Added /leave

Author: wojpawlik

README.md

@@ -2,7 +2,7 @@
   <img src="http://imageupload.co.uk/images/2017/09/28/zzzzz.png" width="180" height="180">
   <h1 align="center">The Guard Bot</h1>
 </p>
-The Guard is a Telegram bot made to help admins manage their groups. 
+The Guard is a Telegram bot made to help admins manage their groups.
 
 Initially created to moderate [The Devs Network](https://thedevs.network).
 
@@ -24,6 +24,7 @@ Command  | Rule   | Description
 -------- | ------ | -----------
 `/admin` | _Master_ | Makes the user admin.
 `/unadmin` | _Master_ | Demotes the user from admin list.
+`/leave` | _Master_ | Makes the bot leave the group cleanly.
 `/warn <reason>` | _Admin_ | Warns the user.
 `/unwarn` | _Admin_ | Removes the last warn from the user.
 `/nowarns` | _Admin_ | Clears warns for the user.

handlers/commands/commands.js

@@ -4,6 +4,7 @@ const commandReference = `\
 <b>Master commands</b>:
 <code>/admin</code> - Makes the user admin.
 <code>/unadmin</code> - Demotes the user from admin list.
+<code>/leave</code> - Makes the bot leave the group cleanly.
 
 <b>Admin commands</b>:
 <code>/warn &lt;reason&gt;</code> - Warns the user.

handlers/commands/leave.js

@@ -0,0 +1,15 @@
+'use strict';
+
+const { masterID } = require('../../config.json');
+
+const { removeGroup } = require('../../stores/group');
+
+const leaveCommandHandler = async ctx => {
+	if (ctx.from.id !== masterID) {
+		return null;
+	}
+	await removeGroup(ctx.chat);
+	return ctx.telegram.leaveChat(ctx.chat.id);
+};
+
+module.exports = leaveCommandHandler;

index.js

@@ -23,6 +23,7 @@ const addedToGroupHandler = require('./handlers/middlewares/addedToGroup');
 // Commmands Handlers
 const adminHandler = require('./handlers/commands/admin');
 const unAdminHandler = require('./handlers/commands/unadmin');
+const leaveCommandHandler = require('./handlers/commands/leave');
 const warnHandler = require('./handlers/commands/warn');
 const unwarnHandler = require('./handlers/commands/unwarn');
 const nowarnsHandler = require('./handlers/commands/nowarns');
@@ -45,6 +46,7 @@ bot.on('new_chat_members', antibotHandler);
 bot.on([ 'new_chat_members', 'left_chat_member' ], deleteAfter(10 * 60 * 1000));
 bot.command('admin', adminHandler);
 bot.command('unadmin', unAdminHandler);
+bot.command('leave', leaveCommandHandler);
 bot.command('warn', warnHandler);
 bot.command('unwarn', unwarnHandler);
 bot.command('nowarns', nowarnsHandler);

stores/group.js

@@ -21,8 +21,12 @@ const listGroups = () =>
 const managesGroup = group =>
 	Group.findOne({ id: group.id });
 
+const removeGroup = ({ id }) =>
+	Group.remove({ id });
+
 module.exports = {
 	addGroup,
 	listGroups,
 	managesGroup,
+	removeGroup,
 };