import * as _firebase_firestore from '@firebase/firestore';
import { Firestore, SetOptions as SetOptions$1, DocumentData as DocumentData$1, Transaction as Transaction$1, QuerySnapshot as QuerySnapshot$1, DocumentChangeType } from '@angular/fire/firestore';
import { Observable } from 'rxjs';
import { FieldPath, WhereFilterOp, OrderByDirection, DocumentSnapshot, CollectionReference, DocumentData, Query, QuerySnapshot, DocumentReference, SetOptions, Transaction, WriteBatch, FieldValue } from '@firebase/firestore-types';
import * as i0 from '@angular/core';

type QueryWhere = [fieldPath: string | FieldPath, opStr: WhereFilterOp, value: unknown];
type QueryOrderBy = [fieldPath: string | FieldPath, directionStr?: OrderByDirection];
type QueryLeftJoin = [idField: string, collection: string, alias: string];
type QueryCursor = [snapshot: DocumentSnapshot<unknown>] | unknown[];
declare class QueryBuilder {
    private _where;
    private _orderBy;
    private _leftJoins;
    private _limit?;
    private _limitToLast?;
    private _startAt?;
    private _startAfter?;
    private _endAt?;
    private _endBefore?;
    get joins(): QueryLeftJoin[];
    where(...where: QueryWhere): this;
    orderBy(...orderBy: QueryOrderBy): this;
    leftJoin(...leftJoin: QueryLeftJoin): void;
    limit(limit: number): this;
    limitToLast(limitToLast: number): this;
    startAt(...startAt: QueryCursor): this;
    startAfter(...startAfter: QueryCursor): this;
    endAt(...endAt: QueryCursor): this;
    endBefore(...endBefore: QueryCursor): this;
    exec(ref: CollectionReference<DocumentData> | any, queryOps?: {
        [key: string]: any;
    }): Query<DocumentData> | any;
    private execQueryForCloud;
}

declare abstract class AbstractFirestoreApi {
    BATCH_MAX_WRITES: number;
    abstract collection<T = any>(path: string, qb?: QueryBuilder, maxAge?: number): Promise<T[]>;
    abstract collectionGroup<T = any>(collectionId: string, qb?: QueryBuilder, maxAge?: number): Promise<T[]>;
    abstract collectionSnapshot(path: string, qb?: QueryBuilder): Promise<QuerySnapshot<DocumentData>>;
    abstract doc<T = any>(path: string, maxAge?: number): Promise<T>;
    abstract docRef(docPath: string): DocumentReference<DocumentData>;
    abstract upsert(collection: string, data: {
        [key: string]: any;
    }, opts?: SetOptions): Promise<string>;
    abstract update(docPath: string, data: {
        [key: string]: any;
    }): Promise<void>;
    abstract delete(docPath: string): Promise<void>;
    abstract bulkUpsert(collection: string, data: DocumentData[] | {
        data: DocumentData;
        qb?: QueryBuilder;
    }, opts?: SetOptions): Promise<string[]>;
    abstract bulkDelete(collection: string, qb?: QueryBuilder): Promise<string[]>;
    abstract runTransaction(updateFunction: (transaction: Transaction) => Promise<unknown>): Promise<unknown>;
    abstract get batch(): WriteBatch;
    abstract get serverTimestamp(): FieldValue;
    abstract increment(n?: number): FieldValue;
    abstract createId(collection?: string): string;
    getValueFromSnapshot<T = any>(snapshot: DocumentSnapshot): T;
}

declare class FirestoreService extends AbstractFirestoreApi {
    private injector;
    private run;
    get firestore(): Firestore;
    private cache;
    collection<T = any>(path: string, qb?: QueryBuilder, maxAge?: number): Promise<T[]>;
    collectionGroup<T = any>(collectionId: string, qb?: QueryBuilder, maxAge?: number): Promise<T[]>;
    doc<T = any>(path: string, maxAge?: number): Promise<T>;
    docRef(path: string): any;
    upsert(collectionPath: string, data: {
        [key: string]: any;
    }, opts?: SetOptions$1): Promise<string>;
    update(docPath: string, data: {
        [key: string]: any;
    }): Promise<void>;
    delete(docPath: string): Promise<void>;
    bulkUpsert(path: string, data: DocumentData$1[] | {
        data: DocumentData$1;
        qb?: QueryBuilder;
    }, opts?: SetOptions$1): Promise<string[]>;
    bulkDelete(path: string, qb?: QueryBuilder, maxSize?: number): Promise<string[]>;
    /**
     * write batch
     */
    get batch(): any;
    /**
     * firestore timestamp
     */
    get serverTimestamp(): _firebase_firestore.FieldValue;
    /**
     * FieldValue increment
     */
    increment(n?: number): _firebase_firestore.FieldValue;
    /**
     * Returns a generated Firestore Document Id.
     */
    createId(colPath?: string): string;
    runTransaction(updateFunction: (transaction: Transaction$1 | any) => Promise<unknown>): Promise<unknown>;
    collectionValueChanges<T = any>(path: string, qb?: QueryBuilder): Observable<T[]>;
    collectionGroupValueChanges<T = any>(collectionId: string, qb?: QueryBuilder): Observable<T[]>;
    collectionSnapshot(path: string, qb?: QueryBuilder): Promise<QuerySnapshot$1<any> | any>;
    collectionSnapshotChanges<T = any>(path: string, qb?: QueryBuilder, events?: DocumentChangeType[]): Observable<T[]>;
    collectionGroupSnapshotChanges<T = any>(collectionId: string, qb?: QueryBuilder, events?: DocumentChangeType[]): Observable<T[]>;
    docValueChanges<T = any>(path: string): Observable<T>;
    /**
     * @experimental
     *
     * Cache collection data in memory
     */
    collectionWithCache<T = any>(path: string, qb?: QueryBuilder, maxAge?: number): Observable<T[]>;
    /**
     * @experimental
     *
     * Cache collectionGroup data in memory
     */
    collectionGroupWithCache<T = any>(collectionId: string, qb?: QueryBuilder, maxAge?: number): Observable<T[]>;
    /**
     * @experimental
     *
     * Cache document data in memory
     */
    docWithCache(path: string, maxAge?: number): Observable<any>;
    /**
     * @experimental
     *
     * Delete cached data from the memory
     */
    deleteCache(path: string, qb?: QueryBuilder): boolean;
    private fetchFromCache;
    static ɵfac: i0.ɵɵFactoryDeclaration<FirestoreService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FirestoreService>;
}

declare const arrayToChunks: (list: any[], size: number) => any[][];

declare const flatten: (source: Observable<any[]>) => Observable<any>;

export { AbstractFirestoreApi, FirestoreService, QueryBuilder, arrayToChunks, flatten };