<?php

namespace Modules\Core\Localization\Models;

use Modules\Core\Localization\Services\LanguageCache;
use Spatie\TranslationLoader\LanguageLine as BaseLanguageLine;

/**
 * Overrides the base package's locale fallback (config('app.fallback_locale'), a
 * static .env value) with the store's actual default language — Lunar's
 * `languages.default` flag, the same source LocaleMiddleware/LanguageCache already
 * treat as the single source of truth for "this store's default language".
 *
 * Without this, changing the default language via the Filament Languages resource
 * has no effect on which locale an untranslated storefront label falls back to —
 * two disconnected "default locale" concepts silently drifting apart. Swapped in
 * via config('translation-loader.model') (see LocalizationServiceProvider), the
 * package's own documented extension point for this.
 */
class LanguageLine extends BaseLanguageLine
{
    public function getTranslation(string $locale): ?string
    {
        if (isset($this->text[$locale])) {
            return $this->text[$locale];
        }

        $fallback = app(LanguageCache::class)->defaultLocale();

        return $fallback !== null ? ($this->text[$fallback] ?? null) : null;
    }
}