public IActionResult DeleteUniteLegale(String siren)
        {
            UniteLegale existingUniteLegale = _context.UniteLegale.Include(u => u.etablissements)
                                              .FirstOrDefault(u => u.siren == siren);

            if (existingUniteLegale == null)
            {
                return(BadRequest());
            }

            _context.RemoveRange(existingUniteLegale.etablissements);
            _context.Remove(existingUniteLegale);
            _context.SaveChanges();
            return(Ok());
        }
        public IActionResult SaveUniteLegale([FromBody] List <String> sirets)
        {
            string               siren                = sirets.First().Substring(0, 9);
            UniteLegale          uniteLegale          = _apiClient.GetUniteLegale(siren);
            List <Etablissement> etablissementBySiret = new List <Etablissement>();

            foreach (string siret in sirets)
            {
                Etablissement selectedEtablissement = uniteLegale.etablissements.FirstOrDefault(etablissement => etablissement.siret == siret);
                Etablissement existingEtablissement = _context.Etablissements.FirstOrDefault(e => e.siret == selectedEtablissement.siret);

                if (selectedEtablissement != null)
                {
                    if (existingEtablissement != null)
                    {
                        return(BadRequest(StatusCode(404)));
                    }
                    else
                    {
                        etablissementBySiret.Add(selectedEtablissement);
                    }
                }
            }
            uniteLegale.etablissements = etablissementBySiret;
            UniteLegale existingUniteLegale = _context.UniteLegale.Include(u => u.etablissements).FirstOrDefault(u => u.siren == uniteLegale.siren);

            if (existingUniteLegale != null)
            {
                return(BadRequest(StatusCode(404)));
            }
            else
            {
                _context.Add(uniteLegale);
            }

            _context.SaveChanges();
            return(Ok());
        }