/**
 * Node Execution Service
 * Handles fetching and managing node execution information from the backend
 */
import type { NodeExecutionInfo } from '../types/index.js';
/**
 * Service for managing node execution information
 */
export declare class NodeExecutionService {
    private static instance;
    private cache;
    private cacheTimeout;
    private lastFetch;
    private apiUnavailable;
    private apiUnavailableUntil;
    private constructor();
    static getInstance(): NodeExecutionService;
    /**
     * Get execution information for a specific node from pipeline data
     */
    getNodeExecutionInfo(nodeId: string, pipelineId?: string): Promise<NodeExecutionInfo | null>;
    /**
     * Get execution information for multiple nodes from pipeline data
     */
    getMultipleNodeExecutionInfo(nodeIds: string[], pipelineId?: string): Promise<Record<string, NodeExecutionInfo>>;
    /**
     * Get all node execution counts
     */
    getAllNodeExecutionCounts(): Promise<Record<string, number>>;
    /**
     * Get cached execution info for a node
     */
    getCachedNodeExecutionInfo(nodeId: string): NodeExecutionInfo | null;
    /**
     * Clear cache for a specific node
     */
    clearNodeCache(nodeId: string): void;
    /**
     * Clear all cache
     */
    clearAllCache(): void;
    /**
     * Check if cache is stale
     */
    isCacheStale(): boolean;
    /**
     * Update execution info for a node (for real-time updates)
     */
    updateNodeExecutionInfo(nodeId: string, executionInfo: Partial<NodeExecutionInfo>): void;
    /**
     * Map job status to execution status
     */
    private mapJobStatusToExecutionStatus;
    /**
     * Batch update execution info for multiple nodes
     */
    updateMultipleNodeExecutionInfo(updates: Record<string, Partial<NodeExecutionInfo>>): void;
    /**
     * Reset API availability status (useful for testing or when API becomes available)
     */
    resetApiAvailability(): void;
}
export declare const nodeExecutionService: NodeExecutionService;