the-guard-bot/handlers/commands/unadmin.js

'use strict';

// Utils
const { html } = require('../../utils/html');
const { isMaster } = require('../../utils/config');
const { link, scheduleDeletion } = require('../../utils/tg');
const { parse, strip } = require('../../utils/cmd');

// Bot
const { telegram } = require('../../bot');

// DB
const { getUser, unadmin } = require('../../stores/user');
const { listGroups } = require('../../stores/group');

const noop = Function.prototype;

const tgUnadmin = async (userToUnadmin) => {
	for (const group of await listGroups()) {
		telegram
			.promoteChatMember(group.id, userToUnadmin.id, {
				can_change_info: false,
				can_delete_messages: false,
				can_invite_users: false,
				can_pin_messages: false,
				can_promote_members: false,
				can_restrict_members: false,
			})
			.catch(noop);
	}
};

/** @param { import('../../typings/context').ExtendedContext } ctx */
const unAdminHandler = async (ctx) => {
	if (!isMaster(ctx.from)) return null;

	const { targets } = parse(ctx.message);

	if (targets.length !== 1) {
		return ctx
			.replyWithHTML('ℹ️ <b>Specify one user to unadmin.</b>')
			.then(scheduleDeletion());
	}

	const userToUnadmin = await getUser(strip(targets[0]));

	if (!userToUnadmin) {
		return ctx
			.replyWithHTML('❓ <b>User unknown.</b>')
			.then(scheduleDeletion());
	}

	if (userToUnadmin.status !== 'admin') {
		return ctx.replyWithHTML(
			html`ℹ️ ${link(userToUnadmin)} <b>is not admin.</b>`
		);
	}

	await tgUnadmin(userToUnadmin);

	await unadmin(userToUnadmin);

	return ctx.replyWithHTML(
		html`❗️ ${link(userToUnadmin)} <b>is no longer admin.</b>`
	);
};

module.exports = unAdminHandler;