import type { GsapHandle, GsapTimeline } from '../../core/gsap-detect';
/**
 * Augmented timeline returned by horizontalLoop. Adds index navigation methods,
 * a Draggable handle, and an optional touchCleanup function.
 */
export interface SliderLoop extends GsapTimeline {
    next: (vars?: Record<string, unknown>) => unknown;
    previous: (vars?: Record<string, unknown>) => unknown;
    toIndex: (index: number, vars?: Record<string, unknown>) => unknown;
    current: () => number;
    closestIndex: (setCurrent?: boolean) => number;
    refresh: (deep?: boolean) => void;
    times: number[];
    draggable?: DraggableInstance;
    touchCleanup?: () => void;
}
export interface DraggableInstance {
    kill: () => void;
    enable: () => void;
    disable: () => void;
    startX: number;
    startY: number;
    x: number;
    y: number;
    pointerX: number;
    pointerY: number;
    isThrowing: boolean;
    vars: Record<string, unknown>;
}
export interface HorizontalLoopConfig {
    speed?: number;
    paused?: boolean;
    repeat?: number;
    draggable?: boolean;
    center?: boolean | string;
    reversed?: boolean;
    paddingRight?: number;
    snap?: number | false;
    onChange?: (item: Element, index: number) => void;
    /** Fires once on drag press-init, before the timeline pause. */
    onDragStart?: () => void;
    /**
     * Fires on every drag release. `isThrowing` is true when the release
     * triggered an inertia throw — `onThrowComplete` will fire after that
     * lands. False on a static press / click with no movement, in which case
     * `onThrowComplete` will NOT fire and the caller is responsible for any
     * post-press cleanup.
     */
    onRelease?: (isThrowing: boolean) => void;
    /** Fires after the inertia throw lands on a new slide boundary. */
    onThrowComplete?: (index: number) => void;
}
/**
 * Seamless horizontal looping timeline ported from v7's horizontalLoop helper
 * (originally https://gsap.com/docs/v3/HelperFunctions/helpers/seamlessLoop).
 * The math is delicate; this is a near-verbatim port — do not "improve" it.
 */
export declare function horizontalLoop(gsapHandle: GsapHandle, rawItems: ArrayLike<Element>, config?: HorizontalLoopConfig): SliderLoop;
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