// ==UserScript==
// @name         XMwiki专辑曲目列表生成
// @version      1.6.2
// @description  几个常用音乐平台专辑曲目列表生成 Grab song list information from some websites
// @author       XMAnon
// @icon         https://s1.ax1x.com/2020/07/15/UabtVe.jpg
// @match        *://www.amazon.com/*
// @match        *://www.amazon.de/*
// @match        *://www.amazon.fr/*
// @match        *://www.amazon.it/*
// @match        *://www.amazon.es/*
// @match        *://music.apple.com/*
// @match        *://open.spotify.com/*
// @match        *://www.deezer.com/*
// the script is mostly inspired by Jeffrey.Deng(https://greasyfork.org/users/129338)复制spotify歌曲名脚本
// Grabbing Info from other sites is almost similar.
// 音乐平台抓取歌曲列表，并生成符合XM格式的歌曲列表（页面2）
// Supported:
//           Spotify Album,
//           Amazon Free Streaming and MP3 Site (tested on US/DE, other Countries should also work) may not working properly after amazon website update
//           Apple Music
//           Deezer
// To be done:
//           Multiple CD case, Bandcamp, MusicBrainz
//
// @namespace https://greasyfork.org/users/666548
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    // Your code here...
    function copyToClipboard(text) {
        if (window.clipboardData && window.clipboardData.setData) {
            // IE specific code path to prevent textarea being shown while dialog is visible.
            return clipboardData.setData("Text", text);

        } else if (document.queryCommandSupported && document.queryCommandSupported("copy")) {
            var textarea = document.createElement("textarea");
            textarea.textContent = text;
            textarea.style.position = "fixed";// Prevent scrolling to bottom of page in MS Edge.
            document.body.appendChild(textarea);
            textarea.select();
            try {
                return document.execCommand("copy");// Security exception may be thrown by some browsers.
            } catch (ex) {
                console.warn("Copy to clipboard failed.", ex);
                return false;
            } finally {
                document.body.removeChild(textarea);
            }
        }
    }
    var song = function(_title, _artist) {
        this.title = _title;
        this.artist = _artist.replace(/ & | feat. |, /gm,';');
    };

    function checkSrc(currentUrl){
        var getSpotify = function(){};
        var getAmazon = function(){};
        var getApple = function(){};
        var getDeezer = function(){};
        //var getDeezer = function(){};
        //***************************************** Spotify *********************************************************************
        getSpotify = function() {
            var nodes = document.querySelector('#main .tracklist-container .tracklist').childNodes;//querySelectorAll("div > li > div.tracklist-col.name > div > div");
            if (!nodes) {
                console.warn("Songs nodes not found!!");
                return;
            }
            var playList = [];
            var len = nodes.length;
            var charList = '';
            for (var i = 0; i < len; i += 1) {
                var one = new song(nodes[i].querySelector(".tracklist-name").innerText, nodes[i].querySelector(".second-line .ellipsis-one-line").innerText);
                playList.push(one);
                charList = charList + one.title + '【歌手】' + one.artist + '\n';
            }
            copyToClipboard(charList);
            console.log(charList);
        }
        //***************************************** Amazon *********************************************************************
        getAmazon = function(){//Amazon新的流媒体页面没有曲目艺人信息了所以就只抓取了曲目列表 2020.08
            //var nodes = document.querySelector("#dmusic_tracklist_content > tbody").getElementsByClassName('a-text-left a-align-center darkenOnHover');//tested on 'amazon.de' unlimited stream page, but now without artists name
            var nodes = document.querySelector("#dmusic_tracklist_content > tbody").childNodes;//tested on 'amazon.de' unlimited stream page, but now without artists name
            //var headerNode = document.getElementById('dmusic_tracklist_header_box');
            var len = nodes.length;
            if (!nodes) {
                console.warn("nodes not found");
                return;}
            //         else if (len === 0){
            //             nodes = [headerNode.nextSibling.nextSibling]; //Special Case when it's EP
            //             len = 1;
            //        }
            var playList = [];
            var albumArtist = document.getElementById("ProductInfoArtistLink").innerText;
            var charList = '';
            for (var i = 0; i < len; i += 2) {
                //var rawList = (nodes[i].innerText.split('\t'));
                var title = (nodes[i].querySelector(".TitleLink").innerText);
                //rawList = rawList.filter(function(e){return e.replace(/\t/gm,"")});
                //var one = new song(rawList[1], rawList[2].replace(/ & /gm,';').replace(' feat. ',';').replace(/, /gm,';'));
                //var one = new song(rawList[1]);
                var one = new song(title,'');
                //             switch(0){
                //                 case(one.artist.indexOf('\t')):
                //                     one.artist = albumArtist;
                //                     break;
                //                 case(one.artist.indexOf('de ')):
                //                 case(one.artist.indexOf('di ')):
                //                 case(one.artist.indexOf('by ')):
                //                     one.artist = one.artist.substring(3);
                //                     break;
                //                 case(one.artist.indexOf('von ')):
                //                     one.artist = one.artist.substring(4);
                //                     break;
                //             }
                //console.log(rawList);
                //console.log(one);
                playList.push(one);
                //charList = charList + one.title + '【歌手】'+ one.artist + '\n';
                charList = charList + one.title + '\n';
            }
            copyToClipboard(charList);
            console.log(charList);
        }
        //***************************************** Apple *********************************************************************
        getApple = function() {
            var nodes = document.querySelector('.product-page .header-and-songs-list .songs-list').querySelectorAll(".song");
            if (!nodes) {
                console.warn("Songs nodes not found!!");
                return;
            }
            var albumArtist = document.querySelector(".product-page .product-creator").innerText.replace(/ & | feat. /gm,';');
            var playList = [];
            var len = nodes.length;
            var charList = '';
            var artist = '';
            for (var i = 0; i < len; i += 1) {
                var title = nodes[i].querySelector(".song-name-wrapper .song-name").innerText;
                if (!nodes[i].querySelector(".song-name-wrapper .by-line")){
                    artist = albumArtist;
                }
                else{
                    artist = nodes[i].querySelector(".song-name-wrapper .by-line").innerText}
                var one = new song(title, artist);
                playList.push(one);
                charList = charList + one.title + '【歌手】' + one.artist + '\n';
            }
            copyToClipboard(charList);
            console.log(charList);
        }
        //***************************************** Deezer *********************************************************************
        getDeezer = function() {
            var nodes = document.querySelector('.page-content .container .datagrid-container .datagrid').querySelectorAll(".song");
            if (!nodes) {
                console.warn("Songs nodes not found!!");
                return;
            }
            var albumArtist = document.querySelector('.page-content .container .heading-link').innerText.replace(/ & | feat. /gm,';');
            var playList = [];
            var len = nodes.length;//曲目数量
            var lenLabeled = document.querySelector('.page-content .container .datagrid-container .datagrid').querySelectorAll(".song .datagrid-label-artist").length
            var charList = '';
            var title = '';
            var artist = '';
            for (var i = 0; i < len; i += 1) {
                title = nodes[i].querySelector(".cell-title .title").innerText;
                if (!nodes[i].querySelector(".datagrid-label-artist")){//没标艺人，即专辑艺人
                    artist = albumArtist;}
                else{//标了艺人，feat需加上专辑艺人
                    if(len > lenLabeled){
                        var coartist = nodes[i].querySelector(".datagrid-label-artist").innerText;
                        artist = albumArtist + ';' + coartist;
                    }
                    else{
                        artist = nodes[i].querySelector(".datagrid-label-artist").innerText;
                    }
                }
                var one = new song(title, artist);
                playList.push(one);
                charList = charList + one.title + '【歌手】' + one.artist + '\n';
            }
            copyToClipboard(charList);
            console.log(charList);
        }
        //var getBandCamp = function(){}
        //var getMusicBrain = function(){}
        //         //***************************************** Discogs *********************************************************************
        //     var getDiscogs = function(){//Discogs格式太乱了，情况太多了,写好了三种的，不好用先注释掉了。。。。
        //         var nodes = document.querySelector("#tracklist > div > table > tbody").querySelectorAll("tr");//[0].innerText;
        //         var len = nodes.length;
        //         if (!nodes) {
        //             console.warn("nodes not found");
        //             return;}
        //         var playList = [];
        //         var albumArtist = document.getElementById("profile_title").innerText.split(' ‎– ')[0].replace(/ & | feat. |, | And /gm,';').replace(/\*/gm,'');
        //         var song = function(_title,_artist) {
        //             this.title = _title;
        //             this.artist = _artist;
        //         };
        //         var charList = '';
        //         for (var i = 0; i < len; i += 1) {
        //             var rawList = (nodes[i].innerText.replace('\n–\n','').split('\t'));
        //             rawList = rawList.filter(function(e){return e.replace(/\n/gm,'')});
        //             var lenElement = rawList.length;
        //             var one;
        //             switch(lenElement){
        //                 case(4):
        //                     one = new song(rawList[2], rawList[1].replace(/ & | feat. |, | And /gm,';').replace(/\*/gm,''));
        //                     break;
        //                 case(3):
        //                 case(2):
        //                     one = new song(rawList[lenElement - 2], albumArtist);
        //                     break;
        //             }
        //             ;
        //             console.log(rawList);
        //             console.log(one);
        //             playList.push(one);
        //             charList = charList + one.title + '【歌手】'+ one.artist + '\n';
        //         }
        //         copyToClipboard(charList);
        //     }
        //     unsafeWindow.getDiscogs = getDiscogs;
        //*********************************************************************************************************************
        switch(true){
            case (currentUrl.indexOf('open.spotify.com') > -1):
                getSpotify();
                break;
            case (currentUrl.indexOf('www.amazon') > -1):
                getAmazon();
                break;
            case (currentUrl.indexOf('music.apple.com') > -1):
                getApple();
                break;
            case (currentUrl.indexOf('www.deezer.com') > -1):
                getDeezer();
                break;
                //case (currentUrl.indexOf('bandcamp') > -1):
                //             case (currentUrl.indexOf('discogs.com') > -1):
                //                 newBtn.onclick = getDiscogs;
                //                 newBtn.style.backgroundColor = 'white';
                //                 var title_Discogs = document.getElementById("profile_title"); //Button near the title
                //                 title_Discogs.appendChild(newBtn);
                //break;
            default:
                console.warn('Host not matching');
        }
    }
    //**************打印下键盘事件的event对象**********
    //     document.onkeydown = function (oEvent) {
    //     console.log(oEvent);}
    // ************************************************
    document.onkeydown = function(oEvent) {//快捷键Shift + C 触发命令
        oEvent = oEvent || window.oEvent;
        //获取键盘的keyCode值
        var nKeyCode = oEvent.keyCode // || oEvent.which || oEvent.charCode;
        //获取shift 键对应的事件属性
        var bShiftKeyCode = oEvent.shiftKey //|| oEvent.metaKey;
        if(nKeyCode == 67 && bShiftKeyCode) {//快捷键 shift + c :  shift(shiftKey) c(keyCode = 67; which = 67; charCode = 0 ) x(keyCode = 88;which = 88; charCode = 0 )
            //doSomeThing...
            //alert('you punched shift + c');
            var currentUrl = window.location.href;
            checkSrc(currentUrl);//check source and get song list
        }
    }
})();