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

<?php

namespace App\Http\Controllers\Items;

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

class ShowItemController
{
    public function handle(Router $router)
    {
        $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);

        foreach ($stock as $row) {
            $row->locationRoute = $router->route('view-location', ['location' => $row->location_id]);
        }

        $movements = StockMovement::where('item_id', $item->id)->all();

        usort($movements, fn($a, $b) => $b->id <=> $a->id);

        $movements = array_slice($movements, 0, 20);

        return view('items/view', [
            'item' => $item,
            'totalQuantity' => array_sum(array_map(fn($row) => $row->quantity, $stock)),
            'stock' => $stock,
            'movements' => $movements,
            'receiveAction' => $router->route('show-receive-stock-form', ['item' => $item->id]),
            'withdrawAction' => $router->route('show-withdraw-stock-form', ['item' => $item->id]),
            'adjustAction' => $router->route('show-adjust-stock-form', ['item' => $item->id]),
            'canManage' => session()->has('user_id'),
        ]);
    }
}