private function ceResourceAndSubject()

in src/LegacyEventMapper.php [241:269]

• 27 lines of code
• 8 McCabe index (conditional complexity)

    private function ceResourceAndSubject(string $ceService, string $resource, ?string $domain): array
    {
        if (!array_key_exists($ceService, self::$ceResourceRegexMap)) {
            return [$resource, null];
        }

        $ret = preg_match(self::$ceResourceRegexMap[$ceService], $resource, $matches);
        if (!$ret) {
            throw new RuntimeException(
                $ret === 0 ? 'Resource regex did not match' : 'Failed while matching resource regex'
            );
        }
        if (self::FIREBASE_DB_CE_SERVICE === $ceService) {
            if (null === $domain) {
                return [null, null];
            }
            $location = 'us-central1';
            if ($domain !== 'firebaseio.com') {
                preg_match('#^([\w-]+)\.#', $domain, $locationMatches);
                if (!$locationMatches) {
                    return [null, null];
                }
                $location = $locationMatches[1];
            }
            return ["projects/_/locations/$location/$matches[1]", $matches[2]];
        }

        return [$matches[1], $matches[2]];
    }