public class CommonModule extends AbstractModule {

    private final Config config;

    public CommonModule(Config config) {
        this.config = config;
    }

    @Override
    protected void configure() {
        this.bind(Morphia.class).toProvider(MorphiaProvider.class).asEagerSingleton();
    }

    @Provides
    public MongoClient provideMongoClient() {
        ServerAddress serverAddress = new ServerAddress(this.config.databaseHost(), this.config.databasePort());

        MongoCredential credential = MongoCredential.createCredential(this.config.databaseUser(), this.config.databaseName(), this.config.databasePassword().toCharArray());

        return new MongoClient(serverAddress, Collections.singletonList(credential));
    }

    @Provides
    @Named(Constants.DATASTORE)
    public Datastore provideDatastore(MongoClient mongoClient, Morphia morphia) {
        Datastore datastore = morphia.createDatastore(mongoClient, this.config.databaseName());
        datastore.ensureIndexes();

        return datastore;
    }

    @Provides
    public Config provideConfig() {
        return this.config;
    }
}