platform : $platform; $class = config("platforms.rules.{$key}"); if (! $class) { throw new InvalidArgumentException( "[{$key}] is not a platform this product supports. Supported: ".implode(', ', $this->keys()) ); } return $this->container->make($class); } public function supports(?string $key): bool { return $key !== null && config("platforms.rules.{$key}") !== null; } /** @return list */ public function keys(): array { return array_keys((array) config('platforms.rules', [])); } /** @return list */ public function all(): array { return array_map(fn (string $key): PlatformRules => $this->for($key), $this->keys()); } }