import { PromptTemplate } from "@langchain/core/prompts";

import { LLMChain, LLMChainInput } from "./llm_chain.js";

import { BufferMemory } from "../memory/buffer_memory.js";

import { Optional } from "../types/type-utils.js";

export const DEFAULT_TEMPLATE = `The following is a friendly conversation between a human and an AI. The AI is talkative and provides lots of specific details from its context. If the AI does not know the answer to a question, it truthfully says it does not know.

Current conversation:

{history}

Human: {input}

AI:`;

/**

* A class for conducting conversations between a human and an AI. It

* extends the {@link LLMChain} class.

* @example

* ```typescript

* const model = new ChatOpenAI({});

* const chain = new ConversationChain({ llm: model });

*

* // Sending a greeting to the conversation chain

* const res1 = await chain.call({ input: "Hi! I'm Jim." });

* console.log({ res1 });

*

* // Following up with a question in the conversation

* const res2 = await chain.call({ input: "What's my name?" });

* console.log({ res2 });

* ```

*/

export class ConversationChain extends LLMChain {

}