import { DevicesChangeCallback, DevicesState } from '../../types';
import { PermissionsService } from '../../permissions';
import { ActiveDeviceIds, DeviceDisconnectedCallback } from '../device.types';
import { AudioOutputController } from './audio-output.controller';

export declare class DevicesController {
    private callbacks;
    private disconnectedCallbacks;
    private cachedDevices;
    private deviceChangeListener;
    private audioOutputController?;
    private hasAutoSelectedSpeaker;
    private getActiveDeviceIds?;
    private permissionsService?;
    constructor(audioOutputController?: AudioOutputController, getActiveDeviceIds?: () => ActiveDeviceIds, permissionsService?: PermissionsService);
    private setupDeviceChangeListener;
    getAvailable: () => Promise<DevicesState>;
    private checkDeviceDisconnection;
    private notifyDeviceDisconnected;
    getCurrentAudioOutput: (audioElement: HTMLAudioElement) => string;
    checkPermissions: () => Promise<import('../..').MediaPermissions>;
    onChange: (callback: DevicesChangeCallback) => (() => void);
    onDeviceDisconnected: (callback: DeviceDisconnectedCallback) => VoidFunction;
    _notifyChange(devices: DevicesState): void;
    get state(): DevicesState;
    _updateCache(): Promise<void>;
    destroy(): void;
}