DYN-5709: publish version fix (#15408)

Author: dnenov

src/DynamoCoreWpf/ViewModels/PackageManager/PackageManagerSearchViewModel.cs

@@ -998,6 +998,7 @@ public void Refresh()
             var pkgs = PackageManagerClientViewModel.ListAll();
 
             pkgs.Sort((e1, e2) => e1.Name.ToLower().CompareTo(e2.Name.ToLower()));
+            pkgs = pkgs.Where(x => x.Header.versions != null && x.Header.versions.Count > 0).ToList(); // We expect compliant data structure
             LastSync = pkgs;
 
             PopulateMyPackages();   // adding 

src/DynamoCoreWpf/ViewModels/PackageManager/PackageViewModel.cs

@@ -180,7 +180,7 @@ public PackageViewModel(DynamoViewModel dynamoViewModel, Package model)
             Model = model;
 
             PublishNewPackageVersionCommand = new DelegateCommand(() => ExecuteWithTou(PublishNewPackageVersion), IsOwner);
-            PublishNewPackageCommand = new DelegateCommand(() => ExecuteWithTou(PublishNewPackage), IsOwner);
+            PublishNewPackageCommand = new DelegateCommand(() => ExecuteWithTou(PublishNewPackage), CanSubmitNewPackage);
             UninstallCommand = new DelegateCommand(Uninstall, CanUninstall);
             UnmarkForUninstallationCommand = new DelegateCommand(UnmarkForUninstallation, CanUnmarkForUninstallation);
             LoadCommand = new DelegateCommand(Load, CanLoad);
@@ -410,6 +410,20 @@ private bool IsOwner()
             return packageManagerClient.DoesCurrentUserOwnPackage(Model, dynamoModel.AuthenticationManager.Username);
         }
 
+        /// <summary>
+        /// You should only be able to use this if you have an installed local package and submit for the first time
+        /// If a package with such name already exists, the process will fail during the API call, here we are not checking for that
+        /// </summary>
+        /// <returns></returns>
+        private bool CanSubmitNewPackage()
+        {
+            if (!CanPublish) return false;
+            // This is a round-about way to say, if we can publish a version,
+            // then the publish has already been published,
+            // so only allow 'Publish version'
+            return !packageManagerClient.DoesCurrentUserOwnPackage(Model, dynamoModel.AuthenticationManager.Username);
+        }
+
         private bool CanDeprecate()
         {
             var isDeprecated = IsPackageDeprecated(Model.Name);

src/DynamoCoreWpf/ViewModels/PackageManager/PublishPackageViewModel.cs

@@ -184,7 +184,7 @@ public PackageUploadHandle UploadHandle
             get { return _uploadHandle; }
             set
             {
-                if (_uploadHandle != value)
+                if (value != null && _uploadHandle != value)
                 {
                     _uploadHandle = value;
                     _uploadHandle.PropertyChanged += UploadHandleOnPropertyChanged;

src/DynamoPackages/PackageDirectoryBuilder.cs

@@ -328,18 +328,19 @@ internal void CopyFilesIntoRetainedPackageDirectory(IEnumerable<IEnumerable<stri
 
                     var destPath = Path.Combine(rootDir.FullName, relativePath.TrimStart('\\'));
 
-                    if (fileSystem.FileExists(destPath))
+                    if (!Directory.Exists(Path.GetDirectoryName(destPath)))
                     {
-                        fileSystem.DeleteFile(destPath);
+                        Directory.CreateDirectory(Path.GetDirectoryName(destPath)); 
                     }
 
-                    if (!Directory.Exists(Path.GetDirectoryName(destPath)))
+                    if (!fileSystem.FileExists(destPath))
                     {
-                        Directory.CreateDirectory(Path.GetDirectoryName(destPath));
+                        // Only copy new files into the destination folder.
+                        // Under `retain folder structure`, if the destination file == source file,
+                        // then that is simply the actual Package file we want to work with. 
+                        fileSystem.CopyFile(file, destPath);
                     }
 
-                    fileSystem.CopyFile(file, destPath);
-
                     if (file.ToLower().EndsWith(".dyf"))
                     {
                         dyfFiles.Add(destPath);