<?php

declare(strict_types=1);

namespace Pfatt\Commands;

use Pfatt\Service\Config;
use Pfatt\Service\IfConfig;
use Pfatt\Service\KldLoad;
use Pfatt\Service\NgCtl;
use Psr\Log\LoggerInterface;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Process\Process;

final class Startup extends Command
{
    protected static $defaultName = 'startup';
    protected static $defaultDescription = 'Start netgraph connetion';
    protected Config $config;
    protected LoggerInterface $logger;
    protected NgCtl $ngControl;
    private IfConfig $ifConfig;
    private KldLoad $kldLoad;

    public function __construct(
        Config $config,
        LoggerInterface $logger,
        NgCtl $ngControl,
        IfConfig $ifConfig,
        KldLoad $kldLoad
    ) {
        parent::__construct('startup');
        $this->config = $config;
        $this->logger = $logger;
        $this->ngControl = $ngControl;
        $this->ifConfig = $ifConfig;
        $this->kldLoad = $kldLoad;
    }

    /**
     * {@inheritDoc}
     */
    protected function execute(
        InputInterface $input,
        OutputInterface $output
    ): int {
        switch ($this->getVariant()) {
            case 'opnsense':
                $this->logger->info('loading netgraph kernel modules...');
                $this->kldLoad->execute('netgraph');
                $this->kldLoad->execute('ng_ether');
                $this->kldLoad->execute('ng_etf');
                $this->kldLoad->execute('ng_vlan');
                $this->kldLoad->execute('ng_eiface');
                $this->kldLoad->execute('ng_one2many');
                $this->logger->info('OK!');
                break;

            case 'pfsense':
            default:
                $attach = function (string $interface): Process {
                    return new Process([
                        '/usr/local/bin/php',
                        '-r',
                        '"pfSense_ngctl_attach(\'.\', \'' . $interface . '\');"'
                    ]);
                };

                $this->logger->info('attaching interfaces to ng_ether...');
                $attach($this->config->getOntInterface())->mustRun();
                $attach($this->config->getRgInterface())->mustRun();
                $this->logger->info('OK!');
                break;
        }
        $this->ngControl->createBridge(
            $this->config->getOntInterface(),
            $this->config->getRgInterface(),
            $this->config->getRgEthernetMac()
        );
        $this->ifConfig->start(
            $this->config->getOntInterface(),
            $this->config->getRgInterface()
        );
        $this->logger->info("ngeth0 should now be available to configure as your pfSense WAN");
        $this->logger->info("Done");
        return Command::SUCCESS;
    }

    /**
     * @return string
     */
    private function getVariant(): string
    {
        // @todo detect the variant to trigger different behaviors.
        return 'opnsense';
    }
}