<?php

namespace App\Filter;

use ApiPlatform\Doctrine\Orm\Filter\AbstractFilter;
use ApiPlatform\Doctrine\Orm\Util\QueryNameGeneratorInterface;
use ApiPlatform\Metadata\Operation;
use Doctrine\ORM\QueryBuilder;
use Symfony\Component\PropertyInfo\Type;

final class ProjectTaskProjectFilter extends AbstractFilter
{
    protected function filterProperty(
        string $property,
        $value,
        QueryBuilder $queryBuilder,
        QueryNameGeneratorInterface $queryNameGenerator,
        string $resourceClass,
        ?Operation $operation = null,
        array $context = []
    ): void {
        if ($property !== 'hasProject') {
            return;
        }

        $alias = $queryBuilder->getRootAliases()[0];

        // Convert string 'true'/'false' to boolean
        $hasProject = filter_var($value, FILTER_VALIDATE_BOOLEAN);

        if ($hasProject) {
            // Filter for tasks WITH project
            $queryBuilder->andWhere(sprintf('%s.project IS NOT NULL', $alias));
        } else {
            // Filter for tasks WITHOUT project
            $queryBuilder->andWhere(sprintf('%s.project IS NULL', $alias));
        }
    }

    public function getDescription(string $resourceClass): array
    {
        return [
            'hasProject' => [
                'property' => 'hasProject',
                'type' => Type::BUILTIN_TYPE_BOOL,
                'required' => false,
                'description' => 'Filter tasks by project existence (true = with project, false = without project)',
                'openapi' => [
                    'example' => 'true',
                    'allowReserved' => false,
                    'allowEmptyValue' => true,
                    'explode' => false,
                ],
            ],
        ];
    }
}