Best way to format money or date with default string value

Hello,
I am wondering if exists an easy way to both use

default()

default()

and

money()

money()

format()

format()

for dates when the default value is a string.
If the value is null and so it is replaced with a string I get Filament\Support\format_money(): Argument #1 ($money) must be of type int|float, string given.
The solution that I have found it uses

formatStateUsing

formatStateUsing

, for example:

use function Filament\Support\format_money;

// ...

Components\TextEntry::make('initial_cost')
    ->money('eur')
    ->label(__('Initial Cost')),

Components\TextEntry::make('final_cost')
    ->default(__('N/A'))
    ->formatStateUsing(fn (int|float|string $state): string => $state == __('N/A')
        ? $state
        : format_money($state, 'eur'))
//      : $state->money('eur')) this also gives the same error
    ->label(__('Final Cost')),

use function Filament\Support\format_money;

// ...

Components\TextEntry::make('initial_cost')
    ->money('eur')
    ->label(__('Initial Cost')),

Components\TextEntry::make('final_cost')
    ->default(__('N/A'))
    ->formatStateUsing(fn (int|float|string $state): string => $state == __('N/A')
        ? $state
        : format_money($state, 'eur'))
//      : $state->money('eur')) this also gives the same error
    ->label(__('Final Cost')),

Is there a better way to achieve this with using

money()

money()

directly without

formatStateUsing

formatStateUsing

ILPAVOP•9/12/23, 4:44 PM

The same is true when using

format()

format()

, the best work around I got is this:

ILPAVOP•9/12/23, 8:27 PM

I guess using instead of

default()

default()

is also an option but the text displaying 'N/A' is obviously lighter