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package org.apache.james.mailbox.cassandra.mail.utils;

import org.apache.james.backends.cassandra.CassandraCluster;
import org.apache.james.backends.cassandra.init.CassandraTypesProvider;
import org.apache.james.backends.cassandra.init.configuration.CassandraConfiguration;
import org.apache.james.blob.api.BlobId;
import org.apache.james.blob.api.BlobStore;
import org.apache.james.blob.api.HashBlobId;
import org.apache.james.blob.cassandra.CassandraBlobStore;
import org.apache.james.mailbox.cassandra.ids.CassandraMessageId;
import org.apache.james.mailbox.model.MessageId;

import com.datastax.driver.core.Session;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.util.Modules;

public class GuiceUtils {
    public static Injector testInjector(CassandraCluster cluster) {
        Session session = cluster.getConf();
        CassandraTypesProvider typesProvider = cluster.getTypesProvider();
        CassandraMessageId.Factory messageIdFactory = new CassandraMessageId.Factory();
        CassandraConfiguration configuration = CassandraConfiguration.DEFAULT_CONFIGURATION;

        return testInjector(session, typesProvider, messageIdFactory, configuration);
    }

    public static Injector testInjector(Session session, CassandraTypesProvider typesProvider, CassandraMessageId.Factory messageIdFactory, CassandraConfiguration configuration) {
        return Guice.createInjector(
            Modules.combine(
                binder -> binder.bind(MessageId.Factory.class).toInstance(messageIdFactory),
                binder -> binder.bind(BlobId.Factory.class).toInstance(new HashBlobId.Factory()),
                binder -> binder.bind(BlobStore.class).to(CassandraBlobStore.class),
                binder -> binder.bind(Session.class).toInstance(session),
                binder -> binder.bind(CassandraTypesProvider.class).toInstance(typesProvider),
                binder -> binder.bind(CassandraConfiguration.class).toInstance(configuration)));
    }
}
