!7

!include once #1017511 // Telegram Bots

import org.telegram.telegrambots.generics.BotSession;

static TelegramLongPollingBot bot;
static BotSession botSession;

p {
  fS apiToken = telegramBotToken_mandatory();

  ApiContextInitializer.init();
  bot = new TelegramLongPollingBot {
    public S getBotUsername() { ret "HelloComputer_bot"; }
    public S getBotToken() { ret apiToken; }
    
    public void onUpdateReceived(Update update) {
      pcall {
        print("Got update! " + update);
        Message msg = update.getMessage(); //update.getChannelPost();
        logQuotedWithDate(telegramFullUpdatesLogFile(), str(update));
        if (msg == null) ret;
        
        Voice voice = msg.getVoice();
        if (voice != null) {
          Int duration = voice.getDuration();
          S mimeType = voice.getMimeType();
          S fileID = voice.getFileId();
          print("Incoming voice message");
          printStructs(+duration, +mimeType, +fileID);
          // TODO: download how?
        }
        
        if (msg.hasText()) {
          S text = msg.getText();
          print("Incoming text: " + text);
          Chat chat = msg.getChat();
          User from = msg.getFrom();
          Map map = litorderedmap(
            where := chat == null ? null : chat.getId(),
            type := 'heard,
            date := localDateWithMilliseconds(),
            originalDate := msg.getDate(),
            globalID := aGlobalID(),
            +text);
            
          if (from != null)
            putAll(map, litorderedmap(
              userID := from.getId(),
              userFirstName := from.getFirstName(),
              userLastName := from.getLastName()));

          logStructure(telegramLogFile(), map);
          botAppendToMechList_combining("Telegram Bot Log", struct(map));
        }
      }
    }
  };

  botSession = new TelegramBotsApi().registerBot(bot);
  
  watchStructureLog_future(telegramBotToSendLog(), 100, voidfunc(Map map) {
    if (eq(map.get('action), 'send)) {
      long chatID = or((Long) _get(map, 'where), telegram_chatID());
      S globalID = or2(getString(map, 'globalID), aGlobalID());
      telegram_sendWithLogging(bot, chatID, getString(map, 'text), globalID);
      putAll(map, litorderedmap(
        date := localDateWithMilliseconds(),
        type := 'sent,
        +globalID,
        +chatID));
      botAppendToMechList_combining("Telegram Bot Log", struct(map));
    }
  });
  
  print("Telegram Bot running.");
}

svoid cleanMeUp {
  if (botSession != null) {
    print("Closing bot session");
    botSession.stop();
    print("Closed bot session");
    botSession = null;
  }
}