import { pool } from '../pool.js';
import { recordAudit } from './audit_stub.js';
import { triggerEmbed } from '../../jobs/triggers.js';

const FIELDS = ['resource_id','name','upstream_url','version','format','sync_source','local_path','body_text','embedding','last_synced','metadata'];

export async function create(input, actor) {
  const cols = [], vals = [], ph = [];
  let i = 1;
  for (const f of FIELDS) {
    if (input[f] !== undefined) { cols.push(f); vals.push(input[f]); ph.push(`$${i++}`); }
  }
  const { rows: [r] } = await pool.query(
    `INSERT INTO source_docs(${cols.join(',')}) VALUES(${ph.join(',')}) RETURNING *`,
    vals
  );
  await recordAudit(actor, 'create', 'source_doc', r.id, null, r);
  await triggerEmbed('source_doc', r.id);
  return r;
}

export async function getById(id) {
  const { rows: [r] } = await pool.query(`SELECT * FROM source_docs WHERE id=$1`, [id]);
  return r;
}

export async function listByResource(resource_id) {
  const { rows } = await pool.query(
    `SELECT * FROM source_docs WHERE resource_id=$1 ORDER BY name`, [resource_id]
  );
  return rows;
}

export async function update(id, patch, actor) {
  const before = await getById(id);
  const sets = [], vals = [];
  let i = 1;
  for (const f of FIELDS) {
    if (patch[f] !== undefined) { sets.push(`${f}=$${i++}`); vals.push(patch[f]); }
  }
  sets.push(`updated_at=now()`);
  vals.push(id);
  const { rows: [r] } = await pool.query(
    `UPDATE source_docs SET ${sets.join(', ')} WHERE id=$${i} RETURNING *`,
    vals
  );
  await recordAudit(actor, 'update', 'source_doc', id, before, r);
  if (patch.embedding === undefined) await triggerEmbed('source_doc', id);
  return r;
}

export async function del(id, actor) {
  const before = await getById(id);
  await pool.query(`DELETE FROM source_docs WHERE id=$1`, [id]);
  await recordAudit(actor, 'delete', 'source_doc', id, before, null);
}