/**
 * Task Manager - CRUD operations for scheduled tasks and timing groups
 * Uses simple JSON file storage at ~/.ncp/scheduler/schedule.json
 */
import { ScheduledTask, TimingGroup } from '../../types/scheduler.js';
export declare class TaskManager {
    private scheduleFile;
    private initialized;
    private static STORAGE_VERSION;
    private customSchedulerDir?;
    constructor(customSchedulerDir?: string);
    /**
     * Initialize paths and directories on first use
     */
    private ensureInitialized;
    /**
     * Load all tasks and timings from storage
     */
    private loadStorage;
    /**
     * Save tasks and timings to storage
     */
    private saveStorage;
    /**
     * Get or create a timing group for the given cron expression
     * Returns the timing ID
     */
    getOrCreateTimingGroup(cronExpression: string, timezone?: string): string;
    /**
     * Get a timing group by ID
     */
    getTimingGroup(timingId: string): TimingGroup | null;
    /**
     * Get all timing groups
     */
    getAllTimingGroups(): TimingGroup[];
    /**
     * Add a task to a timing group
     */
    addTaskToTiming(taskId: string, timingId: string): void;
    /**
     * Remove a task from a timing group
     * If this was the last task, delete the timing group
     */
    removeTaskFromTiming(taskId: string, timingId: string): boolean;
    /**
     * Get all tasks for a timing group
     */
    getTasksForTiming(timingId: string): ScheduledTask[];
    /**
     * Get all active tasks for a timing group
     */
    getActiveTasksForTiming(timingId: string): ScheduledTask[];
    /**
     * Create a new task
     */
    createTask(task: ScheduledTask): void;
    /**
     * Get a task by ID
     */
    getTask(taskId: string): ScheduledTask | null;
    /**
     * Get a task by name
     */
    getTaskByName(name: string): ScheduledTask | null;
    /**
     * Get all tasks
     */
    getAllTasks(): ScheduledTask[];
    /**
     * Get tasks by status
     */
    getTasksByStatus(status: ScheduledTask['status']): ScheduledTask[];
    /**
     * Update a task
     */
    updateTask(taskId: string, updates: Partial<ScheduledTask>): void;
    /**
     * Delete a task
     */
    deleteTask(taskId: string): boolean;
    /**
     * Increment execution count and update last execution metadata
     */
    recordExecution(taskId: string, executionId: string, executionTime: string): void;
    /**
     * Mark a task as errored
     */
    markTaskAsErrored(taskId: string, errorMessage: string): void;
    /**
     * Get task statistics
     */
    getStatistics(): {
        totalTasks: number;
        activeTasks: number;
        pausedTasks: number;
        completedTasks: number;
        errorTasks: number;
        totalTimings: number;
    };
}
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