修改自 https://greasyfork.org/zh-CN/scripts/401598 内容：修复bug；每半天自动刷新

steam_free_games.js

// ==UserScript==
// @name         Steam 免费游戏永久入库脚本
// @namespace    https://gist.github.com/Netrvin/bc6397a57ad5d735f8ee3a8e6c350d0c
// @version      0.2.1
// @description  steamdb.info屏蔽周末临时免费 Steam 免费游戏永久入库脚本 
// @author       Boys&Netrvin
// @match        *://steamdb.info/upcoming/free*
// @match        *://store.steampowered.com/account/licenses*
// @icon         https://steamdb.info/static/logos/512px.png
// @note         2020年4月22日 修复部分使用的问题
// @grant        GM_getValue
// @grant        GM_setValue
// @run-at       document-end
// ==/UserScript==
(function () {
    'use strict';
    Array.prototype.notempty = function () {
        let arr = [];
        this.map(function (val, index) {
            if (val !== "" && val != undefined) {
                arr.push(val);
            }
        });
        return arr;
    }
    function load_licenses(res) {
        if (typeof res == "undefined" || res == null || res.replace(/\s*/g, "") == "" || !res) return;
        if (location.hostname !== 'store.steampowered.com') {
            alert('Run this code on theSteamStore!');
            return;
        } else if (typeof jQuery !== 'function') {
            ShowAlertDialog('Fail', 'This page has no jQuery, try homepage.');
            return;
        } else if (document.getElementById('header_notification_area') === null) {
            ShowAlertDialog('Fail', 'You have to be logged in.');
            return;
        }
        let freePackages = res.replace(/\s*/g, "").split(",").notempty();
        let ownedPackages = {};
        jQuery('.account_table a').each(function (i, el) {
            const match = el.href.match(/javascript:RemoveFreeLicense\( ([0-9]+), '/);
            if (match !== null) {
                ownedPackages[+match[1]] = true;
            }
        });
        let loaded = 0,
            packages = 0,
            total = freePackages.length,
            modal = ShowBlockingWaitDialog('努力执行中...', '请耐心等待，如果有错误请无视，请耐心等待脚本加载完毕');
        for (let i = 0; i < total; i++) {
            packages = freePackages[i];
            if (ownedPackages[packages]) {
                loaded++;
                continue;
            }
            jQuery.post('//store.steampowered.com/checkout/addfreelicense', {
                action: 'add_to_cart',
                sessionid: g_sessionID,
                subid: packages
            }).always(function () {
                loaded++;
                modal.Dismiss();
                if (loaded >= total) {
                    GM_setValue("steam_db_free_info_store_ok", true);
                    ShowAlertDialog('任务执行完成', '请刷新网页查看....');
                    // location.reload();
                } else {
                    modal = ShowBlockingWaitDialog('执行中...', '加载至 <b>' + loaded + '</b>/' + total + '.');
                }
            });//always-end
        }//for-end
    }//load_licenses-end
    function flashing_prompt(count, time) {
        let timeout
        function clear() {
            --count
            if (count === 0) {
                clearInterval(timeout)
                timeout = null;
            }
        }
        function exec() {
            $("#dark-mode-toggle .dark-mode-slider").click()
            clear();
        }
        timeout = setInterval(() => {
            exec();
        }, time)
    }//flashing_prompt-end
    let local = window.location.href;
    if (local.indexOf("steamdb.info/upcoming/free") != -1) {
        setTimeout(function(){
            window.location.reload();
        },43200000)
        $("td").each(function () {
            if ($(this).text() == "Weekend") $(this).parent().remove();
        })
        let v = "";
        $(".timeago:even").each(function (index, value, array) {
            if ($(this).text().indexOf("ago") == -1)
                return false;
            else
                v += $(this).parent().attr("data-subid") + ",";
        })
        if (GM_getValue("steam_db_free_info_store_ok") != true) flashing_prompt(10, 500);
        let oldValue = GM_getValue("steam_db_free_info_store")
        if (oldValue === v) return;
        let freePackages = v.replace(/\s*/g, "").split(",").notempty();
        if (freePackages.forEach(function (value, index, array) {
            if (oldValue === "undefined" || oldValue == null) return false;
            if (value === "undefined" || value == null) return false;
            if (oldValue.indexOf(value) === -1) return false;
        })) return;
        GM_setValue("steam_db_free_info_store", v);
        GM_setValue("steam_db_free_info_store_ok", false);
        console.log("set steam_db_free_info_store=" + v);
        console.log("set steam_db_free_info_store_ok=" + false);
        return;
    }
    if (local.indexOf("store.steampowered.com/account/licenses") != -1) {
        setTimeout(function(){
            window.location.reload();
        },43200000)
        let v = GM_getValue("steam_db_free_info_store");
        console.log("get steam_db_free_info_store=" + v);
        setTimeout(function () {
            if (GM_getValue("steam_db_free_info_store_ok") == true) return;
            load_licenses(v);
        }, 1000);
        return;
    }
})();