import { FirestoreQuery } from '@nu-art/firebase';
import { DB_Object, Module, ResolvableContent, TypedMap, UniqueId } from '@nu-art/ts-common';
import { firestore } from 'firebase-admin';
import { ModuleBE_BaseDB } from '../db-api-gen/ModuleBE_BaseDB.js';
import { DeltaSyncModule, FullSyncModule, NoNeedToSyncModule, SyncDataFirebaseState } from '../../../shared/sync-manager/types.js';
import { DBProto_DeletedDoc } from '../../../shared/index.js';
import { OnSyncEnvCompleted } from '../sync-env/ModuleBE_SyncEnv.js';
import { OnModuleCleanupV2 } from '../../_entity.js';
import { FirestoreCollectionV3 } from '@nu-art/firebase/backend/firestore-v3/FirestoreCollectionV3';
import Transaction = firestore.Transaction;
type DeletedDBItem = DB_Object & {
    __collectionName: string;
    __docId: UniqueId;
};
type Config = {
    retainDeletedCount: number;
};
/**
 * # ModuleBE_SyncManager
 *
 * ## <ins>Description:</ins>
 * This module manages all the {@link BaseDB_Module} updates and deleted items in order to allow incremental sync of items with clients
 *
 * ## <ins>Config:</ins>
 *
 * ```json
 * "ModuleBE_SyncManager" : {
 *   	retainDeletedCount: 100
 * }
 * ```
 */
export declare class ModuleBE_SyncManager_Class extends Module<Config> implements OnModuleCleanupV2, OnSyncEnvCompleted {
    collection: FirestoreCollectionV3<DBProto_DeletedDoc>;
    private database;
    private dbModules;
    smartSyncApi: import("../_imports.js")._ServerBodyApi<import("../../../shared/types.js").BodyApi<{
        modules: (NoNeedToSyncModule | DeltaSyncModule | FullSyncModule)[];
    }, {
        modules: import("../../../shared/sync-manager/types.js").SyncDbData[];
    }>>;
    private resolvableFirebaseBasePath;
    constructor();
    __onSyncEnvCompleted(env: string, baseUrl: string, requiredHeaders: TypedMap<string>): Promise<void>;
    init(): void;
    private calculateSmartSync;
    getOrCreateSyncData: () => Promise<SyncDataFirebaseState>;
    private prepareItemToDelete;
    onItemsDeleted(collectionName: string, items: DB_Object[], uniqueKeys?: string[], transaction?: Transaction): Promise<void>;
    queryDeleted(collectionName: string, query: FirestoreQuery<DB_Object>): Promise<DeletedDBItem[]>;
    __onCleanupInvokedV2: () => Promise<void>;
    getFullSyncData: () => Promise<SyncDataFirebaseState>;
    setLastUpdated(collectionName: string, lastUpdated: number): Promise<void>;
    setOldestDeleted(collectionName: string, oldestDeleted: number): Promise<void>;
    setModuleFilter: (filter: (modules: (ModuleBE_BaseDB<any>)[]) => Promise<(ModuleBE_BaseDB<any>)[]>) => void;
    /**
     * Set function that allows to set a custom resolver for the rtdb node path
     * @param resolvablePath The resolver for the node path
     */
    setResolvablePath: (resolvablePath: ResolvableContent<string>) => void;
    private filterModules;
}
export declare const ModuleBE_SyncManager: ModuleBE_SyncManager_Class;
export {};