/* eslint-disable no-useless-escape */
// Copyright 2016 Documize Inc. <legal@documize.com>. All rights reserved.
//
// This software (Documize Community Edition) is licensed under
// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
//
// You can operate outside the AGPL restrictions by purchasing
// Documize Enterprise Edition and obtaining a commercial license
// by contacting <sales@documize.com>.
//
// https://documize.com

// Make url friendly slug from specified text.
// Has to handle non-english character text "Общее" text!
function makeSlug(text) {
	let s = slug(text, { mode: 'rfc3986', lower: true});

	// If slug does not recognise characters (e.g. chinese)
	// send back original characters.
	if (s === '') s = text;

	return s;
}

function makeId(len) {
    var text = "";
    var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

    for (var i = 0; i < len; i++) {
        text += possible.charAt(Math.floor(Math.random() * possible.length));
    }

    return text;
}

function endsWith(str, suffix) {
    return str.indexOf(suffix, str.length - suffix.length) !== -1;
}

function anonUserId() {
	return 'anon_' + makeId(11);
}

function isEmail(email) {
	var re = /^(([^<>()[\]\\.,;:\s@\"]+(\.[^<>()[\]\\.,;:\s@\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
	return re.test(email);
}

export default {
    makeSlug,
    makeId,
	endsWith,
	anonUserId,
	isEmail
};