Added package management

LiteCharms.Features/CartPackages/Commands/AddPackageItemsCommand.cs

@@ -0,0 +1,25 @@
+namespace LiteCharms.Features.CartPackages.Commands;
+
+public class AddPackageItemCommand : IRequest<Result<Guid>>
+{
+    public Guid PackageId { get; set; }
+
+    public Guid ProductPriceId { get; set; }
+
+    private AddPackageItemCommand(Guid packageId, Guid productPriceId)
+    {
+        PackageId = packageId;
+        ProductPriceId = productPriceId;
+    }
+
+    public static AddPackageItemCommand Create(Guid packageId, Guid productPriceId)
+    {
+        if (packageId == Guid.Empty)
+            throw new ArgumentException("Package id is required", nameof(packageId));
+
+        if (productPriceId == Guid.Empty)
+            throw new ArgumentException("Product price id is required", nameof(productPriceId));
+
+        return new(packageId, productPriceId);
+    }
+}