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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://neo4j.com]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.neo4j.driver.internal.reactive;

import static reactor.adapter.JdkFlowAdapter.flowPublisherToFlux;
import static reactor.adapter.JdkFlowAdapter.publisherToFlowPublisher;

import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.Flow.Publisher;
import org.neo4j.driver.AccessMode;
import org.neo4j.driver.Bookmark;
import org.neo4j.driver.Query;
import org.neo4j.driver.TransactionConfig;
import org.neo4j.driver.internal.async.NetworkSession;
import org.neo4j.driver.internal.async.UnmanagedTransaction;
import org.neo4j.driver.internal.telemetry.ApiTelemetryWork;
import org.neo4j.driver.internal.telemetry.TelemetryApi;
import org.neo4j.driver.reactive.ReactiveResult;
import org.neo4j.driver.reactive.ReactiveSession;
import org.neo4j.driver.reactive.ReactiveTransaction;
import org.neo4j.driver.reactive.ReactiveTransactionCallback;

public class InternalReactiveSession extends AbstractReactiveSession
        implements ReactiveSession, BaseReactiveQueryRunner {
    public InternalReactiveSession(NetworkSession session) {
        super(session);
    }

    @Override
    protected ReactiveTransaction createTransaction(UnmanagedTransaction unmanagedTransaction) {
        return new InternalReactiveTransaction(unmanagedTransaction);
    }

    @Override
    protected org.reactivestreams.Publisher closeTransaction(ReactiveTransaction transaction, boolean commit) {
        return ((InternalReactiveTransaction) transaction).close(commit);
    }

    @Override
    public Publisher beginTransaction(TransactionConfig config) {
        return beginTransaction(config, null, new ApiTelemetryWork(TelemetryApi.UNMANAGED_TRANSACTION));
    }

    public Publisher beginTransaction(
            TransactionConfig config, String txType, ApiTelemetryWork apiTelemetryWork) {
        return publisherToFlowPublisher(doBeginTransaction(config, txType, apiTelemetryWork));
    }

    @Override
    public  Publisher executeRead(
            ReactiveTransactionCallback> callback, TransactionConfig config) {
        return publisherToFlowPublisher(runTransaction(
                AccessMode.READ,
                tx -> flowPublisherToFlux(callback.execute(new DelegatingReactiveTransactionContext(tx))),
                config));
    }

    @Override
    public  Publisher executeWrite(
            ReactiveTransactionCallback> callback, TransactionConfig config) {
        return publisherToFlowPublisher(runTransaction(
                AccessMode.WRITE,
                tx -> flowPublisherToFlux(callback.execute(new DelegatingReactiveTransactionContext(tx))),
                config));
    }

    @Override
    public Publisher run(Query query) {
        return run(query, TransactionConfig.empty());
    }

    @Override
    public Publisher run(Query query, TransactionConfig config) {
        return publisherToFlowPublisher(run(query, config, InternalReactiveResult::new));
    }

    @Override
    public Set lastBookmarks() {
        return new HashSet<>(session.lastBookmarks());
    }

    @Override
    public  Publisher close() {
        return publisherToFlowPublisher(doClose());
    }
}