import { pool } from '../pool.js';

export async function append(conversation_id, { role, body, agent_id, metadata }) {
  const { rows: [r] } = await pool.query(
    `INSERT INTO messages(conversation_id, role, body, agent_id, metadata)
     VALUES($1,$2,$3,$4,$5) RETURNING *`,
    [conversation_id, role, body, agent_id || null, metadata || {}]
  );
  return r;
}

export async function listByConversation(conversation_id, { limit = 1000 } = {}) {
  const { rows } = await pool.query(
    `SELECT * FROM messages WHERE conversation_id=$1 ORDER BY created_at LIMIT $2`,
    [conversation_id, limit]
  );
  return rows;
}