/**
 * Command Bus Implementation
 * Handles command execution with middleware support
 */
import { Result, ILogger, IMiddleware } from '../../core/interfaces/core-abstractions.js';
export interface CommandHandler<TParams = unknown, TResult = unknown> {
    handle(params: TParams): Promise<Result<TResult>>;
}
export declare class CommandBus {
    private logger;
    private handlers;
    private middleware;
    constructor(logger: ILogger);
    /**
     * Register a command handler
     */
    register<TParams, TResult>(commandName: string, handler: CommandHandler<TParams, TResult>): void;
    /**
     * Execute a command
     */
    execute<TParams, TResult>(commandName: string, params: TParams): Promise<Result<TResult>>;
    /**
     * Add middleware
     */
    use(middleware: IMiddleware): void;
    /**
     * Apply middleware chain
     */
    private applyMiddleware;
    /**
     * Check if a handler is registered
     */
    hasHandler(commandName: string): boolean;
    /**
     * Clear all handlers
     */
    clear(): void;
}
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