nice refactorings

PracticeCalendar.Application/PracticeEvents/Commands/CreatePracticeEventCommand.cs

@@ -0,0 +1,41 @@
+using Mapster;
+using MediatR;
+using PracticeCalendar.Application.PracticeEvents.Queries;
+using PracticeCalendar.Domain.Common.Interfaces;
+using PracticeCalendar.Domain.Entities;
+
+namespace PracticeCalendar.Application.PracticeEvents.Commands
+{
+    public record CreatePracticeEventCommand : IRequest<PracticeEventDto>
+    {
+        public CreatePracticeEventCommand(PracticeEventDto eventDto)
+        {
+            Event = eventDto;
+        }
+
+        public PracticeEventDto Event { get; }
+    }
+
+    public class CreatePracticeEventCommandHandler : IRequestHandler<CreatePracticeEventCommand, PracticeEventDto>
+    {
+        private readonly IRepository<PracticeEvent> eventsRepo;
+
+        public CreatePracticeEventCommandHandler(IRepository<PracticeEvent> eventsRepo)
+        {
+            this.eventsRepo = eventsRepo;
+        }
+
+        public async Task<PracticeEventDto> Handle(CreatePracticeEventCommand request, CancellationToken cancellationToken)
+        {
+            var input = request.Event;
+            var practiceEvent = new PracticeEvent(input.Title, input.Description);
+            foreach (var att in input.Attendees)
+            {
+                practiceEvent.AddAttendee(new Attendee(att.Name, att.EmailAddress));
+            }
+            var result = await eventsRepo.AddAsync(practiceEvent, cancellationToken);
+            await eventsRepo.SaveChangesAsync(cancellationToken);
+            return result.Adapt<PracticeEventDto>();
+        }
+    }
+}