class Sdk

final class Sdk implements ResourceDetectorInterface {
    private const PACKAGES = [
        'open-telemetry/sdk',
        'open-telemetry/opentelemetry',
    ];
    public function getResource() : ResourceInfo {
        $attributes = [
            ResourceAttributes::TELEMETRY_SDK_NAME => 'opentelemetry',
            ResourceAttributes::TELEMETRY_SDK_LANGUAGE => 'php',
        ];
        if (class_exists(InstalledVersions::class)) {
            foreach (self::PACKAGES as $package) {
                if (!InstalledVersions::isInstalled($package)) {
                    continue;
                }
                if (($version = InstalledVersions::getPrettyVersion($package)) === null) {
                    continue;
                }
                $attributes[ResourceAttributes::TELEMETRY_SDK_VERSION] = $version;
                break;
            }
        }
        if (extension_loaded('opentelemetry')) {
            $attributes[ResourceAttributes::TELEMETRY_DISTRO_NAME] = 'opentelemetry-php-instrumentation';
            $attributes[ResourceAttributes::TELEMETRY_DISTRO_VERSION] = phpversion('opentelemetry');
        }
        return ResourceInfo::create(Attributes::create($attributes), ResourceAttributes::SCHEMA_URL);
    }

}