Add simulated networking action for remote address update

Author: ealeksandrov

WooCommerce/Classes/ViewRelated/Orders/Order Details/Address Edit/EditAddressForm.swift

@@ -150,7 +150,9 @@ struct EditAddressForm: View {
         switch viewModel.navigationTrailingItem {
         case .done(let enabled):
             Button(Localization.done) {
-                // TODO: update remote address
+                viewModel.updateRemoteAddress(onFinish: { success in
+                    // TODO: dismiss on success
+                })
             }
             .disabled(!enabled)
         case .loading:

WooCommerce/Classes/ViewRelated/Orders/Order Details/Address Edit/EditAddressFormViewModel.swift

@@ -55,6 +55,18 @@ final class EditAddressFormViewModel: ObservableObject {
     func createCountryViewModel() -> CountrySelectorViewModel {
         CountrySelectorViewModel(siteID: siteID)
     }
+
+    /// Update the address remotely and invoke a completion block when finished
+    ///
+    func updateRemoteAddress(onFinish: @escaping (Bool) -> Void) {
+        // TODO: perform network request
+        // TODO: add success/failure notice
+        performingNetworkRequest.send(true)
+        DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
+            self?.performingNetworkRequest.send(false)
+            onFinish(true)
+        }
+    }
 }
 
 extension EditAddressFormViewModel {