null;\n    } else {\n      instance.userLogHandler = (\n        instance: Logger,\n        level: LogLevel,\n        ...args: unknown[]\n      ) => {\n        const message = args\n          .map(arg => {\n            if (arg == null) {\n              return null;\n            } else if (typeof arg === 'string') {\n              return arg;\n            } else if (typeof arg === 'number' || typeof arg === 'boolean') {\n              return arg.toString();\n            } else if (arg instanceof Error) {\n              return arg.message;\n            } else {\n              try {\n                return JSON.stringify(arg);\n              } catch (ignored) {\n                return null;\n              }\n            }\n          })\n          .filter(arg => arg)\n          .join(' ');\n        if (level >= (customLogLevel ?? instance.logLevel)) {\n          logCallback({\n            level: LogLevel[level].toLowerCase() as LogLevelString,\n            message,\n            args,\n            type: instance.name\n          });\n        }\n      };\n    }\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nimport {\n  InstantiationMode,\n  InstanceFactory,\n  ComponentType,\n  Dictionary,\n  Name,\n  onInstanceCreatedCallback\n} from './types';\n\n/**\n * Component for service name T, e.g. `auth`, `auth-internal`\n */\nexport class Component<T extends Name = Name> {\n  multipleInstances = false;\n  /**\n   * Properties to be added to the service namespace\n   */\n  serviceProps: Dictionary = {};\n\n  instantiationMode = InstantiationMode.LAZY;\n\n  onInstanceCreated: onInstanceCreatedCallback<T> | null = null;\n\n  /**\n   *\n   * @param name The public service name, e.g. app, auth, firestore, database\n   * @param instanceFactory Service factory responsible for creating the public interface\n   * @param type whether the service provided by the component is public or private\n   */\n  constructor(\n    readonly name: T,\n    readonly instanceFactory: InstanceFactory<T>,\n    readonly type: ComponentType\n  ) {}\n\n  setInstantiationMode(mode: InstantiationMode): this {\n    this.instantiationMode = mode;\n    return this;\n  }\n\n  setMultipleInstances(multipleInstances: boolean): this {\n    this.multipleInstances = multipleInstances;\n    return this;\n  }\n\n  setServiceProps(props: Dictionary): this {\n    this.serviceProps = props;\n    return this;\n  }\n\n  setInstanceCreatedCallback(callback: onInstanceCreatedCallback<T>): this {\n    this.onInstanceCreated = callback;\n    return this;\n  }\n}\n","const instanceOfAny = (object, constructors) => constructors.some((c) => object instanceof c);\n\nlet idbProxyableTypes;\nlet cursorAdvanceMethods;\n// This is a function to prevent it throwing up in node environments.\nfunction getIdbProxyableTypes() {\n    return (idbProxyableTypes ||\n        (idbProxyableTypes = [\n            IDBDatabase,\n            IDBObjectStore,\n            IDBIndex,\n            IDBCursor,\n            IDBTransaction,\n        ]));\n}\n// This is a function to prevent it throwing up in node environments.\nfunction getCursorAdvanceMethods() {\n    return (cursorAdvanceMethods ||\n        (cursorAdvanceMethods = [\n            IDBCursor.prototype.advance,\n            IDBCursor.prototype.continue,\n            IDBCursor.prototype.continuePrimaryKey,\n        ]));\n}\nconst cursorRequestMap = new WeakMap();\nconst transactionDoneMap = new WeakMap();\nconst transactionStoreNamesMap = new WeakMap();\nconst transformCache = new WeakMap();\nconst reverseTransformCache = new WeakMap();\nfunction promisifyRequest(request) {\n    const promise = new Promise((resolve, reject) => {\n        const unlisten = () => {\n            request.removeEventListener('success', success);\n            request.removeEventListener('error', error);\n        };\n        const success = () => {\n            resolve(wrap(request.result));\n            unlisten();\n        };\n        const error = () => {\n            reject(request.error);\n            unlisten();\n        };\n        request.addEventListener('success', success);\n        request.addEventListener('error', error);\n    });\n    promise\n        .then((value) => {\n        // Since cursoring reuses the IDBRequest (*sigh*), we cache it for later retrieval\n        // (see wrapFunction).\n        if (value instanceof IDBCursor) {\n            cursorRequestMap.set(value, request);\n        }\n        // Catching to avoid \"Uncaught Promise exceptions\"\n    })\n        .catch(() => { });\n    // This mapping exists in reverseTransformCache but doesn't doesn't exist in transformCache. This\n    // is because we create many promises from a single IDBRequest.\n    reverseTransformCache.set(promise, request);\n    return promise;\n}\nfunction cacheDonePromiseForTransaction(tx) {\n    // Early bail if we've already created a done promise for this transaction.\n    if (transactionDoneMap.has(tx))\n        return;\n    const done = new Promise((resolve, reject) => {\n        const unlisten = () => {\n            tx.removeEventListener('complete', complete);\n            tx.removeEventListener('error', error);\n            tx.removeEventListener('abort', error);\n        };\n        const complete = () => {\n            resolve();\n            unlisten();\n        };\n        const error = () => {\n            reject(tx.error || new DOMException('AbortError', 'AbortError'));\n            unlisten();\n        };\n        tx.addEventListener('complete', complete);\n        tx.addEventListener('error', error);\n        tx.addEventListener('abort', error);\n    });\n    // Cache it for later retrieval.\n    transactionDoneMap.set(tx, done);\n}\nlet idbProxyTraps = {\n    get(target, prop, receiver) {\n        if (target instanceof IDBTransaction) {\n            // Special handling for transaction.done.\n            if (prop === 'done')\n                return transactionDoneMap.get(target);\n            // Polyfill for objectStoreNames because of Edge.\n            if (prop === 'objectStoreNames') {\n                return target.objectStoreNames || transactionStoreNamesMap.get(target);\n            }\n            // Make tx.store return the only store in the transaction, or undefined if there are many.\n            if (prop === 'store') {\n                return receiver.objectStoreNames[1]\n                    ? undefined\n                    : receiver.objectStore(receiver.objectStoreNames[0]);\n            }\n        }\n        // Else transform whatever we get back.\n        return wrap(target[prop]);\n    },\n    set(target, prop, value) {\n        target[prop] = value;\n        return true;\n    },\n    has(target, prop) {\n        if (target instanceof IDBTransaction &&\n            (prop === 'done' || prop === 'store')) {\n            return true;\n        }\n        return prop in target;\n    },\n};\nfunction replaceTraps(callback) {\n    idbProxyTraps = callback(idbProxyTraps);\n}\nfunction wrapFunction(func) {\n    // Due to expected object equality (which is enforced by the caching in `wrap`), we\n    // only create one new func per func.\n    // Edge doesn't support objectStoreNames (booo), so we polyfill it here.\n    if (func === IDBDatabase.prototype.transaction &&\n        !('objectStoreNames' in IDBTransaction.prototype)) {\n        return function (storeNames, ...args) {\n            const tx = func.call(unwrap(this), storeNames, ...args);\n            transactionStoreNamesMap.set(tx, storeNames.sort ? storeNames.sort() : [storeNames]);\n            return wrap(tx);\n        };\n    }\n    // Cursor methods are special, as the behaviour is a little more different to standard IDB. In\n    // IDB, you advance the cursor and wait for a new 'success' on the IDBRequest that gave you the\n    // cursor. It's kinda like a promise that can resolve with many values. That doesn't make sense\n    // with real promises, so each advance methods returns a new promise for the cursor object, or\n    // undefined if the end of the cursor has been reached.\n    if (getCursorAdvanceMethods().includes(func)) {\n        return function (...args) {\n            // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use\n            // the original object.\n            func.apply(unwrap(this), args);\n            return wrap(cursorRequestMap.get(this));\n        };\n    }\n    return function (...args) {\n        // Calling the original function with the proxy as 'this' causes ILLEGAL INVOCATION, so we use\n        // the original object.\n        return wrap(func.apply(unwrap(this), args));\n    };\n}\nfunction transformCachableValue(value) {\n    if (typeof value === 'function')\n        return wrapFunction(value);\n    // This doesn't return, it just creates a 'done' promise for the transaction,\n    // which is later returned for transaction.done (see idbObjectHandler).\n    if (value instanceof IDBTransaction)\n        cacheDonePromiseForTransaction(value);\n    if (instanceOfAny(value, getIdbProxyableTypes()))\n        return new Proxy(value, idbProxyTraps);\n    // Return the same value back if we're not going to transform it.\n    return value;\n}\nfunction wrap(value) {\n    // We sometimes generate multiple promises from a single IDBRequest (eg when cursoring), because\n    // IDB is weird and a single IDBRequest can yield many responses, so these can't be cached.\n    if (value instanceof IDBRequest)\n        return promisifyRequest(value);\n    // If we've already transformed this value before, reuse the transformed value.\n    // This is faster, but it also provides object equality.\n    if (transformCache.has(value))\n        return transformCache.get(value);\n    const newValue = transformCachableValue(value);\n    // Not all types are transformed.\n    // These may be primitive types, so they can't be WeakMap keys.\n    if (newValue !== value) {\n        transformCache.set(value, newValue);\n        reverseTransformCache.set(newValue, value);\n    }\n    return newValue;\n}\nconst unwrap = (value) => reverseTransformCache.get(value);\n\nexport { reverseTransformCache as a, instanceOfAny as i, replaceTraps as r, unwrap as u, wrap as w };\n","import { w as wrap, r as replaceTraps } from './wrap-idb-value.js';\nexport { u as unwrap, w as wrap } from './wrap-idb-value.js';\n\n/**\n * Open a database.\n *\n * @param name Name of the database.\n * @param version Schema version.\n * @param callbacks Additional callbacks.\n */\nfunction openDB(name, version, { blocked, upgrade, blocking, terminated } = {}) {\n    const request = indexedDB.open(name, version);\n    const openPromise = wrap(request);\n    if (upgrade) {\n        request.addEventListener('upgradeneeded', (event) => {\n            upgrade(wrap(request.result), event.oldVersion, event.newVersion, wrap(request.transaction));\n        });\n    }\n    if (blocked)\n        request.addEventListener('blocked', () => blocked());\n    openPromise\n        .then((db) => {\n        if (terminated)\n            db.addEventListener('close', () => terminated());\n        if (blocking)\n            db.addEventListener('versionchange', () => blocking());\n    })\n        .catch(() => { });\n    return openPromise;\n}\n/**\n * Delete a database.\n *\n * @param name Name of the database.\n */\nfunction deleteDB(name, { blocked } = {}) {\n    const request = indexedDB.deleteDatabase(name);\n    if (blocked)\n        request.addEventListener('blocked', () => blocked());\n    return wrap(request).then(() => undefined);\n}\n\nconst readMethods = ['get', 'getKey', 'getAll', 'getAllKeys', 'count'];\nconst writeMethods = ['put', 'add', 'delete', 'clear'];\nconst cachedMethods = new Map();\nfunction getMethod(target, prop) {\n    if (!(target instanceof IDBDatabase &&\n        !(prop in target) &&\n        typeof prop === 'string')) {\n        return;\n    }\n    if (cachedMethods.get(prop))\n        return cachedMethods.get(prop);\n    const targetFuncName = prop.replace(/FromIndex$/, '');\n    const useIndex = prop !== targetFuncName;\n    const isWrite = writeMethods.includes(targetFuncName);\n    if (\n    // Bail if the target doesn't exist on the target. Eg, getAll isn't in Edge.\n    !(targetFuncName in (useIndex ? IDBIndex : IDBObjectStore).prototype) ||\n        !(isWrite || readMethods.includes(targetFuncName))) {\n        return;\n    }\n    const method = async function (storeName, ...args) {\n        // isWrite ? 'readwrite' : undefined gzipps better, but fails in Edge :(\n        const tx = this.transaction(storeName, isWrite ? 'readwrite' : 'readonly');\n        let target = tx.store;\n        if (useIndex)\n            target = target.index(args.shift());\n        // Must reject if op rejects.\n        // If it's a write operation, must reject if tx.done rejects.\n        // Must reject with op rejection first.\n        // Must resolve with op value.\n        // Must handle both promises (no unhandled rejections)\n        return (await Promise.all([\n            target[targetFuncName](...args),\n            isWrite && tx.done,\n        ]))[0];\n    };\n    cachedMethods.set(prop, method);\n    return method;\n}\nreplaceTraps((oldTraps) => ({\n    ...oldTraps,\n    get: (target, prop, receiver) => getMethod(target, prop) || oldTraps.get(target, prop, receiver),\n    has: (target, prop) => !!getMethod(target, prop) || oldTraps.has(target, prop),\n}));\n\nexport { deleteDB, openDB };\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ErrorFactory, FirebaseError } from '@firebase/util';\nimport { SERVICE, SERVICE_NAME } from './constants';\n\nexport const enum ErrorCode {\n  MISSING_APP_CONFIG_VALUES = 'missing-app-config-values',\n  NOT_REGISTERED = 'not-registered',\n  INSTALLATION_NOT_FOUND = 'installation-not-found',\n  REQUEST_FAILED = 'request-failed',\n  APP_OFFLINE = 'app-offline',\n  DELETE_PENDING_REGISTRATION = 'delete-pending-registration'\n}\n\nconst ERROR_DESCRIPTION_MAP: { readonly [key in ErrorCode]: string } = {\n  [ErrorCode.MISSING_APP_CONFIG_VALUES]:\n    'Missing App configuration value: \"{$valueName}\"',\n  [ErrorCode.NOT_REGISTERED]: 'Firebase Installation is not registered.',\n  [ErrorCode.INSTALLATION_NOT_FOUND]: 'Firebase Installation not found.',\n  [ErrorCode.REQUEST_FAILED]:\n    '{$requestName} request failed with error \"{$serverCode} {$serverStatus}: {$serverMessage}\"',\n  [ErrorCode.APP_OFFLINE]: 'Could not process request. Application offline.',\n  [ErrorCode.DELETE_PENDING_REGISTRATION]:\n    \"Can't delete installation while there is a pending registration request.\"\n};\n\ninterface ErrorParams {\n  [ErrorCode.MISSING_APP_CONFIG_VALUES]: {\n    valueName: string;\n  };\n  [ErrorCode.REQUEST_FAILED]: {\n    requestName: string;\n    [index: string]: string | number; // to make Typescript 3.8 happy\n  } & ServerErrorData;\n}\n\nexport const ERROR_FACTORY = new ErrorFactory<ErrorCode, ErrorParams>(\n  SERVICE,\n  SERVICE_NAME,\n  ERROR_DESCRIPTION_MAP\n);\n\nexport interface ServerErrorData {\n  serverCode: number;\n  serverMessage: string;\n  serverStatus: string;\n}\n\nexport type ServerError = FirebaseError & { customData: ServerErrorData };\n\n/** Returns true if error is a FirebaseError that is based on an error from the server. */\nexport function isServerError(error: unknown): error is ServerError {\n  return (\n    error instanceof FirebaseError &&\n    error.code.includes(ErrorCode.REQUEST_FAILED)\n  );\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { version } from '../../package.json';\n\nexport const PENDING_TIMEOUT_MS = 10000;\n\nexport const PACKAGE_VERSION = `w:${version}`;\nexport const INTERNAL_AUTH_VERSION = 'FIS_v2';\n\nexport const INSTALLATIONS_API_URL =\n  'https://firebaseinstallations.googleapis.com/v1';\n\nexport const TOKEN_EXPIRATION_BUFFER = 60 * 60 * 1000; // One hour\n\nexport const SERVICE = 'installations';\nexport const SERVICE_NAME = 'Installations';\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseError } from '@firebase/util';\nimport { GenerateAuthTokenResponse } from '../interfaces/api-response';\nimport {\n  CompletedAuthToken,\n  RegisteredInstallationEntry,\n  RequestStatus\n} from '../interfaces/installation-entry';\nimport {\n  INSTALLATIONS_API_URL,\n  INTERNAL_AUTH_VERSION\n} from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\nimport { AppConfig } from '../interfaces/installation-impl';\n\nexport function getInstallationsEndpoint({ projectId }: AppConfig): string {\n  return `${INSTALLATIONS_API_URL}/projects/${projectId}/installations`;\n}\n\nexport function extractAuthTokenInfoFromResponse(\n  response: GenerateAuthTokenResponse\n): CompletedAuthToken {\n  return {\n    token: response.token,\n    requestStatus: RequestStatus.COMPLETED,\n    expiresIn: getExpiresInFromResponseExpiresIn(response.expiresIn),\n    creationTime: Date.now()\n  };\n}\n\nexport async function getErrorFromResponse(\n  requestName: string,\n  response: Response\n): Promise<FirebaseError> {\n  const responseJson: ErrorResponse = await response.json();\n  const errorData = responseJson.error;\n  return ERROR_FACTORY.create(ErrorCode.REQUEST_FAILED, {\n    requestName,\n    serverCode: errorData.code,\n    serverMessage: errorData.message,\n    serverStatus: errorData.status\n  });\n}\n\nexport function getHeaders({ apiKey }: AppConfig): Headers {\n  return new Headers({\n    'Content-Type': 'application/json',\n    Accept: 'application/json',\n    'x-goog-api-key': apiKey\n  });\n}\n\nexport function getHeadersWithAuth(\n  appConfig: AppConfig,\n  { refreshToken }: RegisteredInstallationEntry\n): Headers {\n  const headers = getHeaders(appConfig);\n  headers.append('Authorization', getAuthorizationHeader(refreshToken));\n  return headers;\n}\n\nexport interface ErrorResponse {\n  error: {\n    code: number;\n    message: string;\n    status: string;\n  };\n}\n\n/**\n * Calls the passed in fetch wrapper and returns the response.\n * If the returned response has a status of 5xx, re-runs the function once and\n * returns the response.\n */\nexport async function retryIfServerError(\n  fn: () => Promise<Response>\n): Promise<Response> {\n  const result = await fn();\n\n  if (result.status >= 500 && result.status < 600) {\n    // Internal Server Error. Retry request.\n    return fn();\n  }\n\n  return result;\n}\n\nfunction getExpiresInFromResponseExpiresIn(responseExpiresIn: string): number {\n  // This works because the server will never respond with fractions of a second.\n  return Number(responseExpiresIn.replace('s', '000'));\n}\n\nfunction getAuthorizationHeader(refreshToken: string): string {\n  return `${INTERNAL_AUTH_VERSION} ${refreshToken}`;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/** Returns a promise that resolves after given time passes. */\nexport function sleep(ms: number): Promise<void> {\n  return new Promise<void>(resolve => {\n    setTimeout(resolve, ms);\n  });\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { bufferToBase64UrlSafe } from './buffer-to-base64-url-safe';\n\nexport const VALID_FID_PATTERN = /^[cdef][\\w-]{21}$/;\nexport const INVALID_FID = '';\n\n/**\n * Generates a new FID using random values from Web Crypto API.\n * Returns an empty string if FID generation fails for any reason.\n */\nexport function generateFid(): string {\n  try {\n    // A valid FID has exactly 22 base64 characters, which is 132 bits, or 16.5\n    // bytes. our implementation generates a 17 byte array instead.\n    const fidByteArray = new Uint8Array(17);\n    const crypto =\n      self.crypto || (self as unknown as { msCrypto: Crypto }).msCrypto;\n    crypto.getRandomValues(fidByteArray);\n\n    // Replace the first 4 random bits with the constant FID header of 0b0111.\n    fidByteArray[0] = 0b01110000 + (fidByteArray[0] % 0b00010000);\n\n    const fid = encode(fidByteArray);\n\n    return VALID_FID_PATTERN.test(fid) ? fid : INVALID_FID;\n  } catch {\n    // FID generation errored\n    return INVALID_FID;\n  }\n}\n\n/** Converts a FID Uint8Array to a base64 string representation. */\nfunction encode(fidByteArray: Uint8Array): string {\n  const b64String = bufferToBase64UrlSafe(fidByteArray);\n\n  // Remove the 23rd character that was added because of the extra 4 bits at the\n  // end of our 17 byte array, and the '=' padding.\n  return b64String.substr(0, 22);\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nexport function bufferToBase64UrlSafe(array: Uint8Array): string {\n  const b64 = btoa(String.fromCharCode(...array));\n  return b64.replace(/\\+/g, '-').replace(/\\//g, '_');\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { AppConfig } from '../interfaces/installation-impl';\n\n/** Returns a string key that can be used to identify the app. */\nexport function getKey(appConfig: AppConfig): string {\n  return `${appConfig.appName}!${appConfig.appId}`;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getKey } from '../util/get-key';\nimport { AppConfig } from '../interfaces/installation-impl';\nimport { IdChangeCallbackFn } from '../api';\n\nconst fidChangeCallbacks: Map<string, Set<IdChangeCallbackFn>> = new Map();\n\n/**\n * Calls the onIdChange callbacks with the new FID value, and broadcasts the\n * change to other tabs.\n */\nexport function fidChanged(appConfig: AppConfig, fid: string): void {\n  const key = getKey(appConfig);\n\n  callFidChangeCallbacks(key, fid);\n  broadcastFidChange(key, fid);\n}\n\nexport function addCallback(\n  appConfig: AppConfig,\n  callback: IdChangeCallbackFn\n): void {\n  // Open the broadcast channel if it's not already open,\n  // to be able to listen to change events from other tabs.\n  getBroadcastChannel();\n\n  const key = getKey(appConfig);\n\n  let callbackSet = fidChangeCallbacks.get(key);\n  if (!callbackSet) {\n    callbackSet = new Set();\n    fidChangeCallbacks.set(key, callbackSet);\n  }\n  callbackSet.add(callback);\n}\n\nexport function removeCallback(\n  appConfig: AppConfig,\n  callback: IdChangeCallbackFn\n): void {\n  const key = getKey(appConfig);\n\n  const callbackSet = fidChangeCallbacks.get(key);\n\n  if (!callbackSet) {\n    return;\n  }\n\n  callbackSet.delete(callback);\n  if (callbackSet.size === 0) {\n    fidChangeCallbacks.delete(key);\n  }\n\n  // Close broadcast channel if there are no more callbacks.\n  closeBroadcastChannel();\n}\n\nfunction callFidChangeCallbacks(key: string, fid: string): void {\n  const callbacks = fidChangeCallbacks.get(key);\n  if (!callbacks) {\n    return;\n  }\n\n  for (const callback of callbacks) {\n    callback(fid);\n  }\n}\n\nfunction broadcastFidChange(key: string, fid: string): void {\n  const channel = getBroadcastChannel();\n  if (channel) {\n    channel.postMessage({ key, fid });\n  }\n  closeBroadcastChannel();\n}\n\nlet broadcastChannel: BroadcastChannel | null = null;\n/** Opens and returns a BroadcastChannel if it is supported by the browser. */\nfunction getBroadcastChannel(): BroadcastChannel | null {\n  if (!broadcastChannel && 'BroadcastChannel' in self) {\n    broadcastChannel = new BroadcastChannel('[Firebase] FID Change');\n    broadcastChannel.onmessage = e => {\n      callFidChangeCallbacks(e.data.key, e.data.fid);\n    };\n  }\n  return broadcastChannel;\n}\n\nfunction closeBroadcastChannel(): void {\n  if (fidChangeCallbacks.size === 0 && broadcastChannel) {\n    broadcastChannel.close();\n    broadcastChannel = null;\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { DBSchema, IDBPDatabase, openDB } from 'idb';\nimport { AppConfig } from '../interfaces/installation-impl';\nimport { InstallationEntry } from '../interfaces/installation-entry';\nimport { getKey } from '../util/get-key';\nimport { fidChanged } from './fid-changed';\n\nconst DATABASE_NAME = 'firebase-installations-database';\nconst DATABASE_VERSION = 1;\nconst OBJECT_STORE_NAME = 'firebase-installations-store';\n\ninterface InstallationsDB extends DBSchema {\n  'firebase-installations-store': {\n    key: string;\n    value: InstallationEntry | undefined;\n  };\n}\n\nlet dbPromise: Promise<IDBPDatabase<InstallationsDB>> | null = null;\nfunction getDbPromise(): Promise<IDBPDatabase<InstallationsDB>> {\n  if (!dbPromise) {\n    dbPromise = openDB(DATABASE_NAME, DATABASE_VERSION, {\n      upgrade: (db, oldVersion) => {\n        // We don't use 'break' in this switch statement, the fall-through\n        // behavior is what we want, because if there are multiple versions between\n        // the old version and the current version, we want ALL the migrations\n        // that correspond to those versions to run, not only the last one.\n        // eslint-disable-next-line default-case\n        switch (oldVersion) {\n          case 0:\n            db.createObjectStore(OBJECT_STORE_NAME);\n        }\n      }\n    });\n  }\n  return dbPromise;\n}\n\n/** Gets record(s) from the objectStore that match the given key. */\nexport async function get(\n  appConfig: AppConfig\n): Promise<InstallationEntry | undefined> {\n  const key = getKey(appConfig);\n  const db = await getDbPromise();\n  return db\n    .transaction(OBJECT_STORE_NAME)\n    .objectStore(OBJECT_STORE_NAME)\n    .get(key) as Promise<InstallationEntry>;\n}\n\n/** Assigns or overwrites the record for the given key with the given value. */\nexport async function set<ValueType extends InstallationEntry>(\n  appConfig: AppConfig,\n  value: ValueType\n): Promise<ValueType> {\n  const key = getKey(appConfig);\n  const db = await getDbPromise();\n  const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n  const objectStore = tx.objectStore(OBJECT_STORE_NAME);\n  const oldValue = (await objectStore.get(key)) as InstallationEntry;\n  await objectStore.put(value, key);\n  await tx.done;\n\n  if (!oldValue || oldValue.fid !== value.fid) {\n    fidChanged(appConfig, value.fid);\n  }\n\n  return value;\n}\n\n/** Removes record(s) from the objectStore that match the given key. */\nexport async function remove(appConfig: AppConfig): Promise<void> {\n  const key = getKey(appConfig);\n  const db = await getDbPromise();\n  const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n  await tx.objectStore(OBJECT_STORE_NAME).delete(key);\n  await tx.done;\n}\n\n/**\n * Atomically updates a record with the result of updateFn, which gets\n * called with the current value. If newValue is undefined, the record is\n * deleted instead.\n * @return Updated value\n */\nexport async function update<ValueType extends InstallationEntry | undefined>(\n  appConfig: AppConfig,\n  updateFn: (previousValue: InstallationEntry | undefined) => ValueType\n): Promise<ValueType> {\n  const key = getKey(appConfig);\n  const db = await getDbPromise();\n  const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n  const store = tx.objectStore(OBJECT_STORE_NAME);\n  const oldValue: InstallationEntry | undefined = (await store.get(\n    key\n  )) as InstallationEntry;\n  const newValue = updateFn(oldValue);\n\n  if (newValue === undefined) {\n    await store.delete(key);\n  } else {\n    await store.put(newValue, key);\n  }\n  await tx.done;\n\n  if (newValue && (!oldValue || oldValue.fid !== newValue.fid)) {\n    fidChanged(appConfig, newValue.fid);\n  }\n\n  return newValue;\n}\n\nexport async function clear(): Promise<void> {\n  const db = await getDbPromise();\n  const tx = db.transaction(OBJECT_STORE_NAME, 'readwrite');\n  await tx.objectStore(OBJECT_STORE_NAME).clear();\n  await tx.done;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { createInstallationRequest } from '../functions/create-installation-request';\nimport {\n  AppConfig,\n  FirebaseInstallationsImpl\n} from '../interfaces/installation-impl';\nimport {\n  InProgressInstallationEntry,\n  InstallationEntry,\n  RegisteredInstallationEntry,\n  RequestStatus\n} from '../interfaces/installation-entry';\nimport { PENDING_TIMEOUT_MS } from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode, isServerError } from '../util/errors';\nimport { sleep } from '../util/sleep';\nimport { generateFid, INVALID_FID } from './generate-fid';\nimport { remove, set, update } from './idb-manager';\n\nexport interface InstallationEntryWithRegistrationPromise {\n  installationEntry: InstallationEntry;\n  /** Exist iff the installationEntry is not registered. */\n  registrationPromise?: Promise<RegisteredInstallationEntry>;\n}\n\n/**\n * Updates and returns the InstallationEntry from the database.\n * Also triggers a registration request if it is necessary and possible.\n */\nexport async function getInstallationEntry(\n  installations: FirebaseInstallationsImpl\n): Promise<InstallationEntryWithRegistrationPromise> {\n  let registrationPromise: Promise<RegisteredInstallationEntry> | undefined;\n\n  const installationEntry = await update(installations.appConfig, oldEntry => {\n    const installationEntry = updateOrCreateInstallationEntry(oldEntry);\n    const entryWithPromise = triggerRegistrationIfNecessary(\n      installations,\n      installationEntry\n    );\n    registrationPromise = entryWithPromise.registrationPromise;\n    return entryWithPromise.installationEntry;\n  });\n\n  if (installationEntry.fid === INVALID_FID) {\n    // FID generation failed. Waiting for the FID from the server.\n    return { installationEntry: await registrationPromise! };\n  }\n\n  return {\n    installationEntry,\n    registrationPromise\n  };\n}\n\n/**\n * Creates a new Installation Entry if one does not exist.\n * Also clears timed out pending requests.\n */\nfunction updateOrCreateInstallationEntry(\n  oldEntry: InstallationEntry | undefined\n): InstallationEntry {\n  const entry: InstallationEntry = oldEntry || {\n    fid: generateFid(),\n    registrationStatus: RequestStatus.NOT_STARTED\n  };\n\n  return clearTimedOutRequest(entry);\n}\n\n/**\n * If the Firebase Installation is not registered yet, this will trigger the\n * registration and return an InProgressInstallationEntry.\n *\n * If registrationPromise does not exist, the installationEntry is guaranteed\n * to be registered.\n */\nfunction triggerRegistrationIfNecessary(\n  installations: FirebaseInstallationsImpl,\n  installationEntry: InstallationEntry\n): InstallationEntryWithRegistrationPromise {\n  if (installationEntry.registrationStatus === RequestStatus.NOT_STARTED) {\n    if (!navigator.onLine) {\n      // Registration required but app is offline.\n      const registrationPromiseWithError = Promise.reject(\n        ERROR_FACTORY.create(ErrorCode.APP_OFFLINE)\n      );\n      return {\n        installationEntry,\n        registrationPromise: registrationPromiseWithError\n      };\n    }\n\n    // Try registering. Change status to IN_PROGRESS.\n    const inProgressEntry: InProgressInstallationEntry = {\n      fid: installationEntry.fid,\n      registrationStatus: RequestStatus.IN_PROGRESS,\n      registrationTime: Date.now()\n    };\n    const registrationPromise = registerInstallation(\n      installations,\n      inProgressEntry\n    );\n    return { installationEntry: inProgressEntry, registrationPromise };\n  } else if (\n    installationEntry.registrationStatus === RequestStatus.IN_PROGRESS\n  ) {\n    return {\n      installationEntry,\n      registrationPromise: waitUntilFidRegistration(installations)\n    };\n  } else {\n    return { installationEntry };\n  }\n}\n\n/** This will be executed only once for each new Firebase Installation. */\nasync function registerInstallation(\n  installations: FirebaseInstallationsImpl,\n  installationEntry: InProgressInstallationEntry\n): Promise<RegisteredInstallationEntry> {\n  try {\n    const registeredInstallationEntry = await createInstallationRequest(\n      installations,\n      installationEntry\n    );\n    return set(installations.appConfig, registeredInstallationEntry);\n  } catch (e) {\n    if (isServerError(e) && e.customData.serverCode === 409) {\n      // Server returned a \"FID can not be used\" error.\n      // Generate a new ID next time.\n      await remove(installations.appConfig);\n    } else {\n      // Registration failed. Set FID as not registered.\n      await set(installations.appConfig, {\n        fid: installationEntry.fid,\n        registrationStatus: RequestStatus.NOT_STARTED\n      });\n    }\n    throw e;\n  }\n}\n\n/** Call if FID registration is pending in another request. */\nasync function waitUntilFidRegistration(\n  installations: FirebaseInstallationsImpl\n): Promise<RegisteredInstallationEntry> {\n  // Unfortunately, there is no way of reliably observing when a value in\n  // IndexedDB changes (yet, see https://github.com/WICG/indexed-db-observers),\n  // so we need to poll.\n\n  let entry: InstallationEntry = await updateInstallationRequest(\n    installations.appConfig\n  );\n  while (entry.registrationStatus === RequestStatus.IN_PROGRESS) {\n    // createInstallation request still in progress.\n    await sleep(100);\n\n    entry = await updateInstallationRequest(installations.appConfig);\n  }\n\n  if (entry.registrationStatus === RequestStatus.NOT_STARTED) {\n    // The request timed out or failed in a different call. Try again.\n    const { installationEntry, registrationPromise } =\n      await getInstallationEntry(installations);\n\n    if (registrationPromise) {\n      return registrationPromise;\n    } else {\n      // if there is no registrationPromise, entry is registered.\n      return installationEntry as RegisteredInstallationEntry;\n    }\n  }\n\n  return entry;\n}\n\n/**\n * Called only if there is a CreateInstallation request in progress.\n *\n * Updates the InstallationEntry in the DB based on the status of the\n * CreateInstallation request.\n *\n * Returns the updated InstallationEntry.\n */\nfunction updateInstallationRequest(\n  appConfig: AppConfig\n): Promise<InstallationEntry> {\n  return update(appConfig, oldEntry => {\n    if (!oldEntry) {\n      throw ERROR_FACTORY.create(ErrorCode.INSTALLATION_NOT_FOUND);\n    }\n    return clearTimedOutRequest(oldEntry);\n  });\n}\n\nfunction clearTimedOutRequest(entry: InstallationEntry): InstallationEntry {\n  if (hasInstallationRequestTimedOut(entry)) {\n    return {\n      fid: entry.fid,\n      registrationStatus: RequestStatus.NOT_STARTED\n    };\n  }\n\n  return entry;\n}\n\nfunction hasInstallationRequestTimedOut(\n  installationEntry: InstallationEntry\n): boolean {\n  return (\n    installationEntry.registrationStatus === RequestStatus.IN_PROGRESS &&\n    installationEntry.registrationTime + PENDING_TIMEOUT_MS < Date.now()\n  );\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { CreateInstallationResponse } from '../interfaces/api-response';\nimport {\n  InProgressInstallationEntry,\n  RegisteredInstallationEntry,\n  RequestStatus\n} from '../interfaces/installation-entry';\nimport { INTERNAL_AUTH_VERSION, PACKAGE_VERSION } from '../util/constants';\nimport {\n  extractAuthTokenInfoFromResponse,\n  getErrorFromResponse,\n  getHeaders,\n  getInstallationsEndpoint,\n  retryIfServerError\n} from './common';\nimport { FirebaseInstallationsImpl } from '../interfaces/installation-impl';\n\nexport async function createInstallationRequest(\n  { appConfig, heartbeatServiceProvider }: FirebaseInstallationsImpl,\n  { fid }: InProgressInstallationEntry\n): Promise<RegisteredInstallationEntry> {\n  const endpoint = getInstallationsEndpoint(appConfig);\n\n  const headers = getHeaders(appConfig);\n\n  // If heartbeat service exists, add the heartbeat string to the header.\n  const heartbeatService = heartbeatServiceProvider.getImmediate({\n    optional: true\n  });\n  if (heartbeatService) {\n    const heartbeatsHeader = await heartbeatService.getHeartbeatsHeader();\n    if (heartbeatsHeader) {\n      headers.append('x-firebase-client', heartbeatsHeader);\n    }\n  }\n\n  const body = {\n    fid,\n    authVersion: INTERNAL_AUTH_VERSION,\n    appId: appConfig.appId,\n    sdkVersion: PACKAGE_VERSION\n  };\n\n  const request: RequestInit = {\n    method: 'POST',\n    headers,\n    body: JSON.stringify(body)\n  };\n\n  const response = await retryIfServerError(() => fetch(endpoint, request));\n  if (response.ok) {\n    const responseValue: CreateInstallationResponse = await response.json();\n    const registeredInstallationEntry: RegisteredInstallationEntry = {\n      fid: responseValue.fid || fid,\n      registrationStatus: RequestStatus.COMPLETED,\n      refreshToken: responseValue.refreshToken,\n      authToken: extractAuthTokenInfoFromResponse(responseValue.authToken)\n    };\n    return registeredInstallationEntry;\n  } else {\n    throw await getErrorFromResponse('Create Installation', response);\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { GenerateAuthTokenResponse } from '../interfaces/api-response';\nimport {\n  CompletedAuthToken,\n  RegisteredInstallationEntry\n} from '../interfaces/installation-entry';\nimport { PACKAGE_VERSION } from '../util/constants';\nimport {\n  extractAuthTokenInfoFromResponse,\n  getErrorFromResponse,\n  getHeadersWithAuth,\n  getInstallationsEndpoint,\n  retryIfServerError\n} from './common';\nimport {\n  FirebaseInstallationsImpl,\n  AppConfig\n} from '../interfaces/installation-impl';\n\nexport async function generateAuthTokenRequest(\n  { appConfig, heartbeatServiceProvider }: FirebaseInstallationsImpl,\n  installationEntry: RegisteredInstallationEntry\n): Promise<CompletedAuthToken> {\n  const endpoint = getGenerateAuthTokenEndpoint(appConfig, installationEntry);\n\n  const headers = getHeadersWithAuth(appConfig, installationEntry);\n\n  // If heartbeat service exists, add the heartbeat string to the header.\n  const heartbeatService = heartbeatServiceProvider.getImmediate({\n    optional: true\n  });\n  if (heartbeatService) {\n    const heartbeatsHeader = await heartbeatService.getHeartbeatsHeader();\n    if (heartbeatsHeader) {\n      headers.append('x-firebase-client', heartbeatsHeader);\n    }\n  }\n\n  const body = {\n    installation: {\n      sdkVersion: PACKAGE_VERSION,\n      appId: appConfig.appId\n    }\n  };\n\n  const request: RequestInit = {\n    method: 'POST',\n    headers,\n    body: JSON.stringify(body)\n  };\n\n  const response = await retryIfServerError(() => fetch(endpoint, request));\n  if (response.ok) {\n    const responseValue: GenerateAuthTokenResponse = await response.json();\n    const completedAuthToken: CompletedAuthToken =\n      extractAuthTokenInfoFromResponse(responseValue);\n    return completedAuthToken;\n  } else {\n    throw await getErrorFromResponse('Generate Auth Token', response);\n  }\n}\n\nfunction getGenerateAuthTokenEndpoint(\n  appConfig: AppConfig,\n  { fid }: RegisteredInstallationEntry\n): string {\n  return `${getInstallationsEndpoint(appConfig)}/${fid}/authTokens:generate`;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { generateAuthTokenRequest } from '../functions/generate-auth-token-request';\nimport {\n  AppConfig,\n  FirebaseInstallationsImpl\n} from '../interfaces/installation-impl';\nimport {\n  AuthToken,\n  CompletedAuthToken,\n  InProgressAuthToken,\n  InstallationEntry,\n  RegisteredInstallationEntry,\n  RequestStatus\n} from '../interfaces/installation-entry';\nimport { PENDING_TIMEOUT_MS, TOKEN_EXPIRATION_BUFFER } from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode, isServerError } from '../util/errors';\nimport { sleep } from '../util/sleep';\nimport { remove, set, update } from './idb-manager';\n\n/**\n * Returns a valid authentication token for the installation. Generates a new\n * token if one doesn't exist, is expired or about to expire.\n *\n * Should only be called if the Firebase Installation is registered.\n */\nexport async function refreshAuthToken(\n  installations: FirebaseInstallationsImpl,\n  forceRefresh = false\n): Promise<CompletedAuthToken> {\n  let tokenPromise: Promise<CompletedAuthToken> | undefined;\n  const entry = await update(installations.appConfig, oldEntry => {\n    if (!isEntryRegistered(oldEntry)) {\n      throw ERROR_FACTORY.create(ErrorCode.NOT_REGISTERED);\n    }\n\n    const oldAuthToken = oldEntry.authToken;\n    if (!forceRefresh && isAuthTokenValid(oldAuthToken)) {\n      // There is a valid token in the DB.\n      return oldEntry;\n    } else if (oldAuthToken.requestStatus === RequestStatus.IN_PROGRESS) {\n      // There already is a token request in progress.\n      tokenPromise = waitUntilAuthTokenRequest(installations, forceRefresh);\n      return oldEntry;\n    } else {\n      // No token or token expired.\n      if (!navigator.onLine) {\n        throw ERROR_FACTORY.create(ErrorCode.APP_OFFLINE);\n      }\n\n      const inProgressEntry = makeAuthTokenRequestInProgressEntry(oldEntry);\n      tokenPromise = fetchAuthTokenFromServer(installations, inProgressEntry);\n      return inProgressEntry;\n    }\n  });\n\n  const authToken = tokenPromise\n    ? await tokenPromise\n    : (entry.authToken as CompletedAuthToken);\n  return authToken;\n}\n\n/**\n * Call only if FID is registered and Auth Token request is in progress.\n *\n * Waits until the current pending request finishes. If the request times out,\n * tries once in this thread as well.\n */\nasync function waitUntilAuthTokenRequest(\n  installations: FirebaseInstallationsImpl,\n  forceRefresh: boolean\n): Promise<CompletedAuthToken> {\n  // Unfortunately, there is no way of reliably observing when a value in\n  // IndexedDB changes (yet, see https://github.com/WICG/indexed-db-observers),\n  // so we need to poll.\n\n  let entry = await updateAuthTokenRequest(installations.appConfig);\n  while (entry.authToken.requestStatus === RequestStatus.IN_PROGRESS) {\n    // generateAuthToken still in progress.\n    await sleep(100);\n\n    entry = await updateAuthTokenRequest(installations.appConfig);\n  }\n\n  const authToken = entry.authToken;\n  if (authToken.requestStatus === RequestStatus.NOT_STARTED) {\n    // The request timed out or failed in a different call. Try again.\n    return refreshAuthToken(installations, forceRefresh);\n  } else {\n    return authToken;\n  }\n}\n\n/**\n * Called only if there is a GenerateAuthToken request in progress.\n *\n * Updates the InstallationEntry in the DB based on the status of the\n * GenerateAuthToken request.\n *\n * Returns the updated InstallationEntry.\n */\nfunction updateAuthTokenRequest(\n  appConfig: AppConfig\n): Promise<RegisteredInstallationEntry> {\n  return update(appConfig, oldEntry => {\n    if (!isEntryRegistered(oldEntry)) {\n      throw ERROR_FACTORY.create(ErrorCode.NOT_REGISTERED);\n    }\n\n    const oldAuthToken = oldEntry.authToken;\n    if (hasAuthTokenRequestTimedOut(oldAuthToken)) {\n      return {\n        ...oldEntry,\n        authToken: { requestStatus: RequestStatus.NOT_STARTED }\n      };\n    }\n\n    return oldEntry;\n  });\n}\n\nasync function fetchAuthTokenFromServer(\n  installations: FirebaseInstallationsImpl,\n  installationEntry: RegisteredInstallationEntry\n): Promise<CompletedAuthToken> {\n  try {\n    const authToken = await generateAuthTokenRequest(\n      installations,\n      installationEntry\n    );\n    const updatedInstallationEntry: RegisteredInstallationEntry = {\n      ...installationEntry,\n      authToken\n    };\n    await set(installations.appConfig, updatedInstallationEntry);\n    return authToken;\n  } catch (e) {\n    if (\n      isServerError(e) &&\n      (e.customData.serverCode === 401 || e.customData.serverCode === 404)\n    ) {\n      // Server returned a \"FID not found\" or a \"Invalid authentication\" error.\n      // Generate a new ID next time.\n      await remove(installations.appConfig);\n    } else {\n      const updatedInstallationEntry: RegisteredInstallationEntry = {\n        ...installationEntry,\n        authToken: { requestStatus: RequestStatus.NOT_STARTED }\n      };\n      await set(installations.appConfig, updatedInstallationEntry);\n    }\n    throw e;\n  }\n}\n\nfunction isEntryRegistered(\n  installationEntry: InstallationEntry | undefined\n): installationEntry is RegisteredInstallationEntry {\n  return (\n    installationEntry !== undefined &&\n    installationEntry.registrationStatus === RequestStatus.COMPLETED\n  );\n}\n\nfunction isAuthTokenValid(authToken: AuthToken): boolean {\n  return (\n    authToken.requestStatus === RequestStatus.COMPLETED &&\n    !isAuthTokenExpired(authToken)\n  );\n}\n\nfunction isAuthTokenExpired(authToken: CompletedAuthToken): boolean {\n  const now = Date.now();\n  return (\n    now < authToken.creationTime ||\n    authToken.creationTime + authToken.expiresIn < now + TOKEN_EXPIRATION_BUFFER\n  );\n}\n\n/** Returns an updated InstallationEntry with an InProgressAuthToken. */\nfunction makeAuthTokenRequestInProgressEntry(\n  oldEntry: RegisteredInstallationEntry\n): RegisteredInstallationEntry {\n  const inProgressAuthToken: InProgressAuthToken = {\n    requestStatus: RequestStatus.IN_PROGRESS,\n    requestTime: Date.now()\n  };\n  return {\n    ...oldEntry,\n    authToken: inProgressAuthToken\n  };\n}\n\nfunction hasAuthTokenRequestTimedOut(authToken: AuthToken): boolean {\n  return (\n    authToken.requestStatus === RequestStatus.IN_PROGRESS &&\n    authToken.requestTime + PENDING_TIMEOUT_MS < Date.now()\n  );\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getInstallationEntry } from '../helpers/get-installation-entry';\nimport { refreshAuthToken } from '../helpers/refresh-auth-token';\nimport { FirebaseInstallationsImpl } from '../interfaces/installation-impl';\nimport { Installations } from '../interfaces/public-types';\n\n/**\n * Returns a Firebase Installations auth token, identifying the current\n * Firebase Installation.\n * @param installations - The `Installations` instance.\n * @param forceRefresh - Force refresh regardless of token expiration.\n *\n * @public\n */\nexport async function getToken(\n  installations: Installations,\n  forceRefresh = false\n): Promise<string> {\n  const installationsImpl = installations as FirebaseInstallationsImpl;\n  await completeInstallationRegistration(installationsImpl);\n\n  // At this point we either have a Registered Installation in the DB, or we've\n  // already thrown an error.\n  const authToken = await refreshAuthToken(installationsImpl, forceRefresh);\n  return authToken.token;\n}\n\nasync function completeInstallationRegistration(\n  installations: FirebaseInstallationsImpl\n): Promise<void> {\n  const { registrationPromise } = await getInstallationEntry(installations);\n\n  if (registrationPromise) {\n    // A createInstallation request is in progress. Wait until it finishes.\n    await registrationPromise;\n  }\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseApp, FirebaseOptions } from '@firebase/app';\nimport { FirebaseError } from '@firebase/util';\nimport { AppConfig } from '../interfaces/installation-impl';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport function extractAppConfig(app: FirebaseApp): AppConfig {\n  if (!app || !app.options) {\n    throw getMissingValueError('App Configuration');\n  }\n\n  if (!app.name) {\n    throw getMissingValueError('App Name');\n  }\n\n  // Required app config keys\n  const configKeys: Array<keyof FirebaseOptions> = [\n    'projectId',\n    'apiKey',\n    'appId'\n  ];\n\n  for (const keyName of configKeys) {\n    if (!app.options[keyName]) {\n      throw getMissingValueError(keyName);\n    }\n  }\n\n  return {\n    appName: app.name,\n    projectId: app.options.projectId!,\n    apiKey: app.options.apiKey!,\n    appId: app.options.appId!\n  };\n}\n\nfunction getMissingValueError(valueName: string): FirebaseError {\n  return ERROR_FACTORY.create(ErrorCode.MISSING_APP_CONFIG_VALUES, {\n    valueName\n  });\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { _registerComponent, _getProvider } from '@firebase/app';\nimport {\n  Component,\n  ComponentType,\n  InstanceFactory,\n  ComponentContainer\n} from '@firebase/component';\nimport { getId, getToken } from '../api/index';\nimport { _FirebaseInstallationsInternal } from '../interfaces/public-types';\nimport { FirebaseInstallationsImpl } from '../interfaces/installation-impl';\nimport { extractAppConfig } from '../helpers/extract-app-config';\n\nconst INSTALLATIONS_NAME = 'installations';\nconst INSTALLATIONS_NAME_INTERNAL = 'installations-internal';\n\nconst publicFactory: InstanceFactory<'installations'> = (\n  container: ComponentContainer\n) => {\n  const app = container.getProvider('app').getImmediate();\n  // Throws if app isn't configured properly.\n  const appConfig = extractAppConfig(app);\n  const heartbeatServiceProvider = _getProvider(app, 'heartbeat');\n\n  const installationsImpl: FirebaseInstallationsImpl = {\n    app,\n    appConfig,\n    heartbeatServiceProvider,\n    _delete: () => Promise.resolve()\n  };\n  return installationsImpl;\n};\n\nconst internalFactory: InstanceFactory<'installations-internal'> = (\n  container: ComponentContainer\n) => {\n  const app = container.getProvider('app').getImmediate();\n  // Internal FIS instance relies on public FIS instance.\n  const installations = _getProvider(app, INSTALLATIONS_NAME).getImmediate();\n\n  const installationsInternal: _FirebaseInstallationsInternal = {\n    getId: () => getId(installations),\n    getToken: (forceRefresh?: boolean) => getToken(installations, forceRefresh)\n  };\n  return installationsInternal;\n};\n\nexport function registerInstallations(): void {\n  _registerComponent(\n    new Component(INSTALLATIONS_NAME, publicFactory, ComponentType.PUBLIC)\n  );\n  _registerComponent(\n    new Component(\n      INSTALLATIONS_NAME_INTERNAL,\n      internalFactory,\n      ComponentType.PRIVATE\n    )\n  );\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getInstallationEntry } from '../helpers/get-installation-entry';\nimport { refreshAuthToken } from '../helpers/refresh-auth-token';\nimport { FirebaseInstallationsImpl } from '../interfaces/installation-impl';\nimport { Installations } from '../interfaces/public-types';\n\n/**\n * Creates a Firebase Installation if there isn't one for the app and\n * returns the Installation ID.\n * @param installations - The `Installations` instance.\n *\n * @public\n */\nexport async function getId(installations: Installations): Promise<string> {\n  const installationsImpl = installations as FirebaseInstallationsImpl;\n  const { installationEntry, registrationPromise } = await getInstallationEntry(\n    installationsImpl\n  );\n\n  if (registrationPromise) {\n    registrationPromise.catch(console.error);\n  } else {\n    // If the installation is already registered, update the authentication\n    // token if needed.\n    refreshAuthToken(installationsImpl).catch(console.error);\n  }\n\n  return installationEntry.fid;\n}\n","/**\n * Firebase Installations\n *\n * @packageDocumentation\n */\n\n/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { registerInstallations } from './functions/config';\nimport { registerVersion } from '@firebase/app';\nimport { name, version } from '../package.json';\n\nexport * from './api';\nexport * from './interfaces/public-types';\n\nregisterInstallations();\nregisterVersion(name, version);\n// BUILD_TARGET will be replaced by values like esm5, esm2017, cjs5, etc during the compilation\nregisterVersion(name, version, '__BUILD_TARGET__');\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ErrorFactory } from '@firebase/util';\nimport { SERVICE, SERVICE_NAME } from '../constants';\n\nexport const enum ErrorCode {\n  TRACE_STARTED_BEFORE = 'trace started',\n  TRACE_STOPPED_BEFORE = 'trace stopped',\n  NONPOSITIVE_TRACE_START_TIME = 'nonpositive trace startTime',\n  NONPOSITIVE_TRACE_DURATION = 'nonpositive trace duration',\n  NO_WINDOW = 'no window',\n  NO_APP_ID = 'no app id',\n  NO_PROJECT_ID = 'no project id',\n  NO_API_KEY = 'no api key',\n  INVALID_CC_LOG = 'invalid cc log',\n  FB_NOT_DEFAULT = 'FB not default',\n  RC_NOT_OK = 'RC response not ok',\n  INVALID_ATTRIBUTE_NAME = 'invalid attribute name',\n  INVALID_ATTRIBUTE_VALUE = 'invalid attribute value',\n  INVALID_CUSTOM_METRIC_NAME = 'invalid custom metric name',\n  INVALID_STRING_MERGER_PARAMETER = 'invalid String merger input',\n  ALREADY_INITIALIZED = 'already initialized'\n}\n\nconst ERROR_DESCRIPTION_MAP: { readonly [key in ErrorCode]: string } = {\n  [ErrorCode.TRACE_STARTED_BEFORE]: 'Trace {$traceName} was started before.',\n  [ErrorCode.TRACE_STOPPED_BEFORE]: 'Trace {$traceName} is not running.',\n  [ErrorCode.NONPOSITIVE_TRACE_START_TIME]:\n    'Trace {$traceName} startTime should be positive.',\n  [ErrorCode.NONPOSITIVE_TRACE_DURATION]:\n    'Trace {$traceName} duration should be positive.',\n  [ErrorCode.NO_WINDOW]: 'Window is not available.',\n  [ErrorCode.NO_APP_ID]: 'App id is not available.',\n  [ErrorCode.NO_PROJECT_ID]: 'Project id is not available.',\n  [ErrorCode.NO_API_KEY]: 'Api key is not available.',\n  [ErrorCode.INVALID_CC_LOG]: 'Attempted to queue invalid cc event',\n  [ErrorCode.FB_NOT_DEFAULT]:\n    'Performance can only start when Firebase app instance is the default one.',\n  [ErrorCode.RC_NOT_OK]: 'RC response is not ok',\n  [ErrorCode.INVALID_ATTRIBUTE_NAME]:\n    'Attribute name {$attributeName} is invalid.',\n  [ErrorCode.INVALID_ATTRIBUTE_VALUE]:\n    'Attribute value {$attributeValue} is invalid.',\n  [ErrorCode.INVALID_CUSTOM_METRIC_NAME]:\n    'Custom metric name {$customMetricName} is invalid',\n  [ErrorCode.INVALID_STRING_MERGER_PARAMETER]:\n    'Input for String merger is invalid, contact support team to resolve.',\n  [ErrorCode.ALREADY_INITIALIZED]:\n    'initializePerformance() has already been called with ' +\n    'different options. To avoid this error, call initializePerformance() with the ' +\n    'same options as when it was originally called, or call getPerformance() to return the' +\n    ' already initialized instance.'\n};\n\ninterface ErrorParams {\n  [ErrorCode.TRACE_STARTED_BEFORE]: { traceName: string };\n  [ErrorCode.TRACE_STOPPED_BEFORE]: { traceName: string };\n  [ErrorCode.NONPOSITIVE_TRACE_START_TIME]: { traceName: string };\n  [ErrorCode.NONPOSITIVE_TRACE_DURATION]: { traceName: string };\n  [ErrorCode.INVALID_ATTRIBUTE_NAME]: { attributeName: string };\n  [ErrorCode.INVALID_ATTRIBUTE_VALUE]: { attributeValue: string };\n  [ErrorCode.INVALID_CUSTOM_METRIC_NAME]: { customMetricName: string };\n}\n\nexport const ERROR_FACTORY = new ErrorFactory<ErrorCode, ErrorParams>(\n  SERVICE,\n  SERVICE_NAME,\n  ERROR_DESCRIPTION_MAP\n);\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { version } from '../package.json';\n\nexport const SDK_VERSION = version;\n/** The prefix for start User Timing marks used for creating Traces. */\nexport const TRACE_START_MARK_PREFIX = 'FB-PERF-TRACE-START';\n/** The prefix for stop User Timing marks used for creating Traces. */\nexport const TRACE_STOP_MARK_PREFIX = 'FB-PERF-TRACE-STOP';\n/** The prefix for User Timing measure used for creating Traces. */\nexport const TRACE_MEASURE_PREFIX = 'FB-PERF-TRACE-MEASURE';\n/** The prefix for out of the box page load Trace name. */\nexport const OOB_TRACE_PAGE_LOAD_PREFIX = '_wt_';\n\nexport const FIRST_PAINT_COUNTER_NAME = '_fp';\n\nexport const FIRST_CONTENTFUL_PAINT_COUNTER_NAME = '_fcp';\n\nexport const FIRST_INPUT_DELAY_COUNTER_NAME = '_fid';\n\nexport const CONFIG_LOCAL_STORAGE_KEY = '@firebase/performance/config';\n\nexport const CONFIG_EXPIRY_LOCAL_STORAGE_KEY =\n  '@firebase/performance/configexpire';\n\nexport const SERVICE = 'performance';\nexport const SERVICE_NAME = 'Performance';\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Logger, LogLevel } from '@firebase/logger';\nimport { SERVICE_NAME } from '../constants';\n\nexport const consoleLogger = new Logger(SERVICE_NAME);\nconsoleLogger.logLevel = LogLevel.INFO;\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\nimport { isIndexedDBAvailable, areCookiesEnabled } from '@firebase/util';\nimport { consoleLogger } from '../utils/console_logger';\n\ndeclare global {\n  interface Window {\n    PerformanceObserver: typeof PerformanceObserver;\n    perfMetrics?: { onFirstInputDelay(fn: (fid: number) => void): void };\n  }\n}\n\nlet apiInstance: Api | undefined;\nlet windowInstance: Window | undefined;\n\nexport type EntryType =\n  | 'mark'\n  | 'measure'\n  | 'paint'\n  | 'resource'\n  | 'frame'\n  | 'navigation';\n\n/**\n * This class holds a reference to various browser related objects injected by\n * set methods.\n */\nexport class Api {\n  private readonly performance: Performance;\n  /** PreformanceObserver constructor function. */\n  private readonly PerformanceObserver: typeof PerformanceObserver;\n  private readonly windowLocation: Location;\n  readonly onFirstInputDelay?: (fn: (fid: number) => void) => void;\n  readonly localStorage?: Storage;\n  readonly document: Document;\n  readonly navigator: Navigator;\n\n  constructor(readonly window?: Window) {\n    if (!window) {\n      throw ERROR_FACTORY.create(ErrorCode.NO_WINDOW);\n    }\n    this.performance = window.performance;\n    this.PerformanceObserver = window.PerformanceObserver;\n    this.windowLocation = window.location;\n    this.navigator = window.navigator;\n    this.document = window.document;\n    if (this.navigator && this.navigator.cookieEnabled) {\n      // If user blocks cookies on the browser, accessing localStorage will\n      // throw an exception.\n      this.localStorage = window.localStorage;\n    }\n    if (window.perfMetrics && window.perfMetrics.onFirstInputDelay) {\n      this.onFirstInputDelay = window.perfMetrics.onFirstInputDelay;\n    }\n  }\n\n  getUrl(): string {\n    // Do not capture the string query part of url.\n    return this.windowLocation.href.split('?')[0];\n  }\n\n  mark(name: string): void {\n    if (!this.performance || !this.performance.mark) {\n      return;\n    }\n    this.performance.mark(name);\n  }\n\n  measure(measureName: string, mark1: string, mark2: string): void {\n    if (!this.performance || !this.performance.measure) {\n      return;\n    }\n    this.performance.measure(measureName, mark1, mark2);\n  }\n\n  getEntriesByType(type: EntryType): PerformanceEntry[] {\n    if (!this.performance || !this.performance.getEntriesByType) {\n      return [];\n    }\n    return this.performance.getEntriesByType(type);\n  }\n\n  getEntriesByName(name: string): PerformanceEntry[] {\n    if (!this.performance || !this.performance.getEntriesByName) {\n      return [];\n    }\n    return this.performance.getEntriesByName(name);\n  }\n\n  getTimeOrigin(): number {\n    // Polyfill the time origin with performance.timing.navigationStart.\n    return (\n      this.performance &&\n      (this.performance.timeOrigin || this.performance.timing.navigationStart)\n    );\n  }\n\n  requiredApisAvailable(): boolean {\n    if (!fetch || !Promise || !areCookiesEnabled()) {\n      consoleLogger.info(\n        'Firebase Performance cannot start if browser does not support fetch and Promise or cookie is disabled.'\n      );\n      return false;\n    }\n\n    if (!isIndexedDBAvailable()) {\n      consoleLogger.info('IndexedDB is not supported by current browswer');\n      return false;\n    }\n    return true;\n  }\n\n  setupObserver(\n    entryType: EntryType,\n    callback: (entry: PerformanceEntry) => void\n  ): void {\n    if (!this.PerformanceObserver) {\n      return;\n    }\n    const observer = new this.PerformanceObserver(list => {\n      for (const entry of list.getEntries()) {\n        // `entry` is a PerformanceEntry instance.\n        callback(entry);\n      }\n    });\n\n    // Start observing the entry types you care about.\n    observer.observe({ entryTypes: [entryType] });\n  }\n\n  static getInstance(): Api {\n    if (apiInstance === undefined) {\n      apiInstance = new Api(windowInstance);\n    }\n    return apiInstance;\n  }\n}\n\nexport function setupApi(window: Window): void {\n  windowInstance = window;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { _FirebaseInstallationsInternal } from '@firebase/installations';\n\nlet iid: string | undefined;\nlet authToken: string | undefined;\n\nexport function getIidPromise(\n  installationsService: _FirebaseInstallationsInternal\n): Promise<string> {\n  const iidPromise = installationsService.getId();\n  // eslint-disable-next-line @typescript-eslint/no-floating-promises\n  iidPromise.then((iidVal: string) => {\n    iid = iidVal;\n  });\n  return iidPromise;\n}\n\n// This method should be used after the iid is retrieved by getIidPromise method.\nexport function getIid(): string | undefined {\n  return iid;\n}\n\nexport function getAuthTokenPromise(\n  installationsService: _FirebaseInstallationsInternal\n): Promise<string> {\n  const authTokenPromise = installationsService.getToken();\n  // eslint-disable-next-line @typescript-eslint/no-floating-promises\n  authTokenPromise.then((authTokenVal: string) => {\n    authToken = authTokenVal;\n  });\n  return authTokenPromise;\n}\n\nexport function getAuthenticationToken(): string | undefined {\n  return authToken;\n}\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { mergeStrings } from '../utils/string_merger';\n\nlet settingsServiceInstance: SettingsService | undefined;\n\nexport class SettingsService {\n  // The variable which controls logging of automatic traces and HTTP/S network monitoring.\n  instrumentationEnabled = true;\n\n  // The variable which controls logging of custom traces.\n  dataCollectionEnabled = true;\n\n  // Configuration flags set through remote config.\n  loggingEnabled = false;\n  // Sampling rate between 0 and 1.\n  tracesSamplingRate = 1;\n  networkRequestsSamplingRate = 1;\n\n  // Address of logging service.\n  logEndPointUrl =\n    'https://firebaselogging.googleapis.com/v0cc/log?format=json_proto';\n  // Performance event transport endpoint URL which should be compatible with proto3.\n  // New Address for transport service, not configurable via Remote Config.\n  flTransportEndpointUrl = mergeStrings(\n    'hts/frbslgigp.ogepscmv/ieo/eaylg',\n    'tp:/ieaeogn-agolai.o/1frlglgc/o'\n  );\n\n  transportKey = mergeStrings('AzSC8r6ReiGqFMyfvgow', 'Iayx0u-XT3vksVM-pIV');\n\n  // Source type for performance event logs.\n  logSource = 462;\n\n  // Flags which control per session logging of traces and network requests.\n  logTraceAfterSampling = false;\n  logNetworkAfterSampling = false;\n\n  // TTL of config retrieved from remote config in hours.\n  configTimeToLive = 12;\n\n  getFlTransportFullUrl(): string {\n    return this.flTransportEndpointUrl.concat('?key=', this.transportKey);\n  }\n\n  static getInstance(): SettingsService {\n    if (settingsServiceInstance === undefined) {\n      settingsServiceInstance = new SettingsService();\n    }\n    return settingsServiceInstance;\n  }\n}\n","/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { CONSTANTS } from './constants';\nimport { getDefaults } from './defaults';\n\n/**\n * Returns navigator.userAgent string or '' if it's not defined.\n * @return user agent string\n */\nexport function getUA(): string {\n  if (\n    typeof navigator !== 'undefined' &&\n    typeof navigator['userAgent'] === 'string'\n  ) {\n    return navigator['userAgent'];\n  } else {\n    return '';\n  }\n}\n\n/**\n * Detect Cordova / PhoneGap / Ionic frameworks on a mobile device.\n *\n * Deliberately does not rely on checking `file://` URLs (as this fails PhoneGap\n * in the Ripple emulator) nor Cordova `onDeviceReady`, which would normally\n * wait for a callback.\n */\nexport function isMobileCordova(): boolean {\n  return (\n    typeof window !== 'undefined' &&\n    // @ts-ignore Setting up an broadly applicable index signature for Window\n    // just to deal with this case would probably be a bad idea.\n    !!(window['cordova'] || window['phonegap'] || window['PhoneGap']) &&\n    /ios|iphone|ipod|ipad|android|blackberry|iemobile/i.test(getUA())\n  );\n}\n\n/**\n * Detect Node.js.\n *\n * @return true if Node.js environment is detected or specified.\n */\n// Node detection logic from: https://github.com/iliakan/detect-node/\nexport function isNode(): boolean {\n  const forceEnvironment = getDefaults()?.forceEnvironment;\n  if (forceEnvironment === 'node') {\n    return true;\n  } else if (forceEnvironment === 'browser') {\n    return false;\n  }\n\n  try {\n    return (\n      Object.prototype.toString.call(global.process) === '[object process]'\n    );\n  } catch (e) {\n    return false;\n  }\n}\n\n/**\n * Detect Browser Environment\n */\nexport function isBrowser(): boolean {\n  return typeof self === 'object' && self.self === self;\n}\n\n/**\n * Detect browser extensions (Chrome and Firefox at least).\n */\ninterface BrowserRuntime {\n  id?: unknown;\n}\ndeclare const chrome: { runtime?: BrowserRuntime };\ndeclare const browser: { runtime?: BrowserRuntime };\nexport function isBrowserExtension(): boolean {\n  const runtime =\n    typeof chrome === 'object'\n      ? chrome.runtime\n      : typeof browser === 'object'\n      ? browser.runtime\n      : undefined;\n  return typeof runtime === 'object' && runtime.id !== undefined;\n}\n\n/**\n * Detect React Native.\n *\n * @return true if ReactNative environment is detected.\n */\nexport function isReactNative(): boolean {\n  return (\n    typeof navigator === 'object' && navigator['product'] === 'ReactNative'\n  );\n}\n\n/** Detects Electron apps. */\nexport function isElectron(): boolean {\n  return getUA().indexOf('Electron/') >= 0;\n}\n\n/** Detects Internet Explorer. */\nexport function isIE(): boolean {\n  const ua = getUA();\n  return ua.indexOf('MSIE ') >= 0 || ua.indexOf('Trident/') >= 0;\n}\n\n/** Detects Universal Windows Platform apps. */\nexport function isUWP(): boolean {\n  return getUA().indexOf('MSAppHost/') >= 0;\n}\n\n/**\n * Detect whether the current SDK build is the Node version.\n *\n * @return true if it's the Node SDK build.\n */\nexport function isNodeSdk(): boolean {\n  return CONSTANTS.NODE_CLIENT === true || CONSTANTS.NODE_ADMIN === true;\n}\n\n/** Returns true if we are running in Safari. */\nexport function isSafari(): boolean {\n  return (\n    !isNode() &&\n    navigator.userAgent.includes('Safari') &&\n    !navigator.userAgent.includes('Chrome')\n  );\n}\n\n/**\n * This method checks if indexedDB is supported by current browser/service worker context\n * @return true if indexedDB is supported by current browser/service worker context\n */\nexport function isIndexedDBAvailable(): boolean {\n  try {\n    return typeof indexedDB === 'object';\n  } catch (e) {\n    return false;\n  }\n}\n\n/**\n * This method validates browser/sw context for indexedDB by opening a dummy indexedDB database and reject\n * if errors occur during the database open operation.\n *\n * @throws exception if current browser/sw context can't run idb.open (ex: Safari iframe, Firefox\n * private browsing)\n */\nexport function validateIndexedDBOpenable(): Promise<boolean> {\n  return new Promise((resolve, reject) => {\n    try {\n      let preExist: boolean = true;\n      const DB_CHECK_NAME =\n        'validate-browser-context-for-indexeddb-analytics-module';\n      const request = self.indexedDB.open(DB_CHECK_NAME);\n      request.onsuccess = () => {\n        request.result.close();\n        // delete database only when it doesn't pre-exist\n        if (!preExist) {\n          self.indexedDB.deleteDatabase(DB_CHECK_NAME);\n        }\n        resolve(true);\n      };\n      request.onupgradeneeded = () => {\n        preExist = false;\n      };\n\n      request.onerror = () => {\n        reject(request.error?.message || '');\n      };\n    } catch (error) {\n      reject(error);\n    }\n  });\n}\n\n/**\n *\n * This method checks whether cookie is enabled within current browser\n * @return true if cookie is enabled within current browser\n */\nexport function areCookiesEnabled(): boolean {\n  if (typeof navigator === 'undefined' || !navigator.cookieEnabled) {\n    return false;\n  }\n  return true;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ERROR_FACTORY, ErrorCode } from './errors';\n\nexport function mergeStrings(part1: string, part2: string): string {\n  const sizeDiff = part1.length - part2.length;\n  if (sizeDiff < 0 || sizeDiff > 1) {\n    throw ERROR_FACTORY.create(ErrorCode.INVALID_STRING_MERGER_PARAMETER);\n  }\n\n  const resultArray = [];\n  for (let i = 0; i < part1.length; i++) {\n    resultArray.push(part1.charAt(i));\n    if (part2.length > i) {\n      resultArray.push(part2.charAt(i));\n    }\n  }\n\n  return resultArray.join('');\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Api } from '../services/api_service';\n\n// The values and orders of the following enums should not be changed.\nconst enum ServiceWorkerStatus {\n  UNKNOWN = 0,\n  UNSUPPORTED = 1,\n  CONTROLLED = 2,\n  UNCONTROLLED = 3\n}\n\nexport enum VisibilityState {\n  UNKNOWN = 0,\n  VISIBLE = 1,\n  HIDDEN = 2\n}\n\nconst enum EffectiveConnectionType {\n  UNKNOWN = 0,\n  CONNECTION_SLOW_2G = 1,\n  CONNECTION_2G = 2,\n  CONNECTION_3G = 3,\n  CONNECTION_4G = 4\n}\n\n/**\n * NetworkInformation\n *\n * ref: https://developer.mozilla.org/en-US/docs/Web/API/NetworkInformation\n */\ninterface NetworkInformationWithEffectiveType extends NetworkInformation {\n  // `effectiveType` is an experimental property and not included in\n  // TypeScript's typings for the native NetworkInformation interface\n  readonly effectiveType?: 'slow-2g' | '2g' | '3g' | '4g';\n}\n\ninterface NavigatorWithConnection extends Navigator {\n  readonly connection: NetworkInformationWithEffectiveType;\n}\n\nconst RESERVED_ATTRIBUTE_PREFIXES = ['firebase_', 'google_', 'ga_'];\nconst ATTRIBUTE_FORMAT_REGEX = new RegExp('^[a-zA-Z]\\\\w*$');\nconst MAX_ATTRIBUTE_NAME_LENGTH = 40;\nconst MAX_ATTRIBUTE_VALUE_LENGTH = 100;\n\nexport function getServiceWorkerStatus(): ServiceWorkerStatus {\n  const navigator = Api.getInstance().navigator;\n  if (navigator?.serviceWorker) {\n    if (navigator.serviceWorker.controller) {\n      return ServiceWorkerStatus.CONTROLLED;\n    } else {\n      return ServiceWorkerStatus.UNCONTROLLED;\n    }\n  } else {\n    return ServiceWorkerStatus.UNSUPPORTED;\n  }\n}\n\nexport function getVisibilityState(): VisibilityState {\n  const document = Api.getInstance().document;\n  const visibilityState = document.visibilityState;\n  switch (visibilityState) {\n    case 'visible':\n      return VisibilityState.VISIBLE;\n    case 'hidden':\n      return VisibilityState.HIDDEN;\n    default:\n      return VisibilityState.UNKNOWN;\n  }\n}\n\nexport function getEffectiveConnectionType(): EffectiveConnectionType {\n  const navigator = Api.getInstance().navigator;\n  const navigatorConnection = (navigator as NavigatorWithConnection).connection;\n  const effectiveType =\n    navigatorConnection && navigatorConnection.effectiveType;\n  switch (effectiveType) {\n    case 'slow-2g':\n      return EffectiveConnectionType.CONNECTION_SLOW_2G;\n    case '2g':\n      return EffectiveConnectionType.CONNECTION_2G;\n    case '3g':\n      return EffectiveConnectionType.CONNECTION_3G;\n    case '4g':\n      return EffectiveConnectionType.CONNECTION_4G;\n    default:\n      return EffectiveConnectionType.UNKNOWN;\n  }\n}\n\nexport function isValidCustomAttributeName(name: string): boolean {\n  if (name.length === 0 || name.length > MAX_ATTRIBUTE_NAME_LENGTH) {\n    return false;\n  }\n  const matchesReservedPrefix = RESERVED_ATTRIBUTE_PREFIXES.some(prefix =>\n    name.startsWith(prefix)\n  );\n  return !matchesReservedPrefix && !!name.match(ATTRIBUTE_FORMAT_REGEX);\n}\n\nexport function isValidCustomAttributeValue(value: string): boolean {\n  return value.length !== 0 && value.length <= MAX_ATTRIBUTE_VALUE_LENGTH;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { ERROR_FACTORY, ErrorCode } from './errors';\nimport { FirebaseApp } from '@firebase/app';\n\nexport function getAppId(firebaseApp: FirebaseApp): string {\n  const appId = firebaseApp.options?.appId;\n  if (!appId) {\n    throw ERROR_FACTORY.create(ErrorCode.NO_APP_ID);\n  }\n  return appId;\n}\n\nexport function getProjectId(firebaseApp: FirebaseApp): string {\n  const projectId = firebaseApp.options?.projectId;\n  if (!projectId) {\n    throw ERROR_FACTORY.create(ErrorCode.NO_PROJECT_ID);\n  }\n  return projectId;\n}\n\nexport function getApiKey(firebaseApp: FirebaseApp): string {\n  const apiKey = firebaseApp.options?.apiKey;\n  if (!apiKey) {\n    throw ERROR_FACTORY.create(ErrorCode.NO_API_KEY);\n  }\n  return apiKey;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n  CONFIG_EXPIRY_LOCAL_STORAGE_KEY,\n  CONFIG_LOCAL_STORAGE_KEY,\n  SDK_VERSION\n} from '../constants';\nimport { consoleLogger } from '../utils/console_logger';\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\n\nimport { Api } from './api_service';\nimport { getAuthTokenPromise } from './iid_service';\nimport { SettingsService } from './settings_service';\nimport { PerformanceController } from '../controllers/perf';\nimport { getProjectId, getApiKey, getAppId } from '../utils/app_utils';\n\nconst REMOTE_CONFIG_SDK_VERSION = '0.0.1';\n\ninterface SecondaryConfig {\n  loggingEnabled?: boolean;\n  logSource?: number;\n  logEndPointUrl?: string;\n  transportKey?: string;\n  tracesSamplingRate?: number;\n  networkRequestsSamplingRate?: number;\n}\n\n// These values will be used if the remote config object is successfully\n// retrieved, but the template does not have these fields.\nconst DEFAULT_CONFIGS: SecondaryConfig = {\n  loggingEnabled: true\n};\n\n/* eslint-disable camelcase */\ninterface RemoteConfigTemplate {\n  fpr_enabled?: string;\n  fpr_log_source?: string;\n  fpr_log_endpoint_url?: string;\n  fpr_log_transport_key?: string;\n  fpr_log_transport_web_percent?: string;\n  fpr_vc_network_request_sampling_rate?: string;\n  fpr_vc_trace_sampling_rate?: string;\n  fpr_vc_session_sampling_rate?: string;\n}\n/* eslint-enable camelcase */\n\ninterface RemoteConfigResponse {\n  entries?: RemoteConfigTemplate;\n  state?: string;\n}\n\nconst FIS_AUTH_PREFIX = 'FIREBASE_INSTALLATIONS_AUTH';\n\nexport function getConfig(\n  performanceController: PerformanceController,\n  iid: string\n): Promise<void> {\n  const config = getStoredConfig();\n  if (config) {\n    processConfig(config);\n    return Promise.resolve();\n  }\n\n  return getRemoteConfig(performanceController, iid)\n    .then(processConfig)\n    .then(\n      config => storeConfig(config),\n      /** Do nothing for error, use defaults set in settings service. */\n      () => {}\n    );\n}\n\nfunction getStoredConfig(): RemoteConfigResponse | undefined {\n  const localStorage = Api.getInstance().localStorage;\n  if (!localStorage) {\n    return;\n  }\n  const expiryString = localStorage.getItem(CONFIG_EXPIRY_LOCAL_STORAGE_KEY);\n  if (!expiryString || !configValid(expiryString)) {\n    return;\n  }\n\n  const configStringified = localStorage.getItem(CONFIG_LOCAL_STORAGE_KEY);\n  if (!configStringified) {\n    return;\n  }\n  try {\n    const configResponse: RemoteConfigResponse = JSON.parse(configStringified);\n    return configResponse;\n  } catch {\n    return;\n  }\n}\n\nfunction storeConfig(config: RemoteConfigResponse | undefined): void {\n  const localStorage = Api.getInstance().localStorage;\n  if (!config || !localStorage) {\n    return;\n  }\n\n  localStorage.setItem(CONFIG_LOCAL_STORAGE_KEY, JSON.stringify(config));\n  localStorage.setItem(\n    CONFIG_EXPIRY_LOCAL_STORAGE_KEY,\n    String(\n      Date.now() +\n        SettingsService.getInstance().configTimeToLive * 60 * 60 * 1000\n    )\n  );\n}\n\nconst COULD_NOT_GET_CONFIG_MSG =\n  'Could not fetch config, will use default configs';\n\nfunction getRemoteConfig(\n  performanceController: PerformanceController,\n  iid: string\n): Promise<RemoteConfigResponse | undefined> {\n  // Perf needs auth token only to retrieve remote config.\n  return getAuthTokenPromise(performanceController.installations)\n    .then(authToken => {\n      const projectId = getProjectId(performanceController.app);\n      const apiKey = getApiKey(performanceController.app);\n      const configEndPoint = `https://firebaseremoteconfig.googleapis.com/v1/projects/${projectId}/namespaces/fireperf:fetch?key=${apiKey}`;\n      const request = new Request(configEndPoint, {\n        method: 'POST',\n        headers: { Authorization: `${FIS_AUTH_PREFIX} ${authToken}` },\n        /* eslint-disable camelcase */\n        body: JSON.stringify({\n          app_instance_id: iid,\n          app_instance_id_token: authToken,\n          app_id: getAppId(performanceController.app),\n          app_version: SDK_VERSION,\n          sdk_version: REMOTE_CONFIG_SDK_VERSION\n        })\n        /* eslint-enable camelcase */\n      });\n      return fetch(request).then(response => {\n        if (response.ok) {\n          return response.json() as RemoteConfigResponse;\n        }\n        // In case response is not ok. This will be caught by catch.\n        throw ERROR_FACTORY.create(ErrorCode.RC_NOT_OK);\n      });\n    })\n    .catch(() => {\n      consoleLogger.info(COULD_NOT_GET_CONFIG_MSG);\n      return undefined;\n    });\n}\n\n/**\n * Processes config coming either from calling RC or from local storage.\n * This method only runs if call is successful or config in storage\n * is valid.\n */\nfunction processConfig(\n  config?: RemoteConfigResponse\n): RemoteConfigResponse | undefined {\n  if (!config) {\n    return config;\n  }\n  const settingsServiceInstance = SettingsService.getInstance();\n  const entries = config.entries || {};\n  if (entries.fpr_enabled !== undefined) {\n    // TODO: Change the assignment of loggingEnabled once the received type is\n    // known.\n    settingsServiceInstance.loggingEnabled =\n      String(entries.fpr_enabled) === 'true';\n  } else if (DEFAULT_CONFIGS.loggingEnabled !== undefined) {\n    // Config retrieved successfully, but there is no fpr_enabled in template.\n    // Use secondary configs value.\n    settingsServiceInstance.loggingEnabled = DEFAULT_CONFIGS.loggingEnabled;\n  }\n  if (entries.fpr_log_source) {\n    settingsServiceInstance.logSource = Number(entries.fpr_log_source);\n  } else if (DEFAULT_CONFIGS.logSource) {\n    settingsServiceInstance.logSource = DEFAULT_CONFIGS.logSource;\n  }\n\n  if (entries.fpr_log_endpoint_url) {\n    settingsServiceInstance.logEndPointUrl = entries.fpr_log_endpoint_url;\n  } else if (DEFAULT_CONFIGS.logEndPointUrl) {\n    settingsServiceInstance.logEndPointUrl = DEFAULT_CONFIGS.logEndPointUrl;\n  }\n\n  // Key from Remote Config has to be non-empty string, otherwsie use local value.\n  if (entries.fpr_log_transport_key) {\n    settingsServiceInstance.transportKey = entries.fpr_log_transport_key;\n  } else if (DEFAULT_CONFIGS.transportKey) {\n    settingsServiceInstance.transportKey = DEFAULT_CONFIGS.transportKey;\n  }\n\n  if (entries.fpr_vc_network_request_sampling_rate !== undefined) {\n    settingsServiceInstance.networkRequestsSamplingRate = Number(\n      entries.fpr_vc_network_request_sampling_rate\n    );\n  } else if (DEFAULT_CONFIGS.networkRequestsSamplingRate !== undefined) {\n    settingsServiceInstance.networkRequestsSamplingRate =\n      DEFAULT_CONFIGS.networkRequestsSamplingRate;\n  }\n  if (entries.fpr_vc_trace_sampling_rate !== undefined) {\n    settingsServiceInstance.tracesSamplingRate = Number(\n      entries.fpr_vc_trace_sampling_rate\n    );\n  } else if (DEFAULT_CONFIGS.tracesSamplingRate !== undefined) {\n    settingsServiceInstance.tracesSamplingRate =\n      DEFAULT_CONFIGS.tracesSamplingRate;\n  }\n  // Set the per session trace and network logging flags.\n  settingsServiceInstance.logTraceAfterSampling = shouldLogAfterSampling(\n    settingsServiceInstance.tracesSamplingRate\n  );\n  settingsServiceInstance.logNetworkAfterSampling = shouldLogAfterSampling(\n    settingsServiceInstance.networkRequestsSamplingRate\n  );\n  return config;\n}\n\nfunction configValid(expiry: string): boolean {\n  return Number(expiry) > Date.now();\n}\n\nfunction shouldLogAfterSampling(samplingRate: number): boolean {\n  return Math.random() <= samplingRate;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getIidPromise } from './iid_service';\nimport { getConfig } from './remote_config_service';\nimport { Api } from './api_service';\nimport { PerformanceController } from '../controllers/perf';\n\nconst enum InitializationStatus {\n  notInitialized = 1,\n  initializationPending,\n  initialized\n}\n\nlet initializationStatus = InitializationStatus.notInitialized;\n\nlet initializationPromise: Promise<void> | undefined;\n\nexport function getInitializationPromise(\n  performanceController: PerformanceController\n): Promise<void> {\n  initializationStatus = InitializationStatus.initializationPending;\n\n  initializationPromise =\n    initializationPromise || initializePerf(performanceController);\n\n  return initializationPromise;\n}\n\nexport function isPerfInitialized(): boolean {\n  return initializationStatus === InitializationStatus.initialized;\n}\n\nfunction initializePerf(\n  performanceController: PerformanceController\n): Promise<void> {\n  return getDocumentReadyComplete()\n    .then(() => getIidPromise(performanceController.installations))\n    .then(iid => getConfig(performanceController, iid))\n    .then(\n      () => changeInitializationStatus(),\n      () => changeInitializationStatus()\n    );\n}\n\n/**\n * Returns a promise which resolves whenever the document readystate is complete or\n * immediately if it is called after page load complete.\n */\nfunction getDocumentReadyComplete(): Promise<void> {\n  const document = Api.getInstance().document;\n  return new Promise(resolve => {\n    if (document && document.readyState !== 'complete') {\n      const handler = (): void => {\n        if (document.readyState === 'complete') {\n          document.removeEventListener('readystatechange', handler);\n          resolve();\n        }\n      };\n      document.addEventListener('readystatechange', handler);\n    } else {\n      resolve();\n    }\n  });\n}\n\nfunction changeInitializationStatus(): void {\n  initializationStatus = InitializationStatus.initialized;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { SettingsService } from './settings_service';\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\nimport { consoleLogger } from '../utils/console_logger';\n\nconst DEFAULT_SEND_INTERVAL_MS = 10 * 1000;\nconst INITIAL_SEND_TIME_DELAY_MS = 5.5 * 1000;\n// If end point does not work, the call will be tried for these many times.\nconst DEFAULT_REMAINING_TRIES = 3;\nconst MAX_EVENT_COUNT_PER_REQUEST = 1000;\nlet remainingTries = DEFAULT_REMAINING_TRIES;\n\ninterface LogResponseDetails {\n  responseAction?: string;\n}\n\ninterface BatchEvent {\n  message: string;\n  eventTime: number;\n}\n\n/* eslint-disable camelcase */\n// CC/Fl accepted log format.\ninterface TransportBatchLogFormat {\n  request_time_ms: string;\n  client_info: ClientInfo;\n  log_source: number;\n  log_event: Log[];\n}\n\ninterface ClientInfo {\n  client_type: number;\n  js_client_info: {};\n}\n\ninterface Log {\n  source_extension_json_proto3: string;\n  event_time_ms: string;\n}\n/* eslint-enable camelcase */\n\nlet queue: BatchEvent[] = [];\n\nlet isTransportSetup: boolean = false;\n\nexport function setupTransportService(): void {\n  if (!isTransportSetup) {\n    processQueue(INITIAL_SEND_TIME_DELAY_MS);\n    isTransportSetup = true;\n  }\n}\n\n/**\n * Utilized by testing to clean up message queue and un-initialize transport service.\n */\nexport function resetTransportService(): void {\n  isTransportSetup = false;\n  queue = [];\n}\n\nfunction processQueue(timeOffset: number): void {\n  setTimeout(() => {\n    // If there is no remainingTries left, stop retrying.\n    if (remainingTries === 0) {\n      return;\n    }\n\n    // If there are no events to process, wait for DEFAULT_SEND_INTERVAL_MS and try again.\n    if (!queue.length) {\n      return processQueue(DEFAULT_SEND_INTERVAL_MS);\n    }\n\n    dispatchQueueEvents();\n  }, timeOffset);\n}\n\nfunction dispatchQueueEvents(): void {\n  // Extract events up to the maximum cap of single logRequest from top of \"official queue\".\n  // The staged events will be used for current logRequest attempt, remaining events will be kept\n  // for next attempt.\n  const staged = queue.splice(0, MAX_EVENT_COUNT_PER_REQUEST);\n\n  /* eslint-disable camelcase */\n  // We will pass the JSON serialized event to the backend.\n  const log_event: Log[] = staged.map(evt => ({\n    source_extension_json_proto3: evt.message,\n    event_time_ms: String(evt.eventTime)\n  }));\n\n  const data: TransportBatchLogFormat = {\n    request_time_ms: String(Date.now()),\n    client_info: {\n      client_type: 1, // 1 is JS\n      js_client_info: {}\n    },\n    log_source: SettingsService.getInstance().logSource,\n    log_event\n  };\n  /* eslint-enable camelcase */\n\n  sendEventsToFl(data, staged).catch(() => {\n    // If the request fails for some reason, add the events that were attempted\n    // back to the primary queue to retry later.\n    queue = [...staged, ...queue];\n    remainingTries--;\n    consoleLogger.info(`Tries left: ${remainingTries}.`);\n    processQueue(DEFAULT_SEND_INTERVAL_MS);\n  });\n}\n\nfunction sendEventsToFl(\n  data: TransportBatchLogFormat,\n  staged: BatchEvent[]\n): Promise<void> {\n  return postToFlEndpoint(data)\n    .then(res => {\n      if (!res.ok) {\n        consoleLogger.info('Call to Firebase backend failed.');\n      }\n      return res.json();\n    })\n    .then(res => {\n      // Find the next call wait time from the response.\n      const transportWait = Number(res.nextRequestWaitMillis);\n      let requestOffset = DEFAULT_SEND_INTERVAL_MS;\n      if (!isNaN(transportWait)) {\n        requestOffset = Math.max(transportWait, requestOffset);\n      }\n\n      // Delete request if response include RESPONSE_ACTION_UNKNOWN or DELETE_REQUEST action.\n      // Otherwise, retry request using normal scheduling if response include RETRY_REQUEST_LATER.\n      const logResponseDetails: LogResponseDetails[] = res.logResponseDetails;\n      if (\n        Array.isArray(logResponseDetails) &&\n        logResponseDetails.length > 0 &&\n        logResponseDetails[0].responseAction === 'RETRY_REQUEST_LATER'\n      ) {\n        queue = [...staged, ...queue];\n        consoleLogger.info(`Retry transport request later.`);\n      }\n\n      remainingTries = DEFAULT_REMAINING_TRIES;\n      // Schedule the next process.\n      processQueue(requestOffset);\n    });\n}\n\nfunction postToFlEndpoint(data: TransportBatchLogFormat): Promise<Response> {\n  const flTransportFullUrl =\n    SettingsService.getInstance().getFlTransportFullUrl();\n  return fetch(flTransportFullUrl, {\n    method: 'POST',\n    body: JSON.stringify(data)\n  });\n}\n\nfunction addToQueue(evt: BatchEvent): void {\n  if (!evt.eventTime || !evt.message) {\n    throw ERROR_FACTORY.create(ErrorCode.INVALID_CC_LOG);\n  }\n  // Add the new event to the queue.\n  queue = [...queue, evt];\n}\n\n/** Log handler for cc service to send the performance logs to the server. */\nexport function transportHandler(\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  serializer: (...args: any[]) => string\n): (...args: unknown[]) => void {\n  return (...args) => {\n    const message = serializer(...args);\n    addToQueue({\n      message,\n      eventTime: Date.now()\n    });\n  };\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getIid } from './iid_service';\nimport { NetworkRequest } from '../resources/network_request';\nimport { Trace } from '../resources/trace';\nimport { Api } from './api_service';\nimport { SettingsService } from './settings_service';\nimport {\n  getServiceWorkerStatus,\n  getVisibilityState,\n  VisibilityState,\n  getEffectiveConnectionType\n} from '../utils/attributes_utils';\nimport {\n  isPerfInitialized,\n  getInitializationPromise\n} from './initialization_service';\nimport { transportHandler } from './transport_service';\nimport { SDK_VERSION } from '../constants';\nimport { FirebaseApp } from '@firebase/app';\nimport { getAppId } from '../utils/app_utils';\n\nconst enum ResourceType {\n  NetworkRequest,\n  Trace\n}\n\n/* eslint-disable camelcase */\ninterface ApplicationInfo {\n  google_app_id: string;\n  app_instance_id?: string;\n  web_app_info: WebAppInfo;\n  application_process_state: number;\n}\n\ninterface WebAppInfo {\n  sdk_version: string;\n  page_url: string;\n  service_worker_status: number;\n  visibility_state: number;\n  effective_connection_type: number;\n}\n\ninterface PerfNetworkLog {\n  application_info: ApplicationInfo;\n  network_request_metric: NetworkRequestMetric;\n}\n\ninterface PerfTraceLog {\n  application_info: ApplicationInfo;\n  trace_metric: TraceMetric;\n}\n\ninterface NetworkRequestMetric {\n  url: string;\n  http_method: number;\n  http_response_code: number;\n  response_payload_bytes?: number;\n  client_start_time_us?: number;\n  time_to_response_initiated_us?: number;\n  time_to_response_completed_us?: number;\n}\n\ninterface TraceMetric {\n  name: string;\n  is_auto: boolean;\n  client_start_time_us: number;\n  duration_us: number;\n  counters?: { [key: string]: number };\n  custom_attributes?: { [key: string]: string };\n}\n\n/* eslint-enble camelcase */\n\nlet logger: (\n  resource: NetworkRequest | Trace,\n  resourceType: ResourceType\n) => void | undefined;\n// This method is not called before initialization.\nfunction sendLog(\n  resource: NetworkRequest | Trace,\n  resourceType: ResourceType\n): void {\n  if (!logger) {\n    logger = transportHandler(serializer);\n  }\n  logger(resource, resourceType);\n}\n\nexport function logTrace(trace: Trace): void {\n  const settingsService = SettingsService.getInstance();\n  // Do not log if trace is auto generated and instrumentation is disabled.\n  if (!settingsService.instrumentationEnabled && trace.isAuto) {\n    return;\n  }\n  // Do not log if trace is custom and data collection is disabled.\n  if (!settingsService.dataCollectionEnabled && !trace.isAuto) {\n    return;\n  }\n  // Do not log if required apis are not available.\n  if (!Api.getInstance().requiredApisAvailable()) {\n    return;\n  }\n\n  // Only log the page load auto traces if page is visible.\n  if (trace.isAuto && getVisibilityState() !== VisibilityState.VISIBLE) {\n    return;\n  }\n\n  if (isPerfInitialized()) {\n    sendTraceLog(trace);\n  } else {\n    // Custom traces can be used before the initialization but logging\n    // should wait until after.\n    getInitializationPromise(trace.performanceController).then(\n      () => sendTraceLog(trace),\n      () => sendTraceLog(trace)\n    );\n  }\n}\n\nfunction sendTraceLog(trace: Trace): void {\n  if (!getIid()) {\n    return;\n  }\n\n  const settingsService = SettingsService.getInstance();\n  if (\n    !settingsService.loggingEnabled ||\n    !settingsService.logTraceAfterSampling\n  ) {\n    return;\n  }\n\n  setTimeout(() => sendLog(trace, ResourceType.Trace), 0);\n}\n\nexport function logNetworkRequest(networkRequest: NetworkRequest): void {\n  const settingsService = SettingsService.getInstance();\n  // Do not log network requests if instrumentation is disabled.\n  if (!settingsService.instrumentationEnabled) {\n    return;\n  }\n\n  // Do not log the js sdk's call to transport service domain to avoid unnecessary cycle.\n  // Need to blacklist both old and new endpoints to avoid migration gap.\n  const networkRequestUrl = networkRequest.url;\n\n  // Blacklist old log endpoint and new transport endpoint.\n  // Because Performance SDK doesn't instrument requests sent from SDK itself.\n  const logEndpointUrl = settingsService.logEndPointUrl.split('?')[0];\n  const flEndpointUrl = settingsService.flTransportEndpointUrl.split('?')[0];\n  if (\n    networkRequestUrl === logEndpointUrl ||\n    networkRequestUrl === flEndpointUrl\n  ) {\n    return;\n  }\n\n  if (\n    !settingsService.loggingEnabled ||\n    !settingsService.logNetworkAfterSampling\n  ) {\n    return;\n  }\n\n  setTimeout(() => sendLog(networkRequest, ResourceType.NetworkRequest), 0);\n}\n\nfunction serializer(\n  resource: NetworkRequest | Trace,\n  resourceType: ResourceType\n): string {\n  if (resourceType === ResourceType.NetworkRequest) {\n    return serializeNetworkRequest(resource as NetworkRequest);\n  }\n  return serializeTrace(resource as Trace);\n}\n\nfunction serializeNetworkRequest(networkRequest: NetworkRequest): string {\n  const networkRequestMetric: NetworkRequestMetric = {\n    url: networkRequest.url,\n    http_method: networkRequest.httpMethod || 0,\n    http_response_code: 200,\n    response_payload_bytes: networkRequest.responsePayloadBytes,\n    client_start_time_us: networkRequest.startTimeUs,\n    time_to_response_initiated_us: networkRequest.timeToResponseInitiatedUs,\n    time_to_response_completed_us: networkRequest.timeToResponseCompletedUs\n  };\n  const perfMetric: PerfNetworkLog = {\n    application_info: getApplicationInfo(\n      networkRequest.performanceController.app\n    ),\n    network_request_metric: networkRequestMetric\n  };\n  return JSON.stringify(perfMetric);\n}\n\nfunction serializeTrace(trace: Trace): string {\n  const traceMetric: TraceMetric = {\n    name: trace.name,\n    is_auto: trace.isAuto,\n    client_start_time_us: trace.startTimeUs,\n    duration_us: trace.durationUs\n  };\n\n  if (Object.keys(trace.counters).length !== 0) {\n    traceMetric.counters = trace.counters;\n  }\n  const customAttributes = trace.getAttributes();\n  if (Object.keys(customAttributes).length !== 0) {\n    traceMetric.custom_attributes = customAttributes;\n  }\n\n  const perfMetric: PerfTraceLog = {\n    application_info: getApplicationInfo(trace.performanceController.app),\n    trace_metric: traceMetric\n  };\n  return JSON.stringify(perfMetric);\n}\n\nfunction getApplicationInfo(firebaseApp: FirebaseApp): ApplicationInfo {\n  return {\n    google_app_id: getAppId(firebaseApp),\n    app_instance_id: getIid(),\n    web_app_info: {\n      sdk_version: SDK_VERSION,\n      page_url: Api.getInstance().getUrl(),\n      service_worker_status: getServiceWorkerStatus(),\n      visibility_state: getVisibilityState(),\n      effective_connection_type: getEffectiveConnectionType()\n    },\n    application_process_state: 0\n  };\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n  FIRST_PAINT_COUNTER_NAME,\n  FIRST_CONTENTFUL_PAINT_COUNTER_NAME,\n  FIRST_INPUT_DELAY_COUNTER_NAME,\n  OOB_TRACE_PAGE_LOAD_PREFIX\n} from '../constants';\nimport { consoleLogger } from '../utils/console_logger';\n\nconst MAX_METRIC_NAME_LENGTH = 100;\nconst RESERVED_AUTO_PREFIX = '_';\nconst oobMetrics = [\n  FIRST_PAINT_COUNTER_NAME,\n  FIRST_CONTENTFUL_PAINT_COUNTER_NAME,\n  FIRST_INPUT_DELAY_COUNTER_NAME\n];\n\n/**\n * Returns true if the metric is custom and does not start with reserved prefix, or if\n * the metric is one of out of the box page load trace metrics.\n */\nexport function isValidMetricName(name: string, traceName?: string): boolean {\n  if (name.length === 0 || name.length > MAX_METRIC_NAME_LENGTH) {\n    return false;\n  }\n  return (\n    (traceName &&\n      traceName.startsWith(OOB_TRACE_PAGE_LOAD_PREFIX) &&\n      oobMetrics.indexOf(name) > -1) ||\n    !name.startsWith(RESERVED_AUTO_PREFIX)\n  );\n}\n\n/**\n * Converts the provided value to an integer value to be used in case of a metric.\n * @param providedValue Provided number value of the metric that needs to be converted to an integer.\n *\n * @returns Converted integer number to be set for the metric.\n */\nexport function convertMetricValueToInteger(providedValue: number): number {\n  const valueAsInteger: number = Math.floor(providedValue);\n  if (valueAsInteger < providedValue) {\n    consoleLogger.info(\n      `Metric value should be an Integer, setting the value as : ${valueAsInteger}.`\n    );\n  }\n  return valueAsInteger;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n  TRACE_START_MARK_PREFIX,\n  TRACE_STOP_MARK_PREFIX,\n  TRACE_MEASURE_PREFIX,\n  OOB_TRACE_PAGE_LOAD_PREFIX,\n  FIRST_PAINT_COUNTER_NAME,\n  FIRST_CONTENTFUL_PAINT_COUNTER_NAME,\n  FIRST_INPUT_DELAY_COUNTER_NAME\n} from '../constants';\nimport { Api } from '../services/api_service';\nimport { logTrace } from '../services/perf_logger';\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\nimport {\n  isValidCustomAttributeName,\n  isValidCustomAttributeValue\n} from '../utils/attributes_utils';\nimport {\n  isValidMetricName,\n  convertMetricValueToInteger\n} from '../utils/metric_utils';\nimport { PerformanceTrace } from '../public_types';\nimport { PerformanceController } from '../controllers/perf';\n\nconst enum TraceState {\n  UNINITIALIZED = 1,\n  RUNNING,\n  TERMINATED\n}\n\nexport class Trace implements PerformanceTrace {\n  private state: TraceState = TraceState.UNINITIALIZED;\n  startTimeUs!: number;\n  durationUs!: number;\n  private customAttributes: { [key: string]: string } = {};\n  counters: { [counterName: string]: number } = {};\n  private api = Api.getInstance();\n  private randomId = Math.floor(Math.random() * 1000000);\n  private traceStartMark!: string;\n  private traceStopMark!: string;\n  private traceMeasure!: string;\n\n  /**\n   * @param performanceController The performance controller running.\n   * @param name The name of the trace.\n   * @param isAuto If the trace is auto-instrumented.\n   * @param traceMeasureName The name of the measure marker in user timing specification. This field\n   * is only set when the trace is built for logging when the user directly uses the user timing\n   * api (performance.mark and performance.measure).\n   */\n  constructor(\n    readonly performanceController: PerformanceController,\n    readonly name: string,\n    readonly isAuto = false,\n    traceMeasureName?: string\n  ) {\n    if (!this.isAuto) {\n      this.traceStartMark = `${TRACE_START_MARK_PREFIX}-${this.randomId}-${this.name}`;\n      this.traceStopMark = `${TRACE_STOP_MARK_PREFIX}-${this.randomId}-${this.name}`;\n      this.traceMeasure =\n        traceMeasureName ||\n        `${TRACE_MEASURE_PREFIX}-${this.randomId}-${this.name}`;\n\n      if (traceMeasureName) {\n        // For the case of direct user timing traces, no start stop will happen. The measure object\n        // is already available.\n        this.calculateTraceMetrics();\n      }\n    }\n  }\n\n  /**\n   * Starts a trace. The measurement of the duration starts at this point.\n   */\n  start(): void {\n    if (this.state !== TraceState.UNINITIALIZED) {\n      throw ERROR_FACTORY.create(ErrorCode.TRACE_STARTED_BEFORE, {\n        traceName: this.name\n      });\n    }\n    this.api.mark(this.traceStartMark);\n    this.state = TraceState.RUNNING;\n  }\n\n  /**\n   * Stops the trace. The measurement of the duration of the trace stops at this point and trace\n   * is logged.\n   */\n  stop(): void {\n    if (this.state !== TraceState.RUNNING) {\n      throw ERROR_FACTORY.create(ErrorCode.TRACE_STOPPED_BEFORE, {\n        traceName: this.name\n      });\n    }\n    this.state = TraceState.TERMINATED;\n    this.api.mark(this.traceStopMark);\n    this.api.measure(\n      this.traceMeasure,\n      this.traceStartMark,\n      this.traceStopMark\n    );\n    this.calculateTraceMetrics();\n    logTrace(this);\n  }\n\n  /**\n   * Records a trace with predetermined values. If this method is used a trace is created and logged\n   * directly. No need to use start and stop methods.\n   * @param startTime Trace start time since epoch in millisec\n   * @param duration The duraction of the trace in millisec\n   * @param options An object which can optionally hold maps of custom metrics and custom attributes\n   */\n  record(\n    startTime: number,\n    duration: number,\n    options?: {\n      metrics?: { [key: string]: number };\n      attributes?: { [key: string]: string };\n    }\n  ): void {\n    if (startTime <= 0) {\n      throw ERROR_FACTORY.create(ErrorCode.NONPOSITIVE_TRACE_START_TIME, {\n        traceName: this.name\n      });\n    }\n    if (duration <= 0) {\n      throw ERROR_FACTORY.create(ErrorCode.NONPOSITIVE_TRACE_DURATION, {\n        traceName: this.name\n      });\n    }\n\n    this.durationUs = Math.floor(duration * 1000);\n    this.startTimeUs = Math.floor(startTime * 1000);\n    if (options && options.attributes) {\n      this.customAttributes = { ...options.attributes };\n    }\n    if (options && options.metrics) {\n      for (const metricName of Object.keys(options.metrics)) {\n        if (!isNaN(Number(options.metrics[metricName]))) {\n          this.counters[metricName] = Math.floor(\n            Number(options.metrics[metricName])\n          );\n        }\n      }\n    }\n    logTrace(this);\n  }\n\n  /**\n   * Increments a custom metric by a certain number or 1 if number not specified. Will create a new\n   * custom metric if one with the given name does not exist. The value will be floored down to an\n   * integer.\n   * @param counter Name of the custom metric\n   * @param numAsInteger Increment by value\n   */\n  incrementMetric(counter: string, numAsInteger = 1): void {\n    if (this.counters[counter] === undefined) {\n      this.putMetric(counter, numAsInteger);\n    } else {\n      this.putMetric(counter, this.counters[counter] + numAsInteger);\n    }\n  }\n\n  /**\n   * Sets a custom metric to a specified value. Will create a new custom metric if one with the\n   * given name does not exist. The value will be floored down to an integer.\n   * @param counter Name of the custom metric\n   * @param numAsInteger Set custom metric to this value\n   */\n  putMetric(counter: string, numAsInteger: number): void {\n    if (isValidMetricName(counter, this.name)) {\n      this.counters[counter] = convertMetricValueToInteger(numAsInteger ?? 0);\n    } else {\n      throw ERROR_FACTORY.create(ErrorCode.INVALID_CUSTOM_METRIC_NAME, {\n        customMetricName: counter\n      });\n    }\n  }\n\n  /**\n   * Returns the value of the custom metric by that name. If a custom metric with that name does\n   * not exist will return zero.\n   * @param counter\n   */\n  getMetric(counter: string): number {\n    return this.counters[counter] || 0;\n  }\n\n  /**\n   * Sets a custom attribute of a trace to a certain value.\n   * @param attr\n   * @param value\n   */\n  putAttribute(attr: string, value: string): void {\n    const isValidName = isValidCustomAttributeName(attr);\n    const isValidValue = isValidCustomAttributeValue(value);\n    if (isValidName && isValidValue) {\n      this.customAttributes[attr] = value;\n      return;\n    }\n    // Throw appropriate error when the attribute name or value is invalid.\n    if (!isValidName) {\n      throw ERROR_FACTORY.create(ErrorCode.INVALID_ATTRIBUTE_NAME, {\n        attributeName: attr\n      });\n    }\n    if (!isValidValue) {\n      throw ERROR_FACTORY.create(ErrorCode.INVALID_ATTRIBUTE_VALUE, {\n        attributeValue: value\n      });\n    }\n  }\n\n  /**\n   * Retrieves the value a custom attribute of a trace is set to.\n   * @param attr\n   */\n  getAttribute(attr: string): string | undefined {\n    return this.customAttributes[attr];\n  }\n\n  removeAttribute(attr: string): void {\n    if (this.customAttributes[attr] === undefined) {\n      return;\n    }\n    delete this.customAttributes[attr];\n  }\n\n  getAttributes(): { [key: string]: string } {\n    return { ...this.customAttributes };\n  }\n\n  private setStartTime(startTime: number): void {\n    this.startTimeUs = startTime;\n  }\n\n  private setDuration(duration: number): void {\n    this.durationUs = duration;\n  }\n\n  /**\n   * Calculates and assigns the duration and start time of the trace using the measure performance\n   * entry.\n   */\n  private calculateTraceMetrics(): void {\n    const perfMeasureEntries = this.api.getEntriesByName(this.traceMeasure);\n    const perfMeasureEntry = perfMeasureEntries && perfMeasureEntries[0];\n    if (perfMeasureEntry) {\n      this.durationUs = Math.floor(perfMeasureEntry.duration * 1000);\n      this.startTimeUs = Math.floor(\n        (perfMeasureEntry.startTime + this.api.getTimeOrigin()) * 1000\n      );\n    }\n  }\n\n  /**\n   * @param navigationTimings A single element array which contains the navigationTIming object of\n   * the page load\n   * @param paintTimings A array which contains paintTiming object of the page load\n   * @param firstInputDelay First input delay in millisec\n   */\n  static createOobTrace(\n    performanceController: PerformanceController,\n    navigationTimings: PerformanceNavigationTiming[],\n    paintTimings: PerformanceEntry[],\n    firstInputDelay?: number\n  ): void {\n    const route = Api.getInstance().getUrl();\n    if (!route) {\n      return;\n    }\n    const trace = new Trace(\n      performanceController,\n      OOB_TRACE_PAGE_LOAD_PREFIX + route,\n      true\n    );\n    const timeOriginUs = Math.floor(Api.getInstance().getTimeOrigin() * 1000);\n    trace.setStartTime(timeOriginUs);\n\n    // navigationTimings includes only one element.\n    if (navigationTimings && navigationTimings[0]) {\n      trace.setDuration(Math.floor(navigationTimings[0].duration * 1000));\n      trace.putMetric(\n        'domInteractive',\n        Math.floor(navigationTimings[0].domInteractive * 1000)\n      );\n      trace.putMetric(\n        'domContentLoadedEventEnd',\n        Math.floor(navigationTimings[0].domContentLoadedEventEnd * 1000)\n      );\n      trace.putMetric(\n        'loadEventEnd',\n        Math.floor(navigationTimings[0].loadEventEnd * 1000)\n      );\n    }\n\n    const FIRST_PAINT = 'first-paint';\n    const FIRST_CONTENTFUL_PAINT = 'first-contentful-paint';\n    if (paintTimings) {\n      const firstPaint = paintTimings.find(\n        paintObject => paintObject.name === FIRST_PAINT\n      );\n      if (firstPaint && firstPaint.startTime) {\n        trace.putMetric(\n          FIRST_PAINT_COUNTER_NAME,\n          Math.floor(firstPaint.startTime * 1000)\n        );\n      }\n      const firstContentfulPaint = paintTimings.find(\n        paintObject => paintObject.name === FIRST_CONTENTFUL_PAINT\n      );\n      if (firstContentfulPaint && firstContentfulPaint.startTime) {\n        trace.putMetric(\n          FIRST_CONTENTFUL_PAINT_COUNTER_NAME,\n          Math.floor(firstContentfulPaint.startTime * 1000)\n        );\n      }\n\n      if (firstInputDelay) {\n        trace.putMetric(\n          FIRST_INPUT_DELAY_COUNTER_NAME,\n          Math.floor(firstInputDelay * 1000)\n        );\n      }\n    }\n\n    logTrace(trace);\n  }\n\n  static createUserTimingTrace(\n    performanceController: PerformanceController,\n    measureName: string\n  ): void {\n    const trace = new Trace(\n      performanceController,\n      measureName,\n      false,\n      measureName\n    );\n    logTrace(trace);\n  }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Api } from '../services/api_service';\nimport { logNetworkRequest } from '../services/perf_logger';\nimport { PerformanceController } from '../controllers/perf';\n\n// The order of values of this enum should not be changed.\nexport const enum HttpMethod {\n  HTTP_METHOD_UNKNOWN = 0,\n  GET = 1,\n  PUT = 2,\n  POST = 3,\n  DELETE = 4,\n  HEAD = 5,\n  PATCH = 6,\n  OPTIONS = 7,\n  TRACE = 8,\n  CONNECT = 9\n}\n\n// Durations are in microseconds.\nexport interface NetworkRequest {\n  performanceController: PerformanceController;\n  url: string;\n  httpMethod?: HttpMethod;\n  requestPayloadBytes?: number;\n  responsePayloadBytes?: number;\n  httpResponseCode?: number;\n  responseContentType?: string;\n  startTimeUs?: number;\n  timeToRequestCompletedUs?: number;\n  timeToResponseInitiatedUs?: number;\n  timeToResponseCompletedUs?: number;\n}\n\nexport function createNetworkRequestEntry(\n  performanceController: PerformanceController,\n  entry: PerformanceEntry\n): void {\n  const performanceEntry = entry as PerformanceResourceTiming;\n  if (!performanceEntry || performanceEntry.responseStart === undefined) {\n    return;\n  }\n  const timeOrigin = Api.getInstance().getTimeOrigin();\n  const startTimeUs = Math.floor(\n    (performanceEntry.startTime + timeOrigin) * 1000\n  );\n  const timeToResponseInitiatedUs = performanceEntry.responseStart\n    ? Math.floor(\n        (performanceEntry.responseStart - performanceEntry.startTime) * 1000\n      )\n    : undefined;\n  const timeToResponseCompletedUs = Math.floor(\n    (performanceEntry.responseEnd - performanceEntry.startTime) * 1000\n  );\n  // Remove the query params from logged network request url.\n  const url = performanceEntry.name && performanceEntry.name.split('?')[0];\n  const networkRequest: NetworkRequest = {\n    performanceController,\n    url,\n    responsePayloadBytes: performanceEntry.transferSize,\n    startTimeUs,\n    timeToResponseInitiatedUs,\n    timeToResponseCompletedUs\n  };\n\n  logNetworkRequest(networkRequest);\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Api } from './api_service';\nimport { Trace } from '../resources/trace';\nimport { createNetworkRequestEntry } from '../resources/network_request';\nimport { TRACE_MEASURE_PREFIX } from '../constants';\nimport { getIid } from './iid_service';\nimport { PerformanceController } from '../controllers/perf';\n\nconst FID_WAIT_TIME_MS = 5000;\n\nexport function setupOobResources(\n  performanceController: PerformanceController\n): void {\n  // Do not initialize unless iid is available.\n  if (!getIid()) {\n    return;\n  }\n  // The load event might not have fired yet, and that means performance navigation timing\n  // object has a duration of 0. The setup should run after all current tasks in js queue.\n  setTimeout(() => setupOobTraces(performanceController), 0);\n  setTimeout(() => setupNetworkRequests(performanceController), 0);\n  setTimeout(() => setupUserTimingTraces(performanceController), 0);\n}\n\nfunction setupNetworkRequests(\n  performanceController: PerformanceController\n): void {\n  const api = Api.getInstance();\n  const resources = api.getEntriesByType('resource');\n  for (const resource of resources) {\n    createNetworkRequestEntry(performanceController, resource);\n  }\n  api.setupObserver('resource', entry =>\n    createNetworkRequestEntry(performanceController, entry)\n  );\n}\n\nfunction setupOobTraces(performanceController: PerformanceController): void {\n  const api = Api.getInstance();\n  const navigationTimings = api.getEntriesByType(\n    'navigation'\n  ) as PerformanceNavigationTiming[];\n  const paintTimings = api.getEntriesByType('paint');\n  // If First Input Desly polyfill is added to the page, report the fid value.\n  // https://github.com/GoogleChromeLabs/first-input-delay\n  if (api.onFirstInputDelay) {\n    // If the fid call back is not called for certain time, continue without it.\n    // eslint-disable-next-line @typescript-eslint/no-explicit-any\n    let timeoutId: any = setTimeout(() => {\n      Trace.createOobTrace(\n        performanceController,\n        navigationTimings,\n        paintTimings\n      );\n      timeoutId = undefined;\n    }, FID_WAIT_TIME_MS);\n    api.onFirstInputDelay((fid: number) => {\n      if (timeoutId) {\n        clearTimeout(timeoutId);\n        Trace.createOobTrace(\n          performanceController,\n          navigationTimings,\n          paintTimings,\n          fid\n        );\n      }\n    });\n  } else {\n    Trace.createOobTrace(\n      performanceController,\n      navigationTimings,\n      paintTimings\n    );\n  }\n}\n\nfunction setupUserTimingTraces(\n  performanceController: PerformanceController\n): void {\n  const api = Api.getInstance();\n  // Run through the measure performance entries collected up to this point.\n  const measures = api.getEntriesByType('measure');\n  for (const measure of measures) {\n    createUserTimingTrace(performanceController, measure);\n  }\n  // Setup an observer to capture the measures from this point on.\n  api.setupObserver('measure', entry =>\n    createUserTimingTrace(performanceController, entry)\n  );\n}\n\nfunction createUserTimingTrace(\n  performanceController: PerformanceController,\n  measure: PerformanceEntry\n): void {\n  const measureName = measure.name;\n  // Do not create a trace, if the user timing marks and measures are created by the sdk itself.\n  if (\n    measureName.substring(0, TRACE_MEASURE_PREFIX.length) ===\n    TRACE_MEASURE_PREFIX\n  ) {\n    return;\n  }\n  Trace.createUserTimingTrace(performanceController, measureName);\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { setupOobResources } from '../services/oob_resources_service';\nimport { SettingsService } from '../services/settings_service';\nimport { getInitializationPromise } from '../services/initialization_service';\nimport { Api } from '../services/api_service';\nimport { FirebaseApp } from '@firebase/app';\nimport { _FirebaseInstallationsInternal } from '@firebase/installations';\nimport { PerformanceSettings, FirebasePerformance } from '../public_types';\nimport { validateIndexedDBOpenable } from '@firebase/util';\nimport { setupTransportService } from '../services/transport_service';\nimport { consoleLogger } from '../utils/console_logger';\n\nexport class PerformanceController implements FirebasePerformance {\n  private initialized: boolean = false;\n\n  constructor(\n    readonly app: FirebaseApp,\n    readonly installations: _FirebaseInstallationsInternal\n  ) {}\n\n  /**\n   * This method *must* be called internally as part of creating a\n   * PerformanceController instance.\n   *\n   * Currently it's not possible to pass the settings object through the\n   * constructor using Components, so this method exists to be called with the\n   * desired settings, to ensure nothing is collected without the user's\n   * consent.\n   */\n  _init(settings?: PerformanceSettings): void {\n    if (this.initialized) {\n      return;\n    }\n\n    if (settings?.dataCollectionEnabled !== undefined) {\n      this.dataCollectionEnabled = settings.dataCollectionEnabled;\n    }\n    if (settings?.instrumentationEnabled !== undefined) {\n      this.instrumentationEnabled = settings.instrumentationEnabled;\n    }\n\n    if (Api.getInstance().requiredApisAvailable()) {\n      validateIndexedDBOpenable()\n        .then(isAvailable => {\n          if (isAvailable) {\n            setupTransportService();\n            getInitializationPromise(this).then(\n              () => setupOobResources(this),\n              () => setupOobResources(this)\n            );\n            this.initialized = true;\n          }\n        })\n        .catch(error => {\n          consoleLogger.info(`Environment doesn't support IndexedDB: ${error}`);\n        });\n    } else {\n      consoleLogger.info(\n        'Firebase Performance cannot start if the browser does not support ' +\n          '\"Fetch\" and \"Promise\", or cookies are disabled.'\n      );\n    }\n  }\n\n  set instrumentationEnabled(val: boolean) {\n    SettingsService.getInstance().instrumentationEnabled = val;\n  }\n  get instrumentationEnabled(): boolean {\n    return SettingsService.getInstance().instrumentationEnabled;\n  }\n\n  set dataCollectionEnabled(val: boolean) {\n    SettingsService.getInstance().dataCollectionEnabled = val;\n  }\n  get dataCollectionEnabled(): boolean {\n    return SettingsService.getInstance().dataCollectionEnabled;\n  }\n}\n","/**\n * Firebase Performance Monitoring\n *\n * @packageDocumentation\n */\n\n/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n  FirebasePerformance,\n  PerformanceSettings,\n  PerformanceTrace\n} from './public_types';\nimport { ERROR_FACTORY, ErrorCode } from './utils/errors';\nimport { setupApi } from './services/api_service';\nimport { PerformanceController } from './controllers/perf';\nimport {\n  _registerComponent,\n  _getProvider,\n  registerVersion,\n  FirebaseApp,\n  getApp\n} from '@firebase/app';\nimport {\n  InstanceFactory,\n  ComponentContainer,\n  Component,\n  ComponentType\n} from '@firebase/component';\nimport { name, version } from '../package.json';\nimport { Trace } from './resources/trace';\nimport '@firebase/installations';\nimport { deepEqual, getModularInstance } from '@firebase/util';\n\nconst DEFAULT_ENTRY_NAME = '[DEFAULT]';\n\n/**\n * Returns a {@link FirebasePerformance} instance for the given app.\n * @param app - The {@link @firebase/app#FirebaseApp} to use.\n * @public\n */\nexport function getPerformance(\n  app: FirebaseApp = getApp()\n): FirebasePerformance {\n  app = getModularInstance(app);\n  const provider = _getProvider(app, 'performance');\n  const perfInstance = provider.getImmediate() as PerformanceController;\n  return perfInstance;\n}\n\n/**\n * Returns a {@link FirebasePerformance} instance for the given app. Can only be called once.\n * @param app - The {@link @firebase/app#FirebaseApp} to use.\n * @param settings - Optional settings for the {@link FirebasePerformance} instance.\n * @public\n */\nexport function initializePerformance(\n  app: FirebaseApp,\n  settings?: PerformanceSettings\n): FirebasePerformance {\n  app = getModularInstance(app);\n  const provider = _getProvider(app, 'performance');\n\n  // throw if an instance was already created.\n  // It could happen if initializePerformance() is called more than once, or getPerformance() is called first.\n  if (provider.isInitialized()) {\n    const existingInstance = provider.getImmediate();\n    const initialSettings = provider.getOptions() as PerformanceSettings;\n    if (deepEqual(initialSettings, settings ?? {})) {\n      return existingInstance;\n    } else {\n      throw ERROR_FACTORY.create(ErrorCode.ALREADY_INITIALIZED);\n    }\n  }\n\n  const perfInstance = provider.initialize({\n    options: settings\n  }) as PerformanceController;\n  return perfInstance;\n}\n\n/**\n * Returns a new `PerformanceTrace` instance.\n * @param performance - The {@link FirebasePerformance} instance to use.\n * @param name - The name of the trace.\n * @public\n */\nexport function trace(\n  performance: FirebasePerformance,\n  name: string\n): PerformanceTrace {\n  performance = getModularInstance(performance);\n  return new Trace(performance as PerformanceController, name);\n}\n\nconst factory: InstanceFactory<'performance'> = (\n  container: ComponentContainer,\n  { options: settings }: { options?: PerformanceSettings }\n) => {\n  // Dependencies\n  const app = container.getProvider('app').getImmediate();\n  const installations = container\n    .getProvider('installations-internal')\n    .getImmediate();\n\n  if (app.name !== DEFAULT_ENTRY_NAME) {\n    throw ERROR_FACTORY.create(ErrorCode.FB_NOT_DEFAULT);\n  }\n  if (typeof window === 'undefined') {\n    throw ERROR_FACTORY.create(ErrorCode.NO_WINDOW);\n  }\n  setupApi(window);\n  const perfInstance = new PerformanceController(app, installations);\n  perfInstance._init(settings);\n\n  return perfInstance;\n};\n\nfunction registerPerformance(): void {\n  _registerComponent(\n    new Component('performance', factory, ComponentType.PUBLIC)\n  );\n  registerVersion(name, version);\n  // BUILD_TARGET will be replaced by values like esm5, esm2017, cjs5, etc during the compilation\n  registerVersion(name, version, '__BUILD_TARGET__');\n}\n\nregisterPerformance();\n\nexport { FirebasePerformance, PerformanceSettings, PerformanceTrace 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