/**
 * Simple cron scheduler — no external dependencies.
 * Supports cron expressions: star, star-slash-N, M-N, M,N for minute/hour/day/month/weekday.
 */
export interface CronJob {
    id: string;
    name: string;
    schedule: string;
    task: string;
    enabled: boolean;
    lastRun?: Date;
    nextRun?: Date;
    delivery?: {
        channel: string;
        chatId: string;
        threadId?: number;
    };
}
type CronField = {
    type: 'any';
} | {
    type: 'every';
    step: number;
} | {
    type: 'list';
    values: number[];
};
interface ParsedCron {
    minute: CronField;
    hour: CronField;
    dayOfMonth: CronField;
    month: CronField;
    dayOfWeek: CronField;
}
export declare function parseCron(expr: string): ParsedCron;
export declare function cronMatches(parsed: ParsedCron, date: Date): boolean;
export type JobHandler = (job: CronJob) => void | Promise<void>;
export declare class Scheduler {
    private jobs;
    private parsed;
    private timer;
    private handler;
    constructor(handler: JobHandler);
    addJob(job: CronJob): void;
    removeJob(id: string): void;
    enableJob(id: string): void;
    disableJob(id: string): void;
    getJobs(): CronJob[];
    getJob(id: string): CronJob | undefined;
    /** Run a specific job immediately */
    runJob(id: string): Promise<boolean>;
    start(): void;
    stop(): void;
    private tick;
}
export {};
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