/**
 * Base Queue Manager
 *
 * Abstract base class for all queue managers providing common functionality
 * and enforcing singleton pattern.
 */
import { QueueSystem } from './QueueSystem';
import type { QueueConfig, QueueStats, QueueOperation } from '@plyaz/types/api';
import { EventEmitter } from 'events';
/**
 * Base class for queue managers
 */
export declare abstract class BaseQueueManager<T = unknown> extends EventEmitter {
    protected queue: QueueSystem<T>;
    protected config: QueueConfig;
    protected constructor(config: QueueConfig);
    /**
     * Enqueue an operation
     */
    enqueue(operation: T): Promise<string>;
    /**
     * Dequeue the next operation
     */
    dequeue(): T | null;
    /**
     * Get queue size
     */
    size(): number;
    /**
     * Get all operations (for stats/debugging)
     */
    getAllOperations(): T[];
    /**
     * Get queue statistics
     */
    getStats(): QueueStats;
    /**
     * Reset the queue
     */
    reset(): void;
    /**
     * Destroy the queue
     */
    destroy(): void;
    /**
     * Abstract method to create queue operation from input
     */
    protected abstract createQueueOperation(operation: T): QueueOperation<T>;
    /**
     * Abstract method to process operations
     */
    protected abstract processOperation(operation: T): Promise<void>;
}
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