BlabBlock v.1

// ==UserScript==
// @name         BlabBlock v.1
// @version      0.1
// @description  fuck the wurld
// @author       @paradoxal420
// @match        https://blab.im/*
// @grant        none
// ==/UserScript==

'use strict';
$(function() {

    if (!localStorage.blockList)
    {
        localStorage.blockList = JSON.stringify([]);
    }

    var ignoreUser = function(usr)
    {
        var newList = JSON.parse(localStorage.blockList);
        if (localStorage.blockList.indexOf(usr) == -1)
        {
            newList.push(usr);
            console.info(usr + ' - added to blocklist');
            localStorage.blockList = JSON.stringify(newList);
        }
        else
        {
            console.error('User Exists'); // Shouldn't be triggered anyways
        }
    }

    if (window.ignoreUser == undefined)
    {
        window.ignoreUser = ignoreUser;
    }

    function genIgnoreButton() {
        $('li.chat-message a.username span:last-child').css('font-size', '14px');
        if ($('li.chat-message a.username span:last-child'))
        {
            var users = $('li.chat-message a.username span:last-child')
            , index = 0;
            while (index < users.length - 1)
            {
                index++;
                if (users[index].parentElement.parentElement.innerHTML.substr(0, 5) != '<butt')
                {
                    users[index].parentElement.parentElement.innerHTML = '<button onclick="ignoreUser(\'' + users[index].innerText + '\')" style="opacity:0.5;font-size: 8px;">I</button> ' + users[index].parentElement.parentElement.innerHTML;
                }

            }
        }
    }

    setInterval(genIgnoreButton, 200);

    function deleteMessages()
    {
        if (localStorage.blockList)
        {
            var usernames = JSON.parse(localStorage.blockList);
            for (var i = 0; i < usernames.length; i++)
            {
                $('span:contains("' + usernames[i] + '")').parent().parent().parent().parent().parent().remove();
            }
        }

    }
    setInterval(deleteMessages, 200);
});