import type { IConfigSnapshotUseCase } from '../../application/ports/inbound/IConfigSnapshotUseCase.js';
import type { IConfigSnapshotScheduleUseCase } from '../../application/ports/inbound/IConfigSnapshotScheduleUseCase.js';
import type { IConfigSnapshotRepository } from '../../application/ports/outbound/IConfigSnapshotRepository.js';
import type { ConfigSnapshotSchedule } from '../../domain/entities/ConfigSnapshotSchedule.js';
/**
 * Info about a running cron job
 */
export interface CronJobInfo {
    scheduleName: string;
    serverName: string;
    cronExpression: string;
    retentionCount: number;
}
/**
 * Logger interface for dependency injection
 */
export interface ISchedulerLogger {
    info(msg: string): void;
    warn(msg: string): void;
    error(msg: string): void;
    error(error: unknown, msg: string): void;
}
/**
 * ConfigSnapshotSchedulerService
 * Manages cron-based config snapshot scheduling using node-cron.
 * Follows the same pattern as BackupSchedulerService.
 */
export declare class ConfigSnapshotSchedulerService {
    private readonly snapshotUseCase;
    private readonly scheduleUseCase;
    private readonly snapshotRepository;
    private readonly logger;
    private tasks;
    private jobInfo;
    private cronSchedule;
    private cronValidate;
    constructor(snapshotUseCase: IConfigSnapshotUseCase, scheduleUseCase: IConfigSnapshotScheduleUseCase, snapshotRepository: IConfigSnapshotRepository, logger: ISchedulerLogger);
    /**
     * Initialize the scheduler: load node-cron and start enabled schedules
     */
    initialize(): Promise<void>;
    /**
     * Load all enabled schedules and register cron tasks
     */
    loadEnabledSchedules(): Promise<void>;
    /**
     * Register a cron task for a schedule
     */
    registerTask(schedule: ConfigSnapshotSchedule): void;
    /**
     * Unregister a cron task
     */
    unregisterTask(scheduleId: string): void;
    /**
     * Add a schedule (called when a new schedule is created via API)
     */
    addSchedule(schedule: ConfigSnapshotSchedule): void;
    /**
     * Update a schedule (called when a schedule is updated via API)
     */
    updateSchedule(schedule: ConfigSnapshotSchedule): void;
    /**
     * Remove a schedule (called when a schedule is deleted via API)
     */
    removeSchedule(scheduleId: string): void;
    /**
     * Execute a config snapshot for a given schedule.
     */
    private executeSnapshot;
    /**
     * Apply retention policy: delete oldest snapshots exceeding retentionCount
     */
    private applyRetentionPolicy;
    /**
     * Reload all schedules (e.g., after external changes)
     */
    reload(): Promise<void>;
    /**
     * Stop all scheduled tasks (graceful shutdown)
     */
    shutdown(): void;
    /**
     * Get the number of active tasks
     */
    get activeTaskCount(): number;
    /**
     * Get info about running cron jobs
     */
    getRunningJobs(): Map<string, CronJobInfo>;
}
//# sourceMappingURL=ConfigSnapshotSchedulerService.d.ts.map