// ==UserScript==
// @name         方正教务系统成绩分项下载
// @namespace    ikaikail@ikaikail.com
// @version      1.7
// @description  期末成绩不理想？担心被穿小鞋？不用怕！这款脚本让你期末成绩和平时成绩一目了然！
// @author       iKaiKail
// @match        *://*/jwglxt/cjcx/*
// @icon         https://www.zfsoft.com/img/zf.ico
// @grant        none
// @require      https://code.jquery.com/jquery-3.6.0.min.js
// @downloadURL none
// ==/UserScript==
 
 
(function() {
    'use strict';
 
    // 创建下载按钮
    const createDownloadButton = () => {
        return $('<button>', {
            type: 'button',
            class: 'btn btn-primary btn-sm mx-2',
            text: '导出所有成绩'
        });
    };
 
    // 文件下载器
    const downloadFile = (blob, filename = `成绩单_${Date.now()}.xlsx`) => {
        const url = URL.createObjectURL(blob);
        const link = document.createElement('a');
        link.href = url;
        link.download = filename;
        document.body.appendChild(link);
        link.click();
        document.body.removeChild(link);
        URL.revokeObjectURL(url);
    };
 
    // 处理导出请求
    const handleExport = async () => {
        try {
            const xnm = document.getElementById('xnm').value;
            const xqm = document.getElementById('xqm').value;
 
            // 构建符合服务器要求的参数列表
            const params = new URLSearchParams([
                ['gnmkdmKey', 'N305005'],
                ['xnm', xnm],
                ['xqm', xqm],
                ['dcclbh', 'JW_N305005_GLY'],
                ...[
                    'kcmc@课程名称',
                    'xnmmc@学年',
                    'xqmmc@学期',
                    'kkbmmc@开课学院',
                    'kch@课程代码',
                    'jxbmc@教学班',
                    'xf@学分',
                    'xmcj@成绩',
                    'xmblmc@成绩分项'
                ].map(col => ['exportModel.selectCol', col]),
                ['exportModel.exportWjgs', 'xls'],
                ['fileName', '成绩单']
            ]);
 
            const response = await fetch('/jwglxt/cjcx/cjcx_dcXsKccjList.html', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/x-www-form-urlencoded'
                },
                body: params
            });
 
            if (!response.ok) {
                throw new Error(`服务器返回异常状态码: ${response.status}`);
            }
 
            const blob = await response.blob();
            downloadFile(blob);
        } catch (error) {
            console.error('导出操作失败:', error);
            alert(`导出失败: ${error.message}`);
        }
    };
 
    // 初始化功能
    const init = () => {
        const $searchButton = $('#search_go');
        const $downloadButton = createDownloadButton()
            .click(handleExport)
            .prop('title', '导出包含所有成绩分项的完整数据');
 
        $searchButton.length > 0 ?
            $searchButton.after($downloadButton) :
            $('body').prepend($downloadButton);
    };
 
    // 等待页面主要元素加载完成
    const checkDOM = () => {
        if (document.getElementById('xnm') && document.getElementById('xqm')) {
            init();
        } else {
            setTimeout(checkDOM, 300);
        }
    };
 
    // 启动检测
    checkDOM();
})();