/**
 * Update configuration with validation
 * @param {Record<string, *>} options - New configuration options
 */
export function updateConfig(options?: Record<string, any>): void;
/**
 * Reset configuration and state to defaults
 */
export function resetConfig(): void;
/**
 * Get current configuration (immutable copy)
 * @returns {object} Current configuration
 */
export function getConfig(): object;
/**
 * Add cleanup function to be called on destroy
 * @param {Function} fn - Cleanup function
 */
export function addCleanupFunction(fn: Function): void;
/**
 * Run all registered cleanup functions
 */
export function runCleanupFunctions(): void;
/**
 * Add cleanup function to be called when modal closes
 * @param {Function} fn - Cleanup function
 */
export function addModalCleanupFunction(fn: Function): void;
/**
 * Run all modal-scoped cleanup functions
 */
export function runModalCleanupFunctions(): void;
/**
 * Global State Singleton (Internal Mutable)
 * @type {DiagViewState}
 */
export const state: DiagViewState;
export namespace publicState {
    let config: Record<string, any>;
    let events: ReturnType<typeof EventEmitter>;
    let activePanzoom: object | null;
    let observer: MutationObserver | null;
    let lazyObserver: IntersectionObserver | null;
    let isInitialized: boolean;
    let isModalOpen: boolean;
    let isModalOpening: boolean;
    let cleanupFunctions: Set<Function>;
    let modalCleanupFunctions: Set<Function>;
    let hasCheckedShareLink: boolean;
    let isInitialProcessDone: boolean;
    let touchState: {
        isPinching: boolean;
        lastTouchCount: number;
        initialDistance: number;
    };
    let lastActiveElement: Element | null;
    let meetingMode: boolean;
    let laserPointer: Function | null;
    let minimapSvg: SVGElement | null;
    let searchMatches: Element[];
    let searchRafId: number | null;
    let focusManagementSetup: boolean;
    let activeMeetingHandlers: object | null;
    let themeCache: object | null;
    let themeCacheTimestamp: number;
    let themeObserver: MutationObserver | null;
    let themeChangeHandler: Function | null;
    let mediaQueryList: MediaQueryList | null;
    let colorParserEl: HTMLElement | null;
    let activeSourceElement: HTMLElement | null;
    let rotationAngle: number;
    let savedScrollY: number;
    let currentDiagramIndex: number;
    let asyncTasks: {
        timeouts: Set<any>;
        rafs: Set<number>;
    };
    let nodesToProcess: Set<Node>;
    let debouncedProcess: Function | null;
    let searchCache: WeakMap<SVGElement, Array<any>>;
    let isStorageAvailable: boolean;
    let meetingCleanupRegistered: boolean;
    let focusableElements: HTMLElement[] | null;
}
export type DiagViewState = {
    /**
     * - Current effective configuration
     */
    config: Record<string, any>;
    /**
     * - Instance-based event bus
     */
    events: ReturnType<typeof EventEmitter>;
    /**
     * - Active Panzoom instance
     */
    activePanzoom: object | null;
    /**
     * - Diagram mutation observer
     */
    observer: MutationObserver | null;
    /**
     * - Lazy initialization observer
     */
    lazyObserver: IntersectionObserver | null;
    /**
     * - Whether DiagView has been initialised
     */
    isInitialized: boolean;
    /**
     * - Whether fullscreen modal is open
     */
    isModalOpen: boolean;
    /**
     * - Whether modal is currently initializing
     */
    isModalOpening: boolean;
    /**
     * - Global cleanup functions
     */
    cleanupFunctions: Set<Function>;
    /**
     * - Modal-scoped cleanup functions
     */
    modalCleanupFunctions: Set<Function>;
    /**
     * - Share link check flag
     */
    hasCheckedShareLink: boolean;
    /**
     * - Initial scan completed flag
     */
    isInitialProcessDone: boolean;
    /**
     * - Touch gesture state
     */
    touchState: {
        isPinching: boolean;
        lastTouchCount: number;
        initialDistance: number;
    };
    /**
     * - Element focused before modal opened
     */
    lastActiveElement: Element | null;
    /**
     * - Whether laser pointer is active
     */
    meetingMode: boolean;
    /**
     * - Active mousemove handler for laser (internal)
     */
    laserPointer: Function | null;
    /**
     * - Minimap SVG clone element
     */
    minimapSvg: SVGElement | null;
    /**
     * - Current search match elements
     */
    searchMatches: Element[];
    /**
     * - RAF id for search batching
     */
    searchRafId: number | null;
    /**
     * - Focus trap initialised flag
     */
    focusManagementSetup: boolean;
    /**
     * - Active meeting mode handlers
     */
    activeMeetingHandlers: object | null;
    /**
     * - Cached theme detection result
     */
    themeCache: object | null;
    /**
     * - Timestamp of last theme detection
     */
    themeCacheTimestamp: number;
    /**
     * - Observer for theme changes
     */
    themeObserver: MutationObserver | null;
    /**
     * - Handler for media query changes
     */
    themeChangeHandler: Function | null;
    /**
     * - Media query list for theme detection
     */
    mediaQueryList: MediaQueryList | null;
    /**
     * - Temporary element for color parsing
     */
    colorParserEl: HTMLElement | null;
    /**
     * - Original diagram element before cloning
     */
    activeSourceElement: HTMLElement | null;
    /**
     * - Current diagram rotation (0/90/180/270)
     */
    rotationAngle: number;
    /**
     * - Saved window scroll position for iOS lock
     */
    savedScrollY: number;
    /**
     * - Index of currently open diagram
     */
    currentDiagramIndex: number;
    /**
     * - Registry for pending async tasks
     */
    asyncTasks: {
        timeouts: Set<any>;
        rafs: Set<number>;
    };
    /**
     * - Observer pending nodes queue
     */
    nodesToProcess: Set<Node>;
    /**
     * - Observer debounced function
     */
    debouncedProcess: Function | null;
    /**
     * - Search candidates cache
     */
    searchCache: WeakMap<SVGElement, Array<any>>;
    /**
     * - Whether sessionStorage is available
     */
    isStorageAvailable: boolean;
    /**
     * - Meeting mode cleanup flag
     */
    meetingCleanupRegistered: boolean;
    /**
     * - Cached focusable elements for modal
     */
    focusableElements: HTMLElement[] | null;
};
import { EventEmitter } from "./events.js";
import { DEFAULT_CONFIG } from "./config-defaults.js";
import { INITIAL_CONFIG } from "./config-defaults.js";
export { DEFAULT_CONFIG, INITIAL_CONFIG };
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