import type { WebGLRenderer } from 'three';
import type { PlayerState } from '../core/player-state.js';
import type { VzEventEmitter } from '../core/event-emitter.js';
import type { CameraController } from '../renderer/camera-controller.js';
/**
 * Manages the WebXR session lifecycle.
 *
 * When entering XR:
 * - Requests an immersive-vr session
 * - Connects it to Three.js via renderer.xr.setSession()
 * - Three.js swaps to XRSession.requestAnimationFrame and renders per-eye
 * - Our layer-based stereo (Layer 1=left, Layer 2=right) maps directly
 * - CameraController is disabled (headset drives camera)
 *
 * When exiting XR:
 * - Three.js reverts to window.requestAnimationFrame
 * - CameraController is re-enabled
 */
export declare class XRManager {
    private renderer;
    private state;
    private events;
    private cameraController;
    private session;
    private controllerInput;
    constructor(renderer: WebGLRenderer, state: PlayerState, events: VzEventEmitter, cameraController: CameraController);
    /** Check if immersive-vr sessions are supported */
    static isSupported(): Promise<boolean>;
    /** Request and start an immersive-vr session */
    enterXR(): Promise<void>;
    /** End the current XR session */
    exitXR(): Promise<void>;
    /** Toggle XR on/off */
    toggleXR(): Promise<void>;
    /** Whether an XR session is currently active */
    get isActive(): boolean;
    /** Set handler for controller select (trigger press) */
    setSelectHandler(handler: () => void): void;
    /** Clean up */
    dispose(): void;
    private onSessionEnd;
}
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