!7

lib 1400120 lib 1400115 // JTelegramBot
lib 1400116 lib 1400117 lib 1400118 lib 1400119 // dependencies

import io.fouad.jtb.core.*;
import io.fouad.jtb.core.enums.*;
import io.fouad.jtb.core.beans.*;
import io.fouad.jtb.core.builders.*;

p-exp {
  S apiToken = trim(loadTextFileMandatory(javaxSecretDir("telegram-bot-token.txt")));

  UpdateHandler updateHandler = new SimpleUpdateHandler {
    public void onMessageReceived(TelegramBotApi api, int _id, Message message) {
      pcall {
        print("Got message!");
        print("Text:");
        printIndent("> ", message.getText());
        User u = message.getFrom();
        printStruct("From", ll(u.getId(), u.getFirstName(), u.getLastName(), u.getUsername()));
        print();
        
        ChatIdentifier id = ChatIdentifier.byId(u.getId());
        
        api.sendChatAction(id, ChatAction.TYPING);
        sleepSeconds(3);
        api.sendMessage(
          id, // ChatIdentifier targetChatIdentifier,
          "Hello " + u.getFirstName() + "!",
          null, // ParseMode parseMode,
  	      null, // Boolean disableLinkPreviews,
  	      null, // Boolean silentMessage,
  	      null, // Integer replyToMessageId,
  	      null); // ReplyMarkup replyMarkup
      }
    }
  };
  
  JTelegramBot bot = new JTelegramBot("HelloComputer_bot", apiToken, updateHandler);
  bot.startAsync();
  
  long chatID = -1001303287441L;
  print("Chat: " + ApiBuilder.api(bot).getChat()
    //.byChatUsername("Hello_Computer")
    .byChatId(chatID)
    .execute());
    
  bot.sendMessage(ChatIdentifier.byId(chatID),
    "Hello channel", null, null, null, null, null);
}

Began life as a copy of #1017464