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// ==UserScript==
// @name PS Calendar to ICS (ZJU)
// @namespace https://github.com/yourname/ps-calendar-to-ics
// @version 0.3.8.3
// @description 将 PeopleSoft「我的每周课程表-列表查看」导出为 ICS 文件（支持中文/英文标签，Asia/Shanghai）
// @author You
// @match https://scrsprd.zju.edu.cn/psc/CSPRD/EMPLOYEE/HRMS/*
// @match file:///*
// @run-at document-idle
// @grant none
// @license MIT
// ==/UserScript==
(function () {
"use strict";
const APP_NAME = "PS Calendar to ICS";
const TZID = "Asia/Shanghai"; // China Standard Time (no DST)
const HOST_HINT = "scrsprd.zju.edu.cn";
// 2025-2026学年秋冬学期学术日历
const ACADEMIC_CALENDAR_2025_2026 = {
semesterStart: new Date(2025, 8, 15), // 9月15日
semesterEnd: new Date(2026, 0, 10), // 1月10日（包含考试期间）
holidays: [
// 中秋节、国庆节放假调休
{ start: new Date(2025, 9, 1), end: new Date(2025, 9, 8), name: "中秋节、国庆节放假调休" },
// 元旦放假
{ start: new Date(2026, 0, 1), end: new Date(2026, 0, 1), name: "元旦放假" }
],
makeupClasses: [
// 9月28日工作日，授10月3日周五课
{ date: new Date(2025, 8, 28), originalDay: 5, name: "授10月3日周五课" }, // 5 = Friday
// 10月11日工作日，授10月8日周三课
{ date: new Date(2025, 9, 11), originalDay: 3, name: "授10月8日周三课" } // 3 = Wednesday
],
specialEvents: [
// 新生报到注册
{ date: new Date(2025, 7, 22), name: "新生报到注册", type: "allday" },
// 本科生新生始业教育、军训
{ start: new Date(2025, 7, 23), end: new Date(2025, 8, 14), name: "本科生新生始业教育、军训", type: "allday" },
// 本科生开学典礼
{ date: new Date(2025, 7, 24), name: "本科生开学典礼", type: "allday" },
// UIUC校历课程开始
{ date: new Date(2025, 7, 25), name: "UIUC校历课程-课程开始", type: "allday" },
// ZJUI二轮选课开始
{ date: new Date(2025, 7, 25), name: "ZJUI二轮选课开始", type: "allday" },
// UIUC校历课程本科生加课截止时间
{ date: new Date(2025, 8, 8), name: "UIUC校历课程本科生加课截止时间", type: "allday" },
// 本科生老生报到注册
{ date: new Date(2025, 8, 12), name: "本科生老生报到注册", type: "allday" },
// 本科生选课截止
{ date: new Date(2025, 8, 19), name: "本科生选课截止", type: "allday" },
// UIUC校历课程本科生退课截止日期
{ date: new Date(2025, 9, 17), name: "UIUC校历课程本科生退课截止日期", type: "allday" },
// 秋季校运动会停课
{ start: new Date(2025, 9, 24), end: new Date(2025, 9, 26), name: "秋季校运动会停课", type: "no_class" },
// 本科生申请退课截止日期
{ date: new Date(2025, 10, 7), name: "本科生申请退课截止日期", type: "allday" },
// 国际校区2025年辞旧迎新活动
{ date: new Date(2025, 11, 21), name: "国际校区2025年辞旧迎新活动", type: "allday" },
// 课程结束
{ date: new Date(2025, 11, 26), name: "课程结束", type: "allday" },
// 复习与考试
{ start: new Date(2025, 11, 29), end: new Date(2025, 11, 30), name: "复习与考试", type: "allday" },
// 浙江大学学生节
{ date: new Date(2025, 11, 31), name: "浙江大学学生节", type: "allday" },
// 复习与考试（1月）
{ start: new Date(2026, 0, 2), end: new Date(2026, 0, 10), name: "复习与考试", type: "allday" }
]
};
/**
* Main bootstrap function
*/
function bootstrap() {
tryInjectForDocument(window.document);
observeForSchedule(window.document);
// Handle target iframes
const iframeSelector = "iframe.ps_target-iframe";
const iframeList = Array.from(document.querySelectorAll(iframeSelector));
iframeList.forEach((iframe) => attachIframeListener(iframe));
// Observe future iframes
const obs = new MutationObserver((mutations) => {
for (const m of mutations) {
if (m.type === "childList") {
m.addedNodes.forEach((node) => {
if (
node instanceof HTMLIFrameElement &&
node.classList.contains("ps_target-iframe")
) {
attachIframeListener(node);
}
});
}
}
});
obs.observe(document.documentElement || document.body, {
childList: true,
subtree: true,
});
}
function attachIframeListener(iframe) {
iframe.addEventListener("load", () => {
try {
const doc = iframe.contentDocument;
if (!doc) return;
tryInjectForDocument(doc);
observeForSchedule(doc);
} catch (_) {
// ignore cross-origin issues
}
});
}
function observeForSchedule(doc) {
const observer = new MutationObserver(() => {
if (findScheduleRoot(doc)) {
injectExportButton(doc);
}
});
observer.observe(doc.documentElement || doc.body, {
subtree: true,
childList: true,
attributes: false,
});
}
function tryInjectForDocument(doc) {
if (findScheduleRoot(doc)) {
injectExportButton(doc);
}
}
function findScheduleRoot(doc) {
// Look for course schedule container based on real HTML structure
const selectors = [
'div[id*="DERIVED_REGFRM1_DESCR20"]', // Course container
'table[id*="CLASS_MTG_VW"]', // Meeting time table
'div[id*="win0divSTDNT_ENRL_SSV2"]', // Original container
];
for (const sel of selectors) {
const elements = Array.from(doc.querySelectorAll(sel));
for (const el of elements) {
if (isScheduleContainer(el)) {
return el;
}
}
}
// Fallback: look for elements containing course schedule indicators
const fallbackSelectors = [
'td.PAGROUPDIVIDER', // Course title divider
'th[abbr*="课程号码"]', // Course number header
'th[abbr*="日期和时间"]', // Date and time header
];
for (const sel of fallbackSelectors) {
const el = doc.querySelector(sel);
if (el) {
let parent = el;
for (let i = 0; i < 10 && parent; i++) {
parent = parent.parentElement;
if (parent && isScheduleContainer(parent)) {
return parent;
}
}
}
}
return null;
}
function isScheduleContainer(el) {
const text = cleanText(el.textContent);
if (!text) return false;
const hasScheduleContent =
/课程表|我的课程|课程号码|日期和时间|开始.结束日期|讲师/i.test(text) ||
/Class Schedule|Course|Meeting Times|Instructor/i.test(text);
const hasSubstantialContent = text.length > 50;
const hasCourseTables = el.querySelectorAll('table[id*="CLASS_MTG_VW"], td.PAGROUPDIVIDER').length > 0;
return hasScheduleContent && (hasSubstantialContent || hasCourseTables);
}
function injectExportButton(doc) {
// Avoid duplicate buttons
if (doc.querySelector("#ps-ics-export-btn")) return;
const scheduleRoot = findScheduleRoot(doc);
if (!scheduleRoot) return;
// Create export button
const btn = doc.createElement("button");
btn.id = "ps-ics-export-btn";
btn.textContent = "导出 ICS";
btn.style.cssText = `
position: fixed;
top: 20px;
right: 20px;
z-index: 10000;
padding: 8px 16px;
background: #007cba;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 14px;
font-family: sans-serif;
box-shadow: 0 2px 8px rgba(0,0,0,0.3);
`;
btn.addEventListener("click", () => {
try {
console.log(APP_NAME, "开始解析课程表...");
const parsed = parseScheduleFromDocument(doc);
console.log(APP_NAME, "解析结果:", parsed);
if (!parsed.events || parsed.events.length === 0) {
alert("未找到课程信息。请确保您处于\"列表查看\"界面。");
return;
}
const icsText = buildICS(parsed);
const fileName = buildSuggestedFileName(parsed);
triggerDownload(icsText, fileName);
console.log(APP_NAME, "导出完成，文件名:", fileName);
} catch (err) {
console.error(APP_NAME, err);
alert("导出失败：" + (err && err.message ? err.message : String(err)));
}
});
// Insert button into the document
doc.body.appendChild(btn);
console.log(APP_NAME, "导出按钮已注入");
}
/**
* Parse schedule from document using real HTML structure
*/
function parseScheduleFromDocument(doc) {
const events = [];
let termTitle = detectTermTitle(doc);
// Find all course containers
const courseContainers = Array.from(doc.querySelectorAll('div[id*="DERIVED_REGFRM1_DESCR20"]'));
console.log(APP_NAME, `找到 ${courseContainers.length} 个课程容器`);
for (const container of courseContainers) {
try {
const courseEvents = parseCourseContainer(container);
events.push(...courseEvents);
} catch (err) {
console.warn(APP_NAME, "解析课程容器时出错:", err);
}
}
return { termTitle, events };
}
function parseCourseContainer(container) {
const events = [];
// Get course title from PAGROUPDIVIDER
const courseTitleElement = container.querySelector('td.PAGROUPDIVIDER');
let currentCourseCode = "";
let currentCourseName = "";
if (courseTitleElement) {
const fullTitle = cleanText(courseTitleElement.textContent);
// Parse "CS 101 - 计算导论：工程与科学" format
const match = fullTitle.match(/^([A-Z]+\s*\d+)\s*-\s*(.+)$/);
if (match) {
currentCourseCode = match[1].trim();
currentCourseName = match[2].trim();
} else {
currentCourseName = fullTitle;
}
}
console.log(APP_NAME, `解析课程: ${currentCourseCode} - ${currentCourseName}`);
// Find the meeting times table
const meetingTable = container.querySelector('table[id*="CLASS_MTG_VW"]');
if (!meetingTable) {
console.warn(APP_NAME, "未找到课程时间表");
return events;
}
// Parse each row of the meeting table
const rows = Array.from(meetingTable.querySelectorAll('tr'));
let currentComponent = ""; // Track current component
for (let i = 1; i < rows.length; i++) { // Skip header row
const row = rows[i];
const cells = Array.from(row.querySelectorAll('td'));
if (cells.length < 7) continue;
try {
const classNumber = cleanText(cells[0].textContent);
const section = cleanText(cells[1].textContent);
const component = cleanText(cells[2].textContent);
const dateTime = cleanText(cells[3].textContent);
const room = cleanText(cells[4].textContent);
const instructor = cleanText(cells[5].textContent);
const startEndDate = cleanText(cells[6].textContent);
// Update current component if not empty (handles continuation rows)
if (component) {
currentComponent = component;
}
// Skip rows without essential information
if (!dateTime && !startEndDate) continue;
// Parse the event
const event = parseScheduleRow({
courseCode: currentCourseCode,
courseName: currentCourseName,
classNumber,
section,
component: currentComponent,
dateTime,
room,
instructor,
startEndDate
});
if (event) {
events.push(event);
}
} catch (err) {
console.warn(APP_NAME, "解析课程行时出错:", err);
}
}
return events;
}
function parseScheduleRow(data) {
const { courseCode, courseName, classNumber, section, component, dateTime, room, instructor, startEndDate } = data;
// Parse date range
const dateRange = parseStartEndDate(startEndDate);
if (!dateRange) {
console.warn(APP_NAME, "无法解析日期范围:", startEndDate);
return null;
}
// Parse time and days
const timeInfo = parseDateTimeInfo(dateTime);
if (!timeInfo) {
console.warn(APP_NAME, "无法解析时间信息:", dateTime);
return null;
}
// Build event summary using course code + component (calendar-friendly format)
let summary = courseCode || "课程";
if (component) {
// Use more calendar-friendly format instead of square brackets
summary += ` - ${component}`;
}
if (section) {
summary += ` (${section})`;
}
return {
summary,
courseCode,
courseName,
component,
section,
classNumber,
location: room || "",
instructor: instructor || "",
days: timeInfo.days,
startTime: timeInfo.startTime,
endTime: timeInfo.endTime,
startDate: dateRange.start,
endDate: dateRange.end
};
}
function parseStartEndDate(dateStr) {
if (!dateStr) return null;
// Parse "15/09/2025 - 21/09/2025" format
// NOTE: The dates in PeopleSoft table only show the current week display range,
// not the actual course duration. We need to use the full semester range.
const match = dateStr.match(/(\d{1,2})\/(\d{1,2})\/(\d{4})\s*-\s*(\d{1,2})\/(\d{1,2})\/(\d{4})/);
if (!match) return null;
// Use the full academic semester range instead of the short display range
return {
start: ACADEMIC_CALENDAR_2025_2026.semesterStart,
end: ACADEMIC_CALENDAR_2025_2026.semesterEnd
};
}
function parseDateTimeInfo(timeStr) {
if (!timeStr) return null;
// Parse "星期一 2:00PM - 3:50PM" format
const match = timeStr.match(/星期([一二三四五六日])\s+(\d+):(\d+)(AM|PM)\s*-\s*(\d+):(\d+)(AM|PM)/);
if (!match) return null;
const [, dayChar, startHour, startMin, startAmPm, endHour, endMin, endAmPm] = match;
// Convert Chinese day to number (0 = Sunday, 1 = Monday, etc.)
const dayMap = { '日': 0, '一': 1, '二': 2, '三': 3, '四': 4, '五': 5, '六': 6 };
const dayOfWeek = dayMap[dayChar];
if (dayOfWeek === undefined) return null;
// Convert 12-hour to 24-hour format
let startHour24 = parseInt(startHour);
let endHour24 = parseInt(endHour);
if (startAmPm === 'PM' && startHour24 !== 12) startHour24 += 12;
if (startAmPm === 'AM' && startHour24 === 12) startHour24 = 0;
if (endAmPm === 'PM' && endHour24 !== 12) endHour24 += 12;
if (endAmPm === 'AM' && endHour24 === 12) endHour24 = 0;
return {
days: [dayOfWeek],
startTime: { hour: startHour24, minute: parseInt(startMin) },
endTime: { hour: endHour24, minute: parseInt(endMin) }
};
}
function detectTermTitle(doc) {
const titleCandidates = [
...Array.from(doc.querySelectorAll("h1, h2, h3, .PATRANSACTIONTITLE, .PTTEXT, .ps_pageheader")),
];
for (const el of titleCandidates) {
const t = cleanText(el.textContent);
if (!t) continue;
if (/学期|学年|Term|Session|课程表/i.test(t)) {
return t;
}
}
const title = (doc.title || "").trim();
if (title) return title;
return "我的课程表";
}
/**
* Academic calendar helper functions
*/
function isHoliday(date) {
for (const holiday of ACADEMIC_CALENDAR_2025_2026.holidays) {
if (isDateInRange(date, holiday.start, holiday.end)) {
return true;
}
}
return false;
}
function isMakeupClassDay(date) {
for (const makeup of ACADEMIC_CALENDAR_2025_2026.makeupClasses) {
if (isSameDate(date, makeup.date)) {
return makeup;
}
}
return null;
}
function isSpecialEvent(date) {
for (const event of ACADEMIC_CALENDAR_2025_2026.specialEvents) {
if (event.start && event.end) {
if (isDateInRange(date, event.start, event.end)) {
return event;
}
} else if (event.date) {
if (isSameDate(date, event.date)) {
return event;
}
}
}
return null;
}
function shouldSkipDate(date, targetDayOfWeek) {
// Skip if it's a holiday
if (isHoliday(date)) {
return true;
}
// Skip if it's a special no-class event
const specialEvent = isSpecialEvent(date);
if (specialEvent && specialEvent.type === 'no_class') {
return true;
}
return false;
}
function generateRRuleAndExceptions(event) {
// Generate RRULE with EXDATE for holidays and makeup classes
const startDate = event.startDate;
const endDate = event.endDate;
const targetDaysOfWeek = event.days;
// Calculate total weeks
const totalDays = Math.ceil((endDate - startDate) / (1000 * 60 * 60 * 24));
const totalWeeks = Math.ceil(totalDays / 7);
// Find the first occurrence date
let firstOccurrence = new Date(startDate);
while (!targetDaysOfWeek.includes(firstOccurrence.getDay())) {
firstOccurrence.setDate(firstOccurrence.getDate() + 1);
}
// Generate all basic dates to find exceptions
const basicDates = [];
const exceptionDates = [];
const makeupEvents = [];
let currentDate = new Date(firstOccurrence);
let weekCount = 0;
while (currentDate <= endDate && weekCount < totalWeeks) {
const dayOfWeek = currentDate.getDay();
if (targetDaysOfWeek.includes(dayOfWeek)) {
basicDates.push(new Date(currentDate));
// Check if this date should be excluded (holiday)
if (shouldSkipDate(currentDate, dayOfWeek)) {
exceptionDates.push(new Date(currentDate));
}
// Move to next week
currentDate.setDate(currentDate.getDate() + 7);
weekCount++;
} else {
currentDate.setDate(currentDate.getDate() + 1);
}
}
// Find makeup classes
let checkDate = new Date(startDate);
while (checkDate <= endDate) {
const makeupClass = isMakeupClassDay(checkDate);
if (makeupClass && targetDaysOfWeek.includes(makeupClass.originalDay)) {
makeupEvents.push({
date: new Date(checkDate),
originalDay: makeupClass.originalDay,
note: `补${getChineseDayName(makeupClass.originalDay)}的课`
});
}
checkDate.setDate(checkDate.getDate() + 1);
}
return {
firstOccurrence,
weekCount: Math.max(1, weekCount),
dayOfWeek: firstOccurrence.getDay(),
exceptionDates,
makeupEvents
};
}
function getDayName(dayOfWeek) {
const days = ['SU', 'MO', 'TU', 'WE', 'TH', 'FR', 'SA'];
return days[dayOfWeek];
}
function getChineseDayName(dayOfWeek) {
const names = ['日', '一', '二', '三', '四', '五', '六'];
return names[dayOfWeek];
}
/**
* Build ICS text from parsed data
*/
function buildICS(parsed) {
const lines = [];
const now = new Date();
const dtstamp = toUTCStringBasic(now);
lines.push("BEGIN:VCALENDAR");
lines.push("PRODID:-//" + APP_NAME + "//EN");
lines.push("VERSION:2.0");
lines.push("CALSCALE:GREGORIAN");
// Add timezone definition
lines.push("BEGIN:VTIMEZONE");
lines.push("TZID:" + TZID);
lines.push("BEGIN:STANDARD");
lines.push("DTSTART:19700101T000000");
lines.push("TZOFFSETFROM:+0800");
lines.push("TZOFFSETTO:+0800");
lines.push("TZNAME:CST");
lines.push("END:STANDARD");
lines.push("END:VTIMEZONE");
// Group events by unique course to reduce file size
// Use base course info without section to avoid duplicates
const eventGroups = new Map();
for (const ev of parsed.events) {
// Build base summary without section for grouping
let baseSummary = ev.courseCode || "课程";
if (ev.component) {
baseSummary += ` - ${ev.component}`;
}
// Don't include section in grouping key to merge similar courses
const groupKey = `${baseSummary}|${ev.location}|${ev.instructor}|${ev.days.join(',')}`;
if (!eventGroups.has(groupKey)) {
eventGroups.set(groupKey, []);
}
eventGroups.get(groupKey).push(ev);
}
console.log(APP_NAME, `将 ${parsed.events.length} 个事件分组为 ${eventGroups.size} 组`);
// Process each group using RRULE + EXDATE
for (const [groupKey, events] of eventGroups) {
// Prefer events with section info (more specific) over those without
const representativeEvent = events.find(ev => ev.section) || events[0];
// Generate RRULE and exceptions
const rruleData = generateRRuleAndExceptions(representativeEvent);
console.log(APP_NAME, `课程 "${representativeEvent.summary}": ${rruleData.weekCount} 周, ${rruleData.exceptionDates.length} 个例外, ${rruleData.makeupEvents.length} 个补课`);
// Create main recurring event
const dtStart = combineDateAndTime(rruleData.firstOccurrence, representativeEvent.startTime);
const dtEnd = combineDateAndTime(rruleData.firstOccurrence, representativeEvent.endTime);
lines.push("BEGIN:VEVENT");
lines.push("UID:" + buildUID(representativeEvent, now, 0));
lines.push("DTSTAMP:" + dtstamp + "Z");
lines.push("DTSTART;TZID=" + TZID + ":" + toLocalStringBasic(dtStart));
lines.push("DTEND;TZID=" + TZID + ":" + toLocalStringBasic(dtEnd));
// Add RRULE
const dayName = getDayName(rruleData.dayOfWeek);
lines.push(`RRULE:FREQ=WEEKLY;COUNT=${rruleData.weekCount};BYDAY=${dayName}`);
// Add EXDATE for holidays
if (rruleData.exceptionDates.length > 0) {
const exdates = rruleData.exceptionDates
.map(date => toLocalStringBasic(combineDateAndTime(date, representativeEvent.startTime)))
.join(",");
lines.push(`EXDATE;TZID=${TZID}:${exdates}`);
}
lines.push("SUMMARY:" + escapeICSText(representativeEvent.summary));
if (representativeEvent.location) {
lines.push("LOCATION:" + escapeICSText(representativeEvent.location));
}
// Compact description
let desc = [];
if (representativeEvent.component) desc.push(`类型: ${representativeEvent.component}`);
if (representativeEvent.instructor) desc.push(`讲师: ${representativeEvent.instructor}`);
if (desc.length > 0) {
lines.push("DESCRIPTION:" + escapeICSText(desc.join("\n")));
}
lines.push("END:VEVENT");
// Add makeup events as separate events
for (let i = 0; i < rruleData.makeupEvents.length; i++) {
const makeupEvent = rruleData.makeupEvents[i];
const makeupStart = combineDateAndTime(makeupEvent.date, representativeEvent.startTime);
const makeupEnd = combineDateAndTime(makeupEvent.date, representativeEvent.endTime);
lines.push("BEGIN:VEVENT");
lines.push("UID:" + buildUID(representativeEvent, now, `makeup-${i}`));
lines.push("DTSTAMP:" + dtstamp + "Z");
lines.push("DTSTART;TZID=" + TZID + ":" + toLocalStringBasic(makeupStart));
lines.push("DTEND;TZID=" + TZID + ":" + toLocalStringBasic(makeupEnd));
lines.push("SUMMARY:" + escapeICSText(representativeEvent.summary + " (调课)"));
if (representativeEvent.location) {
lines.push("LOCATION:" + escapeICSText(representativeEvent.location));
}
let makeupDesc = [];
if (representativeEvent.component) makeupDesc.push(`类型: ${representativeEvent.component}`);
if (representativeEvent.instructor) makeupDesc.push(`讲师: ${representativeEvent.instructor}`);
makeupDesc.push(`注: ${makeupEvent.note}`);
lines.push("DESCRIPTION:" + escapeICSText(makeupDesc.join("\n")));
lines.push("END:VEVENT");
}
}
// Add special events (holidays, campus activities) - simplified
addSpecialEventsToICS(lines, now, dtstamp);
lines.push("END:VCALENDAR");
console.log(APP_NAME, `生成的 ICS 内容长度: ${lines.join('\r\n').length} 字符`);
return lines.join("\r\n");
}
function addSpecialEventsToICS(lines, now, dtstamp) {
// Only add the most important events to keep file small
const importantEvents = [
{ date: "2025-08-24", name: "本科生开学典礼" },
{ date: "2025-09-15", name: "秋冬学期课程开始" },
{ date: "2025-12-26", name: "课程结束" },
{ date: "2025-12-31", name: "浙江大学学生节" }
];
for (const event of importantEvents) {
lines.push("BEGIN:VEVENT");
lines.push("UID:" + event.name.replace(/\s/g, '') + "@ps-calendar");
lines.push("DTSTAMP:" + dtstamp + "Z");
lines.push("DTSTART;VALUE=DATE:" + event.date.replace(/-/g, ''));
lines.push("SUMMARY:" + escapeICSText(event.name));
lines.push("TRANSP:TRANSPARENT");
lines.push("END:VEVENT");
}
}
function buildUID(ev, now, index = 0) {
const base = [
ev.courseCode || ev.summary,
ev.component || "",
ev.section || "",
ev.location,
ev.instructor,
ev.days.join(""),
index.toString()
].filter(Boolean).join("-");
const hash = simpleHash(base);
const timestamp = Math.floor(now.getTime() / 1000);
return `${hash}-${timestamp}@${HOST_HINT}`;
}
function buildSpecialEventUID(event, now, date = null) {
const base = [
event.name,
event.type || "",
date ? toDateString(date) : toDateString(event.date || event.start)
].filter(Boolean).join("-");
const hash = simpleHash(base);
const timestamp = Math.floor(now.getTime() / 1000);
return `special-${hash}-${timestamp}@${HOST_HINT}`;
}
function buildSuggestedFileName(parsed) {
const termPart = parsed.termTitle || "课程表";
const now = new Date();
const datePart = `${now.getFullYear()}-${(now.getMonth() + 1).toString().padStart(2, '0')}-${now.getDate().toString().padStart(2, '0')}`;
return `${termPart}-${datePart}.ics`;
}
function triggerDownload(content, filename) {
const blob = new Blob([content], { type: "text/calendar;charset=utf-8" });
const url = URL.createObjectURL(blob);
const a = document.createElement("a");
a.href = url;
a.download = filename;
a.click();
URL.revokeObjectURL(url);
}
// Helper functions
function cleanText(text) {
return (text || "").replace(/\s+/g, " ").trim();
}
function combineDateAndTime(date, time) {
const result = new Date(date);
if (!time || typeof time !== 'object') {
console.error(APP_NAME, "Invalid time object:", time);
return result;
}
const hour = time.hour !== undefined ? time.hour : time.h;
const minute = time.minute !== undefined ? time.minute : time.m;
if (hour === undefined || minute === undefined || isNaN(hour) || isNaN(minute)) {
console.error(APP_NAME, "Invalid time values:", { hour, minute, originalTime: time });
return result;
}
result.setHours(Number(hour), Number(minute), 0, 0);
return result;
}
function toLocalStringBasic(date) {
return date.getFullYear() +
(date.getMonth() + 1).toString().padStart(2, '0') +
date.getDate().toString().padStart(2, '0') + 'T' +
date.getHours().toString().padStart(2, '0') +
date.getMinutes().toString().padStart(2, '0') +
date.getSeconds().toString().padStart(2, '0');
}
function toUTCStringBasic(date) {
return date.getUTCFullYear() +
(date.getUTCMonth() + 1).toString().padStart(2, '0') +
date.getUTCDate().toString().padStart(2, '0') + 'T' +
date.getUTCHours().toString().padStart(2, '0') +
date.getUTCMinutes().toString().padStart(2, '0') +
date.getUTCSeconds().toString().padStart(2, '0');
}
function toDateString(date) {
return date.getFullYear() +
(date.getMonth() + 1).toString().padStart(2, '0') +
date.getDate().toString().padStart(2, '0');
}
function foldLine(text) {
// ICS line folding: max 75 octets per line
if (!text) return "";
// Escape special characters for better calendar compatibility
text = escapeICSText(text);
const maxLen = 73; // Leave room for CRLF
if (text.length <= maxLen) return text;
const lines = [];
let pos = 0;
while (pos < text.length) {
if (pos === 0) {
lines.push(text.substring(pos, pos + maxLen));
pos += maxLen;
} else {
lines.push(" " + text.substring(pos, pos + maxLen - 1));
pos += maxLen - 1;
}
}
return lines.join("\r\n");
}
function escapeICSText(text) {
if (!text) return "";
// RFC 5545 compliant text escaping
return text
.replace(/\\/g, "\\\\") // Escape backslashes first
.replace(/,/g, "\\,") // Escape commas
.replace(/;/g, "\\;") // Escape semicolons
.replace(/\n/g, "\\n") // Escape newlines
.replace(/\r/g, ""); // Remove carriage returns
}
function formatDescription(parts) {
if (!parts || parts.length === 0) return "";
return parts.join("\n");
}
function simpleHash(str) {
let hash = 0;
for (let i = 0; i < str.length; i++) {
const char = str.charCodeAt(i);
hash = ((hash << 5) - hash) + char;
hash = hash & hash; // Convert to 32-bit integer
}
return Math.abs(hash).toString(36);
}
function isSameDate(date1, date2) {
return date1.getFullYear() === date2.getFullYear() &&
date1.getMonth() === date2.getMonth() &&
date1.getDate() === date2.getDate();
}
function isDateInRange(date, start, end) {
return date >= start && date <= end;
}
// Start the script
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", bootstrap);
} else {
bootstrap();
}
})();