import { Injector } from '@angular/core';
import { AngularFireDatabase } from '@angular/fire/compat/database';
import firebase from 'firebase/compat/app';
import { Observable } from 'rxjs';
import { Entity } from '../../model/entity-model';
import { Flatten } from '../../util/type-util';
import { CacheStrategy, LocalStorageCache } from '../cache';
export declare class CrudApi<T extends Entity> {
    protected injector: Injector;
    protected path: string;
    protected cacheStrategy: CacheStrategy;
    afd: AngularFireDatabase;
    cache: LocalStorageCache;
    constructor(injector: Injector, path: string, cacheStrategy?: CacheStrategy);
    get(id: string): Observable<T | null>;
    getMany(ids: string[]): Observable<T[]>;
    push(value: T): string;
    createPushId(): string;
    getRecord(): Observable<Record<string, T> | null>;
    getAll(): Observable<T[] | null>;
    getPage(limit: number, startAtId?: string, queryFn?: (query: firebase.database.Query) => firebase.database.Query): Observable<T[]>;
    getProperty<K1 extends keyof T>(id: string, property: K1): Observable<T[K1] | null>;
    getProperty<K1 extends keyof T, K2 extends keyof T[K1]>(id: string, k1: K1, k2: K2): Observable<T[K1][K2] | null>;
    setProperty<K1 extends keyof T>(value: T[K1], id: string, property: K1): Observable<void>;
    setProperty<K1 extends keyof T, K2 extends keyof T[K1]>(value: T[K1][K2], id: string, property: K1, propertyId: K2): Observable<void>;
    removeProperty<K1 extends keyof T>(id: string, property: K1): Observable<void>;
    removeProperty<K1 extends keyof T, K2 extends keyof T[K1]>(id: string, property: K1, propertyId: K2): Observable<void>;
    pushProperty<K extends keyof T>(value: Flatten<T[K]>, id: string, property: K): Observable<string>;
    update(id: string, entity: Partial<T>): Observable<void>;
    set(id: string, entity: T): Observable<void>;
    delete(id: string): Observable<void>;
    protected getPath(id: string): string;
    protected getPropertyPath(id: string, ...properties: (keyof T)[]): string;
}