<?php
namespace vierbergenlars\AuthserverAutoExpireUsersBundle\Command;

use App\Entity\User;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Output\OutputInterface;
use vierbergenlars\AuthserverAutoExpireUsersBundle\Entity\ExpiredUser;
use Doctrine\ORM\Query\Expr;
use Doctrine\ORM\Query\Expr\Join;
use Symfony\Component\Console\Question\Question;
use Symfony\Component\Console\Question\ConfirmationQuestion;
use Symfony\Component\Console\Style\SymfonyStyle;
use App\AppBundle;

class ExpireUsersCommand extends Command
{

    protected function configure()
    {
        $this->setName('expire:users')
            ->addOption('username', null, InputOption::VALUE_REQUIRED, 'The username of the user to expire')
            ->addOption('last-login-before', null, InputOption::VALUE_REQUIRED, 'Users with a last login before this date will be expired')
            ->addOption('exclude-admins', null, InputOption::VALUE_NONE, 'Exclude admins from expiry')
            ->addOption('expire-date', null, InputOption::VALUE_REQUIRED, 'Set the expiry date of expired users to an other date.')
            ->addOption('dry-run', null, InputOption::VALUE_NONE, 'Do not actually execute the expiration.');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $em = $this->getApplication()
            ->getKernel()
            ->getContainer()
            ->get('doctrine.orm.entity_manager');
        /* @var $em \Doctrine\ORM\EntityManager */
        $userRepo = $em->getRepository(User::class);

        $queryBuilder = $userRepo->createQueryBuilder('u');
        $queryBuilder->leftJoin(ExpiredUser::class, 'eu', Join::WITH, 'eu.user = u.id');
        $queryBuilder->where('eu.expiredAt IS NULL');

        if ($input->getOption('username')) {
            $queryBuilder->andWhere('u.username = :username')->setParameter('username', $input->getOption('username'));
        }

        if ($input->getOption('exclude-admins')) {
            $queryBuilder->andWhere('u.role NOT IN (:admin_roles)')->setParameter('admin_roles', [
                'ROLE_ADMIN',
                'ROLE_SUPER_ADMIN'
            ]);
        }

        if ($input->getOption('last-login-before')) {
            $queryBuilder->andWhere('eu.lastLogin < :lastLogin OR eu.lastLogin IS NULL')->setParameter('lastLogin', new \DateTime($input->getOption('last-login-before')));
        }

        $expireDate = new \DateTime();
        if ($input->getOption('expire-date')) {
            $expireDate = new \DateTime($input->getOption('expire-date'));
        }

        $style = new SymfonyStyle($input, $output);
        $style->comment('Query: ' . $queryBuilder->getDQL());
        $countBuilder = clone $queryBuilder;
        $countBuilder->select('count(u.id)');
        $count = $countBuilder->getQuery()->getSingleScalarResult();

        if ($count == 0) {
            $style->warning('No users match these filters.');
            return 0;
        }

        if (!$input->getOption('dry-run') && !$style->confirm('Will expire ' . $count . ' users. Continue?', true)) {
            $style->error('Expiration cancelled.');
            return 1;
        }
        if ($input->getOption('dry-run')) {
            $style->note('Doing a dry-run.');
        }
        $progressBar = $style->createProgressBar($count);

        $usersIterator = $queryBuilder->getQuery()->iterate();

        foreach ($usersIterator as list ($user)) {
            /* @var $user \App\Entity\User */
            $progressBar->clear();
            $style->text('Expired user ' . $user->getUsername());
            $progressBar->display();
            $progressBar->advance();
            $progressBar->setMessage($user->getUsername());
            $expiryRecord = $em->find(ExpiredUser::class, $user);
            if (!$expiryRecord) {
                $expiryRecord = new ExpiredUser($user);
                $em->persist($expiryRecord);
            }
            $expiryRecord->setExpiredAt($expireDate);
            if (!$input->getOption('dry-run')) {
                $em->flush($expiryRecord);
            }
        }

        $progressBar->finish();

        $style->success('Expired ' . $count . ' users');
    }
}