import { NestGdatastoreOptions } from './interfaces';
import { Datastore } from '@google-cloud/datastore';
import { Filter } from './interfaces/datastore.interface';
/**
 * Sample interface for NestGdatastoreService
 *
 * Customize this as needed to describe the NestGdatastoreService
 *
 */
interface INestGdatastoreService {
    datastore: Datastore;
    createEntity(entity: any, kind: string, keyName: string): void;
    readEntity(kind: string, filters: Filter[], latestEntity: {
        property: string;
    }): Promise<any[]>;
    replaceEntity(entity: any, kind: string, keyName: string | number): void;
    editEntity(id: string | number, kind: string, newValues: any[]): void;
    deleteEntity(kind: string, keyName: string | number): void;
}
export declare class NestGdatastoreService implements INestGdatastoreService, INestGdatastoreService {
    private config;
    private readonly logger;
    constructor(config: NestGdatastoreOptions);
    datastore: Datastore;
    createEntity(entity: any, kind: string, keyName?: string): Promise<[import("@google-cloud/datastore/build/proto/datastore").google.datastore.v1.ICommitResponse]>;
    /**
     * @param  {string} kind
     * @param  {Filter[]} filters? NOTE: IF FILTERING ON KEY... ONLY USE NUMBER FOR ID
     * @param  {{property:string}} latestEntity?
     */
    readEntity(kind: string, filters?: Filter[], latestEntity?: {
        property: string;
    }, orderBy?: {
        property: string;
        descending: boolean;
    }, limit?: number): Promise<any[]>;
    private sortObjects;
    private addFilter;
    private runSearchQuery;
    massDeleteEntitiesInKind(kind: string): Promise<void>;
    private createKeyListFromEntities;
    private fiveSecondCounter;
    replaceEntity(entity: any, kind: string, keyName: string | number): Promise<[import("@google-cloud/datastore/build/proto/datastore").google.datastore.v1.ICommitResponse]>;
    /**
     * @param  {any} id id of the datastore entity
     * @param  {string} kind Kind of the datastore entity
     * @param  {any} newValues Top level key and nested values of the entity.
     *
     * eg. [{age:4}, geolocation:{lat:35,lng:65}]
     *
     * Given an id, a kind and a new set of values, can edit properties of an entity.
     * Capable of replacing top level keys with new values.
     * ie: {"geolocation":{"lat":3,"lng":3}, "age":3}
     * to replace lat, you will need to replace the whole geolocation object, and pass
     * in a new geolocation object as the third parameter.
     *
     * To replace age, you simply need to pass in {"age":5} as the third parameter.
     */
    editEntity<T>(id: string | number, kind: string, newValues: any[]): Promise<any>;
    deleteEntity(kind: string, keyName: string | number): Promise<[import("@google-cloud/datastore/build/proto/datastore").google.datastore.v1.ICommitResponse]>;
}
export {};