Correctly indenting new line created with SmartEnterProcessor

I am writing a SmartEnterProcessor for a custom language plugin. My simple rule is to e.g. add a brackets on class declaration and move caret to position where user can write in insides of this class.

My code, when simplified, is like:

public class MySmartEnterProcessor extends SmartEnterProcessor {
    @Override
    public boolean process(@NotNull Project project, @NotNull Editor editor, @NotNull PsiFile psiFile) {
        ...
        int offsetToJump = ...; // Calculates e.g. `class Foo<caret>` offset
        editor.getDocument().insertString(offsetToJump, " {\n\n}\n"); // Inserts brackets
        editor.getCaretModel().moveToOffset(offsetToJump + 3); // Jump inside of newly created block
        reformat(psiElementForDeclaration); // Do we need this?
    }}

As the result, I am getting not

class Foo {
    |<caret at normal indentation>
}

but:

class Foo {
|<caret at normal indentation>
}

which is not awesome. With current formatter, after `Move Caret to Line End` action(`End` in default keymap or `Ctrl+E` in emacs keymap) idea inserts needed amount of indentation respecting current indentation level. But in this case, our formatter does not make an indentation, because the line where caret moved to is empty.

So the question is:

1)Is it a formatter work?

2)If not, how can I make idea insert a needed amount of indentation before caret in this case?

I have looked at JavaSmartEnter implementation, but it is not too obvious on where it happens.