removed previous ics package to add additionaly functionality

Author: mckeenicholas

package.json

@@ -24,7 +24,6 @@
     "clsx": "^1.1.1",
     "country-flag-icons": "^1.5.4",
     "date-fns": "^2.30.0",
-    "ics": "^3.5.0",
     "lodash.flatmap": "^4.5.0",
     "lodash.flatten": "^4.4.0",
     "react": "^18.2.0",

src/lib/utils.ts

@@ -7,7 +7,6 @@ import {
   formatMultiResult,
 } from '@wca/helpers';
 import { format, parseISO } from 'date-fns';
-import * as ics from 'ics';
 
 export const byName = (a: { name: string }, b: { name: string }) => a.name.localeCompare(b.name);
 export const byDate = <T>(a: T & { startTime: string }, b: T & { startTime: string }) =>
@@ -160,19 +159,40 @@ const AssignmentCodeDescription = {
   competitor: 'Competing in:',
 };
 
+function escapeCommas(input) {
+  return input.replace(/,/g, '\\,');
+}
+
+function icsFormatDate(date) {
+  const year = date.getUTCFullYear();
+  const month = date.getUTCMonth() + 1;
+  const day = date.getUTCDate();
+  const hours = date.getUTCHours();
+  const minutes = date.getUTCMinutes();
+  const seconds = date.getUTCSeconds();
+
+  return `${year}${month.toString().padStart(2, '0')}${day.toString().padStart(2, '0')}T${hours
+    .toString()
+    .padStart(2, '0')}${minutes.toString().padStart(2, '0')}${seconds
+    .toString()
+    .padStart(2, '0')}Z`;
+}
+
 export const generateIcs = (assignments, wcif, fileName: string) => {
+  console.log(assignments);
+
   if (!assignments) {
     //Check if assignments is empty
     return;
   }
 
-  let events: {
-    title: string;
-    description: string;
-    location: string;
-    start: ics.DateArray;
-    end: ics.DateArray;
-  }[] = [];
+  let icalFile = `BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:CompetitionGroups
+METHOD:PUBLISH
+X-PUBLISHED-TTL:PT1H
+`;
 
   assignments.forEach((item) => {
     const titleFormatted = `${AssignmentCodeDescription[item.assignmentCode]} ${
@@ -181,46 +201,36 @@ export const generateIcs = (assignments, wcif, fileName: string) => {
     const startDate = new Date(item.activity.startTime);
     const endDate = new Date(item.activity.endTime);
 
-    const startDateArray: ics.DateArray = [
-      startDate.getFullYear(),
-      startDate.getMonth() + 1, // Months are 1-indexed in ics format
-      startDate.getDate(),
-      startDate.getHours(),
-      startDate.getMinutes(),
-    ];
-
-    const endDateArray: ics.DateArray = [
-      endDate.getFullYear(),
-      endDate.getMonth() + 1,
-      endDate.getDate(),
-      endDate.getHours(),
-      endDate.getMinutes(),
-    ];
-
-    const location = {
-      lat: wcif.schedule.venues[0].latitudeMicrodegrees / 100,
-      lon: wcif.schedule.venues[0].longitudeMicrodegrees / 100,
-    };
-
-    const icalEvent = {
-      title: titleFormatted,
-      description: item.activity.name,
-      location: item.activity.parent.room.name,
-      ...(wcif.schedule.venues.length > 1 ? {} : { geo: location }),
-      start: startDateArray,
-      end: endDateArray,
-    };
-
-    events.push(icalEvent);
+    console.log(wcif.schedule);
+
+    let location = '';
+    if (wcif.schedule.venues.length === 1) {
+      location = `GEO: ${wcif.schedule.venues[0].latitudeMicrodegrees / 1000000}; ${
+        wcif.schedule.venues[0].longitudeMicrodegrees / 1000000
+      }\n`;
+    }
+
+    icalFile += `BEGIN:VEVENT
+UID:${item.activity.id}${item.activity.activityCode}
+DTSTAMP:${icsFormatDate(new Date())}
+SUMMARY:${titleFormatted}
+DESCRIPTION:${item.activity.name}
+LOCATION:${item.activity.parent.room.name}
+DTSTART:${icsFormatDate(startDate)}
+DTEND:${icsFormatDate(endDate)}
+${location}END:VEVENT
+BEGIN:VALARM
+TRIGGER:-PT5M
+DURATION:PT5M
+ACTION:DISPLAY
+DESCRIPTION:${item.activity.name}
+END:VALARM
+`;
   });
 
-  const { error, value } = ics.createEvents(events);
-
-  if (error || !value) {
-    throw new Error('Failed to create ICS events');
-  }
+  icalFile += 'END:VCALENDAR';
 
-  const blob = new Blob([value], { type: 'text/calendar' });
+  const blob = new Blob([escapeCommas(icalFile)], { type: 'text/calendar' });
   const a = document.createElement('a');
   a.href = URL.createObjectURL(blob);
   a.download = fileName;