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

interface UseDisplayMediaOptions {
    /** Video constraint. Default: true */
    video?: boolean | MediaTrackConstraints;
    /** Audio constraint. Default: false */
    audio?: boolean | MediaTrackConstraints;
    /** Auto-start on mount. Default: false */
    immediate?: boolean;
}
interface UseDisplayMediaReturn extends Supportable {
    /** Current display media stream */
    stream$: ReadonlyObservable<OpaqueObject<MediaStream> | null>;
    /** Whether stream is currently active */
    enabled$: ReadonlyObservable<boolean>;
    /** Start screen sharing. Throws if getDisplayMedia fails. */
    start: () => Promise<MediaStream>;
    /** Stop screen sharing */
    stop: () => void;
}
/**
 * Framework-agnostic reactive wrapper around
 * [MediaDevices.getDisplayMedia()](https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getDisplayMedia).
 *
 * Provides start/stop controls and automatically handles the browser's
 * "Stop sharing" button via a per-track `ended` listener.
 */
declare function createDisplayMedia(options?: DeepMaybeObservable<UseDisplayMediaOptions>): UseDisplayMediaReturn;

export { type UseDisplayMediaOptions, type UseDisplayMediaReturn, createDisplayMedia };