/**
 * @module queue/QueueProviderFactory
 * @description Factory for creating queue provider instances
 */
import { QueueProviderType } from '../types/queue.types.js';
import type { IQueueProvider, QueueProviderConfig, InMemoryQueueConfig, RabbitMQQueueConfig } from '../types/queue.types.js';
/**
 * Factory options for creating queue providers
 */
export interface QueueProviderFactoryOptions {
    /** Provider type */
    type: QueueProviderType;
    /** Provider-specific configuration */
    config: QueueProviderConfig;
}
/**
 * Factory for creating queue provider instances
 * Supports switching between in-memory and RabbitMQ implementations
 */
export declare class QueueProviderFactory {
    /**
     * Create a queue provider instance
     * @param options - Factory options
     * @returns Queue provider instance
     */
    static create(options: QueueProviderFactoryOptions): IQueueProvider;
    /**
     * Create in-memory queue provider
     * @param config - In-memory queue configuration
     * @returns In-memory queue provider
     */
    private static createInMemoryProvider;
    /**
     * Create RabbitMQ queue provider
     * @param config - RabbitMQ queue configuration
     * @returns RabbitMQ queue provider
     */
    private static createRabbitMQProvider;
    /**
     * Create provider from environment variables
     * @returns Queue provider instance
     */
    static createFromEnv(): IQueueProvider;
}
/**
 * Helper function to create in-memory provider with default config
 * @param config - Optional configuration overrides
 * @returns In-memory queue provider
 */
export declare function createInMemoryProvider(config?: Partial<InMemoryQueueConfig>): IQueueProvider;
/**
 * Helper function to create RabbitMQ provider with config
 * @param config - RabbitMQ configuration
 * @returns RabbitMQ queue provider
 */
export declare function createRabbitMQProvider(config: RabbitMQQueueConfig): IQueueProvider;