Navigate to variation list when variable product is selected

Author: rachelmcr

WooCommerce/Classes/ViewRelated/Orders/Order Creation/ProductsSection/AddProductToOrder.swift

@@ -57,7 +57,9 @@ struct AddProductToOrder: View {
     @ViewBuilder private func createProductRow(rowViewModel: ProductRowViewModel) -> some View {
         if rowViewModel.numberOfVariations > 0 {
             NavigationLink {
-                // TODO: Navigate to variation list
+                if let addVariationToOrderVM = viewModel.getVariationsViewModel(for: rowViewModel.productOrVariationID) {
+                    AddProductVariationToOrder(isPresented: $isPresented, viewModel: addVariationToOrderVM)
+                }
             } label: {
                 ProductRow(viewModel: rowViewModel)
             }

WooCommerce/Classes/ViewRelated/Orders/Order Creation/ProductsSection/AddProductToOrderViewModel.swift

@@ -82,6 +82,15 @@ final class AddProductToOrderViewModel: ObservableObject {
         }
         onProductSelected?(selectedProduct)
     }
+
+    /// Get the view model for a list of product variations to add to the order
+    ///
+    func getVariationsViewModel(for productID: Int64) -> AddProductVariationToOrderViewModel? {
+        guard let variableProduct = products.first(where: { $0.productID == productID }) else {
+            return nil
+        }
+        return AddProductVariationToOrderViewModel(siteID: siteID, product: variableProduct)
+    }
 }
 
 // MARK: - SyncingCoordinatorDelegate & Sync Methods