// ==UserScript==
// @name         酷狗在线听/下载
// @namespace    http://tampermonkey.net/
// @version      1.5
// @icon         https://i0.hdslb.com/bfs/album/0d58ba3462659867aa46633d4a4791e93160ffb5.jpg
// @description  无需登录在线听你想听的音乐
// @author       今天是充满希望的一天
// @match        *://www.kugou.com/mixsong/*
// @match        *://www.kugou.com/song/*
// @grant        GM_xmlhttpRequest
// @grant        GM_download
// @grant        GM_addStyle
// @require      https://cdn.bootcdn.net/ajax/libs/jquery/3.6.0/jquery.min.js
// @require      https://cdn.bootcdn.net/ajax/libs/nprogress/0.2.0/nprogress.min.js
// @connect      music.api.goodluckweb.top
// @downloadURL none
// ==/UserScript==
console.log("==================================插件启动成功==================================")
let mp3_Hash = "";
let sq_hash = "";
let g_hash = "";
let albumid = "";
let mp3_Url = "";
let mp3_Name = "";
let url = "";
let download_url = "";
let download_hash = "";

// 添加按钮选择音质
var down_load_div = document.getElementsByClassName("btnArea2 clearfix")[0];
down_load_div.innerHTML = "";
// 超高音质
var button_ws = document.createElement("button");
button_ws.id = "down_load_ws";
button_ws.textContent = "下载超高音质(需设置flac为白名单)";
button_ws.style.width = "230px";
button_ws.style.height = "50px";
button_ws.style.color = "#fff";
button_ws.style.cursor = "pointer";
button_ws.style.background = "#000";
down_load_div.appendChild(button_ws);
// 高音质
var button_g = document.createElement("button");
button_g.id = "button_g";
button_g.textContent = "下载高音质";
button_g.style.width = "230px";
button_g.style.height = "50px";
button_g.style.color = "#fff";
button_g.style.cursor = "pointer";
button_g.style.background = "#000";
button_g.style.margin = "3px 0px";
down_load_div.appendChild(button_g);
// 普通音质
var button_mp3 = document.createElement("button");
button_mp3.id = "button_mp3";
button_mp3.textContent = "下载普通音质";
button_mp3.style.width = "230px";
button_mp3.style.height = "50px";
button_mp3.style.color = "#fff";
button_mp3.style.cursor = "pointer";
button_mp3.style.background = "#000";
down_load_div.appendChild(button_mp3);

// 监听audio开始播放事件(事件在视频/音频（audio/video）开始播放时触发。)
document.getElementById('myAudio').addEventListener("play", function () {
    // 判断是否需要修改src属性
    if (document.getElementById('myAudio').getAttribute("data-hash") != mp3_Hash) {
        getMp3Detail();
    }
})

// 点击下载按钮 超高音质
button_ws.onclick = function () {
    if (download_url == mp3_Url) {
        alert(mp3_Name + " 已在下载中！")
    } else {
        downloadBySrc(mp3_Url);
    }
};
// 点击下载按钮 高音质
button_g.onclick = function () {
    if (g_hash == download_hash) {
        alert(mp3_Name + " 已在下载中！");
    } else {
        download_hash = g_hash;
        getMp3UrlSrc();
    }
};
// 点击下载按钮 普通音质
button_mp3.onclick = function () {
    if (mp3_Hash == download_hash) {
        alert(mp3_Name + " 已在下载中！");
    } else {
        download_hash = mp3_Hash;
        getMp3UrlSrc();
    }
};

// 点击下载按钮 超高音质
document.getElementById('pb_download').onclick = function () {
    if (download_url == mp3_Url) {
        alert(mp3_Name + " 已在下载中！")
    } else {
        downloadBySrc(mp3_Url);
        setTimeout(function () {
            document.getElementsByClassName('ui-popup ui-popup-show ui-popup-focus')[0].style.display = "none"
        }, 50)
    }
};

// 获取高音质或者普通音质的MP3地址并且下载
function getMp3UrlSrc() {
    url = "https://music.api.goodluckweb.top/url/byhash?hash=" + download_hash + "&albumid=" + albumid;
    GM_xmlhttpRequest({
        method: "get",
        url: url,
        onload: function (r) {
            let jsonTxt = r.responseText;
            let json = JSON.parse(jsonTxt);
            downloadBySrc(json.data.play_url);
        }
    })
}

// 点击下载 by url
function downloadBySrc(download_url_quality) {
    download_url = download_url_quality;
    let loaded = 0.0;
    NProgress.set(0.0);      // 与.start（）
    GM_download({
        url: download_url,
        name: mp3_Name + download_url.substr(download_url.lastIndexOf(".")), //不填则自动获取文件名
        saveAs: true, //布尔值，显示"保存为"对话框
        onerror: function (error) {
            //如果下载最终出现错误，则要执行的回调
            console.log(error)
            console.log(mp3_Name + "  下载报错，请反馈！");
        },
        onprogress: (pro) => {
            //如果此下载取得了一些进展，则要执行的回调
            // console.log(pro.loaded) //文件加载量
            // console.log(pro.totalSize) //文件总大小
            let size = (pro.loaded / pro.totalSize).toFixed(1);
            if (loaded != size) {
                loaded = size;
                NProgress.inc(0.1);
            }
        },
        ontimeout: () => {
            //如果此下载由于超时而失败，则要执行的回调
            console.log(mp3_Name + "下载超时，请反馈！");
        },
        onload: () => {
            //如果此下载完成，则要执行的回调
            console.log(mp3_Name + "   下载完成！");
            NProgress.done();
        }
    })
}

// 播放无损音质
function getSqMp3Play(url) {
    // get请求获取无损音质的信息
    GM_xmlhttpRequest({
        method: "get",
        url: url,
        onload: function (r) {
            let jsonTxt = r.responseText;
            let json = JSON.parse(jsonTxt);
            mp3_Url = json.data.play_url;
            mp3_Name = json.data.audio_name;
            document.getElementById('myAudio').src = mp3_Url;
            //document.getElementById('openKugou').href = mp3_Url;
            if (document.getElementById('myAudio').paused) {
                document.getElementById('myAudio').play();
            }
            console.log(mp3_Name + mp3_Url.substr(mp3_Url.lastIndexOf(".")) + "   加载完成");
        }
    })
}

// js修改audio的src属性，即播放链接
function getMp3Detail() {
    mp3_Hash = document.getElementById('myAudio').getAttribute("data-hash");
    let play_hash = mp3_Hash;
    let searchQualityUrl = 'http://m.kugou.com/app/i/getSongInfo.php?cmd=playInfo&hash=' + play_hash;
    // 查询音质
    GM_xmlhttpRequest({
        method: "get",
        url: searchQualityUrl,
        onload: function (r) {
            let jsonTxt = r.responseText;
            let json = JSON.parse(jsonTxt);
            albumid = json.albumid.toString();
            g_hash = json.extra['320hash'];
            if (g_hash == '') {
                button_g.style.display = 'none';
            } else {
                button_g.style.display = 'block';
                play_hash = g_hash;
            }
            sq_hash = json.extra.sqhash;
            if (sq_hash == '') {
                button_ws.style.display = 'none';
            } else {
                button_ws.style.display = 'block';
                play_hash = sq_hash;
            }
            // 访问第三方解析无损接口
            url = "https://music.api.goodluckweb.top/url/byhash?hash=" + play_hash + "&albumid=" + albumid;
            getSqMp3Play(url);
        }
    })
}
//========================================= nprogress.min.css
GM_addStyle(`
#nprogress{pointer-events:none}#nprogress .bar{background:#f90;position:fixed;z-index:1031;top:0;left:0;width:100%;height:5px}#nprogress .peg{display:block;position:absolute;right:0;width:100px;height:100%;box-shadow:0 0 10px #f90,0 0 5px #f90;opacity:1;-webkit-transform:rotate(3deg) translate(0,-4px);-ms-transform:rotate(3deg) translate(0,-4px);transform:rotate(3deg) translate(0,-4px)}#nprogress .spinner{display:block;position:fixed;z-index:1031;top:15px;right:15px}#nprogress .spinner-icon{width:18px;height:18px;box-sizing:border-box;border:2px solid transparent;border-top-color:#f90;border-left-color:#f90;border-radius:50%;-webkit-animation:nprogress-spinner 400ms linear infinite;animation:nprogress-spinner 400ms linear infinite}.nprogress-custom-parent{overflow:hidden;position:relative}.nprogress-custom-parent #nprogress .bar,.nprogress-custom-parent #nprogress .spinner{position:absolute}@-webkit-keyframes nprogress-spinner{0%{-webkit-transform:rotate(0deg)}100%{-webkit-transform:rotate(360deg)}}@keyframes nprogress-spinner{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}
`);