initial commit

Core/Application/Features/ExpenseManager/Commands/DeleteExpense.cs

@@ -0,0 +1,60 @@
+using Application.Common.Repositories;
+using Domain.Entities;
+using FluentValidation;
+using MediatR;
+
+namespace Application.Features.ExpenseManager.Commands;
+
+public class DeleteExpenseResult
+{
+    public Expense? Data { get; set; }
+}
+
+public class DeleteExpenseRequest : IRequest<DeleteExpenseResult>
+{
+    public string? Id { get; init; }
+    public string? DeletedById { get; init; }
+}
+
+public class DeleteExpenseValidator : AbstractValidator<DeleteExpenseRequest>
+{
+    public DeleteExpenseValidator()
+    {
+        RuleFor(x => x.Id).NotEmpty();
+    }
+}
+
+public class DeleteExpenseHandler : IRequestHandler<DeleteExpenseRequest, DeleteExpenseResult>
+{
+    private readonly ICommandRepository<Expense> _repository;
+    private readonly IUnitOfWork _unitOfWork;
+
+    public DeleteExpenseHandler(
+        ICommandRepository<Expense> repository,
+        IUnitOfWork unitOfWork
+    )
+    {
+        _repository = repository;
+        _unitOfWork = unitOfWork;
+    }
+
+    public async Task<DeleteExpenseResult> Handle(DeleteExpenseRequest request, CancellationToken cancellationToken)
+    {
+        var entity = await _repository.GetAsync(request.Id ?? string.Empty, cancellationToken);
+
+        if (entity == null)
+        {
+            throw new Exception($"Entity not found: {request.Id}");
+        }
+
+        entity.UpdatedById = request.DeletedById;
+
+        _repository.Delete(entity);
+        await _unitOfWork.SaveAsync(cancellationToken);
+
+        return new DeleteExpenseResult
+        {
+            Data = entity
+        };
+    }
+}