<?php
namespace AppBundle\Form;

class FormType extends AbstractType
{

    /** @var UserRepository */
    private $userRepository;

    /** @var ApiKeyRepository */
    private $apiKeyRepository;

    public function __construct(UserRepository $userRepository)
    {
        $this->userRepository = $userRepository;
    }

    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder
            ->add(
                self::APPLICANT,
                ChoiceType::class,
                [
                    'required' => false,
                    'label' => 'Richiesto da...',
                    'choices' => $this->getLegalUsers(),
                    'attr' => [
                        'data-helper' => 'chosen',
                    ],
                ]
            )
    }

    private function getLegalUsers(): array
    {
        $choices = [];

        $query = // qui fai la query con la distinct

        /** @var User[] $users */
        $users = $this->userRepository->findByQuery($query);

        foreach ($users as $user) {
            $choices[$user->getFirstName() . ' ' . $user->getLastName()] = $user->getEmail();
        }

        return $choices;
    }
}