Linkomanija.net list modifications UserScript

LM_list_modifications.user.js

// ==UserScript==
// @name         Linkomanija.net list modifications
// @description  Show poster if present and apply some styles
// @namespace    http://karmalakas.lt/
// @version      1.0.1
// @author       Karmalakas
// @updateURL    https://gist.github.com/Karmalakas/e2ea12e3b3f1b62cec95d48e35f25705/raw/LM_list_modifications.user.js
// @downloadURL  https://gist.github.com/Karmalakas/e2ea12e3b3f1b62cec95d48e35f25705/raw/LM_list_modifications.user.js
// @supportURL   https://www.linkomanija.net/forums.php?action=viewtopic&topicid=85185
// @include      https://www.linkomanija.net/browse.php*
// @require      https://code.jquery.com/jquery-2.1.4.min.js
// @grant        GM_addStyle
// ==/UserScript==

(function($) {
    'use strict';

    var isLight = function() {
        var hex_digits = new Array('0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f');

        //Function to convert rgb color to hex format
        function rgb2hex(rgb) {
            rgb = rgb.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);

            return '#' + hex(rgb[1]) + hex(rgb[2]) + hex(rgb[3]);
        }

        function hex(x) {
            return isNaN(x) ? '00' : hex_digits[(x - x % 16) / 16] + hex_digits[x % 16];
        }

        return rgb2hex($('body').css('background-color')) == '#fbfcfe';
    };

    GM_addStyle('.pos-rel{position:relative}');
    GM_addStyle('.poster_holder{position: relative}.poster_holder a img{width:44px}.poster_holder span img{width:300px}.poster{position:absolute;bottom:-100px;right:-310px;display:none}');
    GM_addStyle('.new_torrent{position:absolute;top:0;bottom:0;left:-3px;width:3px;background-color:red}');

    if (isLight()) {
        GM_addStyle('.free_leech{background-color:#e7ffe7}');
        GM_addStyle('.huge_size{background-color:#ffd7d3}');
    } else {
        GM_addStyle('.free_leech{background-color:#254025}');
        GM_addStyle('.huge_size{background-color:#711b1b}');
    }

    var unhumanize = function(text) {
        var powers = {'k': 1, 'm': 2, 'g': 3, 't': 4},
            regex = /(\d+(?:\.\d+)?)\s?(k|m|g|t)?b?/i,
            res = regex.exec(text);

        return res[1] * Math.pow(1024, powers[res[2].toLowerCase()]);
    };

    var size_limit = 20, // in GB
        list = $('#content > form > table:last > tbody');

    $.each(list.find('tr'), function(idx) {
        var row = $(this),
            main_cell = row.find('td:nth-child(2)');

        var rearrangeCounterCells = function(merge_links = true) {
            var seeders,
                last_cell = row.find('td:last'),
                second_cell = last_cell.prev(),
                first_cell = second_cell.prev();

            if (merge_links) {
                var html = $(second_cell.html()),
                    last_href = $(last_cell.html()).find('a');

                html.find('a').append('/' + (last_href.length ? last_href.html() : '0'));
                seeders = html.html();
            } else {
                seeders = second_cell.html().trim() + '/' + last_cell.html().trim();
            }

            first_cell.html(seeders + ' (' + first_cell.html().trim() + ')');
            second_cell.remove();
            last_cell.remove();
        };

        if (main_cell.hasClass('colhead')) {
            rearrangeCounterCells(false);

            return;
        }

        rearrangeCounterCells();

        var genres = main_cell.find('> span').text(),
            link = main_cell.find('> a:first'),
            title = link.find('> b').text(),
            cat_icon_cell = row.find('td:first')
        ;

        // Poster stuff
        link = link.attr('href');
        $.get(link).done(function (data) {
            var regex = new RegExp('class="descr_text.+src="(.+?[^"])".+', "gim"),
                poster = regex.exec(data);

            if (poster && poster[1]) {
                var image = $('<a href="' + link + '" target="_blank"><img src="' + poster[1] + '" alt="" /></a><span class="poster"><img src="' + poster[1] + '" alt="" /></span>');

                cat_icon_cell.addClass('poster_holder').find('> a').replaceWith(image);

                var poster_big = cat_icon_cell.find('span');
                cat_icon_cell.find('a').on('mouseenter mouseleave', function() {
                    poster_big.toggle();
                });
            }
        });

        // Free leech
        var free_leech_flag = main_cell.find('img[src="//static.linkomanija.net/images/flag_green.gif"]');
        if (free_leech_flag.length > 0) {
            main_cell.addClass('free_leech');
            free_leech_flag.remove();
        }

        // Oversized
        var size_cell = row.find('td:nth-child(6)');
        if (unhumanize(size_cell.text().replace('<br>', '')) > 1024 * 1024 * 1024 * size_limit) {
            size_cell.addClass('huge_size');
        }

        // New torrent
        var new_torrent = main_cell.find('> b');
        if (new_torrent. length) {
            new_torrent.remove();
            cat_icon_cell.addClass('pos-rel').append('<div class="new_torrent"></div>');
        }
    });
})(jQuery);

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