<?php

namespace App\State;

use ApiPlatform\Metadata\Operation;
use ApiPlatform\State\ProcessorInterface;
use App\Entity\User;
use App\Service\PasswordSetupService;
use Symfony\Component\PasswordHasher\Hasher\UserPasswordHasherInterface;

class UserPasswordHasher implements ProcessorInterface
{
    public function __construct(
        private ProcessorInterface $processor,
        private UserPasswordHasherInterface $passwordHasher,
        private PasswordSetupService $passwordSetupService
    ) {
    }

    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = []): mixed
    {
        if (!$data instanceof User) {
            return $this->processor->process($data, $operation, $uriVariables, $context);
        }

        $isNewUser = !$data->getId();
        $hasPlainPassword = !empty($data->getPlainPassword());

        // Hash plain password if provided
        if ($hasPlainPassword) {
            $hashedPassword = $this->passwordHasher->hashPassword(
                $data,
                $data->getPlainPassword()
            );
            $data->setPassword($hashedPassword);
            $data->eraseCredentials();
        } elseif ($isNewUser) {
            // New user without password - set temporary random password
            $tempPassword = bin2hex(random_bytes(16));
            $hashedPassword = $this->passwordHasher->hashPassword($data, $tempPassword);
            $data->setPassword($hashedPassword);
        }

        // Process the user
        $result = $this->processor->process($data, $operation, $uriVariables, $context);

        // Send password setup email for new users without password
        if ($isNewUser && !$hasPlainPassword) {
            try {
                $this->passwordSetupService->sendPasswordSetupEmail($data);
            } catch (\Exception $e) {
                // Log error but don't fail user creation
                error_log('Failed to send password setup email: ' . $e->getMessage());
            }
        }

        return $result;
    }
}