Solo InertiaInertia.js 3 for PSR-7 and PSR-15

use Solo\Inertia\Inertia;

final readonly class TaskController
{
    public function __construct(private Inertia $inertia, private TaskRepository $tasks)
    {
    }

    public function index(ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
    {
        return $this->inertia->render($request, $response, 'Tasks/Index', [
            'tasks' => fn() => $this->tasks->all(),                 // called only when sent
            'stats' => Inertia::defer(fn() => $this->tasks->stats()), // loaded right after the page
        ]);
    }

    public function store(ServerRequestInterface $request, ResponseInterface $response): ResponseInterface
    {
        $title = trim((string) ($request->getParsedBody()['title'] ?? ''));
        if ($title === '') {
            return $this->inertia->back($request, $response, errors: ['title' => 'The title is required.']);
        }

        $this->tasks->create($title);

        return $this->inertia->redirect($request, $response, '/tasks', flash: ['success' => 'Task created.']);
    }
}