Marcosh\PhpValidationDSL\Combinator\Focus

Complexity

Total Complexity

3

Size/Duplication

Total Lines	49
Duplicated Lines	0 %

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	on()	0	3	1
A	validate()	0	9	1

<?php

declare(strict_types=1);

namespace Marcosh\PhpValidationDSL\Combinator;

use Marcosh\PhpValidationDSL\Result\ValidationResult;
use Marcosh\PhpValidationDSL\Validation;

final class Focus implements Validation
{
    /**
     * @var callable
     */
    private $focus;

    /**
     * @var Validation
     */
    private $validation;

    /**
     * Focus constructor.
     * @param callable $focus :: $data -> mixed
     * @param Validation $validation
     */
    private function __construct(callable $focus, Validation $validation)
    {
        $this->focus = $focus;
        $this->validation = $validation;
    }

    /**
     * @param callable $focus :: $data -> mixed
     * @param Validation $validation
     * @return self
     */
    public static function on(callable $focus, Validation $validation): self
    {
        return new self($focus, $validation);
    }

    /**
     * @template T
     * @psalm-param T $data
     * @param mixed $data
     * @param array $context
     * @return ValidationResult
     */
    public function validate($data, array $context = []): ValidationResult
    {
        return $this->validation->validate(($this->focus)($data), $context)
            ->map(
                /**
                 * @return T
                 */
                function () use ($data) {
                    return $data;
                }
            );
    }
}