// ==UserScript==
// @name         WoD Equipment Tips
// @namespace    https://www.wannaexpresso.com/
// @version      0.3
// @description  Display minimum equipment requirements!
// @author       DotIN13
// @include      http://*.world-of-dungeons.org/wod/spiel/hero/items.php*view=gear*
// @include      https://*.wannaexpresso.com/wod/spiel/hero/items.php*view=gear*
// @grant        none
// @downloadURL https://update.greasyfork.icu/scripts/398570/WoD%20Equipment%20Tips.user.js
// @updateURL https://update.greasyfork.icu/scripts/398570/WoD%20Equipment%20Tips.meta.js
// ==/UserScript==

// todo:
// add error notification

(function() {
    'use strict';

    var reqList = [];
    var hasTooltip = [];
    var xhr = [];
    var progress = 1;
    var equipSel;

    // Sort Equipment Requirements //////////////////////////////////////////////

    function sortReq () {
        var sortList = [{item:[],req:"力量至少为0"},{item:[],req:"体质至少为0"},{item:[],req:"智力至少为0"},{item:[],req:"灵巧至少为0"},{item:[],req:"魅力至少为0"},{item:[],req:"敏捷至少为0"},{item:[],req:"感知至少为0"},{item:[],req:"意志至少为0"}];
        for (var i = 0; i < equipSel.length; i++){
            if (reqList[i] != "") {
                for (var j = 0; j < reqList[i].length; j++){
                    var isMatch = false;
                    for (var k = 0; k < sortList.length; k++){
                        if (reqList[i][j].replace(/\d*/g,"") == sortList[k].req.replace(/\d*/g,"")){
                            //console.log(reqList[i][j] + "match" + sortList[k].req);
                            var requestVal = parseInt(reqList[i][j].replace(/(<([^>]+)>)/ig,"").match(/[^0-9]*(\d*)/)[1]);
                            var sortVal = parseInt(sortList[k].req.replace(/(<([^>]+)>)/ig,"").match(/[^0-9]*(\d*)/)[1]);
                            if (requestVal > sortVal) {
                                sortList[k].req = reqList[i][j];
                                sortList[k].item = [equipSel[i].options[equipSel[i].selectedIndex].innerText];
                            } else if (requestVal == sortVal) {
                                sortList[k].item.push(equipSel[i].options[equipSel[i].selectedIndex].innerText);
                            }
                            isMatch = true;
                        }
                    }
                    if (!isMatch) sortList.push({item:[equipSel[i].options[equipSel[i].selectedIndex].innerText], req:reqList[i][j]});
                }
            }
        }
        //console.log("done");
        var outputHTML = "<tr class = 'header'><th>装备</th><th>要求</th></tr>";
        for(var m = 0; m < sortList.length; m++) {
            if(m % 2){
                outputHTML += "<tr class = 'row1'><td>" + sortList[m].item.join("<br>") + "</td><td>" + sortList[m].req + "</td></tr>\n";
            }else{
                outputHTML += "<tr class = 'row0'><td>" + sortList[m].item.join("<br>") + "</td><td>" + sortList[m].req + "</td></tr>\n";
            }
        }
        outputTable.innerHTML = outputHTML;
    }

    // XMLrequest /////////////////////////////////////////////////////////////

    window.XMLrequest = function(URL, i, length){
        xhr[i] = new XMLHttpRequest();
        xhr[i].onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                outputDiv.innerHTML = "正在加载第" + progress +"件物品";
                var reqTitle = $("#details>table>tbody>tr>td:contains('装备要求')",this.responseXML)[0];
                if(reqTitle != undefined){
                    var req = reqTitle.parentElement.lastElementChild.innerHTML.trim();
                    //console.log(req);
                    if (!hasTooltip[i]){
                        wodToolTip(equipSel[i].parentElement,req);
                        hasTooltip[i] = true;
                    }else{
                        wodToolTipContent[equipSel[i].parentElement.id] = req;
                    }
                    reqList[i] = req.replace("<i>无任何需求</i>","").split("<br>");
                }else{
                    reqList[i] = [""];
                }
                progress++;
                if (progress == length + 1) {
                    outputDiv.innerHTML = "加载完成";
                    progress = 1;
                    //console.log(reqList);
                    sortReq();
                }
            }
        };
        xhr[i].open("GET", URL);
        xhr[i].responseType = "document";
        xhr[i].send();
    }

    // Add WoD Tip to Equipments //////////////////////////////////////////////

    window.equipmentTip = function(){
        equipSel = document.querySelectorAll("form table select");
        if (equipSel[0] != undefined) {
            var id, req, i;
            for (i = 0; i < equipSel.length; i++) {
                id = equipSel[i].options[equipSel[i].selectedIndex].value == "0" ? -equipSel[i].firstElementChild.value : equipSel[i].options[equipSel[i].selectedIndex].value;
                var URL = "/wod/spiel/hero/item.php?item_instance_id=" + id;
                equipSel[i].setAttribute("onchange", "document.getElementById('outputDiv').innerHTML = '正在加载第1件物品'; var id = this.value == '0' ? -this.firstElementChild.value : this.value; XMLrequest('/wod/spiel/hero/item.php?item_instance_id=' + id, " + i + ", 1);");
                XMLrequest(URL, i, equipSel.length);
            }
        }else{alert("请先清包！");}
    }

    // Frontend ////////////////////////////////////////////////////////////

    //let calcButton = document.createElement("input");
    //calcButton.id = "reqCalcButton";
    //calcButton.type = "button";
    //calcButton.setAttribute("class","button clickable");
    //calcButton.value = "计算最低装备要求";

    let tipButton = document.createElement("input");
    tipButton.id = "reqTipButton";
    tipButton.type = "button";
    tipButton.setAttribute("class","button clickable");
    tipButton.value = "拉取装备要求";
    tipButton.setAttribute("onclick","equipmentTip();");

    let outputDiv = document.createElement("div");
    outputDiv.id = "outputDiv";

    let outputTable = document.createElement("table");
    outputTable.id = "outputTable";
    outputTable.setAttribute("class","content_table");

    var equipTable = document.querySelector("form table");
    //equipTable.parentNode.insertBefore(calcButton, equipTable.nextElementSibling);
    equipTable.parentNode.insertBefore(outputTable, equipTable.nextElementSibling);
    equipTable.parentNode.insertBefore(outputDiv, equipTable.nextElementSibling);
    equipTable.parentNode.insertBefore(tipButton, equipTable.nextElementSibling);
    var pageBody = document.querySelector("#gadgettable-center-gadgets");
})();