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!7

!include once #1017511 // Telegram Bots

import org.telegram.telegrambots.generics.BotSession;

static TelegramLongPollingBot bot;
static BotSession botSession;

sbool useWitAI = true;

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;
        final Chat chat = msg.getChat();
        final User from = msg.getFrom();
        
        Voice voice = msg.getVoice();
        if (voice != null) {
          Int duration = voice.getDuration();
          fS mimeType = voice.getMimeType();
          S fileID = voice.getFileId();
          print("Incoming voice message, downloading");
          printStructs(+duration, +mimeType, +fileID);
          
          replace TgFile with org.telegram.telegrambots.api.objects.File.
          
          // Download voice message
          new GetFile getFileMethod;
          getFileMethod.setFileId(fileID);
          TgFile tgFile = execute(getFileMethod);
          
          downloadFileAsync(tgFile, new DownloadFileCallback<TgFile> {
            public void onResult(TgFile file, java.io.File f) {
              print("Got voice message: " + fileInfo(f));
              // Assuming ogg
              final File f2 = javaxDataDir("Stored Voice Messages/" + (from != null ? from.getId() : 0) + "-" + now() + ".ogg");
              copyFileVerbose(f, f2);
              if (useWitAI && nempty(witAITokenOpt())) thread "Wit.AI" {
                File f3 = f2;
                S _mimeType = mimeType;
                if (eq(mimeType, "audio/ogg")) {
                  oggToMP3(f2, f3 = replaceFileExtension(f2, ".mp3"));
                  _mimeType = "audio/mpeg3";
                  printFileInfo(f3);
                }

                S text = witAI_recognizeAudio(f3, _mimeType);
                if (nempty(text))
                  telegram_postToSendLog(
                    "I think you said: " + quote(text),
                    chat == null ? null : chat.getId());
              }
            }
            
            public void onException(TgFile file, Exception e) {
              print("Couldn't download voice message: " + e);
            }
          });
        }
        
        if (msg.hasText()) {
          S text = msg.getText();
          print("Incoming text: " + text);
          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;
  }
}