import { ICalendarEvent } from '../types/CalendarTypes';
import { IEventRepository, UpdateSource } from './IEventRepository';
import { IndexedDBService } from '../storage/IndexedDBService';
import { OperationQueue } from '../storage/OperationQueue';
/**
 * IndexedDBEventRepository
 * Offline-first repository using IndexedDB as single source of truth
 *
 * All CRUD operations:
 * - Save to IndexedDB immediately (always succeeds)
 * - Add to sync queue if source is 'local'
 * - Background SyncManager processes queue to sync with API
 */
export declare class IndexedDBEventRepository implements IEventRepository {
    private indexedDB;
    private queue;
    constructor(indexedDB: IndexedDBService, queue: OperationQueue);
    /**
     * Load all events from IndexedDB
     * Ensures IndexedDB is initialized and seeded on first call
     */
    loadEvents(): Promise<ICalendarEvent[]>;
    /**
     * Create a new event
     * - Generates ID
     * - Saves to IndexedDB
     * - Adds to queue if local (needs sync)
     */
    createEvent(event: Omit<ICalendarEvent, 'id'>, source?: UpdateSource): Promise<ICalendarEvent>;
    /**
     * Update an existing event
     * - Updates in IndexedDB
     * - Adds to queue if local (needs sync)
     */
    updateEvent(id: string, updates: Partial<ICalendarEvent>, source?: UpdateSource): Promise<ICalendarEvent>;
    /**
     * Delete an event
     * - Removes from IndexedDB
     * - Adds to queue if local (needs sync)
     */
    deleteEvent(id: string, source?: UpdateSource): Promise<void>;
    /**
     * Generate unique event ID
     * Format: {timestamp}-{random}
     */
    private generateEventId;
}