// ==UserScript==
// @name         wanbentxt
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  https://m.wanbentxt.com/ 的小说下载
// @author       You
// @match        https://m.wanbentxt.com/*
// @require      http://libs.baidu.com/jquery/2.0.0/jquery.min.js
// @require      https://cdn.jsdelivr.net/npm/file-saver@1.3.8/FileSaver.min.js
// @grant        GM_xmlhttpRequest
// @downloadURL none
// ==/UserScript==

(function () {
    'use strict';


    var DivInited = false;
    var WCContent, WCWords, WCQuit, WCSave, WCContinue;
    var pagenum = 0, chapternum = 0;
    var title, Id, authior, desc;
    var listpage = [];
    var oldurl = 'null';

    function initDiv() {
        console.log("initDiv");
        if (DivInited) return;
        DivInited = true;
        var content = document.createElement("div");
        document.body.appendChild(content);
        content.outerHTML = `
      <div id="CWDownContent" >
        <div style="width:360px;height:100px;position:fixed;left:50%;top:50%;margin-top:-50px;margin-left:-180px;z-index:100000;background-color:#ffffff;border:1px solid #afb3b6;opacity:0.95;filter:alpha(opacity=95);box-shadow:5px 5px 20px 0px#000;">
          <div id="CWDownWords" style="font-size:12px;position:absolute;width:290px;height:90px;padding: 8px;border-radius: 10px;float: left;">
          </div>
          <div style="float: right;">
            <div id="CWDownSave" style="width:43px;height:26px;cursor: pointer;background-color:#3169da;margin: 5px 5px 3px 3px;">
              <span style="line-height:25px;display:block;color:#FFF;text-align:center;font-size:14px;">保存</span>
            </div>
            <div id="CWDownQuit" style="width:43px;height:26px;cursor: pointer;background-color:#3169da;margin: 3px;">
              <span style="line-height:25px;display:block;color:#FFF;text-align:center;font-size:14px;">取消</span>
            </div>
            <div id="CWCContinue" style="width:43px;height:26px;cursor: pointer;background-color:#3169da;margin: 3px;">
            <span style="line-height:25px;display:block;color:#FFF;text-align:center;font-size:14px;">繼續</span>
          </div>
          </div>
        </div>
      </div>
      `;

        WCContent = document.querySelector("#CWDownContent");
        WCWords = document.querySelector("#CWDownWords");
        WCQuit = document.querySelector("#CWDownQuit");
        WCSave = document.querySelector("#CWDownSave");
        WCContinue = document.querySelector("#CWCContinue");
        WCContinue.style.display = "none";

        WCQuit.onclick = function () {
            DivInited = false;
            WCContent.style.display = "none";
            WCWords.innerHTML = '';
            WCContent.parentNode.removeChild(WCContent);
        };
        WCContinue.onclick = function () {
        };
        WCSave.onclick = function () {
            SaveText();
        };
    }

    function ShowWords(value) {
        WCWords.innerHTML = (title ? title + '<br>' : '') + value;
    }

    function inits() {
        var content = document.createElement("div");
        document.body.appendChild(content);
        content.outerHTML = `
        <div id="initsContent">
        <div style="width:40px;height:25px;position:fixed;left:10PX;top:10PX;z-index:100000;/*! background-color:#ffffff; *//*! border:1px solid #afb3b6; *//*! opacity:0.95; */filter:alpha(opacity=95);">
          <div id="initsSave" style="/*! width:43px; *//*! height:26px; */cursor: pointer;background-color:#3169da;/*! margin: 2px 5px 3px 10px; */">
            <span style="line-height:25px;display:block;color:#FFF;text-align:center;font-size: 10px;">下载</span>
          </div>
        </div>
        </div>
`;

        var initsSave = document.querySelector("#initsSave");

        initsSave.onclick = function () {
            initDiv();
            run();
        }
    }

    function getElementRootText(element) {
        let ret = "";
        for (const i of element.childNodes) {
            if (i.nodeType === i.TEXT_NODE || i.nodeName == 'T') {
                ret += i.nodeValue + '\r\n';
            }
        }
        return ret.replace(/^\s+|\s+$/g, "");
    }

    async function gethtml(url) {
        return new Promise((resolve, reject) => {
            GM_xmlhttpRequest(
                {
                    url: url,
                    method: "GET",
                    onload: function (response) {
                        resolve(response.responseText);
                    }
                });
        });
    }


    async function getpage(pageurl) {
        if (!pageurl) return;
        pagenum++;
        let pagestr = await gethtml(pageurl);
        let pagedoc = $('<html></html>');
        pagedoc.html(pagestr);
        var lista = pagedoc.find('.chapterList > ul>a');
        console.log(lista);

        for (let i = 0; i < lista.length; i++) {
            chapternum++;
            ShowWords(`正在下载<br>第${pagenum}页<br>第${chapternum}章节`)
            let url = lista[i].href;
            console.log(url);
            let str = await gethtml(url);
            let doc = $('<html></html>');
            doc.html(str);
            let title = doc.find('.readerTop h3').text();
            let content = doc.find('.raderCon');
            //console.log(content);
            /*             let listtxt = [];
                        for (const i of doc[0].querySelectorAll(".raderCon")) {
                            let line = getElementRootText(i);
                            console.log(line);
                            listtxt.push(line);
                        }
                        listpage.push({ title: title, content: listtxt.join('\r\n') }) */

            let value = content.html();
            //console.log(value);

            value = value.replace(/<br>/g, "\r\n");
            value = value.replace(/一秒记住.*?找不到书请留言！/, '');
            value = value.replace(/一秒记住.*?m.wanbentxt.com/, '');
            value = value.replace(/支持.*?找不到书请留言！/, '');
            value = value.replace(/支持.*?你们的宣传支持就是最的动力/, '');
            value = value.replace(/支持.*?你们的支持就是大大的动力！/, '');
            value = value.replace(/支持.*?分享给你们的好友！/, '');
            value = value.replace(/【完本神站】.*?永不丢失！/, '');
            value = value.replace('更多绝版完结好文搜索', '');
            value = value.replace('书荒就搜', '');


            value = value.replace(/&amp;/g, "&");
            value = value.replace(/&lt;/g, "<");
            value = value.replace(/&gt;/g, ">");
            value = value.replace(/&nbsp;/g, " ");
            value = value.replace(/&quot/g, "'");

            value = value.replace(/<[^<>]+?>/g, '');

            value = value.replace(/完[\s\S]{0,8}本[\s\S]{0,8}神[\s\S]{0,8}站/, '');

            //console.log(value);

            listpage.push({ title: title, content: value });

        }

        var next = pagedoc.find('.page > a:nth-child(3)');
        if (next.length > 0) {
            let nexturl = 'https://m.wanbentxt.com' + next.attr('href');
            if (oldurl != nexturl) {
                oldurl = nexturl;
                console.log(nexturl);
                await getpage(nexturl);
            } else {
                console.log('end');
                console.log(listpage);
            }
        }

    }

    async function gettitle() {
        var m = /m\.wanbentxt\.com\/(\w+)/.exec(location.href);
        console.log(m);
        if (m) {
            Id = m[1];
            let Idurl = 'https://m.wanbentxt.com/' + Id + '/';
            let Idstr = await gethtml(Idurl);
            let Iddoc = $('<html></html>');
            Iddoc.html(Idstr);
            desc = Iddoc.find('.bookInfo').text();
            authior = Iddoc.find('.bookPhrMid p:nth-child(1)').text();
            title = Iddoc.find('.bookPhr h2').text();
            return 'https://m.wanbentxt.com/' + Id + '/all.html'
        }
        return null;
    }


    async function run() {

        let reurl = await gettitle();

        await getpage(reurl);
        console.log('end');
        SaveText();
    }

    function SaveText() {
        if (!listpage || listpage.length == 0) return;

        let save = [];
        $.each(listpage, function (index, value) {
            save.push(value.title + '\r\n' + value.content + '\r\n\r\n');
        });
        ShowWords(`已下载完成<br>共${pagenum}页<br>共${chapternum}章节`)
        var blob = new Blob([title, "\r\n", authior, "\r\n", desc, "\r\n\r\n", save.join('\r\n')], { type: "text/plain;charset=utf-8" });
        saveAs(blob, title + '.txt');
    }

    inits();



})();