// ==UserScript==
// @name         好友和最近游戏中显示VAC状态
// @namespace    By:Svlik QQ:122474363
// @description  可以检查好友列表和游戏列表中好友的VAC状态。
// @version      1.0
// @include      http*://steamcommunity.com/*/friends/*
// @grant        GM_addStyle
// @grant        GM_xmlhttpRequest
// @downloadURL none
// ==/UserScript==

javascript:(
    function(){
        function getDigit(x,digitIndex){
            return(digitIndex>=x.length)?"0":x.charAt(x.length-digitIndex-1)}
        function prefixZeros(strint,zeroCount){
            var result=strint;
            for(
                var i=0;i<zeroCount;i++){result="0"+result}
            return result}
        function add(x,y){
            var maxLength=Math.max(x.length,y.length);
            var result="";
            var borrow=0;
            var leadingZeros=0;
            for(
                var i=0;i<maxLength;i++){
                var lhs=Number(getDigit(x,i));
                var rhs=Number(getDigit(y,i));
                var digit=lhs+rhs+borrow;borrow=0;
                while(digit>=10){digit-=10;borrow++}
                if(digit===0){leadingZeros++}
                else{result=String(digit)+prefixZeros(result,leadingZeros);leadingZeros=0}}
            if(borrow>0){result=String(borrow)+result}
            return result}
        function getId(friend){
            var steam64identifier="76561197960265728";
            var miniProfileId=friend.attributes.getNamedItem("data-miniprofile").value;
            return add(steam64identifier,miniProfileId)}
        var friends=[].slice.call(document.querySelectorAll("#memberList .member_block, .friendHolder, .friendBlock"));
        var lookup={};friends.forEach(
            function(friend){
                var id=getId(friend);
                if(!lookup[id]){lookup[id]=[]}lookup[id].push(friend)});
        function setVacation(player){
            var friendElements=lookup[player.SteamId];friendElements.forEach(
                function(friend){
                    var inGameText=friend.querySelector(".linkFriend_in-game");
                    var span=document.createElement("span");span.style.fontWeight="bold";span.style.display="block";
                    if(inGameText){inGameText.innerHTML=inGameText.innerHTML.replace(/<br ?\/?>/," - ")}
                    if(player.NumberOfVACBans||player.NumberOfGameBans){
                        var text="";
                        if(player.NumberOfGameBans){text+=player.NumberOfGameBans+" 个 OW 封禁"}
                        if(player.NumberOfVACBans){text+=(text===""?"":", ")+player.NumberOfVACBans+" 个 VAC 封禁"}text+=" "+player.DaysSinceLastBan+" 天以前.";span.style.color="rgb(255, 73, 73)";span.innerHTML=text}
                    else{span.style.color="rgb(43, 203, 64)";span.innerHTML="此人没有被封禁记录."}friend.querySelector(".friendSmallText").appendChild(span)})}
        function onData(xmlHttp){
            if(xmlHttp.readyState===XMLHttpRequest.DONE&&xmlHttp.status===200){
                var data=JSON.parse(xmlHttp.responseText);data.players.forEach(setVacation)}}
        function makeApiCall(ids){
            var xmlHttp=
            new XMLHttpRequest();
            var endpointRoot="https://api.steampowered.com/ISteamUser/GetPlayerBans/v1/?key=12A1D1DE83F9932934EDD6DF2BA00463&steamids=";
            var endpoint=endpointRoot+ids.join(",");xmlHttp.onreadystatechange=
                function(){onData(xmlHttp)};xmlHttp.open("GET",endpoint,true);xmlHttp.send()}
        var ids=Object.keys(lookup);
        while(ids.length>0){
            var batch=ids.splice(0,100);makeApiCall(batch)}})();