interface VisionOverlayDeps {
    body: HTMLElement;
    panel: HTMLElement;
    root: ShadowRoot;
    controls: HTMLElement;
    camToggleBtn: HTMLButtonElement;
    el: (tag: string, cls: string, parent: HTMLElement) => HTMLElement;
    onStart: () => void;
    onCameraToggle?: (off: boolean) => void;
}
export declare class VisionOverlay {
    private deps;
    private videoEl;
    private vidWrap;
    private vidTxs;
    private vidPartial;
    private vidStatus;
    private camDot;
    private fsBtn;
    private recBadge;
    private vcallBadge;
    private faceCanvas;
    private faceCtx;
    private wantVision;
    private previewVideo;
    private visionMode;
    private fullscreen;
    private cameraOff;
    private onCameraToggle;
    private vidMsgTimers;
    private readonly VID_MSG_TTL;
    private readonly VID_MSG_MAX;
    private static readonly FACE_CONTOUR;
    private static readonly LEFT_EYE;
    private static readonly RIGHT_EYE;
    private static readonly LIPS;
    private static readonly NOSE_BRIDGE;
    constructor(deps: VisionOverlayDeps);
    isWantVision(): boolean;
    isVisionMode(): boolean;
    getVideoEl(): HTMLVideoElement | null;
    isCameraOff(): boolean;
    getPreviewVideo(): HTMLVideoElement | null;
    enableVision(videoEl: HTMLVideoElement, onCameraToggle?: (off: boolean) => void): void;
    disableVision(): void;
    setVisionCapable(enabled: boolean): void;
    setPreviewVideo(videoEl: HTMLVideoElement): void;
    showCamDot(): void;
    hideCamDot(): void;
    showRecBadge(): void;
    hideRecBadge(): void;
    showVCallBadge(): void;
    hideVCallBadge(): void;
    drawFaceLandmarks(landmarks: Array<{
        x: number;
        y: number;
    }>): void;
    renderVideoOverlay(body: HTMLElement, msgs: Array<{
        role: string;
        text: string;
    }>, cleanText: (t: string) => string): void;
    appendVideoMsg(role: string, text: string, cleanText: (t: string) => string): void;
    private createVideoMsgEl;
    renderVideoPartial(partialText: string, body: HTMLElement, cleanText: (t: string) => string): void;
    clearVideoPartial(): void;
    showVideoStatus(label: string, body: HTMLElement): void;
    clearVideoStatus(): void;
    toggleFullscreen(): void;
    teardownVideoOverlay(): void;
    reset(): void;
}
export {};