<?php

namespace EasyCorp\Bundle\EasyAdminBundle\Form\Filter\Type;

use EasyCorp\Bundle\EasyAdminBundle\Form\Type\ComparisonType;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\CallbackTransformer;
use Symfony\Component\Form\Exception\TransformationFailedException;
use Symfony\Component\Form\Extension\Core\Type\NumberType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;

/**
 * @author Yonel Ceruto <yonelceruto@gmail.com>
 */
class NumericFilterType extends AbstractType
{
    private $valueType;
    private $valueTypeOptions;

    public function __construct(string $valueType = null, array $valueTypeOptions = [])
    {
        $this->valueType = $valueType ?: NumberType::class;
        $this->valueTypeOptions = $valueTypeOptions;
    }

    public function buildForm(FormBuilderInterface $builder, array $options): void
    {
        $builder->add('value2', $options['value_type'], $options['value_type_options'] + [
            'label' => false,
        ]);

        $builder->addModelTransformer(new CallbackTransformer(
            static function ($data) {
                return $data;
            },
            static function ($data) {
                if (ComparisonType::BETWEEN === $data['comparison']) {
                    if (null === $data['value'] || '' === $data['value'] || null === $data['value2'] || '' === $data['value2']) {
                        throw new TransformationFailedException('Two values must be provided when "BETWEEN" comparison is selected.');
                    }

                    // make sure value 2 is greater than value 1
                    if ($data['value'] > $data['value2']) {
                        [$data['value'], $data['value2']] = [$data['value2'], $data['value']];
                    }
                }

                return $data;
            }
        ));
    }

    public function configureOptions(OptionsResolver $resolver): void
    {
        $resolver->setDefaults([
            'value_type' => $this->valueType,
            'value_type_options' => $this->valueTypeOptions,
        ]);
    }

    public function getBlockPrefix(): string
    {
        return 'ea_numeric_filter';
    }

    public function getParent(): string
    {
        return ComparisonFilterType::class;
    }
}
