<?php
declare(strict_types=1);

namespace MageSail\Magesail\Cron;

use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\App\Filesystem\DirectoryList;
use Psr\Log\LoggerInterface;
use MageSail\Magesail\Model\MagesailLog;
use MageSail\Magesail\Model\TunnelManager;
use MageSail\Magesail\Model\TunnelStatus;

class DailyMonitor
{
    private const XML_AUTO_RESTART = 'magesail/settings/auto_restart';

    public function __construct(
        private readonly LoggerInterface $logger,
        private readonly DirectoryList $directoryList,
        private readonly TunnelStatus $tunnelStatus,
        private readonly TunnelManager $tunnelManager,
        private readonly ScopeConfigInterface $scopeConfig,
        private readonly MagesailLog $magesailLog
    ) {
    }

    public function execute(): void
    {
        $pidFile = $this->directoryList->getPath(DirectoryList::VAR_DIR) . '/magesail.pid';
        $hadPidFile = \is_file($pidFile);
        $wasRunning = false;
        if ($hadPidFile) {
            $pid = (int) trim((string) file_get_contents($pidFile));
            $wasRunning = $pid > 0 && $this->tunnelStatus->isProcessAlive($pid);
        }

        if (!$wasRunning && $hadPidFile) {
            $this->tunnelStatus->cleanupStaleState();
            $this->magesailLog->add('Cron: tunnel process gone; cleaned PID/key files');
            $this->logger->warning('Magesail tunnel crashed; cleaned up PID files.');

            $autoRestart = (bool) $this->scopeConfig->getValue(self::XML_AUTO_RESTART);
            if ($autoRestart) {
                $secure = (bool) $this->scopeConfig->getValue('magesail/settings/mode');
                $port = filter_var($this->scopeConfig->getValue('magesail/settings/port') ?: 80, FILTER_VALIDATE_INT);
                if ($port && \in_array($port, [80, 443], true)) {
                    $result = $this->tunnelManager->start($port, $secure);
                    if ($result['ok']) {
                        $this->magesailLog->add(sprintf('Cron auto-restart OK PID %s', $result['pid']));
                        $this->logger->info('Magesail tunnel auto-restarted by cron.');
                    } else {
                        $this->magesailLog->add('Cron auto-restart failed: ' . ($result['error'] ?? 'unknown'));
                        $this->logger->warning('Magesail auto-restart failed: ' . ($result['error'] ?? ''));
                    }
                } else {
                    $this->magesailLog->add('Cron auto-restart skipped: invalid port');
                }
            }
        }

        $this->logger->info('Magesail cron monitor executed.');
    }
}