import { BridgeDaemon } from '../bridge/daemon';
import { HandrailsClient } from '../handrails/client';
interface WorkflowNode {
    id: number;
    node_type: string;
    name: string;
    config: any;
}
interface WorkflowEdge {
    id: number;
    source_node_id: number;
    target_node_id: number;
    condition?: {
        output_key: string;
        equals: string;
    };
}
interface WorkflowWithGraph {
    id: number;
    name: string;
    nodes: WorkflowNode[];
    edges: WorkflowEdge[];
}
export declare class WorkflowEngine {
    private bridge;
    private client;
    private context;
    private pendingUserResponses;
    constructor(bridge: BridgeDaemon, client: HandrailsClient);
    execute(workflow: WorkflowWithGraph, runId: string, input: Record<string, any>): Promise<void>;
    handleUserResponse(runId: string, nodeId: number, response: string): void;
    private executeNode;
    private executeTrigger;
    private executeContext;
    private executeDecision;
    private executeAction;
    private executeLlm;
    private executeOutput;
    private renderTemplate;
    private buildContextString;
    private waitForUserResponse;
    private topologicalSort;
}
export {};