VUE_GabenParadise/node_modules/firebase/firebase-performance-standalone.es2017.js.map

{"version":3,"file":"firebase-performance-standalone.es2017.js","sources":["../util/src/deepCopy.ts","../util/src/deferred.ts","../util/src/errors.ts","../util/src/obj.ts","../component/src/component.ts","../component/src/provider.ts","../component/src/constants.ts","../component/src/component_container.ts","../logger/src/logger.ts","../app/src/errors.ts","../app/src/constants.ts","../app/src/lite/firebaseAppLite.ts","../app/src/logger.ts","../app/src/firebaseNamespaceCore.ts","../app/src/platformLoggerService.ts","../app/index.lite.ts","../app/src/lite/firebaseNamespaceLite.ts","../../node_modules/idb/lib/idb.mjs","../app/src/registerCoreComponents.ts","../installations/src/util/errors.ts","../installations/src/util/constants.ts","../installations/src/api/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/api/create-installation-request.ts","../installations/src/api/generate-auth-token-request.ts","../installations/src/helpers/refresh-auth-token.ts","../installations/src/functions/get-token.ts","../installations/src/api/delete-installation-request.ts","../installations/src/functions/on-id-change.ts","../installations/src/helpers/extract-app-config.ts","../installations/src/index.ts","../installations/src/functions/get-id.ts","../installations/src/functions/delete-installation.ts","../performance/src/utils/errors.ts","../performance/src/constants.ts","../performance/src/services/api_service.ts","../performance/src/services/settings_service.ts","../performance/src/services/iid_service.ts","../performance/src/utils/string_merger.ts","../performance/src/utils/attributes_utils.ts","../performance/src/utils/console_logger.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/index.ts","src/index.perf.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/**\n * Do a deep-copy of basic JavaScript Objects or Arrays.\n */\nexport function deepCopy<T>(value: T): T {\n  return deepExtend(undefined, value) as T;\n}\n\n/**\n * Copy properties from source to target (recursively allows extension\n * of Objects and Arrays).  Scalar values in the target are over-written.\n * If target is undefined, an object of the appropriate type will be created\n * (and returned).\n *\n * We recursively copy all child properties of plain Objects in the source- so\n * that namespace- like dictionaries are merged.\n *\n * Note that the target can be a function, in which case the properties in\n * the source Object are copied onto it as static properties of the Function.\n */\nexport function deepExtend(target: unknown, source: unknown): unknown {\n  if (!(source instanceof Object)) {\n    return source;\n  }\n\n  switch (source.constructor) {\n    case Date:\n      // Treat Dates like scalars; if the target date object had any child\n      // properties - they will be lost!\n      const dateValue = source as Date;\n      return new Date(dateValue.getTime());\n\n    case Object:\n      if (target === undefined) {\n        target = {};\n      }\n      break;\n    case Array:\n      // Always copy the array source and overwrite the target.\n      target = [];\n      break;\n\n    default:\n      // Not a plain Object - treat it as a scalar.\n      return source;\n  }\n\n  for (const prop in source) {\n    if (!source.hasOwnProperty(prop)) {\n      continue;\n    }\n    (target as { [key: string]: unknown })[prop] = deepExtend(\n      (target as { [key: string]: unknown })[prop],\n      (source as { [key: string]: unknown })[prop]\n    );\n  }\n\n  return target;\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 class Deferred<R> {\n  promise: Promise<R>;\n  reject: (value?: unknown) => void = () => {};\n  resolve: (value?: unknown) => void = () => {};\n  constructor() {\n    this.promise = new Promise((resolve, reject) => {\n      this.resolve = resolve as (value?: unknown) => void;\n      this.reject = reject as (value?: unknown) => void;\n    });\n  }\n\n  /**\n   * Our API internals are not promiseified and cannot because our callback APIs have subtle expectations around\n   * invoking promises inline, which Promises are forbidden to do. This method accepts an optional node-style callback\n   * and returns a node-style callback which will resolve or reject the Deferred's promise.\n   */\n  wrapCallback(\n    callback?: (error?: unknown, value?: unknown) => void\n  ): (error: unknown, value?: unknown) => void {\n    return (error, value?) => {\n      if (error) {\n        this.reject(error);\n      } else {\n        this.resolve(value);\n      }\n      if (typeof callback === 'function') {\n        // Attaching noop handler just in case developer wasn't expecting\n        // promises\n        this.promise.catch(() => {});\n\n        // Some of our callbacks don't expect a value and our own tests\n        // assert that the parameter length is 1\n        if (callback.length === 1) {\n          callback(error);\n        } else {\n          callback(error, value);\n        }\n      }\n    };\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/**\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.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]: StringLike | undefined;\n}\n\nexport interface FirebaseError extends Error, ErrorData {\n  // Unique code for error - format is service/error-code-string.\n  readonly code: string;\n\n  // Developer-friendly error message.\n  readonly message: string;\n\n  // Always 'FirebaseError'.\n  readonly name: typeof ERROR_NAME;\n\n  // Where available - stack backtrace in a string.\n  readonly stack?: string;\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  readonly name = ERROR_NAME;\n\n  constructor(readonly code: string, message: string) {\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);\n\n    // Keys with an underscore at the end of their name are not included in\n    // error.data for some reason.\n    // TODO: Replace with Object.entries when lib is updated to es2017.\n    for (const key of Object.keys(customData)) {\n      if (key.slice(-1) !== '_') {\n        if (key in error) {\n          console.warn(\n            `Overwriting FirebaseError base field \"${key}\" can cause unexpected behavior.`\n          );\n        }\n        error[key] = customData[key];\n      }\n    }\n\n    return error;\n  }\n}\n\nfunction replaceTemplate(template: string, data: ErrorData): string {\n  return template.replace(PATTERN, (_, key) => {\n    const value = data[key];\n    return value != null ? value.toString() : `<${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 * @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} 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  /**\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","/**\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 { Deferred } from '@firebase/util';\nimport { ComponentContainer } from './component_container';\nimport { DEFAULT_ENTRY_NAME } from './constants';\nimport { InstantiationMode, Name, NameServiceMapping } from './types';\nimport { Component } from './component';\n\n/**\n * Provider for instance for service name T, e.g. 'auth', 'auth-internal'\n * NameServiceMapping[T] is an alias for the type of the instance\n */\nexport class Provider<T extends Name> {\n  private component: Component<T> | null = null;\n  private readonly instances: Map<string, NameServiceMapping[T]> = new Map();\n  private readonly instancesDeferred: Map<\n    string,\n    Deferred<NameServiceMapping[T]>\n  > = new Map();\n\n  constructor(\n    private readonly name: T,\n    private readonly container: ComponentContainer\n  ) {}\n\n  /**\n   * @param identifier A provider can provide mulitple instances of a service\n   * if this.component.multipleInstances is true.\n   */\n  get(identifier: string = DEFAULT_ENTRY_NAME): Promise<NameServiceMapping[T]> {\n    // if multipleInstances is not supported, use the default name\n    const normalizedIdentifier = this.normalizeInstanceIdentifier(identifier);\n\n    if (!this.instancesDeferred.has(normalizedIdentifier)) {\n      const deferred = new Deferred<NameServiceMapping[T]>();\n      this.instancesDeferred.set(normalizedIdentifier, deferred);\n      // If the service instance is available, resolve the promise with it immediately\n      try {\n        const instance = this.getOrInitializeService(normalizedIdentifier);\n        if (instance) {\n          deferred.resolve(instance);\n        }\n      } catch (e) {\n        // when the instance factory throws an exception during get(), it should not cause\n        // a fatal error. We just return the unresolved promise in this case.\n      }\n    }\n\n    return this.instancesDeferred.get(normalizedIdentifier)!.promise;\n  }\n\n  /**\n   *\n   * @param options.identifier A provider can provide mulitple instances of a service\n   * if this.component.multipleInstances is true.\n   * @param options.optional If optional is false or not provided, the method throws an error when\n   * the service is not immediately available.\n   * If optional is true, the method returns null if the service is not immediately available.\n   */\n  getImmediate(options: {\n    identifier?: string;\n    optional: true;\n  }): NameServiceMapping[T] | null;\n  getImmediate(options?: {\n    identifier?: string;\n    optional?: false;\n  }): NameServiceMapping[T];\n  getImmediate(options?: {\n    identifier?: string;\n    optional?: boolean;\n  }): NameServiceMapping[T] | null {\n    const { identifier, optional } = {\n      identifier: DEFAULT_ENTRY_NAME,\n      optional: false,\n      ...options\n    };\n    // if multipleInstances is not supported, use the default name\n    const normalizedIdentifier = this.normalizeInstanceIdentifier(identifier);\n    try {\n      const instance = this.getOrInitializeService(normalizedIdentifier);\n\n      if (!instance) {\n        if (optional) {\n          return null;\n        }\n        throw Error(`Service ${this.name} is not available`);\n      }\n      return instance;\n    } catch (e) {\n      if (optional) {\n        return null;\n      } else {\n        throw e;\n      }\n    }\n  }\n\n  getComponent(): Component<T> | null {\n    return this.component;\n  }\n\n  setComponent(component: Component<T>): void {\n    if (component.name !== this.name) {\n      throw Error(\n        `Mismatching Component ${component.name} for Provider ${this.name}.`\n      );\n    }\n\n    if (this.component) {\n      throw Error(`Component for ${this.name} has already been provided`);\n    }\n\n    this.component = component;\n    // if the service is eager, initialize the default instance\n    if (isComponentEager(component)) {\n      try {\n        this.getOrInitializeService(DEFAULT_ENTRY_NAME);\n      } catch (e) {\n        // when the instance factory for an eager Component throws an exception during the eager\n        // initialization, it should not cause a fatal error.\n        // TODO: Investigate if we need to make it configurable, because some component may want to cause\n        // a fatal error in this case?\n      }\n    }\n\n    // Create service instances for the pending promises and resolve them\n    // NOTE: if this.multipleInstances is false, only the default instance will be created\n    // and all promises with resolve with it regardless of the identifier.\n    for (const [\n      instanceIdentifier,\n      instanceDeferred\n    ] of this.instancesDeferred.entries()) {\n      const normalizedIdentifier = this.normalizeInstanceIdentifier(\n        instanceIdentifier\n      );\n\n      try {\n        // `getOrInitializeService()` should always return a valid instance since a component is guaranteed. use ! to make typescript happy.\n        const instance = this.getOrInitializeService(normalizedIdentifier)!;\n        instanceDeferred.resolve(instance);\n      } catch (e) {\n        // when the instance factory throws an exception, it should not cause\n        // a fatal error. We just leave the promise unresolved.\n      }\n    }\n  }\n\n  clearInstance(identifier: string = DEFAULT_ENTRY_NAME): void {\n    this.instancesDeferred.delete(identifier);\n    this.instances.delete(identifier);\n  }\n\n  // app.delete() will call this method on every provider to delete the services\n  // TODO: should we mark the provider as deleted?\n  async delete(): Promise<void> {\n    const services = Array.from(this.instances.values());\n\n    await Promise.all(\n      services\n        .filter(service => 'INTERNAL' in service)\n        // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        .map(service => (service as any).INTERNAL!.delete())\n    );\n  }\n\n  isComponentSet(): boolean {\n    return this.component != null;\n  }\n\n  private getOrInitializeService(\n    identifier: string\n  ): NameServiceMapping[T] | null {\n    let instance = this.instances.get(identifier);\n    if (!instance && this.component) {\n      instance = this.component.instanceFactory(\n        this.container,\n        normalizeIdentifierForFactory(identifier)\n      ) as NameServiceMapping[T];\n      this.instances.set(identifier, instance);\n    }\n\n    return instance || null;\n  }\n\n  private normalizeInstanceIdentifier(identifier: string): string {\n    if (this.component) {\n      return this.component.multipleInstances ? identifier : DEFAULT_ENTRY_NAME;\n    } else {\n      return identifier; // assume multiple instances are supported before the component is provided.\n    }\n  }\n}\n\n// undefined should be passed to the service factory for the default instance\nfunction normalizeIdentifierForFactory(identifier: string): string | undefined {\n  return identifier === DEFAULT_ENTRY_NAME ? undefined : identifier;\n}\n\nfunction isComponentEager(component: Component<Name>): boolean {\n  return component.instantiationMode === InstantiationMode.EAGER;\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 const DEFAULT_ENTRY_NAME = '[DEFAULT]';\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 { Provider } from './provider';\nimport { Component } from './component';\nimport { Name } from './types';\n\n/**\n * ComponentContainer that provides Providers for service name T, e.g. `auth`, `auth-internal`\n */\nexport class ComponentContainer {\n  private readonly providers = new Map<string, Provider<Name>>();\n\n  constructor(private readonly name: string) {}\n\n  /**\n   *\n   * @param component Component being added\n   * @param overwrite When a component with the same name has already been registered,\n   * if overwrite is true: overwrite the existing component with the new component and create a new\n   * provider with the new component. It can be useful in tests where you want to use different mocks\n   * for different tests.\n   * if overwrite is false: throw an exception\n   */\n  addComponent<T extends Name>(component: Component<T>): void {\n    const provider = this.getProvider(component.name);\n    if (provider.isComponentSet()) {\n      throw new Error(\n        `Component ${component.name} has already been registered with ${this.name}`\n      );\n    }\n\n    provider.setComponent(component);\n  }\n\n  addOrOverwriteComponent<T extends Name>(component: Component<T>): void {\n    const provider = this.getProvider(component.name);\n    if (provider.isComponentSet()) {\n      // delete the existing provider from the container, so we can register the new component\n      this.providers.delete(component.name);\n    }\n\n    this.addComponent(component);\n  }\n\n  /**\n   * getProvider provides a type safe interface where it can only be called with a field name\n   * present in NameServiceMapping interface.\n   *\n   * Firebase SDKs providing services should extend NameServiceMapping interface to register\n   * themselves.\n   */\n  getProvider<T extends Name>(name: T): Provider<T> {\n    if (this.providers.has(name)) {\n      return this.providers.get(name) as Provider<T>;\n    }\n\n    // create a Provider for a service that hasn't registered with Firebase\n    const provider = new Provider<T>(name, this);\n    this.providers.set(name, provider);\n\n    return provider as Provider<T>;\n  }\n\n  getProviders(): Array<Provider<Name>> {\n    return Array.from(this.providers.values());\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  get logLevel(): LogLevel {\n    return this._logLevel;\n  }\n  set logLevel(val: LogLevel) {\n    if (!(val in LogLevel)) {\n      throw new TypeError('Invalid value assigned to `logLevel`');\n    }\n    this._logLevel = 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  const newLevel = typeof level === 'string' ? levelStringToEnum[level] : level;\n  instances.forEach(inst => {\n    inst.logLevel = newLevel;\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 */\n\nimport { ErrorFactory, ErrorMap } from '@firebase/util';\n\nexport const enum AppError {\n  NO_APP = 'no-app',\n  BAD_APP_NAME = 'bad-app-name',\n  DUPLICATE_APP = 'duplicate-app',\n  APP_DELETED = 'app-deleted',\n  INVALID_APP_ARGUMENT = 'invalid-app-argument',\n  INVALID_LOG_ARGUMENT = 'invalid-log-argument'\n}\n\nconst ERRORS: ErrorMap<AppError> = {\n  [AppError.NO_APP]:\n    \"No Firebase App '{$appName}' has been created - \" +\n    'call Firebase App.initializeApp()',\n  [AppError.BAD_APP_NAME]: \"Illegal App name: '{$appName}\",\n  [AppError.DUPLICATE_APP]: \"Firebase App named '{$appName}' already exists\",\n  [AppError.APP_DELETED]: \"Firebase App named '{$appName}' already deleted\",\n  [AppError.INVALID_APP_ARGUMENT]:\n    'firebase.{$appName}() takes either no argument or a ' +\n    'Firebase App instance.',\n  [AppError.INVALID_LOG_ARGUMENT]:\n    'First argument to `onLog` must be null or a function.'\n};\n\ntype ErrorParams = { [key in AppError]: { appName: string } };\n\nexport const ERROR_FACTORY = new ErrorFactory<AppError, ErrorParams>(\n  'app',\n  'Firebase',\n  ERRORS\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 const DEFAULT_ENTRY_NAME = '[DEFAULT]';\nimport { name as appName } from '../package.json';\nimport { name as analyticsName } from '../../analytics/package.json';\nimport { name as authName } from '../../auth/package.json';\nimport { name as databaseName } from '../../database/package.json';\nimport { name as functionsName } from '../../functions/package.json';\nimport { name as installationsName } from '../../installations/package.json';\nimport { name as messagingName } from '../../messaging/package.json';\nimport { name as performanceName } from '../../performance/package.json';\nimport { name as remoteConfigName } from '../../remote-config/package.json';\nimport { name as storageName } from '../../storage/package.json';\nimport { name as firestoreName } from '../../firestore/package.json';\nimport { name as packageName } from '../../../package.json';\n\nexport const PLATFORM_LOG_STRING = {\n  [appName]: 'fire-core',\n  [analyticsName]: 'fire-analytics',\n  [authName]: 'fire-auth',\n  [databaseName]: 'fire-rtdb',\n  [functionsName]: 'fire-fn',\n  [installationsName]: 'fire-iid',\n  [messagingName]: 'fire-fcm',\n  [performanceName]: 'fire-perf',\n  [remoteConfigName]: 'fire-rc',\n  [storageName]: 'fire-gcs',\n  [firestoreName]: 'fire-fst',\n  'fire-js': 'fire-js', // Platform identifier for JS SDK.\n  [packageName]: 'fire-js-all'\n} as const;\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 {\n  FirebaseApp,\n  FirebaseOptions,\n  FirebaseAppConfig\n} from '@firebase/app-types';\nimport {\n  _FirebaseApp,\n  _FirebaseNamespace,\n  FirebaseService\n} from '@firebase/app-types/private';\nimport { deepCopy } from '@firebase/util';\nimport { ERROR_FACTORY, AppError } from '../errors';\nimport { DEFAULT_ENTRY_NAME } from '../constants';\nimport {\n  ComponentContainer,\n  Component,\n  ComponentType,\n  Name\n} from '@firebase/component';\n\ninterface ServicesCache {\n  [name: string]: {\n    [serviceName: string]: FirebaseService;\n  };\n}\n\n/**\n * Global context object for a collection of services using\n * a shared authentication state.\n */\nexport class FirebaseAppLiteImpl implements FirebaseApp {\n  private readonly options_: FirebaseOptions;\n  private readonly name_: string;\n  private isDeleted_ = false;\n  private automaticDataCollectionEnabled_: boolean;\n  private container: ComponentContainer;\n\n  // lite version has an empty INTERNAL namespace\n  readonly INTERNAL = {};\n\n  constructor(\n    options: FirebaseOptions,\n    config: FirebaseAppConfig,\n    private readonly firebase_: _FirebaseNamespace\n  ) {\n    this.name_ = config.name!;\n    this.automaticDataCollectionEnabled_ =\n      config.automaticDataCollectionEnabled || false;\n    this.options_ = deepCopy<FirebaseOptions>(options);\n    this.container = new ComponentContainer(config.name!);\n\n    // add itself to container\n    this.container.addComponent(\n      new Component('app', () => this, ComponentType.PUBLIC)\n    );\n    // populate ComponentContainer with existing components\n    for (const component of this.firebase_.INTERNAL.components.values()) {\n      this.container.addComponent(component);\n    }\n  }\n\n  get automaticDataCollectionEnabled(): boolean {\n    this.checkDestroyed_();\n    return this.automaticDataCollectionEnabled_;\n  }\n\n  set automaticDataCollectionEnabled(val) {\n    this.checkDestroyed_();\n    this.automaticDataCollectionEnabled_ = val;\n  }\n\n  get name(): string {\n    this.checkDestroyed_();\n    return this.name_;\n  }\n\n  get options(): FirebaseOptions {\n    this.checkDestroyed_();\n    return this.options_;\n  }\n\n  delete(): Promise<void> {\n    return new Promise(resolve => {\n      this.checkDestroyed_();\n      resolve();\n    })\n      .then(() => {\n        this.firebase_.INTERNAL.removeApp(this.name_);\n\n        return Promise.all(\n          this.container.getProviders().map(provider => provider.delete())\n        );\n      })\n      .then((): void => {\n        this.isDeleted_ = true;\n      });\n  }\n\n  /**\n   * Return a service instance associated with this app (creating it\n   * on demand), identified by the passed instanceIdentifier.\n   *\n   * NOTE: Currently storage is the only one that is leveraging this\n   * functionality. They invoke it by calling:\n   *\n   * ```javascript\n   * firebase.app().storage('STORAGE BUCKET ID')\n   * ```\n   *\n   * The service name is passed to this already\n   * @internal\n   */\n  _getService(\n    name: string,\n    instanceIdentifier: string = DEFAULT_ENTRY_NAME\n  ): FirebaseService {\n    this.checkDestroyed_();\n\n    // getImmediate will always succeed because _getService is only called for registered components.\n    return (this.container.getProvider(name as Name).getImmediate({\n      identifier: instanceIdentifier\n    }) as unknown) as FirebaseService;\n  }\n\n  /**\n   * This function will throw an Error if the App has already been deleted -\n   * use before performing API actions on the App.\n   */\n  private checkDestroyed_(): void {\n    if (this.isDeleted_) {\n      throw ERROR_FACTORY.create(AppError.APP_DELETED, { appName: this.name_ });\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 { Logger } from '@firebase/logger';\n\nexport const logger = new Logger('@firebase/app');\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 {\n  FirebaseApp,\n  FirebaseOptions,\n  FirebaseNamespace,\n  FirebaseAppConfig\n} from '@firebase/app-types';\nimport {\n  _FirebaseApp,\n  _FirebaseNamespace,\n  FirebaseService,\n  FirebaseServiceNamespace\n} from '@firebase/app-types/private';\nimport { deepExtend, contains } from '@firebase/util';\nimport { FirebaseAppImpl } from './firebaseApp';\nimport { ERROR_FACTORY, AppError } from './errors';\nimport { FirebaseAppLiteImpl } from './lite/firebaseAppLite';\nimport { DEFAULT_ENTRY_NAME, PLATFORM_LOG_STRING } from './constants';\nimport { version } from '../../firebase/package.json';\nimport { logger } from './logger';\nimport {\n  setUserLogHandler,\n  setLogLevel,\n  LogCallback,\n  LogOptions\n} from '@firebase/logger';\nimport { Component, ComponentType, Name } from '@firebase/component';\n\n/**\n * Because auth can't share code with other components, we attach the utility functions\n * in an internal namespace to share code.\n * This function return a firebase namespace object without\n * any utility functions, so it can be shared between the regular firebaseNamespace and\n * the lite version.\n */\nexport function createFirebaseNamespaceCore(\n  firebaseAppImpl: typeof FirebaseAppImpl | typeof FirebaseAppLiteImpl\n): FirebaseNamespace {\n  const apps: { [name: string]: FirebaseApp } = {};\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  const components = new Map<string, Component<any>>();\n\n  // A namespace is a plain JavaScript Object.\n  const namespace: FirebaseNamespace = {\n    // Hack to prevent Babel from modifying the object returned\n    // as the firebase namespace.\n    // @ts-ignore\n    __esModule: true,\n    initializeApp,\n    // @ts-ignore\n    app,\n    registerVersion,\n    setLogLevel,\n    onLog,\n    // @ts-ignore\n    apps: null,\n    SDK_VERSION: version,\n    INTERNAL: {\n      registerComponent,\n      removeApp,\n      components,\n      useAsService\n    }\n  };\n\n  // Inject a circular default export to allow Babel users who were previously\n  // using:\n  //\n  //   import firebase from 'firebase';\n  //   which becomes: var firebase = require('firebase').default;\n  //\n  // instead of\n  //\n  //   import * as firebase from 'firebase';\n  //   which becomes: var firebase = require('firebase');\n  // eslint-disable-next-line @typescript-eslint/no-explicit-any\n  (namespace as any)['default'] = namespace;\n\n  // firebase.apps is a read-only getter.\n  Object.defineProperty(namespace, 'apps', {\n    get: getApps\n  });\n\n  /**\n   * Called by App.delete() - but before any services associated with the App\n   * are deleted.\n   */\n  function removeApp(name: string): void {\n    delete apps[name];\n  }\n\n  /**\n   * Get the App object for a given name (or DEFAULT).\n   */\n  function app(name?: string): FirebaseApp {\n    name = name || DEFAULT_ENTRY_NAME;\n    if (!contains(apps, name)) {\n      throw ERROR_FACTORY.create(AppError.NO_APP, { appName: name });\n    }\n    return apps[name];\n  }\n\n  // @ts-ignore\n  app['App'] = firebaseAppImpl;\n  /**\n   * Create a new App instance (name must be unique).\n   */\n  function initializeApp(\n    options: FirebaseOptions,\n    config?: FirebaseAppConfig\n  ): FirebaseApp;\n  function initializeApp(options: FirebaseOptions, name?: string): FirebaseApp;\n  function initializeApp(\n    options: FirebaseOptions,\n    rawConfig = {}\n  ): FirebaseApp {\n    if (typeof rawConfig !== 'object' || rawConfig === null) {\n      const name = rawConfig;\n      rawConfig = { name };\n    }\n\n    const config = rawConfig as FirebaseAppConfig;\n\n    if (config.name === undefined) {\n      config.name = DEFAULT_ENTRY_NAME;\n    }\n\n    const { name } = config;\n\n    if (typeof name !== 'string' || !name) {\n      throw ERROR_FACTORY.create(AppError.BAD_APP_NAME, {\n        appName: String(name)\n      });\n    }\n\n    if (contains(apps, name)) {\n      throw ERROR_FACTORY.create(AppError.DUPLICATE_APP, { appName: name });\n    }\n\n    const app = new firebaseAppImpl(\n      options,\n      config,\n      namespace as _FirebaseNamespace\n    );\n\n    apps[name] = app;\n\n    return app;\n  }\n\n  /*\n   * Return an array of all the non-deleted FirebaseApps.\n   */\n  function getApps(): FirebaseApp[] {\n    // Make a copy so caller cannot mutate the apps list.\n    return Object.keys(apps).map(name => apps[name]);\n  }\n\n  function registerComponent(\n    component: Component\n  ): FirebaseServiceNamespace<FirebaseService> | null {\n    const componentName = component.name;\n    if (components.has(componentName)) {\n      logger.debug(\n        `There were multiple attempts to register component ${componentName}.`\n      );\n\n      return component.type === ComponentType.PUBLIC\n        ? // eslint-disable-next-line @typescript-eslint/no-explicit-any\n          (namespace as any)[componentName]\n        : null;\n    }\n\n    components.set(componentName, component);\n\n    // create service namespace for public components\n    if (component.type === ComponentType.PUBLIC) {\n      // The Service namespace is an accessor function ...\n      const serviceNamespace = (\n        appArg: FirebaseApp = app()\n      ): FirebaseService => {\n        // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        if (typeof (appArg as any)[componentName] !== 'function') {\n          // Invalid argument.\n          // This happens in the following case: firebase.storage('gs:/')\n          throw ERROR_FACTORY.create(AppError.INVALID_APP_ARGUMENT, {\n            appName: componentName\n          });\n        }\n\n        // Forward service instance lookup to the FirebaseApp.\n        // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        return (appArg as any)[componentName]();\n      };\n\n      // ... and a container for service-level properties.\n      if (component.serviceProps !== undefined) {\n        deepExtend(serviceNamespace, component.serviceProps);\n      }\n\n      // eslint-disable-next-line @typescript-eslint/no-explicit-any\n      (namespace as any)[componentName] = serviceNamespace;\n\n      // Patch the FirebaseAppImpl prototype\n      // eslint-disable-next-line @typescript-eslint/no-explicit-any\n      (firebaseAppImpl.prototype as any)[componentName] =\n        // TODO: The eslint disable can be removed and the 'ignoreRestArgs'\n        // option added to the no-explicit-any rule when ESlint releases it.\n        // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        function(...args: any) {\n          const serviceFxn = this._getService.bind(this, componentName);\n          return serviceFxn.apply(\n            this,\n            component.multipleInstances ? args : []\n          );\n        };\n    }\n\n    // add the component to existing app instances\n    for (const appName of Object.keys(apps)) {\n      (apps[appName] as _FirebaseApp)._addComponent(component);\n    }\n\n    return component.type === ComponentType.PUBLIC\n      ? // eslint-disable-next-line @typescript-eslint/no-explicit-any\n        (namespace as any)[componentName]\n      : null;\n  }\n\n  function registerVersion(\n    libraryKeyOrName: string,\n    version: string,\n    variant?: string\n  ): void {\n    // TODO: We can use this check to whitelist strings when/if we set up\n    // a good whitelist system.\n    let library = PLATFORM_LOG_STRING[libraryKeyOrName] ?? libraryKeyOrName;\n    if (variant) {\n      library += `-${variant}`;\n    }\n    const libraryMismatch = library.match(/\\s|\\//);\n    const versionMismatch = version.match(/\\s|\\//);\n    if (libraryMismatch || versionMismatch) {\n      const warning = [\n        `Unable to register library \"${library}\" with version \"${version}\":`\n      ];\n      if (libraryMismatch) {\n        warning.push(\n          `library name \"${library}\" contains illegal characters (whitespace or \"/\")`\n        );\n      }\n      if (libraryMismatch && versionMismatch) {\n        warning.push('and');\n      }\n      if (versionMismatch) {\n        warning.push(\n          `version name \"${version}\" contains illegal characters (whitespace or \"/\")`\n        );\n      }\n      logger.warn(warning.join(' '));\n      return;\n    }\n    registerComponent(\n      new Component(\n        `${library}-version` as Name,\n        () => ({ library, version }),\n        ComponentType.VERSION\n      )\n    );\n  }\n\n  function onLog(logCallback: LogCallback | null, options?: LogOptions): void {\n    if (logCallback !== null && typeof logCallback !== 'function') {\n      throw ERROR_FACTORY.create(AppError.INVALID_LOG_ARGUMENT, {\n        appName: name\n      });\n    }\n    setUserLogHandler(logCallback, options);\n  }\n\n  // Map the requested service to a registered service name\n  // (used to map auth to serverAuth service when needed).\n  function useAsService(app: FirebaseApp, name: string): string | null {\n    if (name === 'serverAuth') {\n      return null;\n    }\n\n    const useService = name;\n\n    return useService;\n  }\n\n  return namespace;\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 {\n  ComponentContainer,\n  ComponentType,\n  Provider,\n  Name\n} from '@firebase/component';\n\nexport class PlatformLoggerService {\n  constructor(private readonly container: ComponentContainer) {}\n  // In initial implementation, this will be called by installations on\n  // auth token refresh, and installations will send this string.\n  getPlatformInfoString(): string {\n    const providers = this.container.getProviders();\n    // Loop through providers and get library/version pairs from any that are\n    // version components.\n    return providers\n      .map(provider => {\n        if (isVersionServiceProvider(provider)) {\n          const service = provider.getImmediate();\n          return `${service.library}/${service.version}`;\n        } else {\n          return null;\n        }\n      })\n      .filter(logString => logString)\n      .join(' ');\n  }\n}\n/**\n *\n * @param provider check if this provider provides a VersionService\n *\n * NOTE: Using Provider<'app-version'> is a hack to indicate that the provider\n * provides VersionService. The provider is not necessarily a 'app-version'\n * provider.\n */\nfunction isVersionServiceProvider(\n  provider: Provider<Name>\n): provider is Provider<'app-version'> {\n  const component = provider.getComponent();\n  return component?.type === ComponentType.VERSION;\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 { createFirebaseNamespaceLite } from './src/lite/firebaseNamespaceLite';\nimport { registerCoreComponents } from './src/registerCoreComponents';\n\nexport const firebase = createFirebaseNamespaceLite();\n\nregisterCoreComponents(firebase, 'lite');\n\n// eslint-disable-next-line import/no-default-export\nexport default firebase;\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 { FirebaseNamespace } from '@firebase/app-types';\nimport {\n  _FirebaseApp,\n  _FirebaseNamespace,\n  FirebaseServiceNamespace,\n  FirebaseService\n} from '@firebase/app-types/private';\nimport { FirebaseAppLiteImpl } from './firebaseAppLite';\nimport { createFirebaseNamespaceCore } from '../firebaseNamespaceCore';\nimport { Component, ComponentType } from '@firebase/component';\n\nexport function createFirebaseNamespaceLite(): FirebaseNamespace {\n  const namespace = createFirebaseNamespaceCore(FirebaseAppLiteImpl);\n\n  namespace.SDK_VERSION = `${namespace.SDK_VERSION}_LITE`;\n\n  const registerComponent = (namespace as _FirebaseNamespace).INTERNAL\n    .registerComponent;\n  (namespace as _FirebaseNamespace).INTERNAL.registerComponent = registerComponentForLite;\n\n  /**\n   * This is a special implementation, so it only works with performance.\n   * only allow performance SDK to register.\n   */\n  function registerComponentForLite(\n    // eslint-disable-next-line @typescript-eslint/no-explicit-any\n    component: Component<any>\n  ): FirebaseServiceNamespace<FirebaseService> | null {\n    // only allow performance to register with firebase lite\n    if (\n      component.type === ComponentType.PUBLIC &&\n      component.name !== 'performance' &&\n      component.name !== 'installations'\n    ) {\n      throw Error(`${name} cannot register with the standalone perf instance`);\n    }\n\n    return registerComponent(component);\n  }\n\n  return namespace;\n}\n","function toArray(arr) {\n  return Array.prototype.slice.call(arr);\n}\n\nfunction promisifyRequest(request) {\n  return new Promise(function(resolve, reject) {\n    request.onsuccess = function() {\n      resolve(request.result);\n    };\n\n    request.onerror = function() {\n      reject(request.error);\n    };\n  });\n}\n\nfunction promisifyRequestCall(obj, method, args) {\n  var request;\n  var p = new Promise(function(resolve, reject) {\n    request = obj[method].apply(obj, args);\n    promisifyRequest(request).then(resolve, reject);\n  });\n\n  p.request = request;\n  return p;\n}\n\nfunction promisifyCursorRequestCall(obj, method, args) {\n  var p = promisifyRequestCall(obj, method, args);\n  return p.then(function(value) {\n    if (!value) return;\n    return new Cursor(value, p.request);\n  });\n}\n\nfunction proxyProperties(ProxyClass, targetProp, properties) {\n  properties.forEach(function(prop) {\n    Object.defineProperty(ProxyClass.prototype, prop, {\n      get: function() {\n        return this[targetProp][prop];\n      },\n      set: function(val) {\n        this[targetProp][prop] = val;\n      }\n    });\n  });\n}\n\nfunction proxyRequestMethods(ProxyClass, targetProp, Constructor, properties) {\n  properties.forEach(function(prop) {\n    if (!(prop in Constructor.prototype)) return;\n    ProxyClass.prototype[prop] = function() {\n      return promisifyRequestCall(this[targetProp], prop, arguments);\n    };\n  });\n}\n\nfunction proxyMethods(ProxyClass, targetProp, Constructor, properties) {\n  properties.forEach(function(prop) {\n    if (!(prop in Constructor.prototype)) return;\n    ProxyClass.prototype[prop] = function() {\n      return this[targetProp][prop].apply(this[targetProp], arguments);\n    };\n  });\n}\n\nfunction proxyCursorRequestMethods(ProxyClass, targetProp, Constructor, properties) {\n  properties.forEach(function(prop) {\n    if (!(prop in Constructor.prototype)) return;\n    ProxyClass.prototype[prop] = function() {\n      return promisifyCursorRequestCall(this[targetProp], prop, arguments);\n    };\n  });\n}\n\nfunction Index(index) {\n  this._index = index;\n}\n\nproxyProperties(Index, '_index', [\n  'name',\n  'keyPath',\n  'multiEntry',\n  'unique'\n]);\n\nproxyRequestMethods(Index, '_index', IDBIndex, [\n  'get',\n  'getKey',\n  'getAll',\n  'getAllKeys',\n  'count'\n]);\n\nproxyCursorRequestMethods(Index, '_index', IDBIndex, [\n  'openCursor',\n  'openKeyCursor'\n]);\n\nfunction Cursor(cursor, request) {\n  this._cursor = cursor;\n  this._request = request;\n}\n\nproxyProperties(Cursor, '_cursor', [\n  'direction',\n  'key',\n  'primaryKey',\n  'value'\n]);\n\nproxyRequestMethods(Cursor, '_cursor', IDBCursor, [\n  'update',\n  'delete'\n]);\n\n// proxy 'next' methods\n['advance', 'continue', 'continuePrimaryKey'].forEach(function(methodName) {\n  if (!(methodName in IDBCursor.prototype)) return;\n  Cursor.prototype[methodName] = function() {\n    var cursor = this;\n    var args = arguments;\n    return Promise.resolve().then(function() {\n      cursor._cursor[methodName].apply(cursor._cursor, args);\n      return promisifyRequest(cursor._request).then(function(value) {\n        if (!value) return;\n        return new Cursor(value, cursor._request);\n      });\n    });\n  };\n});\n\nfunction ObjectStore(store) {\n  this._store = store;\n}\n\nObjectStore.prototype.createIndex = function() {\n  return new Index(this._store.createIndex.apply(this._store, arguments));\n};\n\nObjectStore.prototype.index = function() {\n  return new Index(this._store.index.apply(this._store, arguments));\n};\n\nproxyProperties(ObjectStore, '_store', [\n  'name',\n  'keyPath',\n  'indexNames',\n  'autoIncrement'\n]);\n\nproxyRequestMethods(ObjectStore, '_store', IDBObjectStore, [\n  'put',\n  'add',\n  'delete',\n  'clear',\n  'get',\n  'getAll',\n  'getKey',\n  'getAllKeys',\n  'count'\n]);\n\nproxyCursorRequestMethods(ObjectStore, '_store', IDBObjectStore, [\n  'openCursor',\n  'openKeyCursor'\n]);\n\nproxyMethods(ObjectStore, '_store', IDBObjectStore, [\n  'deleteIndex'\n]);\n\nfunction Transaction(idbTransaction) {\n  this._tx = idbTransaction;\n  this.complete = new Promise(function(resolve, reject) {\n    idbTransaction.oncomplete = function() {\n      resolve();\n    };\n    idbTransaction.onerror = function() {\n      reject(idbTransaction.error);\n    };\n    idbTransaction.onabort = function() {\n      reject(idbTransaction.error);\n    };\n  });\n}\n\nTransaction.prototype.objectStore = function() {\n  return new ObjectStore(this._tx.objectStore.apply(this._tx, arguments));\n};\n\nproxyProperties(Transaction, '_tx', [\n  'objectStoreNames',\n  'mode'\n]);\n\nproxyMethods(Transaction, '_tx', IDBTransaction, [\n  'abort'\n]);\n\nfunction UpgradeDB(db, oldVersion, transaction) {\n  this._db = db;\n  this.oldVersion = oldVersion;\n  this.transaction = new Transaction(transaction);\n}\n\nUpgradeDB.prototype.createObjectStore = function() {\n  return new ObjectStore(this._db.createObjectStore.apply(this._db, arguments));\n};\n\nproxyProperties(UpgradeDB, '_db', [\n  'name',\n  'version',\n  'objectStoreNames'\n]);\n\nproxyMethods(UpgradeDB, '_db', IDBDatabase, [\n  'deleteObjectStore',\n  'close'\n]);\n\nfunction DB(db) {\n  this._db = db;\n}\n\nDB.prototype.transaction = function() {\n  return new Transaction(this._db.transaction.apply(this._db, arguments));\n};\n\nproxyProperties(DB, '_db', [\n  'name',\n  'version',\n  'objectStoreNames'\n]);\n\nproxyMethods(DB, '_db', IDBDatabase, [\n  'close'\n]);\n\n// Add cursor iterators\n// TODO: remove this once browsers do the right thing with promises\n['openCursor', 'openKeyCursor'].forEach(function(funcName) {\n  [ObjectStore, Index].forEach(function(Constructor) {\n    // Don't create iterateKeyCursor if openKeyCursor doesn't exist.\n    if (!(funcName in Constructor.prototype)) return;\n\n    Constructor.prototype[funcName.replace('open', 'iterate')] = function() {\n      var args = toArray(arguments);\n      var callback = args[args.length - 1];\n      var nativeObject = this._store || this._index;\n      var request = nativeObject[funcName].apply(nativeObject, args.slice(0, -1));\n      request.onsuccess = function() {\n        callback(request.result);\n      };\n    };\n  });\n});\n\n// polyfill getAll\n[Index, ObjectStore].forEach(function(Constructor) {\n  if (Constructor.prototype.getAll) return;\n  Constructor.prototype.getAll = function(query, count) {\n    var instance = this;\n    var items = [];\n\n    return new Promise(function(resolve) {\n      instance.iterateCursor(query, function(cursor) {\n        if (!cursor) {\n          resolve(items);\n          return;\n        }\n        items.push(cursor.value);\n\n        if (count !== undefined && items.length == count) {\n          resolve(items);\n          return;\n        }\n        cursor.continue();\n      });\n    });\n  };\n});\n\nexport function openDb(name, version, upgradeCallback) {\n  var p = promisifyRequestCall(indexedDB, 'open', [name, version]);\n  var request = p.request;\n\n  if (request) {\n    request.onupgradeneeded = function(event) {\n      if (upgradeCallback) {\n        upgradeCallback(new UpgradeDB(request.result, event.oldVersion, request.transaction));\n      }\n    };\n  }\n\n  return p.then(function(db) {\n    return new DB(db);\n  });\n}\n\nexport function deleteDb(name) {\n  return promisifyRequestCall(indexedDB, 'deleteDatabase', [name]);\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 { FirebaseNamespace } from '@firebase/app-types';\nimport { _FirebaseNamespace } from '@firebase/app-types/private';\nimport { Component, ComponentType } from '@firebase/component';\nimport { PlatformLoggerService } from './platformLoggerService';\nimport { name, version } from '../package.json';\n\nexport function registerCoreComponents(\n  firebase: FirebaseNamespace,\n  variant?: string\n): void {\n  (firebase as _FirebaseNamespace).INTERNAL.registerComponent(\n    new Component(\n      'platform-logger',\n      container => new PlatformLoggerService(container),\n      ComponentType.PRIVATE\n    )\n  );\n  // Register `app` package.\n  firebase.registerVersion(name, version, variant);\n  // Register platform SDK identifier (no version).\n  firebase.registerVersion('fire-js', '');\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 { 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 & 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:${version}`;\nexport const INTERNAL_AUTH_VERSION = 'FIS_v2';\n\nexport const INSTALLATIONS_API_URL =\n  'https://firebaseinstallations.googleapis.com/v1';\n\nexport const TOKEN_EXPIRATION_BUFFER = 60 * 60 * 1000; // One hour\n\nexport const SERVICE = 'installations';\nexport const SERVICE_NAME = 'Installations';\n","/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { FirebaseError } from '@firebase/util';\nimport { GenerateAuthTokenResponse } from '../interfaces/api-response';\nimport { AppConfig } from '../interfaces/app-config';\nimport {\n  CompletedAuthToken,\n  RegisteredInstallationEntry,\n  RequestStatus\n} from '../interfaces/installation-entry';\nimport {\n  INSTALLATIONS_API_URL,\n  INTERNAL_AUTH_VERSION\n} from '../util/constants';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport function getInstallationsEndpoint({ projectId }: AppConfig): string {\n  return `${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/app-config';\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/app-config';\nimport { IdChangeCallbackFn } from '../functions';\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 { DB, openDb } from 'idb';\nimport { AppConfig } from '../interfaces/app-config';\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\nlet dbPromise: Promise<DB> | null = null;\nfunction getDbPromise(): Promise<DB> {\n  if (!dbPromise) {\n    dbPromise = openDb(DATABASE_NAME, DATABASE_VERSION, upgradeDB => {\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 (upgradeDB.oldVersion) {\n        case 0:\n          upgradeDB.createObjectStore(OBJECT_STORE_NAME);\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);\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);\n  await objectStore.put(value, key);\n  await tx.complete;\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.complete;\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(key);\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.complete;\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.complete;\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 '../api/create-installation-request';\nimport { AppConfig } from '../interfaces/app-config';\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  appConfig: AppConfig\n): Promise<InstallationEntryWithRegistrationPromise> {\n  let registrationPromise: Promise<RegisteredInstallationEntry> | undefined;\n\n  const installationEntry = await update(appConfig, oldEntry => {\n    const installationEntry = updateOrCreateInstallationEntry(oldEntry);\n    const entryWithPromise = triggerRegistrationIfNecessary(\n      appConfig,\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  appConfig: AppConfig,\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      appConfig,\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(appConfig)\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  appConfig: AppConfig,\n  installationEntry: InProgressInstallationEntry\n): Promise<RegisteredInstallationEntry> {\n  try {\n    const registeredInstallationEntry = await createInstallationRequest(\n      appConfig,\n      installationEntry\n    );\n    return set(appConfig, registeredInstallationEntry);\n  } catch (e) {\n    if (isServerError(e) && e.serverCode === 409) {\n      // Server returned a \"FID can not be used\" error.\n      // Generate a new ID next time.\n      await remove(appConfig);\n    } else {\n      // Registration failed. Set FID as not registered.\n      await set(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  appConfig: AppConfig\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(appConfig);\n  while (entry.registrationStatus === RequestStatus.IN_PROGRESS) {\n    // createInstallation request still in progress.\n    await sleep(100);\n\n    entry = await updateInstallationRequest(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 {\n      installationEntry,\n      registrationPromise\n    } = await getInstallationEntry(appConfig);\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 { AppConfig } from '../interfaces/app-config';\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';\n\nexport async function createInstallationRequest(\n  appConfig: AppConfig,\n  { fid }: InProgressInstallationEntry\n): Promise<RegisteredInstallationEntry> {\n  const endpoint = getInstallationsEndpoint(appConfig);\n\n  const headers = getHeaders(appConfig);\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 { AppConfig } from '../interfaces/app-config';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\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';\n\nexport async function generateAuthTokenRequest(\n  { appConfig, platformLoggerProvider }: FirebaseDependencies,\n  installationEntry: RegisteredInstallationEntry\n): Promise<CompletedAuthToken> {\n  const endpoint = getGenerateAuthTokenEndpoint(appConfig, installationEntry);\n\n  const headers = getHeadersWithAuth(appConfig, installationEntry);\n\n  // If platform logger exists, add the platform info string to the header.\n  const platformLogger = platformLoggerProvider.getImmediate({\n    optional: true\n  });\n  if (platformLogger) {\n    headers.append('x-firebase-client', platformLogger.getPlatformInfoString());\n  }\n\n  const body = {\n    installation: {\n      sdkVersion: PACKAGE_VERSION\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 = extractAuthTokenInfoFromResponse(\n      responseValue\n    );\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 '../api/generate-auth-token-request';\nimport { AppConfig } from '../interfaces/app-config';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\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  dependencies: FirebaseDependencies,\n  forceRefresh = false\n): Promise<CompletedAuthToken> {\n  let tokenPromise: Promise<CompletedAuthToken> | undefined;\n  const entry = await update(dependencies.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(dependencies, 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(dependencies, 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  dependencies: FirebaseDependencies,\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(dependencies.appConfig);\n  while (entry.authToken.requestStatus === RequestStatus.IN_PROGRESS) {\n    // generateAuthToken still in progress.\n    await sleep(100);\n\n    entry = await updateAuthTokenRequest(dependencies.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(dependencies, 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  dependencies: FirebaseDependencies,\n  installationEntry: RegisteredInstallationEntry\n): Promise<CompletedAuthToken> {\n  try {\n    const authToken = await generateAuthTokenRequest(\n      dependencies,\n      installationEntry\n    );\n    const updatedInstallationEntry: RegisteredInstallationEntry = {\n      ...installationEntry,\n      authToken\n    };\n    await set(dependencies.appConfig, updatedInstallationEntry);\n    return authToken;\n  } catch (e) {\n    if (isServerError(e) && (e.serverCode === 401 || e.serverCode === 404)) {\n      // Server returned a \"FID not found\" or a \"Invalid authentication\" error.\n      // Generate a new ID next time.\n      await remove(dependencies.appConfig);\n    } else {\n      const updatedInstallationEntry: RegisteredInstallationEntry = {\n        ...installationEntry,\n        authToken: { requestStatus: RequestStatus.NOT_STARTED }\n      };\n      await set(dependencies.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 { AppConfig } from '../interfaces/app-config';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\n\nexport async function getToken(\n  dependencies: FirebaseDependencies,\n  forceRefresh = false\n): Promise<string> {\n  await completeInstallationRegistration(dependencies.appConfig);\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(dependencies, forceRefresh);\n  return authToken.token;\n}\n\nasync function completeInstallationRegistration(\n  appConfig: AppConfig\n): Promise<void> {\n  const { registrationPromise } = await getInstallationEntry(appConfig);\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 { AppConfig } from '../interfaces/app-config';\nimport { RegisteredInstallationEntry } from '../interfaces/installation-entry';\nimport {\n  getErrorFromResponse,\n  getHeadersWithAuth,\n  getInstallationsEndpoint,\n  retryIfServerError\n} from './common';\n\nexport async function deleteInstallationRequest(\n  appConfig: AppConfig,\n  installationEntry: RegisteredInstallationEntry\n): Promise<void> {\n  const endpoint = getDeleteEndpoint(appConfig, installationEntry);\n\n  const headers = getHeadersWithAuth(appConfig, installationEntry);\n  const request: RequestInit = {\n    method: 'DELETE',\n    headers\n  };\n\n  const response = await retryIfServerError(() => fetch(endpoint, request));\n  if (!response.ok) {\n    throw await getErrorFromResponse('Delete Installation', response);\n  }\n}\n\nfunction getDeleteEndpoint(\n  appConfig: AppConfig,\n  { fid }: RegisteredInstallationEntry\n): string {\n  return `${getInstallationsEndpoint(appConfig)}/${fid}`;\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 { addCallback, removeCallback } from '../helpers/fid-changed';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\n\nexport type IdChangeCallbackFn = (installationId: string) => void;\nexport type IdChangeUnsubscribeFn = () => void;\n\n/**\n * Sets a new callback that will get called when Installation ID changes.\n * Returns an unsubscribe function that will remove the callback when called.\n */\nexport function onIdChange(\n  { appConfig }: FirebaseDependencies,\n  callback: IdChangeCallbackFn\n): IdChangeUnsubscribeFn {\n  addCallback(appConfig, callback);\n\n  return () => {\n    removeCallback(appConfig, callback);\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-types';\nimport { FirebaseError } from '@firebase/util';\nimport { AppConfig } from '../interfaces/app-config';\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 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 firebase from '@firebase/app';\nimport {\n  _FirebaseNamespace,\n  FirebaseService\n} from '@firebase/app-types/private';\nimport { Component, ComponentType } from '@firebase/component';\nimport { FirebaseInstallations } from '@firebase/installations-types';\nimport {\n  deleteInstallation,\n  getId,\n  getToken,\n  IdChangeCallbackFn,\n  IdChangeUnsubscribeFn,\n  onIdChange\n} from './functions';\nimport { extractAppConfig } from './helpers/extract-app-config';\nimport { FirebaseDependencies } from './interfaces/firebase-dependencies';\n\nimport { name, version } from '../package.json';\n\nexport function registerInstallations(instance: _FirebaseNamespace): void {\n  const installationsName = 'installations';\n\n  instance.INTERNAL.registerComponent(\n    new Component(\n      installationsName,\n      container => {\n        const app = container.getProvider('app').getImmediate();\n\n        // Throws if app isn't configured properly.\n        const appConfig = extractAppConfig(app);\n        const platformLoggerProvider = container.getProvider('platform-logger');\n        const dependencies: FirebaseDependencies = {\n          appConfig,\n          platformLoggerProvider\n        };\n\n        const installations: FirebaseInstallations & FirebaseService = {\n          app,\n          getId: () => getId(dependencies),\n          getToken: (forceRefresh?: boolean) =>\n            getToken(dependencies, forceRefresh),\n          delete: () => deleteInstallation(dependencies),\n          onIdChange: (callback: IdChangeCallbackFn): IdChangeUnsubscribeFn =>\n            onIdChange(dependencies, callback)\n        };\n        return installations;\n      },\n      ComponentType.PUBLIC\n    )\n  );\n\n  instance.registerVersion(name, version);\n}\n\nregisterInstallations(firebase as _FirebaseNamespace);\n\n/**\n * Define extension behavior of `registerInstallations`\n */\ndeclare module '@firebase/app-types' {\n  interface FirebaseNamespace {\n    installations(app?: FirebaseApp): FirebaseInstallations;\n  }\n  interface FirebaseApp {\n    installations(): FirebaseInstallations;\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 { FirebaseDependencies } from '../interfaces/firebase-dependencies';\n\nexport async function getId(\n  dependencies: FirebaseDependencies\n): Promise<string> {\n  const { installationEntry, registrationPromise } = await getInstallationEntry(\n    dependencies.appConfig\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(dependencies).catch(console.error);\n  }\n\n  return installationEntry.fid;\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 { deleteInstallationRequest } from '../api/delete-installation-request';\nimport { remove, update } from '../helpers/idb-manager';\nimport { FirebaseDependencies } from '../interfaces/firebase-dependencies';\nimport { RequestStatus } from '../interfaces/installation-entry';\nimport { ERROR_FACTORY, ErrorCode } from '../util/errors';\n\nexport async function deleteInstallation(\n  dependencies: FirebaseDependencies\n): Promise<void> {\n  const { appConfig } = dependencies;\n\n  const entry = await update(appConfig, oldEntry => {\n    if (oldEntry && oldEntry.registrationStatus === RequestStatus.NOT_STARTED) {\n      // Delete the unregistered entry without sending a deleteInstallation request.\n      return undefined;\n    }\n    return oldEntry;\n  });\n\n  if (entry) {\n    if (entry.registrationStatus === RequestStatus.IN_PROGRESS) {\n      // Can't delete while trying to register.\n      throw ERROR_FACTORY.create(ErrorCode.DELETE_PENDING_REGISTRATION);\n    } else if (entry.registrationStatus === RequestStatus.COMPLETED) {\n      if (!navigator.onLine) {\n        throw ERROR_FACTORY.create(ErrorCode.APP_OFFLINE);\n      } else {\n        await deleteInstallationRequest(appConfig, entry);\n        await remove(appConfig);\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 */\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  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}\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.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};\n\ninterface ErrorParams {\n  [ErrorCode.TRACE_STARTED_BEFORE]: { traceName: string };\n  [ErrorCode.TRACE_STOPPED_BEFORE]: { 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 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 { 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 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 { ERROR_FACTORY, ErrorCode } from '../utils/errors';\n\ndeclare global {\n  interface Window {\n    PerformanceObserver: typeof PerformanceObserver;\n    perfMetrics?: { onFirstInputDelay: Function };\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?: Function;\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 && this.navigator && this.navigator.cookieEnabled) {\n      return true;\n    }\n    return false;\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 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 } from '@firebase/app-types';\nimport { ERROR_FACTORY, ErrorCode } from '../utils/errors';\nimport { FirebaseInstallations } from '@firebase/installations-types';\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  firebaseAppInstance!: FirebaseApp;\n\n  installationsService!: FirebaseInstallations;\n\n  getAppId(): string {\n    const appId =\n      this.firebaseAppInstance &&\n      this.firebaseAppInstance.options &&\n      this.firebaseAppInstance.options.appId;\n    if (!appId) {\n      throw ERROR_FACTORY.create(ErrorCode.NO_APP_ID);\n    }\n    return appId;\n  }\n\n  getProjectId(): string {\n    const projectId =\n      this.firebaseAppInstance &&\n      this.firebaseAppInstance.options &&\n      this.firebaseAppInstance.options.projectId;\n    if (!projectId) {\n      throw ERROR_FACTORY.create(ErrorCode.NO_PROJECT_ID);\n    }\n    return projectId;\n  }\n\n  getApiKey(): string {\n    const apiKey =\n      this.firebaseAppInstance &&\n      this.firebaseAppInstance.options &&\n      this.firebaseAppInstance.options.apiKey;\n    if (!apiKey) {\n      throw ERROR_FACTORY.create(ErrorCode.NO_API_KEY);\n    }\n    return apiKey;\n  }\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 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 { SettingsService } from './settings_service';\n\nlet iid: string | undefined;\nlet authToken: string | undefined;\n\nexport function getIidPromise(): Promise<string> {\n  const iidPromise = SettingsService.getInstance().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(): Promise<string> {\n  const authTokenPromise = SettingsService.getInstance().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 { 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 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 { 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 NetworkInformation {\n  readonly effectiveType?: 'slow-2g' | '2g' | '3g' | '4g';\n}\n\ninterface NavigatorWithConnection extends Navigator {\n  readonly connection: NetworkInformation;\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 ('serviceWorker' in navigator) {\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 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 { 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 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 {\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';\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(iid: string): Promise<void> {\n  const config = getStoredConfig();\n  if (config) {\n    processConfig(config);\n    return Promise.resolve();\n  }\n\n  return getRemoteConfig(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  iid: string\n): Promise<RemoteConfigResponse | undefined> {\n  // Perf needs auth token only to retrieve remote config.\n  return getAuthTokenPromise()\n    .then(authToken => {\n      const projectId = SettingsService.getInstance().getProjectId();\n      const configEndPoint = `https://firebaseremoteconfig.googleapis.com/v1/projects/${projectId}/namespaces/fireperf:fetch?key=${SettingsService.getInstance().getApiKey()}`;\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: SettingsService.getInstance().getAppId(),\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 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 { getIidPromise } from './iid_service';\nimport { getConfig } from './remote_config_service';\nimport { Api } from './api_service';\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(): Promise<void> {\n  initializationStatus = InitializationStatus.initializationPending;\n\n  initializationPromise = initializationPromise || initializePerf();\n\n  return initializationPromise;\n}\n\nexport function isPerfInitialized(): boolean {\n  return initializationStatus === InitializationStatus.initialized;\n}\n\nfunction initializePerf(): Promise<void> {\n  return getDocumentReadyComplete()\n    .then(() => getIidPromise())\n    .then(iid => getConfig(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 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 { 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;\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  // Capture a snapshot of the queue and empty the \"official queue\".\n  const staged = [...queue];\n  queue = [];\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 = 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 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 { 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';\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  // Only log the page load auto traces if page is visible.\n  if (trace.isAuto && getVisibilityState() !== VisibilityState.VISIBLE) {\n    return;\n  }\n\n  if (\n    !settingsService.loggingEnabled ||\n    !settingsService.logTraceAfterSampling\n  ) {\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().then(\n      () => sendTraceLog(trace),\n      () => sendTraceLog(trace)\n    );\n  }\n}\n\nfunction sendTraceLog(trace: Trace): void {\n  if (getIid()) {\n    setTimeout(() => sendLog(trace, ResourceType.Trace), 0);\n  }\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    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(),\n    trace_metric: traceMetric\n  };\n  return JSON.stringify(perfMetric);\n}\n\nfunction getApplicationInfo(): ApplicationInfo {\n  return {\n    google_app_id: SettingsService.getInstance().getAppId(),\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 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 {\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';\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 * @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 {\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 { isValidMetricName } from '../utils/metric_utils';\nimport { PerformanceTrace } from '@firebase/performance-types';\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 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 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    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 metric of Object.keys(options.metrics)) {\n        if (!isNaN(Number(options.metrics[metric]))) {\n          this.counters[metric] = Number(Math.floor(options.metrics[metric]));\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.\n   * @param counter Name of the custom metric\n   * @param num Increment by value\n   */\n  incrementMetric(counter: string, num = 1): void {\n    if (this.counters[counter] === undefined) {\n      this.putMetric(counter, 0);\n    }\n    this.counters[counter] += num;\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.\n   * @param counter Name of the custom metric\n   * @param num Set custom metric to this value\n   */\n  putMetric(counter: string, num: number): void {\n    if (isValidMetricName(counter, this.name)) {\n      this.counters[counter] = num;\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    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(OOB_TRACE_PAGE_LOAD_PREFIX + route, true);\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(measureName: string): void {\n    const trace = new Trace(measureName, false, measureName);\n    logTrace(trace);\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 { Api } from '../services/api_service';\nimport { logNetworkRequest } from '../services/perf_logger';\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  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(entry: PerformanceEntry): 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    url,\n    responsePayloadBytes: performanceEntry.transferSize,\n    startTimeUs,\n    timeToResponseInitiatedUs,\n    timeToResponseCompletedUs\n  };\n\n  logNetworkRequest(networkRequest);\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 { 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';\n\nconst FID_WAIT_TIME_MS = 5000;\n\nexport function setupOobResources(): 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(), 0);\n  setTimeout(() => setupNetworkRequests(), 0);\n  setTimeout(() => setupUserTimingTraces(), 0);\n}\n\nfunction setupNetworkRequests(): void {\n  const api = Api.getInstance();\n  const resources = api.getEntriesByType('resource');\n  for (const resource of resources) {\n    createNetworkRequestEntry(resource);\n  }\n  api.setupObserver('resource', createNetworkRequestEntry);\n}\n\nfunction setupOobTraces(): 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(navigationTimings, paintTimings);\n      timeoutId = undefined;\n    }, FID_WAIT_TIME_MS);\n    api.onFirstInputDelay((fid: number) => {\n      if (timeoutId) {\n        clearTimeout(timeoutId);\n        Trace.createOobTrace(navigationTimings, paintTimings, fid);\n      }\n    });\n  } else {\n    Trace.createOobTrace(navigationTimings, paintTimings);\n  }\n}\n\nfunction setupUserTimingTraces(): 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(measure);\n  }\n  // Setup an observer to capture the measures from this point on.\n  api.setupObserver('measure', createUserTimingTrace);\n}\n\nfunction createUserTimingTrace(measure: PerformanceEntry): 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(measureName);\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 { Trace } from '../resources/trace';\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-types';\nimport { FirebasePerformance } from '@firebase/performance-types';\nimport { consoleLogger } from '../utils/console_logger';\nimport { setupTransportService } from '../services/transport_service';\n\nexport class PerformanceController implements FirebasePerformance {\n  constructor(readonly app: FirebaseApp) {\n    if (Api.getInstance().requiredApisAvailable()) {\n      setupTransportService();\n      getInitializationPromise().then(setupOobResources, setupOobResources);\n    } else {\n      consoleLogger.info(\n        'Firebase Performance cannot start if browser does not support fetch and Promise or cookie is disabled.'\n      );\n    }\n  }\n\n  trace(name: string): Trace {\n    return new Trace(name);\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 * @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 firebase from '@firebase/app';\nimport '@firebase/installations';\nimport { FirebaseApp, FirebaseNamespace } from '@firebase/app-types';\nimport { _FirebaseNamespace } from '@firebase/app-types/private';\nimport { PerformanceController } from './src/controllers/perf';\nimport { setupApi } from './src/services/api_service';\nimport { SettingsService } from './src/services/settings_service';\nimport { ERROR_FACTORY, ErrorCode } from './src/utils/errors';\nimport { FirebasePerformance } from '@firebase/performance-types';\nimport { Component, ComponentType } from '@firebase/component';\nimport { FirebaseInstallations } from '@firebase/installations-types';\n\nimport { name, version } from './package.json';\n\nconst DEFAULT_ENTRY_NAME = '[DEFAULT]';\n\nexport function registerPerformance(instance: FirebaseNamespace): void {\n  const factoryMethod = (\n    app: FirebaseApp,\n    installations: FirebaseInstallations\n  ): PerformanceController => {\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    SettingsService.getInstance().firebaseAppInstance = app;\n    SettingsService.getInstance().installationsService = installations;\n    return new PerformanceController(app);\n  };\n\n  // Register performance with firebase-app.\n  (instance as _FirebaseNamespace).INTERNAL.registerComponent(\n    new Component(\n      'performance',\n      container => {\n        /* Dependencies */\n        // getImmediate for FirebaseApp will always succeed\n        const app = container.getProvider('app').getImmediate();\n        // The following call will always succeed because perf has `import '@firebase/installations'`\n        const installations = container\n          .getProvider('installations')\n          .getImmediate();\n\n        return factoryMethod(app, installations);\n      },\n      ComponentType.PUBLIC\n    )\n  );\n\n  instance.registerVersion(name, version);\n}\n\nregisterPerformance(firebase);\n\ndeclare module '@firebase/app-types' {\n  interface FirebaseNamespace {\n    performance?: {\n      (app?: FirebaseApp): FirebasePerformance;\n    };\n  }\n  interface FirebaseApp {\n    performance?(): FirebasePerformance;\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 firebase from '@firebase/app';\nimport '@firebase/performance';\nimport { name, version } from '../package.json';\n\nfirebase.registerVersion(name, version, 'lite');\n\nexport default firebase;\n"],"names":["deepExtend","target","source","Object","constructor","Date","getTime","undefined","Array","prop","hasOwnProperty","Deferred","[object 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