warehouse/app/Http/Controllers/Items/ShowWithdrawStockFormController.php

<?php

namespace App\Http\Controllers\Items;

use App\Models\Item;
use App\Models\Stock;
use Framework\Routing\Router;

class ShowWithdrawStockFormController
{
    public function handle(Router $router)
    {
        if (!session()->has('user_id')) {
            return redirect($router->route('show-register-form'));
        }

        $parameters = $router->current()->parameters();

        $item = Item::find((int) $parameters['item']);

        if (!$item) {
            return redirect($router->route('show-items'));
        }

        $stock = Stock::where('item_id', $item->id)->all();
        $stock = array_filter($stock, fn($row) => $row->quantity > 0);

        return view('items/withdraw', [
            'item' => $item,
            'stock' => $stock,
            'withdrawAction' => $router->route('withdraw-stock', ['item' => $item->id]),
            'csrf' => csrf(),
        ]);
    }
}