src/main/java/files/App.java


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package files;

import com.pengrad.telegrambot.TelegramBot;
import com.pengrad.telegrambot.UpdatesListener;
import com.pengrad.telegrambot.model.Message;
import com.pengrad.telegrambot.request.SendMessage;

import com.pengrad.telegrambot.request.SendPhoto;
import files.entity.User;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import java.io.FileInputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Properties;

public class App {
    public static void main(String[] args) throws IOException {
        // Loading properties
        Properties properties = new Properties();
        properties.load(new FileInputStream("app.properties"));

        // Creating telegram bot
        TelegramBot bot = new TelegramBot(properties.getProperty("telegram_token"));

        bot.setUpdatesListener(updates -> {
            updates.forEach(update -> {
                Long telegramId = update.message().from().id();

                EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("animarfo");
                EntityManager manager = entityManagerFactory.createEntityManager();
                if(manager.find(User.class, telegramId) == null) {
                    String fullName = update.message().from().firstName();
                    Boolean isBot = update.message().from().isBot();
                    String username = update.message().from().username();
                    String date = new SimpleDateFormat("dd.MM.yyyy HH:mm:ss").format(new Date(update.message().date() * 1000L));
                    if (update.message().chat().lastName() != null) fullName += " " + update.message().chat().lastName();

                    bot.execute(new SendMessage(update.message().chat().id(), "Привет!"));

                    User user = new User(telegramId, isBot, fullName, date);
                    System.out.println(user.getFullName());
                    manager.getTransaction().begin();
                    manager.merge(user);
                    manager.getTransaction().commit();

                    manager.close();
                    entityManagerFactory.close();
                }
                Anime[] anime = new Anime[0];
                try {
                    anime = Parser.getAnimeAtMainMenu("https://animego.org/anime?sort=a.createdAt&direction=desc");
                } catch (IOException e) {
                    e.printStackTrace();
                }
                bot.execute(new SendPhoto(update.message().chat().id(), anime[0].getImage()).caption(anime[0].showInfo()));
            });
            return UpdatesListener.CONFIRMED_UPDATES_ALL;
        });
    }
}