<?php

namespace App\Command;

use App\Entity\User;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Component\Console\Attribute\AsCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Question\Question;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Component\PasswordHasher\Hasher\UserPasswordHasherInterface;

#[AsCommand(
    name: 'app:create-super-admin',
    description: 'Creates the first super admin user'
)]
class CreateSuperAdminCommand extends Command
{
    private EntityManagerInterface $entityManager;
    private UserPasswordHasherInterface $passwordHasher;
    private string $environment;

    public function __construct(
        EntityManagerInterface $entityManager,
        UserPasswordHasherInterface $passwordHasher,
        string $environment
    ) {
        parent::__construct();
        $this->entityManager = $entityManager;
        $this->passwordHasher = $passwordHasher;
        $this->environment = $environment;
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $io = new SymfonyStyle($input, $output);
        $helper = $this->getHelper('question');

        $io->title('Create Super Admin User');

        // Ask for email
        $emailQuestion = new Question('Email address: ');
        $emailQuestion->setValidator(function ($answer) {
            if (empty($answer)) {
                throw new \RuntimeException('Email cannot be empty');
            }
            if (!filter_var($answer, FILTER_VALIDATE_EMAIL)) {
                throw new \RuntimeException('Invalid email format');
            }
            return $answer;
        });
        $email = $helper->ask($input, $output, $emailQuestion);

        // Check if user already exists
        $existingUser = $this->entityManager->getRepository(User::class)
            ->findOneBy(['email' => $email]);

        if ($existingUser) {
            $io->error("A user with email '{$email}' already exists.");
            return Command::FAILURE;
        }

        // Ask for name
        $nameQuestion = new Question('First name: ');
        $nameQuestion->setValidator(function ($answer) {
            if (empty(trim($answer))) {
                throw new \RuntimeException('First name cannot be empty');
            }
            return trim($answer);
        });
        $name = $helper->ask($input, $output, $nameQuestion);

        // Ask for surname
        $surnameQuestion = new Question('Last name: ');
        $surnameQuestion->setValidator(function ($answer) {
            if (empty(trim($answer))) {
                throw new \RuntimeException('Last name cannot be empty');
            }
            return trim($answer);
        });
        $surname = $helper->ask($input, $output, $surnameQuestion);

        // Ask for password
        $isDev = $this->environment === 'dev';
        $passwordQuestion = new Question('Password: ');
        $passwordQuestion->setHidden(true);
        $passwordQuestion->setHiddenFallback(false);
        $passwordQuestion->setValidator(function ($answer) use ($isDev) {
            if (empty($answer)) {
                throw new \RuntimeException('Password cannot be empty');
            }
            if (!$isDev && strlen($answer) < 8) {
                throw new \RuntimeException('Password must be at least 8 characters long');
            }
            return $answer;
        });
        $password = $helper->ask($input, $output, $passwordQuestion);
        
        if ($isDev && strlen($password) < 8) {
            $io->warning('Development mode: password length requirement bypassed');
        }

        // Confirm password
        $confirmPasswordQuestion = new Question('Confirm password: ');
        $confirmPasswordQuestion->setHidden(true);
        $confirmPasswordQuestion->setHiddenFallback(false);
        $confirmPassword = $helper->ask($input, $output, $confirmPasswordQuestion);

        if ($password !== $confirmPassword) {
            $io->error('Passwords do not match.');
            return Command::FAILURE;
        }

        // Create user
        $user = new User();
        $user->setEmail($email);
        $user->setName($name);
        $user->setSurname($surname);
        $user->setRoles(['ROLE_SUPER_ADMIN', 'ROLE_ADMIN']);
        $user->setIsActive(true);
        $user->setIsDeleted(false);

        // Hash password
        $hashedPassword = $this->passwordHasher->hashPassword($user, $password);
        $user->setPassword($hashedPassword);

        // Persist user
        $this->entityManager->persist($user);
        $this->entityManager->flush();

        $io->success([
            'Super Admin user created successfully!',
            "Email: {$email}",
            "Name: {$name} {$surname}",
            'Roles: ROLE_SUPER_ADMIN, ROLE_ADMIN'
        ]);

        return Command::SUCCESS;
    }
}