<?php

namespace App\Form;

use App\Entity\ActivityPTA;
use App\Entity\Ministry;
use App\Entity\Costing;
use App\Repository\MinistryRepository;
use App\Repository\CostingRepository;
use Symfony\Bridge\Doctrine\Form\Type\EntityType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormEvents;
use Symfony\Component\Form\FormEvent;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\Extension\Core\Type\MoneyType;
use Symfony\Component\Form\Extension\Core\Type\HiddenType;
use Symfony\Component\OptionsResolver\OptionsResolver;

class ActivityPTAType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('code', TextType::class, [
                'label' => 'basics.code',
                'required' => false,
            ])
            ->add('name', TextType::class, [
                'label' => 'basics.name'
            ])
             ->add('expectedCost', MoneyType::class, [
                'label' => 'basics.expectedCost',
                'currency' => 'XOF',
                'grouping' => true,
                'scale' => 0,
            ])
            ->add('ministry', EntityType::class, [
                'label' => 'basics.ministry',
                'class' => Ministry::class,
                'choice_label' => 'name',
                'placeholder' => 'basics.ministry.placeholder',
                'query_builder' => function(MinistryRepository $repository) use($options) {
                    return $repository->findMinistryByYear(
                        '%'.$options['sessionYear'].'%', 
                        $options['sessionMinistry']
                    );
                },
            ])
        ;

        $builder->get('ministry')->addEventListener(
            FormEvents::POST_SUBMIT,
            function (FormEvent $event) use($options) {
                $form = $event->getForm();
                $this->addCostingField($form->getParent(), $form->getData(), $options);
            }
        );

        $builder->addEventListener(
            FormEvents::POST_SET_DATA,
            function (FormEvent $event) use($options) {
                $form = $event->getForm();
                $data = $event->getData();

                $costing = $data->getCosting();
                if ($costing) {
                    $ministry = $data->getMinistry();
                    $this->addCostingField($form, $ministry, $options);
                    $form->get('ministry')->setData($ministry);
                } else {
                    $this->addCostingField($form, null, $options);
                }
            }
        );
    }

    private function addCostingField(FormInterface $form, ?Ministry $ministry, array $options)
    {
        $builder = $form->getConfig()->getFormFactory()->createNamedBuilder(
            'costing',
            EntityType::class,
            null,
            [
                'label' => 'basics.costing',
                'class' => Costing::class,
                'choice_label' => 'name',
                'placeholder' => 'basics.costing.placeholder',
                'auto_initialize' => false,
                'query_builder' => function (CostingRepository $repository) use($options, $ministry) {
                    return $repository->findCostingByMinistry($ministry);
                },
            ]
        );

        $form->add($builder->getForm());
    }

    public function configureOptions(OptionsResolver $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => ActivityPTA::class,
            'sessionYear' => null,
            'sessionMinistry' => null,
        ));
    }
}