import { Logger } from '@hashgraphonline/standards-sdk';
import { SmartMemoryManager } from '../memory/smart-memory-manager';
import { FormEngine, ToolExecutionResult } from '../forms/form-engine';
import { ToolRegistry, ToolRegistryEntry } from '../core/tool-registry';

/**
 * Session context for tool execution
 */
export interface SessionContext {
    sessionId: string;
    userId?: string;
    timestamp: number;
    conversationId?: string;
}
/**
 * Context passed through execution pipeline
 */
export interface ExecutionContext {
    toolName: string;
    input: unknown;
    session: SessionContext;
    memory: SmartMemoryManager;
    traceId: string;
    toolEntry: ToolRegistryEntry;
}
/**
 * Result of tool execution with metadata
 */
export interface ExecutionResult extends ToolExecutionResult {
    traceId: string;
    executionTime: number;
}
/**
 * ExecutionPipeline handles tool execution coordination
 */
export declare class ExecutionPipeline {
    private logger;
    private toolRegistry;
    private formEngine;
    private memory;
    constructor(toolRegistry: ToolRegistry, formEngine: FormEngine, memory: SmartMemoryManager, logger?: Logger);
    /**
     * Execute a tool through the pipeline
     */
    execute(toolName: string, input: unknown, sessionContext?: SessionContext): Promise<ExecutionResult>;
    /**
     * Execute tool with validation
     */
    executeWithValidation(toolName: string, input: unknown, sessionContext?: SessionContext): Promise<ExecutionResult>;
    /**
     * Process form submission
     */
    processFormSubmission(toolName: string, formId: string, parameters: Record<string, unknown>, sessionContext?: SessionContext): Promise<ExecutionResult>;
    /**
     * Check if form generation is required
     */
    private checkFormGeneration;
    /**
     * Execute tool directly
     */
    private executeToolDirect;
    /**
     * Execute wrapped tool
     */
    private executeWrappedTool;
    /**
     * Handle execution error
     */
    private handleExecutionError;
    /**
     * Build default session context
     */
    private buildDefaultSession;
    /**
     * Get statistics about the pipeline
     */
    getStatistics(): {
        totalMiddleware: number;
        registeredMiddleware: string[];
    };
}