/**
 * LangGraph Adapter
 *
 * Integrates LangGraph (LangChain's stateful graph execution framework)
 * with the SwarmOrchestrator.
 *
 * LangGraph models agent workflows as directed graphs with typed state,
 * conditional edges, and cycles. This adapter wraps user-supplied graph
 * instances with no hard dependency on the LangGraph package.
 *
 * Usage:
 *   const adapter = new LangGraphAdapter();
 *   adapter.registerGraph('research-flow', myCompiledGraph, {
 *     inputKey: 'messages',
 *     outputKey: 'response',
 *   });
 *
 * @module LangGraphAdapter
 * @version 1.0.0
 */
import { BaseAdapter } from './base-adapter';
import type { AdapterCapabilities, AgentPayload, AgentContext, AgentResult } from '../types/agent-adapter';
/**
 * Minimal interface for a compiled LangGraph graph.
 * Compatible with `StateGraph.compile()` output.
 * Users supply their own LangGraph instance — no hard dependency.
 */
export interface LangGraphRunnable {
    invoke(input: Record<string, unknown>, config?: Record<string, unknown>): Promise<Record<string, unknown>>;
}
/**
 * Streaming variant — optional, for graphs that support streaming.
 */
export interface LangGraphStreamable extends LangGraphRunnable {
    stream(input: Record<string, unknown>, config?: Record<string, unknown>): AsyncIterable<Record<string, unknown>>;
}
/** Configuration for a registered graph agent */
export interface LangGraphAgentConfig {
    /** The compiled graph instance */
    graph: LangGraphRunnable;
    /** State key to populate with the agent payload (default: 'messages') */
    inputKey?: string;
    /** State key to read the result from (default: 'response') */
    outputKey?: string;
    /** Optional thread/session ID for checkpointed graphs */
    threadId?: string;
    /** Per-invocation timeout in ms (default: 60000) */
    timeoutMs?: number;
    /** Additional config passed to graph.invoke() */
    runnableConfig?: Record<string, unknown>;
}
/**
 * Adapter for LangGraph stateful agent graphs.
 *
 * Each registered graph is exposed as a named agent. The adapter
 * handles input mapping, timeout enforcement, and result extraction.
 */
export declare class LangGraphAdapter extends BaseAdapter {
    readonly name = "langgraph";
    readonly version = "1.0.0";
    private graphs;
    get capabilities(): AdapterCapabilities;
    /**
     * Register a compiled LangGraph as a named agent.
     */
    registerGraph(agentId: string, graph: LangGraphRunnable, options?: Omit<LangGraphAgentConfig, 'graph'>): void;
    executeAgent(agentId: string, payload: AgentPayload, _context: AgentContext): Promise<AgentResult>;
    shutdown(): Promise<void>;
}
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