// ==UserScript==
// @name        多邻国diy开发
// @description 多邻国做题配合划词翻译显示翻译文本
// @match       https://www.duolingo.com/*
// @require     https://code.jquery.com/jquery-3.4.1.js
// @version 1.3
// @namespace https://greasyfork.org/users/157318
// @downloadURL none
// ==/UserScript==

function isLesson() {
    return /https:\/\/www.duolingo.com\/(lesson|practice|skill.*)/.test(window.location.href);
}

function fy(){
    var mydiv=$("#myDiv");
    if (mydiv.length==1){
    $("#myDiv").remove();
    return none;
    }
    var fanyi=$(".PcKtj");
    var strone="";
    if (fanyi.length==1){//一个一个词拼句子
        for(var i=0;i<fanyi.find("div").length;i++){
            //品句子
            strone=strone+fanyi.find("div").eq(i).text()+" ";
        }
        fanyi.append("<div id='myDiv'>"+strone+"</div>");
        //$("#myDiv").focus();
        window.getSelection().selectAllChildren(document.getElementById("myDiv"));
        $("#__hcfy__").shadowRoot.querySelector(".bp3-button").click();
        console.log(strone);
    }
    var tiankong=$("._3NgMa._2Hg6H,._3Fi4A._2Hg6H");//_3QpTb _2Hg6H
    if (tiankong.length==1){//填空题品句子
        var tiankongstr=tiankong[0].innerText.replaceAll("\n","");
        tiankong.append("<div id='myDiv'>"+tiankongstr+"</div>");
        //$("#myDiv").focus();
        window.getSelection().selectAllChildren(document.getElementById("myDiv"));
        $("#__hcfy__").shadowRoot.querySelector(".bp3-button").click();
        //$("#myDiv").click();
        console.log(tiankongstr);
    }
    tiankong=$("._3QpTb._2Hg6H");//同时阅读,选句子和口语
    if (tiankong.length==1){//阅读并回答
        tiankongstr=tiankong[0].innerText.replaceAll("\n","");
        tiankong.append("<div id='myDiv'>"+tiankongstr+"</div>");
        //$("#myDiv").focus();
        window.getSelection().selectAllChildren(document.getElementById("myDiv"));
        $("#__hcfy__").shadowRoot.querySelector(".bp3-button").click();
        //$("#myDiv").click();
        console.log(tiankongstr);
    }
    //_1KUxv _11rtD口语
    tiankong=$("._1KUxv._11rtD");//口语
    if (tiankong.length==1){//
        tiankongstr=tiankong[0].innerText.replaceAll("\n","");
        tiankong.append("<div id='myDiv'>"+tiankongstr+"</div>");
        //$("#myDiv").focus();
        window.getSelection().selectAllChildren(document.getElementById("myDiv"));
        $("#__hcfy__").shadowRoot.querySelector(".bp3-button").click();
        //$("#myDiv").click();
        console.log(tiankongstr);
    }
    //_1KUxv _11rtD口语
    tiankong=$("._29e-M._39MJv._2Hg6H");//完成对话
    if (tiankong.length==1){
        tiankongstr=tiankong[0].innerText.replaceAll("\n","");
        tiankong.append("<div id='myDiv'>"+tiankongstr+"</div>");
        //$("#myDiv").focus();
        window.getSelection().selectAllChildren(document.getElementById("myDiv"));
        $("#__hcfy__").shadowRoot.querySelector(".bp3-button").click();
        //$("#myDiv").click();
        console.log(tiankongstr);
    }

}
setTimeout(() => {
    $(".nP82K").append("<button id='benty4' style='float:right;'>翻译</button");
    $("#benty4").click(function(){fy();});
}, 5000);

window.addEventListener("keydown", function(e) {
    var key = e.key.toLowerCase();

    if (isLesson()) {


        // matching shortcut
        if (/[a-z]/.test(key)) {
            var hint = $(`span.matching-hint:contains(${key.toUpperCase()})`);
            var parent = hint.parent();
            if (!parent.attr("disabled")) {
                parent.click();
            }
        }
        //console.log(e.key);
        // cancel click
        if (key == ";") {
            $("div.PcKtj button:last").click();
        }
        //duolingo 第五部分翻译意思
        if (key == "f2") {
            fy();
        }
        if (key == "f8") {
            $("._3a8EI._1ZuR6").eq(0).click();


            var isFocus=$("textarea").is(":focus");
            if(true==isFocus){
                console.log('有focus');
                var ev = $.Event('keypress');
                ev.which = 74; // Carriage-return (Enter)
                $('textarea').trigger(ev);
            }else{
                $("textarea").focus();
                console.log('没有focus');
            }/**/
        }
        if (key == "f9") {
            $("._3a8EI._1ZuR6").eq(1).click();
        }
        if (key == "escape") {
            $(".yWRY8._3yAjN").eq(0).click();
        }
        // discussion shortcut
        if (key == "d") {
            $("span:contains(Discuss)").click();
        }

        // report shortcut
        if (key == "r") {
            $("span:contains(Report)").click();
        }

        // keyboard toggle
        if (key == "b" && e.ctrlKey) {
            e.preventDefault();
            $("button[data-test=player-toggle-keyboard]").click();
        }

    }
});

// insert a-z shortcut hints on matching tiles
var observer = new MutationObserver(function(mutations) {
    if (isLesson()){
        var tiles = $("div[data-test=word-bank] button[data-test=challenge-tap-token]");
        if (tiles.length > 0) {
            var alpha = "asdfghjklweruioxcvnm";
            tiles.each(function (i, e) {
                var tile = $(e);
                if (!tile.attr("hint-added")) {
                    var hint = document.createElement("span");
                    hint.className = "_2R_o5 _2S0Zh _2f9B3 matching-hint";
                    hint.innerHTML = alpha.charAt(i).toUpperCase();
                    hint.style.marginRight = "10px";
                    tile.prepend(hint);
                    hint = $(hint);
                    var buttonObserver = new MutationObserver(function(m) {
                        if (tile.hasClass("pmjld")) {
                            hint.removeClass("_2R_o5").addClass("Z7UoT");
                        } else {
                            hint.removeClass("Z7UoT").addClass("_2R_o5");
                        }
                        if (tile.attr("disabled")) {
                            hint.css("color", "#e5e5e5");
                            buttonObserver.disconnect();
                        }
                    });
                    buttonObserver.observe(e, {attributes: true});
                    tile.attr("hint-added", "1");
                }
            });
        }
    }
});
/*
$("body").prepend("<div ><button id='benty4'>翻译</button></div>");
$("#benty4").click(function(){
    alert("ddd");
var e = $.Event("keydown"); //模拟一个键盘事件
e.keyCode = 66;
e.which = 66; //增加设置which
$('textarea')[0].click(); //模拟按键
    $(window).trigger(e);
});
*/



observer.observe(document, {childList: true, subtree: true, attributes: false, characterData: false});