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+// 文件: FAFU.js (v3)
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+// 福建农林大学教务系统课程表导入脚本
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+// 适配对象: 经典正方教务系统 (jwgl.fafu.edu.cn, default2.aspx)
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+// 说明: 解析"时间网格"式课表 —— 行为节次、列为星期，
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+// 课程单元格为分行文本(课程名 / 周X第Y节{第X-Y周} / 教师 / 地点)。
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+// v3: 支持课表位于同源 iframe 内；用 innerHTML 按 <br> 切行；失败时输出诊断。
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+
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+// ---------------- 通用工具 ----------------
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+function cleanText(s) {
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+ return (s || '')
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+ .replace(/\u00a0/g, ' ')
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+ .replace(/\s+/g, ' ')
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+ .trim();
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+}
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+
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+// 展开周次数组 "1-16" 及 单/双周 过滤
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+function expandWeeks(start, end, parity) {
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+ const weeks = [];
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+ for (let i = start; i <= end; i++) {
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+ if (parity === 1 && i % 2 !== 1) continue;
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+ if (parity === 2 && i % 2 !== 0) continue;
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+ weeks.push(i);
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+ }
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+ return weeks;
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+}
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+
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+// 解析课程信息行："周一第1,2节{第1-5周}" / "{第1-17周|2节/周}" / "{第16-16周|双周}"
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+function parseInfoLine(info) {
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+ let day = 0;
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+ const dayM = /星期?([一二三四五六日])/.exec(info || '');
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+ if (dayM) day = '一二三四五六日'.indexOf(dayM[1]) + 1;
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+
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+ let sections = [];
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+ const secM = /第(\d+(?:,\d+)*)节/.exec(info || '');
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+ if (secM) sections = secM[1].split(',').map(Number);
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+
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+ let weekStart = 0, weekEnd = 0;
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+ const wM = /第(\d+)(?:-(\d+))?周/.exec(info || '');
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+ if (wM) {
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+ weekStart = parseInt(wM[1]);
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+ weekEnd = wM[2] ? parseInt(wM[2]) : weekStart;
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+ }
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+ let parity = 0;
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+ if (/单周/.test(info || '')) parity = 1;
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+ else if (/双周/.test(info || '')) parity = 2;
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+
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+ return { day, sections, weekStart, weekEnd, parity };
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+}
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+
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+// ---------------- 若课表在 iframe 中，需递归收集同源文档 ----------------
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+function getAllDocs() {
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+ const docs = [document];
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+ const seen = new Set([document]);
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+ (function walk(doc) {
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+ try {
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+ const frames = doc.querySelectorAll('iframe, frame');
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+ frames.forEach(f => {
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+ const inner = f.contentDocument;
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+ if (inner && !seen.has(inner)) {
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+ seen.add(inner);
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+ docs.push(inner);
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+ walk(inner);
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+ }
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+ });
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+ } catch (e) { /* 跨域 iframe 无法访问，忽略 */ }
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+ })(document);
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+ return docs;
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+}
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+
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+// 在所有文档中定位课表网格
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+function locateGridTable() {
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+ for (const doc of getAllDocs()) {
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+ const tables = doc.querySelectorAll('table');
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+ for (const t of tables) {
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+ const txt = cleanText(t.textContent || '');
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+ if (txt.includes('上午') && txt.includes('第1节') &&
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+ /星期[一二三四五六日]/.test(txt)) {
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+ return t;
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+ }
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+ }
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+ }
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+ return null;
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+}
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+
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+function countTables() {
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+ return getAllDocs().reduce((n, d) => n + d.querySelectorAll('table').length, 0);
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+}
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+
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+// 星期列的水平范围 {星期号: {left, right}}
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+function buildDayColumns(table) {
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+ const headerTr = Array.from(table.querySelectorAll('tr'))
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+ .find(tr => /星期[一二三四五六日]/.test(tr.textContent || ''));
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+ if (!headerTr) return {};
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+ const cols = {};
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+ Array.from(headerTr.querySelectorAll('td, th')).forEach(td => {
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+ const m = /星期([一二三四五六日])/.exec(td.textContent || '');
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+ if (!m) return;
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+ const dayNum = '一二三四五六日'.indexOf(m[1]) + 1;
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+ const r = td.getBoundingClientRect();
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+ if (r.width > 0) cols[dayNum] = { left: r.left, right: r.right };
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+ });
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+ return cols;
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+}
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+
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+// 因单元格有 rowspan/colspan，用几何位置判断其属于哪个星期列
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+function dayFromRect(td, dayCols) {
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+ const r = td.getBoundingClientRect();
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+ const cx = (r.left + r.right) / 2;
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+ for (const dayNum in dayCols) {
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+ const c = dayCols[dayNum];
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+ if (cx >= c.left - 2 && cx <= c.right + 2) return parseInt(dayNum);
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+ }
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+ return 0;
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+}
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+
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+// 用单元格 HTML 按 <br> 切行(不依赖 innerText，隐藏表格也能解析)
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+function cellLines(td) {
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+ const html = td.innerHTML || '';
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+ return html.split(/<br\s*\/?>/i)
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+ .map(s => cleanText(s.replace(/<[^>]*>/g, '')));
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+}
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+
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+// 把行按空行切成课程块，每块 4 行：课程名/节次周次/教师/地点
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+function splitBlocks(lines) {
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+ const blocks = [];
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+ let cur = [];
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+ for (const ln of lines) {
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+ if (ln === '') {
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+ if (cur.length) { blocks.push(cur); cur = []; }
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+ } else {
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+ cur.push(ln);
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+ }
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+ }
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+ if (cur.length) blocks.push(cur);
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+ return blocks;
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+}
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+
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+// 解析网格课表
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+function parseGridTable(table) {
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+ const dayCols = buildDayColumns(table);
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+ const courses = [];
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+ const rows = Array.from(table.querySelectorAll('tr'));
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+
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+ rows.forEach(tr => {
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+ // 该行首个"第X节"标签（用于无节次信息的课程，如体育）
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+ let rowSectionStart = 0;
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+ Array.from(tr.querySelectorAll('td')).forEach(td => {
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+ if (rowSectionStart) return;
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+ const m = /^第(\d+)节$/.exec(cleanText(td.innerText || td.textContent || ''));
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+ if (m) rowSectionStart = parseInt(m[1]);
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+ });
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+
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+ Array.from(tr.querySelectorAll('td')).forEach(td => {
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+ const lines = cellLines(td).map(l => l.trim());
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+ if (!lines.some(l => l)) return; // 全空则跳过
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+ const blocks = splitBlocks(lines);
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+
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+ blocks.forEach(block => {
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+ // 课程块需至少 4 行且末行为地点（可过滤"上午/早晨/第X节"等标签）
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+ if (block.length < 4 || !block[3]) return;
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+ const name = block[0] || '';
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+ const info = block[1] || '';
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+ const teacher = block[2] || '';
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+ const location = block[3] || '';
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+
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+ const parsed = parseInfoLine(info);
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+ const day = parsed.day || dayFromRect(td, dayCols);
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+
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+ let sections = parsed.sections;
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+ if (!sections.length && rowSectionStart) {
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+ const span = td.rowSpan || 1;
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+ sections = Array.from({ length: span }, (_, i) => rowSectionStart + i);
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+ }
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+ const weeks = expandWeeks(parsed.weekStart, parsed.weekEnd, parsed.parity);
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+
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+ if (!day || !sections.length || !weeks.length || !name) return;
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+ courses.push({
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+ name: name,
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+ day: day,
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+ weeks: weeks,
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+ teacher: teacher,
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+ position: location,
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+ startSection: sections[0],
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+ endSection: sections[sections.length - 1]
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+ });
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+ });
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+ });
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+ });
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+ return courses;
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+}
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+
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+// ---------------- 主流程 ----------------
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+async function scrapeAndParseCourses() {
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+ window.shiguangBridge.showToast("正在解析课表数据...");
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+ const table = locateGridTable();
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+ if (!table) {
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+ const ts = countTables();
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+ await window.shiguangBridgePromise.showAlert(
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+ "导入失败",
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+ "未定位到课表网格。\n当前共检测到 " + ts + " 个表格。\n请确认：\n1.已登录教务系统\n2.已在【信息查询-学生个人课表】点击【查询】并显示课程\n3.若课表在 iframe/新窗口，脚本已自动尝试进入同源 iframe" +
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+ (ts === 0 ? "\n\n提示：检测到 0 个表格，可能脚本运行于错误页面/跨域 iframe，请返回课表页面后重试。" : ""),
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+ "确定"
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+ );
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+ return null;
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+ }
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+ const result = parseGridTable(table);
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+ if (result.length === 0) {
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+ await window.shiguangBridgePromise.showAlert(
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+ "导入失败",
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+ "已定位到课表，但未解析出任何课程。\n请点击【查询】让课表显示课程数据后重试。",
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+ "确定"
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+ );
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+ return null;
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+ }
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+ return { courses: result };
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+}
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+
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+async function saveCourses(courses) {
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+ window.shiguangBridge.showToast(`正在保存 ${courses.length} 门课程...`);
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+ try {
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+ await window.shiguangBridgePromise.saveImportedCourses(JSON.stringify(courses));
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+ return true;
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+ } catch (error) {
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+ window.shiguangBridge.showToast("课程保存失败: " + error.message);
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+ return false;
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+ }
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+}
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+
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+async function runImportFlow() {
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+ const confirmed = await window.shiguangBridgePromise.showAlert(
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+ "福建农林大学课表导入",
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+ "导入前请确保已在【学生个人课表】页面点击了【查询】并显示了课程。\n确认后脚本将自动解析当前课表。",
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+ "好的，开始导入"
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+ );
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+ if (!confirmed) {
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+ window.shiguangBridge.showToast("用户取消了导入。");
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+ return;
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+ }
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+ const result = await scrapeAndParseCourses();
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+ if (!result) return;
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+ const ok = await saveCourses(result.courses);
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+ if (!ok) return;
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+ window.shiguangBridge.showToast(`课程导入成功，共 ${result.courses.length} 门！`);
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+ window.shiguangBridge.notifyTaskCompletion();
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+}
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+
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+runImportFlow();
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