<?php

namespace Deblan\Command;

use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Command\Command as BaseCommand;
use Symfony\Component\Console\Helper\Table;
use Symfony\Component\Process\Process;
use Deblan\Whois\Parser;

/**
 * class CheckCommand.
 *
 * @author Simon Vieille <simon@deblan.fr>
 */
class CheckCommand extends BaseCommand
{
    /**
     * @var array
     */
    protected $successes = [];

    /**
     * @var array
     */
    protected $fails = [];

    /**
     * @var InputInterface
     */
    protected $input;

    /**
     * @var OutputInterface
     */
    protected $output;

    /**
     * {@inheritdoc}
     */
    protected function configure()
    {
        $this
            ->setName('check')
            ->addArgument('domains', InputArgument::REQUIRED, 'List of domains separated by commas');
    }

    /**
     * {@inheritdoc}
     */
    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $this->input = $input;
        $this->output = $output;

        $this->checkDomains();

        $table = new Table($output);
        $table->setHeaders(['Domain', 'Date']);

        foreach ($this->sort($this->successes) as $result) {
            $table->addRow([
                $result['domain'],
                $this->createDateRender($result['expiryDate']),
            ]);
        }

        foreach ($this->sort($this->fails) as $result) {
            $table->addRow([
                $result['domain'],
                $result['expiryDate'],
            ]);
        }

        $table->render();
    }

    /**
     * Extracts domains.
     *
     * @return array
     */
    protected function getDomains():array
    {
        $domains = explode(',', $this->input->getArgument('domains'));
        $domains = array_map('trim', $domains);

        return $domains;
    }

    /**
     * Checks domains.
     */
    protected function checkDomains():void
    {
        foreach ($this->getDomains() as $domain) {
            $data = $this->checkDomain($domain);

            if ($data['expiryDate'] === null) {
                $this->fails[] = $data;
            } else {
                $this->successes[] = $data;
            }
        }
    }

    /**
     * Checks domain.
     *
     * @return array
     */
    protected function checkDomain($domain):array
    {
        $process = new Process(['whois', $domain]);
        $process->run();

        $whois = $process->getOutput();
        $parser = new Parser($whois);
        $expiryDate = $parser->getExpiryDate();

        return [
            'domain' => $domain,
            'expiryDate' => $expiryDate,
            'comparaison' => $expiryDate ? $expiryDate->getTimestamp() : 'FAIL',
        ];
    }

    /**
     * Sorts by expiry date and domain.
     *
     * @param array $data
     *
     * @return array
     */
    protected function sort(array $data):array
    {
        usort($data, function ($a, $b) {
            if ($a['comparaison'] > $b['comparaison']) {
                return 1;
            }

            if ($a['comparaison'] === $b['comparaison']) {
                if ($a['domain'] > $b['domain']) {
                    return 1;
                }

                return -1;
            }

            return 0;
        });

        return $data;
    }

    /**
     * Creates date render for the table.
     *
     * @param \DateTime $date
     *
     * @return string
     */
    protected function createDateRender(\DateTime $date):string
    {
        $timestamp = $date->getTimestamp();

        if ($timestamp - time() < 3600 * 24 * 14) {
            $color = 'red';
        } elseif ($timestamp - time() < 3600 * 24 * 30) {
            $color = 'yellow';
        } else {
            $color = 'green';
        }

        return sprintf('<fg=%s>%s</>', $color, $date->format('Y-m-d H:i:s'));
    }
}