import { BaseMessage } from '@langchain/core/messages';
import { DynamicStructuredTool } from '@langchain/core/tools';
import { Message } from '../../../backend/message.cjs';
import '../../../internals/serializable.cjs';
import '../../../internals/types.cjs';
import '../../../internals/helpers/guards.cjs';
import 'ai';

/**
 * Copyright 2025 © BeeAI a Series of LF Projects, LLC
 * SPDX-License-Identifier: Apache-2.0
 */

/**
 * Converts BeeAI Messages to LangChain BaseMessage format.
 * Handles UserMessage, AssistantMessage, ToolMessage, and SystemMessage.
 * ToolMessages with multiple results are split into separate messages with ID suffixes.
 * Unknown types fallback to LCUserMessage.
 * @param messages - Array of BeeAI messages
 * @returns Array of LangChain BaseMessage objects
 */
declare function toLCMessages(messages: Message[]): BaseMessage[];
/**
 * Converts LangChain BaseMessages to BeeAI Message format.
 * Handles LCUserMessage, LCAIMessage, AIMessageChunk, LCSystemMessage, and LCToolMessage.
 * Throws ValueError for unknown message types.
 * @param messages - Array of LangChain messages
 * @returns Array of BeeAI Message objects
 */
declare function toBeeAIMessages(messages: BaseMessage[]): Message[];
/**
 * Converts a BeeAI Tool to LangChain DynamicStructuredTool.
 * Wraps the tool's run method and extracts text content from results.
 * @param tool - The BeeAI tool to convert
 * @returns Promise resolving to LangChain DynamicStructuredTool
 */
declare function beeaiToolToLCTool(tool: any): Promise<DynamicStructuredTool>;

export { beeaiToolToLCTool, toBeeAIMessages, toLCMessages };