<?php

declare(strict_types=1);

namespace App\State;

use ApiPlatform\Metadata\Operation;
use ApiPlatform\State\ProcessorInterface;
use App\Entity\User;
use Symfony\Component\DependencyInjection\Attribute\Autowire;
use Symfony\Component\PasswordHasher\Hasher\UserPasswordHasherInterface;

final class UserPasswordProcessor implements ProcessorInterface
{
    public function __construct(
        private readonly UserPasswordHasherInterface $hasher,
        #[Autowire(service: 'api_platform.doctrine.orm.state.persist_processor')]
        private readonly ProcessorInterface $persistProcessor
    ) {}

    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = []): mixed
    {
        if ($data instanceof User) {
            $plain    = $data->getPassword();
            $previous = $context['previous_data'] ?? null;
            if ($previous instanceof User && $plain === $previous->getPassword()) {
                // Password not changed in payload: keep existing hash.
                $data->setPassword($previous->getPassword());
            } elseif ('' !== $plain) {
                $data->setPassword($this->hasher->hashPassword(
                    $data,
                    $plain
                ));
            }
        }

        return $this->persistProcessor->process(
            $data,
            $operation,
            $uriVariables,
            $context
        );
    }
}