import type { ScheduledTask, ScheduledTaskCreateInput, ScheduledTaskRunHistoryEntry, ScheduledTaskRunner, ScheduledTaskStore, ScheduledTaskType, ScheduledTaskUpdate, SchedulerLock, TaskScheduler, TaskSchedulerStatus } from "./types.js";
export declare class PersistentTaskScheduler implements TaskScheduler {
    private readonly store;
    private readonly lock;
    private readonly runner;
    private readonly timers;
    private readonly crons;
    private readonly runningTaskIds;
    private active;
    constructor(store: ScheduledTaskStore, lock: SchedulerLock, runner: ScheduledTaskRunner);
    list(): Promise<ScheduledTask[]>;
    get(taskId: string): Promise<ScheduledTask | undefined>;
    status(): Promise<TaskSchedulerStatus>;
    isActive(): boolean;
    create(input: ScheduledTaskCreateInput): Promise<ScheduledTask>;
    update(taskId: string, input: ScheduledTaskUpdate): Promise<ScheduledTask | undefined>;
    delete(taskId: string): Promise<boolean>;
    runNow(taskId: string): Promise<ScheduledTask | undefined>;
    start(): Promise<void>;
    stop(): Promise<void>;
    private schedule;
    private execute;
    private unschedule;
    private refreshNextRun;
    private markScheduleError;
}
export declare function resolveScheduledTaskDefinition(input: {
    type?: ScheduledTaskType;
    schedule?: string;
}): Pick<ScheduledTask, "type" | "schedule" | "intervalSeconds">;
export declare function computeNextRunAt(task: ScheduledTask): string | undefined;
export declare function createTaskHistoryEntry(status: ScheduledTaskRunHistoryEntry["status"], message?: string, options?: {
    createdAt?: string;
    sessionId?: string;
}): ScheduledTaskRunHistoryEntry;
export declare function appendTaskHistory(history: ScheduledTaskRunHistoryEntry[] | undefined, entry: ScheduledTaskRunHistoryEntry): ScheduledTaskRunHistoryEntry[];
export declare function updateTaskHistoryEntry(history: ScheduledTaskRunHistoryEntry[] | undefined, entryId: string, patch: Pick<ScheduledTaskRunHistoryEntry, "status"> & Pick<Partial<ScheduledTaskRunHistoryEntry>, "message">): ScheduledTaskRunHistoryEntry[];
export declare function createRunSessionId(): string;
//# sourceMappingURL=scheduler.d.ts.map