core/src/Localization/Filament/Resources/LanguageLineResource.php

<?php

namespace Modules\Core\Localization\Filament\Resources;

use Filament\Forms;
use Filament\Forms\Form;
use Filament\Resources\Resource;
use Filament\Tables;
use Filament\Tables\Table;
use Lunar\Models\Language;
use Modules\Core\Localization\Filament\Resources\LanguageLineResource\Pages;
use Spatie\TranslationLoader\LanguageLine;

class LanguageLineResource extends Resource
{
    protected static ?string $model = LanguageLine::class;

    protected static ?string $navigationIcon = 'heroicon-o-language';

    protected static ?string $navigationGroup = 'Settings';

    protected static ?string $modelLabel = 'Translation';

    protected static ?string $pluralModelLabel = 'Translations';

    public static function form(Form $form): Form
    {
        return $form->schema([
            Forms\Components\TextInput::make('group')
                ->required()
                ->maxLength(255)
                ->default('storefront')
                ->helperText('Namespace for this label, e.g. "storefront" for e-shop UI text.'),

            Forms\Components\TextInput::make('key')
                ->required()
                ->maxLength(255)
                ->helperText('Dot-notation key, e.g. "nav.cart".'),

            Forms\Components\Fieldset::make('Translations')
                ->schema(static::localeInputs()),
        ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                Tables\Columns\TextColumn::make('group')
                    ->badge()
                    ->sortable(),
                Tables\Columns\TextColumn::make('key')
                    ->searchable()
                    ->sortable(),
                ...static::localeColumns(),
            ])
            ->filters([
                Tables\Filters\SelectFilter::make('group')
                    ->options(fn () => LanguageLine::query()->distinct()->pluck('group', 'group')),
            ])
            ->defaultSort('key');
    }

    public static function getRelations(): array
    {
        return [];
    }

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListLanguageLines::route('/'),
            'create' => Pages\CreateLanguageLine::route('/create'),
            'edit' => Pages\EditLanguageLine::route('/{record}/edit'),
        ];
    }

    /**
     * @return array<Forms\Components\Textarea>
     */
    private static function localeInputs(): array
    {
        return static::localeCodes()
            ->map(fn (string $code) => Forms\Components\Textarea::make("text.{$code}")
                ->label(strtoupper($code))
                ->rows(2))
            ->all();
    }

    /**
     * @return array<Tables\Columns\TextColumn>
     */
    private static function localeColumns(): array
    {
        return static::localeCodes()
            ->map(fn (string $code) => Tables\Columns\TextColumn::make("text.{$code}")
                ->label(strtoupper($code))
                ->limit(40)
                ->toggleable())
            ->all();
    }

    private static function localeCodes(): \Illuminate\Support\Collection
    {
        return Language::query()->pluck('code');
    }
}