package envoy.server;

import java.io.IOException;
import java.util.ArrayList;

import envoy.data.Contacts;
import envoy.data.LoginCredentials;
import envoy.data.User;
import envoy.server.net.ObjectWriteProxy;

/**
 * This {@link ObjectProcessor} handles {@link LoginCredentials}.<br>
 * <br>
 * Project: <strong>envoy-server-standalone</strong><br>
 * File: <strong>LoginCredentialProcessor.java</strong><br>
 * Created: <strong>30.12.2019</strong><br>
 *
 * @author Kai S. K. Engelbart
 * @since Envoy Server Standalone v0.1-alpha
 */
public class LoginCredentialProcessor implements ObjectProcessor<LoginCredentials> {

	// TODO: Acquire user IDs from database
	private static long currentUserId = 1;

	@Override
	public Class<LoginCredentials> getInputClass() { return LoginCredentials.class; }

	@Override
	public void process(LoginCredentials input, long socketId, ObjectWriteProxy writeProxy) throws IOException {
		System.out.println(String.format("Received login credentials %s from socket ID %d", input, socketId));

		// Create user
		User user = new User(currentUserId++, input.getName());
		ConnectionManager.getInstance().registerUser(socketId, user.getId());

		// Create contacts
		Contacts contacts = new Contacts(user.getId(), new ArrayList<>());

		// Complete handshake
		System.out.println("Sending user...");
		writeProxy.write(socketId, user);
		System.out.println("Sending contacts...");
		writeProxy.write(socketId, contacts);
	}
}