<?php

declare(strict_types=1);

namespace Domovoy\Tests\Services;

use Domovoy\Models\Credential;
use Domovoy\Models\Device;
use Domovoy\Services\HostScan\CommandWhitelist;
use Domovoy\Services\HostScan\LinuxHostScanner;
use PHPUnit\Framework\TestCase;

final class LinuxHostScannerTest extends TestCase
{
    public function testCollectsReadOnlyCommandsAndWritesRawJson(): void
    {
        $storagePath = sys_get_temp_dir() . '/domovoy-host-scan-test-' . uniqid();
        mkdir($storagePath, 0777, true);
        $runner = new FakeCommandRunner([
            'hostnamectl --static' => ['exit_code' => 0, 'stdout' => "server-1\n", 'stderr' => ''],
            'cat /etc/os-release' => ['exit_code' => 0, 'stdout' => "PRETTY_NAME=\"Debian GNU/Linux 12\"\n", 'stderr' => ''],
            'uname -r' => ['exit_code' => 0, 'stdout' => "6.1.0\n", 'stderr' => ''],
            'df -h --output=source,size,used,avail,pcent,target' => ['exit_code' => 0, 'stdout' => "Filesystem Size Used Avail Use% Mounted on\n/dev/sda1 20G 10G 10G 50% /\n", 'stderr' => ''],
            'systemctl --failed --no-pager --plain' => ['exit_code' => 0, 'stdout' => "0 loaded units listed.\n", 'stderr' => ''],
            'crontab -l' => ['exit_code' => 1, 'stdout' => '', 'stderr' => 'no crontab for root'],
        ]);
        $scanner = new LinuxHostScanner($runner, new CommandWhitelist(), $storagePath);

        $device = new Device();
        $device->id = 5;
        $device->primaryIp = '192.168.1.10';
        $credential = new Credential();
        $credential->id = 9;

        $result = $scanner->scan($device, $credential);

        self::assertSame('server-1', $result['summary']['hostname']);
        self::assertSame('Debian GNU/Linux 12', $result['summary']['os']);
        self::assertSame('6.1.0', $result['summary']['kernel']);
        self::assertFileExists($result['raw_path']);
        self::assertStringContainsString('hostnamectl', file_get_contents($result['raw_path']));
    }
}

final class FakeCommandRunner
{
    /** @param array<string, array{exit_code: int, stdout: string, stderr: string}> $responses */
    public function __construct(private array $responses)
    {
    }

    /** @return array{exit_code: int, stdout: string, stderr: string} */
    public function run(Credential $credential, string $host, array $command): array
    {
        $key = implode(' ', $command);
        return $this->responses[$key] ?? ['exit_code' => 127, 'stdout' => '', 'stderr' => 'missing fake response'];
    }
}