backend-mm/app/Nova/Resources/CMS/Marketing/FlashSale.php

<?php

namespace App\Nova\Resources\CMS\Marketing;

use App\Models\CMS\Marketing\FlashSale as FlashSaleModel;
use App\Nova\Forms\NovaForm;
use App\Nova\Resource;
use App\Nova\Resources\Ecommerce\Product\Product\Product;
use Illuminate\Database\Eloquent\Model;
use Laravel\Nova\Fields\DateTime;
use Laravel\Nova\Fields\ID;
use Laravel\Nova\Fields\Text;
use Laravel\Nova\Http\Requests\NovaRequest;
use Laravel\Nova\Panel;
use Outl1ne\MultiselectField\Multiselect;
use Trin4ik\NovaSwitcher\NovaSwitcher;

class FlashSale extends Resource
{
    /**
     * The model the resource corresponds to.
     *
     * @var class-string<FlashSaleModel>
     */
    public static $model = FlashSaleModel::class;

    /**
     * The single value that should be used to represent the resource when being displayed.
     *
     * @var string
     */
    public static $title = 'id';

    /**
     * The columns that should be searched.
     *
     * @var array
     */
    public static $search = [
        'title',
    ];

    /**
     * The relationships that should be eager loaded on index queries.
     *
     * @var array
     */
    public static $with = ['products'];

    /**
     * Get the displayable label of the resource.
     */
    public static function label(): string
    {
        return __('Flash sales');
    }

    /**
     * Get the displayable singular label of the resource.
     */
    public static function singularLabel(): string
    {
        return __('Flash sale');
    }

    /**
     * Get the fields displayed by the resource.
     */
    public function fields(NovaRequest $request): array
    {
        return [
            new Panel(__('Basic information'), [
                ID::make()->sortable(),

                Text::make(__('Title'), 'title')
                    ->rules('required')
                    ->translatable(),

                DateTime::make(__('Starts at'), 'starts_at')
                    ->rules('required', 'date')
                    ->default(now()),

                DateTime::make(__('Ends at'), 'ends_at')
                    ->rules('required', 'date', 'after:starts_at')
                    ->default(now()->addDay()),

                Text::make(__('Products count'), fn () => $this->products->count())
                    ->exceptOnForms(),

                Text::make(__('Products'), fn () => $this->products->pluck('name')->implode(', '))
                    ->onlyOnDetail(),

                Multiselect::make(__('Products'), 'products')
                    ->asyncResource(Product::class)
                    ->placeholder(__('Search by id, name, sku, barcode...'))
                    ->rules('required')
                    ->resolveUsing(fn () => $this->products->pluck('id')->toArray())
                    ->fillUsing(NovaForm::fillEmpty())
                    ->onlyOnForms(),

                NovaSwitcher::make(__('Visible'), 'is_visible')
                    ->default(true)
                    ->sortable(),
            ]),
        ];
    }

    /**
     * Register a callback to be called after the resource is created.
     */
    public static function afterCreate(NovaRequest $request, Model $model): void
    {
        static::syncProducts($request, $model);
    }

    /**
     * Register a callback to be called after the resource is updated.
     */
    public static function afterUpdate(NovaRequest $request, Model $model): void
    {
        static::syncProducts($request, $model);
    }

    /**
     * Sync selected products.
     */
    protected static function syncProducts(NovaRequest $request, Model $model): void
    {
        $products = $request->input('products', []);

        if (is_string($products)) {
            $products = str_contains($products, ',') ? explode(',', $products) : [$products];
        }

        $products = collect($products)
            ->filter()
            ->map(fn ($product) => intval($product))
            ->values()
            ->toArray();

        $model->products()->sync($products);
    }

    /**
     * Get the cards available for the request.
     */
    public function cards(NovaRequest $request): array
    {
        return [];
    }

    /**
     * Get the filters available for the resource.
     */
    public function filters(NovaRequest $request): array
    {
        return [];
    }

    /**
     * Get the lenses available for the resource.
     */
    public function lenses(NovaRequest $request): array
    {
        return [];
    }

    /**
     * Get the actions available for the resource.
     */
    public function actions(NovaRequest $request): array
    {
        return [];
    }
}