initial commit

Features/Pipeline/Campaign/Cqrs/CreateExpenseHandler.cs

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+using Indotalent.Infrastructure.Database;
+using MediatR;
+using Indotalent.Data.Enums;
+
+namespace Indotalent.Features.Pipeline.Campaign.Cqrs;
+
+public class CreateExpenseRequest
+{
+    public string? CampaignId { get; set; }
+    public string? Title { get; set; }
+    public string? Description { get; set; }
+    public DateTime? ExpenseDate { get; set; }
+    public decimal? Amount { get; set; }
+    public ExpenseStatus Status { get; set; }
+}
+
+public class CreateExpenseResponse
+{
+    public string? Id { get; set; }
+    public string? Title { get; set; }
+}
+
+public record CreateExpenseCommand(CreateExpenseRequest Data) : IRequest<CreateExpenseResponse>;
+
+public class CreateExpenseHandler : IRequestHandler<CreateExpenseCommand, CreateExpenseResponse>
+{
+    private readonly AppDbContext _context;
+    public CreateExpenseHandler(AppDbContext context) => _context = context;
+
+    public async Task<CreateExpenseResponse> Handle(CreateExpenseCommand request, CancellationToken cancellationToken)
+    {
+        var entity = new Data.Entities.Expense
+        {
+            CampaignId = request.Data.CampaignId,
+            Title = request.Data.Title,
+            Description = request.Data.Description,
+            ExpenseDate = request.Data.ExpenseDate,
+            Amount = request.Data.Amount,
+            Status = request.Data.Status
+        };
+
+        _context.Expense.Add(entity);
+        await _context.SaveChangesAsync(cancellationToken);
+
+        return new CreateExpenseResponse
+        {
+            Id = entity.Id,
+            Title = entity.Title
+        };
+    }
+}