// ==UserScript==
// @name           Torrenter
// @namespace      http://www.google.com/search?q=mabakay
// @description    Dodaje linki kierujące do stron z torrentami.
// @include        http://release24.pl/*
// @include        http://www.filmweb.pl/*
// @grant		   none
// @copyright      2010 - 2014, mabakay
// @date           22 June 2014
// @version        1.42
// @license        GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html
// @downloadURL none
// ==/UserScript==

var Engines = ["https://thepiratebay.se/search/{0}/0/7/0",
			   "http://kickass.to/usearch/{0}/?field=seeders&sorder=desc",
			   "https://www.torrentz.com/search?q={0}",
			   "http://bitsnoop.com/search/all/{0}/s/a/1/",
			   "http://www.sumotorrent.sx/en/search/{0}?order=seeders&by=down"];

var hostName = window.location.hostname;

if (hostName == 'release24.pl') {
    var elemList = document.getElementById('mainwindow');
    loopCount = elemList.childElementCount > 3 ? elemList.childElementCount - 3 : 2;

    for (i = 1; i < loopCount; i++) {
        var elem = elemList.children[i];

        if (elem.className == 'wpis') {
            var title_regex = /\"(.*)\"/;
            regex_result = elem.children[0].children[0].innerHTML.match(title_regex)

            if (regex_result != null) {
                var title = regex_result[1];
                var span = createLinkSpan(title, 'margin-left: 50px; font-weight: normal;');

                elem.children[2].children[0].children[0].children[0].children[0].children[1].children[0].children[0].children[0].appendChild(span);
            }
        }
    }
}
else if (hostName == 'www.filmweb.pl') {
    var style = 'margin-left: 50px; font-weight: normal;';
    var elemList = getElementByClass('filmTime');

    if (elemList == null) {
        if (getElementByClass('text-large caption') != null) {
            style = 'margin-left: 50px; font-weight: normal;';
            elemList = getElementByClass('text-large caption');
        }
        else if (getElementByClass('hdr hdr-super') != null) {
            style = 'margin-left: 0px; font-weight: normal;';
            elemList = getElementByClass('hdr hdr-super').parentNode;
        }
    }

    if (elemList != null) {
        var title = getElementByClass('text-large caption');

        if (title == null)
            title = getElementByClass('hdr hdr-super').children[0].children[0];

        var span = createLinkSpan(title.innerHTML, style);

        elemList.appendChild(span);
    }
}

function createLinkSpan(title, style) {
    var span = document.createElement('span');
    span.setAttribute('id', 'Torrenter');
    span.setAttribute('style', style);

    for (var e in Engines) {
        var link = document.createElement('a');
        link.setAttribute('href', format(Engines[e], title));
        link.setAttribute('style', 'position: relative; top: 5px;');

        var url_regex = /(https?:\/\/)(.+\....)/;
        regex_result = Engines[e].match(url_regex);
        link.innerHTML = getFavIconImg(Engines[e].match(url_regex)[2]);

        if (e > 0) {
            var separator = document.createElement('span');
            separator.innerHTML = '&nbsp;|&nbsp;';

            span.appendChild(separator);
        }

        span.appendChild(link);
    }

    return span;
}

function getFavIconImg(url) {
    imgurl = '<img src="http://www.google.com/s2/favicons?domain=' + url + '" width="16px" height="16px">';

    return imgurl;
}

function format(str) {
    for (a = 1; a < arguments.length; a++) {
        argNum = "{" + (a - 1) + "}";

        str = str.replace(argNum, arguments[a]);
    }

    return str;
}

function getElementByClass(matchClass) {
    var elems = document.getElementsByClassName(matchClass);

    if (elems.length > 0) {
        return elems[0];
    }

    return null;
}