import { DeepMaybeObservable, Supportable, ReadonlyObservable } from '@usels/core';

interface UseDevicesListOptions {
    /** Request permissions on mount */
    requestPermissions?: boolean;
    /** Constraints for getUserMedia when requesting permissions */
    constraints?: MediaStreamConstraints;
    /** Callback when device list is updated */
    onUpdated?: (devices: MediaDeviceInfo[]) => void;
}
interface UseDevicesListReturn extends Supportable {
    /** All enumerated media devices */
    devices$: ReadonlyObservable<MediaDeviceInfo[]>;
    /** Video input devices (cameras) */
    videoInputs$: ReadonlyObservable<MediaDeviceInfo[]>;
    /** Audio input devices (microphones) */
    audioInputs$: ReadonlyObservable<MediaDeviceInfo[]>;
    /** Audio output devices (speakers) */
    audioOutputs$: ReadonlyObservable<MediaDeviceInfo[]>;
    /** Whether media permissions have been granted */
    permissionGranted$: ReadonlyObservable<boolean>;
    /** Request media device permissions */
    ensurePermissions: () => Promise<boolean>;
}
/**
 * Framework-agnostic reactive wrapper around
 * [MediaDevices.enumerateDevices()](https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/enumerateDevices).
 *
 * Lists available media input/output devices and tracks changes via the
 * `devicechange` event on `navigator.mediaDevices`. Optionally requests
 * permissions on mount.
 */
declare function createDevicesList(options?: DeepMaybeObservable<UseDevicesListOptions>): UseDevicesListReturn;

export { type UseDevicesListOptions, type UseDevicesListReturn, createDevicesList };