adjust patch employee

internal/modules/master/employees/services/employees.service.go

@@ -153,16 +153,80 @@ func (s employeesService) UpdateOne(c *fiber.Ctx, req *validation.Update, id uin
 	}
 
 	updateBody := make(map[string]any)
+	var (
+		kandangIDs        []uint
+		needKandangUpdate bool
+	)
 
 	if req.Name != nil {
-		updateBody["name"] = *req.Name
+		trimmed := strings.TrimSpace(*req.Name)
+		if trimmed == "" {
+			return nil, fiber.NewError(fiber.StatusBadRequest, "name cannot be empty")
+		}
+
+		if _, err := s.Repository.First(c.Context(), func(db *gorm.DB) *gorm.DB {
+			return db.Where("LOWER(name) = ? AND id <> ?", strings.ToLower(trimmed), id)
+		}); err == nil {
+			return nil, fiber.NewError(fiber.StatusBadRequest, "employee already exists")
+		} else if !errors.Is(err, gorm.ErrRecordNotFound) {
+			s.Log.Errorf("Failed checking employee uniqueness: %+v", err)
+			return nil, err
+		}
+
+		updateBody["name"] = trimmed
 	}
 
-	if len(updateBody) == 0 {
+	if req.IsActive != nil {
+		updateBody["is_active"] = *req.IsActive
+	}
+
+	if req.KandangIDs != nil {
+		ids, err := parseKandangIDs(*req.KandangIDs)
+		if err != nil {
+			return nil, fiber.NewError(fiber.StatusBadRequest, err.Error())
+		}
+
+		kandangIDs = ids
+		needKandangUpdate = true
+	}
+
+	if len(updateBody) == 0 && !needKandangUpdate {
 		return s.GetOne(c, id)
 	}
 
-	if err := s.Repository.PatchOne(c.Context(), id, updateBody, nil); err != nil {
+	if err := s.Repository.DB().Transaction(func(tx *gorm.DB) error {
+		repoTx := s.Repository.WithTx(tx)
+
+		if len(updateBody) > 0 {
+			if err := repoTx.PatchOne(c.Context(), id, updateBody, nil); err != nil {
+				return err
+			}
+		}
+
+		if needKandangUpdate {
+			if err := tx.WithContext(c.Context()).
+				Where("employee_id = ?", id).
+				Delete(&entity.EmployeeKandang{}).Error; err != nil {
+				return err
+			}
+
+			relations := make([]entity.EmployeeKandang, 0, len(kandangIDs))
+			for _, kandangID := range kandangIDs {
+				relations = append(relations, entity.EmployeeKandang{
+					EmployeeId: id,
+					KandangId:  kandangID,
+				})
+			}
+
+			if len(relations) > 0 {
+				if err := tx.WithContext(c.Context()).Create(&relations).Error; err != nil {
+					return err
+				}
+			}
+		}
+
+		return nil
+	}); err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
 			return nil, fiber.NewError(fiber.StatusNotFound, "Employees not found")
 		}