core/src/Localization/Services/TranslationReader.php

<?php

namespace Modules\Core\Localization\Services;

use Illuminate\Support\Facades\App;
use Spatie\TranslationLoader\LanguageLine;

class TranslationReader
{
    private const DEFAULT_GROUP = 'storefront';

    /**
     * All labels in a group for the given (or current) locale, keyed by their
     * dot-notation key — e.g. ['nav.cart' => 'Cart', 'nav.home' => 'Home'].
     * Backed by LanguageLine's own forever-cache, so this is a cache hit after
     * the first call for a given group+locale.
     */
    public function group(string $group = self::DEFAULT_GROUP, ?string $locale = null): array
    {
        return LanguageLine::getTranslationsForGroup($locale ?? App::getLocale(), $group);
    }
}