import { ORDER_TYPE } from '../../sql/manifestDoc.js';
import resolveSelectedCompanyAccess from '../companyuser/resolveSelectedCompanyAccess.js';
import { loadDoc } from '../manifestDoc/helpers.js';

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

  /**
   * Returns a single order 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 order.
   * @returns {Promise<{id: number, number: string, type: string, entityId: number|null, externalNumber: string|null, date: string, lines: Array<{id: number, sku: string|null, name: string|null, pu: number, amount: number, net: number, rebate: number, taxrate: number, comment: string|null}>}>} The order with its lines.
   * @throws {Error} If the order is not found.
   *
   * @example
   * const order = await store.order.getById(42, 5);
   * // => { id, number, type, entityId, externalNumber, date, lines: [...] }
   */
  return async (googleAuthId, id) => {
    if (!Number.isFinite(id)) {
      throw new Error('Order not found');
    }

    const { companyId } = await access(googleAuthId);

    const doc = await loadDoc(pool, null, { type: ORDER_TYPE, companyId, id });
    if (!doc) {
      throw new Error('Order not found');
    }
    return doc;
  };
}