import type { Action, IServer, ITask, ITaskScheduler, ITaskSchedulerOption, ProgressCallback } from '../../abstraction';
export declare class TaskScheduler implements ITaskScheduler {
    private _aborted;
    private _paused;
    private _server;
    private _runners;
    private _tasks;
    private _taskCount;
    private _completedTasks;
    onProgress?: ProgressCallback;
    onComplete?: Action<void>;
    onError?: Action<unknown>;
    option: ITaskSchedulerOption;
    constructor(server: IServer, option: ITaskSchedulerOption);
    get isAborted(): boolean;
    get isPaused(): boolean;
    get taskCount(): number;
    get progress(): number;
    scheduleAsync(tasks: ITask[], onProgress?: ProgressCallback, onComplete?: Action<void>, onError?: Action<unknown>): Promise<void>;
    abortAsync(): Promise<void>;
    pauseAsync(): Promise<void>;
    resumeAsync(): Promise<void>;
    startAsync(): Promise<void>;
    recoverAsync(tasks: ITask[], onProgress?: ProgressCallback, onComplete?: Action<void>, onError?: Action<unknown>): Promise<void>;
    private init;
    private createRunners;
    private createRunner;
    private completeTask;
    private assignTask;
}