Added an API to delete existing contact category

Marco.Pms.Services/Controllers/MasterController.cs

@@ -713,7 +713,8 @@ namespace Marco.Pms.Services.Controllers
         [HttpDelete("contact-category/{id}")]
         public async Task<IActionResult> DeletecontactCategoryMaster(Guid id)
         {
-            return Ok();
+            var response = await _masterHelper.DeleteContactCategory(id);
+            return Ok(response);
         }
 
         // -------------------------------- Contact Tag  --------------------------------

Marco.Pms.Services/Helpers/MasterHelper.cs

@@ -63,6 +63,39 @@ namespace Marco.Pms.Services.Helpers
             _logger.LogInfo("{count} contact categoires are fetched by Employee with ID {LoggedInEmployeeId}", contactCategories.Count, LoggedInEmployee.Id);
             return ApiResponse<object>.SuccessResponse(contactCategories, System.String.Format("{0} contact categories fetched successfully", contactCategories.Count), 200);
         }
+        public async Task<ApiResponse<object>> DeleteContactCategory(Guid id)
+        {
+            Guid tenantId = _userHelper.GetTenantId();
+            var LoggedInEmployee = await _userHelper.GetCurrentEmployeeAsync();
+            ContactCategoryMaster? contactCategory = await _context.ContactCategoryMasters.FirstOrDefaultAsync(c => c.Id == id && c.TenantId == tenantId);
+            if (contactCategory != null)
+            {
+                List<Contact>? existingContacts = await _context.Contacts.AsNoTracking().Where(c => c.ContactCategoryId == contactCategory.Id).ToListAsync();
+                if (existingContacts.Count > 0)
+                {
+                    List<Contact>? contacts = new List<Contact>();
+                    foreach (var contact in existingContacts)
+                    {
+                        contact.ContactCategoryId = null;
+                        contacts.Add(contact);
+                    }
+                    _context.Contacts.UpdateRange(contacts);
+                }
+                _context.ContactCategoryMasters.Remove(contactCategory);
+
+                _context.DirectoryUpdateLogs.Add(new DirectoryUpdateLog
+                {
+                    RefereanceId = id,
+                    UpdatedById = LoggedInEmployee.Id,
+                    UpdateAt = DateTime.UtcNow
+                });
+                await _context.SaveChangesAsync();
+                _logger.LogInfo("Employee {EmployeeId} deleted contact category {ContactCategoryId}", LoggedInEmployee.Id, id);
+            }
+
+            _logger.LogWarning("Employee {EmployeeId} tries to delete Category {CategoryId} but not found in database", LoggedInEmployee.Id, id);
+            return ApiResponse<object>.SuccessResponse(new { }, "Category deleted successfully", 200);
+        }
 
         // -------------------------------- Contact Tag  --------------------------------