sedekah_bot.js

module['exports'] = function sedekahBot (hook) {

  /*
  TODO: HIGH PRIORITY
  [ ] Save the data to Firebase or Google Spreadsheet
  TODO: MEDIUM PRIORITY
  [ ] Invite developers to collaborate
  */

  // Version Information and Debug Flag
  var VERSION = '0.0.2 oleh @abdshomad';
  console.log('Begin Bot Version ' + VERSION);
  var debug_flag = true,
      debug_message = '\n\nDEBUG (ABAIKAN): ';

  // Required modules
  var request = require('request');
  var S = require('string');

  // simple parsing of received text
  var text_version = 'Versi ' + VERSION,
      text_message = hook.params.message.text,
      text_command = text_message.split(' ', 1)[0] + '',
      text_content = text_message.replace(text_command, '').trim();
  if(text_command.indexOf('@') > 1) text_command = text_message.split('@')[0]; // remove @botname_bot

  // Message Template Constant
  var PENDAFTARAN_BEGIN = '/data \n\nBot Sedekah ' + text_version + '\n\nLengkapilah data berikut untuk mulai bersedekah: \n\n------- begin data ------- \n\n',
      SELAMAT_DATANG = 'Bismillaah. \n\nSelamat datang di Bot Sedekah ' + text_version + '. \nGunakan/klik perintah-perintah di bawah ini untuk melanjutkan proses pendaftaran Anda: \n\n/daftar : Memulai proses pendaftaran. \n\n/sedekah : Mulai bersedekah. \n\n/bantuan : Menampilkan teks bantuan ini.\n\nAlhamdulillaah.',
      PENDAFTARAN_END = '\n------- end data -------\n\nAlhamdulillaah.',
      FORM_SEDEKAH = '#sedekah \n\nNama Lengkap : \nNomor HP : \nE-mail : \nAlamat Pengambilan Barang : \n',
      PENDAFTARAN_SEDEKAH = PENDAFTARAN_BEGIN + FORM_SEDEKAH + PENDAFTARAN_END,
      PENDAFTARAN_LENGKAP = PENDAFTARAN_BEGIN + PENDAFTARAN_END,
      TERIMA_KASIH = 'Alhamdulillaah. Terima kasih. Informasi Anda telah kami simpan. \nTerima kasih telah menggunakan layanan Bot Sedekah ' + text_version + '.';

  console.log('Begin create JSON data');
  // Begin create JSON data
  var lines = text_message.split(/\r\n|\n|\r/),
      json_data = {},
      field_name = '',
      start_flag = false,
      finish_flag = false;
  for (var i = 0, segments; i < lines.length; i++) {
    segments = lines[i].trim().split(/\s*[=:]\s*/);

    // start_flag==true && finish_flag==false is here to prevent
    // non-data lines to be included inside json_data
    if(segments.length==2 && start_flag==true && finish_flag==false) {
      field_name = S(S(segments[0]).slugify().s).replaceAll('-', '_').s;
      json_data[field_name] = segments[1];
    } else {
      // segments.length == 1
      // meaning : This line does not have field name).
      // meaning : This line is still belongs to previous line.
      // action  : combine this line with previous line(s).
      if(segments[0]=='—---— end data —---—') finish_flag = true;
      if(field_name!='' && start_flag==true && finish_flag==false) {
        json_data[field_name] += segments[0] + '\n';
      }
      if(segments[0]=='—---— begin data —---—') start_flag = true;
    }
  }
  console.log('End create JSON data');

  debug_message += '\nJSON.stringify(json_data) = ' + JSON.stringify(json_data);

  console.log('Begin simple routing for text_command using switch()');
  switch(text_command) {
    case '/bantuan':
    case '/start':
    case '/mulai':
      text_message = SELAMAT_DATANG;
      break;
    case '/end':
    case '/finish':
    case '/selesai':
      text_message = TERIMA_KASIH;
      break;
    case '/daftar':
    case '/data':
    case '/data_diri':
      if(text_content == 'undefined' || text_content.length == 0) {
        text_message = PENDAFTARAN_SEDEKAH;
      } else {
        text_message = TERIMA_KASIH;
      }
      break;
    default:
        text_message = TERIMA_KASIH;
  }
  console.log('End simple routing for text_command using switch()');

  if(debug_flag) {
    text_message = text_message + debug_message;
  }

  console.log('Begin sending request.post to Telegram API');
  request
    .post('https://api.telegram.org/bot' + hook.env.sedekah_bot_key + '/sendMessage')
    .form({
      "chat_id": hook.params.message.chat.id,
      "text": text_message
    });

  // arsip
  request
    .post('https://api.telegram.org/bot' + hook.env.arsip_bot_key + '/sendMessage')
    .form({
      "chat_id": hook.params.message.chat.id,
      "text": text_message
    });

  var user = hook.params.message.new_chat_participant || hook.params.message.new_chat_member;
  if(user) {
    request
      .post('https://api.telegram.org/bot' + hook.env.sedekah_bot_key + '/sendMessage')
      .form({
        "chat_id": hook.params.message.chat.id,
        "text": "Assalaamu'alaikum, Ahlan " + user.first_name + ' ' + user.last_name + ', \n\nKlik /daftar untuk mengisi biodata Anda.'
      });
  }  
  console.log('End Bot Version ' + VERSION);
};