<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Http;
use Symfony\Component\Finder\Finder;

class UpdateGeoIpDatabaseCommand extends Command
{
    protected $signature = 'link:geoip-update';

    protected $description = 'Download the MaxMind GeoLite2 Country database for link click geolocation';

    public function handle(): int
    {
        $accountId = trim((string) config('link.maxmind_account_id', ''));
        $licenseKey = trim((string) config('link.maxmind_license_key', ''));

        if ($accountId === '' || $licenseKey === '') {
            $envPath = realpath(base_path('.env')) ?: base_path('.env');
            $configCached = is_file(base_path('bootstrap/cache/config.php'));

            $this->error('Set MAXMIND_ACCOUNT_ID and MAXMIND_LICENSE_KEY before updating GeoIP data.');
            $this->line('');
            $this->line('Production uses the shared env file (current/.env is usually a symlink):');
            $this->line('  '.$envPath);
            $this->line('');
            $this->line('Add both variables there, then refresh config:');
            $this->line('  php artisan config:clear');
            $this->line('  php artisan link:geoip-update');
            $this->line('  php artisan config:cache');

            if ($configCached) {
                $this->warn('Config is cached — Laravel will ignore new .env values until you run config:clear.');
            }

            return self::FAILURE;
        }

        $targetDir = dirname((string) config('link.geoip_database'));
        File::ensureDirectoryExists($targetDir);

        $this->info('Downloading GeoLite2-Country database from MaxMind…');

        $response = Http::withBasicAuth($accountId, $licenseKey)
            ->timeout(180)
            ->withOptions(['allow_redirects' => true])
            ->get('https://download.maxmind.com/geoip/databases/GeoLite2-Country/download', [
                'suffix' => 'tar.gz',
            ]);

        if ($response->failed()) {
            $this->error('MaxMind download failed: HTTP '.$response->status());

            return self::FAILURE;
        }

        $archivePath = $targetDir.'/GeoLite2-Country.tar.gz';
        $extractDir = $targetDir.'/extract-'.uniqid('', true);
        file_put_contents($archivePath, $response->body());

        try {
            File::ensureDirectoryExists($extractDir);

            $process = new \Symfony\Component\Process\Process([
                'tar', '-xzf', $archivePath, '-C', $extractDir,
            ]);
            $process->mustRun();

            $finder = Finder::create()
                ->files()
                ->name('GeoLite2-Country.mmdb')
                ->in($extractDir);

            $database = null;
            foreach ($finder as $file) {
                $database = $file->getPathname();
                break;
            }

            if ($database === null) {
                $this->error('GeoLite2-Country.mmdb was not found in the downloaded archive.');

                return self::FAILURE;
            }

            $target = (string) config('link.geoip_database');
            File::copy($database, $target);
            $this->info('GeoIP database updated at '.$target);

            return self::SUCCESS;
        } finally {
            @unlink($archivePath);
            File::deleteDirectory($extractDir);
        }
    }
}