<?php

interface ConnectionInterface {}

class Connection extends ConnectionInterface
{
    public function getSchemaState(): array
    {
        return [];
    }
}

class SqlServerConnection extends ConnectionInterface {}

interface ConnectionResolverInterface
{
    /**
     * @param  string|null  $name
     * @return ConnectionInterface
     */
    public function connection($name = null);
}

final class DemoFile
{
    public function __invoke(ConnectionResolverInterface $resolver): void
    {
        $connection = $resolver->connection();
        
        if (
            $connection instanceof SqlServerConnection
            || ! method_exists($connection, 'getSchemaState')
        ) {
            return;
        }

        $this->ensureCleanDatabase($connection);
    }

    private function ensureCleanDatabase(ConnectionInterface $connection): void
    {
    }
}