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package event;

import java.nio.file.Paths;

import java.util.ArrayList;

import java.util.List;

import java.util.concurrent.CountDownLatch;

import java.util.function.Consumer;

import io.github.cdimascio.dotenv.Dotenv;

import io.reactivex.disposables.Disposable;

import net.flashbots.MevShareClient;

import net.flashbots.models.common.Network;

import net.flashbots.models.event.MevShareEvent;

import org.web3j.crypto.Credentials;

import org.web3j.protocol.Web3j;

import org.web3j.protocol.http.HttpService;

/**

* SSE subscribe Example

*

* @author kaichen

* @since 0.1.0

*/

public class SseSubscribe {

public static void main(String[] args) throws InterruptedException {

Dotenv dotenv = Dotenv.configure()

.directory(Paths.get("", "example").toAbsolutePath().toString())

.filename(".env")

.load();

Credentials authSigner = Credentials.create(dotenv.get("AUTH_PRIVATE_KEY"));

Web3j web3j = Web3j.build(new HttpService(dotenv.get("PROVIDER_URL")));

var mevShareClient = new MevShareClient(Network.GOERLI, authSigner, web3j);

CountDownLatch latch = new CountDownLatch(5);

List<MevShareEvent> events = new ArrayList<>();

Consumer<MevShareEvent> eventListener = mevShareEvent -> {

events.add(mevShareEvent);

latch.countDown();

};

Disposable disposable = mevShareClient.subscribe(eventListener);

latch.await();

// remember to release when no longer to subscribe events

disposable.dispose();

System.out.println(events);

CountDownLatch latch1 = new CountDownLatch(5);

List<MevShareEvent> txEvents = new ArrayList<>();

Consumer<MevShareEvent> txEventListener = mevShareEvent -> {

txEvents.add(mevShareEvent);

latch1.countDown();

};

Disposable disposable1 = mevShareClient.subscribeTx(txEventListener);

latch1.await();

// remember to release when no longer to subscribe events

disposable1.dispose();

System.out.println(txEvents);

mevShareClient.close();

// subscribe bundle events

// bundle events are very rare, so we comment it out

// CountDownLatch latch2 = new CountDownLatch(1);

// List<MevShareEvent> bundleEvents = new ArrayList<>();

// Consumer<MevShareEvent> bundleEventListener = mevShareEvent -> {

// bundleEvents.add(mevShareEvent);

// latch2.countDown();

// };

// Disposable disposable2 = mevShareClient.subscribeBundle(bundleEventListener);

// latch2.await();

//

// // remember to release when no longer to subscribe events

// disposable2.dispose();

//

// System.out.println(bundleEvents);

}

}