Create `generateIcsString` function
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import type { DateArray } from "ics";
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import { createEvent } from "ics";
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import { RRule } from "rrule";
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import dayjs from "@calcom/dayjs";
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import { getRichDescription } from "@calcom/lib/CalEventParser";
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import type { CalendarEvent, Person } from "@calcom/types/Calendar";
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const generateIcsString = ({
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event,
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recipient,
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role,
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}: {
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event: CalendarEvent;
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recipient: Person;
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role: "attendee" | "organizer";
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}) => {
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const t = recipient.language.translate;
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// Taking care of recurrence rule
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let recurrenceRule: string | undefined = undefined;
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if (event.recurringEvent?.count) {
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// ics appends "RRULE:" already, so removing it from RRule generated string
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recurrenceRule = new RRule(event.recurringEvent).toString().replace("RRULE:", "");
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}
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const getTextBody = (title = "", subtitle = "emailed_you_and_any_other_attendees"): string => {
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if (!title) {
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if (role === "organizer") {
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title = event.recurringEvent?.count ? "new_event_scheduled_recurring" : "new_event_scheduled";
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}
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if (role === "attendee") {
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title = event.recurringEvent?.count
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? "your_event_has_been_scheduled_recurring"
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: "your_event_has_been_scheduled";
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}
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}
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return `
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${t(title)}
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${t(subtitle)}
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${getRichDescription(event, t)}
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`.trim();
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};
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const icsEvent = createEvent({
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uid: event.iCalUID || event.uid!,
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sequence: event.iCalSequence || 0,
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start: dayjs(event.startTime)
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.utc()
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.toArray()
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.slice(0, 6)
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.map((v, i) => (i === 1 ? v + 1 : v)) as DateArray,
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startInputType: "utc",
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productId: "calcom/ics",
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title: event.title,
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description: getTextBody(),
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duration: { minutes: dayjs(event.endTime).diff(dayjs(event.startTime), "minute") },
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organizer: { name: event.organizer.name, email: event.organizer.email },
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...{ recurrenceRule },
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attendees: [
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...event.attendees.map((attendee: Person) => ({
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name: attendee.name,
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email: attendee.email,
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})),
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...(event.team?.members
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? event.team?.members.map((member: Person) => ({
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name: member.name,
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email: member.email,
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}))
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: []),
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],
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status: "CONFIRMED",
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});
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if (icsEvent.error) {
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throw icsEvent.error;
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}
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return icsEvent.value;
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};
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export default generateIcsString;
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