MageSail/Magesail/Block/Adminhtml/Tunnel.php

<?php

declare(strict_types=1);

namespace MageSail\Magesail\Block\Adminhtml;

use Magento\Backend\Block\Template;
use Magento\Backend\Block\Template\Context;
use Magento\Framework\App\Config\ScopeConfigInterface;
use Magento\Framework\Serialize\Serializer\Json;
use Magento\Store\Model\StoreManagerInterface;
use MageSail\Magesail\Model\TunnelRegistry;
use MageSail\Magesail\Model\TunnelStatus;
use MageSail\Magesail\Model\TunnelStoreProvisioner;

class Tunnel extends Template
{
    private const LOG_TAIL_BYTES = 8192;
    private const LOG_TAIL_LINES = 40;

    private const XML_MODE = 'magesail/settings/mode';

    public function __construct(
        Context $context,
        private readonly TunnelStatus $tunnelStatus,
        private readonly TunnelStoreProvisioner $tunnelStoreProvisioner,
        private readonly StoreManagerInterface $storeManager,
        private readonly ScopeConfigInterface $scopeConfig,
        private readonly TunnelRegistry $tunnelRegistry,
        private readonly Json $json,
        array $data = []
    ) {
        parent::__construct($context, $data);
    }

    /**
     * @return list<array{tunnel_id: string, label: string, store_code: string, local_port: int, running: bool, pid: int|null, key: string|null}>
     */
    public function getAllTunnelStatuses(): array
    {
        return $this->tunnelStatus->getAllTunnelStatuses();
    }

    /**
     * @return list<array<string, mixed>>
     */
    public function listTunnelsFromRegistry(): array
    {
        return $this->tunnelRegistry->listTunnels();
    }

    public function hasAnyNginxPendingReload(): bool
    {
        return $this->tunnelRegistry->anyTunnelHasNginxPendingReload();
    }

    /**
     * Preset ports shown first in Admin (443 is typical for Holesail + HTTPS upstream).
     *
     * @return list<int>
     */
    public function getLocalPortPresetValues(): array
    {
        return [443, 80, 8080];
    }

    /**
     * Initial Add-tunnel UI: preset key '443'|'80'|'8080'|'custom' and optional custom port when not a preset.
     *
     * @return array{preset: string, custom_port: int}
     */
    public function getInitialLocalPortUiState(): array
    {
        $presets = $this->getLocalPortPresetValues();
        $default = 443;
        foreach ($presets as $p) {
            if ($p === $default) {
                return ['preset' => (string) $p, 'custom_port' => $default];
            }
        }
        return ['preset' => 'custom', 'custom_port' => $default];
    }

    public function getDefaultHolesailSecure(): bool
    {
        return (bool) $this->scopeConfig->getValue(self::XML_MODE);
    }

    /**
     * @return list<array{value: string, label: string}>
     */
    public function getWebsiteOptions(): array
    {
        $options = [];
        foreach ($this->storeManager->getWebsites() as $website) {
            $options[] = [
                'value' => (string) $website->getId(),
                'label' => $website->getName() . ' (' . $website->getCode() . ')',
            ];
        }
        return $options;
    }

    /**
     * JSON map: websiteId string => list of {id, name}
     */
    public function getStoreGroupsByWebsiteJson(): string
    {
        $map = [];
        foreach ($this->storeManager->getWebsites() as $website) {
            $wid = (string) $website->getId();
            $map[$wid] = [];
            foreach ($website->getGroups() as $group) {
                $map[$wid][] = [
                    'id' => (string) $group->getId(),
                    'name' => $group->getName() . ' (' . $group->getCode() . ')',
                ];
            }
        }
        return $this->json->serialize($map);
    }

    /**
     * @deprecated
     */
    public function getTunnelStoreState(): ?array
    {
        return $this->tunnelStoreProvisioner->getPersistedState();
    }

    public function getTunnelStoreCodeConstant(): string
    {
        return TunnelStoreProvisioner::STORE_CODE;
    }

    /**
     * Strip scheme for display so Admin shows hostname-only; persisted URLs stay full in state.
     */
    public function getTunnelHostDisplay(?string $baseUrl): string
    {
        if ($baseUrl === null || $baseUrl === '') {
            return '';
        }
        $parts = parse_url($baseUrl);
        if ($parts === false || empty($parts['host'])) {
            return $baseUrl;
        }
        $out = $parts['host'];
        if (!empty($parts['port'])) {
            $out .= ':' . $parts['port'];
        }
        if (!empty($parts['path']) && $parts['path'] !== '/' && $parts['path'] !== '') {
            $out .= rtrim($parts['path'], '/');
        }
        return $out;
    }

    public function getStatusUrl(): string
    {
        return $this->getUrl('*/*/status');
    }

    public function getIndexUrl(): string
    {
        return $this->getUrl('*/*/index');
    }

    public function getLogtailUrl(): string
    {
        return $this->getUrl('*/*/logtail');
    }

    public function getFormKey(): string
    {
        return $this->formKey->getFormKey();
    }

    public function getLogFilePathForTunnel(string $tunnelId): string
    {
        return $this->tunnelStatus->getLogFilePath($tunnelId);
    }

    /**
     * @return string[]
     */
    public function getRecentLogLinesForTunnel(string $tunnelId): array
    {
        $path = $this->tunnelStatus->getLogFilePath($tunnelId);
        if (!\is_readable($path)) {
            return [];
        }
        $size = filesize($path);
        if ($size === false || $size === 0) {
            return [];
        }
        $fp = fopen($path, 'rb');
        if ($fp === false) {
            return [];
        }
        $start = max(0, $size - self::LOG_TAIL_BYTES);
        fseek($fp, $start);
        if ($start > 0) {
            fgets($fp);
        }
        $chunk = stream_get_contents($fp) ?: '';
        fclose($fp);
        $lines = preg_split('/\R/', $chunk) ?: [];
        $lines = array_values(array_filter($lines, static fn ($l) => $l !== ''));
        if (\count($lines) > self::LOG_TAIL_LINES) {
            $lines = \array_slice($lines, -self::LOG_TAIL_LINES);
        }
        return $lines;
    }

    /**
     * Config for RequireJS magesail-tunnel-ui (URLs, form key, i18n, store groups).
     *
     * @return array<string, mixed>
     */
    public function getTunnelUiInitConfig(): array
    {
        $groupsJson = $this->getStoreGroupsByWebsiteJson();
        $groups = json_decode($groupsJson, true);

        return [
            'statusUrl' => $this->getStatusUrl(),
            'indexUrl' => $this->getIndexUrl(),
            'logtailUrl' => $this->getLogtailUrl(),
            'formKey' => $this->getFormKey(),
            'groupsByWebsite' => \is_array($groups) ? $groups : [],
            'defaultTab' => \count($this->listTunnelsFromRegistry()) === 0 ? 'add' : 'list',
            'translations' => [
                'copied' => (string) __('Copied!'),
                'selectWebsiteFirst' => (string) __('— Select website first —'),
                'selectDash' => (string) __('— Select —'),
                'stopFailed' => (string) __('Stop failed'),
                'removeFailed' => (string) __('Remove failed'),
                'removeConfirm' => (string) __(
                    'Remove this tunnel, delete its store view, and update the NGINX map?'
                ),
                'selectWebsiteGroup' => (string) __('Select website and store group.'),
                'enterHostname' => (string) __('Enter the tunnel hostname.'),
                'invalidPort' => (string) __('Enter a valid local port (1–65535).'),
                'runningPidTpl' => (string) __('Running (PID %1)', 'X'),
                'clientLabel' => (string) __('Client:'),
            ],
        ];
    }

    public function getTunnelUiInitJson(): string
    {
        return $this->json->serialize($this->getTunnelUiInitConfig());
    }
}