text: /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
             ______     ______     ______   __  __     __     ______
            /\  == \   /\  __ \   /\__  _\ /\ \/ /    /\ \   /\__  _\
            \ \  __<   \ \ \/\ \  \/_/\ \/ \ \  _"-.  \ \ \  \/_/\ \/
             \ \_____\  \ \_____\    \ \_\  \ \_\ \_\  \ \_\    \ \_\
              \/_____/   \/_____/     \/_/   \/_/\/_/   \/_/     \/_/
  
  
  This is a sample Slack bot built with Botkit.
  
  This bot demonstrates many of the core features of Botkit:
  
  * Connect to Slack using the real time API
  * Receive messages based on "spoken" patterns
  * Reply to messages
  * Use the conversation system to ask questions
  * Use the built in storage system to store and retrieve information
    for a user.
  
  # RUN THE BOT:
  
    Get a Bot token from Slack:
  
      -> http://my.slack.com/services/new/bot
  
    Run your bot from the command line:
  
      token=<MY TOKEN> node slack_bot.js
  
  # USE THE BOT:
  
    Find your bot inside Slack to send it a direct message.
  
    Say: "Hello"
  
    The bot will reply "Hello!"
  
    Say: "who are you?"
  
    The bot will tell you its name, where it is running, and for how long.
  
    Say: "Call me <nickname>"
  
    Tell the bot your nickname. Now you are friends.
  
    Say: "who am I?"
  
    The bot will tell you your nickname, if it knows one for you.
  
    Say: "shutdown"
  
    The bot will ask if you are sure, and then shut itself down.
  
    Make sure to invite your bot into other channels using /invite @<my bot>!
  
  # EXTEND THE BOT:
  
    Botkit has many features for building cool and useful bots!
  
    Read all about it here:
  
      -> http://howdy.ai/botkit
  
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
  
  require('dotenv').config();
  
  if (!process.env.BOT_TOKEN) {
      console.log('Error: Specify token in environment');
      process.exit(1);
  }
  
  var Botkit = require('./lib/Botkit.js');
  var os = require('os');
  
  var controller = Botkit.slackbot({
      debug: true
  });
  
  var bot = controller.spawn({
      token: process.env.BOT_TOKEN
  }).startRTM();
  
  
  controller.hears(['hello', 'hi'], 'direct_message,direct_mention,mention', function(bot, message) {
  
      bot.api.reactions.add({
          timestamp: message.ts,
          channel: message.channel,
          name: 'robot_face',
      }, function(err, res) {
          if (err) {
              bot.botkit.log('Failed to add emoji reaction :(', err);
          }
      });
  
  
      controller.storage.users.get(message.user, function(err, user) {
          if (user && user.name) {
              bot.reply(message, 'Hello ' + user.name + '!!');
          } else {
              bot.reply(message, 'Hello.');
          }
      });
  });
  
  controller.hears(['call me (.*)', 'my name is (.*)'], 'direct_message,direct_mention,mention', function(bot, message) {
      var name = message.match[1];
      controller.storage.users.get(message.user, function(err, user) {
          if (!user) {
              user = {
                  id: message.user,
              };
          }
          user.name = name;
          controller.storage.users.save(user, function(err, id) {
              bot.reply(message, 'Got it. I will call you ' + user.name + ' from now on.');
          });
      });
  });
  
  controller.hears(['what is my name', 'who am i'], 'direct_message,direct_mention,mention', function(bot, message) {
  
      controller.storage.users.get(message.user, function(err, user) {
          if (user && user.name) {
              bot.reply(message, 'Your name is ' + user.name);
          } else {
              bot.startConversation(message, function(err, convo) {
                  if (!err) {
                      convo.say('I do not know your name yet!');
                      convo.ask('What should I call you?', function(response, convo) {
                          convo.ask('You want me to call you `' + response.text + '`?', [
                              {
                                  pattern: 'yes',
                                  callback: function(response, convo) {
                                      // since no further messages are queued after this,
                                      // the conversation will end naturally with status == 'completed'
                                      convo.next();
                                  }
                              },
                              {
                                  pattern: 'no',
                                  callback: function(response, convo) {
                                      // stop the conversation. this will cause it to end with status == 'stopped'
                                      convo.stop();
                                  }
                              },
                              {
                                  default: true,
                                  callback: function(response, convo) {
                                      convo.repeat();
                                      convo.next();
                                  }
                              }
                          ]);
  
                          convo.next();
  
                      }, {'key': 'nickname'}); // store the results in a field called nickname
  
                      convo.on('end', function(convo) {
                          if (convo.status == 'completed') {
                              bot.reply(message, 'OK! I will update my dossier...');
  
                              controller.storage.users.get(message.user, function(err, user) {
                                  if (!user) {
                                      user = {
                                          id: message.user,
                                      };
                                  }
                                  user.name = convo.extractResponse('nickname');
                                  controller.storage.users.save(user, function(err, id) {
                                      bot.reply(message, 'Got it. I will call you ' + user.name + ' from now on.');
                                  });
                              });
  
  
  
                          } else {
                              // this happens if the conversation ended prematurely for some reason
                              bot.reply(message, 'OK, nevermind!');
                          }
                      });
                  }
              });
          }
      });
  });
  
  
  controller.hears(['shutdown'], 'direct_message,direct_mention,mention', function(bot, message) {
  
      bot.startConversation(message, function(err, convo) {
  
          convo.ask('Are you sure you want me to shutdown?', [
              {
                  pattern: bot.utterances.yes,
                  callback: function(response, convo) {
                      convo.say('Bye!');
                      convo.next();
                      setTimeout(function() {
                          process.exit();
                      }, 3000);
                  }
              },
          {
              pattern: bot.utterances.no,
              default: true,
              callback: function(response, convo) {
                  convo.say('*Phew!*');
                  convo.next();
              }
          }
          ]);
      });
  });
  
  
  controller.hears(['uptime', 'identify yourself', 'who are you', 'what is your name'],
      'direct_message,direct_mention,mention', function(bot, message) {
  
          var hostname = os.hostname();
          var uptime = formatUptime(process.uptime());
  
          bot.reply(message,
              ':robot_face: I am a bot named <@' + bot.identity.name +
               '>. I have been running for ' + uptime + ' on ' + hostname + '.');
  
      });
  
  function formatUptime(uptime) {
      var unit = 'second';
      if (uptime > 60) {
          uptime = uptime / 60;
          unit = 'minute';
      }
      if (uptime > 60) {
          uptime = uptime / 60;
          unit = 'hour';
      }
      if (uptime != 1) {
          unit = unit + 's';
      }
  
      uptime = uptime + ' ' + unit;
      return uptime;
  }
  