cal.pub0.org/lib/events/EventManager.ts

342 lines
10 KiB
TypeScript

import { Credential, DestinationCalendar } from "@prisma/client";
import async from "async";
import merge from "lodash/merge";
import { v5 as uuidv5 } from "uuid";
import { AdditionInformation, CalendarEvent, createEvent, updateEvent } from "@lib/calendarClient";
import { FAKE_DAILY_CREDENTIAL } from "@lib/integrations/Daily/DailyVideoApiAdapter";
import { LocationType } from "@lib/location";
import prisma from "@lib/prisma";
import { Ensure } from "@lib/types/utils";
import { createMeeting, updateMeeting, VideoCallData } from "@lib/videoClient";
export type Event = AdditionInformation & VideoCallData;
export interface EventResult {
type: string;
success: boolean;
uid: string;
createdEvent?: Event;
updatedEvent?: Event;
originalEvent: CalendarEvent;
}
export interface CreateUpdateResult {
results: Array<EventResult>;
referencesToCreate: Array<PartialReference>;
}
export interface PartialBooking {
id: number;
references: Array<PartialReference>;
}
export interface PartialReference {
id?: number;
type: string;
uid: string;
meetingId?: string | null;
meetingPassword?: string | null;
meetingUrl?: string | null;
}
export const isZoom = (location: string): boolean => {
return location === "integrations:zoom";
};
export const isDaily = (location: string): boolean => {
return location === "integrations:daily";
};
export const isDedicatedIntegration = (location: string): boolean => {
return isZoom(location) || isDaily(location);
};
export const getLocationRequestFromIntegration = (location: string) => {
if (
location === LocationType.GoogleMeet.valueOf() ||
location === LocationType.Zoom.valueOf() ||
location === LocationType.Daily.valueOf()
) {
const requestId = uuidv5(location, uuidv5.URL);
return {
conferenceData: {
createRequest: {
requestId: requestId,
},
},
location,
};
}
return null;
};
export const processLocation = (event: CalendarEvent): CalendarEvent => {
// If location is set to an integration location
// Build proper transforms for evt object
// Extend evt object with those transformations
if (event.location?.includes("integration")) {
const maybeLocationRequestObject = getLocationRequestFromIntegration(event.location);
event = merge(event, maybeLocationRequestObject);
}
return event;
};
type EventManagerUser = {
credentials: Credential[];
destinationCalendar: DestinationCalendar | null;
};
export default class EventManager {
calendarCredentials: Credential[];
videoCredentials: Credential[];
/**
* Takes an array of credentials and initializes a new instance of the EventManager.
*
* @param credentials
*/
constructor(user: EventManagerUser) {
this.calendarCredentials = user.credentials.filter((cred) => cred.type.endsWith("_calendar"));
this.videoCredentials = user.credentials.filter((cred) => cred.type.endsWith("_video"));
//for Daily.co video, temporarily pushes a credential for the daily-video-client
const hasDailyIntegration = process.env.DAILY_API_KEY;
if (hasDailyIntegration) {
this.videoCredentials.push(FAKE_DAILY_CREDENTIAL);
}
}
/**
* Takes a CalendarEvent and creates all necessary integration entries for it.
* When a video integration is chosen as the event's location, a video integration
* event will be scheduled for it as well.
*
* @param event
*/
public async create(event: Ensure<CalendarEvent, "language">): Promise<CreateUpdateResult> {
const evt = processLocation(event);
const isDedicated = evt.location ? isDedicatedIntegration(evt.location) : null;
const results: Array<EventResult> = [];
// If and only if event type is a dedicated meeting, create a dedicated video meeting.
if (isDedicated) {
const result = await this.createVideoEvent(evt);
if (result.createdEvent) {
evt.videoCallData = result.createdEvent;
}
results.push(result);
}
// Create the calendar event with the proper video call data
results.push(...(await this.createAllCalendarEvents(evt)));
const referencesToCreate: Array<PartialReference> = results.map((result: EventResult) => {
return {
type: result.type,
uid: result.createdEvent?.id.toString() ?? "",
meetingId: result.createdEvent?.id.toString(),
meetingPassword: result.createdEvent?.password,
meetingUrl: result.createdEvent?.url,
};
});
return {
results,
referencesToCreate,
};
}
/**
* Takes a calendarEvent and a rescheduleUid and updates the event that has the
* given uid using the data delivered in the given CalendarEvent.
*
* @param event
*/
public async update(
event: Ensure<CalendarEvent, "language">,
rescheduleUid: string
): Promise<CreateUpdateResult> {
const evt = processLocation(event);
if (!rescheduleUid) {
throw new Error("You called eventManager.update without an `rescheduleUid`. This should never happen.");
}
// Get details of existing booking.
const booking = await prisma.booking.findFirst({
where: {
uid: rescheduleUid,
},
select: {
id: true,
references: {
select: {
id: true,
type: true,
uid: true,
meetingId: true,
meetingPassword: true,
meetingUrl: true,
},
},
destinationCalendar: true,
},
});
if (!booking) {
throw new Error("booking not found");
}
const isDedicated = evt.location ? isDedicatedIntegration(evt.location) : null;
const results: Array<EventResult> = [];
// If and only if event type is a dedicated meeting, update the dedicated video meeting.
if (isDedicated) {
const result = await this.updateVideoEvent(evt, booking);
if (result.updatedEvent) {
evt.videoCallData = result.updatedEvent;
evt.location = result.updatedEvent.url;
}
results.push(result);
}
// Update all calendar events.
results.push(...(await this.updateAllCalendarEvents(evt, booking)));
// Now we can delete the old booking and its references.
const bookingReferenceDeletes = prisma.bookingReference.deleteMany({
where: {
bookingId: booking.id,
},
});
const attendeeDeletes = prisma.attendee.deleteMany({
where: {
bookingId: booking.id,
},
});
const bookingDeletes = prisma.booking.delete({
where: {
id: booking.id,
},
});
// Wait for all deletions to be applied.
await Promise.all([bookingReferenceDeletes, attendeeDeletes, bookingDeletes]);
return {
results,
referencesToCreate: [...booking.references],
};
}
/**
* Creates event entries for all calendar integrations given in the credentials.
* When noMail is true, no mails will be sent. This is used when the event is
* a video meeting because then the mail containing the video credentials will be
* more important than the mails created for these bare calendar events.
*
* When the optional uid is set, it will be used instead of the auto generated uid.
*
* @param event
* @param noMail
* @private
*/
private async createAllCalendarEvents(event: CalendarEvent): Promise<Array<EventResult>> {
/** Can I use destinationCalendar here? */
/* How can I link a DC to a cred? */
if (event.destinationCalendar) {
const destinationCalendarCredentials = this.calendarCredentials.filter(
(c) => c.type === event.destinationCalendar?.integration
);
return Promise.all(destinationCalendarCredentials.map(async (c) => await createEvent(c, event)));
}
const [credential] = this.calendarCredentials;
if (!credential) {
return [];
}
return [await createEvent(credential, event)];
}
/**
* Checks which video integration is needed for the event's location and returns
* credentials for that - if existing.
* @param event
* @private
*/
private getVideoCredential(event: CalendarEvent): Credential | undefined {
if (!event.location) {
return undefined;
}
const integrationName = event.location.replace("integrations:", "");
return this.videoCredentials.find((credential: Credential) => credential.type.includes(integrationName));
}
/**
* Creates a video event entry for the selected integration location.
*
* When optional uid is set, it will be used instead of the auto generated uid.
*
* @param event
* @private
*/
private createVideoEvent(event: Ensure<CalendarEvent, "language">): Promise<EventResult> {
const credential = this.getVideoCredential(event);
if (credential) {
return createMeeting(credential, event);
} else {
return Promise.reject("No suitable credentials given for the requested integration name.");
}
}
/**
* Updates the event entries for all calendar integrations given in the credentials.
* When noMail is true, no mails will be sent. This is used when the event is
* a video meeting because then the mail containing the video credentials will be
* more important than the mails created for these bare calendar events.
*
* @param event
* @param booking
* @private
*/
private updateAllCalendarEvents(
event: CalendarEvent,
booking: PartialBooking
): Promise<Array<EventResult>> {
return async.mapLimit(this.calendarCredentials, 5, async (credential: Credential) => {
const bookingRefUid = booking
? booking.references.filter((ref) => ref.type === credential.type)[0]?.uid
: null;
return updateEvent(credential, event, bookingRefUid);
});
}
/**
* Updates a single video event.
*
* @param event
* @param booking
* @private
*/
private updateVideoEvent(event: CalendarEvent, booking: PartialBooking) {
const credential = this.getVideoCredential(event);
if (credential) {
const bookingRef = booking ? booking.references.filter((ref) => ref.type === credential.type)[0] : null;
return updateMeeting(credential, event, bookingRef);
} else {
return Promise.reject("No suitable credentials given for the requested integration name.");
}
}
}