nice refactorings

PracticeCalendar.Application/PracticeEvents/Commands/DeletePracticeEventCommand.cs

@@ -0,0 +1,39 @@
+using MediatR;
+using PracticeCalendar.Domain.Common.Interfaces;
+using PracticeCalendar.Domain.Entities;
+using PracticeCalendar.Domain.Exceptions;
+
+namespace PracticeCalendar.Application.PracticeEvents.Commands
+{
+    public record DeletePracticeEventCommand : IRequest
+    {
+        public DeletePracticeEventCommand(int practiceEventId)
+        {
+            PracticeEventId = practiceEventId;
+        }
+
+        public int PracticeEventId { get; }
+    }
+    public class DeletePracticeEventCommandHandler : IRequestHandler<DeletePracticeEventCommand>
+    {
+        private readonly IRepository<PracticeEvent> eventsRepo;
+
+        public DeletePracticeEventCommandHandler(IRepository<PracticeEvent> eventsRepo)
+        {
+            this.eventsRepo = eventsRepo;
+        }
+
+        public async Task<Unit> Handle(DeletePracticeEventCommand request, CancellationToken cancellationToken)
+        {
+            var org = await eventsRepo.GetByIdAsync(request.PracticeEventId, cancellationToken);
+            if (org == null)
+            {
+                throw new PracticeEventNotFoundException();
+            }
+            await eventsRepo.DeleteAsync(org, cancellationToken);
+            await eventsRepo.SaveChangesAsync(cancellationToken);
+            
+            return Unit.Value;
+        }
+    }
+}