BUPT GPA

Calculate GPA in URP system
当前为 2019-01-31 提交的版本，查看最新版本。
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// ==UserScript==
// @name         BUPT GPA
// @namespace    https://ssine.cc/
// @version      1.9
// @description  Calculate GPA in URP system
// @author       Liu Siyao
// @include      *://jwxt.bupt.edu.cn/jwLoginAction.do
// @include      *://vpn.bupt.edu.cn/http/jwxt.bupt.edu.cn/jwLoginAction.do
// @grant        none
// @require      https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js
// @require      https://cdn.jsdelivr.net/npm/vue
// ==/UserScript==
 
(function() {
'use strict';
window.parent.frames[1].onload = ()=>{
$.get('/gradeLnAllAction.do?type=ln&oper=qbinfo').then(
(res)=>{
 
    var algoNames = ['标准4.0', '改进4.0', '北大4.0', '加拿大4.3', '中科大4.3', '上海交大4.3'];
    var algoArea = [
        [59, 69, 79, 89, 100],
        [59, 69, 84, 100],
        [59, 63, 67, 71, 74, 77, 81, 84, 89, 100],
        [59, 64, 69, 74, 79, 84, 89, 100],
        [59, 60, 63, 64, 67, 71, 74, 77, 81, 84, 89, 94, 100],
        [59, 61, 64, 66, 69, 74, 79, 84, 89, 94, 100]
    ];
    var algoGp = [
        [0, 1, 2, 3, 4],
        [0, 2, 3, 4],
        [0, 1, 1.5, 2, 2.3, 2.7, 3, 3.3, 3.7, 4],
        [0, 2.3, 2.7, 3, 3.3, 3.7, 4, 4.3],
        [0, 1, 1.3, 1.5, 1.7, 2, 2.3, 2.7, 3, 3.3, 3.7, 4, 4.3],
        [0, 1, 1.7, 2, 2.3, 2.7, 3, 3.3, 3.7, 4, 4.3]
    ];
    function getGP(score, i) {
        var area = algoArea[i];
        var gp = algoGp[i];
        for (var idx in area) {
            if(score <= area[idx])
                return gp[idx];
        }
        return score;
    };
 
    class course {
        constructor(no, name, semester, type, credit, grade) {
            this.no = no;
            this.name = name;
            this.semester = semester;
            this.type = type;
            this.credit = credit;
            this.grade = grade;
        }
    }
 
    var calc_mat = [];
    var course_lst = [];
    var semesters = [];
    var course_types = ['必修', '选修', '任选'];
    var semester_name = '';
 
    function showResult() {
        // console.log(course_lst);
        
        var sum = 0, total_credit = 0;
        var gpLst = [0, 0, 0, 0, 0, 0];
        
        for (var idx = 0; idx < course_lst.length; idx++) {
            var course = course_lst[idx];
            if (!calc_mat[semesters.indexOf(course.semester)][course_types.indexOf(course.type)])
                continue;
            total_credit += course.credit;
            sum += course.credit * course.grade;
            for (var j in gpLst) {
                gpLst[j] += course.credit * getGP(course.grade, j);
            }
        };
 
 
        $('#gpa-res').empty();
        $('#gpa-res').append($('<table>\
            <tr><th>算法</th><th>GPA</th></tr>\
            </table>'));
 
        for (var idx in gpLst) {
            var newTr = "<tr><td>" + algoNames[idx] + "</td><td>" + (gpLst[idx]/total_credit).toFixed(2) + "</td></tr>";
            $('#gpa-res table').append($(newTr));
        }
        var contentStr = "特殊加权学分绩:   " + (sum / total_credit).toFixed(2);
        contentStr += "<br>已修读学分:   " + total_credit.toString();
        $('#gpa-res').append($('<p>' + contentStr + '</p>'));
    }
 
    function appendResult(lst, name) {
        var sum = 0, total = 0;
        var gpLst = [0, 0, 0, 0, 0, 0];
 
        for (var idx = 0; idx < lst.length; idx++) {
            var items = lst[idx].getElementsByTagName('td');
            if (isNaN(parseFloat(items[6].innerText)))
                continue;
            total += parseFloat(items[4].innerText);
            sum += parseFloat(items[4].innerText) * parseFloat(items[6].innerText);
            for (var j in gpLst) {
                gpLst[j] += parseFloat(items[4].innerText) * getGP(parseFloat(items[6].innerText), j);
            }
        };
 
        var frame = window.parent.frames[1].document.getElementsByName('mainFrame')[0];
        frame = frame.contentDocument || frame.contentWindow.document;
        var injectEntry = $(frame).find('.hometopbg1:first');
        var contentStr = "特殊加权学分绩:   " + (sum / total).toFixed(2);
        contentStr += "\\n已修读学分:   " + total.toString();
        for (var idx in gpLst) {
            contentStr += "\\nGPA(" + algoNames[idx] + "):   " + (gpLst[idx]/total).toFixed(2);
        }
        var newtr = $('<tr><td height="25"><a href="javascript:alert(\'' + contentStr +
                      '\');">查看GPA(' + name + ')</a></td></tr>');
        injectEntry.append(newtr);
    }
 
    $.get('/gradeLnAllAction.do?type=ln&oper=sxinfo&lnsxdm=001').then( (res)=>{
        var doc = new DOMParser().parseFromString(res, "text/html");
        appendResult(doc.querySelectorAll('a[name=qb_001] .odd'), "必修");
        appendResult(doc.querySelectorAll('a[name=qb_001] .odd, a[name=qb_02] .odd'), "必修+选修");
        appendResult(doc.querySelectorAll('.odd'), "必修+选修+任选");
    });
 
    var parser = new DOMParser();
    var doc = parser.parseFromString(res, "text/html");
 
    var body_lst = doc.getElementsByTagName('body')[0].childNodes;
 
 
 
    for(var i = 0; i < body_lst.length; i++) {
        if (body_lst[i].tagName == 'A') {
            semester_name = body_lst[i].name;
            if (semesters.indexOf(semester_name) == -1) {
                semesters.push(semester_name);
            }
        } else if (body_lst[i].className == 'titleTop2') {
            var entry = $(body_lst[i]).find('.odd');
            for (var j = 0; j < entry.length; j++) {
                var lst = entry[j].getElementsByTagName('td');
                var grade = parseFloat(entry[j].getElementsByTagName('p')[0].innerText);
                if (isNaN(grade)) continue;
                course_lst.push(new course(
                    lst[0].innerText.trim(), 
                    lst[2].innerText.trim(),
                    semester_name, 
                    lst[5].innerText.trim(), 
                    parseFloat(lst[4].innerText), 
                    grade
                ));
            }
        }
    }
 
    for (var i = 0; i < semesters.length; i++)
        calc_mat.push([true, true, false]);
 
 
    var gpa_div = $('<div id="gpa">\
    <div id="gpa-side">\
    <div id="gpa-modify">\
    <h2>课程属性:</h2>\
    <table>\
    <tr>\
        <th>课程名</th>\
        <th>类型</th>\
        <th>成绩</th>\
        <th>学分</th>\
    </tr>\
    <tr v-for="c in courses">\
        <td>{{c.name}}</td>\
        <td>\
            <select v-model="c.type">\
            <option>必修</option>\
            <option>选修</option>\
            <option>任选</option>\
            </select>\
        </td>\
        <td>{{c.grade}}</td>\
        <td>{{c.credit}}</td>\
    </tr>\
    </table></div>\
    </div>\
    \
    \
    <div id="gpa-main-frame">\
    <div id="calc-app">\
    <h2>要计算的课程:</h2>\
    <table>\
    <tr>\
        <th>学期</th>\
        <th>必修</th>\
        <th>选修</th>\
        <th>任选</th>\
    </tr>\
    <tr v-for="(r, idx) in mat">\
        <td>{{ semesters[idx] }}</td>\
        <td><input type="checkbox" id="checkbox" v-model="r[0]"></td>\
        <td><input type="checkbox" id="checkbox" v-model="r[1]"></td>\
        <td><input type="checkbox" id="checkbox" v-model="r[2]"></td>\
    </tr>\
    </table></div>\
    \
    \
    <h2>结果:</h2>\
    <div id="gpa-res">\
    </div>\
    <hr>\
    <p>程序完全基于前端，不会存储个人信息。</p>\
    <p>觉得好用来<a target="_blank" href="https://github.com/ssine/BUPT-GPA">仓库</a>点个star好不好ヽ(✿ﾟ▽ﾟ)ノ</p>\
    <p>欢迎把<a target="_blank" href="https://greasyfork.org/zh-CN/scripts/369550-bupt-gpa">这个脚本</a>分享给你的朋友哦(*/ω＼*)</p>\
    </div>\
    </div>');
 
    
    var sheet_css = $('<style>\
    #gpa {\
        position: absolute;\
        right: 70px;\
        bottom: 20px;\
        height: 80%;\
        background-color: rgba(255,255,255,0.9);\
    }\
    #gpa-side {\
        float: left;\
        margin-right: 20px;\
        height: 100%;\
        overflow: auto;\
    }\
    #gpa-main-frame {\
        float: left;\
        height: 100%;\
        overflow: auto;\
    }\
    #gpa-modify table tr td:first-child, #gpa-modify table tr th:first-child {\
        width: 200px;\
    }\
    #calc-app {\
    }\
    #res-app {\
        margin-top: 50px;\
    }\
    #gpa-btn {\
        position: absolute;\
        right: 20px;\
        bottom: 20px;\
        background-color: RGB(119,119,119);\
        color: rgb(255,255,255);\
        height: 50px;\
        width: 50px;\
        border-radius: 50px;\
        font-family: sans-serif;\
    }\
    </style>');
    $('head').append(sheet_css);
 
    gpa_div.hide();
    $('html').append(gpa_div);
 
    var btn = $('<button id="gpa-btn">GPA</button>');
    btn.click(() => {
        var app = $('#gpa');
        if (app.css('display') == 'none')
            app.css('display', '');
        else 
            app.css('display', 'none');
    });
    $('html').append(btn);
 
    showResult();
 
    var gpa_modify = new Vue({
        el: '#gpa-modify',
        data: {
            courses: course_lst
        },
        watch: {
            courses: {
                handler(newValue, oldValue) {
                    showResult();
                },
                deep: true
            }
        }
    });
    
    var calc_app = new Vue({
        el: '#calc-app',
        data: {
            mat: calc_mat,
            semesters: semesters
        },
        watch: {
            mat: showResult
        }
    });
 
}
)
}
})();