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

<?php

namespace Modules\Core\Localization\Filament\Resources;

use Filament\Schemas\Schema;
use Filament\Forms\Components\TextInput;
use Filament\Schemas\Components\Fieldset;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Filters\SelectFilter;
use Modules\Core\Localization\Filament\Resources\LanguageLineResource\Pages\ListLanguageLines;
use Modules\Core\Localization\Filament\Resources\LanguageLineResource\Pages\CreateLanguageLine;
use Modules\Core\Localization\Filament\Resources\LanguageLineResource\Pages\EditLanguageLine;
use Filament\Forms\Components\Textarea;
use Illuminate\Support\Collection;
use Filament\Forms;
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 | \BackedEnum | null $navigationIcon = 'heroicon-o-language';

    protected static string | \UnitEnum | null $navigationGroup = 'Settings';

    protected static ?string $modelLabel = 'Translation';

    protected static ?string $pluralModelLabel = 'Translations';

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

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

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

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                TextColumn::make('group')
                    ->badge()
                    ->sortable(),
                TextColumn::make('key')
                    ->searchable()
                    ->sortable(),
                ...static::localeColumns(),
            ])
            ->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' => ListLanguageLines::route('/'),
            'create' => CreateLanguageLine::route('/create'),
            'edit' => EditLanguageLine::route('/{record}/edit'),
        ];
    }

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

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

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