<?php

namespace App\Command;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

use Doctrine\ORM\EntityManagerInterface;

use App\Entity\Battery;

use App\Service\WarrantyHandler;

class ComputeWarrantyExpiryDateCommand extends Command
{
    protected $em;
    protected $wh;

    public function __construct(EntityManagerInterface $em, WarrantyHandler $wh)
    {
        $this->em = $em;
        $this->wh = $wh;

        parent::__construct();
    }

    protected function configure()
    {
        $this->setName('warranty:computeexpirydate')
            ->setDescription('Compute expiry date for existing warranties.')
            ->setHelp('Compute expiry date for existing warranties.');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $warr_q = $this->em->createQuery('select w from App\Entity\Warranty w where w.date_expire is null');
        $warranties = $warr_q->iterate();

        foreach($warranties as $row)
        {
            $warr = $row[0];

            error_log('Processing warranty for ' . $warr->getID());

            $date_purchase = $warr->getDatePurchase();

            $batteries = $this->wh->getBatteriesForWarranty($warr);
            if (!empty($batteries))
            {
                $warranty_class = $warr->getWarrantyClass();

                $warr_period = $this->wh->getWarrantyPeriod($batteries, $warranty_class);

                if ($warr_period != null)
                {
                    $expiry_date = $this->wh->computeDateExpire($date_purchase, $warr_period);
                }
                else
                {
                    $expiry_date = $date_purchase;
                }

                // save expiry date
                $warr->setDateExpire($expiry_date);

                $this->em->persist($warr);
                $this->em->flush();
            }

            $this->em->clear();
        }

        return 0;
    }
}