import { DELETE_BY_COMPANY_AND_SI } from '../../providers/mssql/queries/unit.js';
import resolveSelectedCompanyAccess from '../companyuser/resolveSelectedCompanyAccess.js';

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

  /**
   * Deletes a unit for the user's selected company by its SI code.
   *
   * @param {number} googleAuthId - The id of the Google auth user.
   * @param {string} si - The SI code of the unit to delete.
   * @returns {Promise<void>}
   * @throws {Error} If the unit is not found.
   *
   * @example
   * await store.unit.delete(42, 'l');
   */
  return async (googleAuthId, si) => {
    if (!si?.trim()) {
      throw new Error('Unit not found');
    }

    const { companyId } = await access(googleAuthId);

    try {
      const result = await pool
        .request()
        .input('companyId', companyId)
        .input('si', si.trim())
        .query(DELETE_BY_COMPANY_AND_SI);

      if (!result.rowsAffected[0]) {
        throw new Error('Unit not found');
      }
    } catch (err) {
      if (err.number === 547) {
        throw new Error('Unit in use');
      }
      throw err;
    }
  };
}