@firebase/firestore/dist/internal.d.ts

The Cloud Firestore component of the Firebase JS SDK.

/**
 * Cloud Firestore
 *
 * @packageDocumentation
 */

import { DocumentData as DocumentData_2 } from '@firebase/firestore-types';
import { EmulatorMockTokenOptions } from '@firebase/util';
import { FirebaseApp } from '@firebase/app';
import { FirebaseError } from '@firebase/util';
import { _FirebaseService } from '@firebase/app';
import { LogLevelString as LogLevel } from '@firebase/logger';
import { SetOptions as SetOptions_2 } from '@firebase/firestore-types';

/**
 * Converts Firestore's internal types to the JavaScript types that we expose
 * to the user.
 *
 * @internal
 */
export declare abstract class AbstractUserDataWriter {
    convertValue(value: Value, serverTimestampBehavior?: ServerTimestampBehavior): unknown;
    private convertObject;
    /**
     * @internal
     */
    convertObjectMap(fields: ApiClientObjectMap<Value> | undefined, serverTimestampBehavior?: ServerTimestampBehavior): DocumentData_2;
    /**
     * @internal
     */
    convertVectorValue(mapValue: MapValue): VectorValue;
    private convertGeoPoint;
    private convertArray;
    private convertServerTimestamp;
    private convertTimestamp;
    protected convertDocumentKey(name: string, expectedDatabaseId: _DatabaseId): _DocumentKey;
    protected abstract convertReference(name: string): unknown;
    protected abstract convertBytes(bytes: _ByteString): unknown;
}

/**
 * Describes a map whose keys are active target ids. We do not care about the type of the
 * values.
 */
declare type ActiveTargets = SortedMap<TargetId, unknown>;

/**
 * Add a new document to specified `CollectionReference` with the given data,
 * assigning it a document ID automatically.
 *
 * @param reference - A reference to the collection to add this document to.
 * @param data - An Object containing the data for the new document.
 * @returns A `Promise` resolved with a `DocumentReference` pointing to the
 * newly created document after it has been written to the backend (Note that it
 * won't resolve while you're offline).
 */
export declare function addDoc<AppModelType, DbModelType extends DocumentData>(reference: CollectionReference<AppModelType, DbModelType>, data: WithFieldValue<AppModelType>): Promise<DocumentReference<AppModelType, DbModelType>>;

/**
 * Returns a new map where every key is prefixed with the outer key appended
 * to a dot.
 */
export declare type AddPrefixToKeys<Prefix extends string, T extends Record<string, unknown>> = {
    [K in keyof T & string as `${Prefix}.${K}`]+?: string extends K ? any : T[K];
};

/**
 * Represents an aggregation that can be performed by Firestore.
 */
export declare class AggregateField<T> {
    readonly _internalFieldPath?: _FieldPath | undefined;
    /** A type string to uniquely identify instances of this class. */
    readonly type = "AggregateField";
    /** Indicates the aggregation operation of this AggregateField. */
    readonly aggregateType: AggregateType;
    /**
     * Create a new AggregateField<T>
     * @param aggregateType Specifies the type of aggregation operation to perform.
     * @param _internalFieldPath Optionally specifies the field that is aggregated.
     * @internal
     */
    constructor(aggregateType?: AggregateType, _internalFieldPath?: _FieldPath | undefined);
}

/**
 * Compares two 'AggregateField` instances for equality.
 *
 * @param left Compare this AggregateField to the `right`.
 * @param right Compare this AggregateField to the `left`.
 */
export declare function aggregateFieldEqual(left: AggregateField<unknown>, right: AggregateField<unknown>): boolean;

/**
 * The union of all `AggregateField` types that are supported by Firestore.
 */
export declare type AggregateFieldType = ReturnType<typeof sum> | ReturnType<typeof average> | ReturnType<typeof count>;

/**
 * The results of executing an aggregation query.
 */
export declare class AggregateQuerySnapshot<AggregateSpecType extends AggregateSpec, AppModelType = DocumentData, DbModelType extends DocumentData = DocumentData> {
    private readonly _userDataWriter;
    private readonly _data;
    /** A type string to uniquely identify instances of this class. */
    readonly type = "AggregateQuerySnapshot";
    /**
     * The underlying query over which the aggregations recorded in this
     * `AggregateQuerySnapshot` were performed.
     */
    readonly query: Query<AppModelType, DbModelType>;
    /** @hideconstructor */
    constructor(query: Query<AppModelType, DbModelType>, _userDataWriter: AbstractUserDataWriter, _data: ApiClientObjectMap<Value>);
    /**
     * Returns the results of the aggregations performed over the underlying
     * query.
     *
     * The keys of the returned object will be the same as those of the
     * `AggregateSpec` object specified to the aggregation method, and the values
     * will be the corresponding aggregation result.
     *
     * @returns The results of the aggregations performed over the underlying
     * query.
     */
    data(): AggregateSpecData<AggregateSpecType>;
}

/**
 * Compares two `AggregateQuerySnapshot` instances for equality.
 *
 * Two `AggregateQuerySnapshot` instances are considered "equal" if they have
 * underlying queries that compare equal, and the same data.
 *
 * @param left - The first `AggregateQuerySnapshot` to compare.
 * @param right - The second `AggregateQuerySnapshot` to compare.
 *
 * @returns `true` if the objects are "equal", as defined above, or `false`
 * otherwise.
 */
export declare function aggregateQuerySnapshotEqual<AggregateSpecType extends AggregateSpec, AppModelType, DbModelType extends DocumentData>(left: AggregateQuerySnapshot<AggregateSpecType, AppModelType, DbModelType>, right: AggregateQuerySnapshot<AggregateSpecType, AppModelType, DbModelType>): boolean;

/**
 * Specifies a set of aggregations and their aliases.
 */
export declare interface AggregateSpec {
    [field: string]: AggregateFieldType;
}

/**
 * A type whose keys are taken from an `AggregateSpec`, and whose values are the
 * result of the aggregation performed by the corresponding `AggregateField`
 * from the input `AggregateSpec`.
 */
export declare type AggregateSpecData<T extends AggregateSpec> = {
    [P in keyof T]: T[P] extends AggregateField<infer U> ? U : never;
};

/**
 * Union type representing the aggregate type to be performed.
 */
export declare type AggregateType = 'count' | 'avg' | 'sum';

/**
 * Creates a new {@link QueryCompositeFilterConstraint} that is a conjunction of
 * the given filter constraints. A conjunction filter includes a document if it
 * satisfies all of the given filters.
 *
 * @param queryConstraints - Optional. The list of
 * {@link QueryFilterConstraint}s to perform a conjunction for. These must be
 * created with calls to {@link where}, {@link or}, or {@link and}.
 * @returns The newly created {@link QueryCompositeFilterConstraint}.
 */
export declare function and(...queryConstraints: QueryFilterConstraint[]): QueryCompositeFilterConstraint;

declare interface ApiClientObjectMap<T> {
    [k: string]: T;
}

/**
 * An `AppliableConstraint` is an abstraction of a constraint that can be applied
 * to a Firestore query.
 */
declare abstract class AppliableConstraint {
    /**
     * Takes the provided {@link Query} and returns a copy of the {@link Query} with this
     * {@link AppliableConstraint} applied.
     */
    abstract _apply<AppModelType, DbModelType extends DocumentData>(query: Query<AppModelType, DbModelType>): Query<AppModelType, DbModelType>;
}

/**
 * Returns a special value that can be used with {@link (setDoc:1)} or {@link
 * updateDoc:1} that tells the server to remove the given elements from any
 * array value that already exists on the server. All instances of each element
 * specified will be removed from the array. If the field being modified is not
 * already an array it will be overwritten with an empty array.
 *
 * @param elements - The elements to remove from the array.
 * @returns The `FieldValue` sentinel for use in a call to `setDoc()` or
 * `updateDoc()`
 */
export declare function arrayRemove(...elements: unknown[]): FieldValue;

/**
 * Returns a special value that can be used with {@link @firebase/firestore/lite#(setDoc:1)} or {@link
 * @firebase/firestore/lite#(updateDoc:1)} that tells the server to union the given elements with any array
 * value that already exists on the server. Each specified element that doesn't
 * already exist in the array will be added to the end. If the field being
 * modified is not already an array it will be overwritten with an array
 * containing exactly the specified elements.
 *
 * @param elements - The elements to union into the array.
 * @returns The `FieldValue` sentinel for use in a call to `setDoc()` or
 * `updateDoc()`.
 */
export declare function arrayUnion(...elements: unknown[]): FieldValue;

declare interface AsyncQueue {
    readonly isShuttingDown: boolean;
    /**
     * Adds a new operation to the queue without waiting for it to complete (i.e.
     * we ignore the Promise result).
     */
    enqueueAndForget<T extends unknown>(op: () => Promise<T>): void;
    /**
     * Regardless if the queue has initialized shutdown, adds a new operation to the
     * queue without waiting for it to complete (i.e. we ignore the Promise result).
     */
    enqueueAndForgetEvenWhileRestricted<T extends unknown>(op: () => Promise<T>): void;
    /**
     * Initialize the shutdown of this queue. Once this method is called, the
     * only possible way to request running an operation is through
     * `enqueueEvenWhileRestricted()`.
     *
     * @param purgeExistingTasks Whether already enqueued tasked should be
     * rejected (unless enqueued with `enqueueEvenWhileRestricted()`). Defaults
     * to false.
     */
    enterRestrictedMode(purgeExistingTasks?: boolean): void;
    /**
     * Adds a new operation to the queue. Returns a promise that will be resolved
     * when the promise returned by the new operation is (with its value).
     */
    enqueue<T extends unknown>(op: () => Promise<T>): Promise<T>;
    /**
     * Enqueue a retryable operation.
     *
     * A retryable operation is rescheduled with backoff if it fails with a
     * IndexedDbTransactionError (the error type used by SimpleDb). All
     * retryable operations are executed in order and only run if all prior
     * operations were retried successfully.
     */
    enqueueRetryable(op: () => Promise<void>): void;
    /**
     * Schedules an operation to be queued on the AsyncQueue once the specified
     * `delayMs` has elapsed. The returned DelayedOperation can be used to cancel
     * or fast-forward the operation prior to its running.
     */
    enqueueAfterDelay<T extends unknown>(timerId: TimerId, delayMs: number, op: () => Promise<T>): DelayedOperation<T>;
    /**
     * Verifies there's an operation currently in-progress on the AsyncQueue.
     * Unfortunately we can't verify that the running code is in the promise chain
     * of that operation, so this isn't a foolproof check, but it should be enough
     * to catch some bugs.
     */
    verifyOperationInProgress(): void;
}

/**
 * @internal
 */
export declare type AuthTokenFactory = () => string;

/**
 * A utility class for generating unique alphanumeric IDs of a specified length.
 *
 * @internal
 * Exported internally for testing purposes.
 */
export declare class _AutoId {
    static newId(): string;
}

/**
 * Create an AggregateField object that can be used to compute the average of
 * a specified field over a range of documents in the result set of a query.
 * @param field Specifies the field to average across the result set.
 */
export declare function average(field: string | FieldPath): AggregateField<number | null>;

/**
 * Path represents an ordered sequence of string segments.
 */
declare abstract class BasePath<B extends BasePath<B>> {
    private segments;
    private offset;
    private len;
    constructor(segments: string[], offset?: number, length?: number);
    /**
     * Abstract constructor method to construct an instance of B with the given
     * parameters.
     */
    protected abstract construct(segments: string[], offset?: number, length?: number): B;
    /**
     * Returns a String representation.
     *
     * Implementing classes are required to provide deterministic implementations as
     * the String representation is used to obtain canonical Query IDs.
     */
    abstract toString(): string;
    get length(): number;
    isEqual(other: B): boolean;
    child(nameOrPath: string | B): B;
    /** The index of one past the last segment of the path. */
    private limit;
    popFirst(size?: number): B;
    popLast(): B;
    firstSegment(): string;
    lastSegment(): string;
    get(index: number): string;
    isEmpty(): boolean;
    isPrefixOf(other: this): boolean;
    isImmediateParentOf(potentialChild: this): boolean;
    forEach(fn: (segment: string) => void): void;
    toArray(): string[];
    /**
     * Compare 2 paths segment by segment, prioritizing numeric IDs
     * (e.g., "__id123__") in numeric ascending order, followed by string
     * segments in lexicographical order.
     */
    static comparator<T extends BasePath<T>>(p1: BasePath<T>, p2: BasePath<T>): number;
    private static compareSegments;
    private static isNumericId;
    private static extractNumericId;
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * BatchID is a locally assigned ID for a batch of mutations that have been
 * applied.
 */
declare type BatchId = number;

/**
 * Represents a bound of a query.
 *
 * The bound is specified with the given components representing a position and
 * whether it's just before or just after the position (relative to whatever the
 * query order is).
 *
 * The position represents a logical index position for a query. It's a prefix
 * of values for the (potentially implicit) order by clauses of a query.
 *
 * Bound provides a function to determine whether a document comes before or
 * after a bound. This is influenced by whether the position is just before or
 * just after the provided values.
 */
declare class Bound {
    readonly position: Value[];
    readonly inclusive: boolean;
    constructor(position: Value[], inclusive: boolean);
}

/**
 * Provides interfaces to save and read Firestore bundles.
 */
declare interface BundleCache {
    /**
     * Gets the saved `BundleMetadata` for a given `bundleId`, returns undefined
     * if no bundle metadata is found under the given id.
     */
    getBundleMetadata(transaction: PersistenceTransaction, bundleId: string): PersistencePromise<BundleMetadata | undefined>;
    /**
     * Saves a `BundleMetadata` from a bundle into local storage, using its id as
     * the persistent key.
     */
    saveBundleMetadata(transaction: PersistenceTransaction, metadata: BundleMetadata_2): PersistencePromise<void>;
    /**
     * Gets a saved `NamedQuery` for the given query name. Returns undefined if
     * no queries are found under the given name.
     */
    getNamedQuery(transaction: PersistenceTransaction, queryName: string): PersistencePromise<NamedQuery | undefined>;
    /**
     * Saves a `NamedQuery` from a bundle, using its name as the persistent key.
     */
    saveNamedQuery(transaction: PersistenceTransaction, query: NamedQuery_2): PersistencePromise<void>;
}

/** Properties of a BundledQuery. */
declare interface BundledQuery {
    /** BundledQuery parent */
    parent?: string | null;
    /** BundledQuery structuredQuery */
    structuredQuery?: StructuredQuery | null;
    /** BundledQuery limitType */
    limitType?: LimitType_2 | null;
}

/**
 * Represents a Firestore bundle saved by the SDK in its local storage.
 */
declare interface BundleMetadata {
    /**
     * Id of the bundle. It is used together with `createTime` to determine if a
     * bundle has been loaded by the SDK.
     */
    readonly id: string;
    /** Schema version of the bundle. */
    readonly version: number;
    /**
     * Set to the snapshot version of the bundle if created by the Server SDKs.
     * Otherwise set to SnapshotVersion.MIN.
     */
    readonly createTime: SnapshotVersion;
}

/** Properties of a BundleMetadata. */
declare interface BundleMetadata_2 {
    /** BundleMetadata id */
    id?: string | null;
    /** BundleMetadata createTime */
    createTime?: Timestamp_2 | null;
    /** BundleMetadata version */
    version?: number | null;
    /** BundleMetadata totalDocuments */
    totalDocuments?: number | null;
    /** BundleMetadata totalBytes */
    totalBytes?: number | null;
}

/**
 * An immutable object representing an array of bytes.
 */
export declare class Bytes {
    _byteString: _ByteString;
    /** @hideconstructor */
    constructor(byteString: _ByteString);
    /**
     * Creates a new `Bytes` object from the given Base64 string, converting it to
     * bytes.
     *
     * @param base64 - The Base64 string used to create the `Bytes` object.
     */
    static fromBase64String(base64: string): Bytes;
    /**
     * Creates a new `Bytes` object from the given Uint8Array.
     *
     * @param array - The Uint8Array used to create the `Bytes` object.
     */
    static fromUint8Array(array: Uint8Array): Bytes;
    /**
     * Returns the underlying bytes as a Base64-encoded string.
     *
     * @returns The Base64-encoded string created from the `Bytes` object.
     */
    toBase64(): string;
    /**
     * Returns the underlying bytes in a new `Uint8Array`.
     *
     * @returns The Uint8Array created from the `Bytes` object.
     */
    toUint8Array(): Uint8Array;
    /**
     * Returns a string representation of the `Bytes` object.
     *
     * @returns A string representation of the `Bytes` object.
     */
    toString(): string;
    /**
     * Returns true if this `Bytes` object is equal to the provided one.
     *
     * @param other - The `Bytes` object to compare against.
     * @returns true if this `Bytes` object is equal to the provided one.
     */
    isEqual(other: Bytes): boolean;
}

/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Immutable class that represents a "proto" byte string.
 *
 * Proto byte strings can either be Base64-encoded strings or Uint8Arrays when
 * sent on the wire. This class abstracts away this differentiation by holding
 * the proto byte string in a common class that must be converted into a string
 * before being sent as a proto.
 * @internal
 */
export declare class _ByteString {
    private readonly binaryString;
    static readonly EMPTY_BYTE_STRING: _ByteString;
    private constructor();
    static fromBase64String(base64: string): _ByteString;
    static fromUint8Array(array: Uint8Array): _ByteString;
    [Symbol.iterator](): Iterator<number>;
    toBase64(): string;
    toUint8Array(): Uint8Array;
    approximateByteSize(): number;
    compareTo(other: _ByteString): number;
    isEqual(other: _ByteString): boolean;
}

/**
 * Constant used to indicate the LRU garbage collection should be disabled.
 * Set this value as the `cacheSizeBytes` on the settings passed to the
 * {@link Firestore} instance.
 */
export declare const CACHE_SIZE_UNLIMITED = -1;

/**
 * Casts `obj` to `T`, optionally unwrapping Compat types to expose the
 * underlying instance. Throws if  `obj` is not an instance of `T`.
 *
 * This cast is used in the Lite and Full SDK to verify instance types for
 * arguments passed to the public API.
 * @internal
 */
export declare function _cast<T>(obj: object, constructor: {
    new (...args: any[]): T;
}): T | never;

declare const enum ChangeType {
    Added = 0,
    Removed = 1,
    Modified = 2,
    Metadata = 3
}

/**
 * Helper for calculating the nested fields for a given type T1. This is needed
 * to distribute union types such as `undefined | {...}` (happens for optional
 * props) or `{a: A} | {b: B}`.
 *
 * In this use case, `V` is used to distribute the union types of `T[K]` on
 * `Record`, since `T[K]` is evaluated as an expression and not distributed.
 *
 * See https://www.typescriptlang.org/docs/handbook/advanced-types.html#distributive-conditional-types
 */
export declare type ChildUpdateFields<K extends string, V> = V extends Record<string, unknown> ? AddPrefixToKeys<K, UpdateData<V>> : never;

/**
 * Clears the persistent storage. This includes pending writes and cached
 * documents.
 *
 * Must be called while the {@link Firestore} instance is not started (after the app is
 * terminated or when the app is first initialized). On startup, this function
 * must be called before other functions (other than {@link
 * initializeFirestore} or {@link (getFirestore:1)})). If the {@link Firestore}
 * instance is still running, the promise will be rejected with the error code
 * of `failed-precondition`.
 *
 * Note: `clearIndexedDbPersistence()` is primarily intended to help write
 * reliable tests that use Cloud Firestore. It uses an efficient mechanism for
 * dropping existing data but does not attempt to securely overwrite or
 * otherwise make cached data unrecoverable. For applications that are sensitive
 * to the disclosure of cached data in between user sessions, we strongly
 * recommend not enabling persistence at all.
 *
 * @param firestore - The {@link Firestore} instance to clear persistence for.
 * @returns A `Promise` that is resolved when the persistent storage is
 * cleared. Otherwise, the promise is rejected with an error.
 */
export declare function clearIndexedDbPersistence(firestore: Firestore): Promise<void>;

/**
 * A randomly-generated key assigned to each Firestore instance at startup.
 */
declare type ClientId = string;

/**
 * Gets a `CollectionReference` instance that refers to the collection at
 * the specified absolute path.
 *
 * @param firestore - A reference to the root `Firestore` instance.
 * @param path - A slash-separated path to a collection.
 * @param pathSegments - Additional path segments to apply relative to the first
 * argument.
 * @throws If the final path has an even number of segments and does not point
 * to a collection.
 * @returns The `CollectionReference` instance.
 */
export declare function collection(firestore: Firestore_2, path: string, ...pathSegments: string[]): CollectionReference<DocumentData, DocumentData>;

/**
 * Gets a `CollectionReference` instance that refers to a subcollection of
 * `reference` at the specified relative path.
 *
 * @param reference - A reference to a collection.
 * @param path - A slash-separated path to a collection.
 * @param pathSegments - Additional path segments to apply relative to the first
 * argument.
 * @throws If the final path has an even number of segments and does not point
 * to a collection.
 * @returns The `CollectionReference` instance.
 */
export declare function collection<AppModelType, DbModelType extends DocumentData>(reference: CollectionReference<AppModelType, DbModelType>, path: string, ...pathSegments: string[]): CollectionReference<DocumentData, DocumentData>;

/**
 * Gets a `CollectionReference` instance that refers to a subcollection of
 * `reference` at the specified relative path.
 *
 * @param reference - A reference to a Firestore document.
 * @param path - A slash-separated path to a collection.
 * @param pathSegments - Additional path segments that will be applied relative
 * to the first argument.
 * @throws If the final path has an even number of segments and does not point
 * to a collection.
 * @returns The `CollectionReference` instance.
 */
export declare function collection<AppModelType, DbModelType extends DocumentData>(reference: DocumentReference<AppModelType, DbModelType>, path: string, ...pathSegments: string[]): CollectionReference<DocumentData, DocumentData>;

/**
 * Creates and returns a new `Query` instance that includes all documents in the
 * database that are contained in a collection or subcollection with the
 * given `collectionId`.
 *
 * @param firestore - A reference to the root `Firestore` instance.
 * @param collectionId - Identifies the collections to query over. Every
 * collection or subcollection with this ID as the last segment of its path
 * will be included. Cannot contain a slash.
 * @returns The created `Query`.
 */
export declare function collectionGroup(firestore: Firestore_2, collectionId: string): Query<DocumentData, DocumentData>;

/**
 * A `CollectionReference` object can be used for adding documents, getting
 * document references, and querying for documents (using {@link (query:1)}).
 */
export declare class CollectionReference<AppModelType = DocumentData, DbModelType extends DocumentData = DocumentData> extends Query<AppModelType, DbModelType> {
    readonly _path: _ResourcePath;
    /** The type of this Firestore reference. */
    readonly type = "collection";
    /** @hideconstructor */
    constructor(firestore: Firestore_2, converter: FirestoreDataConverter_2<AppModelType, DbModelType> | null, _path: _ResourcePath);
    /** The collection's identifier. */
    get id(): string;
    /**
     * A string representing the path of the referenced collection (relative
     * to the root of the database).
     */
    get path(): string;
    /**
     * A reference to the containing `DocumentReference` if this is a
     * subcollection. If this isn't a subcollection, the reference is null.
     */
    get parent(): DocumentReference<DocumentData, DocumentData> | null;
    /**
     * Applies a custom data converter to this `CollectionReference`, allowing you
     * to use your own custom model objects with Firestore. When you call {@link
     * addDoc} with the returned `CollectionReference` instance, the provided
     * converter will convert between Firestore data of type `NewDbModelType` and
     * your custom type `NewAppModelType`.
     *
     * @param converter - Converts objects to and from Firestore.
     * @returns A `CollectionReference` that uses the provided converter.
     */
    withConverter<NewAppModelType, NewDbModelType extends DocumentData = DocumentData>(converter: FirestoreDataConverter_2<NewAppModelType, NewDbModelType>): CollectionReference<NewAppModelType, NewDbModelType>;
    /**
     * Removes the current converter.
     *
     * @param converter - `null` removes the current converter.
     * @returns A `CollectionReference<DocumentData, DocumentData>` that does not
     * use a converter.
     */
    withConverter(converter: null): CollectionReference<DocumentData, DocumentData>;
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
declare type Comparator<K> = (key1: K, key2: K) => number;

declare interface ComponentConfiguration {
    asyncQueue: AsyncQueue;
    databaseInfo: DatabaseInfo;
    authCredentials: CredentialsProvider<User>;
    appCheckCredentials: CredentialsProvider<string>;
    clientId: ClientId;
    initialUser: User;
    maxConcurrentLimboResolutions: number;
}

declare type CompositeFilterOp = 'OPERATOR_UNSPECIFIED' | 'AND' | 'OR';

declare const enum CompositeOperator {
    OR = "or",
    AND = "and"
}

/**
 * Modify this instance to communicate with the Cloud Firestore emulator.
 *
 * Note: This must be called before this instance has been used to do any
 * operations.
 *
 * @param firestore - The `Firestore` instance to configure to connect to the
 * emulator.
 * @param host - the emulator host (ex: localhost).
 * @param port - the emulator port (ex: 9000).
 * @param options.mockUserToken - the mock auth token to use for unit testing
 * Security Rules.
 */
export declare function connectFirestoreEmulator(firestore: Firestore_2, host: string, port: number, options?: {
    mockUserToken?: EmulatorMockTokenOptions | string;
}): void;

/**
 * Create an AggregateField object that can be used to compute the count of
 * documents in the result set of a query.
 */
export declare function count(): AggregateField<number>;

/**
 * A Listener for credential change events. The listener should fetch a new
 * token and may need to invalidate other state if the current user has also
 * changed.
 */
declare type CredentialChangeListener<T> = (credential: T) => Promise<void>;

/**
 * Provides methods for getting the uid and token for the current user and
 * listening for changes.
 */
declare interface CredentialsProvider<T> {
    /**
     * Starts the credentials provider and specifies a listener to be notified of
     * credential changes (sign-in / sign-out, token changes). It is immediately
     * called once with the initial user.
     *
     * The change listener is invoked on the provided AsyncQueue.
     */
    start(asyncQueue: AsyncQueue, changeListener: CredentialChangeListener<T>): void;
    /** Requests a token for the current user. */
    getToken(): Promise<Token | null>;
    /**
     * Marks the last retrieved token as invalid, making the next GetToken request
     * force-refresh the token.
     */
    invalidateToken(): void;
    shutdown(): void;
}

/** Settings for private credentials */
declare type CredentialsSettings = FirstPartyCredentialsSettings | ProviderCredentialsSettings;

/**
 * Represents the database ID a Firestore client is associated with.
 * @internal
 */
export declare class _DatabaseId {
    readonly projectId: string;
    readonly database: string;
    constructor(projectId: string, database?: string);
    static empty(): _DatabaseId;
    get isDefaultDatabase(): boolean;
    isEqual(other: {}): boolean;
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
declare class DatabaseInfo {
    readonly databaseId: _DatabaseId;
    readonly appId: string;
    readonly persistenceKey: string;
    readonly host: string;
    readonly ssl: boolean;
    readonly forceLongPolling: boolean;
    readonly autoDetectLongPolling: boolean;
    readonly longPollingOptions: ExperimentalLongPollingOptions;
    readonly useFetchStreams: boolean;
    readonly isUsingEmulator: boolean;
    /**
     * Constructs a DatabaseInfo using the provided host, databaseId and
     * persistenceKey.
     *
     * @param databaseId - The database to use.
     * @param appId - The Firebase App Id.
     * @param persistenceKey - A unique identifier for this Firestore's local
     * storage (used in conjunction with the databaseId).
     * @param host - The Firestore backend host to connect to.
     * @param ssl - Whether to use SSL when connecting.
     * @param forceLongPolling - Whether to use the forceLongPolling option
     * when using WebChannel as the network transport.
     * @param autoDetectLongPolling - Whether to use the detectBufferingProxy
     * option when using WebChannel as the network transport.
     * @param longPollingOptions Options that configure long-polling.
     * @param useFetchStreams Whether to use the Fetch API instead of
     * XMLHTTPRequest
     */
    constructor(databaseId: _DatabaseId, appId: string, persistenceKey: string, host: string, ssl: boolean, forceLongPolling: boolean, autoDetectLongPolling: boolean, longPollingOptions: ExperimentalLongPollingOptions, useFetchStreams: boolean, isUsingEmulator: boolean);
}

/**
 * Datastore and its related methods are a wrapper around the external Google
 * Cloud Datastore grpc API, which provides an interface that is more convenient
 * for the rest of the client SDK architecture to consume.
 */
declare abstract class Datastore {
    abstract terminate(): void;
    abstract serializer: JsonProtoSerializer;
}

/**
 * Fails if the given assertion condition is false, throwing an Error with the
 * given message if it did.
 *
 * The code of callsites invoking this function are stripped out in production
 * builds. Any side-effects of code within the debugAssert() invocation will not
 * happen in this case.
 *
 * @internal
 */
export declare function _debugAssert(assertion: boolean, message: string): asserts assertion;

/**
 * Represents an operation scheduled to be run in the future on an AsyncQueue.
 *
 * It is created via DelayedOperation.createAndSchedule().
 *
 * Supports cancellation (via cancel()) and early execution (via skipDelay()).
 *
 * Note: We implement `PromiseLike` instead of `Promise`, as the `Promise` type
 * in newer versions of TypeScript defines `finally`, which is not available in
 * IE.
 */
declare class DelayedOperation<T extends unknown> implements PromiseLike<T> {
    private readonly asyncQueue;
    readonly timerId: TimerId;
    readonly targetTimeMs: number;
    private readonly op;
    private readonly removalCallback;
    private timerHandle;
    private readonly deferred;
    private constructor();
    get promise(): Promise<T>;
    /**
     * Creates and returns a DelayedOperation that has been scheduled to be
     * executed on the provided asyncQueue after the provided delayMs.
     *
     * @param asyncQueue - The queue to schedule the operation on.
     * @param id - A Timer ID identifying the type of operation this is.
     * @param delayMs - The delay (ms) before the operation should be scheduled.
     * @param op - The operation to run.
     * @param removalCallback - A callback to be called synchronously once the
     *   operation is executed or canceled, notifying the AsyncQueue to remove it
     *   from its delayedOperations list.
     *   PORTING NOTE: This exists to prevent making removeDelayedOperation() and
     *   the DelayedOperation class public.
     */
    static createAndSchedule<R extends unknown>(asyncQueue: AsyncQueue, timerId: TimerId, delayMs: number, op: () => Promise<R>, removalCallback: (op: DelayedOperation<R>) => void): DelayedOperation<R>;
    /**
     * Starts the timer. This is called immediately after construction by
     * createAndSchedule().
     */
    private start;
    /**
     * Queues the operation to run immediately (if it hasn't already been run or
     * canceled).
     */
    skipDelay(): void;
    /**
     * Cancels the operation if it hasn't already been executed or canceled. The
     * promise will be rejected.
     *
     * As long as the operation has not yet been run, calling cancel() provides a
     * guarantee that the operation will not be run.
     */
    cancel(reason?: string): void;
    then: <TResult1 = T, TResult2 = never>(onfulfilled?: ((value: T) => TResult1 | PromiseLike<TResult1>) | null | undefined, onrejected?: ((reason: any) => TResult2 | PromiseLike<TResult2>) | null | undefined) => Promise<TResult1 | TResult2>;
    private handleDelayElapsed;
    private clearTimeout;
}

/**
 * Removes all persistent cache indexes.
 *
 * Please note this function will also deletes indexes generated by
 * `setIndexConfiguration()`, which is deprecated.
 */
export declare function deleteAllPersistentCacheIndexes(indexManager: PersistentCacheIndexManager): void;

/**
 * Deletes the document referred to by the specified `DocumentReference`.
 *
 * @param reference - A reference to the document to delete.
 * @returns A Promise resolved once the document has been successfully
 * deleted from the backend (note that it won't resolve while you're offline).
 */
export declare function deleteDoc<AppModelType, DbModelType extends DocumentData>(reference: DocumentReference<AppModelType, DbModelType>): Promise<void>;

/**
 * Returns a sentinel for use with {@link @firebase/firestore/lite#(updateDoc:1)} or
 * {@link @firebase/firestore/lite#(setDoc:1)} with `{merge: true}` to mark a field for deletion.
 */
export declare function deleteField(): FieldValue;

/**
 * The direction of sorting in an order by.
 */
declare const enum Direction {
    ASCENDING = "asc",
    DESCENDING = "desc"
}

/**
 * Disables network usage for this instance. It can be re-enabled via {@link
 * enableNetwork}. While the network is disabled, any snapshot listeners,
 * `getDoc()` or `getDocs()` calls will return results from cache, and any write
 * operations will be queued until the network is restored.
 *
 * @returns A `Promise` that is resolved once the network has been disabled.
 */
export declare function disableNetwork(firestore: Firestore): Promise<void>;

/**
 * Stops creating persistent cache indexes automatically for local query
 * execution. The indexes which have been created by calling
 * `enablePersistentCacheIndexAutoCreation()` still take effect.
 */
export declare function disablePersistentCacheIndexAutoCreation(indexManager: PersistentCacheIndexManager): void;

/**
 * Gets a `DocumentReference` instance that refers to the document at the
 * specified absolute path.
 *
 * @param firestore - A reference to the root `Firestore` instance.
 * @param path - A slash-separated path to a document.
 * @param pathSegments - Additional path segments that will be applied relative
 * to the first argument.
 * @throws If the final path has an odd number of segments and does not point to
 * a document.
 * @returns The `DocumentReference` instance.
 */
export declare function doc(firestore: Firestore_2, path: string, ...pathSegments: string[]): DocumentReference<DocumentData, DocumentData>;

/**
 * Gets a `DocumentReference` instance that refers to a document within
 * `reference` at the specified relative path. If no path is specified, an
 * automatically-generated unique ID will be used for the returned
 * `DocumentReference`.
 *
 * @param reference - A reference to a collection.
 * @param path - A slash-separated path to a document. Has to be omitted to use
 * auto-generated IDs.
 * @param pathSegments - Additional path segments that will be applied relative
 * to the first argument.
 * @throws If the final path has an odd number of segments and does not point to
 * a document.
 * @returns The `DocumentReference` instance.
 */
export declare function doc<AppModelType, DbModelType extends DocumentData>(reference: CollectionReference<AppModelType, DbModelType>, path?: string, ...pathSegments: string[]): DocumentReference<AppModelType, DbModelType>;

/**
 * Gets a `DocumentReference` instance that refers to a document within
 * `reference` at the specified relative path.
 *
 * @param reference - A reference to a Firestore document.
 * @param path - A slash-separated path to a document.
 * @param pathSegments - Additional path segments that will be applied relative
 * to the first argument.
 * @throws If the final path has an odd number of segments and does not point to
 * a document.
 * @returns The `DocumentReference` instance.
 */
export declare function doc<AppModelType, DbModelType extends DocumentData>(reference: DocumentReference<AppModelType, DbModelType>, path: string, ...pathSegments: string[]): DocumentReference<DocumentData, DocumentData>;

/**
 * Represents a document in Firestore with a key, version, data and whether the
 * data has local mutations applied to it.
 */
declare interface Document_2 {
    /** The key for this document */
    readonly key: _DocumentKey;
    /**
     * The version of this document if it exists or a version at which this
     * document was guaranteed to not exist.
     */
    readonly version: SnapshotVersion;
    /**
     * The timestamp at which this document was read from the remote server. Uses
     * `SnapshotVersion.min()` for documents created by the user.
     */
    readonly readTime: SnapshotVersion;
    /**
     * The timestamp at which the document was created. This value increases
     * monotonically when a document is deleted then recreated. It can also be
     * compared to `createTime` of other documents and the `readTime` of a query.
     */
    readonly createTime: SnapshotVersion;
    /** The underlying data of this document or an empty value if no data exists. */
    readonly data: ObjectValue;
    /** Returns whether local mutations were applied via the mutation queue. */
    readonly hasLocalMutations: boolean;
    /** Returns whether mutations were applied based on a write acknowledgment. */
    readonly hasCommittedMutations: boolean;
    /**
     * Whether this document had a local mutation applied that has not yet been
     * acknowledged by Watch.
     */
    readonly hasPendingWrites: boolean;
    /**
     * Returns whether this document is valid (i.e. it is an entry in the
     * RemoteDocumentCache, was created by a mutation or read from the backend).
     */
    isValidDocument(): boolean;
    /**
     * Returns whether the document exists and its data is known at the current
     * version.
     */
    isFoundDocument(): boolean;
    /**
     * Returns whether the document is known to not exist at the current version.
     */
    isNoDocument(): boolean;
    /**
     * Returns whether the document exists and its data is unknown at the current
     * version.
     */
    isUnknownDocument(): boolean;
    isEqual(other: Document_2 | null | undefined): boolean;
    /** Creates a mutable copy of this document. */
    mutableCopy(): MutableDocument;
    toString(): string;
}

/**
 * A `DocumentChange` represents a change to the documents matching a query.
 * It contains the document affected and the type of change that occurred.
 */
export declare interface DocumentChange<AppModelType = DocumentData, DbModelType extends DocumentData = DocumentData> {
    /** The type of change ('added', 'modified', or 'removed'). */
    readonly type: DocumentChangeType;
    /** The document affected by this change. */
    readonly doc: QueryDocumentSnapshot<AppModelType, DbModelType>;
    /**
     * The index of the changed document in the result set immediately prior to
     * this `DocumentChange` (i.e. supposing that all prior `DocumentChange` objects
     * have been applied). Is `-1` for 'added' events.
     */
    readonly oldIndex: number;
    /**
     * The index of the changed document in the result set immediately after
     * this `DocumentChange` (i.e. supposing that all prior `DocumentChange`
     * objects and the current `DocumentChange` object have been applied).
     * Is -1 for 'removed' events.
     */
    readonly newIndex: number;
}

/**
 * The type of a `DocumentChange` may be 'added', 'removed', or 'modified'.
 */
export declare type DocumentChangeType = 'added' | 'removed' | 'modified';

declare type DocumentComparator = (doc1: Document_2, doc2: Document_2) => number;

/**
 * Document data (for use with {@link @firebase/firestore/lite#(setDoc:1)}) consists of fields mapped to
 * values.
 */
export declare interface DocumentData {
    /** A mapping between a field and its value. */
    [field: string]: any;
}

/**
 * Returns a special sentinel `FieldPath` to refer to the ID of a document.
 * It can be used in queries to sort or filter by the document ID.
 */
export declare function documentId(): FieldPath;

/**
 * @internal
 */
export declare class _DocumentKey {
    readonly path: _ResourcePath;
    constructor(path: _ResourcePath);
    static fromPath(path: string): _DocumentKey;
    static fromName(name: string): _DocumentKey;
    static empty(): _DocumentKey;
    get collectionGroup(): string;
    /** Returns true if the document is in the specified collectionId. */
    hasCollectionId(collectionId: string): boolean;
    /** Returns the collection group (i.e. the name of the parent collection) for this key. */
    getCollectionGroup(): string;
    /** Returns the fully qualified path to the parent collection. */
    getCollectionPath(): _ResourcePath;
    isEqual(other: _DocumentKey | null): boolean;
    toString(): string;
    static comparator(k1: _DocumentKey, k2: _DocumentKey): number;
    static isDocumentKey(path: _ResourcePath): boolean;
    /**
     * Creates and returns a new document key with the given segments.
     *
     * @param segments - The segments of the path to the document
     * @returns A new instance of DocumentKey
     */
    static fromSegments(segments: string[]): _DocumentKey;
}

declare type DocumentKeyMap<T> = ObjectMap<_DocumentKey, T>;

declare type DocumentKeySet = SortedSet<_DocumentKey>;

declare type DocumentMap = SortedMap<_DocumentKey, Document_2>;

/**
 * Provides methods to read and write document overlays.
 *
 * An overlay is a saved mutation, that gives a local view of a document when
 * applied to the remote version of the document.
 *
 * Each overlay stores the largest batch ID that is included in the overlay,
 * which allows us to remove the overlay once all batches leading up to it have
 * been acknowledged.
 */
declare interface DocumentOverlayCache {
    /**
     * Gets the saved overlay mutation for the given document key.
     * Returns null if there is no overlay for that key.
     */
    getOverlay(transaction: PersistenceTransaction, key: _DocumentKey): PersistencePromise<Overlay | null>;
    /**
     * Gets the saved overlay mutation for the given document keys. Skips keys for
     * which there are no overlays.
     */
    getOverlays(transaction: PersistenceTransaction, keys: _DocumentKey[]): PersistencePromise<OverlayMap>;
    /**
     * Saves the given document mutation map to persistence as overlays.
     * All overlays will have their largest batch id set to `largestBatchId`.
     */
    saveOverlays(transaction: PersistenceTransaction, largestBatchId: number, overlays: MutationMap): PersistencePromise<void>;
    /** Removes overlays for the given document keys and batch ID. */
    removeOverlaysForBatchId(transaction: PersistenceTransaction, documentKeys: DocumentKeySet, batchId: number): PersistencePromise<void>;
    /**
     * Returns all saved overlays for the given collection.
     *
     * @param transaction - The persistence transaction to use for this operation.
     * @param collection - The collection path to get the overlays for.
     * @param sinceBatchId - The minimum batch ID to filter by (exclusive).
     * Only overlays that contain a change past `sinceBatchId` are returned.
     * @returns Mapping of each document key in the collection to its overlay.
     */
    getOverlaysForCollection(transaction: PersistenceTransaction, collection: _ResourcePath, sinceBatchId: number): PersistencePromise<OverlayMap>;
    /**
     * Returns `count` overlays with a batch ID higher than `sinceBatchId` for the
     * provided collection group, processed by ascending batch ID. The method
     * always returns all overlays for a batch even if the last batch contains
     * more documents than the remaining limit.
     *
     * @param transaction - The persistence transaction used for this operation.
     * @param collectionGroup - The collection group to get the overlays for.
     * @param sinceBatchId - The minimum batch ID to filter by (exclusive).
     * Only overlays that contain a change past `sinceBatchId` are returned.
     * @param count - The number of overlays to return. Can be exceeded if the last
     * batch contains more entries.
     * @return Mapping of each document key in the collection group to its overlay.
     */
    getOverlaysForCollectionGroup(transaction: PersistenceTransaction, collectionGroup: string, sinceBatchId: number, count: number): PersistencePromise<OverlayMap>;
}

/**
 * A `DocumentReference` refers to a document location in a Firestore database
 * and can be used to write, read, or listen to the location. The document at
 * the referenced location may or may not exist.
 */
export declare class DocumentReference<AppModelType = DocumentData, DbModelType extends DocumentData = DocumentData> {
    /**
     * If provided, the `FirestoreDataConverter` associated with this instance.
     */
    readonly converter: FirestoreDataConverter_2<AppModelType, DbModelType> | null;
    readonly _key: _DocumentKey;
    /** The type of this Firestore reference. */
    readonly type = "document";
    /**
     * The {@link Firestore} instance the document is in.
     * This is useful for performing transactions, for example.
     */
    readonly firestore: Firestore_2;
    /** @hideconstructor */
    constructor(firestore: Firestore_2, 
    /**
     * If provided, the `FirestoreDataConverter` associated with this instance.
     */
    converter: FirestoreDataConve