import type { SonarQubeHealthStatus, SonarQubeSystemStatus } from '../types/index.js';
import { BaseDomain } from './base.js';
/**
 * Domain module for system-related operations
 */
export declare class SystemDomain extends BaseDomain {
    /**
     * Gets the health status of the SonarQube instance using V2 API
     *
     * The V2 API response structure differs from V1:
     * - V2 returns `status` field instead of `health`
     * - V2 includes optional `nodes` array for clustered setups
     * - Each node can have its own `causes` array for health issues
     *
     * This method transforms the V2 response to maintain backward compatibility
     * with the existing SonarQubeHealthStatus interface.
     *
     * @returns Promise with the health status containing aggregated causes from all nodes
     */
    getHealth(): Promise<SonarQubeHealthStatus>;
    /**
     * Extracts and aggregates causes from all nodes in a clustered SonarQube setup
     *
     * @param nodes - Optional array of nodes from V2 health API response
     * @returns Array of all causes from all nodes, or empty array if no nodes/causes
     * @private
     */
    private extractCausesFromNodes;
    /**
     * Gets the system status of the SonarQube instance
     * @returns Promise with the system status
     */
    getStatus(): Promise<SonarQubeSystemStatus>;
    /**
     * Pings the SonarQube instance
     * @returns Promise with the ping response
     */
    ping(): Promise<string>;
}