/** @module Achievements */
import type HTTPChannel from "../channel";
type onAchievementHandler = (arg0: Achievement) => any;
/**
 * The Achievements service. This class is used to update the progress of an achievement for the
 * current user, and loading achievements of other users. All achievements have to be defined in the
 * admin panel first.
 */
export default class Achievements {
    protected channel: HTTPChannel;
    private _list;
    onCompleteHandlers: onAchievementHandler[];
    /**
     * If null, the achievements has not been refreshed.
     */
    currentVersion: string | null;
    constructor(channel: HTTPChannel);
    /**
     * The list of achievements for the current user. You must call refresh() first to initialize this list.
     */
    get myAchievements(): Achievement[];
    addOnComplete(onCompleteHandler: onAchievementHandler): void;
    /**
     * Get an achievement by id
     * @param {string} achievementId Id of the achievement to get.
     */
    get(achievementId: string): Achievement | null;
    /**
     * Refresh the list of achievements.
     */
    refresh(): Promise<Achievement[]>;
    /**
     * Load the achivements for multiple users by their connectUserId
     * @param {string[]} userIds The list of users to load achievements for.
     */
    load(userIds: string[]): Promise<{
        [userId: string]: Achievement[];
    }>;
    /**
     * Sets the progress of the specified achievement
     * @param {string} achievementId The id of the achievement to set the progress for.
     * @param {number} progress The value to set the progress to
     */
    progressSet(achievementId: string, progress: number): Promise<Achievement>;
    /**
     * Adds the delta to the progress of the specified achievement
     * @param {string} achievementId The id of the achievement to add to the progress for.
     * @param {number} progressDelta The value to add to the progress.
     */
    progressAdd(achievementId: string, progressDelta: number): Promise<Achievement>;
    /**
     * Sets the progress of the specified achievement to the bigger value of the current value and the given value.
     * @param {string} achievementId The id of the achievement to set the progress for.
     * @param {number} progress The value to set the progress to, if it's bigger than the current value.
     */
    progressMax(achievementId: string, progress: number): Promise<Achievement>;
    /**
     * Completes the specified achievement by setting the progress to the progress goal.
     * @param {string} achievementId The id of the achievement to complete.
     */
    progressComplete(achievementId: string): Promise<Achievement>;
    /**
     * THIS IS FOR INTERNAL USE!
     * @returns {Achievement}
     */
    protected update(achievement: any, completednow: boolean): Achievement;
}
export declare class Achievement {
    /**
     * The id of this achievement.
     */
    id: string;
    /**
     * The title of this achievement.
     */
    title: string;
    /**
     * The description of this achievement.
     */
    description: string;
    /**
     * The image url of this achievement.
     */
    imageUrl: string;
    /**
     * The progress of this achievement.
     */
    progress: number;
    /**
     * The progress goal of this achievement.
     */
    progressGoal: number;
    /**
     * When this achievement was last updated.
     */
    lastUpdated: Date;
    /**
     * The progress ratio of this achievement.
     */
    progressRatio: number;
    /**
     * If this achievement is completed.
     */
    completed: boolean;
    constructor(id: string, title: string, description: string, imageUrl: string, progress: number, progressGoal: number, lastUpdated: number);
}
export {};