Add update order method

ManagerService/Controllers/SectionController.cs

@@ -462,6 +462,52 @@ namespace ManagerService.Controllers
             }
         }
 
+        /// <summary>
+        /// Update sections order
+        /// </summary>
+        /// <param name="updatedSectionsOrder">New sections order</param>  
+        [ProducesResponseType(typeof(string), 200)]
+        [ProducesResponseType(typeof(string), 400)]
+        [ProducesResponseType(typeof(string), 404)]
+        [ProducesResponseType(typeof(string), 500)]
+        [HttpPut("order")]
+        public ObjectResult UpdateOrder([FromBody] List<SectionDTO> updatedSectionsOrder)
+        {
+            try
+            {
+                if (updatedSectionsOrder == null)
+                    throw new ArgumentNullException("Sections param is null");
+
+                foreach (var section in updatedSectionsOrder)
+                {
+                    if (!_sectionService.IsExist(section.Id))
+                        throw new KeyNotFoundException($"Section {section.Label} with id {section.Id} does not exist");
+                }
+
+                foreach (var updatedSection in updatedSectionsOrder)
+                {
+                    Section section = _sectionService.GetById(updatedSection.Id);
+                    section.Order = updatedSection.Order;
+
+                    _sectionService.Update(section.Id, section);
+                }
+
+                return new ObjectResult("Sections order has been successfully modified") { StatusCode = 200 };
+            }
+            catch (ArgumentNullException ex)
+            {
+                return new BadRequestObjectResult(ex.Message) { };
+            }
+            catch (KeyNotFoundException ex)
+            {
+                return new NotFoundObjectResult(ex.Message) { };
+            }
+            catch (Exception ex)
+            {
+                return new ObjectResult(ex.Message) { StatusCode = 500 };
+            }
+        }
+
 
         /// <summary>
         /// Delete a section