private function discoverServiceFramework()

in agent/php/ElasticApm/Impl/AutoInstrument/WordPressAutoInstrumentation.php [336:372]
31 lines of code
9 McCabe index (conditional complexity)

    private function discoverServiceFramework(): ?NameVersionData
    {
        if ($this->isServiceFrameworkSet) {
            return $this->serviceFramework;
        }

        $loggerProxyDebug = $this->logger->ifDebugLevelEnabledNoLine(__FUNCTION__);

        if (!$this->isReadyToWrapFilterCallbacks) {
            $loggerProxyDebug && $loggerProxyDebug->log(__LINE__, 'Did not discover because expected WordPress code (_wp_filter_build_unique_id function) was not loaded');
            $this->isServiceFrameworkSet = true;
            return $this->serviceFramework;
        }

        global $wp_version;
        /** @var ?string $reasonNotDiscovered */
        $reasonNotDiscovered = null;
        if (isset($wp_version)) {
            if (is_string($wp_version)) {
                $this->serviceFramework = new NameVersionData(self::SERVICE_FRAMEWORK_NAME, $wp_version);
            } else {
                $reasonNotDiscovered = '$wp_version global variable is set but it is not a string; $wp_version: '
                                       . LoggableToString::convert(['type' => DbgUtil::getType($wp_version), 'value' => $wp_version]);
            }
        } else {
            $reasonNotDiscovered = '$wp_version global variable is not set';
        }

        if ($reasonNotDiscovered === null) {
            $loggerProxyDebug && $loggerProxyDebug->log(__LINE__, 'Discovered', ['serviceFramework' => $this->serviceFramework]);
        } else {
            $loggerProxyDebug && $loggerProxyDebug->log(__LINE__, 'Did not discover because ' . $reasonNotDiscovered);
        }

        $this->isServiceFrameworkSet = true;
        return $this->serviceFramework;
    }