New handlers: regex/groupLinker, unmatched

handlers/regex/groupLinker.js

@@ -0,0 +1,27 @@
+'use strict';
+
+const { hears } = require('telegraf');
+const XRegExp = require('xregexp');
+
+const { managesGroup } = require.main.require('./stores/group');
+
+const regex = /^(?:Link to\s+)?(.+) group(?: link)?\s*\?*$/i;
+
+const handler = async (ctx, next) => {
+	let [ , groupName ] = ctx.match;
+	if (groupName.toLowerCase() === 'this') {
+		if (!ctx.chat.title) return next();
+		groupName = ctx.chat.title;
+	}
+
+	const $regex = XRegExp.tag('i')`${groupName}`;
+
+	const group = await managesGroup({ title: { $regex } });
+	const { link } = group || {};
+
+	if (!link) return next();
+
+	return ctx.reply(link, { reply_to_message_id: ctx.message.message_id });
+};
+
+module.exports = hears(regex, handler);

handlers/regex/index.js

@@ -0,0 +1,9 @@
+'use strict';
+
+const { compose } = require('telegraf');
+
+/* eslint-disable global-require */
+
+module.exports = compose([
+	require('./groupLinker'),
+]);

handlers/unmatched.js

@@ -0,0 +1,9 @@
+'use strict';
+
+const R = require('ramda');
+const Tf = require('telegraf');
+
+module.exports = Tf.optional(
+	R.pathEq([ 'chat', 'type' ], 'private'),
+	Tf.reply('Sorry, I couldn\'t understand that, do you need /help?')
+);

index.js

@@ -11,6 +11,7 @@ const bot = require('./bot');
 
 bot.telegram.getMe().then((botInfo) => {
 	bot.options.username = botInfo.username;
+	bot.context.botInfo = botInfo;
 });
 
 bot.use(
@@ -18,6 +19,8 @@ bot.use(
 	require('./handlers/messages'),
 	require('./plugins'),
 	require('./handlers/commands'),
+	require('./handlers/regex'),
+	require('./handlers/unmatched'),
 );
 
 

package-lock.json

@@ -1421,6 +1421,11 @@
         "mkdirp": "0.5.1"
       }
     },
+    "xregexp": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-4.0.0.tgz",
+      "integrity": "sha512-PHyM+sQouu7xspQQwELlGwwd05mXUFqwFYfqPO0cC7x4fxyHnnuetmQr6CjJiafIDoH4MogHb9dOoJzR/Y4rFg=="
+    },
     "xtend": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",

package.json

@@ -32,7 +32,8 @@
     "millisecond": "^0.1.2",
     "nedb-promise": "^2.0.1",
     "ramda": "^0.25.0",
-    "telegraf": "^3.15.3"
+    "telegraf": "^3.15.3",
+    "xregexp": "^4.0.0"
   },
   "engines": {
     "node": ">=8.1.3"