initial commit

Features/Purchase/PurchaseOrder/Cqrs/DeletePurchaseOrderItemHandler.cs

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+using Indotalent.Infrastructure.Database;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Indotalent.Shared.Utils;
+
+namespace Indotalent.Features.Purchase.PurchaseOrder.Cqrs;
+
+public record DeletePurchaseOrderItemCommand(string Id) : IRequest<bool>;
+
+public class DeletePurchaseOrderItemHandler : IRequestHandler<DeletePurchaseOrderItemCommand, bool>
+{
+    private readonly AppDbContext _context;
+    public DeletePurchaseOrderItemHandler(AppDbContext context) => _context = context;
+
+    public async Task<bool> Handle(DeletePurchaseOrderItemCommand request, CancellationToken cancellationToken)
+    {
+        var entity = await _context.PurchaseOrderItem
+            .FirstOrDefaultAsync(x => x.Id == request.Id, cancellationToken);
+
+        if (entity == null) return false;
+
+        var orderId = entity.PurchaseOrderId;
+
+        _context.PurchaseOrderItem.Remove(entity);
+        await _context.SaveChangesAsync(cancellationToken);
+
+        if (!string.IsNullOrEmpty(orderId))
+        {
+            PurchaseOrderHelper.Recalculate(_context, orderId);
+        }
+
+        return true;
+    }
+}