import { CalendarEvent, CalendarEventInput, CalendarOptions, CalendarView } from './calendar.types';
/**
 * Headless calendar controller. Renders month/week/day grids into a provided
 * container, places events into their day, supports keyboard date navigation,
 * view switching, prev/next/today navigation and pointer drag to move events.
 * It reflects state via `data-*` attributes and CSS custom properties — it
 * applies no visual styling.
 *
 * Markup:
 * ```html
 * <div data-c42-calendar>
 *   <div data-c42-calendar-header>
 *     <button data-c42-calendar-prev aria-label="Previous">‹</button>
 *     <button data-c42-calendar-today>Today</button>
 *     <button data-c42-calendar-next aria-label="Next">›</button>
 *     <span data-c42-calendar-title></span>
 *     <button data-c42-calendar-view="month">Month</button>
 *     <button data-c42-calendar-view="week">Week</button>
 *     <button data-c42-calendar-view="day">Day</button>
 *   </div>
 *   <div data-c42-calendar-grid></div>
 * </div>
 * ```
 */
export declare class Calendar {
    private readonly root;
    private readonly grid;
    private readonly titleEl;
    private readonly weekStartsOn;
    private readonly locale;
    private current;
    private view;
    private focused;
    private selected;
    private readonly events;
    private drag;
    private cleanups;
    constructor(root: HTMLElement, options?: CalendarOptions);
    private normalizeInto;
    private init;
    private bindControl;
    private rangeStart;
    private dayCount;
    private days;
    private eventsOn;
    private inPeriod;
    private render;
    private renderEvent;
    private renderTitle;
    private formatTitle;
    private renderViewButtons;
    private renderWeekdayHeader;
    private onKeydown;
    private moveFocus;
    private moveFocusTo;
    private focusCell;
    private onGridClick;
    private onPointerDown;
    private readonly onPointerMove;
    private readonly onPointerUp;
    /** Switch the view (month/week/day). */
    setView(view: CalendarView): void;
    /** Move to the previous/next period (sign of `direction`). */
    navigate(direction: number): void;
    /** Jump to today's period. */
    goToToday(): void;
    /** Programmatically navigate to a given date (keeps the current view). */
    goToDate(date: Date | string): void;
    /** Select a date, reflect it and emit `calendar:select`. */
    selectDate(date: Date | string): void;
    /** Add an event and re-render. Returns the normalized event. */
    addEvent(input: CalendarEventInput): CalendarEvent;
    /** Remove an event by id. Returns true if it existed. */
    removeEvent(id: string): boolean;
    /**
     * Move an event to a new day (preserving its time-of-day and duration) and
     * emit `calendar:eventmove`.
     */
    moveEvent(id: string, toDay: Date | string): boolean;
    /** All events, sorted by start. */
    getEvents(): CalendarEvent[];
    get currentView(): CalendarView;
    get currentDate(): Date;
    get selectedDate(): Date | null;
    private emitNavigate;
    /** Subscribe to a DOM event on the root element. Returns an unsubscribe fn. */
    on<E extends Event = Event>(event: string, handler: (event: E) => void): () => void;
    destroy(): void;
}