import { GET_BY_ID, SET_ON, LIST_CATEGORY_IDS } from '../../sql/posterminal.js';
import resolveSelectedCompanyAccess from '../companyuser/resolveSelectedCompanyAccess.js';

/**
 * Assigns a category to a posterminal (turns it on for that category).
 *
 * @param {object} pool - The mssql connection pool.
 * @returns {Function} An async function that assigns a category to a posterminal.
 *
 * @example
 * const fn = setOn(pool);
 * const result = await fn(42, 5, 9);
 * // => { id, categoryIds: [9, ...] }
 */
export default function setOn(pool) {
  const access = resolveSelectedCompanyAccess(pool);

  return async (googleAuthId, posterminalId, categoryId) => {
    if (!Number.isFinite(posterminalId) || !Number.isFinite(categoryId)) {
      throw new Error('Invalid posterminal or category');
    }

    const { companyId } = await access(googleAuthId);

    const existing = await pool
      .request()
      .input('id', posterminalId)
      .query(GET_BY_ID);

    if (!existing.recordset[0] || existing.recordset[0].companyId !== companyId) {
      throw new Error('Posterminal not found');
    }

    await pool
      .request()
      .input('posterminalId', posterminalId)
      .input('categoryId', categoryId)
      .query(SET_ON);

    const result = await pool
      .request()
      .input('posterminalId', posterminalId)
      .query(LIST_CATEGORY_IDS);

    return {
      id: posterminalId,
      categoryIds: result.recordset.map((r) => r.categoryId),
    };
  };
}