Extended Who's Online

// ==UserScript==
// @name         Extended Who's Online
// @namespace    https://foxscotch.us/
// @version      1.1
// @description  Script that places all pages of the BLF Who's Online list onto one page.
// @author       Foxscotch
// @match        https://forum.blockland.us/index.php?action=who*
// @grant        none
// ==/UserScript==


// Change this to true if you want it to include guests
var includeGuests = false;

// Change this to true if you want it to automatically start when you load the user list
var automatic = false;


var userTable = document.getElementsByTagName('table')[2].children[0];

function emptyTable() {
    var tableLength = userTable.children.length
    for (var i = 1; i < tableLength - 1; i++) {
        userTable.removeChild(userTable.children[1]);
    }
}

function correctColors() {
    var tableLength = userTable.children.length
    for (var k = 1; k < tableLength - 1; k++) {
        if (k % 2 == 0) {
            userTable.children[k].className = 'windowbg';
        }
        else {
            userTable.children[k].className = 'windowbg2';
        }
    }
}

function clearDuplicates() {
    var duplicates = []
    for (var i = 1; i < userTable.children.length - 1; i++) {
        var username = userTable.children[i].getElementsByTagName('span')[0].children[0].innerHTML;
        if (duplicates.indexOf(username) == -1) {
            duplicates.push(username);
        }
        else {
            userTable.removeChild(userTable.children[i]);
        }
    }
}

function addUsers () {
    var pageCount = Number(document.getElementsByClassName('navPages')[document.getElementsByClassName('navPages').length - 1].innerHTML);
    var pagination = userTable.children[userTable.children.length - 1];

    var url = String(window.location);
    if (url.includes('start')) {
        url = url.replace(/;?start=[\d]+/, '');
    }

    for (var i = 2; i <= pageCount; i++) {
        var request = new XMLHttpRequest();
        request.responseType = 'document';
        request.onload = function () {
            var newUserTable = this.response.getElementsByTagName('table')[2].children[0];
            for (var j = 1; j < newUserTable.children.length - 1 ; j++) {
                var currentEntry = newUserTable.children[j];
                if (includeGuests) {
                    userTable.insertBefore(currentEntry, pagination);
                }
                else if (!currentEntry.children[0].innerHTML.includes('Guest')) {
                    userTable.insertBefore(currentEntry, pagination);
                }
            }
            correctColors();
            clearDuplicates();
        };
        request.open('GET', url + ';start=' + ((i - 2) * 30));
        request.send();
    }
}


if (automatic) {
    emptyTable();
    addUsers();
}
else {
    var button = document.createElement('button');
    button.innerHTML = 'Add users';

    place = document.body.children[2].children[0]
    button = place.insertBefore(button, place.children[0])

    button.addEventListener('click', function(){emptyTable();addUsers();});
}