// ==UserScript==
// @name        reddit modqueue checker
// @namespace       reddit_listen2
// @description     checks modqueue, duh
// @include     *.reddit.com/*
// ==/UserScript==

(function(){
    function check(p) {
        if (checking)
            return;
        var last = JSON.parse(localStorage['modqueue_last_checked']||'{}');
        var t = new Date().getTime();
        if (t - last < p) {
            show(JSON.parse(localStorage['modqueue_last_count']||'{}'));
        } else {
            req = new XMLHttpRequest();
            req.onreadystatechange = display;
            req.open("GET", "/r/mod/about/modqueue.json", true);
            req.send(null);
            mqalert.innerText += "*";
            checking = true;
        }
    }
    //"/message/unread/.json?mark=false"

    function display() {
        if (req.readyState === 4) {
            checking = false;
            if (req.status === 200) {
                n = JSON.parse(req.responseText).data.children.length;
                var t = new Date().getTime();
                show(n);
                localStorage['modqueue_last_count'] = JSON.stringify(n);
                localStorage['modqueue_last_checked'] = JSON.stringify(t);
            } else {
                mqalert.innerText = "mq X";
            }
        }
    }

    function show(n) {
        if (n === 0) {
            mqalert.style.color = def_color;
            mqalert.style.fontWeight = def_weight;
            mqalert.innerText = "mq 0";
        } else {
            mqalert.style.color = "orangered";
            mqalert.style.fontWeight = "bold";
            mqalert.innerText = "mq " + n;
        }
    }

    var modmail = document.getElementById("modmail");
    var mqsep = document.createElement("span");
    mqsep.className = "separator";
    mqsep.innerText = "|";
    modmail.parentNode.insertBefore(mqsep, modmail.nextSibling);

    var mqalert = document.createElement("a");
    mqalert.id = "mqalert";
    mqalert.href = "/r/mod/about/modqueue";
    mqalert.innerText = "mq ";
    mqsep.parentNode.insertBefore(mqalert, mqsep.nextSibling);

    var def_color = mqalert.style.color;
    var def_weight = mqalert.style.fontWeight;
    var checking = false;

    mqalert.addEventListener("mouseOver", function(){check(30000)});    //30 seconds

    check(360000);      //six minutes
})();