import type { AgentSessionState } from '../types';
export type AgentRuntimeAdapterKey = 'langgraph' | 'langchain' | 'workflow-devkit';
export interface AgentCheckpointEnvelope {
    sessionId: string;
    threadId?: string;
    state: AgentSessionState;
    checkpointId?: string;
    createdAt: Date;
}
export interface AgentCheckpointPort {
    save(envelope: AgentCheckpointEnvelope): Promise<void>;
    load(sessionId: string): Promise<AgentCheckpointEnvelope | null>;
    delete(sessionId: string): Promise<void>;
}
export interface AgentSuspendResumePort {
    suspend(params: {
        sessionId: string;
        reason: string;
        metadata?: Record<string, string>;
    }): Promise<void>;
    resume(params: {
        sessionId: string;
        input?: string;
        metadata?: Record<string, string>;
    }): Promise<void>;
}
export interface AgentRuntimeMiddlewareHooks<TState = unknown> {
    beforeModel?: (state: TState) => Promise<TState | undefined> | TState | undefined;
    afterModel?: (state: TState) => Promise<TState | undefined> | TState | undefined;
}
export interface AgentRuntimeAdapterBundle<TState = unknown> {
    key: AgentRuntimeAdapterKey;
    checkpoint?: AgentCheckpointPort;
    suspendResume?: AgentSuspendResumePort;
    middleware?: AgentRuntimeMiddlewareHooks<TState>;
}