Group rename

src/AppCommon/FileTime.App.Core/Services/UserCommandHandler/ItemManipulationUserCommandHandlerService.cs

@@ -180,12 +180,15 @@ public class ItemManipulationUserCommandHandlerService : UserCommandHandlerServi
 
     private async Task Rename(RenameCommand command)
     {
+        List<ItemToMove> itemsToMove = new();
         if ((_markedItems?.Collection?.Count ?? 0) > 0)
         {
             BehaviorSubject<string> templateRegexValue = new(string.Empty);
             BehaviorSubject<string> newNameSchemaValue = new(string.Empty);
 
-            var itemPreviews = _markedItems!.Collection!
+            var itemsToRename = new List<FullName>(_markedItems!.Collection!);
+
+            var itemPreviews = itemsToRename
                 .Select(item =>
                     {
                         var originalName = item.GetName();
@@ -238,7 +241,102 @@ public class ItemManipulationUserCommandHandlerService : UserCommandHandlerServi
                                         || string.IsNullOrWhiteSpace(newNameSchema)) return new List<ItemNamePart> {new(originalName)};
 
                                     var regex = new Regex(templateRegex);
-                                    var match = regex.Match(originalName);
+                                    var itemNameParts = GetItemNameParts(regex, originalName, newNameSchema);
+
+                                    return itemNameParts.ToList();
+                                }
+                                catch
+                                {
+                                    return new List<ItemNamePart> {new(originalName)};
+                                }
+                            }
+                        );
+
+                        var preview = new DoubleTextPreview
+                        {
+                            Text1 = decoratedOriginalName,
+                            Text2 = text2
+                        };
+                        return preview;
+                    }
+                );
+
+            DoubleTextListPreview doubleTextListPreview = new();
+            doubleTextListPreview.Items.AddRange(itemPreviews);
+
+            var templateRegex = new TextInputElement("Template regex", string.Empty,
+                s => templateRegexValue.OnNext(s!));
+            var newNameSchema = new TextInputElement("New name schema", string.Empty,
+                s => newNameSchemaValue.OnNext(s!));
+
+            var success = await _userCommunicationService.ReadInputs(
+                new[] {templateRegex, newNameSchema},
+                new[] {doubleTextListPreview}
+            );
+
+            if (success)
+            {
+                if (templateRegex.Value is null)
+                {
+                    //TODO messagebox
+                }
+                else if (newNameSchema.Value is null)
+                {
+                    //TODO messagebox
+                }
+                else
+                {
+                    var regex = new Regex(templateRegex.Value);
+                    var itemsToMoveWithPath = itemsToRename
+                        .Select(item =>
+                            (
+                                OriginalFullName: item,
+                                NewName:
+                                item.GetParent()!.GetChild(
+                                    string.Join(
+                                        "",
+                                        GetItemNameParts(regex, item.GetName(), newNameSchema.Value)
+                                            .Select(i => i.Text)
+                                    )
+                                )
+                            )
+                        )
+                        .Select(i => new ItemToMove(i.OriginalFullName, i.NewName));
+
+                    itemsToMove.AddRange(itemsToMoveWithPath);
+                }
+            }
+        }
+        else
+        {
+            if (_currentSelectedItem?.BaseItem?.FullName is null) return;
+
+            var item = await _timelessContentProvider.GetItemByFullNameAsync(_currentSelectedItem.BaseItem.FullName, PointInTime.Present);
+
+            if (item is null) return;
+
+            var renameInput = new TextInputElement("New name", item.Name);
+
+            if (await _userCommunicationService.ReadInputs(renameInput))
+            {
+                //TODO: should check these null forgivings...
+                var newPath = item.FullName!.GetParent()!.GetChild(renameInput.Value!);
+                itemsToMove.Add(new ItemToMove(item.FullName, newPath));
+            }
+        }
+
+        if (itemsToMove.Count > 0)
+        {
+            //TODO: name collision, probably on the input window at the new template name
+            //TODO: check if the name changed
+            var moveCommandFactory = _serviceProvider.GetRequiredService<MoveCommandFactory>();
+            var moveCommand = moveCommandFactory.GenerateCommand(itemsToMove);
+            await AddCommand(moveCommand);
+        }
+
+        static IEnumerable<ItemNamePart> GetItemNameParts(Regex templateRegex, string originalName, string newNameSchema)
+        {
+            var match = templateRegex.Match(originalName);
             if (!match.Success) return new List<ItemNamePart> {new(originalName)};
 
             var matchGroups = match.Groups;
@@ -266,56 +364,7 @@ public class ItemManipulationUserCommandHandlerService : UserCommandHandlerServi
                     : new ItemNamePart(namePart, false)
             );
 
-                                    return itemNameParts.ToList();
+            return itemNameParts;
-                                }
-                                catch
-                                {
-                                    return new List<ItemNamePart> {new(originalName)};
-                                }
-                            }
-                        );
-
-                        var preview = new DoubleTextPreview
-                        {
-                            Text1 = decoratedOriginalName,
-                            Text2 = text2
-                        };
-                        return preview;
-                    }
-                );
-
-            DoubleTextListPreview doubleTextListPreview = new();
-            doubleTextListPreview.Items.AddRange(itemPreviews);
-
-            var templateRegex = new TextInputElement("Template regex", string.Empty,
-                s => templateRegexValue.OnNext(s!));
-            var newNameSchema = new TextInputElement("New name schema", string.Empty,
-                s => newNameSchemaValue.OnNext(s!));
-            await _userCommunicationService.ReadInputs(
-                new[] {templateRegex, newNameSchema},
-                new[] {doubleTextListPreview}
-            );
-        }
-        else
-        {
-            List<ItemToMove> itemsToMove = new();
-            if (_currentSelectedItem?.BaseItem?.FullName is null) return;
-
-            var item = await _timelessContentProvider.GetItemByFullNameAsync(_currentSelectedItem.BaseItem.FullName, PointInTime.Present);
-
-            if (item is null) return;
-
-            var renameInput = new TextInputElement("New name", item.Name);
-
-            await _userCommunicationService.ReadInputs(renameInput);
-
-            //TODO: should check these...
-            var newPath = item.FullName!.GetParent()!.GetChild(renameInput.Value!);
-            itemsToMove.Add(new ItemToMove(item.FullName, newPath));
-
-            var moveCommandFactory = _serviceProvider.GetRequiredService<MoveCommandFactory>();
-            var moveCommand = moveCommandFactory.GenerateCommand(itemsToMove);
-            await AddCommand(moveCommand);
         }
     }