import DataLoader from 'dataloader';
import { DBProvider } from '../../app-providers/db.provider.js';
import { BusinessesProvider } from '../../financial-entities/providers/businesses.provider.js';
import type { IGetAllOpenContractsResult, IInsertContractParams, IUpdateContractParams } from '../types.js';
export declare class ContractsProvider {
    private dbProvider;
    private businessesProvider;
    cache: {
        get: <T>(key: import("node-cache").Key) => T | undefined;
        set: {
            <T>(key: import("node-cache").Key, value: T, ttl: number | string): boolean;
            <T>(key: import("node-cache").Key, value: T): boolean;
        };
        delete: (keys: import("node-cache").Key | import("node-cache").Key[]) => number;
        clear: () => void;
    };
    constructor(dbProvider: DBProvider, businessesProvider: BusinessesProvider);
    getAllOpenContracts(): Promise<IGetAllOpenContractsResult[]>;
    private contractsByIds;
    getContractsByIdLoader: DataLoader<string, import("../types.js").IGetContractsByIdsResult | undefined, import("node-cache").Key | import("node-cache").Key[]>;
    private contractsByAdminBusinessIds;
    getContractsByAdminBusinessIdLoader: DataLoader<string, import("../types.js").IGetContractsByAdminBusinessIdsResult[], import("node-cache").Key | import("node-cache").Key[]>;
    private contractsByClients;
    getContractsByClientIdLoader: DataLoader<string, import("../types.js").IGetContractsByClientIdsResult[], import("node-cache").Key | import("node-cache").Key[]>;
    createContract(params: IInsertContractParams): Promise<import("../types.js").IInsertContractResult>;
    updateContract(params: IUpdateContractParams): Promise<import("../types.js").IUpdateContractResult>;
    deleteContract(contractId: string): Promise<boolean>;
    invalidateCacheForContract(contractId: string): Promise<void>;
    clearCache(): void;
}