warehouse/app/Http/Controllers/Locations/ShowLocationController.php

<?php

namespace App\Http\Controllers\Locations;

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

class ShowLocationController
{
    public function handle(Router $router)
    {
        $parameters = $router->current()->parameters();

        $location = Location::find((int) $parameters['location']);

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

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

        foreach ($stock as $row) {
            $row->itemRoute = $router->route('view-item', ['item' => $row->item_id]);
        }

        return view('locations/view', [
            'location' => $location,
            'stock' => $stock,
        ]);
    }
}