/**
 * Velt SDK adapter.
 *
 * Purpose: High-level Velt SDK wrapper with comprehensive error handling.
 * This is the ONLY place where @veltdev/types and window.Velt may be accessed.
 *
 * Key responsibilities:
 * - Wrap all Velt SDK calls with error handling
 * - Provide clean interface for features layer
 * - Handle SDK unavailability gracefully
 * - Manage subscriptions to Velt events
 *
 * Dependencies:
 * - @veltdev/types (ONLY place allowed to import Velt types)
 * - types/common.ts (for CommentAnnotationContext)
 * - types/velt.ts (for re-exported Velt types)
 * - utils/console.ts (for logging)
 */
import type { CommentAnnotation, CommentElement, Location } from '@veltdev/types';
import type { CommentAnnotationContext } from '@/types/common';
export declare const isVeltAvailable: () => boolean;
/**
 * Gets the Velt comment element from the SDK.
 * Returns null if SDK is unavailable or comment element cannot be accessed.
 *
 * @returns CommentElement or null if unavailable
 */
export declare const getCommentElement: () => CommentElement | null;
/**
 * Adds a comment via the Velt SDK.
 *
 * @param params Object containing context and optional location
 * @returns Promise resolving to CommentAnnotation or null if failed
 */
export declare const addVeltComment: (params: {
    context: CommentAnnotationContext;
    location?: Location;
}) => Promise<{
    annotation: CommentAnnotation | null;
    result: unknown;
}>;
/**
 * Updates the context of an existing annotation in the Velt SDK.
 *
 * @param annotationId The annotation ID to update
 * @param context The new context to set
 */
export declare const updateAnnotationContext: (annotationId: string, context: CommentAnnotationContext) => void;
/**
 * Subscribes to changes in selected annotations from the Velt SDK.
 * Returns an unsubscribe function.
 *
 * @param callback Function called when selected annotations change
 * @param subscriberId Optional unique ID for this subscriber
 * @returns Unsubscribe function
 */
export declare const subscribeToSelectedAnnotations: (callback: (selectedIds: Set<string>) => void, subscriberId?: string) => () => void;