/**
 * Configuration options for the DVD screensaver behavior.
 */
type Options = {
    /** Whether the animation should pause when the element is hovered or touched. */
    freezeOnHover?: boolean;
    /** Callback triggered each time the element hits a container boundary. Receives the total impact count. */
    impactCallback?: (count: number) => void;
    /** Callback triggered when the element simultaneously hits two boundaries (a corner). */
    onCornerHit?: () => void;
    /** Callback triggered when hover or touch begins on the element. */
    hoverCallback?: () => void;
    /** Pause the animation programmatically. */
    paused?: boolean;
    /**
     * Speed of the animation expressed as pixels per frame at 60 fps. Defaults to 2.
     * Internally the animation is time-based so the speed stays consistent across
     * 60 Hz, 90 Hz, and 120 Hz displays.
     */
    speed?: number;
};
/**
 * The return type of the useDvdScreensaver hook.
 */
type UseDvdScreensaver<T extends HTMLElement = HTMLDivElement> = {
    /** Attach to the container element. Takes precedence over the element's parent when provided. */
    containerRef: React.RefObject<T | null>;
    /** Attach to the element that should animate. */
    elementRef: React.RefObject<T | null>;
    /** Whether the element is currently hovered or touched. */
    hovered: boolean;
    /** Total number of boundary impacts. */
    impactCount: number;
};
/**
 * Hook that applies a DVD screensaver bouncing animation to an element.
 * Works on both desktop (mouse) and mobile (touch) devices, and is safe
 * to use in Next.js client components.
 *
 * The container must have `position: relative` (or `absolute` / `fixed`).
 * The animated element must have `position: absolute; top: 0; left: 0`.
 * If `containerRef` is not attached to a DOM node, the element's `parentElement` is used.
 *
 * @param options - Configuration options.
 * @returns Refs for the container and element, hover state, and impact count.
 *
 * @example Basic usage
 * ```tsx
 * const { containerRef, elementRef, impactCount } = useDvdScreensaver({ speed: 3 });
 *
 * return (
 *   <div ref={containerRef} style={{ position: 'relative', width: '100%', height: '400px' }}>
 *     <div ref={elementRef} style={{ position: 'absolute', top: 0, left: 0 }}>
 *       <MyLogo />
 *     </div>
 *   </div>
 * );
 * ```
 *
 * @example Change color on every boundary impact
 * ```tsx
 * const COLORS = ['#ff4081', '#7c4dff', '#00bcd4', '#69f0ae'];
 * const [color, setColor] = useState(COLORS[0]);
 *
 * const { containerRef, elementRef } = useDvdScreensaver({
 *   impactCallback: (count) => setColor(COLORS[count % COLORS.length]),
 * });
 * ```
 *
 * @example Programmatic pause and resume
 * ```tsx
 * const [paused, setPaused] = useState(false);
 * const { containerRef, elementRef } = useDvdScreensaver({ paused });
 *
 * return (
 *   <>
 *     <div ref={containerRef} style={{ position: 'relative', width: '100%', height: '400px' }}>
 *       <div ref={elementRef} style={{ position: 'absolute', top: 0, left: 0 }}>
 *         <MyLogo />
 *       </div>
 *     </div>
 *     <button onClick={() => setPaused((p) => !p)}>{paused ? 'Resume' : 'Pause'}</button>
 *   </>
 * );
 * ```
 *
 * @example Corner hit detection
 * ```tsx
 * const { containerRef, elementRef } = useDvdScreensaver({
 *   onCornerHit: () => console.log('Corner!'),
 * });
 * ```
 *
 * @example Next.js App Router — add 'use client' directive
 * ```tsx
 * 'use client';
 * import { useDvdScreensaver } from 'react-dvd-screensaver';
 *
 * export default function ScreensaverPage() {
 *   const { containerRef, elementRef } = useDvdScreensaver({ speed: 3 });
 *
 *   return (
 *     <div ref={containerRef} style={{ position: 'relative', width: '100%', height: '100vh' }}>
 *       <div ref={elementRef} style={{ position: 'absolute', top: 0, left: 0 }}>
 *         <MyLogo />
 *       </div>
 *     </div>
 *   );
 * }
 * ```
 */
declare function useDvdScreensaver<T extends HTMLElement = HTMLDivElement>(options?: Partial<Options>): UseDvdScreensaver<T>;

export { type Options, type UseDvdScreensaver, useDvdScreensaver };