import resolveSelectedCompanyAccess from '../companyuser/resolveSelectedCompanyAccess.js';
import { loadDelivery } from './helpers.js';

export default function getById(pool) {
  const access = resolveSelectedCompanyAccess(pool);

  /**
   * Returns a single delivery by its id within the user's selected company.
   *
   * @param {number} googleAuthId - The id of the Google auth user.
   * @param {number} id - The id of the delivery.
   * @returns {Promise<{id: number, number: string, type: string, entityId: number, externalNumber: string|null, date: string, lines: Array<object>}>} The delivery.
   * @throws {Error} If the delivery is not found.
   *
   * @example
   * const delivery = await store.delivery.getById(42, 5);
   * // => { id, number, type, entityId, externalNumber, date, lines: [...] }
   */
  return async (googleAuthId, id) => {
    if (!Number.isFinite(id)) {
      throw new Error('Delivery not found');
    }

    const { companyId } = await access(googleAuthId);

    const delivery = await loadDelivery(pool, null, companyId, id);
    if (!delivery) {
      throw new Error('Delivery not found');
    }
    return delivery;
  };
}