0x1998 - MANAGER

Düzenlenen Dosya: index.rn.js.map

{"version":3,"file":"index.rn.js","sources":["../src/api/observer.ts","../src/lite-api/aggregate_types.ts","../src/lite-api/snapshot.ts","../src/lite-api/query.ts","../src/lite-api/reference_impl.ts","../src/lite-api/aggregate.ts","../src/api/aggregate.ts","../src/api/cache_config.ts","../src/api/snapshot.ts","../src/platform/browser/snapshot_to_json.ts","../src/core/transaction_options.ts","../src/lite-api/write_batch.ts","../src/lite-api/transaction.ts","../src/api/transaction.ts","../src/api/reference_impl.ts","../src/api/write_batch.ts","../src/api/index_configuration.ts","../src/api/persistent_cache_index_manager.ts","../src/util/testing_hooks.ts","../src/register.ts","../src/index.rn.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\nimport { JsonObject } from '../model/object_value';\nimport { FirestoreError } from '../util/error';\n\n/**\n * Observer/Subscribe interfaces.\n */\nexport type NextFn<T> = (value: T) => void;\nexport type ErrorFn = (error: FirestoreError) => void;\nexport type CompleteFn = () => void;\n\n// Allow for any of the Observer methods to be undefined.\nexport interface PartialObserver<T> {\n next?: NextFn<T>;\n error?: ErrorFn;\n complete?: CompleteFn;\n}\n\nexport function isPartialObserver<T>(obj: unknown): obj is PartialObserver<T> {\n return implementsAnyMethods(obj, ['next', 'error', 'complete']);\n}\n\n/**\n * Returns true if obj is an object and contains at least one of the specified\n * methods.\n */\nfunction implementsAnyMethods(obj: unknown, methods: string[]): boolean {\n if (typeof obj !== 'object' || obj === null) {\n return false;\n }\n\n const object = obj as JsonObject<unknown>;\n for (const method of methods) {\n if (method in object && typeof object[method] === 'function') {\n return true;\n }\n }\n return false;\n}\n","/**\n * @license\n * Copyright 2022 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 { AggregateType } from '../core/aggregate';\nimport { ObjectValue } from '../model/object_value';\nimport { FieldPath as InternalFieldPath } from '../model/path';\nimport {\n ApiClientObjectMap,\n firestoreV1ApiClientInterfaces,\n Value\n} from '../protos/firestore_proto_api';\n\nimport { average, count, sum } from './aggregate';\nimport { DocumentData, Query } from './reference';\nimport { AbstractUserDataWriter } from './user_data_writer';\n\nexport { AggregateType };\n\n/**\n * Represents an aggregation that can be performed by Firestore.\n */\n// eslint-disable-next-line @typescript-eslint/no-unused-vars\nexport class AggregateField<T> {\n /** A type string to uniquely identify instances of this class. */\n readonly type = 'AggregateField';\n\n /** Indicates the aggregation operation of this AggregateField. */\n readonly aggregateType: AggregateType;\n\n /**\n * Create a new AggregateField<T>\n * @param aggregateType - Specifies the type of aggregation operation to perform.\n * @param _internalFieldPath - Optionally specifies the field that is aggregated.\n * @internal\n */\n constructor(\n aggregateType: AggregateType = 'count',\n readonly _internalFieldPath?: InternalFieldPath\n ) {\n this.aggregateType = aggregateType;\n }\n}\n\n/**\n * The union of all `AggregateField` types that are supported by Firestore.\n */\nexport type AggregateFieldType =\n | ReturnType<typeof sum>\n | ReturnType<typeof average>\n | ReturnType<typeof count>;\n\n/**\n * Specifies a set of aggregations and their aliases.\n */\nexport interface AggregateSpec {\n [field: string]: AggregateFieldType;\n}\n\n/**\n * A type whose keys are taken from an `AggregateSpec`, and whose values are the\n * result of the aggregation performed by the corresponding `AggregateField`\n * from the input `AggregateSpec`.\n */\nexport type AggregateSpecData<T extends AggregateSpec> = {\n [P in keyof T]: T[P] extends AggregateField<infer U> ? U : never;\n};\n\n/**\n * The results of executing an aggregation query.\n */\nexport class AggregateQuerySnapshot<\n AggregateSpecType extends AggregateSpec,\n AppModelType = DocumentData,\n DbModelType extends DocumentData = DocumentData\n> {\n /** A type string to uniquely identify instances of this class. */\n readonly type = 'AggregateQuerySnapshot';\n\n /**\n * The underlying query over which the aggregations recorded in this\n * `AggregateQuerySnapshot` were performed.\n */\n readonly query: Query<AppModelType, DbModelType>;\n\n /** @hideconstructor */\n constructor(\n query: Query<AppModelType, DbModelType>,\n private readonly _userDataWriter: AbstractUserDataWriter,\n private readonly _data: ApiClientObjectMap<Value>\n ) {\n this.query = query;\n }\n\n /**\n * Returns the results of the aggregations performed over the underlying\n * query.\n *\n * The keys of the returned object will be the same as those of the\n * `AggregateSpec` object specified to the aggregation method, and the values\n * will be the corresponding aggregation result.\n *\n * @returns The results of the aggregations performed over the underlying\n * query.\n */\n data(): AggregateSpecData<AggregateSpecType> {\n return this._userDataWriter.convertObjectMap(\n this._data\n ) as AggregateSpecData<AggregateSpecType>;\n }\n\n /**\n * @internal\n * @private\n *\n * Retrieves all fields in the snapshot as a proto value.\n *\n * @returns An `Object` containing all fields in the snapshot.\n */\n _fieldsProto(): { [key: string]: firestoreV1ApiClientInterfaces.Value } {\n // Wrap data in an ObjectValue to clone it.\n const dataClone = new ObjectValue({\n mapValue: { fields: this._data }\n }).clone();\n\n // Return the cloned value to prevent manipulation of the Snapshot's data\n return dataClone.value.mapValue.fields!;\n }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getModularInstance } from '@firebase/util';\n\nimport { Document } from '../model/document';\nimport { DocumentKey } from '../model/document_key';\nimport { firestoreV1ApiClientInterfaces } from '../protos/firestore_proto_api';\nimport { arrayEquals } from '../util/misc';\n\nimport { Firestore } from './database';\nimport { FieldPath } from './field_path';\nimport {\n DocumentData,\n DocumentReference,\n PartialWithFieldValue,\n Query,\n queryEqual,\n SetOptions,\n WithFieldValue\n} from './reference';\nimport {\n fieldPathFromArgument,\n UntypedFirestoreDataConverter\n} from './user_data_reader';\nimport { AbstractUserDataWriter } from './user_data_writer';\n\n/**\n * Converter used by `withConverter()` to transform user objects of type\n * `AppModelType` into Firestore data of type `DbModelType`.\n *\n * Using the converter allows you to specify generic type arguments when\n * storing and retrieving objects from Firestore.\n *\n * In this context, an \"AppModel\" is a class that is used in an application to\n * package together related information and functionality. Such a class could,\n * for example, have properties with complex, nested data types, properties used\n * for memoization, properties of types not supported by Firestore (such as\n * `symbol` and `bigint`), and helper functions that perform compound\n * operations. Such classes are not suitable and/or possible to store into a\n * Firestore database. Instead, instances of such classes need to be converted\n * to \"plain old JavaScript objects\" (POJOs) with exclusively primitive\n * properties, potentially nested inside other POJOs or arrays of POJOs. In this\n * context, this type is referred to as the \"DbModel\" and would be an object\n * suitable for persisting into Firestore. For convenience, applications can\n * implement `FirestoreDataConverter` and register the converter with Firestore\n * objects, such as `DocumentReference` or `Query`, to automatically convert\n * `AppModel` to `DbModel` when storing into Firestore, and convert `DbModel`\n * to `AppModel` when retrieving from Firestore.\n *\n * @example\n *\n * Simple Example\n *\n * ```typescript\n * const numberConverter = {\n * toFirestore(value: WithFieldValue<number>) {\n * return { value };\n * },\n * fromFirestore(snapshot: QueryDocumentSnapshot, options: SnapshotOptions) {\n * return snapshot.data(options).value as number;\n * }\n * };\n *\n * async function simpleDemo(db: Firestore): Promise<void> {\n * const documentRef = doc(db, 'values/value123').withConverter(numberConverter);\n *\n * // converters are used with `setDoc`, `addDoc`, and `getDoc`\n * await setDoc(documentRef, 42);\n * const snapshot1 = await getDoc(documentRef);\n * assertEqual(snapshot1.data(), 42);\n *\n * // converters are not used when writing data with `updateDoc`\n * await updateDoc(documentRef, { value: 999 });\n * const snapshot2 = await getDoc(documentRef);\n * assertEqual(snapshot2.data(), 999);\n * }\n * ```\n *\n * Advanced Example\n *\n * ```typescript\n * // The Post class is a model that is used by our application.\n * // This class may have properties and methods that are specific\n * // to our application execution, which do not need to be persisted\n * // to Firestore.\n * class Post {\n * constructor(\n * readonly title: string,\n * readonly author: string,\n * readonly lastUpdatedMillis: number\n * ) {}\n * toString(): string {\n * return `${this.title} by ${this.author}`;\n * }\n * }\n *\n * // The PostDbModel represents how we want our posts to be stored\n * // in Firestore. This DbModel has different properties (`ttl`,\n * // `aut`, and `lut`) from the Post class we use in our application.\n * interface PostDbModel {\n * ttl: string;\n * aut: { firstName: string; lastName: string };\n * lut: Timestamp;\n * }\n *\n * // The `PostConverter` implements `FirestoreDataConverter` and specifies\n * // how the Firestore SDK can convert `Post` objects to `PostDbModel`\n * // objects and vice versa.\n * class PostConverter implements FirestoreDataConverter<Post, PostDbModel> {\n * toFirestore(post: WithFieldValue<Post>): WithFieldValue<PostDbModel> {\n * return {\n * ttl: post.title,\n * aut: this._autFromAuthor(post.author),\n * lut: this._lutFromLastUpdatedMillis(post.lastUpdatedMillis)\n * };\n * }\n *\n * fromFirestore(snapshot: QueryDocumentSnapshot, options: SnapshotOptions): Post {\n * const data = snapshot.data(options) as PostDbModel;\n * const author = `${data.aut.firstName} ${data.aut.lastName}`;\n * return new Post(data.ttl, author, data.lut.toMillis());\n * }\n *\n * _autFromAuthor(\n * author: string | FieldValue\n * ): { firstName: string; lastName: string } | FieldValue {\n * if (typeof author !== 'string') {\n * // `author` is a FieldValue, so just return it.\n * return author;\n * }\n * const [firstName, lastName] = author.split(' ');\n * return {firstName, lastName};\n * }\n *\n * _lutFromLastUpdatedMillis(\n * lastUpdatedMillis: number | FieldValue\n * ): Timestamp | FieldValue {\n * if (typeof lastUpdatedMillis !== 'number') {\n * // `lastUpdatedMillis` must be a FieldValue, so just return it.\n * return lastUpdatedMillis;\n * }\n * return Timestamp.fromMillis(lastUpdatedMillis);\n * }\n * }\n *\n * async function advancedDemo(db: Firestore): Promise<void> {\n * // Create a `DocumentReference` with a `FirestoreDataConverter`.\n * const documentRef = doc(db, 'posts/post123').withConverter(new PostConverter());\n *\n * // The `data` argument specified to `setDoc()` is type checked by the\n * // TypeScript compiler to be compatible with `Post`. Since the `data`\n * // argument is typed as `WithFieldValue<Post>` rather than just `Post`,\n * // this allows properties of the `data` argument to also be special\n * // Firestore values that perform server-side mutations, such as\n * // `arrayRemove()`, `deleteField()`, and `serverTimestamp()`.\n * await setDoc(documentRef, {\n * title: 'My Life',\n * author: 'Foo Bar',\n * lastUpdatedMillis: serverTimestamp()\n * });\n *\n * // The TypeScript compiler will fail to compile if the `data` argument to\n * // `setDoc()` is _not_ compatible with `WithFieldValue<Post>`. This\n * // type checking prevents the caller from specifying objects with incorrect\n * // properties or property values.\n * // @ts-expect-error \"Argument of type { ttl: string; } is not assignable\n * // to parameter of type WithFieldValue<Post>\"\n * await setDoc(documentRef, { ttl: 'The Title' });\n *\n * // When retrieving a document with `getDoc()` the `DocumentSnapshot`\n * // object's `data()` method returns a `Post`, rather than a generic object,\n * // which would have been returned if the `DocumentReference` did _not_ have a\n * // `FirestoreDataConverter` attached to it.\n * const snapshot1: DocumentSnapshot<Post> = await getDoc(documentRef);\n * const post1: Post = snapshot1.data()!;\n * if (post1) {\n * assertEqual(post1.title, 'My Life');\n * assertEqual(post1.author, 'Foo Bar');\n * }\n *\n * // The `data` argument specified to `updateDoc()` is type checked by the\n * // TypeScript compiler to be compatible with `PostDbModel`. Note that\n * // unlike `setDoc()`, whose `data` argument must be compatible with `Post`,\n * // the `data` argument to `updateDoc()` must be compatible with\n * // `PostDbModel`. Similar to `setDoc()`, since the `data` argument is typed\n * // as `WithFieldValue<PostDbModel>` rather than just `PostDbModel`, this\n * // allows properties of the `data` argument to also be those special\n * // Firestore values, like `arrayRemove()`, `deleteField()`, and\n * // `serverTimestamp()`.\n * await updateDoc(documentRef, {\n * 'aut.firstName': 'NewFirstName',\n * lut: serverTimestamp()\n * });\n *\n * // The TypeScript compiler will fail to compile if the `data` argument to\n * // `updateDoc()` is _not_ compatible with `WithFieldValue<PostDbModel>`.\n * // This type checking prevents the caller from specifying objects with\n * // incorrect properties or property values.\n * // @ts-expect-error \"Argument of type { title: string; } is not assignable\n * // to parameter of type WithFieldValue<PostDbModel>\"\n * await updateDoc(documentRef, { title: 'New Title' });\n * const snapshot2: DocumentSnapshot<Post> = await getDoc(documentRef);\n * const post2: Post = snapshot2.data()!;\n * if (post2) {\n * assertEqual(post2.title, 'My Life');\n * assertEqual(post2.author, 'NewFirstName Bar');\n * }\n * }\n * ```\n */\nexport interface FirestoreDataConverter<\n AppModelType,\n DbModelType extends DocumentData = DocumentData\n> {\n /**\n * Called by the Firestore SDK to convert a custom model object of type\n * `AppModelType` into a plain JavaScript object (suitable for writing\n * directly to the Firestore database) of type `DbModelType`. Used with\n * {@link @firebase/firestore/lite#(setDoc:1)},\n * {@link @firebase/firestore/lite#(WriteBatch.set:1)} and\n * {@link @firebase/firestore/lite#(Transaction.set:1)}.\n *\n * The `WithFieldValue<T>` type extends `T` to also allow FieldValues such as\n * {@link (deleteField:1)} to be used as property values.\n */\n toFirestore(\n modelObject: WithFieldValue<AppModelType>\n ): WithFieldValue<DbModelType>;\n\n /**\n * Called by the Firestore SDK to convert a custom model object of type\n * `AppModelType` into a plain JavaScript object (suitable for writing\n * directly to the Firestore database) of type `DbModelType`. Used with\n * {@link @firebase/firestore/lite#(setDoc:1)},\n * {@link @firebase/firestore/lite#(WriteBatch.set:1)} and\n * {@link @firebase/firestore/lite#(Transaction.set:1)} with `merge:true`\n * or `mergeFields`.\n *\n * The `PartialWithFieldValue<T>` type extends `Partial<T>` to allow\n * FieldValues such as {@link (arrayUnion:1)} to be used as property values.\n * It also supports nested `Partial` by allowing nested fields to be\n * omitted.\n */\n toFirestore(\n modelObject: PartialWithFieldValue<AppModelType>,\n options: SetOptions\n ): PartialWithFieldValue<DbModelType>;\n\n /**\n * Called by the Firestore SDK to convert Firestore data into an object of\n * type `AppModelType`. You can access your data by calling:\n * `snapshot.data()`.\n *\n *\n * Generally, the data returned from `snapshot.data()` can be cast to\n * `DbModelType`; however, this is not guaranteed because Firestore does not\n * enforce a schema on the database. For example, writes from a previous\n * version of the application or writes from another client that did not use a\n * type converter could have written data with different properties and/or\n * property types. The implementation will need to choose whether to\n * gracefully recover from non-conforming data or throw an error.\n *\n * @param snapshot - A `QueryDocumentSnapshot` containing your data and\n * metadata.\n */\n fromFirestore(\n snapshot: QueryDocumentSnapshot<DocumentData, DocumentData>\n ): AppModelType;\n}\n\n/**\n * A `DocumentSnapshot` contains data read from a document in your Firestore\n * database. The data can be extracted with `.data()` or `.get(<field>)` to\n * get a specific field.\n *\n * For a `DocumentSnapshot` that points to a non-existing document, any data\n * access will return 'undefined'. You can use the `exists()` method to\n * explicitly verify a document's existence.\n */\nexport class DocumentSnapshot<\n AppModelType = DocumentData,\n DbModelType extends DocumentData = DocumentData\n> {\n // Note: This class is stripped down version of the DocumentSnapshot in\n // the legacy SDK. The changes are:\n // - No support for SnapshotMetadata.\n // - No support for SnapshotOptions.\n\n /** @hideconstructor protected */\n constructor(\n public _firestore: Firestore,\n public _userDataWriter: AbstractUserDataWriter,\n public _key: DocumentKey,\n public _document: Document | null,\n public _converter: UntypedFirestoreDataConverter<\n AppModelType,\n DbModelType\n > | null\n ) {}\n\n /** Property of the `DocumentSnapshot` that provides the document's ID. */\n get id(): string {\n return this._key.path.lastSegment();\n }\n\n /**\n * The `DocumentReference` for the document included in the `DocumentSnapshot`.\n */\n get ref(): DocumentReference<AppModelType, DbModelType> {\n return new DocumentReference<AppModelType, DbModelType>(\n this._firestore,\n this._converter,\n this._key\n );\n }\n\n /**\n * Signals whether or not the document at the snapshot's location exists.\n *\n * @returns true if the document exists.\n */\n exists(): this is QueryDocumentSnapshot<AppModelType, DbModelType> {\n return this._document !== null;\n }\n\n /**\n * Retrieves all fields in the document as an `Object`. Returns `undefined` if\n * the document doesn't exist.\n *\n * @returns An `Object` containing all fields in the document or `undefined`\n * if the document doesn't exist.\n */\n data(): AppModelType | undefined {\n if (!this._document) {\n return undefined;\n } else if (this._converter) {\n // We only want to use the converter and create a new DocumentSnapshot\n // if a converter has been provided.\n const snapshot = new QueryDocumentSnapshot(\n this._firestore,\n this._userDataWriter,\n this._key,\n this._document,\n /* converter= */ null\n );\n return this._converter.fromFirestore(snapshot);\n } else {\n return this._userDataWriter.convertValue(\n this._document.data.value\n ) as AppModelType;\n }\n }\n\n /**\n * @internal\n * @private\n *\n * Retrieves all fields in the document as a proto Value. Returns `undefined` if\n * the document doesn't exist.\n *\n * @returns An `Object` containing all fields in the document or `undefined`\n * if the document doesn't exist.\n */\n _fieldsProto():\n | { [key: string]: firestoreV1ApiClientInterfaces.Value }\n | undefined {\n // Return a cloned value to prevent manipulation of the Snapshot's data\n return this._document?.data.clone().value.mapValue.fields ?? undefined;\n }\n\n /**\n * Retrieves the field specified by `fieldPath`. Returns `undefined` if the\n * document or field doesn't exist.\n *\n * @param fieldPath - The path (for example 'foo' or 'foo.bar') to a specific\n * field.\n * @returns The data at the specified field location or undefined if no such\n * field exists in the document.\n */\n // We are using `any` here to avoid an explicit cast by our users.\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n get(fieldPath: string | FieldPath): any {\n if (this._document) {\n const value = this._document.data.field(\n fieldPathFromArgument('DocumentSnapshot.get', fieldPath)\n );\n if (value !== null) {\n return this._userDataWriter.convertValue(value);\n }\n }\n return undefined;\n }\n}\n\n/**\n * A `QueryDocumentSnapshot` contains data read from a document in your\n * Firestore database as part of a query. The document is guaranteed to exist\n * and its data can be extracted with `.data()` or `.get(<field>)` to get a\n * specific field.\n *\n * A `QueryDocumentSnapshot` offers the same API surface as a\n * `DocumentSnapshot`. Since query results contain only existing documents, the\n * `exists` property will always be true and `data()` will never return\n * 'undefined'.\n */\nexport class QueryDocumentSnapshot<\n AppModelType = DocumentData,\n DbModelType extends DocumentData = DocumentData\n> extends DocumentSnapshot<AppModelType, DbModelType> {\n /**\n * Retrieves all fields in the document as an `Object`.\n *\n * @override\n * @returns An `Object` containing all fields in the document.\n */\n data(): AppModelType {\n return super.data() as AppModelType;\n }\n}\n\n/**\n * A `QuerySnapshot` contains zero or more `DocumentSnapshot` objects\n * representing the results of a query. The documents can be accessed as an\n * array via the `docs` property or enumerated using the `forEach` method. The\n * number of documents can be determined via the `empty` and `size`\n * properties.\n */\nexport class QuerySnapshot<\n AppModelType = DocumentData,\n DbModelType extends DocumentData = DocumentData\n> {\n /**\n * The query on which you called {@link getDocs} in order to get this\n * `QuerySnapshot`.\n */\n readonly query: Query<AppModelType, DbModelType>;\n\n /** @hideconstructor */\n constructor(\n _query: Query<AppModelType, DbModelType>,\n readonly _docs: Array<QueryDocumentSnapshot<AppModelType, DbModelType>>\n ) {\n this.query = _query;\n }\n\n /** An array of all the documents in the `QuerySnapshot`. */\n get docs(): Array<QueryDocumentSnapshot<AppModelType, DbModelType>> {\n return [...this._docs];\n }\n\n /** The number of documents in the `QuerySnapshot`. */\n get size(): number {\n return this.docs.length;\n }\n\n /** True if there are no documents in the `QuerySnapshot`. */\n get empty(): boolean {\n return this.docs.length === 0;\n }\n\n /**\n * Enumerates all of the documents in the `QuerySnapshot`.\n *\n * @param callback - A callback to be called with a `QueryDocumentSnapshot` for\n * each document in the snapshot.\n * @param thisArg - The `this` binding for the callback.\n */\n forEach(\n callback: (\n result: QueryDocumentSnapshot<AppModelType, DbModelType>\n ) => void,\n thisArg?: unknown\n ): void {\n this._docs.forEach(callback, thisArg);\n }\n}\n\n/**\n * Returns true if the provided snapshots are equal.\n *\n * @param left - A snapshot to compare.\n * @param right - A snapshot to compare.\n * @returns true if the snapshots are equal.\n */\nexport function snapshotEqual<AppModelType, DbModelType extends DocumentData>(\n left:\n | DocumentSnapshot<AppModelType, DbModelType>\n | QuerySnapshot<AppModelType, DbModelType>,\n right:\n | DocumentSnapshot<AppModelType, DbModelType>\n | QuerySnapshot<AppModelType, DbModelType>\n): boolean {\n left = getModularInstance(left);\n right = getModularInstance(right);\n\n if (left instanceof DocumentSnapshot && right instanceof DocumentSnapshot) {\n return (\n left._firestore === right._firestore &&\n left._key.isEqual(right._key) &&\n (left._document === null\n ? right._document === null\n : left._document.isEqual(right._document)) &&\n left._converter === right._converter\n );\n } else if (left instanceof QuerySnapshot && right instanceof QuerySnapshot) {\n return (\n queryEqual(left.query, right.query) &&\n arrayEquals(left.docs, right.docs, snapshotEqual)\n );\n }\n\n return false;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getModularInstance } from '@firebase/util';\n\nimport { Bound } from '../core/bound';\nimport { DatabaseId } from '../core/database_info';\nimport {\n CompositeFilter,\n CompositeOperator,\n FieldFilter,\n Filter,\n Operator\n} from '../core/filter';\nimport { Direction, OrderBy } from '../core/order_by';\nimport {\n isCollectionGroupQuery,\n LimitType,\n Query as InternalQuery,\n queryNormalizedOrderBy,\n queryWithAddedFilter,\n queryWithAddedOrderBy,\n queryWithEndAt,\n queryWithLimit,\n queryWithStartAt\n} from '../core/query';\nimport { Document } from '../model/document';\nimport { DocumentKey } from '../model/document_key';\nimport { FieldPath as InternalFieldPath, ResourcePath } from '../model/path';\nimport { isServerTimestamp } from '../model/server_timestamps';\nimport { refValue } from '../model/values';\nimport { Value as ProtoValue } from '../protos/firestore_proto_api';\nimport { Code, FirestoreError } from '../util/error';\nimport {\n validatePositiveNumber,\n valueDescription\n} from '../util/input_validation';\n\nimport { FieldPath } from './field_path';\nimport { DocumentData, DocumentReference, Query } from './reference';\nimport { DocumentSnapshot } from './snapshot';\nimport {\n fieldPathFromArgument,\n newUserDataReader,\n parseQueryValue,\n UserDataReader\n} from './user_data_reader';\n\nexport function validateHasExplicitOrderByForLimitToLast(\n query: InternalQuery\n): void {\n if (\n query.limitType === LimitType.Last &&\n query.explicitOrderBy.length === 0\n ) {\n throw new FirestoreError(\n Code.UNIMPLEMENTED,\n 'limitToLast() queries require specifying at least one orderBy() clause'\n );\n }\n}\n\n/** Describes the different query constraints available in this SDK. */\nexport type QueryConstraintType =\n | 'where'\n | 'orderBy'\n | 'limit'\n | 'limitToLast'\n | 'startAt'\n | 'startAfter'\n | 'endAt'\n | 'endBefore';\n\n/**\n * An `AppliableConstraint` is an abstraction of a constraint that can be applied\n * to a Firestore query.\n */\nexport abstract class AppliableConstraint {\n /**\n * Takes the provided {@link Query} and returns a copy of the {@link Query} with this\n * {@link AppliableConstraint} applied.\n */\n abstract _apply<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Query<AppModelType, DbModelType>;\n}\n\n/**\n * A `QueryConstraint` is used to narrow the set of documents returned by a\n * Firestore query. `QueryConstraint`s are created by invoking {@link where},\n * {@link orderBy}, {@link (startAt:1)}, {@link (startAfter:1)}, {@link\n * (endBefore:1)}, {@link (endAt:1)}, {@link limit}, {@link limitToLast} and\n * can then be passed to {@link (query:1)} to create a new query instance that\n * also contains this `QueryConstraint`.\n */\nexport abstract class QueryConstraint extends AppliableConstraint {\n /** The type of this query constraint */\n abstract readonly type: QueryConstraintType;\n\n /**\n * Takes the provided {@link Query} and returns a copy of the {@link Query} with this\n * {@link AppliableConstraint} applied.\n */\n abstract _apply<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Query<AppModelType, DbModelType>;\n}\n\n/**\n * Creates a new immutable instance of {@link Query} that is extended to also\n * include additional query constraints.\n *\n * @param query - The {@link Query} instance to use as a base for the new\n * constraints.\n * @param compositeFilter - The {@link QueryCompositeFilterConstraint} to\n * apply. Create {@link QueryCompositeFilterConstraint} using {@link and} or\n * {@link or}.\n * @param queryConstraints - Additional {@link QueryNonFilterConstraint}s to\n * apply (e.g. {@link orderBy}, {@link limit}).\n * @throws if any of the provided query constraints cannot be combined with the\n * existing or new constraints.\n */\nexport function query<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>,\n compositeFilter: QueryCompositeFilterConstraint,\n ...queryConstraints: QueryNonFilterConstraint[]\n): Query<AppModelType, DbModelType>;\n\n/**\n * Creates a new immutable instance of {@link Query} that is extended to also\n * include additional query constraints.\n *\n * @param query - The {@link Query} instance to use as a base for the new\n * constraints.\n * @param queryConstraints - The list of {@link QueryConstraint}s to apply.\n * @throws if any of the provided query constraints cannot be combined with the\n * existing or new constraints.\n */\nexport function query<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>,\n ...queryConstraints: QueryConstraint[]\n): Query<AppModelType, DbModelType>;\n\nexport function query<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>,\n queryConstraint: QueryCompositeFilterConstraint | QueryConstraint | undefined,\n ...additionalQueryConstraints: Array<\n QueryConstraint | QueryNonFilterConstraint\n >\n): Query<AppModelType, DbModelType> {\n let queryConstraints: AppliableConstraint[] = [];\n\n if (queryConstraint instanceof AppliableConstraint) {\n queryConstraints.push(queryConstraint);\n }\n\n queryConstraints = queryConstraints.concat(additionalQueryConstraints);\n\n validateQueryConstraintArray(queryConstraints);\n\n for (const constraint of queryConstraints) {\n query = constraint._apply(query);\n }\n return query;\n}\n\n/**\n * A `QueryFieldFilterConstraint` is used to narrow the set of documents returned by\n * a Firestore query by filtering on one or more document fields.\n * `QueryFieldFilterConstraint`s are created by invoking {@link where} and can then\n * be passed to {@link (query:1)} to create a new query instance that also contains\n * this `QueryFieldFilterConstraint`.\n */\nexport class QueryFieldFilterConstraint extends QueryConstraint {\n /** The type of this query constraint */\n readonly type = 'where';\n\n /**\n * @internal\n */\n protected constructor(\n private readonly _field: InternalFieldPath,\n private _op: Operator,\n private _value: unknown\n ) {\n super();\n }\n\n static _create(\n _field: InternalFieldPath,\n _op: Operator,\n _value: unknown\n ): QueryFieldFilterConstraint {\n return new QueryFieldFilterConstraint(_field, _op, _value);\n }\n\n _apply<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Query<AppModelType, DbModelType> {\n const filter = this._parse(query);\n validateNewFieldFilter(query._query, filter);\n return new Query(\n query.firestore,\n query.converter,\n queryWithAddedFilter(query._query, filter)\n );\n }\n\n _parse<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): FieldFilter {\n const reader = newUserDataReader(query.firestore);\n const filter = newQueryFilter(\n query._query,\n 'where',\n reader,\n query.firestore._databaseId,\n this._field,\n this._op,\n this._value\n );\n return filter;\n }\n}\n\n/**\n * Filter conditions in a {@link where} clause are specified using the\n * strings '&lt;', '&lt;=', '==', '!=', '&gt;=', '&gt;', 'array-contains', 'in',\n * 'array-contains-any', and 'not-in'.\n */\nexport type WhereFilterOp =\n | '<'\n | '<='\n | '=='\n | '!='\n | '>='\n | '>'\n | 'array-contains'\n | 'in'\n | 'array-contains-any'\n | 'not-in';\n\n/**\n * Creates a {@link QueryFieldFilterConstraint} that enforces that documents\n * must contain the specified field and that the value should satisfy the\n * relation constraint provided.\n *\n * @param fieldPath - The path to compare\n * @param opStr - The operation string (e.g \"&lt;\", \"&lt;=\", \"==\", \"&lt;\",\n * \"&lt;=\", \"!=\").\n * @param value - The value for comparison\n * @returns The created {@link QueryFieldFilterConstraint}.\n */\nexport function where(\n fieldPath: string | FieldPath,\n opStr: WhereFilterOp,\n value: unknown\n): QueryFieldFilterConstraint {\n const op = opStr as Operator;\n const field = fieldPathFromArgument('where', fieldPath);\n return QueryFieldFilterConstraint._create(field, op, value);\n}\n\n/**\n * A `QueryCompositeFilterConstraint` is used to narrow the set of documents\n * returned by a Firestore query by performing the logical OR or AND of multiple\n * {@link QueryFieldFilterConstraint}s or {@link QueryCompositeFilterConstraint}s.\n * `QueryCompositeFilterConstraint`s are created by invoking {@link or} or\n * {@link and} and can then be passed to {@link (query:1)} to create a new query\n * instance that also contains the `QueryCompositeFilterConstraint`.\n */\nexport class QueryCompositeFilterConstraint extends AppliableConstraint {\n /**\n * @internal\n */\n protected constructor(\n /** The type of this query constraint */\n readonly type: 'or' | 'and',\n private readonly _queryConstraints: QueryFilterConstraint[]\n ) {\n super();\n }\n\n static _create(\n type: 'or' | 'and',\n _queryConstraints: QueryFilterConstraint[]\n ): QueryCompositeFilterConstraint {\n return new QueryCompositeFilterConstraint(type, _queryConstraints);\n }\n\n _parse<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Filter {\n const parsedFilters = this._queryConstraints\n .map(queryConstraint => {\n return queryConstraint._parse(query);\n })\n .filter(parsedFilter => parsedFilter.getFilters().length > 0);\n\n if (parsedFilters.length === 1) {\n return parsedFilters[0];\n }\n\n return CompositeFilter.create(parsedFilters, this._getOperator());\n }\n\n _apply<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Query<AppModelType, DbModelType> {\n const parsedFilter = this._parse(query);\n if (parsedFilter.getFilters().length === 0) {\n // Return the existing query if not adding any more filters (e.g. an empty\n // composite filter).\n return query;\n }\n validateNewFilter(query._query, parsedFilter);\n\n return new Query(\n query.firestore,\n query.converter,\n queryWithAddedFilter(query._query, parsedFilter)\n );\n }\n\n _getQueryConstraints(): readonly AppliableConstraint[] {\n return this._queryConstraints;\n }\n\n _getOperator(): CompositeOperator {\n return this.type === 'and' ? CompositeOperator.AND : CompositeOperator.OR;\n }\n}\n\n/**\n * `QueryNonFilterConstraint` is a helper union type that represents\n * QueryConstraints which are used to narrow or order the set of documents,\n * but that do not explicitly filter on a document field.\n * `QueryNonFilterConstraint`s are created by invoking {@link orderBy},\n * {@link (startAt:1)}, {@link (startAfter:1)}, {@link (endBefore:1)}, {@link (endAt:1)},\n * {@link limit} or {@link limitToLast} and can then be passed to {@link (query:1)}\n * to create a new query instance that also contains the `QueryConstraint`.\n */\nexport type QueryNonFilterConstraint =\n | QueryOrderByConstraint\n | QueryLimitConstraint\n | QueryStartAtConstraint\n | QueryEndAtConstraint;\n\n/**\n * `QueryFilterConstraint` is a helper union type that represents\n * {@link QueryFieldFilterConstraint} and {@link QueryCompositeFilterConstraint}.\n */\nexport type QueryFilterConstraint =\n | QueryFieldFilterConstraint\n | QueryCompositeFilterConstraint;\n\n/**\n * Creates a new {@link QueryCompositeFilterConstraint} that is a disjunction of\n * the given filter constraints. A disjunction filter includes a document if it\n * satisfies any of the given filters.\n *\n * @param queryConstraints - Optional. The list of\n * {@link QueryFilterConstraint}s to perform a disjunction for. These must be\n * created with calls to {@link where}, {@link or}, or {@link and}.\n * @returns The newly created {@link QueryCompositeFilterConstraint}.\n */\nexport function or(\n ...queryConstraints: QueryFilterConstraint[]\n): QueryCompositeFilterConstraint {\n // Only support QueryFilterConstraints\n queryConstraints.forEach(queryConstraint =>\n validateQueryFilterConstraint('or', queryConstraint)\n );\n\n return QueryCompositeFilterConstraint._create(\n CompositeOperator.OR,\n queryConstraints as QueryFilterConstraint[]\n );\n}\n\n/**\n * Creates a new {@link QueryCompositeFilterConstraint} that is a conjunction of\n * the given filter constraints. A conjunction filter includes a document if it\n * satisfies all of the given filters.\n *\n * @param queryConstraints - Optional. The list of\n * {@link QueryFilterConstraint}s to perform a conjunction for. These must be\n * created with calls to {@link where}, {@link or}, or {@link and}.\n * @returns The newly created {@link QueryCompositeFilterConstraint}.\n */\nexport function and(\n ...queryConstraints: QueryFilterConstraint[]\n): QueryCompositeFilterConstraint {\n // Only support QueryFilterConstraints\n queryConstraints.forEach(queryConstraint =>\n validateQueryFilterConstraint('and', queryConstraint)\n );\n\n return QueryCompositeFilterConstraint._create(\n CompositeOperator.AND,\n queryConstraints as QueryFilterConstraint[]\n );\n}\n\n/**\n * A `QueryOrderByConstraint` is used to sort the set of documents returned by a\n * Firestore query. `QueryOrderByConstraint`s are created by invoking\n * {@link orderBy} and can then be passed to {@link (query:1)} to create a new query\n * instance that also contains this `QueryOrderByConstraint`.\n *\n * Note: Documents that do not contain the orderBy field will not be present in\n * the query result.\n */\nexport class QueryOrderByConstraint extends QueryConstraint {\n /** The type of this query constraint */\n readonly type = 'orderBy';\n\n /**\n * @internal\n */\n protected constructor(\n private readonly _field: InternalFieldPath,\n private _direction: Direction\n ) {\n super();\n }\n\n static _create(\n _field: InternalFieldPath,\n _direction: Direction\n ): QueryOrderByConstraint {\n return new QueryOrderByConstraint(_field, _direction);\n }\n\n _apply<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Query<AppModelType, DbModelType> {\n const orderBy = newQueryOrderBy(query._query, this._field, this._direction);\n return new Query(\n query.firestore,\n query.converter,\n queryWithAddedOrderBy(query._query, orderBy)\n );\n }\n}\n\n/**\n * The direction of a {@link orderBy} clause is specified as 'desc' or 'asc'\n * (descending or ascending).\n */\nexport type OrderByDirection = 'desc' | 'asc';\n\n/**\n * Creates a {@link QueryOrderByConstraint} that sorts the query result by the\n * specified field, optionally in descending order instead of ascending.\n *\n * Note: Documents that do not contain the specified field will not be present\n * in the query result.\n *\n * @param fieldPath - The field to sort by.\n * @param directionStr - Optional direction to sort by ('asc' or 'desc'). If\n * not specified, order will be ascending.\n * @returns The created {@link QueryOrderByConstraint}.\n */\nexport function orderBy(\n fieldPath: string | FieldPath,\n directionStr: OrderByDirection = 'asc'\n): QueryOrderByConstraint {\n const direction = directionStr as Direction;\n const path = fieldPathFromArgument('orderBy', fieldPath);\n return QueryOrderByConstraint._create(path, direction);\n}\n\n/**\n * A `QueryLimitConstraint` is used to limit the number of documents returned by\n * a Firestore query.\n * `QueryLimitConstraint`s are created by invoking {@link limit} or\n * {@link limitToLast} and can then be passed to {@link (query:1)} to create a new\n * query instance that also contains this `QueryLimitConstraint`.\n */\nexport class QueryLimitConstraint extends QueryConstraint {\n /**\n * @internal\n */\n protected constructor(\n /** The type of this query constraint */\n readonly type: 'limit' | 'limitToLast',\n private readonly _limit: number,\n private readonly _limitType: LimitType\n ) {\n super();\n }\n\n static _create(\n type: 'limit' | 'limitToLast',\n _limit: number,\n _limitType: LimitType\n ): QueryLimitConstraint {\n return new QueryLimitConstraint(type, _limit, _limitType);\n }\n\n _apply<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Query<AppModelType, DbModelType> {\n return new Query(\n query.firestore,\n query.converter,\n queryWithLimit(query._query, this._limit, this._limitType)\n );\n }\n}\n\n/**\n * Creates a {@link QueryLimitConstraint} that only returns the first matching\n * documents.\n *\n * @param limit - The maximum number of items to return.\n * @returns The created {@link QueryLimitConstraint}.\n */\nexport function limit(limit: number): QueryLimitConstraint {\n validatePositiveNumber('limit', limit);\n return QueryLimitConstraint._create('limit', limit, LimitType.First);\n}\n\n/**\n * Creates a {@link QueryLimitConstraint} that only returns the last matching\n * documents.\n *\n * You must specify at least one `orderBy` clause for `limitToLast` queries,\n * otherwise an exception will be thrown during execution.\n *\n * @param limit - The maximum number of items to return.\n * @returns The created {@link QueryLimitConstraint}.\n */\nexport function limitToLast(limit: number): QueryLimitConstraint {\n validatePositiveNumber('limitToLast', limit);\n return QueryLimitConstraint._create('limitToLast', limit, LimitType.Last);\n}\n\n/**\n * A `QueryStartAtConstraint` is used to exclude documents from the start of a\n * result set returned by a Firestore query.\n * `QueryStartAtConstraint`s are created by invoking {@link (startAt:1)} or\n * {@link (startAfter:1)} and can then be passed to {@link (query:1)} to create a\n * new query instance that also contains this `QueryStartAtConstraint`.\n */\nexport class QueryStartAtConstraint extends QueryConstraint {\n /**\n * @internal\n */\n protected constructor(\n /** The type of this query constraint */\n readonly type: 'startAt' | 'startAfter',\n private readonly _docOrFields: Array<unknown | DocumentSnapshot<unknown>>,\n private readonly _inclusive: boolean\n ) {\n super();\n }\n\n static _create(\n type: 'startAt' | 'startAfter',\n _docOrFields: Array<unknown | DocumentSnapshot<unknown>>,\n _inclusive: boolean\n ): QueryStartAtConstraint {\n return new QueryStartAtConstraint(type, _docOrFields, _inclusive);\n }\n\n _apply<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Query<AppModelType, DbModelType> {\n const bound = newQueryBoundFromDocOrFields(\n query,\n this.type,\n this._docOrFields,\n this._inclusive\n );\n return new Query<AppModelType, DbModelType>(\n query.firestore,\n query.converter,\n queryWithStartAt(query._query, bound)\n );\n }\n}\n\n/**\n * Creates a {@link QueryStartAtConstraint} that modifies the result set to\n * start at the provided document (inclusive). The starting position is relative\n * to the order of the query. The document must contain all of the fields\n * provided in the `orderBy` of this query.\n *\n * @param snapshot - The snapshot of the document to start at.\n * @returns A {@link QueryStartAtConstraint} to pass to `query()`.\n */\nexport function startAt<AppModelType, DbModelType extends DocumentData>(\n snapshot: DocumentSnapshot<AppModelType, DbModelType>\n): QueryStartAtConstraint;\n/**\n * Creates a {@link QueryStartAtConstraint} that modifies the result set to\n * start at the provided fields relative to the order of the query. The order of\n * the field values must match the order of the order by clauses of the query.\n *\n * @param fieldValues - The field values to start this query at, in order\n * of the query's order by.\n * @returns A {@link QueryStartAtConstraint} to pass to `query()`.\n */\nexport function startAt(...fieldValues: unknown[]): QueryStartAtConstraint;\nexport function startAt<AppModelType, DbModelType extends DocumentData>(\n ...docOrFields: Array<unknown | DocumentSnapshot<AppModelType, DbModelType>>\n): QueryStartAtConstraint {\n return QueryStartAtConstraint._create(\n 'startAt',\n docOrFields,\n /*inclusive=*/ true\n );\n}\n\n/**\n * Creates a {@link QueryStartAtConstraint} that modifies the result set to\n * start after the provided document (exclusive). The starting position is\n * relative to the order of the query. The document must contain all of the\n * fields provided in the orderBy of the query.\n *\n * @param snapshot - The snapshot of the document to start after.\n * @returns A {@link QueryStartAtConstraint} to pass to `query()`\n */\nexport function startAfter<AppModelType, DbModelType extends DocumentData>(\n snapshot: DocumentSnapshot<AppModelType, DbModelType>\n): QueryStartAtConstraint;\n/**\n * Creates a {@link QueryStartAtConstraint} that modifies the result set to\n * start after the provided fields relative to the order of the query. The order\n * of the field values must match the order of the order by clauses of the query.\n *\n * @param fieldValues - The field values to start this query after, in order\n * of the query's order by.\n * @returns A {@link QueryStartAtConstraint} to pass to `query()`\n */\nexport function startAfter(...fieldValues: unknown[]): QueryStartAtConstraint;\nexport function startAfter<AppModelType, DbModelType extends DocumentData>(\n ...docOrFields: Array<unknown | DocumentSnapshot<AppModelType, DbModelType>>\n): QueryStartAtConstraint {\n return QueryStartAtConstraint._create(\n 'startAfter',\n docOrFields,\n /*inclusive=*/ false\n );\n}\n\n/**\n * A `QueryEndAtConstraint` is used to exclude documents from the end of a\n * result set returned by a Firestore query.\n * `QueryEndAtConstraint`s are created by invoking {@link (endAt:1)} or\n * {@link (endBefore:1)} and can then be passed to {@link (query:1)} to create a new\n * query instance that also contains this `QueryEndAtConstraint`.\n */\nexport class QueryEndAtConstraint extends QueryConstraint {\n /**\n * @internal\n */\n protected constructor(\n /** The type of this query constraint */\n readonly type: 'endBefore' | 'endAt',\n private readonly _docOrFields: Array<unknown | DocumentSnapshot<unknown>>,\n private readonly _inclusive: boolean\n ) {\n super();\n }\n\n static _create(\n type: 'endBefore' | 'endAt',\n _docOrFields: Array<unknown | DocumentSnapshot<unknown>>,\n _inclusive: boolean\n ): QueryEndAtConstraint {\n return new QueryEndAtConstraint(type, _docOrFields, _inclusive);\n }\n\n _apply<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n ): Query<AppModelType, DbModelType> {\n const bound = newQueryBoundFromDocOrFields(\n query,\n this.type,\n this._docOrFields,\n this._inclusive\n );\n return new Query(\n query.firestore,\n query.converter,\n queryWithEndAt(query._query, bound)\n );\n }\n}\n\n/**\n * Creates a {@link QueryEndAtConstraint} that modifies the result set to end\n * before the provided document (exclusive). The end position is relative to the\n * order of the query. The document must contain all of the fields provided in\n * the orderBy of the query.\n *\n * @param snapshot - The snapshot of the document to end before.\n * @returns A {@link QueryEndAtConstraint} to pass to `query()`\n */\nexport function endBefore<AppModelType, DbModelType extends DocumentData>(\n snapshot: DocumentSnapshot<AppModelType, DbModelType>\n): QueryEndAtConstraint;\n/**\n * Creates a {@link QueryEndAtConstraint} that modifies the result set to end\n * before the provided fields relative to the order of the query. The order of\n * the field values must match the order of the order by clauses of the query.\n *\n * @param fieldValues - The field values to end this query before, in order\n * of the query's order by.\n * @returns A {@link QueryEndAtConstraint} to pass to `query()`\n */\nexport function endBefore(...fieldValues: unknown[]): QueryEndAtConstraint;\nexport function endBefore<AppModelType, DbModelType extends DocumentData>(\n ...docOrFields: Array<unknown | DocumentSnapshot<AppModelType, DbModelType>>\n): QueryEndAtConstraint {\n return QueryEndAtConstraint._create(\n 'endBefore',\n docOrFields,\n /*inclusive=*/ false\n );\n}\n\n/**\n * Creates a {@link QueryEndAtConstraint} that modifies the result set to end at\n * the provided document (inclusive). The end position is relative to the order\n * of the query. The document must contain all of the fields provided in the\n * orderBy of the query.\n *\n * @param snapshot - The snapshot of the document to end at.\n * @returns A {@link QueryEndAtConstraint} to pass to `query()`\n */\nexport function endAt<AppModelType, DbModelType extends DocumentData>(\n snapshot: DocumentSnapshot<AppModelType, DbModelType>\n): QueryEndAtConstraint;\n/**\n * Creates a {@link QueryEndAtConstraint} that modifies the result set to end at\n * the provided fields relative to the order of the query. The order of the field\n * values must match the order of the order by clauses of the query.\n *\n * @param fieldValues - The field values to end this query at, in order\n * of the query's order by.\n * @returns A {@link QueryEndAtConstraint} to pass to `query()`\n */\nexport function endAt(...fieldValues: unknown[]): QueryEndAtConstraint;\nexport function endAt<AppModelType, DbModelType extends DocumentData>(\n ...docOrFields: Array<unknown | DocumentSnapshot<AppModelType, DbModelType>>\n): QueryEndAtConstraint {\n return QueryEndAtConstraint._create(\n 'endAt',\n docOrFields,\n /*inclusive=*/ true\n );\n}\n\n/** Helper function to create a bound from a document or fields */\nfunction newQueryBoundFromDocOrFields<\n AppModelType,\n DbModelType extends DocumentData\n>(\n query: Query<AppModelType, DbModelType>,\n methodName: string,\n docOrFields: Array<unknown | DocumentSnapshot<AppModelType, DbModelType>>,\n inclusive: boolean\n): Bound {\n docOrFields[0] = getModularInstance(docOrFields[0]);\n\n if (docOrFields[0] instanceof DocumentSnapshot) {\n return newQueryBoundFromDocument(\n query._query,\n query.firestore._databaseId,\n methodName,\n docOrFields[0]._document,\n inclusive\n );\n } else {\n const reader = newUserDataReader(query.firestore);\n return newQueryBoundFromFields(\n query._query,\n query.firestore._databaseId,\n reader,\n methodName,\n docOrFields,\n inclusive\n );\n }\n}\n\nexport function newQueryFilter(\n query: InternalQuery,\n methodName: string,\n dataReader: UserDataReader,\n databaseId: DatabaseId,\n fieldPath: InternalFieldPath,\n op: Operator,\n value: unknown\n): FieldFilter {\n let fieldValue: ProtoValue;\n if (fieldPath.isKeyField()) {\n if (op === Operator.ARRAY_CONTAINS || op === Operator.ARRAY_CONTAINS_ANY) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid Query. You can't perform '${op}' queries on documentId().`\n );\n } else if (op === Operator.IN || op === Operator.NOT_IN) {\n validateDisjunctiveFilterElements(value, op);\n const referenceList: ProtoValue[] = [];\n for (const arrayValue of value as ProtoValue[]) {\n referenceList.push(parseDocumentIdValue(databaseId, query, arrayValue));\n }\n fieldValue = { arrayValue: { values: referenceList } };\n } else {\n fieldValue = parseDocumentIdValue(databaseId, query, value);\n }\n } else {\n if (\n op === Operator.IN ||\n op === Operator.NOT_IN ||\n op === Operator.ARRAY_CONTAINS_ANY\n ) {\n validateDisjunctiveFilterElements(value, op);\n }\n fieldValue = parseQueryValue(\n dataReader,\n methodName,\n value,\n /* allowArrays= */ op === Operator.IN || op === Operator.NOT_IN\n );\n }\n const filter = FieldFilter.create(fieldPath, op, fieldValue);\n return filter;\n}\n\nexport function newQueryOrderBy(\n query: InternalQuery,\n fieldPath: InternalFieldPath,\n direction: Direction\n): OrderBy {\n if (query.startAt !== null) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Invalid query. You must not call startAt() or startAfter() before ' +\n 'calling orderBy().'\n );\n }\n if (query.endAt !== null) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Invalid query. You must not call endAt() or endBefore() before ' +\n 'calling orderBy().'\n );\n }\n const orderBy = new OrderBy(fieldPath, direction);\n return orderBy;\n}\n\n/**\n * Create a `Bound` from a query and a document.\n *\n * Note that the `Bound` will always include the key of the document\n * and so only the provided document will compare equal to the returned\n * position.\n *\n * Will throw if the document does not contain all fields of the order by\n * of the query or if any of the fields in the order by are an uncommitted\n * server timestamp.\n */\nexport function newQueryBoundFromDocument(\n query: InternalQuery,\n databaseId: DatabaseId,\n methodName: string,\n doc: Document | null,\n inclusive: boolean\n): Bound {\n if (!doc) {\n throw new FirestoreError(\n Code.NOT_FOUND,\n `Can't use a DocumentSnapshot that doesn't exist for ` +\n `${methodName}().`\n );\n }\n\n const components: ProtoValue[] = [];\n\n // Because people expect to continue/end a query at the exact document\n // provided, we need to use the implicit sort order rather than the explicit\n // sort order, because it's guaranteed to contain the document key. That way\n // the position becomes unambiguous and the query continues/ends exactly at\n // the provided document. Without the key (by using the explicit sort\n // orders), multiple documents could match the position, yielding duplicate\n // results.\n for (const orderBy of queryNormalizedOrderBy(query)) {\n if (orderBy.field.isKeyField()) {\n components.push(refValue(databaseId, doc.key));\n } else {\n const value = doc.data.field(orderBy.field);\n if (isServerTimestamp(value)) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Invalid query. You are trying to start or end a query using a ' +\n 'document for which the field \"' +\n orderBy.field +\n '\" is an uncommitted server timestamp. (Since the value of ' +\n 'this field is unknown, you cannot start/end a query with it.)'\n );\n } else if (value !== null) {\n components.push(value);\n } else {\n const field = orderBy.field.canonicalString();\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid query. You are trying to start or end a query using a ` +\n `document for which the field '${field}' (used as the ` +\n `orderBy) does not exist.`\n );\n }\n }\n }\n return new Bound(components, inclusive);\n}\n\n/**\n * Converts a list of field values to a `Bound` for the given query.\n */\nexport function newQueryBoundFromFields(\n query: InternalQuery,\n databaseId: DatabaseId,\n dataReader: UserDataReader,\n methodName: string,\n values: unknown[],\n inclusive: boolean\n): Bound {\n // Use explicit order by's because it has to match the query the user made\n const orderBy = query.explicitOrderBy;\n if (values.length > orderBy.length) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Too many arguments provided to ${methodName}(). ` +\n `The number of arguments must be less than or equal to the ` +\n `number of orderBy() clauses`\n );\n }\n\n const components: ProtoValue[] = [];\n for (let i = 0; i < values.length; i++) {\n const rawValue = values[i];\n const orderByComponent = orderBy[i];\n if (orderByComponent.field.isKeyField()) {\n if (typeof rawValue !== 'string') {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid query. Expected a string for document ID in ` +\n `${methodName}(), but got a ${typeof rawValue}`\n );\n }\n if (!isCollectionGroupQuery(query) && rawValue.indexOf('/') !== -1) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid query. When querying a collection and ordering by documentId(), ` +\n `the value passed to ${methodName}() must be a plain document ID, but ` +\n `'${rawValue}' contains a slash.`\n );\n }\n const path = query.path.child(ResourcePath.fromString(rawValue));\n if (!DocumentKey.isDocumentKey(path)) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid query. When querying a collection group and ordering by ` +\n `documentId(), the value passed to ${methodName}() must result in a ` +\n `valid document path, but '${path}' is not because it contains an odd number ` +\n `of segments.`\n );\n }\n const key = new DocumentKey(path);\n components.push(refValue(databaseId, key));\n } else {\n const wrapped = parseQueryValue(dataReader, methodName, rawValue);\n components.push(wrapped);\n }\n }\n\n return new Bound(components, inclusive);\n}\n\n/**\n * Parses the given `documentIdValue` into a `ReferenceValue`, throwing\n * appropriate errors if the value is anything other than a `DocumentReference`\n * or `string`, or if the string is malformed.\n */\nfunction parseDocumentIdValue(\n databaseId: DatabaseId,\n query: InternalQuery,\n documentIdValue: unknown\n): ProtoValue {\n documentIdValue = getModularInstance(documentIdValue);\n\n if (typeof documentIdValue === 'string') {\n if (documentIdValue === '') {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Invalid query. When querying with documentId(), you ' +\n 'must provide a valid document ID, but it was an empty string.'\n );\n }\n if (!isCollectionGroupQuery(query) && documentIdValue.indexOf('/') !== -1) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid query. When querying a collection by ` +\n `documentId(), you must provide a plain document ID, but ` +\n `'${documentIdValue}' contains a '/' character.`\n );\n }\n const path = query.path.child(ResourcePath.fromString(documentIdValue));\n if (!DocumentKey.isDocumentKey(path)) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid query. When querying a collection group by ` +\n `documentId(), the value provided must result in a valid document path, ` +\n `but '${path}' is not because it has an odd number of segments (${path.length}).`\n );\n }\n return refValue(databaseId, new DocumentKey(path));\n } else if (documentIdValue instanceof DocumentReference) {\n return refValue(databaseId, documentIdValue._key);\n } else {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid query. When querying with documentId(), you must provide a valid ` +\n `string or a DocumentReference, but it was: ` +\n `${valueDescription(documentIdValue)}.`\n );\n }\n}\n\n/**\n * Validates that the value passed into a disjunctive filter satisfies all\n * array requirements.\n */\nfunction validateDisjunctiveFilterElements(\n value: unknown,\n operator: Operator\n): void {\n if (!Array.isArray(value) || value.length === 0) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Invalid Query. A non-empty array is required for ' +\n `'${operator.toString()}' filters.`\n );\n }\n}\n\n/**\n * Given an operator, returns the set of operators that cannot be used with it.\n *\n * This is not a comprehensive check, and this function should be removed in the\n * long term. Validations should occur in the Firestore backend.\n *\n * Operators in a query must adhere to the following set of rules:\n * 1. Only one inequality per query.\n * 2. `NOT_IN` cannot be used with array, disjunctive, or `NOT_EQUAL` operators.\n */\nfunction conflictingOps(op: Operator): Operator[] {\n switch (op) {\n case Operator.NOT_EQUAL:\n return [Operator.NOT_EQUAL, Operator.NOT_IN];\n case Operator.ARRAY_CONTAINS_ANY:\n case Operator.IN:\n return [Operator.NOT_IN];\n case Operator.NOT_IN:\n return [\n Operator.ARRAY_CONTAINS_ANY,\n Operator.IN,\n Operator.NOT_IN,\n Operator.NOT_EQUAL\n ];\n default:\n return [];\n }\n}\n\nfunction validateNewFieldFilter(\n query: InternalQuery,\n fieldFilter: FieldFilter\n): void {\n const conflictingOp = findOpInsideFilters(\n query.filters,\n conflictingOps(fieldFilter.op)\n );\n if (conflictingOp !== null) {\n // Special case when it's a duplicate op to give a slightly clearer error message.\n if (conflictingOp === fieldFilter.op) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Invalid query. You cannot use more than one ' +\n `'${fieldFilter.op.toString()}' filter.`\n );\n } else {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Invalid query. You cannot use '${fieldFilter.op.toString()}' filters ` +\n `with '${conflictingOp.toString()}' filters.`\n );\n }\n }\n}\n\nfunction validateNewFilter(query: InternalQuery, filter: Filter): void {\n let testQuery = query;\n const subFilters = filter.getFlattenedFilters();\n for (const subFilter of subFilters) {\n validateNewFieldFilter(testQuery, subFilter);\n testQuery = queryWithAddedFilter(testQuery, subFilter);\n }\n}\n\n// Checks if any of the provided filter operators are included in the given list of filters and\n// returns the first one that is, or null if none are.\nfunction findOpInsideFilters(\n filters: Filter[],\n operators: Operator[]\n): Operator | null {\n for (const filter of filters) {\n for (const fieldFilter of filter.getFlattenedFilters()) {\n if (operators.indexOf(fieldFilter.op) >= 0) {\n return fieldFilter.op;\n }\n }\n }\n return null;\n}\n\nexport function validateQueryFilterConstraint(\n functionName: string,\n queryConstraint: AppliableConstraint\n): void {\n if (\n !(queryConstraint instanceof QueryFieldFilterConstraint) &&\n !(queryConstraint instanceof QueryCompositeFilterConstraint)\n ) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Function ${functionName}() requires AppliableConstraints created with a call to 'where(...)', 'or(...)', or 'and(...)'.`\n );\n }\n}\n\nfunction validateQueryConstraintArray(\n queryConstraint: AppliableConstraint[]\n): void {\n const compositeFilterCount = queryConstraint.filter(\n filter => filter instanceof QueryCompositeFilterConstraint\n ).length;\n const fieldFilterCount = queryConstraint.filter(\n filter => filter instanceof QueryFieldFilterConstraint\n ).length;\n\n if (\n compositeFilterCount > 1 ||\n (compositeFilterCount > 0 && fieldFilterCount > 0)\n ) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'InvalidQuery. When using composite filters, you cannot use ' +\n 'more than one filter at the top level. Consider nesting the multiple ' +\n 'filters within an `and(...)` statement. For example: ' +\n 'change `query(query, where(...), or(...))` to ' +\n '`query(query, and(where(...), or(...)))`.'\n );\n }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n DocumentData as PublicDocumentData,\n SetOptions as PublicSetOptions\n} from '@firebase/firestore-types';\nimport { getModularInstance } from '@firebase/util';\n\nimport { LimitType } from '../core/query';\nimport { DeleteMutation, Precondition } from '../model/mutation';\nimport {\n invokeBatchGetDocumentsRpc,\n invokeCommitRpc,\n invokeRunQueryRpc\n} from '../remote/datastore';\nimport { hardAssert } from '../util/assert';\nimport { ByteString } from '../util/byte_string';\nimport { cast } from '../util/input_validation';\n\nimport { Bytes } from './bytes';\nimport { getDatastore } from './components';\nimport { Firestore } from './database';\nimport { FieldPath } from './field_path';\nimport { validateHasExplicitOrderByForLimitToLast } from './query';\nimport {\n CollectionReference,\n doc,\n DocumentData,\n DocumentReference,\n PartialWithFieldValue,\n Query,\n SetOptions,\n UpdateData,\n WithFieldValue\n} from './reference';\nimport {\n DocumentSnapshot,\n QueryDocumentSnapshot,\n QuerySnapshot\n} from './snapshot';\nimport {\n newUserDataReader,\n ParsedUpdateData,\n parseSetData,\n parseUpdateData,\n parseUpdateVarargs,\n UntypedFirestoreDataConverter\n} from './user_data_reader';\nimport { AbstractUserDataWriter } from './user_data_writer';\n\n/**\n * Converts custom model object of type T into `DocumentData` by applying the\n * converter if it exists.\n *\n * This function is used when converting user objects to `DocumentData`\n * because we want to provide the user with a more specific error message if\n * their `set()` or fails due to invalid data originating from a `toFirestore()`\n * call.\n */\nexport function applyFirestoreDataConverter<T>(\n converter: UntypedFirestoreDataConverter<T> | null,\n value: WithFieldValue<T> | PartialWithFieldValue<T>,\n options?: PublicSetOptions\n): PublicDocumentData {\n let convertedValue;\n if (converter) {\n if (options && (options.merge || options.mergeFields)) {\n // Cast to `any` in order to satisfy the union type constraint on\n // toFirestore().\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n convertedValue = (converter as any).toFirestore(value, options);\n } else {\n convertedValue = converter.toFirestore(value as WithFieldValue<T>);\n }\n } else {\n convertedValue = value as PublicDocumentData;\n }\n return convertedValue;\n}\n\nexport class LiteUserDataWriter extends AbstractUserDataWriter {\n constructor(protected firestore: Firestore) {\n super();\n }\n\n protected convertBytes(bytes: ByteString): Bytes {\n return new Bytes(bytes);\n }\n\n protected convertReference(name: string): DocumentReference {\n const key = this.convertDocumentKey(name, this.firestore._databaseId);\n return new DocumentReference(this.firestore, /* converter= */ null, key);\n }\n}\n\n/**\n * Reads the document referred to by the specified document reference.\n *\n * All documents are directly fetched from the server, even if the document was\n * previously read or modified. Recent modifications are only reflected in the\n * retrieved `DocumentSnapshot` if they have already been applied by the\n * backend. If the client is offline, the read fails. If you like to use\n * caching or see local modifications, please use the full Firestore SDK.\n *\n * @param reference - The reference of the document to fetch.\n * @returns A Promise resolved with a `DocumentSnapshot` containing the current\n * document contents.\n */\nexport function getDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>\n): Promise<DocumentSnapshot<AppModelType, DbModelType>> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const datastore = getDatastore(reference.firestore);\n const userDataWriter = new LiteUserDataWriter(reference.firestore);\n\n return invokeBatchGetDocumentsRpc(datastore, [reference._key]).then(\n result => {\n hardAssert(\n result.length === 1,\n 0x3d02,\n 'Expected a single document result'\n );\n const document = result[0];\n return new DocumentSnapshot<AppModelType, DbModelType>(\n reference.firestore,\n userDataWriter,\n reference._key,\n document.isFoundDocument() ? document : null,\n reference.converter\n );\n }\n );\n}\n\n/**\n * Executes the query and returns the results as a {@link QuerySnapshot}.\n *\n * All queries are executed directly by the server, even if the query was\n * previously executed. Recent modifications are only reflected in the retrieved\n * results if they have already been applied by the backend. If the client is\n * offline, the operation fails. To see previously cached result and local\n * modifications, use the full Firestore SDK.\n *\n * @param query - The `Query` to execute.\n * @returns A Promise that will be resolved with the results of the query.\n */\nexport function getDocs<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n): Promise<QuerySnapshot<AppModelType, DbModelType>> {\n query = cast<Query<AppModelType, DbModelType>>(query, Query);\n validateHasExplicitOrderByForLimitToLast(query._query);\n\n const datastore = getDatastore(query.firestore);\n const userDataWriter = new LiteUserDataWriter(query.firestore);\n return invokeRunQueryRpc(datastore, query._query).then(result => {\n const docs = result.map(\n doc =>\n new QueryDocumentSnapshot<AppModelType, DbModelType>(\n query.firestore,\n userDataWriter,\n doc.key,\n doc,\n query.converter\n )\n );\n\n if (query._query.limitType === LimitType.Last) {\n // Limit to last queries reverse the orderBy constraint that was\n // specified by the user. As such, we need to reverse the order of the\n // results to return the documents in the expected order.\n docs.reverse();\n }\n\n return new QuerySnapshot<AppModelType, DbModelType>(query, docs);\n });\n}\n\n/**\n * Writes to the document referred to by the specified `DocumentReference`. If\n * the document does not yet exist, it will be created.\n *\n * The result of this write will only be reflected in document reads that occur\n * after the returned promise resolves. If the client is offline, the\n * write fails. If you would like to see local modifications or buffer writes\n * until the client is online, use the full Firestore SDK.\n *\n * @param reference - A reference to the document to write.\n * @param data - A map of the fields and values for the document.\n * @throws Error - If the provided input is not a valid Firestore document.\n * @returns A `Promise` resolved once the data has been successfully written\n * to the backend.\n */\nexport function setDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n data: WithFieldValue<AppModelType>\n): Promise<void>;\n/**\n * Writes to the document referred to by the specified `DocumentReference`. If\n * the document does not yet exist, it will be created. If you provide `merge`\n * or `mergeFields`, the provided data can be merged into an existing document.\n *\n * The result of this write will only be reflected in document reads that occur\n * after the returned promise resolves. If the client is offline, the\n * write fails. If you would like to see local modifications or buffer writes\n * until the client is online, use the full Firestore SDK.\n *\n * @param reference - A reference to the document to write.\n * @param data - A map of the fields and values for the document.\n * @param options - An object to configure the set behavior.\n * @throws Error - If the provided input is not a valid Firestore document.\n * @returns A `Promise` resolved once the data has been successfully written\n * to the backend.\n */\nexport function setDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n data: PartialWithFieldValue<AppModelType>,\n options: SetOptions\n): Promise<void>;\nexport function setDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n data: PartialWithFieldValue<AppModelType>,\n options?: SetOptions\n): Promise<void> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const convertedValue = applyFirestoreDataConverter(\n reference.converter,\n data,\n options\n );\n const dataReader = newUserDataReader(reference.firestore);\n const parsed = parseSetData(\n dataReader,\n 'setDoc',\n reference._key,\n convertedValue,\n reference.converter !== null,\n options\n );\n\n const datastore = getDatastore(reference.firestore);\n return invokeCommitRpc(datastore, [\n parsed.toMutation(reference._key, Precondition.none())\n ]);\n}\n\n/**\n * Updates fields in the document referred to by the specified\n * `DocumentReference`. The update will fail if applied to a document that does\n * not exist.\n *\n * The result of this update will only be reflected in document reads that occur\n * after the returned promise resolves. If the client is offline, the\n * update fails. If you would like to see local modifications or buffer writes\n * until the client is online, use the full Firestore SDK.\n *\n * @param reference - A reference to the document to update.\n * @param data - An object containing the fields and values with which to\n * update the document. Fields can contain dots to reference nested fields\n * within the document.\n * @throws Error - If the provided input is not valid Firestore data.\n * @returns A `Promise` resolved once the data has been successfully written\n * to the backend.\n */\nexport function updateDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n data: UpdateData<DbModelType>\n): Promise<void>;\n/**\n * Updates fields in the document referred to by the specified\n * `DocumentReference` The update will fail if applied to a document that does\n * not exist.\n *\n * Nested fields can be updated by providing dot-separated field path\n * strings or by providing `FieldPath` objects.\n *\n * The result of this update will only be reflected in document reads that occur\n * after the returned promise resolves. If the client is offline, the\n * update fails. If you would like to see local modifications or buffer writes\n * until the client is online, use the full Firestore SDK.\n *\n * @param reference - A reference to the document to update.\n * @param field - The first field to update.\n * @param value - The first value.\n * @param moreFieldsAndValues - Additional key value pairs.\n * @throws Error - If the provided input is not valid Firestore data.\n * @returns A `Promise` resolved once the data has been successfully written\n * to the backend.\n */\nexport function updateDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n field: string | FieldPath,\n value: unknown,\n ...moreFieldsAndValues: unknown[]\n): Promise<void>;\nexport function updateDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n fieldOrUpdateData: string | FieldPath | UpdateData<DbModelType>,\n value?: unknown,\n ...moreFieldsAndValues: unknown[]\n): Promise<void> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const dataReader = newUserDataReader(reference.firestore);\n\n // For Compat types, we have to \"extract\" the underlying types before\n // performing validation.\n fieldOrUpdateData = getModularInstance(fieldOrUpdateData);\n\n let parsed: ParsedUpdateData;\n if (\n typeof fieldOrUpdateData === 'string' ||\n fieldOrUpdateData instanceof FieldPath\n ) {\n parsed = parseUpdateVarargs(\n dataReader,\n 'updateDoc',\n reference._key,\n fieldOrUpdateData,\n value,\n moreFieldsAndValues\n );\n } else {\n parsed = parseUpdateData(\n dataReader,\n 'updateDoc',\n reference._key,\n fieldOrUpdateData\n );\n }\n\n const datastore = getDatastore(reference.firestore);\n return invokeCommitRpc(datastore, [\n parsed.toMutation(reference._key, Precondition.exists(true))\n ]);\n}\n\n/**\n * Deletes the document referred to by the specified `DocumentReference`.\n *\n * The deletion will only be reflected in document reads that occur after the\n * returned promise resolves. If the client is offline, the\n * delete fails. If you would like to see local modifications or buffer writes\n * until the client is online, use the full Firestore SDK.\n *\n * @param reference - A reference to the document to delete.\n * @returns A `Promise` resolved once the document has been successfully\n * deleted from the backend.\n */\nexport function deleteDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>\n): Promise<void> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const datastore = getDatastore(reference.firestore);\n return invokeCommitRpc(datastore, [\n new DeleteMutation(reference._key, Precondition.none())\n ]);\n}\n\n/**\n * Add a new document to specified `CollectionReference` with the given data,\n * assigning it a document ID automatically.\n *\n * The result of this write will only be reflected in document reads that occur\n * after the returned promise resolves. If the client is offline, the\n * write fails. If you would like to see local modifications or buffer writes\n * until the client is online, use the full Firestore SDK.\n *\n * @param reference - A reference to the collection to add this document to.\n * @param data - An Object containing the data for the new document.\n * @throws Error - If the provided input is not a valid Firestore document.\n * @returns A `Promise` resolved with a `DocumentReference` pointing to the\n * newly created document after it has been written to the backend.\n */\nexport function addDoc<AppModelType, DbModelType extends DocumentData>(\n reference: CollectionReference<AppModelType, DbModelType>,\n data: WithFieldValue<AppModelType>\n): Promise<DocumentReference<AppModelType, DbModelType>> {\n reference = cast<CollectionReference<AppModelType, DbModelType>>(\n reference,\n CollectionReference\n );\n const docRef = doc(reference);\n\n const convertedValue = applyFirestoreDataConverter(\n reference.converter,\n data as PartialWithFieldValue<AppModelType>\n );\n\n const dataReader = newUserDataReader(reference.firestore);\n const parsed = parseSetData(\n dataReader,\n 'addDoc',\n docRef._key,\n convertedValue,\n docRef.converter !== null,\n {}\n );\n\n const datastore = getDatastore(reference.firestore);\n return invokeCommitRpc(datastore, [\n parsed.toMutation(docRef._key, Precondition.exists(false))\n ]).then(() => docRef);\n}\n","/**\n * @license\n * Copyright 2022 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 { deepEqual } from '@firebase/util';\n\nimport { AggregateImpl } from '../core/aggregate';\nimport { ApiClientObjectMap, Value } from '../protos/firestore_proto_api';\nimport { invokeRunAggregationQueryRpc } from '../remote/datastore';\nimport { cast } from '../util/input_validation';\nimport { mapToArray } from '../util/obj';\n\nimport {\n AggregateField,\n AggregateQuerySnapshot,\n AggregateSpec\n} from './aggregate_types';\nimport { getDatastore } from './components';\nimport { Firestore } from './database';\nimport { FieldPath } from './field_path';\nimport { DocumentData, Query, queryEqual } from './reference';\nimport { LiteUserDataWriter } from './reference_impl';\nimport { fieldPathFromArgument } from './user_data_reader';\n\n/**\n * Calculates the number of documents in the result set of the given query\n * without actually downloading the documents.\n *\n * Using this function to count the documents is efficient because only the\n * final count, not the documents' data, is downloaded. This function can\n * count the documents in cases where the result set is prohibitively large to\n * download entirely (thousands of documents).\n *\n * @param query - The query whose result set size is calculated.\n * @returns A Promise that will be resolved with the count; the count can be\n * retrieved from `snapshot.data().count`, where `snapshot` is the\n * `AggregateQuerySnapshot` to which the returned Promise resolves.\n */\nexport function getCount<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n): Promise<\n AggregateQuerySnapshot<\n { count: AggregateField<number> },\n AppModelType,\n DbModelType\n >\n> {\n const countQuerySpec: { count: AggregateField<number> } = {\n count: count()\n };\n\n return getAggregate(query, countQuerySpec);\n}\n\n/**\n * Calculates the specified aggregations over the documents in the result\n * set of the given query without actually downloading the documents.\n *\n * Using this function to perform aggregations is efficient because only the\n * final aggregation values, not the documents' data, are downloaded. This\n * function can perform aggregations of the documents in cases where the result\n * set is prohibitively large to download entirely (thousands of documents).\n *\n * @param query - The query whose result set is aggregated over.\n * @param aggregateSpec - An `AggregateSpec` object that specifies the aggregates\n * to perform over the result set. The AggregateSpec specifies aliases for each\n * aggregate, which can be used to retrieve the aggregate result.\n * @example\n * ```typescript\n * const aggregateSnapshot = await getAggregate(query, {\n * countOfDocs: count(),\n * totalHours: sum('hours'),\n * averageScore: average('score')\n * });\n *\n * const countOfDocs: number = aggregateSnapshot.data().countOfDocs;\n * const totalHours: number = aggregateSnapshot.data().totalHours;\n * const averageScore: number | null = aggregateSnapshot.data().averageScore;\n * ```\n */\nexport function getAggregate<\n AggregateSpecType extends AggregateSpec,\n AppModelType,\n DbModelType extends DocumentData\n>(\n query: Query<AppModelType, DbModelType>,\n aggregateSpec: AggregateSpecType\n): Promise<\n AggregateQuerySnapshot<AggregateSpecType, AppModelType, DbModelType>\n> {\n const firestore = cast(query.firestore, Firestore);\n const datastore = getDatastore(firestore);\n\n const internalAggregates = mapToArray(aggregateSpec, (aggregate, alias) => {\n return new AggregateImpl(\n alias,\n aggregate.aggregateType,\n aggregate._internalFieldPath\n );\n });\n\n // Run the aggregation and convert the results\n return invokeRunAggregationQueryRpc(\n datastore,\n query._query,\n internalAggregates\n ).then(aggregateResult =>\n convertToAggregateQuerySnapshot(firestore, query, aggregateResult)\n );\n}\n\nfunction convertToAggregateQuerySnapshot<\n AggregateSpecType extends AggregateSpec,\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n query: Query<AppModelType, DbModelType>,\n aggregateResult: ApiClientObjectMap<Value>\n): AggregateQuerySnapshot<AggregateSpecType, AppModelType, DbModelType> {\n const userDataWriter = new LiteUserDataWriter(firestore);\n const querySnapshot = new AggregateQuerySnapshot<\n AggregateSpecType,\n AppModelType,\n DbModelType\n >(query, userDataWriter, aggregateResult);\n return querySnapshot;\n}\n\n/**\n * Create an AggregateField object that can be used to compute the sum of\n * a specified field over a range of documents in the result set of a query.\n * @param field - Specifies the field to sum across the result set.\n */\nexport function sum(field: string | FieldPath): AggregateField<number> {\n return new AggregateField('sum', fieldPathFromArgument('sum', field));\n}\n\n/**\n * Create an AggregateField object that can be used to compute the average of\n * a specified field over a range of documents in the result set of a query.\n * @param field - Specifies the field to average across the result set.\n */\nexport function average(\n field: string | FieldPath\n): AggregateField<number | null> {\n return new AggregateField('avg', fieldPathFromArgument('average', field));\n}\n\n/**\n * Create an AggregateField object that can be used to compute the count of\n * documents in the result set of a query.\n */\nexport function count(): AggregateField<number> {\n return new AggregateField('count');\n}\n\n/**\n * Compares two 'AggregateField` instances for equality.\n *\n * @param left - Compare this AggregateField to the `right`.\n * @param right - Compare this AggregateField to the `left`.\n */\nexport function aggregateFieldEqual(\n left: AggregateField<unknown>,\n right: AggregateField<unknown>\n): boolean {\n return (\n left instanceof AggregateField &&\n right instanceof AggregateField &&\n left.aggregateType === right.aggregateType &&\n left._internalFieldPath?.canonicalString() ===\n right._internalFieldPath?.canonicalString()\n );\n}\n\n/**\n * Compares two `AggregateQuerySnapshot` instances for equality.\n *\n * Two `AggregateQuerySnapshot` instances are considered \"equal\" if they have\n * underlying queries that compare equal, and the same data.\n *\n * @param left - The first `AggregateQuerySnapshot` to compare.\n * @param right - The second `AggregateQuerySnapshot` to compare.\n *\n * @returns `true` if the objects are \"equal\", as defined above, or `false`\n * otherwise.\n */\nexport function aggregateQuerySnapshotEqual<\n AggregateSpecType extends AggregateSpec,\n AppModelType,\n DbModelType extends DocumentData\n>(\n left: AggregateQuerySnapshot<AggregateSpecType, AppModelType, DbModelType>,\n right: AggregateQuerySnapshot<AggregateSpecType, AppModelType, DbModelType>\n): boolean {\n return (\n queryEqual(left.query, right.query) && deepEqual(left.data(), right.data())\n );\n}\n","/**\n * @license\n * Copyright 2022 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 { AggregateImpl } from '../core/aggregate';\nimport { firestoreClientRunAggregateQuery } from '../core/firestore_client';\nimport { count } from '../lite-api/aggregate';\nimport {\n AggregateField,\n AggregateQuerySnapshot,\n AggregateSpec\n} from '../lite-api/aggregate_types';\nimport { DocumentData, Query } from '../lite-api/reference';\nimport { ApiClientObjectMap, Value } from '../protos/firestore_proto_api';\nimport { cast } from '../util/input_validation';\nimport { mapToArray } from '../util/obj';\n\nimport { ensureFirestoreConfigured, Firestore } from './database';\nimport { ExpUserDataWriter } from './user_data_writer';\n\nexport {\n aggregateQuerySnapshotEqual,\n count,\n sum,\n average,\n aggregateFieldEqual\n} from '../lite-api/aggregate';\n\n/**\n * Calculates the number of documents in the result set of the given query\n * without actually downloading the documents.\n *\n * Using this function to count the documents is efficient because only the\n * final count, not the documents' data, is downloaded. This function can\n * count the documents in cases where the result set is prohibitively large to\n * download entirely (thousands of documents).\n *\n * The result received from the server is presented, unaltered, without\n * considering any local state. That is, documents in the local cache are not\n * taken into consideration, neither are local modifications not yet\n * synchronized with the server. Previously-downloaded results, if any, are not\n * used. Every invocation of this function necessarily involves a round trip to\n * the server.\n *\n * @param query - The query whose result set size is calculated.\n * @returns A Promise that will be resolved with the count; the count can be\n * retrieved from `snapshot.data().count`, where `snapshot` is the\n * `AggregateQuerySnapshot` to which the returned Promise resolves.\n */\nexport function getCountFromServer<\n AppModelType,\n DbModelType extends DocumentData\n>(\n query: Query<AppModelType, DbModelType>\n): Promise<\n AggregateQuerySnapshot<\n { count: AggregateField<number> },\n AppModelType,\n DbModelType\n >\n> {\n const countQuerySpec: { count: AggregateField<number> } = {\n count: count()\n };\n\n return getAggregateFromServer(query, countQuerySpec);\n}\n\n/**\n * Calculates the specified aggregations over the documents in the result\n * set of the given query without actually downloading the documents.\n *\n * Using this function to perform aggregations is efficient because only the\n * final aggregation values, not the documents' data, are downloaded. This\n * function can perform aggregations of the documents in cases where the result\n * set is prohibitively large to download entirely (thousands of documents).\n *\n * The result received from the server is presented, unaltered, without\n * considering any local state. That is, documents in the local cache are not\n * taken into consideration, neither are local modifications not yet\n * synchronized with the server. Previously-downloaded results, if any, are not\n * used. Every invocation of this function necessarily involves a round trip to\n * the server.\n *\n * @param query - The query whose result set is aggregated over.\n * @param aggregateSpec - An `AggregateSpec` object that specifies the aggregates\n * to perform over the result set. The AggregateSpec specifies aliases for each\n * aggregate, which can be used to retrieve the aggregate result.\n * @example\n * ```typescript\n * const aggregateSnapshot = await getAggregateFromServer(query, {\n * countOfDocs: count(),\n * totalHours: sum('hours'),\n * averageScore: average('score')\n * });\n *\n * const countOfDocs: number = aggregateSnapshot.data().countOfDocs;\n * const totalHours: number = aggregateSnapshot.data().totalHours;\n * const averageScore: number | null = aggregateSnapshot.data().averageScore;\n * ```\n */\nexport function getAggregateFromServer<\n AggregateSpecType extends AggregateSpec,\n AppModelType,\n DbModelType extends DocumentData\n>(\n query: Query<AppModelType, DbModelType>,\n aggregateSpec: AggregateSpecType\n): Promise<\n AggregateQuerySnapshot<AggregateSpecType, AppModelType, DbModelType>\n> {\n const firestore = cast(query.firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n\n const internalAggregates = mapToArray(aggregateSpec, (aggregate, alias) => {\n return new AggregateImpl(\n alias,\n aggregate.aggregateType,\n aggregate._internalFieldPath\n );\n });\n\n // Run the aggregation and convert the results\n return firestoreClientRunAggregateQuery(\n client,\n query._query,\n internalAggregates\n ).then(aggregateResult =>\n convertToAggregateQuerySnapshot(firestore, query, aggregateResult)\n );\n}\n\n/**\n * Converts the core aggregation result to an `AggregateQuerySnapshot`\n * that can be returned to the consumer.\n * @param query\n * @param aggregateResult - Core aggregation result\n * @internal\n */\nfunction convertToAggregateQuerySnapshot<\n AggregateSpecType extends AggregateSpec,\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n query: Query<AppModelType, DbModelType>,\n aggregateResult: ApiClientObjectMap<Value>\n): AggregateQuerySnapshot<AggregateSpecType, AppModelType, DbModelType> {\n const userDataWriter = new ExpUserDataWriter(firestore);\n const querySnapshot = new AggregateQuerySnapshot<\n AggregateSpecType,\n AppModelType,\n DbModelType\n >(query, userDataWriter, aggregateResult);\n return querySnapshot;\n}\n","/**\n * @license\n * Copyright 2023 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 IndexedDbOfflineComponentProvider,\n LruGcMemoryOfflineComponentProvider,\n MemoryOfflineComponentProvider,\n MultiTabOfflineComponentProvider,\n OfflineComponentProviderFactory,\n OnlineComponentProviderFactory,\n OnlineComponentProvider\n} from '../core/component_provider';\n\n/* eslint @typescript-eslint/consistent-type-definitions: [\"error\", \"type\"] */\n/**\n * Provides an in-memory cache to the SDK. This is the default cache unless explicitly\n * configured otherwise.\n *\n * To use, create an instance using the factory function {@link memoryLocalCache()}, then\n * set the instance to `FirestoreSettings.cache` and call `initializeFirestore` using\n * the settings object.\n */\nexport type MemoryLocalCache = {\n kind: 'memory';\n /**\n * @internal\n */\n _onlineComponentProvider: OnlineComponentProviderFactory;\n /**\n * @internal\n */\n _offlineComponentProvider: OfflineComponentProviderFactory;\n};\n\nclass MemoryLocalCacheImpl implements MemoryLocalCache {\n kind: 'memory' = 'memory';\n /**\n * @internal\n */\n _onlineComponentProvider: OnlineComponentProviderFactory;\n /**\n * @internal\n */\n _offlineComponentProvider: OfflineComponentProviderFactory;\n\n constructor(settings?: MemoryCacheSettings) {\n this._onlineComponentProvider = OnlineComponentProvider.provider;\n if (settings?.garbageCollector) {\n this._offlineComponentProvider =\n settings.garbageCollector._offlineComponentProvider;\n } else {\n this._offlineComponentProvider = {\n build: () => new LruGcMemoryOfflineComponentProvider(undefined)\n };\n }\n }\n\n toJSON(): {} {\n return { kind: this.kind };\n }\n}\n\n/**\n * Provides a persistent cache backed by IndexedDb to the SDK.\n *\n * To use, create an instance using the factory function {@link persistentLocalCache()}, then\n * set the instance to `FirestoreSettings.cache` and call `initializeFirestore` using\n * the settings object.\n */\nexport type PersistentLocalCache = {\n kind: 'persistent';\n /**\n * @internal\n */\n _onlineComponentProvider: OnlineComponentProviderFactory;\n /**\n * @internal\n */\n _offlineComponentProvider: OfflineComponentProviderFactory;\n};\n\nclass PersistentLocalCacheImpl implements PersistentLocalCache {\n kind: 'persistent' = 'persistent';\n /**\n * @internal\n */\n _onlineComponentProvider: OnlineComponentProviderFactory;\n /**\n * @internal\n */\n _offlineComponentProvider: OfflineComponentProviderFactory;\n\n constructor(settings: PersistentCacheSettings | undefined) {\n let tabManager: PersistentTabManager;\n if (settings?.tabManager) {\n settings.tabManager._initialize(settings);\n tabManager = settings.tabManager;\n } else {\n tabManager = persistentSingleTabManager(undefined);\n tabManager._initialize(settings);\n }\n this._onlineComponentProvider = tabManager._onlineComponentProvider!;\n this._offlineComponentProvider = tabManager._offlineComponentProvider!;\n }\n\n toJSON(): {} {\n return { kind: this.kind };\n }\n}\n\n/**\n * Union type from all supported SDK cache layer.\n */\nexport type FirestoreLocalCache = MemoryLocalCache | PersistentLocalCache;\n\n/**\n * Union type from all support garbage collectors for memory local cache.\n */\nexport type MemoryGarbageCollector =\n | MemoryEagerGarbageCollector\n | MemoryLruGarbageCollector;\n\n/**\n * A garbage collector deletes documents whenever they are not part of any\n * active queries, and have no local mutations attached to them.\n *\n * This collector tries to ensure lowest memory footprints from the SDK,\n * at the risk of documents not being cached for offline queries or for\n * direct queries to the cache.\n *\n * Use factory function {@link memoryEagerGarbageCollector()} to create an\n * instance of this collector.\n */\nexport type MemoryEagerGarbageCollector = {\n kind: 'memoryEager';\n /**\n * @internal\n */\n _offlineComponentProvider: OfflineComponentProviderFactory;\n};\n\n/**\n * A garbage collector deletes Least-Recently-Used documents in multiple\n * batches.\n *\n * This collector is configured with a target size, and will only perform\n * collection when the cached documents exceed the target size. It avoids\n * querying backend repeated for the same query or document, at the risk\n * of having a larger memory footprint.\n *\n * Use factory function {@link memoryLruGarbageCollector()} to create a\n * instance of this collector.\n */\nexport type MemoryLruGarbageCollector = {\n kind: 'memoryLru';\n /**\n * @internal\n */\n _offlineComponentProvider: OfflineComponentProviderFactory;\n};\n\nclass MemoryEagerGarbageCollectorImpl implements MemoryEagerGarbageCollector {\n kind: 'memoryEager' = 'memoryEager';\n /**\n * @internal\n */\n _offlineComponentProvider: OfflineComponentProviderFactory;\n\n constructor() {\n this._offlineComponentProvider = MemoryOfflineComponentProvider.provider;\n }\n\n toJSON(): {} {\n return { kind: this.kind };\n }\n}\n\nclass MemoryLruGarbageCollectorImpl implements MemoryLruGarbageCollector {\n kind: 'memoryLru' = 'memoryLru';\n /**\n * @internal\n */\n _offlineComponentProvider: OfflineComponentProviderFactory;\n\n constructor(cacheSize?: number) {\n this._offlineComponentProvider = {\n build: () => new LruGcMemoryOfflineComponentProvider(cacheSize)\n };\n }\n\n toJSON(): {} {\n return { kind: this.kind };\n }\n}\n\n/**\n * Creates an instance of `MemoryEagerGarbageCollector`. This is also the\n * default garbage collector unless it is explicitly specified otherwise.\n */\nexport function memoryEagerGarbageCollector(): MemoryEagerGarbageCollector {\n return new MemoryEagerGarbageCollectorImpl();\n}\n\n/**\n * Creates an instance of `MemoryLruGarbageCollector`.\n *\n * A target size can be specified as part of the setting parameter. The\n * collector will start deleting documents once the cache size exceeds\n * the given size. The default cache size is 40MB (40 * 1024 * 1024 bytes).\n */\nexport function memoryLruGarbageCollector(settings?: {\n cacheSizeBytes?: number;\n}): MemoryLruGarbageCollector {\n return new MemoryLruGarbageCollectorImpl(settings?.cacheSizeBytes);\n}\n\n/**\n * An settings object to configure an `MemoryLocalCache` instance.\n */\nexport type MemoryCacheSettings = {\n /**\n * The garbage collector to use, for the memory cache layer.\n * A `MemoryEagerGarbageCollector` is used when this is undefined.\n */\n garbageCollector?: MemoryGarbageCollector;\n};\n\n/**\n * Creates an instance of `MemoryLocalCache`. The instance can be set to\n * `FirestoreSettings.cache` to tell the SDK which cache layer to use.\n */\nexport function memoryLocalCache(\n settings?: MemoryCacheSettings\n): MemoryLocalCache {\n return new MemoryLocalCacheImpl(settings);\n}\n\n/**\n * An settings object to configure an `PersistentLocalCache` instance.\n *\n * Persistent cache cannot be used in a Node.js environment.\n */\nexport type PersistentCacheSettings = {\n /**\n * An approximate cache size threshold for the on-disk data. If the cache\n * grows beyond this size, Firestore will start removing data that hasn't been\n * recently used. The SDK does not guarantee that the cache will stay below\n * that size, only that if the cache exceeds the given size, cleanup will be\n * attempted.\n *\n * The default value is 40 MB. The threshold must be set to at least 1 MB, and\n * can be set to `CACHE_SIZE_UNLIMITED` to disable garbage collection.\n */\n cacheSizeBytes?: number;\n\n /**\n * Specifies how multiple tabs/windows will be managed by the SDK.\n */\n tabManager?: PersistentTabManager;\n};\n\n/**\n * Creates an instance of `PersistentLocalCache`. The instance can be set to\n * `FirestoreSettings.cache` to tell the SDK which cache layer to use.\n *\n * Persistent cache cannot be used in a Node.js environment.\n */\nexport function persistentLocalCache(\n settings?: PersistentCacheSettings\n): PersistentLocalCache {\n return new PersistentLocalCacheImpl(settings);\n}\n\n/**\n * A tab manager supporting only one tab, no synchronization will be\n * performed across tabs.\n */\nexport type PersistentSingleTabManager = {\n kind: 'persistentSingleTab';\n /**\n * @internal\n */\n _initialize: (\n settings: Omit<PersistentCacheSettings, 'tabManager'> | undefined\n ) => void;\n /**\n * @internal\n */\n _onlineComponentProvider?: OnlineComponentProviderFactory;\n /**\n * @internal\n */\n _offlineComponentProvider?: OfflineComponentProviderFactory;\n};\n\nclass SingleTabManagerImpl implements PersistentSingleTabManager {\n kind: 'persistentSingleTab' = 'persistentSingleTab';\n\n /**\n * @internal\n */\n _onlineComponentProvider?: OnlineComponentProviderFactory;\n /**\n * @internal\n */\n _offlineComponentProvider?: OfflineComponentProviderFactory;\n\n constructor(private forceOwnership?: boolean) {}\n\n toJSON(): {} {\n return { kind: this.kind };\n }\n\n /**\n * @internal\n */\n _initialize(\n settings: Omit<PersistentCacheSettings, 'tabManager'> | undefined\n ): void {\n this._onlineComponentProvider = OnlineComponentProvider.provider;\n this._offlineComponentProvider = {\n build: (onlineComponents: OnlineComponentProvider) =>\n new IndexedDbOfflineComponentProvider(\n onlineComponents,\n settings?.cacheSizeBytes,\n this.forceOwnership\n )\n };\n }\n}\n\n/**\n * A tab manager supporting multiple tabs. SDK will synchronize queries and\n * mutations done across all tabs using the SDK.\n */\nexport type PersistentMultipleTabManager = {\n kind: 'PersistentMultipleTab';\n /**\n * @internal\n */\n _initialize: (settings: Omit<PersistentCacheSettings, 'tabManager'>) => void;\n /**\n * @internal\n */\n _onlineComponentProvider?: OnlineComponentProviderFactory;\n /**\n * @internal\n */\n\n _offlineComponentProvider?: OfflineComponentProviderFactory;\n};\n\nclass MultiTabManagerImpl implements PersistentMultipleTabManager {\n kind: 'PersistentMultipleTab' = 'PersistentMultipleTab';\n\n /**\n * @internal\n */\n _onlineComponentProvider?: OnlineComponentProviderFactory;\n /**\n * @internal\n */\n _offlineComponentProvider?: OfflineComponentProviderFactory;\n\n toJSON(): {} {\n return { kind: this.kind };\n }\n\n /**\n * @internal\n */\n _initialize(\n settings: Omit<PersistentCacheSettings, 'tabManager'> | undefined\n ): void {\n this._onlineComponentProvider = OnlineComponentProvider.provider;\n this._offlineComponentProvider = {\n build: (onlineComponents: OnlineComponentProvider) =>\n new MultiTabOfflineComponentProvider(\n onlineComponents,\n settings?.cacheSizeBytes\n )\n };\n }\n}\n\n/**\n * A union of all available tab managers.\n */\nexport type PersistentTabManager =\n | PersistentSingleTabManager\n | PersistentMultipleTabManager;\n\n/**\n * Type to configure an `PersistentSingleTabManager` instance.\n */\nexport type PersistentSingleTabManagerSettings = {\n /**\n * Whether to force-enable persistent (IndexedDB) cache for the client. This\n * cannot be used with multi-tab synchronization and is primarily intended for\n * use with Web Workers. Setting this to `true` will enable IndexedDB, but cause\n * other tabs using IndexedDB cache to fail.\n */\n forceOwnership?: boolean;\n};\n/**\n * Creates an instance of `PersistentSingleTabManager`.\n *\n * @param settings - Configures the created tab manager.\n */\nexport function persistentSingleTabManager(\n settings: PersistentSingleTabManagerSettings | undefined\n): PersistentSingleTabManager {\n return new SingleTabManagerImpl(settings?.forceOwnership);\n}\n\n/**\n * Creates an instance of `PersistentMultipleTabManager`.\n */\nexport function persistentMultipleTabManager(): PersistentMultipleTabManager {\n return new MultiTabManagerImpl();\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { BundleLoader } from '../core/bundle_impl';\nimport { createBundleReaderSync } from '../core/firestore_client';\nimport { newQueryComparator } from '../core/query';\nimport { ChangeType, ViewSnapshot } from '../core/view_snapshot';\nimport { FieldPath } from '../lite-api/field_path';\nimport {\n DocumentData,\n PartialWithFieldValue,\n Query,\n queryEqual,\n SetOptions,\n WithFieldValue\n} from '../lite-api/reference';\nimport { LiteUserDataWriter } from '../lite-api/reference_impl';\nimport {\n DocumentSnapshot as LiteDocumentSnapshot,\n FirestoreDataConverter as LiteFirestoreDataConverter\n} from '../lite-api/snapshot';\nimport {\n fieldPathFromArgument,\n UntypedFirestoreDataConverter\n} from '../lite-api/user_data_reader';\nimport { AbstractUserDataWriter } from '../lite-api/user_data_writer';\nimport { fromBundledQuery } from '../local/local_serializer';\nimport { documentKeySet } from '../model/collections';\nimport { Document } from '../model/document';\nimport { DocumentKey } from '../model/document_key';\nimport { DocumentSet } from '../model/document_set';\nimport { ResourcePath } from '../model/path';\nimport { newSerializer } from '../platform/serializer';\nimport {\n buildQuerySnapshotJsonBundle,\n buildDocumentSnapshotJsonBundle\n} from '../platform/snapshot_to_json';\nimport { fromDocument } from '../remote/serializer';\nimport { debugAssert, fail } from '../util/assert';\nimport { Code, FirestoreError } from '../util/error';\n// API extractor fails importing 'property' unless we also explicitly import 'Property'.\n// eslint-disable-next-line @typescript-eslint/no-unused-vars, unused-imports/no-unused-imports-ts\nimport { Property, property, validateJSON } from '../util/json_validation';\nimport { AutoId } from '../util/misc';\n\nimport { Firestore } from './database';\nimport { SnapshotListenOptions } from './reference_impl';\n\nconst NOT_SUPPORTED = 'NOT SUPPORTED';\n\n/**\n * Converter used by `withConverter()` to transform user objects of type\n * `AppModelType` into Firestore data of type `DbModelType`.\n *\n * Using the converter allows you to specify generic type arguments when\n * storing and retrieving objects from Firestore.\n *\n * In this context, an \"AppModel\" is a class that is used in an application to\n * package together related information and functionality. Such a class could,\n * for example, have properties with complex, nested data types, properties used\n * for memoization, properties of types not supported by Firestore (such as\n * `symbol` and `bigint`), and helper functions that perform compound\n * operations. Such classes are not suitable and/or possible to store into a\n * Firestore database. Instead, instances of such classes need to be converted\n * to \"plain old JavaScript objects\" (POJOs) with exclusively primitive\n * properties, potentially nested inside other POJOs or arrays of POJOs. In this\n * context, this type is referred to as the \"DbModel\" and would be an object\n * suitable for persisting into Firestore. For convenience, applications can\n * implement `FirestoreDataConverter` and register the converter with Firestore\n * objects, such as `DocumentReference` or `Query`, to automatically convert\n * `AppModel` to `DbModel` when storing into Firestore, and convert `DbModel`\n * to `AppModel` when retrieving from Firestore.\n *\n * @example\n *\n * Simple Example\n *\n * ```typescript\n * const numberConverter = {\n * toFirestore(value: WithFieldValue<number>) {\n * return { value };\n * },\n * fromFirestore(snapshot: QueryDocumentSnapshot, options: SnapshotOptions) {\n * return snapshot.data(options).value as number;\n * }\n * };\n *\n * async function simpleDemo(db: Firestore): Promise<void> {\n * const documentRef = doc(db, 'values/value123').withConverter(numberConverter);\n *\n * // converters are used with `setDoc`, `addDoc`, and `getDoc`\n * await setDoc(documentRef, 42);\n * const snapshot1 = await getDoc(documentRef);\n * assertEqual(snapshot1.data(), 42);\n *\n * // converters are not used when writing data with `updateDoc`\n * await updateDoc(documentRef, { value: 999 });\n * const snapshot2 = await getDoc(documentRef);\n * assertEqual(snapshot2.data(), 999);\n * }\n * ```\n *\n * Advanced Example\n *\n * ```typescript\n * // The Post class is a model that is used by our application.\n * // This class may have properties and methods that are specific\n * // to our application execution, which do not need to be persisted\n * // to Firestore.\n * class Post {\n * constructor(\n * readonly title: string,\n * readonly author: string,\n * readonly lastUpdatedMillis: number\n * ) {}\n * toString(): string {\n * return `${this.title} by ${this.author}`;\n * }\n * }\n *\n * // The PostDbModel represents how we want our posts to be stored\n * // in Firestore. This DbModel has different properties (`ttl`,\n * // `aut`, and `lut`) from the Post class we use in our application.\n * interface PostDbModel {\n * ttl: string;\n * aut: { firstName: string; lastName: string };\n * lut: Timestamp;\n * }\n *\n * // The `PostConverter` implements `FirestoreDataConverter` and specifies\n * // how the Firestore SDK can convert `Post` objects to `PostDbModel`\n * // objects and vice versa.\n * class PostConverter implements FirestoreDataConverter<Post, PostDbModel> {\n * toFirestore(post: WithFieldValue<Post>): WithFieldValue<PostDbModel> {\n * return {\n * ttl: post.title,\n * aut: this._autFromAuthor(post.author),\n * lut: this._lutFromLastUpdatedMillis(post.lastUpdatedMillis)\n * };\n * }\n *\n * fromFirestore(snapshot: QueryDocumentSnapshot, options: SnapshotOptions): Post {\n * const data = snapshot.data(options) as PostDbModel;\n * const author = `${data.aut.firstName} ${data.aut.lastName}`;\n * return new Post(data.ttl, author, data.lut.toMillis());\n * }\n *\n * _autFromAuthor(\n * author: string | FieldValue\n * ): { firstName: string; lastName: string } | FieldValue {\n * if (typeof author !== 'string') {\n * // `author` is a FieldValue, so just return it.\n * return author;\n * }\n * const [firstName, lastName] = author.split(' ');\n * return {firstName, lastName};\n * }\n *\n * _lutFromLastUpdatedMillis(\n * lastUpdatedMillis: number | FieldValue\n * ): Timestamp | FieldValue {\n * if (typeof lastUpdatedMillis !== 'number') {\n * // `lastUpdatedMillis` must be a FieldValue, so just return it.\n * return lastUpdatedMillis;\n * }\n * return Timestamp.fromMillis(lastUpdatedMillis);\n * }\n * }\n *\n * async function advancedDemo(db: Firestore): Promise<void> {\n * // Create a `DocumentReference` with a `FirestoreDataConverter`.\n * const documentRef = doc(db, 'posts/post123').withConverter(new PostConverter());\n *\n * // The `data` argument specified to `setDoc()` is type checked by the\n * // TypeScript compiler to be compatible with `Post`. Since the `data`\n * // argument is typed as `WithFieldValue<Post>` rather than just `Post`,\n * // this allows properties of the `data` argument to also be special\n * // Firestore values that perform server-side mutations, such as\n * // `arrayRemove()`, `deleteField()`, and `serverTimestamp()`.\n * await setDoc(documentRef, {\n * title: 'My Life',\n * author: 'Foo Bar',\n * lastUpdatedMillis: serverTimestamp()\n * });\n *\n * // The TypeScript compiler will fail to compile if the `data` argument to\n * // `setDoc()` is _not_ compatible with `WithFieldValue<Post>`. This\n * // type checking prevents the caller from specifying objects with incorrect\n * // properties or property values.\n * // @ts-expect-error \"Argument of type { ttl: string; } is not assignable\n * // to parameter of type WithFieldValue<Post>\"\n * await setDoc(documentRef, { ttl: 'The Title' });\n *\n * // When retrieving a document with `getDoc()` the `DocumentSnapshot`\n * // object's `data()` method returns a `Post`, rather than a generic object,\n * // which would have been returned if the `DocumentReference` did _not_ have a\n * // `FirestoreDataConverter` attached to it.\n * const snapshot1: DocumentSnapshot<Post> = await getDoc(documentRef);\n * const post1: Post = snapshot1.data()!;\n * if (post1) {\n * assertEqual(post1.title, 'My Life');\n * assertEqual(post1.author, 'Foo Bar');\n * }\n *\n * // The `data` argument specified to `updateDoc()` is type checked by the\n * // TypeScript compiler to be compatible with `PostDbModel`. Note that\n * // unlike `setDoc()`, whose `data` argument must be compatible with `Post`,\n * // the `data` argument to `updateDoc()` must be compatible with\n * // `PostDbModel`. Similar to `setDoc()`, since the `data` argument is typed\n * // as `WithFieldValue<PostDbModel>` rather than just `PostDbModel`, this\n * // allows properties of the `data` argument to also be those special\n * // Firestore values, like `arrayRemove()`, `deleteField()`, and\n * // `serverTimestamp()`.\n * await updateDoc(documentRef, {\n * 'aut.firstName': 'NewFirstName',\n * lut: serverTimestamp()\n * });\n *\n * // The TypeScript compiler will fail to compile if the `data` argument to\n * // `updateDoc()` is _not_ compatible with `WithFieldValue<PostDbModel>`.\n * // This type checking prevents the caller from specifying objects with\n * // incorrect properties or property values.\n * // @ts-expect-error \"Argument of type { title: string; } is not assignable\n * // to parameter of type WithFieldValue<PostDbModel>\"\n * await updateDoc(documentRef, { title: 'New Title' });\n * const snapshot2: DocumentSnapshot<Post> = await getDoc(documentRef);\n * const post2: Post = snapshot2.data()!;\n * if (post2) {\n * assertEqual(post2.title, 'My Life');\n * assertEqual(post2.author, 'NewFirstName Bar');\n * }\n * }\n * ```\n */\nexport interface FirestoreDataConverter<\n AppModelType,\n DbModelType extends DocumentData = DocumentData\n> extends LiteFirestoreDataConverter<AppModelType, DbModelType> {\n /**\n * Called by the Firestore SDK to convert a custom model object of type\n * `AppModelType` into a plain JavaScript object (suitable for writing\n * directly to the Firestore database) of type `DbModelType`. To use `set()`\n * with `merge` and `mergeFields`, `toFirestore()` must be defined with\n * `PartialWithFieldValue<AppModelType>`.\n *\n * The `WithFieldValue<T>` type extends `T` to also allow FieldValues such as\n * {@link (deleteField:1)} to be used as property values.\n */\n toFirestore(\n modelObject: WithFieldValue<AppModelType>\n ): WithFieldValue<DbModelType>;\n\n /**\n * Called by the Firestore SDK to convert a custom model object of type\n * `AppModelType` into a plain JavaScript object (suitable for writing\n * directly to the Firestore database) of type `DbModelType`. Used with\n * {@link (setDoc:1)}, {@link (WriteBatch.set:1)} and\n * {@link (Transaction.set:1)} with `merge:true` or `mergeFields`.\n *\n * The `PartialWithFieldValue<T>` type extends `Partial<T>` to allow\n * FieldValues such as {@link (arrayUnion:1)} to be used as property values.\n * It also supports nested `Partial` by allowing nested fields to be\n * omitted.\n */\n toFirestore(\n modelObject: PartialWithFieldValue<AppModelType>,\n options: SetOptions\n ): PartialWithFieldValue<DbModelType>;\n\n /**\n * Called by the Firestore SDK to convert Firestore data into an object of\n * type `AppModelType`. You can access your data by calling:\n * `snapshot.data(options)`.\n *\n * Generally, the data returned from `snapshot.data()` can be cast to\n * `DbModelType`; however, this is not guaranteed because Firestore does not\n * enforce a schema on the database. For example, writes from a previous\n * version of the application or writes from another client that did not use a\n * type converter could have written data with different properties and/or\n * property types. The implementation will need to choose whether to\n * gracefully recover from non-conforming data or throw an error.\n *\n * To override this method, see {@link (FirestoreDataConverter.fromFirestore:1)}.\n *\n * @param snapshot - A `QueryDocumentSnapshot` containing your data and metadata.\n * @param options - The `SnapshotOptions` from the initial call to `data()`.\n */\n fromFirestore(\n snapshot: QueryDocumentSnapshot<DocumentData, DocumentData>,\n options?: SnapshotOptions\n ): AppModelType;\n}\n\n/**\n * Options that configure how data is retrieved from a `DocumentSnapshot` (for\n * example the desired behavior for server timestamps that have not yet been set\n * to their final value).\n */\nexport interface SnapshotOptions {\n /**\n * If set, controls the return value for server timestamps that have not yet\n * been set to their final value.\n *\n * By specifying 'estimate', pending server timestamps return an estimate\n * based on the local clock. This estimate will differ from the final value\n * and cause these values to change once the server result becomes available.\n *\n * By specifying 'previous', pending timestamps will be ignored and return\n * their previous value instead.\n *\n * If omitted or set to 'none', `null` will be returned by default until the\n * server value becomes available.\n */\n readonly serverTimestamps?: 'estimate' | 'previous' | 'none';\n}\n\n/**\n * Metadata about a snapshot, describing the state of the snapshot.\n */\nexport class SnapshotMetadata {\n /**\n * True if the snapshot contains the result of local writes (for example\n * `set()` or `update()` calls) that have not yet been committed to the\n * backend. If your listener has opted into metadata updates (via\n * `SnapshotListenOptions`) you will receive another snapshot with\n * `hasPendingWrites` equal to false once the writes have been committed to\n * the backend.\n */\n readonly hasPendingWrites: boolean;\n\n /**\n * True if the snapshot was created from cached data rather than guaranteed\n * up-to-date server data. If your listener has opted into metadata updates\n * (via `SnapshotListenOptions`) you will receive another snapshot with\n * `fromCache` set to false once the client has received up-to-date data from\n * the backend.\n */\n readonly fromCache: boolean;\n\n /** @hideconstructor */\n constructor(hasPendingWrites: boolean, fromCache: boolean) {\n this.hasPendingWrites = hasPendingWrites;\n this.fromCache = fromCache;\n }\n\n /**\n * Returns true if this `SnapshotMetadata` is equal to the provided one.\n *\n * @param other - The `SnapshotMetadata` to compare against.\n * @returns true if this `SnapshotMetadata` is equal to the provided one.\n */\n isEqual(other: SnapshotMetadata): boolean {\n return (\n this.hasPendingWrites === other.hasPendingWrites &&\n this.fromCache === other.fromCache\n );\n }\n}\n\n/**\n * The type of a `DocumentChange` may be 'added', 'removed', or 'modified'.\n */\nexport type DocumentChangeType = 'added' | 'removed' | 'modified';\n\n/**\n * A `DocumentChange` represents a change to the documents matching a query.\n * It contains the document affected and the type of change that occurred.\n */\nexport interface DocumentChange<\n AppModelType = DocumentData,\n DbModelType extends DocumentData = DocumentData\n> {\n /** The type of change ('added', 'modified', or 'removed'). */\n readonly type: DocumentChangeType;\n\n /** The document affected by this change. */\n readonly doc: QueryDocumentSnapshot<AppModelType, DbModelType>;\n\n /**\n * The index of the changed document in the result set immediately prior to\n * this `DocumentChange` (i.e. supposing that all prior `DocumentChange` objects\n * have been applied). Is `-1` for 'added' events.\n */\n readonly oldIndex: number;\n\n /**\n * The index of the changed document in the result set immediately after\n * this `DocumentChange` (i.e. supposing that all prior `DocumentChange`\n * objects and the current `DocumentChange` object have been applied).\n * Is -1 for 'removed' events.\n */\n readonly newIndex: number;\n}\n\n/**\n * A `DocumentSnapshot` contains data read from a document in your Firestore\n * database. The data can be extracted with `.data()` or `.get(<field>)` to\n * get a specific field.\n *\n * For a `DocumentSnapshot` that points to a non-existing document, any data\n * access will return 'undefined'. You can use the `exists()` method to\n * explicitly verify a document's existence.\n */\nexport class DocumentSnapshot<\n AppModelType = DocumentData,\n DbModelType extends DocumentData = DocumentData\n> extends LiteDocumentSnapshot<AppModelType, DbModelType> {\n private readonly _firestoreImpl: Firestore;\n\n /**\n * Metadata about the `DocumentSnapshot`, including information about its\n * source and local modifications.\n */\n readonly metadata: SnapshotMetadata;\n\n /** @hideconstructor protected */\n constructor(\n readonly _firestore: Firestore,\n userDataWriter: AbstractUserDataWriter,\n key: DocumentKey,\n document: Document | null,\n metadata: SnapshotMetadata,\n converter: UntypedFirestoreDataConverter<AppModelType, DbModelType> | null\n ) {\n super(_firestore, userDataWriter, key, document, converter);\n this._firestoreImpl = _firestore;\n this.metadata = metadata;\n }\n\n /**\n * Returns whether or not the data exists. True if the document exists.\n */\n exists(): this is QueryDocumentSnapshot<AppModelType, DbModelType> {\n return super.exists();\n }\n\n /**\n * Retrieves all fields in the document as an `Object`. Returns `undefined` if\n * the document doesn't exist.\n *\n * By default, `serverTimestamp()` values that have not yet been\n * set to their final value will be returned as `null`. You can override\n * this by passing an options object.\n *\n * @param options - An options object to configure how data is retrieved from\n * the snapshot (for example the desired behavior for server timestamps that\n * have not yet been set to their final value).\n * @returns An `Object` containing all fields in the document or `undefined` if\n * the document doesn't exist.\n */\n data(options: SnapshotOptions = {}): AppModelType | undefined {\n if (!this._document) {\n return undefined;\n } else if (this._converter) {\n // We only want to use the converter and create a new DocumentSnapshot\n // if a converter has been provided.\n const snapshot = new QueryDocumentSnapshot(\n this._firestore,\n this._userDataWriter,\n this._key,\n this._document,\n this.metadata,\n /* converter= */ null\n );\n return this._converter.fromFirestore(snapshot, options);\n } else {\n return this._userDataWriter.convertValue(\n this._document.data.value,\n options.serverTimestamps\n ) as AppModelType;\n }\n }\n\n /**\n * Retrieves the field specified by `fieldPath`. Returns `undefined` if the\n * document or field doesn't exist.\n *\n * By default, a `serverTimestamp()` that has not yet been set to\n * its final value will be returned as `null`. You can override this by\n * passing an options object.\n *\n * @param fieldPath - The path (for example 'foo' or 'foo.bar') to a specific\n * field.\n * @param options - An options object to configure how the field is retrieved\n * from the snapshot (for example the desired behavior for server timestamps\n * that have not yet been set to their final value).\n * @returns The data at the specified field location or undefined if no such\n * field exists in the document.\n */\n // We are using `any` here to avoid an explicit cast by our users.\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n get(fieldPath: string | FieldPath, options: SnapshotOptions = {}): any {\n if (this._document) {\n const value = this._document.data.field(\n fieldPathFromArgument('DocumentSnapshot.get', fieldPath)\n );\n if (value !== null) {\n return this._userDataWriter.convertValue(\n value,\n options.serverTimestamps\n );\n }\n }\n return undefined;\n }\n\n static _jsonSchemaVersion: string = 'firestore/documentSnapshot/1.0';\n static _jsonSchema = {\n type: property('string', DocumentSnapshot._jsonSchemaVersion),\n bundleSource: property('string', 'DocumentSnapshot'),\n bundleName: property('string'),\n bundle: property('string')\n };\n\n /**\n * Returns a JSON-serializable representation of this `DocumentSnapshot` instance.\n *\n * @returns a JSON representation of this object. Throws a {@link FirestoreError} if this\n * `DocumentSnapshot` has pending writes.\n */\n toJSON(): object {\n if (this.metadata.hasPendingWrites) {\n throw new FirestoreError(\n Code.FAILED_PRECONDITION,\n 'DocumentSnapshot.toJSON() attempted to serialize a document with pending writes. ' +\n 'Await waitForPendingWrites() before invoking toJSON().'\n );\n }\n const document = this._document;\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const result: any = {};\n result['type'] = DocumentSnapshot._jsonSchemaVersion;\n result['bundle'] = '';\n result['bundleSource'] = 'DocumentSnapshot';\n result['bundleName'] = this._key.toString();\n\n if (\n !document ||\n !document.isValidDocument() ||\n !document.isFoundDocument()\n ) {\n return result;\n }\n const documentData = this._userDataWriter.convertObjectMap(\n document.data.value.mapValue.fields,\n 'previous'\n );\n result['bundle'] = buildDocumentSnapshotJsonBundle(\n this._firestore,\n document,\n documentData,\n this.ref.path\n );\n return result;\n }\n}\n\n/**\n * Builds a `DocumentSnapshot` instance from a JSON object created by\n * {@link DocumentSnapshot.toJSON}.\n *\n * @param firestore - The {@link Firestore} instance the snapshot should be loaded for.\n * @param json - a JSON object represention of a `DocumentSnapshot` instance.\n * @returns an instance of {@link DocumentSnapshot} if the JSON object could be\n * parsed. Throws a {@link FirestoreError} if an error occurs.\n */\nexport function documentSnapshotFromJSON(\n db: Firestore,\n json: object\n): DocumentSnapshot;\n/**\n * Builds a `DocumentSnapshot` instance from a JSON object created by\n * {@link DocumentSnapshot.toJSON}.\n *\n * @param firestore - The {@link Firestore} instance the snapshot should be loaded for.\n * @param json - a JSON object represention of a `DocumentSnapshot` instance.\n * @param converter - Converts objects to and from Firestore.\n * @returns an instance of {@link DocumentSnapshot} if the JSON object could be\n * parsed. Throws a {@link FirestoreError} if an error occurs.\n */\nexport function documentSnapshotFromJSON<\n AppModelType,\n DbModelType extends DocumentData = DocumentData\n>(\n db: Firestore,\n json: object,\n converter: FirestoreDataConverter<AppModelType, DbModelType>\n): DocumentSnapshot<AppModelType, DbModelType>;\nexport function documentSnapshotFromJSON<\n AppModelType,\n DbModelType extends DocumentData = DocumentData\n>(\n db: Firestore,\n json: object,\n converter?: FirestoreDataConverter<AppModelType, DbModelType>\n): DocumentSnapshot<AppModelType, DbModelType> {\n if (validateJSON(json, DocumentSnapshot._jsonSchema)) {\n if (json.bundle === NOT_SUPPORTED) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'The provided JSON object was created in a client environment, which is not supported.'\n );\n }\n // Parse the bundle data.\n const serializer = newSerializer(db._databaseId);\n const bundleReader = createBundleReaderSync(json.bundle, serializer);\n const elements = bundleReader.getElements();\n const bundleLoader: BundleLoader = new BundleLoader(\n bundleReader.getMetadata(),\n serializer\n );\n for (const element of elements) {\n bundleLoader.addSizedElement(element);\n }\n\n // Ensure that we have the correct number of documents in the bundle.\n const bundledDocuments = bundleLoader.documents;\n if (bundledDocuments.length !== 1) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Expected bundle data to contain 1 document, but it contains ${bundledDocuments.length} documents.`\n );\n }\n\n // Build out the internal document data.\n const document = fromDocument(serializer, bundledDocuments[0].document!);\n const documentKey = new DocumentKey(\n ResourcePath.fromString(json.bundleName)\n );\n\n // Return the external facing DocumentSnapshot.\n return new DocumentSnapshot(\n db,\n new LiteUserDataWriter(db),\n documentKey,\n document,\n new SnapshotMetadata(\n /* hasPendingWrites= */ false,\n /* fromCache= */ false\n ),\n converter ? converter : null\n );\n }\n throw new FirestoreError(\n Code.INTERNAL,\n 'Unexpected error creating DocumentSnapshot from JSON.'\n );\n}\n\n/**\n * A `QueryDocumentSnapshot` contains data read from a document in your\n * Firestore database as part of a query. The document is guaranteed to exist\n * and its data can be extracted with `.data()` or `.get(<field>)` to get a\n * specific field.\n *\n * A `QueryDocumentSnapshot` offers the same API surface as a\n * `DocumentSnapshot`. Since query results contain only existing documents, the\n * `exists` property will always be true and `data()` will never return\n * 'undefined'.\n */\nexport class QueryDocumentSnapshot<\n AppModelType = DocumentData,\n DbModelType extends DocumentData = DocumentData\n> extends DocumentSnapshot<AppModelType, DbModelType> {\n /**\n * Retrieves all fields in the document as an `Object`.\n *\n * By default, `serverTimestamp()` values that have not yet been\n * set to their final value will be returned as `null`. You can override\n * this by passing an options object.\n *\n * @override\n * @param options - An options object to configure how data is retrieved from\n * the snapshot (for example the desired behavior for server timestamps that\n * have not yet been set to their final value).\n * @returns An `Object` containing all fields in the document.\n */\n data(options: SnapshotOptions = {}): AppModelType {\n return super.data(options) as AppModelType;\n }\n}\n\n/**\n * A `QuerySnapshot` contains zero or more `DocumentSnapshot` objects\n * representing the results of a query. The documents can be accessed as an\n * array via the `docs` property or enumerated using the `forEach` method. The\n * number of documents can be determined via the `empty` and `size`\n * properties.\n */\nexport class QuerySnapshot<\n AppModelType = DocumentData,\n DbModelType extends DocumentData = DocumentData\n> {\n /**\n * Metadata about this snapshot, concerning its source and if it has local\n * modifications.\n */\n readonly metadata: SnapshotMetadata;\n\n /**\n * The query on which you called `get` or `onSnapshot` in order to get this\n * `QuerySnapshot`.\n */\n readonly query: Query<AppModelType, DbModelType>;\n\n private _cachedChanges?: Array<DocumentChange<AppModelType, DbModelType>>;\n private _cachedChangesIncludeMetadataChanges?: boolean;\n\n /** @hideconstructor */\n constructor(\n readonly _firestore: Firestore,\n readonly _userDataWriter: AbstractUserDataWriter,\n query: Query<AppModelType, DbModelType>,\n readonly _snapshot: ViewSnapshot\n ) {\n this.metadata = new SnapshotMetadata(\n _snapshot.hasPendingWrites,\n _snapshot.fromCache\n );\n this.query = query;\n }\n\n /** An array of all the documents in the `QuerySnapshot`. */\n get docs(): Array<QueryDocumentSnapshot<AppModelType, DbModelType>> {\n const result: Array<QueryDocumentSnapshot<AppModelType, DbModelType>> = [];\n this.forEach(doc => result.push(doc));\n return result;\n }\n\n /** The number of documents in the `QuerySnapshot`. */\n get size(): number {\n return this._snapshot.docs.size;\n }\n\n /** True if there are no documents in the `QuerySnapshot`. */\n get empty(): boolean {\n return this.size === 0;\n }\n\n /**\n * Enumerates all of the documents in the `QuerySnapshot`.\n *\n * @param callback - A callback to be called with a `QueryDocumentSnapshot` for\n * each document in the snapshot.\n * @param thisArg - The `this` binding for the callback.\n */\n forEach(\n callback: (\n result: QueryDocumentSnapshot<AppModelType, DbModelType>\n ) => void,\n thisArg?: unknown\n ): void {\n this._snapshot.docs.forEach(doc => {\n callback.call(\n thisArg,\n new QueryDocumentSnapshot<AppModelType, DbModelType>(\n this._firestore,\n this._userDataWriter,\n doc.key,\n doc,\n new SnapshotMetadata(\n this._snapshot.mutatedKeys.has(doc.key),\n this._snapshot.fromCache\n ),\n this.query.converter\n )\n );\n });\n }\n\n /**\n * Returns an array of the documents changes since the last snapshot. If this\n * is the first snapshot, all documents will be in the list as 'added'\n * changes.\n *\n * @param options - `SnapshotListenOptions` that control whether metadata-only\n * changes (i.e. only `DocumentSnapshot.metadata` changed) should trigger\n * snapshot events.\n */\n docChanges(\n options: SnapshotListenOptions = {}\n ): Array<DocumentChange<AppModelType, DbModelType>> {\n const includeMetadataChanges = !!options.includeMetadataChanges;\n\n if (includeMetadataChanges && this._snapshot.excludesMetadataChanges) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'To include metadata changes with your document changes, you must ' +\n 'also pass { includeMetadataChanges:true } to onSnapshot().'\n );\n }\n\n if (\n !this._cachedChanges ||\n this._cachedChangesIncludeMetadataChanges !== includeMetadataChanges\n ) {\n this._cachedChanges = changesFromSnapshot(this, includeMetadataChanges);\n this._cachedChangesIncludeMetadataChanges = includeMetadataChanges;\n }\n\n return this._cachedChanges;\n }\n\n static _jsonSchemaVersion: string = 'firestore/querySnapshot/1.0';\n static _jsonSchema = {\n type: property('string', QuerySnapshot._jsonSchemaVersion),\n bundleSource: property('string', 'QuerySnapshot'),\n bundleName: property('string'),\n bundle: property('string')\n };\n\n /**\n * Returns a JSON-serializable representation of this `QuerySnapshot` instance.\n *\n * @returns a JSON representation of this object. Throws a {@link FirestoreError} if this\n * `QuerySnapshot` has pending writes.\n */\n toJSON(): object {\n if (this.metadata.hasPendingWrites) {\n throw new FirestoreError(\n Code.FAILED_PRECONDITION,\n 'QuerySnapshot.toJSON() attempted to serialize a document with pending writes. ' +\n 'Await waitForPendingWrites() before invoking toJSON().'\n );\n }\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const result: any = {};\n result['type'] = QuerySnapshot._jsonSchemaVersion;\n result['bundleSource'] = 'QuerySnapshot';\n result['bundleName'] = AutoId.newId();\n\n const databaseId = this._firestore._databaseId.database;\n const projectId = this._firestore._databaseId.projectId;\n const parent = `projects/${projectId}/databases/${databaseId}/documents`;\n const documents: Document[] = [];\n const documentData: DocumentData[] = [];\n const paths: string[] = [];\n\n this.docs.forEach(doc => {\n if (doc._document === null) {\n return;\n }\n documents.push(doc._document);\n documentData.push(\n this._userDataWriter.convertObjectMap(\n doc._document.data.value.mapValue.fields,\n 'previous'\n )\n );\n paths.push(doc.ref.path);\n });\n result['bundle'] = buildQuerySnapshotJsonBundle(\n this._firestore,\n this.query._query,\n result['bundleName'],\n parent,\n paths,\n documents,\n documentData\n );\n return result;\n }\n}\n\n/**\n * Builds a `QuerySnapshot` instance from a JSON object created by\n * {@link QuerySnapshot.toJSON}.\n *\n * @param firestore - The {@link Firestore} instance the snapshot should be loaded for.\n * @param json - a JSON object represention of a `QuerySnapshot` instance.\n * @returns an instance of {@link QuerySnapshot} if the JSON object could be\n * parsed. Throws a {@link FirestoreError} if an error occurs.\n */\nexport function querySnapshotFromJSON(\n db: Firestore,\n json: object\n): QuerySnapshot;\n/**\n * Builds a `QuerySnapshot` instance from a JSON object created by\n * {@link QuerySnapshot.toJSON}.\n *\n * @param firestore - The {@link Firestore} instance the snapshot should be loaded for.\n * @param json - a JSON object represention of a `QuerySnapshot` instance.\n * @param converter - Converts objects to and from Firestore.\n * @returns an instance of {@link QuerySnapshot} if the JSON object could be\n * parsed. Throws a {@link FirestoreError} if an error occurs.\n */\nexport function querySnapshotFromJSON<\n AppModelType,\n DbModelType extends DocumentData = DocumentData\n>(\n db: Firestore,\n json: object,\n converter: FirestoreDataConverter<AppModelType, DbModelType>\n): QuerySnapshot<AppModelType, DbModelType>;\nexport function querySnapshotFromJSON<\n AppModelType,\n DbModelType extends DocumentData\n>(\n db: Firestore,\n json: object,\n converter?: FirestoreDataConverter<AppModelType, DbModelType>\n): QuerySnapshot<AppModelType, DbModelType> {\n if (validateJSON(json, QuerySnapshot._jsonSchema)) {\n if (json.bundle === NOT_SUPPORTED) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'The provided JSON object was created in a client environment, which is not supported.'\n );\n }\n // Parse the bundle data.\n const serializer = newSerializer(db._databaseId);\n const bundleReader = createBundleReaderSync(json.bundle, serializer);\n const elements = bundleReader.getElements();\n const bundleLoader: BundleLoader = new BundleLoader(\n bundleReader.getMetadata(),\n serializer\n );\n for (const element of elements) {\n bundleLoader.addSizedElement(element);\n }\n\n if (bundleLoader.queries.length !== 1) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `Snapshot data expected 1 query but found ${bundleLoader.queries.length} queries.`\n );\n }\n\n // Create an internal Query object from the named query in the bundle.\n const query = fromBundledQuery(bundleLoader.queries[0].bundledQuery!);\n\n // Construct the arrays of document data for the query.\n const bundledDocuments = bundleLoader.documents;\n let documentSet = new DocumentSet();\n bundledDocuments.map(bundledDocument => {\n const document = fromDocument(serializer, bundledDocument.document!);\n documentSet = documentSet.add(document);\n });\n // Create a view snapshot of the query and documents.\n const viewSnapshot = ViewSnapshot.fromInitialDocuments(\n query,\n documentSet,\n documentKeySet() /* Zero mutated keys signifies no pending writes. */,\n /* fromCache= */ false,\n /* hasCachedResults= */ false\n );\n\n // Create an external Query object, required to construct the QuerySnapshot.\n const externalQuery = new Query<AppModelType, DbModelType>(\n db,\n converter ? converter : null,\n query\n );\n\n // Return a new QuerySnapshot with all of the collected data.\n return new QuerySnapshot<AppModelType, DbModelType>(\n db,\n new LiteUserDataWriter(db),\n externalQuery,\n viewSnapshot\n );\n }\n throw new FirestoreError(\n Code.INTERNAL,\n 'Unexpected error creating QuerySnapshot from JSON.'\n );\n}\n\n/** Calculates the array of `DocumentChange`s for a given `ViewSnapshot`. */\nexport function changesFromSnapshot<\n AppModelType,\n DbModelType extends DocumentData\n>(\n querySnapshot: QuerySnapshot<AppModelType, DbModelType>,\n includeMetadataChanges: boolean\n): Array<DocumentChange<AppModelType, DbModelType>> {\n if (querySnapshot._snapshot.oldDocs.isEmpty()) {\n // Special case the first snapshot because index calculation is easy and\n // fast\n let lastDoc: Document;\n let index = 0;\n return querySnapshot._snapshot.docChanges.map(change => {\n debugAssert(\n change.type === ChangeType.Added,\n 'Invalid event type for first snapshot'\n );\n debugAssert(\n !lastDoc ||\n newQueryComparator(querySnapshot._snapshot.query)(\n lastDoc,\n change.doc\n ) < 0,\n 'Got added events in wrong order'\n );\n const doc = new QueryDocumentSnapshot<AppModelType, DbModelType>(\n querySnapshot._firestore,\n querySnapshot._userDataWriter,\n change.doc.key,\n change.doc,\n new SnapshotMetadata(\n querySnapshot._snapshot.mutatedKeys.has(change.doc.key),\n querySnapshot._snapshot.fromCache\n ),\n querySnapshot.query.converter\n );\n lastDoc = change.doc;\n return {\n type: 'added' as DocumentChangeType,\n doc,\n oldIndex: -1,\n newIndex: index++\n };\n });\n } else {\n // A `DocumentSet` that is updated incrementally as changes are applied to use\n // to lookup the index of a document.\n let indexTracker = querySnapshot._snapshot.oldDocs;\n return querySnapshot._snapshot.docChanges\n .filter(\n change => includeMetadataChanges || change.type !== ChangeType.Metadata\n )\n .map(change => {\n const doc = new QueryDocumentSnapshot<AppModelType, DbModelType>(\n querySnapshot._firestore,\n querySnapshot._userDataWriter,\n change.doc.key,\n change.doc,\n new SnapshotMetadata(\n querySnapshot._snapshot.mutatedKeys.has(change.doc.key),\n querySnapshot._snapshot.fromCache\n ),\n querySnapshot.query.converter\n );\n let oldIndex = -1;\n let newIndex = -1;\n if (change.type !== ChangeType.Added) {\n oldIndex = indexTracker.indexOf(change.doc.key);\n debugAssert(oldIndex >= 0, 'Index for document not found');\n indexTracker = indexTracker.delete(change.doc.key);\n }\n if (change.type !== ChangeType.Removed) {\n indexTracker = indexTracker.add(change.doc);\n newIndex = indexTracker.indexOf(change.doc.key);\n }\n return {\n type: resultChangeType(change.type),\n doc,\n oldIndex,\n newIndex\n };\n });\n }\n}\n\nexport function resultChangeType(type: ChangeType): DocumentChangeType {\n switch (type) {\n case ChangeType.Added:\n return 'added';\n case ChangeType.Modified:\n case ChangeType.Metadata:\n return 'modified';\n case ChangeType.Removed:\n return 'removed';\n default:\n return fail(0xf03d, 'Unknown change type', { type });\n }\n}\n\n// TODO(firestoreexp): Add tests for snapshotEqual with different snapshot\n// metadata\n/**\n * Returns true if the provided snapshots are equal.\n *\n * @param left - A snapshot to compare.\n * @param right - A snapshot to compare.\n * @returns true if the snapshots are equal.\n */\nexport function snapshotEqual<AppModelType, DbModelType extends DocumentData>(\n left:\n | DocumentSnapshot<AppModelType, DbModelType>\n | QuerySnapshot<AppModelType, DbModelType>,\n right:\n | DocumentSnapshot<AppModelType, DbModelType>\n | QuerySnapshot<AppModelType, DbModelType>\n): boolean {\n if (left instanceof DocumentSnapshot && right instanceof DocumentSnapshot) {\n return (\n left._firestore === right._firestore &&\n left._key.isEqual(right._key) &&\n (left._document === null\n ? right._document === null\n : left._document.isEqual(right._document)) &&\n left._converter === right._converter\n );\n } else if (left instanceof QuerySnapshot && right instanceof QuerySnapshot) {\n return (\n left._firestore === right._firestore &&\n queryEqual(left.query, right.query) &&\n left.metadata.isEqual(right.metadata) &&\n left._snapshot.isEqual(right._snapshot)\n );\n }\n\n return false;\n}\n","/**\n * @license\n * Copyright 2025 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/** Return the Platform-specific build JSON bundle implementations. */\nimport { Firestore } from '../../api/database';\nimport { Query } from '../../core/query';\nimport { DocumentData } from '../../lite-api/reference';\nimport { Document } from '../../model/document';\n\nexport function buildDocumentSnapshotJsonBundle(\n db: Firestore,\n document: Document,\n docData: DocumentData,\n path: string\n): string {\n return 'NOT SUPPORTED';\n}\n\nexport function buildQuerySnapshotJsonBundle(\n db: Firestore,\n query: Query,\n bundleName: string,\n parent: string,\n paths: string[],\n docs: Document[],\n documentData: DocumentData[]\n): string {\n return 'NOT SUPPORTED';\n}\n","/**\n * @license\n * Copyright 2022 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 { Code, FirestoreError } from '../util/error';\n\nexport const DEFAULT_TRANSACTION_OPTIONS: TransactionOptions = {\n maxAttempts: 5\n};\n\n/**\n * Options to customize transaction behavior.\n */\nexport declare interface TransactionOptions {\n /** Maximum number of attempts to commit, after which transaction fails. Default is 5. */\n readonly maxAttempts: number;\n}\n\nexport function validateTransactionOptions(options: TransactionOptions): void {\n if (options.maxAttempts < 1) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Max attempts must be at least 1'\n );\n }\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { Compat, getModularInstance } from '@firebase/util';\n\nimport { DeleteMutation, Mutation, Precondition } from '../model/mutation';\nimport { invokeCommitRpc } from '../remote/datastore';\nimport { Code, FirestoreError } from '../util/error';\nimport { cast } from '../util/input_validation';\n\nimport { getDatastore } from './components';\nimport { Firestore } from './database';\nimport { FieldPath } from './field_path';\nimport {\n DocumentData,\n DocumentReference,\n PartialWithFieldValue,\n SetOptions,\n UpdateData,\n WithFieldValue\n} from './reference';\nimport { applyFirestoreDataConverter } from './reference_impl';\nimport {\n newUserDataReader,\n parseSetData,\n parseUpdateData,\n parseUpdateVarargs,\n UserDataReader\n} from './user_data_reader';\n\n/**\n * A write batch, used to perform multiple writes as a single atomic unit.\n *\n * A `WriteBatch` object can be acquired by calling {@link writeBatch}. It\n * provides methods for adding writes to the write batch. None of the writes\n * will be committed (or visible locally) until {@link WriteBatch.commit} is\n * called.\n */\nexport class WriteBatch {\n // This is the lite version of the WriteBatch API used in the legacy SDK. The\n // class is a close copy but takes different input types.\n\n private readonly _dataReader: UserDataReader;\n private _mutations = [] as Mutation[];\n private _committed = false;\n\n /** @hideconstructor */\n constructor(\n private readonly _firestore: Firestore,\n private readonly _commitHandler: (m: Mutation[]) => Promise<void>\n ) {\n this._dataReader = newUserDataReader(_firestore);\n }\n\n /**\n * Writes to the document referred to by the provided {@link\n * DocumentReference}. If the document does not exist yet, it will be created.\n *\n * @param documentRef - A reference to the document to be set.\n * @param data - An object of the fields and values for the document.\n * @returns This `WriteBatch` instance. Used for chaining method calls.\n */\n set<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n data: WithFieldValue<AppModelType>\n ): WriteBatch;\n /**\n * Writes to the document referred to by the provided {@link\n * DocumentReference}. If the document does not exist yet, it will be created.\n * If you provide `merge` or `mergeFields`, the provided data can be merged\n * into an existing document.\n *\n * @param documentRef - A reference to the document to be set.\n * @param data - An object of the fields and values for the document.\n * @param options - An object to configure the set behavior.\n * @throws Error - If the provided input is not a valid Firestore document.\n * @returns This `WriteBatch` instance. Used for chaining method calls.\n */\n set<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n data: PartialWithFieldValue<AppModelType>,\n options: SetOptions\n ): WriteBatch;\n set<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n data: WithFieldValue<AppModelType> | PartialWithFieldValue<AppModelType>,\n options?: SetOptions\n ): WriteBatch {\n this._verifyNotCommitted();\n const ref = validateReference(documentRef, this._firestore);\n\n const convertedValue = applyFirestoreDataConverter(\n ref.converter,\n data,\n options\n );\n const parsed = parseSetData(\n this._dataReader,\n 'WriteBatch.set',\n ref._key,\n convertedValue,\n ref.converter !== null,\n options\n );\n this._mutations.push(parsed.toMutation(ref._key, Precondition.none()));\n return this;\n }\n\n /**\n * Updates fields in the document referred to by the provided {@link\n * DocumentReference}. The update will fail if applied to a document that does\n * not exist.\n *\n * @param documentRef - A reference to the document to be updated.\n * @param data - An object containing the fields and values with which to\n * update the document. Fields can contain dots to reference nested fields\n * within the document.\n * @throws Error - If the provided input is not valid Firestore data.\n * @returns This `WriteBatch` instance. Used for chaining method calls.\n */\n update<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n data: UpdateData<DbModelType>\n ): WriteBatch;\n /**\n * Updates fields in the document referred to by this {@link\n * DocumentReference}. The update will fail if applied to a document that does\n * not exist.\n *\n * Nested fields can be update by providing dot-separated field path strings\n * or by providing `FieldPath` objects.\n *\n * @param documentRef - A reference to the document to be updated.\n * @param field - The first field to update.\n * @param value - The first value.\n * @param moreFieldsAndValues - Additional key value pairs.\n * @throws Error - If the provided input is not valid Firestore data.\n * @returns This `WriteBatch` instance. Used for chaining method calls.\n */\n update<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n field: string | FieldPath,\n value: unknown,\n ...moreFieldsAndValues: unknown[]\n ): WriteBatch;\n update<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n fieldOrUpdateData: string | FieldPath | UpdateData<DbModelType>,\n value?: unknown,\n ...moreFieldsAndValues: unknown[]\n ): WriteBatch {\n this._verifyNotCommitted();\n const ref = validateReference(documentRef, this._firestore);\n\n // For Compat types, we have to \"extract\" the underlying types before\n // performing validation.\n fieldOrUpdateData = getModularInstance(fieldOrUpdateData);\n\n let parsed;\n if (\n typeof fieldOrUpdateData === 'string' ||\n fieldOrUpdateData instanceof FieldPath\n ) {\n parsed = parseUpdateVarargs(\n this._dataReader,\n 'WriteBatch.update',\n ref._key,\n fieldOrUpdateData,\n value,\n moreFieldsAndValues\n );\n } else {\n parsed = parseUpdateData(\n this._dataReader,\n 'WriteBatch.update',\n ref._key,\n fieldOrUpdateData\n );\n }\n\n this._mutations.push(\n parsed.toMutation(ref._key, Precondition.exists(true))\n );\n return this;\n }\n\n /**\n * Deletes the document referred to by the provided {@link DocumentReference}.\n *\n * @param documentRef - A reference to the document to be deleted.\n * @returns This `WriteBatch` instance. Used for chaining method calls.\n */\n delete<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>\n ): WriteBatch {\n this._verifyNotCommitted();\n const ref = validateReference(documentRef, this._firestore);\n this._mutations = this._mutations.concat(\n new DeleteMutation(ref._key, Precondition.none())\n );\n return this;\n }\n\n /**\n * Commits all of the writes in this write batch as a single atomic unit.\n *\n * The result of these writes will only be reflected in document reads that\n * occur after the returned promise resolves. If the client is offline, the\n * write fails. If you would like to see local modifications or buffer writes\n * until the client is online, use the full Firestore SDK.\n *\n * @returns A `Promise` resolved once all of the writes in the batch have been\n * successfully written to the backend as an atomic unit (note that it won't\n * resolve while you're offline).\n */\n commit(): Promise<void> {\n this._verifyNotCommitted();\n this._committed = true;\n if (this._mutations.length > 0) {\n return this._commitHandler(this._mutations);\n }\n\n return Promise.resolve();\n }\n\n private _verifyNotCommitted(): void {\n if (this._committed) {\n throw new FirestoreError(\n Code.FAILED_PRECONDITION,\n 'A write batch can no longer be used after commit() ' +\n 'has been called.'\n );\n }\n }\n}\n\nexport function validateReference<\n AppModelType,\n DbModelType extends DocumentData\n>(\n documentRef:\n | DocumentReference<AppModelType, DbModelType>\n | Compat<DocumentReference<AppModelType, DbModelType>>,\n firestore: Firestore\n): DocumentReference<AppModelType, DbModelType> {\n documentRef = getModularInstance(documentRef);\n\n if (documentRef.firestore !== firestore) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Provided document reference is from a different Firestore instance.'\n );\n } else {\n return documentRef as DocumentReference<AppModelType, DbModelType>;\n }\n}\n\n/**\n * Creates a write batch, used for performing multiple writes as a single\n * atomic operation. The maximum number of writes allowed in a single WriteBatch\n * is 500.\n *\n * The result of these writes will only be reflected in document reads that\n * occur after the returned promise resolves. If the client is offline, the\n * write fails. If you would like to see local modifications or buffer writes\n * until the client is online, use the full Firestore SDK.\n *\n * @returns A `WriteBatch` that can be used to atomically execute multiple\n * writes.\n */\nexport function writeBatch(firestore: Firestore): WriteBatch {\n firestore = cast(firestore, Firestore);\n const datastore = getDatastore(firestore);\n return new WriteBatch(firestore, writes =>\n invokeCommitRpc(datastore, writes)\n );\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getModularInstance } from '@firebase/util';\n\nimport { Transaction as InternalTransaction } from '../core/transaction';\nimport {\n DEFAULT_TRANSACTION_OPTIONS,\n TransactionOptions as TransactionOptionsInternal,\n validateTransactionOptions\n} from '../core/transaction_options';\nimport { TransactionRunner } from '../core/transaction_runner';\nimport { fail } from '../util/assert';\nimport { newAsyncQueue } from '../util/async_queue_impl';\nimport { cast } from '../util/input_validation';\nimport { Deferred } from '../util/promise';\n\nimport { getDatastore } from './components';\nimport { Firestore } from './database';\nimport { FieldPath } from './field_path';\nimport {\n DocumentData,\n DocumentReference,\n PartialWithFieldValue,\n SetOptions,\n UpdateData,\n WithFieldValue\n} from './reference';\nimport {\n applyFirestoreDataConverter,\n LiteUserDataWriter\n} from './reference_impl';\nimport { DocumentSnapshot } from './snapshot';\nimport { TransactionOptions } from './transaction_options';\nimport {\n newUserDataReader,\n parseSetData,\n parseUpdateData,\n parseUpdateVarargs,\n UserDataReader\n} from './user_data_reader';\nimport { validateReference } from './write_batch';\n\n// TODO(mrschmidt) Consider using `BaseTransaction` as the base class in the\n// legacy SDK.\n\n/**\n * A reference to a transaction.\n *\n * The `Transaction` object passed to a transaction's `updateFunction` provides\n * the methods to read and write data within the transaction context. See\n * {@link runTransaction}.\n */\nexport class Transaction {\n // This is the tree-shakeable version of the Transaction class used in the\n // legacy SDK. The class is a close copy but takes different input and output\n // types. The firestore-exp SDK further extends this class to return its API\n // type.\n\n private readonly _dataReader: UserDataReader;\n\n /** @hideconstructor */\n constructor(\n protected readonly _firestore: Firestore,\n private readonly _transaction: InternalTransaction\n ) {\n this._dataReader = newUserDataReader(_firestore);\n }\n\n /**\n * Reads the document referenced by the provided {@link DocumentReference}.\n *\n * @param documentRef - A reference to the document to be read.\n * @returns A `DocumentSnapshot` with the read data.\n */\n get<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>\n ): Promise<DocumentSnapshot<AppModelType, DbModelType>> {\n const ref = validateReference(documentRef, this._firestore);\n const userDataWriter = new LiteUserDataWriter(this._firestore);\n return this._transaction.lookup([ref._key]).then(docs => {\n if (!docs || docs.length !== 1) {\n return fail(0x5de9, 'Mismatch in docs returned from document lookup.');\n }\n const doc = docs[0];\n if (doc.isFoundDocument()) {\n return new DocumentSnapshot<AppModelType, DbModelType>(\n this._firestore,\n userDataWriter,\n doc.key,\n doc,\n ref.converter\n );\n } else if (doc.isNoDocument()) {\n return new DocumentSnapshot<AppModelType, DbModelType>(\n this._firestore,\n userDataWriter,\n ref._key,\n null,\n ref.converter\n );\n } else {\n throw fail(\n 0x4801,\n 'BatchGetDocumentsRequest returned unexpected document',\n {\n doc\n }\n );\n }\n });\n }\n\n /**\n * Writes to the document referred to by the provided {@link\n * DocumentReference}. If the document does not exist yet, it will be created.\n *\n * @param documentRef - A reference to the document to be set.\n * @param data - An object of the fields and values for the document.\n * @throws Error - If the provided input is not a valid Firestore document.\n * @returns This `Transaction` instance. Used for chaining method calls.\n */\n set<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n data: WithFieldValue<AppModelType>\n ): this;\n /**\n * Writes to the document referred to by the provided {@link\n * DocumentReference}. If the document does not exist yet, it will be created.\n * If you provide `merge` or `mergeFields`, the provided data can be merged\n * into an existing document.\n *\n * @param documentRef - A reference to the document to be set.\n * @param data - An object of the fields and values for the document.\n * @param options - An object to configure the set behavior.\n * @throws Error - If the provided input is not a valid Firestore document.\n * @returns This `Transaction` instance. Used for chaining method calls.\n */\n set<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n data: PartialWithFieldValue<AppModelType>,\n options: SetOptions\n ): this;\n set<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n value: PartialWithFieldValue<AppModelType>,\n options?: SetOptions\n ): this {\n const ref = validateReference(documentRef, this._firestore);\n const convertedValue = applyFirestoreDataConverter(\n ref.converter,\n value,\n options\n );\n const parsed = parseSetData(\n this._dataReader,\n 'Transaction.set',\n ref._key,\n convertedValue,\n ref.converter !== null,\n options\n );\n this._transaction.set(ref._key, parsed);\n return this;\n }\n\n /**\n * Updates fields in the document referred to by the provided {@link\n * DocumentReference}. The update will fail if applied to a document that does\n * not exist.\n *\n * @param documentRef - A reference to the document to be updated.\n * @param data - An object containing the fields and values with which to\n * update the document. Fields can contain dots to reference nested fields\n * within the document.\n * @throws Error - If the provided input is not valid Firestore data.\n * @returns This `Transaction` instance. Used for chaining method calls.\n */\n update<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n data: UpdateData<DbModelType>\n ): this;\n /**\n * Updates fields in the document referred to by the provided {@link\n * DocumentReference}. The update will fail if applied to a document that does\n * not exist.\n *\n * Nested fields can be updated by providing dot-separated field path\n * strings or by providing `FieldPath` objects.\n *\n * @param documentRef - A reference to the document to be updated.\n * @param field - The first field to update.\n * @param value - The first value.\n * @param moreFieldsAndValues - Additional key/value pairs.\n * @throws Error - If the provided input is not valid Firestore data.\n * @returns This `Transaction` instance. Used for chaining method calls.\n */\n update<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n field: string | FieldPath,\n value: unknown,\n ...moreFieldsAndValues: unknown[]\n ): this;\n update<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>,\n fieldOrUpdateData: string | FieldPath | UpdateData<DbModelType>,\n value?: unknown,\n ...moreFieldsAndValues: unknown[]\n ): this {\n const ref = validateReference(documentRef, this._firestore);\n\n // For Compat types, we have to \"extract\" the underlying types before\n // performing validation.\n fieldOrUpdateData = getModularInstance(fieldOrUpdateData);\n\n let parsed;\n if (\n typeof fieldOrUpdateData === 'string' ||\n fieldOrUpdateData instanceof FieldPath\n ) {\n parsed = parseUpdateVarargs(\n this._dataReader,\n 'Transaction.update',\n ref._key,\n fieldOrUpdateData,\n value,\n moreFieldsAndValues\n );\n } else {\n parsed = parseUpdateData(\n this._dataReader,\n 'Transaction.update',\n ref._key,\n fieldOrUpdateData\n );\n }\n\n this._transaction.update(ref._key, parsed);\n return this;\n }\n\n /**\n * Deletes the document referred to by the provided {@link DocumentReference}.\n *\n * @param documentRef - A reference to the document to be deleted.\n * @returns This `Transaction` instance. Used for chaining method calls.\n */\n delete<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>\n ): this {\n const ref = validateReference(documentRef, this._firestore);\n this._transaction.delete(ref._key);\n return this;\n }\n}\n\n/**\n * Executes the given `updateFunction` and then attempts to commit the changes\n * applied within the transaction. If any document read within the transaction\n * has changed, Cloud Firestore retries the `updateFunction`. If it fails to\n * commit after 5 attempts, the transaction fails.\n *\n * The maximum number of writes allowed in a single transaction is 500.\n *\n * @param firestore - A reference to the Firestore database to run this\n * transaction against.\n * @param updateFunction - The function to execute within the transaction\n * context.\n * @param options - An options object to configure maximum number of attempts to\n * commit.\n * @returns If the transaction completed successfully or was explicitly aborted\n * (the `updateFunction` returned a failed promise), the promise returned by the\n * `updateFunction `is returned here. Otherwise, if the transaction failed, a\n * rejected promise with the corresponding failure error is returned.\n */\nexport function runTransaction<T>(\n firestore: Firestore,\n updateFunction: (transaction: Transaction) => Promise<T>,\n options?: TransactionOptions\n): Promise<T> {\n firestore = cast(firestore, Firestore);\n const datastore = getDatastore(firestore);\n const optionsWithDefaults: TransactionOptionsInternal = {\n ...DEFAULT_TRANSACTION_OPTIONS,\n ...options\n };\n validateTransactionOptions(optionsWithDefaults);\n const deferred = new Deferred<T>();\n new TransactionRunner<T>(\n newAsyncQueue(),\n datastore,\n optionsWithDefaults,\n internalTransaction =>\n updateFunction(new Transaction(firestore, internalTransaction)),\n deferred\n ).run();\n return deferred.promise;\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { firestoreClientTransaction } from '../core/firestore_client';\nimport { Transaction as InternalTransaction } from '../core/transaction';\nimport {\n TransactionOptions as TransactionOptionsInternal,\n DEFAULT_TRANSACTION_OPTIONS,\n validateTransactionOptions\n} from '../core/transaction_options';\nimport { DocumentData, DocumentReference } from '../lite-api/reference';\nimport { Transaction as LiteTransaction } from '../lite-api/transaction';\nimport { validateReference } from '../lite-api/write_batch';\nimport { cast } from '../util/input_validation';\n\nimport { ensureFirestoreConfigured, Firestore } from './database';\nimport { DocumentSnapshot, SnapshotMetadata } from './snapshot';\nimport { TransactionOptions } from './transaction_options';\nimport { ExpUserDataWriter } from './user_data_writer';\n\n/**\n * A reference to a transaction.\n *\n * The `Transaction` object passed to a transaction's `updateFunction` provides\n * the methods to read and write data within the transaction context. See\n * {@link runTransaction}.\n */\nexport class Transaction extends LiteTransaction {\n // This class implements the same logic as the Transaction API in the Lite SDK\n // but is subclassed in order to return its own DocumentSnapshot types.\n\n /** @hideconstructor */\n constructor(\n protected readonly _firestore: Firestore,\n _transaction: InternalTransaction\n ) {\n super(_firestore, _transaction);\n }\n\n /**\n * Reads the document referenced by the provided {@link DocumentReference}.\n *\n * @param documentRef - A reference to the document to be read.\n * @returns A `DocumentSnapshot` with the read data.\n */\n get<AppModelType, DbModelType extends DocumentData>(\n documentRef: DocumentReference<AppModelType, DbModelType>\n ): Promise<DocumentSnapshot<AppModelType, DbModelType>> {\n const ref = validateReference(documentRef, this._firestore);\n const userDataWriter = new ExpUserDataWriter(this._firestore);\n return super\n .get(documentRef)\n .then(\n liteDocumentSnapshot =>\n new DocumentSnapshot(\n this._firestore,\n userDataWriter,\n ref._key,\n liteDocumentSnapshot._document,\n new SnapshotMetadata(\n /* hasPendingWrites= */ false,\n /* fromCache= */ false\n ),\n ref.converter\n )\n );\n }\n}\n\n/**\n * Executes the given `updateFunction` and then attempts to commit the changes\n * applied within the transaction. If any document read within the transaction\n * has changed, Cloud Firestore retries the `updateFunction`. If it fails to\n * commit after 5 attempts, the transaction fails.\n *\n * The maximum number of writes allowed in a single transaction is 500.\n *\n * @param firestore - A reference to the Firestore database to run this\n * transaction against.\n * @param updateFunction - The function to execute within the transaction\n * context.\n * @param options - An options object to configure maximum number of attempts to\n * commit.\n * @returns If the transaction completed successfully or was explicitly aborted\n * (the `updateFunction` returned a failed promise), the promise returned by the\n * `updateFunction `is returned here. Otherwise, if the transaction failed, a\n * rejected promise with the corresponding failure error is returned.\n */\nexport function runTransaction<T>(\n firestore: Firestore,\n updateFunction: (transaction: Transaction) => Promise<T>,\n options?: TransactionOptions\n): Promise<T> {\n firestore = cast(firestore, Firestore);\n const optionsWithDefaults: TransactionOptionsInternal = {\n ...DEFAULT_TRANSACTION_OPTIONS,\n ...options\n };\n validateTransactionOptions(optionsWithDefaults);\n const client = ensureFirestoreConfigured(firestore);\n return firestoreClientTransaction(\n client,\n internalTransaction =>\n updateFunction(new Transaction(firestore, internalTransaction)),\n optionsWithDefaults\n );\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { getModularInstance } from '@firebase/util';\n\nimport { loadBundle, namedQuery } from '../api/database';\nimport {\n CompleteFn,\n ErrorFn,\n isPartialObserver,\n NextFn,\n PartialObserver\n} from '../api/observer';\nimport { ListenerDataSource } from '../core/event_manager';\nimport {\n firestoreClientAddSnapshotsInSyncListener,\n firestoreClientGetDocumentFromLocalCache,\n firestoreClientGetDocumentsFromLocalCache,\n firestoreClientGetDocumentsViaSnapshotListener,\n firestoreClientGetDocumentViaSnapshotListener,\n firestoreClientListen,\n firestoreClientWrite\n} from '../core/firestore_client';\nimport { newQueryForPath, Query as InternalQuery } from '../core/query';\nimport { ViewSnapshot } from '../core/view_snapshot';\nimport { FieldPath } from '../lite-api/field_path';\nimport { validateHasExplicitOrderByForLimitToLast } from '../lite-api/query';\nimport {\n CollectionReference,\n doc,\n DocumentData,\n DocumentReference,\n PartialWithFieldValue,\n Query,\n SetOptions,\n UpdateData,\n WithFieldValue\n} from '../lite-api/reference';\nimport { applyFirestoreDataConverter } from '../lite-api/reference_impl';\nimport {\n newUserDataReader,\n ParsedUpdateData,\n parseSetData,\n parseUpdateData,\n parseUpdateVarargs\n} from '../lite-api/user_data_reader';\nimport { DocumentKey } from '../model/document_key';\nimport { DeleteMutation, Mutation, Precondition } from '../model/mutation';\nimport { debugAssert } from '../util/assert';\nimport { Code, FirestoreError } from '../util/error';\nimport { cast } from '../util/input_validation';\n\nimport { ensureFirestoreConfigured, Firestore } from './database';\nimport {\n DocumentSnapshot,\n FirestoreDataConverter,\n QuerySnapshot,\n SnapshotMetadata\n} from './snapshot';\nimport { ExpUserDataWriter } from './user_data_writer';\n\n/**\n * An options object that can be passed to {@link (onSnapshot:1)} and {@link\n * QuerySnapshot.docChanges} to control which types of changes to include in the\n * result set.\n */\nexport interface SnapshotListenOptions {\n /**\n * Include a change even if only the metadata of the query or of a document\n * changed. Default is false.\n */\n readonly includeMetadataChanges?: boolean;\n\n /**\n * Set the source the query listens to. Default to \"default\", which\n * listens to both cache and server.\n */\n readonly source?: ListenSource;\n}\n\n/**\n * Describe the source a query listens to.\n *\n * Set to `default` to listen to both cache and server changes. Set to `cache`\n * to listen to changes in cache only.\n */\nexport type ListenSource = 'default' | 'cache';\n\n/**\n * Reads the document referred to by this `DocumentReference`.\n *\n * Note: `getDoc()` attempts to provide up-to-date data when possible by waiting\n * for data from the server, but it may return cached data or fail if you are\n * offline and the server cannot be reached. To specify this behavior, invoke\n * {@link getDocFromCache} or {@link getDocFromServer}.\n *\n * @param reference - The reference of the document to fetch.\n * @returns A Promise resolved with a `DocumentSnapshot` containing the\n * current document contents.\n */\nexport function getDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>\n): Promise<DocumentSnapshot<AppModelType, DbModelType>> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const firestore = cast(reference.firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n\n return firestoreClientGetDocumentViaSnapshotListener(\n client,\n reference._key\n ).then(snapshot => convertToDocSnapshot(firestore, reference, snapshot));\n}\n\n/**\n * Reads the document referred to by this `DocumentReference` from cache.\n * Returns an error if the document is not currently cached.\n *\n * @returns A `Promise` resolved with a `DocumentSnapshot` containing the\n * current document contents.\n */\nexport function getDocFromCache<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>\n): Promise<DocumentSnapshot<AppModelType, DbModelType>> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const firestore = cast(reference.firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n const userDataWriter = new ExpUserDataWriter(firestore);\n\n return firestoreClientGetDocumentFromLocalCache(client, reference._key).then(\n doc =>\n new DocumentSnapshot<AppModelType, DbModelType>(\n firestore,\n userDataWriter,\n reference._key,\n doc,\n new SnapshotMetadata(\n doc !== null && doc.hasLocalMutations,\n /* fromCache= */ true\n ),\n reference.converter\n )\n );\n}\n\n/**\n * Reads the document referred to by this `DocumentReference` from the server.\n * Returns an error if the network is not available.\n *\n * @returns A `Promise` resolved with a `DocumentSnapshot` containing the\n * current document contents.\n */\nexport function getDocFromServer<\n AppModelType,\n DbModelType extends DocumentData\n>(\n reference: DocumentReference<AppModelType, DbModelType>\n): Promise<DocumentSnapshot<AppModelType, DbModelType>> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const firestore = cast(reference.firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n\n return firestoreClientGetDocumentViaSnapshotListener(client, reference._key, {\n source: 'server'\n }).then(snapshot => convertToDocSnapshot(firestore, reference, snapshot));\n}\n\n/**\n * Executes the query and returns the results as a `QuerySnapshot`.\n *\n * Note: `getDocs()` attempts to provide up-to-date data when possible by\n * waiting for data from the server, but it may return cached data or fail if\n * you are offline and the server cannot be reached. To specify this behavior,\n * invoke {@link getDocsFromCache} or {@link getDocsFromServer}.\n *\n * @returns A `Promise` that will be resolved with the results of the query.\n */\nexport function getDocs<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>\n): Promise<QuerySnapshot<AppModelType, DbModelType>> {\n query = cast<Query<AppModelType, DbModelType>>(query, Query);\n const firestore = cast(query.firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n const userDataWriter = new ExpUserDataWriter(firestore);\n\n validateHasExplicitOrderByForLimitToLast(query._query);\n return firestoreClientGetDocumentsViaSnapshotListener(\n client,\n query._query\n ).then(\n snapshot =>\n new QuerySnapshot<AppModelType, DbModelType>(\n firestore,\n userDataWriter,\n query,\n snapshot\n )\n );\n}\n\n/**\n * Executes the query and returns the results as a `QuerySnapshot` from cache.\n * Returns an empty result set if no documents matching the query are currently\n * cached.\n *\n * @returns A `Promise` that will be resolved with the results of the query.\n */\nexport function getDocsFromCache<\n AppModelType,\n DbModelType extends DocumentData\n>(\n query: Query<AppModelType, DbModelType>\n): Promise<QuerySnapshot<AppModelType, DbModelType>> {\n query = cast<Query<AppModelType, DbModelType>>(query, Query);\n const firestore = cast(query.firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n const userDataWriter = new ExpUserDataWriter(firestore);\n\n return firestoreClientGetDocumentsFromLocalCache(client, query._query).then(\n snapshot =>\n new QuerySnapshot<AppModelType, DbModelType>(\n firestore,\n userDataWriter,\n query,\n snapshot\n )\n );\n}\n\n/**\n * Executes the query and returns the results as a `QuerySnapshot` from the\n * server. Returns an error if the network is not available.\n *\n * @returns A `Promise` that will be resolved with the results of the query.\n */\nexport function getDocsFromServer<\n AppModelType,\n DbModelType extends DocumentData\n>(\n query: Query<AppModelType, DbModelType>\n): Promise<QuerySnapshot<AppModelType, DbModelType>> {\n query = cast<Query<AppModelType, DbModelType>>(query, Query);\n const firestore = cast(query.firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n const userDataWriter = new ExpUserDataWriter(firestore);\n\n return firestoreClientGetDocumentsViaSnapshotListener(client, query._query, {\n source: 'server'\n }).then(\n snapshot => new QuerySnapshot(firestore, userDataWriter, query, snapshot)\n );\n}\n\n/**\n * Writes to the document referred to by this `DocumentReference`. If the\n * document does not yet exist, it will be created.\n *\n * @param reference - A reference to the document to write.\n * @param data - A map of the fields and values for the document.\n * @returns A `Promise` resolved once the data has been successfully written\n * to the backend (note that it won't resolve while you're offline).\n */\nexport function setDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n data: WithFieldValue<AppModelType>\n): Promise<void>;\n/**\n * Writes to the document referred to by the specified `DocumentReference`. If\n * the document does not yet exist, it will be created. If you provide `merge`\n * or `mergeFields`, the provided data can be merged into an existing document.\n *\n * @param reference - A reference to the document to write.\n * @param data - A map of the fields and values for the document.\n * @param options - An object to configure the set behavior.\n * @returns A Promise resolved once the data has been successfully written\n * to the backend (note that it won't resolve while you're offline).\n */\nexport function setDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n data: PartialWithFieldValue<AppModelType>,\n options: SetOptions\n): Promise<void>;\nexport function setDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n data: PartialWithFieldValue<AppModelType>,\n options?: SetOptions\n): Promise<void> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const firestore = cast(reference.firestore, Firestore);\n\n const convertedValue = applyFirestoreDataConverter(\n reference.converter,\n data as WithFieldValue<AppModelType>,\n options\n );\n const dataReader = newUserDataReader(firestore);\n const parsed = parseSetData(\n dataReader,\n 'setDoc',\n reference._key,\n convertedValue,\n reference.converter !== null,\n options\n );\n\n const mutation = parsed.toMutation(reference._key, Precondition.none());\n return executeWrite(firestore, [mutation]);\n}\n\n/**\n * Updates fields in the document referred to by the specified\n * `DocumentReference`. The update will fail if applied to a document that does\n * not exist.\n *\n * @param reference - A reference to the document to update.\n * @param data - An object containing the fields and values with which to\n * update the document. Fields can contain dots to reference nested fields\n * within the document.\n * @returns A `Promise` resolved once the data has been successfully written\n * to the backend (note that it won't resolve while you're offline).\n */\nexport function updateDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n data: UpdateData<DbModelType>\n): Promise<void>;\n/**\n * Updates fields in the document referred to by the specified\n * `DocumentReference` The update will fail if applied to a document that does\n * not exist.\n *\n * Nested fields can be updated by providing dot-separated field path\n * strings or by providing `FieldPath` objects.\n *\n * @param reference - A reference to the document to update.\n * @param field - The first field to update.\n * @param value - The first value.\n * @param moreFieldsAndValues - Additional key value pairs.\n * @returns A `Promise` resolved once the data has been successfully written\n * to the backend (note that it won't resolve while you're offline).\n */\nexport function updateDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n field: string | FieldPath,\n value: unknown,\n ...moreFieldsAndValues: unknown[]\n): Promise<void>;\nexport function updateDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<unknown>,\n fieldOrUpdateData: string | FieldPath | UpdateData<DbModelType>,\n value?: unknown,\n ...moreFieldsAndValues: unknown[]\n): Promise<void> {\n reference = cast<DocumentReference<AppModelType, DbModelType>>(\n reference,\n DocumentReference\n );\n const firestore = cast(reference.firestore, Firestore);\n\n const dataReader = newUserDataReader(firestore);\n\n // For Compat types, we have to \"extract\" the underlying types before\n // performing validation.\n fieldOrUpdateData = getModularInstance(fieldOrUpdateData);\n\n let parsed: ParsedUpdateData;\n if (\n typeof fieldOrUpdateData === 'string' ||\n fieldOrUpdateData instanceof FieldPath\n ) {\n parsed = parseUpdateVarargs(\n dataReader,\n 'updateDoc',\n reference._key,\n fieldOrUpdateData,\n value,\n moreFieldsAndValues\n );\n } else {\n parsed = parseUpdateData(\n dataReader,\n 'updateDoc',\n reference._key,\n fieldOrUpdateData\n );\n }\n\n const mutation = parsed.toMutation(reference._key, Precondition.exists(true));\n return executeWrite(firestore, [mutation]);\n}\n\n/**\n * Deletes the document referred to by the specified `DocumentReference`.\n *\n * @param reference - A reference to the document to delete.\n * @returns A Promise resolved once the document has been successfully\n * deleted from the backend (note that it won't resolve while you're offline).\n */\nexport function deleteDoc<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>\n): Promise<void> {\n const firestore = cast(reference.firestore, Firestore);\n const mutations = [new DeleteMutation(reference._key, Precondition.none())];\n return executeWrite(firestore, mutations);\n}\n\n/**\n * Add a new document to specified `CollectionReference` with the given data,\n * assigning it a document ID automatically.\n *\n * @param reference - A reference to the collection to add this document to.\n * @param data - An Object containing the data for the new document.\n * @returns A `Promise` resolved with a `DocumentReference` pointing to the\n * newly created document after it has been written to the backend (Note that it\n * won't resolve while you're offline).\n */\nexport function addDoc<AppModelType, DbModelType extends DocumentData>(\n reference: CollectionReference<AppModelType, DbModelType>,\n data: WithFieldValue<AppModelType>\n): Promise<DocumentReference<AppModelType, DbModelType>> {\n const firestore = cast(reference.firestore, Firestore);\n\n const docRef = doc(reference);\n const convertedValue = applyFirestoreDataConverter(reference.converter, data);\n\n const dataReader = newUserDataReader(reference.firestore);\n const parsed = parseSetData(\n dataReader,\n 'addDoc',\n docRef._key,\n convertedValue,\n reference.converter !== null,\n {}\n );\n\n const mutation = parsed.toMutation(docRef._key, Precondition.exists(false));\n return executeWrite(firestore, [mutation]).then(() => docRef);\n}\n\n/**\n * A function returned by `onSnapshot()` that removes the listener when invoked.\n */\nexport interface Unsubscribe {\n /** Removes the listener when invoked. */\n (): void;\n}\n\n// TODO(firestorexp): Make sure these overloads are tested via the Firestore\n// integration tests\n\n/**\n * Attaches a listener for `DocumentSnapshot` events. You may either pass individual `onNext` and\n * `onError` callbacks or pass a single observer object with `next` and `error` callbacks.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param reference - A reference to the document to listen to.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @returns An unsubscribe function that can be called to cancel\n * the snapshot listener.\n */\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n observer: {\n next?: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n }\n): Unsubscribe;\n/**\n * Attaches a listener for `DocumentSnapshot` events. You may either pass individual `onNext` and\n * `onError` callbacks or pass a single observer object with `next` and `error` callbacks.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param reference - A reference to the document to listen to.\n * @param options - Options controlling the listen behavior.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @returns An unsubscribe function that can be called to cancel\n * the snapshot listener.\n */\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n options: SnapshotListenOptions,\n observer: {\n next?: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n }\n): Unsubscribe;\n/**\n * Attaches a listener for `DocumentSnapshot` events. You may either pass individual `onNext` and\n * `onError` callbacks or pass a single observer object with `next` and `error` callbacks.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param reference - A reference to the document to listen to.\n * @param onNext - A callback to be called every time a new `DocumentSnapshot` is available.\n * @param onError - A callback to be called if the listen fails or is cancelled. No further\n * callbacks will occur.\n * @param onCompletion - Can be provided, but will not be called since streams are never ending.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n onNext: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void,\n onError?: (error: FirestoreError) => void,\n onCompletion?: () => void\n): Unsubscribe;\n/**\n * Attaches a listener for `DocumentSnapshot` events. You may either pass individual `onNext` and\n * `onError` callbacks or pass a single observer object with `next` and `error` callbacks.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param reference - A reference to the document to listen to.\n * @param options - Options controlling the listen behavior.\n * @param onNext - A callback to be called every time a new `DocumentSnapshot` is available.\n * @param onError - A callback to be called if the listen fails or is cancelled. No further\n * callbacks will occur.\n * @param onCompletion - Can be provided, but will not be called since streams are never ending.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n reference: DocumentReference<AppModelType, DbModelType>,\n options: SnapshotListenOptions,\n onNext: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void,\n onError?: (error: FirestoreError) => void,\n onCompletion?: () => void\n): Unsubscribe;\n/**\n * Attaches a listener for `QuerySnapshot` events. You may either pass individual `onNext` and\n * `onError` callbacks or pass a single observer object with `next` and `error` callbacks. The\n * listener can be cancelled by calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param query - The query to listen to.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>,\n observer: {\n next?: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n }\n): Unsubscribe;\n/**\n * Attaches a listener for `QuerySnapshot` events. You may either pass individual `onNext` and\n * `onError` callbacks or pass a single observer object with `next` and `error` callbacks. The\n * listener can be cancelled by calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param query - The query to listen to.\n * @param options - Options controlling the listen behavior.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>,\n options: SnapshotListenOptions,\n observer: {\n next?: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n }\n): Unsubscribe;\n/**\n * Attaches a listener for `QuerySnapshot` events. You may either pass individual `onNext` and\n * `onError` callbacks or pass a single observer object with `next` and `error` callbacks. The\n * listener can be cancelled by calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param query - The query to listen to.\n * @param onNext - A callback to be called every time a new `QuerySnapshot` is available.\n * @param onCompletion - Can be provided, but will not be called since streams are never ending.\n * @param onError - A callback to be called if the listen fails or is cancelled. No further\n * callbacks will occur.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>,\n onNext: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void,\n onError?: (error: FirestoreError) => void,\n onCompletion?: () => void\n): Unsubscribe;\n/**\n * Attaches a listener for `QuerySnapshot` events. You may either pass individual `onNext` and\n * `onError` callbacks or pass a single observer object with `next` and `error` callbacks. The\n * listener can be cancelled by calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param query - The query to listen to.\n * @param options - Options controlling the listen behavior.\n * @param onNext - A callback to be called every time a new `QuerySnapshot` is available.\n * @param onCompletion - Can be provided, but will not be called since streams are never ending.\n * @param onError - A callback to be called if the listen fails or is cancelled. No further\n * callbacks will occur.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n query: Query<AppModelType, DbModelType>,\n options: SnapshotListenOptions,\n onNext: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void,\n onError?: (error: FirestoreError) => void,\n onCompletion?: () => void\n): Unsubscribe;\nexport function onSnapshot<AppModelType, DbModelType extends DocumentData>(\n reference:\n | Query<AppModelType, DbModelType>\n | DocumentReference<AppModelType, DbModelType>,\n ...args: unknown[]\n): Unsubscribe {\n // onSnapshot for Query or Document.\n reference = getModularInstance(reference);\n let options: SnapshotListenOptions = {\n includeMetadataChanges: false,\n source: 'default'\n };\n let currArg = 0;\n if (typeof args[currArg] === 'object' && !isPartialObserver(args[currArg])) {\n options = args[currArg++] as SnapshotListenOptions;\n }\n\n const internalOptions = {\n includeMetadataChanges: options.includeMetadataChanges,\n source: options.source as ListenerDataSource\n };\n\n if (isPartialObserver(args[currArg])) {\n const userObserver = args[currArg] as PartialObserver<\n QuerySnapshot<AppModelType, DbModelType>\n >;\n args[currArg] = userObserver.next?.bind(userObserver);\n args[currArg + 1] = userObserver.error?.bind(userObserver);\n args[currArg + 2] = userObserver.complete?.bind(userObserver);\n }\n\n let observer: PartialObserver<ViewSnapshot>;\n let firestore: Firestore;\n let internalQuery: InternalQuery;\n\n if (reference instanceof DocumentReference) {\n firestore = cast(reference.firestore, Firestore);\n internalQuery = newQueryForPath(reference._key.path);\n\n observer = {\n next: snapshot => {\n if (args[currArg]) {\n (\n args[currArg] as NextFn<DocumentSnapshot<AppModelType, DbModelType>>\n )(\n convertToDocSnapshot(\n firestore,\n reference as DocumentReference<AppModelType, DbModelType>,\n snapshot\n )\n );\n }\n },\n error: args[currArg + 1] as ErrorFn,\n complete: args[currArg + 2] as CompleteFn\n };\n } else {\n const query = cast<Query<AppModelType, DbModelType>>(reference, Query);\n firestore = cast(query.firestore, Firestore);\n internalQuery = query._query;\n const userDataWriter = new ExpUserDataWriter(firestore);\n observer = {\n next: snapshot => {\n if (args[currArg]) {\n (args[currArg] as NextFn<QuerySnapshot<AppModelType, DbModelType>>)(\n new QuerySnapshot(firestore, userDataWriter, query, snapshot)\n );\n }\n },\n error: args[currArg + 1] as ErrorFn,\n complete: args[currArg + 2] as CompleteFn\n };\n\n validateHasExplicitOrderByForLimitToLast(reference._query);\n }\n\n const client = ensureFirestoreConfigured(firestore);\n return firestoreClientListen(\n client,\n internalQuery,\n internalOptions,\n observer\n );\n}\n\n/**\n * Attaches a listener for `QuerySnapshot` events based on data generated by invoking\n * {@link QuerySnapshot.toJSON} You may either pass individual `onNext` and `onError` callbacks or\n * pass a single observer object with `next` and `error` callbacks. The listener can be cancelled by\n * calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param firestore - The {@link Firestore} instance to enable the listener for.\n * @param snapshotJson - A JSON object generated by invoking {@link QuerySnapshot.toJSON}.\n * @param onNext - A callback to be called every time a new `QuerySnapshot` is available.\n * @param onError - A callback to be called if the listen fails or is cancelled. No further\n * callbacks will occur.\n * @param onCompletion - Can be provided, but will not be called since streams are never ending.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n snapshotJson: object,\n onNext: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void,\n onError?: (error: FirestoreError) => void,\n onCompletion?: () => void,\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe;\n/**\n * Attaches a listener for `DocumentSnapshot` events based on data generated by invoking\n * {@link DocumentSnapshot.toJSON}. You may either pass individual `onNext` and `onError` callbacks or\n * pass a single observer object with `next` and `error` callbacks. The listener can be cancelled by\n * calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param firestore - The {@link Firestore} instance to enable the listener for.\n * @param snapshotJson - A JSON object generated by invoking {@link DocumentSnapshot.toJSON}.\n * @param onNext - A callback to be called every time a new `DocumentSnapshot` is available.\n * @param onError - A callback to be called if the listen fails or is cancelled. No further\n * callbacks will occur.\n * @param onCompletion - Can be provided, but will not be called since streams are\n * never ending.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n snapshotJson: object,\n onNext: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void,\n onError?: (error: FirestoreError) => void,\n onCompletion?: () => void,\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe;\n/**\n * Attaches a listener for `QuerySnapshot` events based on data generated by invoking\n * {@link QuerySnapshot.toJSON}. You may either pass individual `onNext` and `onError` callbacks or\n * pass a single observer object with `next` and `error` callbacks. The listener can be cancelled by\n * calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param firestore - The {@link Firestore} instance to enable the listener for.\n * @param snapshotJson - A JSON object generated by invoking {@link QuerySnapshot.toJSON}.\n * @param options - Options controlling the listen behavior.\n * @param onNext - A callback to be called every time a new `QuerySnapshot` is available.\n * @param onError - A callback to be called if the listen fails or is cancelled. No further\n * callbacks will occur.\n * @param onCompletion - Can be provided, but will not be called since streams are never ending.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n snapshotJson: object,\n options: SnapshotListenOptions,\n onNext: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void,\n onError?: (error: FirestoreError) => void,\n onCompletion?: () => void,\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe;\n/**\n * Attaches a listener for `DocumentSnapshot` events based on data generated by invoking\n * {@link DocumentSnapshot.toJSON}. You may either pass individual `onNext` and `onError` callbacks\n * or pass a single observer object with `next` and `error` callbacks. The listener can be cancelled\n * by calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param firestore - The {@link Firestore} instance to enable the listener for.\n * @param snapshotJson - A JSON object generated by invoking {@link DocumentSnapshot.toJSON}.\n * @param options - Options controlling the listen behavior.\n * @param onNext - A callback to be called every time a new `DocumentSnapshot` is available.\n * @param onError - A callback to be called if the listen fails or is cancelled. No further\n * callbacks will occur.\n * @param onCompletion - Can be provided, but will not be called since streams are never ending.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel\n * the snapshot listener.\n */\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n snapshotJson: object,\n options: SnapshotListenOptions,\n onNext: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void,\n onError?: (error: FirestoreError) => void,\n onCompletion?: () => void,\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe;\n/**\n * Attaches a listener for `QuerySnapshot` events based on QuerySnapshot data generated by invoking\n * {@link QuerySnapshot.toJSON}. You may either pass individual `onNext` and `onError` callbacks or\n * pass a single observer object with `next` and `error` callbacks. The listener can be cancelled by\n * calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param firestore - The {@link Firestore} instance to enable the listener for.\n * @param snapshotJson - A JSON object generated by invoking {@link QuerySnapshot.toJSON}.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel\n * the snapshot listener.\n */\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n snapshotJson: object,\n observer: {\n next: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n },\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe;\n/**\n * Attaches a listener for `DocumentSnapshot` events based on data generated by invoking\n * {@link DocumentSnapshot.toJSON} You may either pass individual `onNext` and `onError` callbacks\n * or pass a single observer object with `next` and `error` callbacks. The listener can be cancelled\n * by calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param firestore - The {@link Firestore} instance to enable the listener for.\n * @param snapshotJson - A JSON object generated by invoking {@link DocumentSnapshot.toJSON}.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel\n * the snapshot listener.\n */\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n snapshotJson: object,\n observer: {\n next: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n },\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe;\n/**\n * Attaches a listener for `QuerySnapshot` events based on QuerySnapshot data generated by invoking\n * {@link QuerySnapshot.toJSON} You may either pass individual `onNext` and `onError` callbacks or\n * pass a single observer object with `next` and `error` callbacks. The listener can be cancelled by\n * calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param firestore - The {@link Firestore} instance to enable the listener for.\n * @param snapshotJson - A JSON object generated by invoking {@link QuerySnapshot.toJSON}.\n * @param options - Options controlling the listen behavior.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel\n * the snapshot listener.\n */\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n snapshotJson: object,\n options: SnapshotListenOptions,\n observer: {\n next: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n },\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe;\n/**\n * Attaches a listener for `DocumentSnapshot` events based on QuerySnapshot data generated by\n * invoking {@link DocumentSnapshot.toJSON} You may either pass individual `onNext` and `onError`\n * callbacks or pass a single observer object with `next` and `error` callbacks. The listener can be\n * cancelled by calling the function that is returned when `onSnapshot` is called.\n *\n * NOTE: Although an `onCompletion` callback can be provided, it will never be called because the\n * snapshot stream is never-ending.\n *\n * @param firestore - The {@link Firestore} instance to enable the listener for.\n * @param snapshotJson - A JSON object generated by invoking {@link DocumentSnapshot.toJSON}.\n * @param options - Options controlling the listen behavior.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel the snapshot listener.\n */\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(\n firestore: Firestore,\n snapshotJson: object,\n options: SnapshotListenOptions,\n observer: {\n next: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n },\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe;\nexport function onSnapshotResume<\n AppModelType,\n DbModelType extends DocumentData\n>(reference: Firestore, snapshotJson: object, ...args: unknown[]): Unsubscribe {\n const db = getModularInstance(reference);\n const json = normalizeSnapshotJsonFields(snapshotJson);\n if (json.error) {\n throw new FirestoreError(Code.INVALID_ARGUMENT, json.error);\n }\n let curArg = 0;\n let options: SnapshotListenOptions | undefined = undefined;\n if (typeof args[curArg] === 'object' && !isPartialObserver(args[curArg])) {\n options = args[curArg++] as SnapshotListenOptions;\n }\n\n if (json.bundleSource === 'QuerySnapshot') {\n let observer: {\n next: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n } | null = null;\n if (typeof args[curArg] === 'object' && isPartialObserver(args[curArg])) {\n const userObserver = args[curArg++] as PartialObserver<\n QuerySnapshot<AppModelType, DbModelType>\n >;\n observer = {\n next: userObserver.next!,\n error: userObserver.error,\n complete: userObserver.complete\n };\n } else {\n observer = {\n next: args[curArg++] as (\n snapshot: QuerySnapshot<AppModelType, DbModelType>\n ) => void,\n error: args[curArg++] as (error: FirestoreError) => void,\n complete: args[curArg++] as () => void\n };\n }\n return onSnapshotQuerySnapshotBundle(\n db,\n json,\n options,\n observer!,\n args[curArg] as FirestoreDataConverter<DbModelType>\n );\n } else if (json.bundleSource === 'DocumentSnapshot') {\n let observer: {\n next: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n } | null = null;\n if (typeof args[curArg] === 'object' && isPartialObserver(args[curArg])) {\n const userObserver = args[curArg++] as PartialObserver<\n DocumentSnapshot<AppModelType, DbModelType>\n >;\n observer = {\n next: userObserver.next!,\n error: userObserver.error,\n complete: userObserver.complete\n };\n } else {\n observer = {\n next: args[curArg++] as (\n snapshot: DocumentSnapshot<AppModelType, DbModelType>\n ) => void,\n error: args[curArg++] as (error: FirestoreError) => void,\n complete: args[curArg++] as () => void\n };\n }\n return onSnapshotDocumentSnapshotBundle(\n db,\n json,\n options,\n observer!,\n args[curArg] as FirestoreDataConverter<DbModelType>\n );\n } else {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n `unsupported bundle source: ${json.bundleSource}`\n );\n }\n}\n\n// TODO(firestorexp): Make sure these overloads are tested via the Firestore\n// integration tests\n\n/**\n * Attaches a listener for a snapshots-in-sync event. The snapshots-in-sync\n * event indicates that all listeners affected by a given change have fired,\n * even if a single server-generated change affects multiple listeners.\n *\n * NOTE: The snapshots-in-sync event only indicates that listeners are in sync\n * with each other, but does not relate to whether those snapshots are in sync\n * with the server. Use SnapshotMetadata in the individual listeners to\n * determine if a snapshot is from the cache or the server.\n *\n * @param firestore - The instance of Firestore for synchronizing snapshots.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @returns An unsubscribe function that can be called to cancel the snapshot\n * listener.\n */\nexport function onSnapshotsInSync(\n firestore: Firestore,\n observer: {\n next?: (value: void) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n }\n): Unsubscribe;\n/**\n * Attaches a listener for a snapshots-in-sync event. The snapshots-in-sync\n * event indicates that all listeners affected by a given change have fired,\n * even if a single server-generated change affects multiple listeners.\n *\n * NOTE: The snapshots-in-sync event only indicates that listeners are in sync\n * with each other, but does not relate to whether those snapshots are in sync\n * with the server. Use `SnapshotMetadata` in the individual listeners to\n * determine if a snapshot is from the cache or the server.\n *\n * @param firestore - The `Firestore` instance for synchronizing snapshots.\n * @param onSync - A callback to be called every time all snapshot listeners are\n * in sync with each other.\n * @returns An unsubscribe function that can be called to cancel the snapshot\n * listener.\n */\nexport function onSnapshotsInSync(\n firestore: Firestore,\n onSync: () => void\n): Unsubscribe;\nexport function onSnapshotsInSync(\n firestore: Firestore,\n arg: unknown\n): Unsubscribe {\n firestore = cast(firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n const observer = isPartialObserver(arg)\n ? (arg as PartialObserver<void>)\n : {\n next: arg as () => void\n };\n\n return firestoreClientAddSnapshotsInSyncListener(client, observer);\n}\n\n/**\n * Locally writes `mutations` on the async queue.\n * @internal\n */\nexport function executeWrite(\n firestore: Firestore,\n mutations: Mutation[]\n): Promise<void> {\n const client = ensureFirestoreConfigured(firestore);\n return firestoreClientWrite(client, mutations);\n}\n\n/**\n * Converts a {@link ViewSnapshot} that contains the single document specified by `ref`\n * to a {@link DocumentSnapshot}.\n */\nfunction convertToDocSnapshot<AppModelType, DbModelType extends DocumentData>(\n firestore: Firestore,\n ref: DocumentReference<AppModelType, DbModelType>,\n snapshot: ViewSnapshot\n): DocumentSnapshot<AppModelType, DbModelType> {\n debugAssert(\n snapshot.docs.size <= 1,\n 'Expected zero or a single result on a document-only query'\n );\n const doc = snapshot.docs.get(ref._key);\n\n const userDataWriter = new ExpUserDataWriter(firestore);\n return new DocumentSnapshot<AppModelType, DbModelType>(\n firestore,\n userDataWriter,\n ref._key,\n doc,\n new SnapshotMetadata(snapshot.hasPendingWrites, snapshot.fromCache),\n ref.converter\n );\n}\n\n/**\n * Ensures the data required to construct an {@link onSnapshot} listener exist in a `snapshotJson`\n * object that originates from {@link DocumentSnapshot.toJSON} or {@link Querysnapshot.toJSON}. The\n * data is normalized into a typed object.\n *\n * @param snapshotJson - The JSON object that the app provided to {@link onSnapshot}.\n * @returns A normalized object that contains all of the required bundle JSON fields. If\n * {@link snapshotJson} doesn't contain the required fields, or if the fields exist as empty\n * strings, then the {@link snapshotJson.error} field will be a non empty string.\n *\n * @internal\n */\nfunction normalizeSnapshotJsonFields(snapshotJson: object): {\n bundle: string;\n bundleName: string;\n bundleSource: string;\n error?: string;\n} {\n const result: {\n bundle: string;\n bundleName: string;\n bundleSource: string;\n error?: string;\n } = {\n bundle: '',\n bundleName: '',\n bundleSource: ''\n };\n const requiredKeys = ['bundle', 'bundleName', 'bundleSource'];\n for (const key of requiredKeys) {\n if (!(key in snapshotJson)) {\n result.error = `snapshotJson missing required field: ${key}`;\n break;\n }\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const value = (snapshotJson as any)[key];\n if (typeof value !== 'string') {\n result.error = `snapshotJson field '${key}' must be a string.`;\n break;\n }\n if (value.length === 0) {\n result.error = `snapshotJson field '${key}' cannot be an empty string.`;\n break;\n }\n if (key === 'bundle') {\n result.bundle = value;\n } else if (key === 'bundleName') {\n result.bundleName = value;\n } else if (key === 'bundleSource') {\n result.bundleSource = value;\n }\n }\n return result;\n}\n\n/**\n * Loads the bundle in a separate task and then invokes {@link onSnapshot} with a\n * {@link DocumentReference} for the document in the bundle.\n *\n * @param firestore - The {@link Firestore} instance for the {@link onSnapshot} operation request.\n * @param json - The JSON bundle to load, produced by {@link DocumentSnapshot.toJSON}.\n * @param options - Options controlling the listen behavior.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel the snapshot\n * listener.\n *\n * @internal\n */\nfunction onSnapshotDocumentSnapshotBundle<\n AppModelType,\n DbModelType extends DocumentData\n>(\n db: Firestore,\n json: { bundle: string; bundleName: string; bundleSource: string },\n options: SnapshotListenOptions | undefined,\n observer: {\n next: (snapshot: DocumentSnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n },\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe {\n let unsubscribed: boolean = false;\n let internalUnsubscribe: Unsubscribe | undefined;\n const loadTask = loadBundle(db, json.bundle);\n loadTask\n .then(() => {\n if (!unsubscribed) {\n const docReference = new DocumentReference(\n db,\n converter ? converter : null,\n DocumentKey.fromPath(json.bundleName)\n );\n internalUnsubscribe = onSnapshot(\n docReference as DocumentReference<AppModelType, DbModelType>,\n options ? options : {},\n observer\n );\n }\n })\n .catch(e => {\n if (observer.error) {\n observer.error(e);\n }\n return () => {};\n });\n return () => {\n if (unsubscribed) {\n return;\n }\n unsubscribed = true;\n if (internalUnsubscribe) {\n internalUnsubscribe();\n }\n };\n}\n\n/**\n * Loads the bundle in a separate task and then invokes {@link onSnapshot} with a\n * {@link Query} that represents the Query in the bundle.\n *\n * @param firestore - The {@link Firestore} instance for the {@link onSnapshot} operation request.\n * @param json - The JSON bundle to load, produced by {@link QuerySnapshot.toJSON}.\n * @param options - Options controlling the listen behavior.\n * @param observer - A single object containing `next` and `error` callbacks.\n * @param converter - An optional object that converts objects from Firestore before the onNext\n * listener is invoked.\n * @returns An unsubscribe function that can be called to cancel the snapshot\n * listener.\n *\n * @internal\n */\nfunction onSnapshotQuerySnapshotBundle<\n AppModelType,\n DbModelType extends DocumentData\n>(\n db: Firestore,\n json: { bundle: string; bundleName: string; bundleSource: string },\n options: SnapshotListenOptions | undefined,\n observer: {\n next: (snapshot: QuerySnapshot<AppModelType, DbModelType>) => void;\n error?: (error: FirestoreError) => void;\n complete?: () => void;\n },\n converter?: FirestoreDataConverter<DbModelType>\n): Unsubscribe {\n let unsubscribed: boolean = false;\n let internalUnsubscribe: Unsubscribe | undefined;\n const loadTask = loadBundle(db, json.bundle);\n loadTask\n .then(() => namedQuery(db, json.bundleName))\n .then(query => {\n if (query && !unsubscribed) {\n const realQuery: Query = (query as Query)!;\n if (converter) {\n realQuery.withConverter(converter);\n }\n internalUnsubscribe = onSnapshot(\n query as Query<AppModelType, DbModelType>,\n options ? options : {},\n observer\n );\n }\n })\n .catch(e => {\n if (observer.error) {\n observer.error(e);\n }\n return () => {};\n });\n return () => {\n if (unsubscribed) {\n return;\n }\n unsubscribed = true;\n if (internalUnsubscribe) {\n internalUnsubscribe();\n }\n };\n}\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { WriteBatch } from '../lite-api/write_batch';\nimport { cast } from '../util/input_validation';\n\nimport { ensureFirestoreConfigured, Firestore } from './database';\nimport { executeWrite } from './reference_impl';\n\nexport { WriteBatch };\n\n/**\n * Creates a write batch, used for performing multiple writes as a single\n * atomic operation. The maximum number of writes allowed in a single {@link WriteBatch}\n * is 500.\n *\n * Unlike transactions, write batches are persisted offline and therefore are\n * preferable when you don't need to condition your writes on read data.\n *\n * @returns A {@link WriteBatch} that can be used to atomically execute multiple\n * writes.\n */\nexport function writeBatch(firestore: Firestore): WriteBatch {\n firestore = cast(firestore, Firestore);\n ensureFirestoreConfigured(firestore);\n return new WriteBatch(firestore, mutations =>\n executeWrite(firestore, mutations)\n );\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { firestoreClientSetIndexConfiguration } from '../core/firestore_client';\nimport { fieldPathFromDotSeparatedString } from '../lite-api/user_data_reader';\nimport {\n FieldIndex,\n IndexKind,\n IndexSegment,\n IndexState\n} from '../model/field_index';\nimport { Code, FirestoreError } from '../util/error';\nimport { cast } from '../util/input_validation';\nimport { logWarn } from '../util/log';\n\nimport { ensureFirestoreConfigured, Firestore } from './database';\n\nexport {\n connectFirestoreEmulator,\n EmulatorMockTokenOptions\n} from '../lite-api/database';\n\n/**\n * A single field element in an index configuration.\n *\n * @deprecated Instead of creating cache indexes manually, consider using\n * `enablePersistentCacheIndexAutoCreation()` to let the SDK decide whether to\n * create cache indexes for queries running locally.\n *\n * @beta\n */\nexport interface IndexField {\n /** The field path to index. */\n readonly fieldPath: string;\n /**\n * What type of array index to create. Set to `CONTAINS` for `array-contains`\n * and `array-contains-any` indexes.\n *\n * Only one of `arrayConfig` or `order` should be set;\n */\n readonly arrayConfig?: 'CONTAINS';\n /**\n * What type of array index to create. Set to `ASCENDING` or 'DESCENDING` for\n * `==`, `!=`, `<=`, `<=`, `in` and `not-in` filters.\n *\n * Only one of `arrayConfig` or `order` should be set.\n */\n readonly order?: 'ASCENDING' | 'DESCENDING';\n\n [key: string]: unknown;\n}\n\n/**\n * The SDK definition of a Firestore index.\n *\n * @deprecated Instead of creating cache indexes manually, consider using\n * `enablePersistentCacheIndexAutoCreation()` to let the SDK decide whether to\n * create cache indexes for queries running locally.\n *\n * @beta\n */\nexport interface Index {\n /** The ID of the collection to index. */\n readonly collectionGroup: string;\n /** A list of fields to index. */\n readonly fields?: IndexField[];\n\n [key: string]: unknown;\n}\n\n/**\n * A list of Firestore indexes to speed up local query execution.\n *\n * See {@link https://firebase.google.com/docs/reference/firestore/indexes/#json_format | JSON Format}\n * for a description of the format of the index definition.\n *\n * @deprecated Instead of creating cache indexes manually, consider using\n * `enablePersistentCacheIndexAutoCreation()` to let the SDK decide whether to\n * create cache indexes for queries running locally.\n *\n * @beta\n */\nexport interface IndexConfiguration {\n /** A list of all Firestore indexes. */\n readonly indexes?: Index[];\n\n [key: string]: unknown;\n}\n\n/**\n * Configures indexing for local query execution. Any previous index\n * configuration is overridden. The `Promise` resolves once the index\n * configuration has been persisted.\n *\n * The index entries themselves are created asynchronously. You can continue to\n * use queries that require indexing even if the indices are not yet available.\n * Query execution will automatically start using the index once the index\n * entries have been written.\n *\n * Indexes are only supported with IndexedDb persistence. If IndexedDb is not\n * enabled, any index configuration is ignored.\n *\n * @param firestore - The {@link Firestore} instance to configure indexes for.\n * @param configuration -The index definition.\n * @throws FirestoreError if the JSON format is invalid.\n * @returns A `Promise` that resolves once all indices are successfully\n * configured.\n *\n * @deprecated Instead of creating cache indexes manually, consider using\n * `enablePersistentCacheIndexAutoCreation()` to let the SDK decide whether to\n * create cache indexes for queries running locally.\n *\n * @beta\n */\nexport function setIndexConfiguration(\n firestore: Firestore,\n configuration: IndexConfiguration\n): Promise<void>;\n\n/**\n * Configures indexing for local query execution. Any previous index\n * configuration is overridden. The `Promise` resolves once the index\n * configuration has been persisted.\n *\n * The index entries themselves are created asynchronously. You can continue to\n * use queries that require indexing even if the indices are not yet available.\n * Query execution will automatically start using the index once the index\n * entries have been written.\n *\n * Indexes are only supported with IndexedDb persistence. Invoke either\n * `enableIndexedDbPersistence()` or `enableMultiTabIndexedDbPersistence()`\n * before setting an index configuration. If IndexedDb is not enabled, any\n * index configuration is ignored.\n *\n * The method accepts the JSON format exported by the Firebase CLI (`firebase\n * firestore:indexes`). If the JSON format is invalid, this method throws an\n * error.\n *\n * @param firestore - The {@link Firestore} instance to configure indexes for.\n * @param json -The JSON format exported by the Firebase CLI.\n * @throws FirestoreError if the JSON format is invalid.\n * @returns A `Promise` that resolves once all indices are successfully\n * configured.\n *\n * @deprecated Instead of creating cache indexes manually, consider using\n * `enablePersistentCacheIndexAutoCreation()` to let the SDK decide whether to\n * create cache indexes for queries running locally.\n *\n * @beta\n */\nexport function setIndexConfiguration(\n firestore: Firestore,\n json: string\n): Promise<void>;\n\nexport function setIndexConfiguration(\n firestore: Firestore,\n jsonOrConfiguration: string | IndexConfiguration\n): Promise<void> {\n firestore = cast(firestore, Firestore);\n const client = ensureFirestoreConfigured(firestore);\n if (\n !client._uninitializedComponentsProvider ||\n client._uninitializedComponentsProvider._offline.kind === 'memory'\n ) {\n // PORTING NOTE: We don't return an error if the user has not enabled\n // persistence since `enableIndexeddbPersistence()` can fail on the Web.\n logWarn('Cannot enable indexes when persistence is disabled');\n return Promise.resolve();\n }\n const parsedIndexes = parseIndexes(jsonOrConfiguration);\n return firestoreClientSetIndexConfiguration(client, parsedIndexes);\n}\n\nexport function parseIndexes(\n jsonOrConfiguration: string | IndexConfiguration\n): FieldIndex[] {\n const indexConfiguration =\n typeof jsonOrConfiguration === 'string'\n ? (tryParseJson(jsonOrConfiguration) as IndexConfiguration)\n : jsonOrConfiguration;\n const parsedIndexes: FieldIndex[] = [];\n\n if (Array.isArray(indexConfiguration.indexes)) {\n for (const index of indexConfiguration.indexes) {\n const collectionGroup = tryGetString(index, 'collectionGroup');\n\n const segments: IndexSegment[] = [];\n if (Array.isArray(index.fields)) {\n for (const field of index.fields) {\n const fieldPathString = tryGetString(field, 'fieldPath');\n const fieldPath = fieldPathFromDotSeparatedString(\n 'setIndexConfiguration',\n fieldPathString\n );\n\n if (field.arrayConfig === 'CONTAINS') {\n segments.push(new IndexSegment(fieldPath, IndexKind.CONTAINS));\n } else if (field.order === 'ASCENDING') {\n segments.push(new IndexSegment(fieldPath, IndexKind.ASCENDING));\n } else if (field.order === 'DESCENDING') {\n segments.push(new IndexSegment(fieldPath, IndexKind.DESCENDING));\n }\n }\n }\n\n parsedIndexes.push(\n new FieldIndex(\n FieldIndex.UNKNOWN_ID,\n collectionGroup,\n segments,\n IndexState.empty()\n )\n );\n }\n }\n return parsedIndexes;\n}\n\nfunction tryParseJson(json: string): Record<string, unknown> {\n try {\n return JSON.parse(json);\n } catch (e) {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Failed to parse JSON: ' + (e as Error)?.message\n );\n }\n}\n\nfunction tryGetString(data: Record<string, unknown>, property: string): string {\n if (typeof data[property] !== 'string') {\n throw new FirestoreError(\n Code.INVALID_ARGUMENT,\n 'Missing string value for: ' + property\n );\n }\n return data[property] as string;\n}\n","/**\n * @license\n * Copyright 2023 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 firestoreClientDeleteAllFieldIndexes,\n firestoreClientSetPersistentCacheIndexAutoCreationEnabled\n} from '../core/firestore_client';\nimport { cast } from '../util/input_validation';\nimport { logDebug, logWarn } from '../util/log';\n\nimport { ensureFirestoreConfigured, Firestore } from './database';\n\n/**\n * A `PersistentCacheIndexManager` for configuring persistent cache indexes used\n * for local query execution.\n *\n * To use, call `getPersistentCacheIndexManager()` to get an instance.\n */\nexport class PersistentCacheIndexManager {\n /** A type string to uniquely identify instances of this class. */\n readonly type: 'PersistentCacheIndexManager' = 'PersistentCacheIndexManager';\n\n /** @hideconstructor */\n constructor(readonly _firestore: Firestore) {}\n}\n\n/**\n * Returns the PersistentCache Index Manager used by the given `Firestore`\n * object.\n *\n * @returns The `PersistentCacheIndexManager` instance, or `null` if local\n * persistent storage is not in use.\n */\nexport function getPersistentCacheIndexManager(\n firestore: Firestore\n): PersistentCacheIndexManager | null {\n firestore = cast(firestore, Firestore);\n\n const cachedInstance = persistentCacheIndexManagerByFirestore.get(firestore);\n if (cachedInstance) {\n return cachedInstance;\n }\n\n const client = ensureFirestoreConfigured(firestore);\n if (client._uninitializedComponentsProvider?._offline.kind !== 'persistent') {\n return null;\n }\n\n const instance = new PersistentCacheIndexManager(firestore);\n persistentCacheIndexManagerByFirestore.set(firestore, instance);\n return instance;\n}\n\n/**\n * Enables the SDK to create persistent cache indexes automatically for local\n * query execution when the SDK believes cache indexes can help improve\n * performance.\n *\n * This feature is disabled by default.\n */\nexport function enablePersistentCacheIndexAutoCreation(\n indexManager: PersistentCacheIndexManager\n): void {\n setPersistentCacheIndexAutoCreationEnabled(indexManager, true);\n}\n\n/**\n * Stops creating persistent cache indexes automatically for local query\n * execution. The indexes which have been created by calling\n * `enablePersistentCacheIndexAutoCreation()` still take effect.\n */\nexport function disablePersistentCacheIndexAutoCreation(\n indexManager: PersistentCacheIndexManager\n): void {\n setPersistentCacheIndexAutoCreationEnabled(indexManager, false);\n}\n\n/**\n * Removes all persistent cache indexes.\n *\n * Please note this function will also deletes indexes generated by\n * `setIndexConfiguration()`, which is deprecated.\n */\nexport function deleteAllPersistentCacheIndexes(\n indexManager: PersistentCacheIndexManager\n): void {\n const client = ensureFirestoreConfigured(indexManager._firestore);\n const promise = firestoreClientDeleteAllFieldIndexes(client);\n\n promise\n .then(_ => logDebug('deleting all persistent cache indexes succeeded'))\n .catch(error =>\n logWarn('deleting all persistent cache indexes failed', error)\n );\n}\n\nfunction setPersistentCacheIndexAutoCreationEnabled(\n indexManager: PersistentCacheIndexManager,\n isEnabled: boolean\n): void {\n const client = ensureFirestoreConfigured(indexManager._firestore);\n const promise = firestoreClientSetPersistentCacheIndexAutoCreationEnabled(\n client,\n isEnabled\n );\n\n promise\n .then(_ =>\n logDebug(\n `setting persistent cache index auto creation ` +\n `isEnabled=${isEnabled} succeeded`\n )\n )\n .catch(error =>\n logWarn(\n `setting persistent cache index auto creation ` +\n `isEnabled=${isEnabled} failed`,\n error\n )\n );\n}\n\n/**\n * Maps `Firestore` instances to their corresponding\n * `PersistentCacheIndexManager` instances.\n *\n * Use a `WeakMap` so that the mapping will be automatically dropped when the\n * `Firestore` instance is garbage collected. This emulates a private member\n * as described in https://goo.gle/454yvug.\n */\nconst persistentCacheIndexManagerByFirestore = new WeakMap<\n Firestore,\n PersistentCacheIndexManager\n>();\n","/**\n * @license\n * Copyright 2023 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 { Unsubscribe } from '../api/reference_impl';\n\nimport {\n setTestingHooksSpi,\n ExistenceFilterMismatchInfo,\n TestingHooksSpi\n} from './testing_hooks_spi';\n\n/**\n * Testing hooks for use by Firestore's integration test suite to reach into the\n * SDK internals to validate logic and behavior that is not visible from the\n * public API surface.\n *\n * @internal\n */\nexport class TestingHooks {\n private constructor() {\n throw new Error('instances of this class should not be created');\n }\n\n /**\n * Registers a callback to be notified when an existence filter mismatch\n * occurs in the Watch listen stream.\n *\n * The relative order in which callbacks are notified is unspecified; do not\n * rely on any particular ordering. If a given callback is registered multiple\n * times then it will be notified multiple times, once per registration.\n *\n * @param callback - the callback to invoke upon existence filter mismatch.\n *\n * @returns a function that, when called, unregisters the given callback; only\n * the first invocation of the returned function does anything; all subsequent\n * invocations do nothing.\n */\n static onExistenceFilterMismatch(\n callback: ExistenceFilterMismatchCallback\n ): Unsubscribe {\n return TestingHooksSpiImpl.instance.onExistenceFilterMismatch(callback);\n }\n}\n\n/**\n * The signature of callbacks registered with\n * `TestingUtils.onExistenceFilterMismatch()`.\n *\n * The return value, if any, is ignored.\n *\n * @internal\n */\nexport type ExistenceFilterMismatchCallback = (\n info: ExistenceFilterMismatchInfo\n) => unknown;\n\n/**\n * The implementation of `TestingHooksSpi`.\n */\nclass TestingHooksSpiImpl implements TestingHooksSpi {\n private readonly existenceFilterMismatchCallbacksById = new Map<\n Symbol,\n ExistenceFilterMismatchCallback\n >();\n\n private constructor() {}\n\n static get instance(): TestingHooksSpiImpl {\n if (!testingHooksSpiImplInstance) {\n testingHooksSpiImplInstance = new TestingHooksSpiImpl();\n setTestingHooksSpi(testingHooksSpiImplInstance);\n }\n return testingHooksSpiImplInstance;\n }\n\n notifyOnExistenceFilterMismatch(info: ExistenceFilterMismatchInfo): void {\n this.existenceFilterMismatchCallbacksById.forEach(callback =>\n callback(info)\n );\n }\n\n onExistenceFilterMismatch(\n callback: ExistenceFilterMismatchCallback\n ): Unsubscribe {\n const id = Symbol();\n const callbacks = this.existenceFilterMismatchCallbacksById;\n callbacks.set(id, callback);\n return () => callbacks.delete(id);\n }\n}\n\nlet testingHooksSpiImplInstance: TestingHooksSpiImpl | null = null;\n","/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport {\n _registerComponent,\n registerVersion,\n SDK_VERSION\n} from '@firebase/app';\nimport { Component, ComponentType } from '@firebase/component';\n\nimport { name, version } from '../package.json';\nimport {\n FirebaseAppCheckTokenProvider,\n FirebaseAuthCredentialsProvider\n} from '../src/api/credentials';\nimport { setSDKVersion } from '../src/core/version';\n\nimport { Firestore } from './api/database';\nimport { databaseIdFromApp } from './core/database_info';\n\nexport function registerFirestore(\n variant?: string,\n useFetchStreams = true\n): void {\n setSDKVersion(SDK_VERSION);\n _registerComponent(\n new Component(\n 'firestore',\n (container, { instanceIdentifier: databaseId, options: settings }) => {\n const app = container.getProvider('app').getImmediate()!;\n const firestoreInstance = new Firestore(\n new FirebaseAuthCredentialsProvider(\n container.getProvider('auth-internal')\n ),\n new FirebaseAppCheckTokenProvider(\n app,\n container.getProvider('app-check-internal')\n ),\n databaseIdFromApp(app, databaseId),\n app\n );\n settings = { useFetchStreams, ...settings };\n firestoreInstance._setSettings(settings);\n return firestoreInstance;\n },\n 'PUBLIC' as ComponentType.PUBLIC\n ).setMultipleInstances(true)\n );\n registerVersion(name, version, variant);\n // BUILD_TARGET will be replaced by values like esm, cjs, etc during the compilation\n registerVersion(name, version, '__BUILD_TARGET__');\n}\n","/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nimport { registerFirestore } from './register';\n\nregisterFirestore('rn', /* useFetchStreams= */ false);\n\nexport * from 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