wol-soft/php-json-schema-model-generator

<?php

declare(strict_types = 1);

namespace PHPModelGenerator\PropertyProcessor\Decorator\TypeHint;

use PHPModelGenerator\Model\Property\PropertyInterface;

/**
 * Class ArrayTypeHintDecorator
 *
 * @package PHPModelGenerator\PropertyProcessor\Decorator\Property
 */
class ArrayTypeHintDecorator implements TypeHintDecoratorInterface
{
    /** @var PropertyInterface */
    protected $nestedProperty;

    private $recursiveArrayCheck = 0;

    /**
     * ArrayTypeHintDecorator constructor.
     *
     * @param PropertyInterface $nestedProperty
     */
    public function __construct(PropertyInterface $nestedProperty)
    {
        $this->nestedProperty = $nestedProperty;
    }

    /**
     * @inheritdoc
     */
    public function decorate(string $input, bool $outputType = false): string
    {
        // TODO: provide better type hints. Currently provides e.g. "string|array[]" instead of "string|string[]" for a recursive string array
        if (++$this->recursiveArrayCheck > 1) {
            return $this->nestedProperty->getTypeHint($outputType, [self::class]);
        }

        $result = implode(
            '|',
            array_map(
                static function (string $typeHint): string {
                    return "{$typeHint}[]";
                },
                explode('|', $this->nestedProperty->getTypeHint($outputType)),
            )
        );

        $this->recursiveArrayCheck--;

        return $result;
    }
}