import { AbstractService } from "./abstract.service";
import type { IDiscoveryService, ILoggerService, ITaskScheduler, ITaskService, NTaskScheduler, ILifecycleService } from "../..";
export declare class TaskService extends AbstractService implements ITaskService {
    protected readonly _lifecycleService: ILifecycleService;
    protected readonly _discoveryService: IDiscoveryService;
    protected readonly _loggerService: ILoggerService;
    protected _SERVICE_NAME: string;
    private _SCHEDULER;
    private _config;
    constructor(_lifecycleService: ILifecycleService, _discoveryService: IDiscoveryService, _loggerService: ILoggerService);
    private _setConfig;
    init(): Promise<boolean>;
    destroy(): Promise<void>;
    private get _scheduler();
    on<K>(event: "first", listener: (key: K, val: NTaskScheduler.TimePayload) => void): void;
    on<K>(event: "next", listener: (key: K, val: NTaskScheduler.TimePayload) => void): void;
    on<K, T = unknown>(event: "success", listener: (key: K, val: NTaskScheduler.OnSuccess<T>) => void): void;
    on<K, T = unknown>(event: "error", listener: (key: K, val: NTaskScheduler.OnError<T>) => void): void;
    on<K>(event: "delete", listener: (key: K) => void): void;
    once(event: string | symbol, listener: (...args: any[]) => void): void;
    off(event: string | symbol, listener: (...args: any[]) => void): void;
    removeListener(event: string | symbol, listener: (...args: any[]) => void): void;
    set<K extends string>(key: K, value: NTaskScheduler.Task): ITaskScheduler;
    get<K extends string>(key: K): NTaskScheduler.Task | undefined;
    delete<K extends string>(key: K): boolean;
}