// ==UserScript==
// @name         文献互助小帮手：①从图书馆参考咨询联盟(ucdrs)或读秀(duxiu)获取ssid/dxid ②从中美百万(cadal)获取ssno ③提供ucdrs、duxiu、cadal到豆瓣图书的链接
// @namespace    ucdrs.superlib.net
// @version      1.4.0
// @author       Theron
// @match        *://book.ucdrs.superlib.net/views/specific/*
// @match        *://book.ucdrs.superlib.net/search*
// @match        *://search.douban.com/book/subject_search*
// @match        *://book.douban.com/subject_search*
// @match        *://book.douban.com/tag/*
// @match        *://book.douban.com/subject/*
// @match        *://book.douban.com/series/*
// @match        *://book.douban.com/works/*
// @match        *://book.douban.com/author/*/books*
// @match        *://book.douban.com/people/*/wish*
// @match        *://book.douban.com/people/*/do*
// @match        *://book.douban.com/people/*/collect*
// @match        *://www.douban.com/doulist/*
// @match        *://book.douban.com/cart*
// @match        *://cadal.edu.cn/cadalinfo/search*
// @match        *://cadal.edu.cn/cardpage/bookCardPage?ssno=*
// @include      */search*
// @include      */bookDetail.jsp*
// @require      https://libs.baidu.com/jquery/2.0.0/jquery.min.js
// @description  显示图书馆参考咨询联盟(ucdrs)或读秀及其镜像站(duxiu)上文献的ssid或dxid（ssid不存在时），用于群组找书、文献互助、图书互助等场景；显示大学数字图书馆国际合作计划(cadal)的书号-ssno，用于查询下载中美百万书册；另外在搜索、详情页等处添加ucdrs、duxiu、cadal和豆瓣的双向导航链接。To搜索[红太狼的平底锅]的朋友：提供红太狼的平底锅的部分功能，如显示ssid，下载请自行找百度网盘群组；显示dxid和双向链接为平底锅没有的新加功能。
// @grant        none
// @license      Copyright Theron
// @downloadURL none
// ==/UserScript==

(function () {
    'use strict';
    function slim(s) {
        return s.replaceAll(/  +/g, "").trim();
    }
    function showbid(bookid, idtype) {
        return `<p style="text-align: center; margin-top: 5px; margin-bottom: 5px; clear:both;"><span style="color: red; font-size: 13px; padding-right: 3px;">${idtype}</span><span style="color: blue; font-size: 13px; font-weight: bold;">${bookid}</span></p>`;
    }

    var pageurl = window.location.href;
    if (pageurl.includes("search.douban.com/book/subject_search") || pageurl.includes("book.douban.com/subject_search")) {
        $("div.item-root > div.detail > div.title").each((i, el) => {
            let bookname = slim($(el).text());
            $(el).find("a").after(' | <a style="font-size: 80%; color: orange;" href="http://book.ucdrs.superlib.net/search?sw=' + bookname + '&bCon=&ecode=utf-8&channel=search&Field=1" target="_blank">参考联盟</a>');
        });
    } else if (pageurl.includes("book.douban.com/works")) {
        $("div.bkdesc > a.pl2").each((i, el) => {
            let bookname = slim($(el).text());
            $(el).after(' | <a style="font-size: 80%; color: orange;" href="http://book.ucdrs.superlib.net/search?sw=' + bookname + '&bCon=&ecode=utf-8&channel=search&Field=1" target="_blank">参考联盟</a>');
        });
    } else if (pageurl.includes("book.douban.com/cart")) {
        $("td.book_title > a").each((i, el) => {
            let bookname = slim($(el).text());
            $(el).after(' | <a style="font-size: 80%; color: orange;" href="http://book.ucdrs.superlib.net/search?sw=' + bookname + '&bCon=&ecode=utf-8&channel=search&Field=1" target="_blank">参</a>');
        });
    } else if (pageurl.includes("www.douban.com/doulist")) {
        $("div.title > a").each((i, el) => {
            let bookname = slim($(el).text());
            let $src = slim($(el).parent().prev().prev().text());
            if ($src == "来自：豆瓣读书") {
                $(el).after(' | <a style="font-size: 80%; color: orange;" href="http://book.ucdrs.superlib.net/search?sw=' + bookname + '&bCon=&ecode=utf-8&channel=search&Field=1" target="_blank">参考联盟</a>');
            }
        });
    } else if (pageurl.match("book.douban.com.*/(series|tag|do|wish|collect)")) {
        $("div.info > h2 > a").each((i, el) => {
            let bookname = slim($(el).text());
            $(el).after(' | <a style="font-size: 80%; color: orange;" href="http://book.ucdrs.superlib.net/search?sw=' + bookname + '&bCon=&ecode=utf-8&channel=search&Field=1" target="_blank">参考联盟</a>');
        });
    } else if (pageurl.includes("book.douban.com/author")) {
        $("h6 > a").each((i, el) => {
            let bookname = slim($(el).text());
            $(el).after(' | <a style="font-size: 80%; color: orange;" href="http://book.ucdrs.superlib.net/search?sw=' + bookname + '&bCon=&ecode=utf-8&channel=search&Field=1" target="_blank">参考联盟</a>');
        });
    } else if (pageurl.includes("book.douban.com/subject")) {
        let json = $("script[type='application/ld+json']").text();
        let st = json.match(/"name" : "(.*?)",/)[1];
        let m = json.match(/"isbn" : "(.*?)",/);
        if (m) {
            st = m[1];
            $("div#mainpic > a.nbg").after('<br><a href="http://book.ucdrs.superlib.net/search?sw=' + st + '&bCon=&ecode=utf-8&channel=search&Field=All" target="_blank">参考联盟</a>');
        }
        else {
            $("div#mainpic > a.nbg").after('<br><a href="http://book.ucdrs.superlib.net/search?sw=' + st + '&bCon=&ecode=utf-8&channel=search&Field=1" target="_blank">参考联盟</a>');
        }
    } else if (pageurl.includes("book.ucdrs.superlib.net/search")) {
        $('td[id="b_img"]').each((i, el) => {
            let bookid = $(el).parent("tr").find('input[name*="ssid"]').val();
            let bookname = $(el).parent("tr").find('input[name*="title"]').val().replaceAll(/<.*?>/g, "");
            if (bookname) {
                $(el).parent().children().last().find("a").after(' | <a href="https://search.douban.com/book/subject_search?search_text=' + bookname + '" target="_blank">豆瓣</a>');
            }
            if (bookid) {
                $(el).after(showbid(bookid, "SS号"));
            } else if ((bookid = $(el).find("a[href]").attr("href").match(/dxNumber=(\d+)/))) {
                $(el).after(showbid(bookid[1], "DX号"));
            }
        });
    } else if (pageurl.includes("//cadal.edu.cn/cadalinfo/search")) {
        $('a.title').each((i, el) => {
            let bookid = $(el).attr("onclick").match(/'\w+'/)[0].replace(/'/g, "").replace("hj", "");
            $(el).parent().parent().prev().find("a").after(showbid("CD" + bookid, "CADAL号<br>"));
            let bookname = $(el).text().trim();
            $(el).after(' | <a href="https://search.douban.com/book/subject_search?search_text=' + bookname + '" target="_blank">豆瓣</a>');
        });
    } else if (pageurl.includes("://cadal.edu.cn/cardpage/bookCardPage?ssno=")) {
        let bookid = pageurl.match(/ssno=(\w+)/)[1];
        $('div.title_img').each((i, el) => {
            let st = $("span.title").text().trim();
            let m = $(el).next().text().match(/ISBN：(.*?)\n/);
            if (m) {
                st = m[1];
            }
            $(el).find("a").after(showbid("CD" + bookid, "CADAL号<br>"));
            $("span.title").after(' | <a href="https://search.douban.com/book/subject_search?search_text=' + st + '" target="_blank">豆瓣</a>');
        });
    } else if (pageurl.includes("/search") && $('#dxid0').val()) {
        $('div[class="divImg"]').each((i, el) => {
            let ssid = $(el).prev().val();
            let dxid = $(el).prev().prev().val();
            let bookname = $(el).parent().find('input[name*="title"]').val().replaceAll(/<.*?>/g, "");
            if (bookname) {
                $(el).next().find("dt").find("a").after(' | <a href="https://search.douban.com/book/subject_search?search_text=' + bookname + '" target="_blank" style="color: blue">豆瓣</a>');
            }
            if (ssid) {
                $(el).children().first().after(showbid(ssid, "SS号"));
            } else if (dxid) {
                $(el).children().first().after(showbid(dxid, "DX号"));
            }
        });
    } else if (pageurl.includes("/views/specific/")) {
        let m = $("script:contains(send_requestajax)").text().match(/ssn=(\d{3,})/);
        let img = $("div.tubookimg>img");
        if (m) {
            img.after(showbid(m[1], "SS号"));
        } else if ((m = pageurl.match(/dxNumber=(\d+)/))) {
            img.after(showbid(m[1], "DX号"));
        }
        let st = $("div.tutilte").text();
        let m2 = $("div.tubox").find("dl").text().match(/【ISBN号】(.*?)\n/);
        if (m2) {
            st = m2[1];
        }
        img.after('<p style="text-align: center"><a href="https://search.douban.com/book/subject_search?search_text=' + st + '" target="_blank">豆瓣</a></p>');
    } else if (pageurl.includes("bookDetail.jsp?") && $('input#dxid').val()) {
        let m = $("script:contains(send_requestlib)").text().match(/ssn=(\d{3,})/);
        let img = $("#grade1").prev();
        if (m) {
            img.after(showbid(m[1], "SS号"));
        } else if ((m = pageurl.match(/dxNumber=(\d+)/))) {
            img.after(showbid(m[1], "DX号"));
        }
        let st = $("input#dxid").prev().text();
        let m2 = $("div.card_text").find("dl").text().match(/ISBN号 ：(.*?)\n/);
        if (m2) {
            st = m2[1];
        }
        img.after('<p style="text-align: center"><a href="https://search.douban.com/book/subject_search?search_text=' + st + '" target="_blank">豆瓣</a></p>');
    }
})();