the-guard-bot/handlers/regex/runCustomCmd.js

'use strict';

const { hears } = require('telegraf');
const R = require('ramda');

// DB
const { getCommand } = require('../../stores/command');

const { scheduleDeletion } = require('../../utils/tg');

const { isMaster } = require('../../utils/config');

const config = require('../../config');

const deleteCustom = config.deleteCustom || { longerThan: Infinity };

const capitalize = R.replace(/^./, R.toUpper);

const getRepliedToId = R.path([ 'reply_to_message', 'message_id' ]);

const typeToMethod = type =>
	type === 'text'
		? 'replyWithHTML'
		: `replyWith${capitalize(type)}`;

const autoDelete = ({ content, type }) => {
	switch (type) {
	case 'text':
		return content.length > deleteCustom.longerThan;
	case 'copy':
		return (content.text || '').length > deleteCustom.longerThan;
	default:
		return false;
	}
};

const hasRole = (role, from) => {
	switch (role.toLowerCase()) {
	case 'master':
		return isMaster(from);
	case 'admins':
		return from && from.status === 'admin';
	default:
		return true;
	}
};

const runCustomCmdHandler = async (ctx, next) => {
	const commandName = ctx.match[1].toLowerCase();
	const command = await getCommand({ isActive: true, name: commandName });

	if (!command || !hasRole(command.role, ctx.from)) {
		return next();
	}

	const { caption, content, type } = command;

	const options = {
		...caption && { caption },
		disable_web_page_preview: true,
		reply_to_message_id: getRepliedToId(ctx.message),
	};

	return ctx[typeToMethod(type)](content, options)
		.then(scheduleDeletion(autoDelete(command) && deleteCustom.after));
};

module.exports = hears(/^! ?(\w+)/, runCustomCmdHandler);