export interface BasicLightBox {
    /**
     * Shows a lightbox instance.
     *
     * @param cb A function that gets executed as soon as the lightbox starts to fade in.
     */
    show: (cb?: () => void) => void;

    /**
     * Closes a lightbox instance.
     *
     * @param cb A function that gets executed as soon as the lightbox has been faded out.
     */
    close: (cb?: () => void) => void;

    /**
     * Returns true when the lightbox instance is visible. Also returns true when the lightbox is currently in the process of showing/hiding and not fully visible/hidden, yet.
     */
    visible: () => boolean;

    /**
     * Returns the DOM element/node associated with the instance.
     */
    element: () => Element;
}

export interface BasicLightBoxOptions {
    /*
     * Prevents the lightbox from closing when clicking its background.
     */
    closable?: boolean | undefined;
    /*
     * One or more space separated classes to be added to the basicLightbox element.
     */
    className?: string | undefined;
    /*
     * Function that gets executed before the lightbox will be shown.
     * Returning false will prevent the lightbox from showing.
     */
    onShow?: ((instance: BasicLightBox) => boolean) | undefined;
    /*
     * Function that gets executed before the lightbox closes.
     * Returning false will prevent the lightbox from closing.
     */
    onClose?: ((instance: BasicLightBox) => boolean) | undefined;
}

/**
 * Creates a new BasicLightbox instance.
 *
 * @param content Content of the lightbox.
 * @param options An object of options.
 */
export function create(content: string | Element, options?: BasicLightBoxOptions): BasicLightBox;

/**
 * Returns `true` when a lightbox is visible. Also returns true when a lightbox is currently in the process of showing/hiding and not fully visible/hidden, yet.
 */
export function visible(): boolean;