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package kz.ilotterytea.maxon;
import kz.ilotterytea.maxon.shared.Identity;
import kz.ilotterytea.maxon.shared.exceptions.PlayerKickException;
import org.java_websocket.WebSocket;
import org.java_websocket.framing.CloseFrame;
import org.java_websocket.handshake.ClientHandshake;
import org.java_websocket.server.WebSocketServer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayInputStream;
import java.io.ObjectInputStream;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Optional;
public class MaxonServer extends WebSocketServer {
private static MaxonServer instance;
private final Logger log;
private final ArrayList<PlayerConnection> connections;
private MaxonServer() {
super(new InetSocketAddress(31084));
this.log = LoggerFactory.getLogger(MaxonServer.class);
this.connections = new ArrayList<>();
}
@Override
public void onOpen(WebSocket conn, ClientHandshake handshake) {
PlayerConnection connection = new PlayerConnection(conn);
log.info("{} ({}) connected!", connection, conn.getRemoteSocketAddress().getAddress().getHostAddress());
this.connections.add(connection);
}
@Override
public void onClose(WebSocket conn, int code, String reason, boolean remote) {
Optional<PlayerConnection> connection = this.connections.stream().filter((x) -> x.getConnection().equals(conn)).findFirst();
if (connection.isPresent()) {
log.info("{} has left! Reason: {} {}", connection.get(), code, reason);
this.connections.remove(connection.get());
} else {
log.info("Unknown connection was closed! Reason: {} {}", code, reason);
}
}
@Override
public void onMessage(WebSocket conn, String message) {
this.connections.removeIf((x) -> x.getConnection().equals(conn));
conn.send("Invalid input.");
conn.close(CloseFrame.UNEXPECTED_CONDITION);
}
@Override
public void onMessage(WebSocket conn, ByteBuffer message) {
Optional<PlayerConnection> playerConnection = this.connections.stream().filter((x) -> x.getConnection().equals(conn)).findFirst();
if (playerConnection.isEmpty()) {
conn.close(5001, "Your PlayerConnection was not found!");
return;
}
PlayerConnection c = playerConnection.get();
try {
// Deserialize the object
ByteArrayInputStream bais = new ByteArrayInputStream(message.array());
ObjectInputStream ois = new ObjectInputStream(bais);
Object obj = ois.readObject();
if (obj instanceof Identity identity) ServerHandlers.handleIdentity(c, identity);
else kickConnection(c, PlayerKickException.internalServerError());
} catch (PlayerKickException e) {
kickConnection(c, e);
} catch (Exception e) {
log.error("An exception was thrown while processing message", e);
kickConnection(c, PlayerKickException.internalServerError());
}
}
@Override
public void onError(WebSocket conn, Exception ex) {
log.error("Something went wrong", ex);
}
@Override
public void onStart() {
log.info("Running the server on port {}!", getPort());
setConnectionLostTimeout(0);
setConnectionLostTimeout(100);
}
public void kickConnection(PlayerConnection connection, PlayerKickException e) {
connection.send(e);
connection.getConnection().close();
this.connections.remove(connection);
log.debug("Kicked out {}! Reason: {}", connection, e.getMessage());
}
public static MaxonServer getInstance() {
if (instance == null) instance = new MaxonServer();
return instance;
}
public ArrayList<PlayerConnection> getPlayerConnections() {
return connections;
}
}
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