import { StateRepository } from '../core';
/**
 * Service for creating background tasks
 */
export interface TaskRepository extends StateRepository {
    /**
     * Create a new background task
     *
     * @param url url to the resource that will create the task
     * @param data task specific data
     * @param cancelAction true to allow task creation to be cancelled
     * @param message notification message to display before the task is created instead of the default one
     * @returns a promise that resolves to the id of the task if it was created successfully
     */
    create(url: string, data: any, cancelAction?: boolean, message?: string): Promise<string | void>;
    /**
     * Get status about specific tasks
     *
     * @param ids the ids of the tasks to check
     * @returns a promise that resolves to the status about the tasks
     */
    getStatus(ids: string[]): Promise<TaskStatus[]>;
}
export declare enum TaskState {
    /**
     * Task state is unknown
     */
    Pending = "PENDING",
    /**
     * Task was started by a worker
     */
    Started = "STARTED",
    /**
     * Task is waiting for retry
     */
    Retry = "RETRY",
    /**
     * Task succeeded
     */
    Success = "SUCCESS",
    /**
     * Task failed
     */
    Failure = "FAILURE"
}
export interface TaskStatus {
    /**
     * ID of the task
     */
    id: string;
    /**
     * The state of the task
     */
    status: TaskState;
    /**
     * The result of the task once it has finished its execution
     */
    result?: string;
}
/**
 * Events dispatched by the task service
 */
export declare enum TaskEventType {
    /**
     * Dispatched when a task has been created.
     *
     * @detail { task }
     */
    Created = "task.created",
    /**
     * Dispatched when the task has successfully been completed
     *
     * @detail { task }
     */
    Success = "task.success",
    /**
     * Dispatched if an error occured while running the task
     *
     * @detail { task | error? }
     */
    Failed = "task.failed"
}