Reformulation of bot structure

commands/whois.js

@@ -0,0 +1,28 @@
+module.exports = function(bot, msg) {
+  const chatId = msg.chat.id;
+  const userName = msg.from.first_name;
+  const userId = msg.from.id;
+  const userHandle = msg.from.username;
+  const isBot = msg.from.is_bot;
+  const userPremium = msg.from.is_premium;
+  const userLang = msg.from.language_code;
+  let haveUsername = "";
+  let userPremiumOutput = "";
+  
+  if (userPremium) {
+    userPremiumOutput = "*You have a Telegram Premium subscription.*";
+  } else {
+    userPremiumOutput = "*You don't have a Telegram Premium subscription.*";
+  }
+
+  if (userHandle) {
+    haveUsername = `*Your username is:* @${userHandle}`;
+  } else {
+    haveUsername = "*Your username is:* none";
+  }
+
+  const message = `*Your name is:* ${userName}\n${haveUsername}\n*Your ID is:* ${userId}\n*You are a bot:* ${isBot}\n*Your language:* ${userLang}\n\n${userPremiumOutput}`;
+
+  bot.sendMessage(chatId, message, { parse_mode: 'Markdown' })
+    .catch(error => console.error('WARN: Message cannot be sent: ', error));
+}