Merge pull request #277 from Nico-J/feature/zoom-integration

Zoom integration and major architecture upgrades

.env.example

@@ -9,6 +9,10 @@ NEXT_PUBLIC_TELEMETRY_KEY=js.2pvs2bbpqq1zxna97wcml.oi2jzirnbj1ev4tc57c5r
 MS_GRAPH_CLIENT_ID=
 MS_GRAPH_CLIENT_SECRET=
 
+# Used for the Zoom integration
+ZOOM_CLIENT_ID=
+ZOOM_CLIENT_SECRET=
+
 # E-mail settings
 
 # Calendso uses nodemailer (@see https://nodemailer.com/about/) to provide email sending. As such we are trying to

README.md

@@ -196,6 +196,30 @@ Contributions are what make the open source community such an amazing place to b
 5. Use **Application (client) ID** as the **MS_GRAPH_CLIENT_ID** attribute value in .env
 6. Click **Certificates & secrets** create a new client secret and use the value as the **MS_GRAPH_CLIENT_SECRET** attriubte
 
+## Obtaining Zoom Client ID and Secret
+1. Open [Zoom Marketplace](https://marketplace.zoom.us/) and sign in with your Zoom account.
+2. On the upper right, click "Develop" => "Build App".
+3. On "OAuth", select "Create".
+4. Name your App.
+5. Choose "Account-level app" as the app type.
+6. De-select the option to publish the app on the Zoom App Marketplace.
+7. Click "Create".
+8. Now copy the Client ID and Client Secret to your .env file into the `ZOOM_CLIENT_ID` and `ZOOM_CLIENT_SECRET` fields.
+4. Set the Redirect URL for OAuth `<CALENDSO URL>/api/integrations/zoomvideo/callback` replacing CALENDSO URL with the URI at which your application runs.
+5. Also add the redirect URL given above as a whitelist URL and enable "Subdomain check". Make sure, it says "saved" below the form.
+7. You don't need to provide basic information about your app. Instead click at "Scopes" and then at "+ Add Scopes". Search for and check the following scopes:
+   1. account:master
+   2. account:read:admin
+   3. account:write:admin
+   4. meeting:master
+   5. meeting:read:admin
+   6. meeting:write:admin
+   7. user:master
+   8. user:read:admin
+   9. user:write:admin
+8. Click "Done".
+9. You're good to go. Now you can easily add your Zoom integration in the Calendso settings.
+
 <!-- LICENSE -->
 ## License
 

components/ActiveLink.tsx

@@ -1,6 +1,6 @@
-import { useRouter } from 'next/router'
+import {useRouter} from 'next/router'
 import Link from 'next/link'
-import React, { Children } from 'react'
+import React, {Children} from 'react'
 
 const ActiveLink = ({ children, activeClassName, ...props }) => {
   const { asPath } = useRouter()

components/Settings.tsx

@@ -1,5 +1,5 @@
 import ActiveLink from '../components/ActiveLink';
-import { UserCircleIcon, KeyIcon, CodeIcon, UserGroupIcon, CreditCardIcon } from '@heroicons/react/outline';
+import {CodeIcon, CreditCardIcon, KeyIcon, UserCircleIcon, UserGroupIcon} from '@heroicons/react/outline';
 
 export default function SettingsShell(props) {
     return (

lib/calendarClient.ts

@@ -1,5 +1,13 @@
+import EventOrganizerMail from "./emails/EventOrganizerMail";
+import EventAttendeeMail from "./emails/EventAttendeeMail";
+import {v5 as uuidv5} from 'uuid';
+import short from 'short-uuid';
+import EventOrganizerRescheduledMail from "./emails/EventOrganizerRescheduledMail";
+import EventAttendeeRescheduledMail from "./emails/EventAttendeeRescheduledMail";
+
+const translator = short();
+
 const {google} = require('googleapis');
-import createNewEventEmail from "./emails/new-event";
 
 const googleAuth = () => {
   const {client_secret, client_id, redirect_uris} = JSON.parse(process.env.GOOGLE_API_CREDENTIALS).web;
@@ -370,7 +378,7 @@ const calendars = (withCredentials): CalendarApiAdapter[] => withCredentials.map
   }
 }).filter(Boolean);
 
-const getBusyTimes = (withCredentials, dateFrom, dateTo, selectedCalendars) => Promise.all(
+const getBusyCalendarTimes = (withCredentials, dateFrom, dateTo, selectedCalendars) => Promise.all(
     calendars(withCredentials).map(c => c.getAvailability(dateFrom, dateTo, selectedCalendars))
 ).then(
     (results) => {
@@ -384,25 +392,42 @@ const listCalendars = (withCredentials) => Promise.all(
   (results) => results.reduce((acc, calendars) => acc.concat(calendars), [])
 );
 
-const createEvent = (credential, calEvent: CalendarEvent): Promise<any> => {
+const createEvent = async (credential, calEvent: CalendarEvent): Promise<any> => {
+  const uid: string = translator.fromUUID(uuidv5(JSON.stringify(calEvent), uuidv5.URL));
 
-    createNewEventEmail(
+  const creationResult = credential ? await calendars([credential])[0].createEvent(calEvent) : null;
-        calEvent,
-    );
 
-    if (credential) {
+  const organizerMail = new EventOrganizerMail(calEvent, uid);
-        return calendars([credential])[0].createEvent(calEvent);
+  const attendeeMail = new EventAttendeeMail(calEvent, uid);
+  await organizerMail.sendEmail();
+
+  if (!creationResult || !creationResult.disableConfirmationEmail) {
+    await attendeeMail.sendEmail();
   }
 
-    return Promise.resolve({});
+  return {
+    uid,
+    createdEvent: creationResult
+  };
 };
 
-const updateEvent = (credential, uid: String, calEvent: CalendarEvent): Promise<any> => {
+const updateEvent = async (credential, uidToUpdate: String, calEvent: CalendarEvent): Promise<any> => {
-    if (credential) {
+  const newUid: string = translator.fromUUID(uuidv5(JSON.stringify(calEvent), uuidv5.URL));
-        return calendars([credential])[0].updateEvent(uid, calEvent);
+
+  const updateResult = credential ? await calendars([credential])[0].updateEvent(uidToUpdate, calEvent) : null;
+
+  const organizerMail = new EventOrganizerRescheduledMail(calEvent, newUid);
+  const attendeeMail = new EventAttendeeRescheduledMail(calEvent, newUid);
+  await organizerMail.sendEmail();
+
+  if (!updateResult || !updateResult.disableConfirmationEmail) {
+    await attendeeMail.sendEmail();
   }
 
-    return Promise.resolve({});
+  return {
+    uid: newUid,
+    updatedEvent: updateResult
+  };
 };
 
 const deleteEvent = (credential, uid: String): Promise<any> => {
@@ -413,4 +438,4 @@ const deleteEvent = (credential, uid: String): Promise<any> => {
   return Promise.resolve({});
 };
 
-export {getBusyTimes, createEvent, updateEvent, deleteEvent, CalendarEvent, listCalendars, IntegrationCalendar};
+export {getBusyCalendarTimes, createEvent, updateEvent, deleteEvent, CalendarEvent, listCalendars, IntegrationCalendar};

lib/emails/EventAttendeeMail.ts

@@ -0,0 +1,55 @@
+import dayjs, {Dayjs} from "dayjs";
+import EventMail from "./EventMail";
+
+export default class EventAttendeeMail extends EventMail {
+  /**
+   * Returns the email text as HTML representation.
+   *
+   * @protected
+   */
+  protected getHtmlRepresentation(): string {
+    return `
+    <div>
+      Hi ${this.calEvent.attendees[0].name},<br />
+      <br />
+      Your ${this.calEvent.type} with ${this.calEvent.organizer.name} at ${this.getInviteeStart().format('h:mma')} 
+      (${this.calEvent.attendees[0].timeZone}) on ${this.getInviteeStart().format('dddd, LL')} is scheduled.<br />
+      <br />` + this.getAdditionalBody() + (
+        this.calEvent.location ? `<strong>Location:</strong> ${this.calEvent.location}<br /><br />` : ''
+      ) +
+      `<strong>Additional notes:</strong><br />
+      ${this.calEvent.description}<br />
+      ` + this.getAdditionalFooter() + `
+    </div>
+  `;
+  }
+
+  /**
+   * Returns the payload object for the nodemailer.
+   *
+   * @protected
+   */
+  protected getNodeMailerPayload(): Object {
+    return {
+      to: `${this.calEvent.attendees[0].name} <${this.calEvent.attendees[0].email}>`,
+      from: `${this.calEvent.organizer.name} <${this.getMailerOptions().from}>`,
+      replyTo: this.calEvent.organizer.email,
+      subject: `Confirmed: ${this.calEvent.type} with ${this.calEvent.organizer.name} on ${this.getInviteeStart().format('dddd, LL')}`,
+      html: this.getHtmlRepresentation(),
+      text: this.getPlainTextRepresentation(),
+    };
+  }
+
+  protected printNodeMailerError(error: string): void {
+    console.error("SEND_BOOKING_CONFIRMATION_ERROR", this.calEvent.attendees[0].email, error);
+  }
+
+  /**
+   * Returns the inviteeStart value used at multiple points.
+   *
+   * @private
+   */
+  protected getInviteeStart(): Dayjs {
+    return <Dayjs>dayjs(this.calEvent.startTime).tz(this.calEvent.attendees[0].timeZone);
+  }
+}

lib/emails/EventAttendeeRescheduledMail.ts

@@ -0,0 +1,40 @@
+import EventAttendeeMail from "./EventAttendeeMail";
+
+export default class EventAttendeeRescheduledMail extends EventAttendeeMail {
+  /**
+   * Returns the email text as HTML representation.
+   *
+   * @protected
+   */
+  protected getHtmlRepresentation(): string {
+    return `
+    <div>
+      Hi ${this.calEvent.attendees[0].name},<br />
+      <br />
+      Your ${this.calEvent.type} with ${this.calEvent.organizer.name} has been rescheduled to ${this.getInviteeStart().format('h:mma')} 
+      (${this.calEvent.attendees[0].timeZone}) on ${this.getInviteeStart().format('dddd, LL')}.<br />
+      ` + this.getAdditionalFooter() + `
+    </div>
+  `;
+  }
+
+  /**
+   * Returns the payload object for the nodemailer.
+   *
+   * @protected
+   */
+  protected getNodeMailerPayload(): Object {
+    return {
+      to: `${this.calEvent.attendees[0].name} <${this.calEvent.attendees[0].email}>`,
+      from: `${this.calEvent.organizer.name} <${this.getMailerOptions().from}>`,
+      replyTo: this.calEvent.organizer.email,
+      subject: `Rescheduled: ${this.calEvent.type} with ${this.calEvent.organizer.name} on ${this.getInviteeStart().format('dddd, LL')}`,
+      html: this.getHtmlRepresentation(),
+      text: this.getPlainTextRepresentation(),
+    };
+  }
+
+  protected printNodeMailerError(error: string): void {
+    console.error("SEND_RESCHEDULE_CONFIRMATION_ERROR", this.calEvent.attendees[0].email, error);
+  }
+}

lib/emails/EventMail.ts

@@ -0,0 +1,135 @@
+import {CalendarEvent} from "../calendarClient";
+import {serverConfig} from "../serverConfig";
+import nodemailer from 'nodemailer';
+
+export default abstract class EventMail {
+  calEvent: CalendarEvent;
+  uid: string;
+
+  /**
+   * An EventMail always consists of a CalendarEvent
+   * that stores the very basic data of the event (like date, title etc).
+   * It also needs the UID of the stored booking in our database.
+   *
+   * @param calEvent
+   * @param uid
+   */
+  constructor(calEvent: CalendarEvent, uid: string) {
+    this.calEvent = calEvent;
+    this.uid = uid;
+  }
+
+  /**
+   * Returns the email text as HTML representation.
+   *
+   * @protected
+   */
+  protected abstract getHtmlRepresentation(): string;
+
+  /**
+   * Returns the email text in a plain text representation
+   * by stripping off the HTML tags.
+   *
+   * @protected
+   */
+  protected getPlainTextRepresentation(): string {
+    return this.stripHtml(this.getHtmlRepresentation());
+  }
+
+  /**
+   * Strips off all HTML tags and leaves plain text.
+   *
+   * @param html
+   * @protected
+   */
+  protected stripHtml(html: string): string {
+    return html
+      .replace('<br />', "\n")
+      .replace(/<[^>]+>/g, '');
+  }
+
+  /**
+   * Returns the payload object for the nodemailer.
+   * @protected
+   */
+  protected abstract getNodeMailerPayload(): Object;
+
+  /**
+   * Sends the email to the event attendant and returns a Promise.
+   */
+  public sendEmail(): Promise<any> {
+    return new Promise((resolve, reject) => nodemailer.createTransport(this.getMailerOptions().transport).sendMail(
+      this.getNodeMailerPayload(),
+      (error, info) => {
+        if (error) {
+          this.printNodeMailerError(error);
+          reject(new Error(error));
+        } else {
+          resolve(info);
+        }
+      }));
+  }
+
+  /**
+   * Gathers the required provider information from the config.
+   *
+   * @protected
+   */
+  protected getMailerOptions(): any {
+    return {
+      transport: serverConfig.transport,
+      from: serverConfig.from,
+    };
+  }
+
+  /**
+   * Can be used to include additional HTML or plain text
+   * content into the mail body. Leave it to an empty
+   * string if not desired.
+   *
+   * @protected
+   */
+  protected getAdditionalBody(): string {
+    return "";
+  }
+
+  /**
+   * Prints out the desired information when an error
+   * occured while sending the mail.
+   * @param error
+   * @protected
+   */
+  protected abstract printNodeMailerError(error: string): void;
+
+  /**
+   * Returns a link to reschedule the given booking.
+   *
+   * @protected
+   */
+  protected getRescheduleLink(): string {
+    return process.env.BASE_URL + '/reschedule/' + this.uid;
+  }
+
+  /**
+   * Returns a link to cancel the given booking.
+   *
+   * @protected
+   */
+  protected getCancelLink(): string {
+    return process.env.BASE_URL + '/cancel/' + this.uid;
+  }
+
+
+  /**
+   * Defines a footer that will be appended to the email.
+   * @protected
+   */
+  protected getAdditionalFooter(): string {
+    return `
+      <br/>
+      Need to change this event?<br />
+      Cancel: <a href="${this.getCancelLink()}">${this.getCancelLink()}</a><br />
+      Reschedule: <a href="${this.getRescheduleLink()}">${this.getRescheduleLink()}</a>
+    `;
+  }
+}

lib/emails/EventOrganizerMail.ts

@@ -0,0 +1,87 @@
+import {createEvent} from "ics";
+import dayjs, {Dayjs} from "dayjs";
+import EventMail from "./EventMail";
+
+export default class EventOrganizerMail extends EventMail {
+  /**
+   * Returns the instance's event as an iCal event in string representation.
+   * @protected
+   */
+  protected getiCalEventAsString(): string {
+    const icsEvent = createEvent({
+      start: dayjs(this.calEvent.startTime).utc().toArray().slice(0, 6).map((v, i) => i === 1 ? v + 1 : v),
+      startInputType: 'utc',
+      productId: 'calendso/ics',
+      title: `${this.calEvent.type} with ${this.calEvent.attendees[0].name}`,
+      description: this.calEvent.description + this.stripHtml(this.getAdditionalBody()) + this.stripHtml(this.getAdditionalFooter()),
+      duration: { minutes: dayjs(this.calEvent.endTime).diff(dayjs(this.calEvent.startTime), 'minute') },
+      organizer: { name: this.calEvent.organizer.name, email: this.calEvent.organizer.email },
+      attendees: this.calEvent.attendees.map( (attendee: any) => ({ name: attendee.name, email: attendee.email }) ),
+      status: "CONFIRMED",
+    });
+    if (icsEvent.error) {
+      throw icsEvent.error;
+    }
+    return icsEvent.value;
+  }
+
+  /**
+   * Returns the email text as HTML representation.
+   *
+   * @protected
+   */
+  protected getHtmlRepresentation(): string {
+    return `
+      <div>
+        Hi ${this.calEvent.organizer.name},<br />
+        <br />
+        A new event has been scheduled.<br />
+        <br />
+        <strong>Event Type:</strong><br />
+        ${this.calEvent.type}<br />
+        <br />
+        <strong>Invitee Email:</strong><br />
+        <a href="mailto:${this.calEvent.attendees[0].email}">${this.calEvent.attendees[0].email}</a><br />
+        <br />` + this.getAdditionalBody() +
+      (
+        this.calEvent.location ? `
+            <strong>Location:</strong><br />
+            ${this.calEvent.location}<br />
+            <br />
+          ` : ''
+      ) +
+      `<strong>Invitee Time Zone:</strong><br />
+        ${this.calEvent.attendees[0].timeZone}<br />
+        <br />
+        <strong>Additional notes:</strong><br />
+        ${this.calEvent.description}
+      ` + this.getAdditionalFooter() + `   
+      </div>
+    `;
+  }
+
+  /**
+   * Returns the payload object for the nodemailer.
+   *
+   * @protected
+   */
+  protected getNodeMailerPayload(): Object {
+    const organizerStart: Dayjs = <Dayjs>dayjs(this.calEvent.startTime).tz(this.calEvent.organizer.timeZone);
+
+    return {
+      icalEvent: {
+        filename: 'event.ics',
+        content: this.getiCalEventAsString(),
+      },
+      from: `Calendso <${this.getMailerOptions().from}>`,
+      to: this.calEvent.organizer.email,
+      subject: `New event: ${this.calEvent.attendees[0].name} - ${organizerStart.format('LT dddd, LL')} - ${this.calEvent.type}`,
+      html: this.getHtmlRepresentation(),
+      text: this.getPlainTextRepresentation(),
+    };
+  }
+
+  protected printNodeMailerError(error: string): void {
+    console.error("SEND_NEW_EVENT_NOTIFICATION_ERROR", this.calEvent.organizer.email, error);
+  }
+}

lib/emails/EventOrganizerRescheduledMail.ts

@@ -0,0 +1,64 @@
+import dayjs, {Dayjs} from "dayjs";
+import EventOrganizerMail from "./EventOrganizerMail";
+
+export default class EventOrganizerRescheduledMail extends EventOrganizerMail {
+  /**
+   * Returns the email text as HTML representation.
+   *
+   * @protected
+   */
+  protected getHtmlRepresentation(): string {
+    return `
+      <div>
+        Hi ${this.calEvent.organizer.name},<br />
+        <br />
+        Your event has been rescheduled.<br />
+        <br />
+        <strong>Event Type:</strong><br />
+        ${this.calEvent.type}<br />
+        <br />
+        <strong>Invitee Email:</strong><br />
+        <a href="mailto:${this.calEvent.attendees[0].email}">${this.calEvent.attendees[0].email}</a><br />
+        <br />` + this.getAdditionalBody() +
+      (
+        this.calEvent.location ? `
+            <strong>Location:</strong><br />
+            ${this.calEvent.location}<br />
+            <br />
+          ` : ''
+      ) +
+      `<strong>Invitee Time Zone:</strong><br />
+        ${this.calEvent.attendees[0].timeZone}<br />
+        <br />
+        <strong>Additional notes:</strong><br />
+        ${this.calEvent.description}
+      ` + this.getAdditionalFooter() + `   
+      </div>
+    `;
+  }
+
+  /**
+   * Returns the payload object for the nodemailer.
+   *
+   * @protected
+   */
+  protected getNodeMailerPayload(): Object {
+    const organizerStart: Dayjs = <Dayjs>dayjs(this.calEvent.startTime).tz(this.calEvent.organizer.timeZone);
+
+    return {
+      icalEvent: {
+        filename: 'event.ics',
+        content: this.getiCalEventAsString(),
+      },
+      from: `Calendso <${this.getMailerOptions().from}>`,
+      to: this.calEvent.organizer.email,
+      subject: `Rescheduled event: ${this.calEvent.attendees[0].name} - ${organizerStart.format('LT dddd, LL')} - ${this.calEvent.type}`,
+      html: this.getHtmlRepresentation(),
+      text: this.getPlainTextRepresentation(),
+    };
+  }
+
+  protected printNodeMailerError(error: string): void {
+    console.error("SEND_RESCHEDULE_EVENT_NOTIFICATION_ERROR", this.calEvent.organizer.email, error);
+  }
+}

lib/emails/VideoEventAttendeeMail.ts

@@ -0,0 +1,27 @@
+import {CalendarEvent} from "../calendarClient";
+import EventAttendeeMail from "./EventAttendeeMail";
+import {getFormattedMeetingId, getIntegrationName} from "./helpers";
+import {VideoCallData} from "../videoClient";
+
+export default class VideoEventAttendeeMail extends EventAttendeeMail {
+  videoCallData: VideoCallData;
+
+  constructor(calEvent: CalendarEvent, uid: string, videoCallData: VideoCallData) {
+    super(calEvent, uid);
+    this.videoCallData = videoCallData;
+  }
+
+  /**
+   * Adds the video call information to the mail body.
+   *
+   * @protected
+   */
+  protected getAdditionalBody(): string {
+    return `
+      <strong>Video call provider:</strong> ${getIntegrationName(this.videoCallData)}<br />
+      <strong>Meeting ID:</strong> ${getFormattedMeetingId(this.videoCallData)}<br />
+      <strong>Meeting Password:</strong> ${this.videoCallData.password}<br />
+      <strong>Meeting URL:</strong> <a href="${this.videoCallData.url}">${this.videoCallData.url}</a><br />
+    `;
+  }
+}

lib/emails/VideoEventOrganizerMail.ts

@@ -0,0 +1,28 @@
+import {CalendarEvent} from "../calendarClient";
+import EventOrganizerMail from "./EventOrganizerMail";
+import {VideoCallData} from "../videoClient";
+import {getFormattedMeetingId, getIntegrationName} from "./helpers";
+
+export default class VideoEventOrganizerMail extends EventOrganizerMail {
+  videoCallData: VideoCallData;
+
+  constructor(calEvent: CalendarEvent, uid: string, videoCallData: VideoCallData) {
+    super(calEvent, uid);
+    this.videoCallData = videoCallData;
+  }
+
+  /**
+   * Adds the video call information to the mail body
+   * and calendar event description.
+   *
+   * @protected
+   */
+  protected getAdditionalBody(): string {
+    return `
+      <strong>Video call provider:</strong> ${getIntegrationName(this.videoCallData)}<br />
+      <strong>Meeting ID:</strong> ${getFormattedMeetingId(this.videoCallData)}<br />
+      <strong>Meeting Password:</strong> ${this.videoCallData.password}<br />
+      <strong>Meeting URL:</strong> <a href="${this.videoCallData.url}">${this.videoCallData.url}</a><br />
+    `;
+  }
+}

lib/emails/confirm-booked.ts

@@ -1,70 +0,0 @@
-import nodemailer from 'nodemailer';
-import {serverConfig} from "../serverConfig";
-import {CalendarEvent} from "../calendarClient";
-import dayjs, {Dayjs} from "dayjs";
-import localizedFormat from "dayjs/plugin/localizedFormat";
-import utc from "dayjs/plugin/utc";
-import timezone from "dayjs/plugin/timezone";
-
-dayjs.extend(localizedFormat);
-dayjs.extend(utc);
-dayjs.extend(timezone);
-
-export default function createConfirmBookedEmail(calEvent: CalendarEvent, cancelLink: string, rescheduleLink: string, options: any = {}) {
-  return sendEmail(calEvent, cancelLink, rescheduleLink, {
-    provider: {
-      transport: serverConfig.transport,
-      from: serverConfig.from,
-    },
-    ...options
-  });
-}
-
-const sendEmail = (calEvent: CalendarEvent, cancelLink: string, rescheduleLink: string, {
-  provider,
-}) => new Promise( (resolve, reject) => {
-
-  const { from, transport } = provider;
-  const inviteeStart: Dayjs = <Dayjs>dayjs(calEvent.startTime).tz(calEvent.attendees[0].timeZone);
-
-  nodemailer.createTransport(transport).sendMail(
-    {
-      to: `${calEvent.attendees[0].name} <${calEvent.attendees[0].email}>`,
-      from: `${calEvent.organizer.name} <${from}>`,
-      replyTo: calEvent.organizer.email,
-      subject: `Confirmed: ${calEvent.type} with ${calEvent.organizer.name} on ${inviteeStart.format('dddd, LL')}`,
-      html: html(calEvent, cancelLink, rescheduleLink),
-      text: text(calEvent, cancelLink, rescheduleLink),
-    },
-    (error, info) => {
-      if (error) {
-        console.error("SEND_BOOKING_CONFIRMATION_ERROR", calEvent.attendees[0].email, error);
-        return reject(new Error(error));
-      }
-      return resolve();
-    }
-  )
-});
-
-const html = (calEvent: CalendarEvent, cancelLink: string, rescheduleLink: string) => {
-  const inviteeStart: Dayjs = <Dayjs>dayjs(calEvent.startTime).tz(calEvent.attendees[0].timeZone);
-  return `
-    <div>
-      Hi ${calEvent.attendees[0].name},<br />
-      <br />
-      Your ${calEvent.type} with ${calEvent.organizer.name} at ${inviteeStart.format('h:mma')} 
-      (${calEvent.attendees[0].timeZone}) on ${inviteeStart.format('dddd, LL')} is scheduled.<br />
-      <br />` + (
-        calEvent.location ? `<strong>Location:</strong> ${calEvent.location}<br /><br />` : ''
-      ) +
-      `Additional notes:<br />
-      ${calEvent.description}<br />
-      <br />
-      Need to change this event?<br />
-      Cancel: <a href="${cancelLink}">${cancelLink}</a><br />
-      Reschedule: <a href="${rescheduleLink}">${rescheduleLink}</a>
-    </div>
-  `;
-};
-
-const text = (evt: CalendarEvent, cancelLink: string, rescheduleLink: string) => html(evt, cancelLink, rescheduleLink).replace('<br />', "\n").replace(/<[^>]+>/g, '');

lib/emails/helpers.ts

@@ -0,0 +1,20 @@
+import {VideoCallData} from "../videoClient";
+
+export function getIntegrationName(videoCallData: VideoCallData): string {
+  //TODO: When there are more complex integration type strings, we should consider using an extra field in the DB for that.
+  const nameProto = videoCallData.type.split("_")[0];
+  return nameProto.charAt(0).toUpperCase() + nameProto.slice(1);
+}
+
+export function getFormattedMeetingId(videoCallData: VideoCallData): string {
+  switch(videoCallData.type) {
+    case 'zoom_video':
+      const strId = videoCallData.id.toString();
+      const part1 = strId.slice(0, 3);
+      const part2 = strId.slice(3, 7);
+      const part3 = strId.slice(7, 11);
+      return part1 + " " + part2 + " " + part3;
+    default:
+      return videoCallData.id.toString();
+  }
+}

lib/emails/new-event.ts

@@ -1,99 +0,0 @@
-
-import nodemailer from 'nodemailer';
-import dayjs, { Dayjs } from "dayjs";
-import localizedFormat from 'dayjs/plugin/localizedFormat';
-import utc from 'dayjs/plugin/utc';
-import timezone from 'dayjs/plugin/timezone';
-import toArray from 'dayjs/plugin/toArray';
-import { createEvent } from 'ics';
-import { CalendarEvent } from '../calendarClient';
-import { serverConfig } from '../serverConfig';
-
-dayjs.extend(localizedFormat);
-dayjs.extend(utc);
-dayjs.extend(timezone);
-dayjs.extend(toArray);
-
-export default function createNewEventEmail(calEvent: CalendarEvent, options: any = {}) {
-  return sendEmail(calEvent, {
-    provider: {
-      transport: serverConfig.transport,
-      from: serverConfig.from,
-    },
-    ...options
-  });
-}
-
-const icalEventAsString = (calEvent: CalendarEvent): string => {
-  const icsEvent = createEvent({
-    start: dayjs(calEvent.startTime).utc().toArray().slice(0, 6).map((v, i) => i === 1 ? v + 1 : v),
-    startInputType: 'utc',
-    productId: 'calendso/ics',
-    title: `${calEvent.type} with ${calEvent.attendees[0].name}`,
-    description: calEvent.description,
-    duration: { minutes: dayjs(calEvent.endTime).diff(dayjs(calEvent.startTime), 'minute') },
-    organizer: { name: calEvent.organizer.name, email: calEvent.organizer.email },
-    attendees: calEvent.attendees.map( (attendee: any) => ({ name: attendee.name, email: attendee.email }) ),
-    status: "CONFIRMED",
-  });
-  if (icsEvent.error) {
-    throw icsEvent.error;
-  }
-  return icsEvent.value;
-}
-
-const sendEmail = (calEvent: CalendarEvent, {
-  provider,
-}) => new Promise( (resolve, reject) => {
-  const { transport, from } = provider;
-  const organizerStart: Dayjs = <Dayjs>dayjs(calEvent.startTime).tz(calEvent.organizer.timeZone);
-  nodemailer.createTransport(transport).sendMail(
-    {
-      icalEvent: {
-        filename: 'event.ics',
-        content: icalEventAsString(calEvent),
-      },
-      from: `Calendso <${from}>`,
-      to: calEvent.organizer.email,
-      subject: `New event: ${calEvent.attendees[0].name} - ${organizerStart.format('LT dddd, LL')} - ${calEvent.type}`,
-      html: html(calEvent),
-      text: text(calEvent),
-    },
-    (error) => {
-      if (error) {
-        console.error("SEND_NEW_EVENT_NOTIFICATION_ERROR", calEvent.organizer.email, error);
-        return reject(new Error(error));
-      }
-      return resolve();
-    });
-});
-
-const html = (evt: CalendarEvent) => `
-  <div>
-    Hi ${evt.organizer.name},<br />
-    <br />
-    A new event has been scheduled.<br />
-    <br />
-    <strong>Event Type:</strong><br />
-    ${evt.type}<br />
-    <br />
-    <strong>Invitee Email:</strong><br />
-    <a href="mailto:${evt.attendees[0].email}">${evt.attendees[0].email}</a><br />
-    <br />` +
-    (
-      evt.location ? `
-        <strong>Location:</strong><br />
-        ${evt.location}<br />
-        <br />
-      ` : ''
-    ) +
-    `<strong>Invitee Time Zone:</strong><br />
-    ${evt.attendees[0].timeZone}<br />
-    <br />
-    <strong>Additional notes:</strong><br />
-    ${evt.description}
-  </div>
-`;
-
-// just strip all HTML and convert <br /> to \n
-const text = (evt: CalendarEvent) => html(evt).replace('<br />', "\n").replace(/<[^>]+>/g, '');

lib/integrations.ts

@@ -4,6 +4,8 @@ export function getIntegrationName(name: String) {
             return "Google Calendar";
         case "office365_calendar":
             return "Office 365 Calendar";
+        case "zoom_video":
+            return "Zoom";
         default:
             return "Unknown";
     }

lib/videoClient.ts

@@ -0,0 +1,239 @@
+import prisma from "./prisma";
+import {CalendarEvent} from "./calendarClient";
+import VideoEventOrganizerMail from "./emails/VideoEventOrganizerMail";
+import VideoEventAttendeeMail from "./emails/VideoEventAttendeeMail";
+import {v5 as uuidv5} from 'uuid';
+import short from 'short-uuid';
+import EventAttendeeRescheduledMail from "./emails/EventAttendeeRescheduledMail";
+import EventOrganizerRescheduledMail from "./emails/EventOrganizerRescheduledMail";
+
+const translator = short();
+
+export interface VideoCallData {
+  type: string;
+  id: string;
+  password: string;
+  url: string;
+}
+
+function handleErrorsJson(response) {
+  if (!response.ok) {
+    response.json().then(console.log);
+    throw Error(response.statusText);
+  }
+  return response.json();
+}
+
+function handleErrorsRaw(response) {
+  if (!response.ok) {
+    response.text().then(console.log);
+    throw Error(response.statusText);
+  }
+  return response.text();
+}
+
+const zoomAuth = (credential) => {
+
+  const isExpired = (expiryDate) => expiryDate < +(new Date());
+  const authHeader = 'Basic ' + Buffer.from(process.env.ZOOM_CLIENT_ID + ':' + process.env.ZOOM_CLIENT_SECRET).toString('base64');
+
+  const refreshAccessToken = (refreshToken) => fetch('https://zoom.us/oauth/token', {
+    method: 'POST',
+    headers: {
+      'Authorization': authHeader,
+      'Content-Type': 'application/x-www-form-urlencoded'
+    },
+    body: new URLSearchParams({
+      'refresh_token': refreshToken,
+      'grant_type': 'refresh_token',
+    })
+  })
+    .then(handleErrorsJson)
+    .then(async (responseBody) => {
+      // Store new tokens in database.
+      await prisma.credential.update({
+        where: {
+          id: credential.id
+        },
+        data: {
+          key: responseBody
+        }
+      });
+      credential.key.access_token = responseBody.access_token;
+      credential.key.expires_in = Math.round((+(new Date()) / 1000) + responseBody.expires_in);
+      return credential.key.access_token;
+    })
+
+  return {
+    getToken: () => !isExpired(credential.key.expires_in) ? Promise.resolve(credential.key.access_token) : refreshAccessToken(credential.key.refresh_token)
+  };
+};
+
+interface VideoApiAdapter {
+  createMeeting(event: CalendarEvent): Promise<any>;
+
+  updateMeeting(uid: String, event: CalendarEvent);
+
+  deleteMeeting(uid: String);
+
+  getAvailability(dateFrom, dateTo): Promise<any>;
+}
+
+const ZoomVideo = (credential): VideoApiAdapter => {
+
+  const auth = zoomAuth(credential);
+
+  const translateEvent = (event: CalendarEvent) => {
+    // Documentation at: https://marketplace.zoom.us/docs/api-reference/zoom-api/meetings/meetingcreate
+    return {
+      topic: event.title,
+      type: 2,    // Means that this is a scheduled meeting
+      start_time: event.startTime,
+      duration: ((new Date(event.endTime)).getTime() - (new Date(event.startTime)).getTime()) / 60000,
+      //schedule_for: "string",   TODO: Used when scheduling the meeting for someone else (needed?)
+      timezone: event.attendees[0].timeZone,
+      //password: "string",       TODO: Should we use a password? Maybe generate a random one?
+      agenda: event.description,
+      settings: {
+        host_video: true,
+        participant_video: true,
+        cn_meeting: false,  // TODO: true if host meeting in China
+        in_meeting: false,  // TODO: true if host meeting in India
+        join_before_host: true,
+        mute_upon_entry: false,
+        watermark: false,
+        use_pmi: false,
+        approval_type: 2,
+        audio: "both",
+        auto_recording: "none",
+        enforce_login: false,
+        registrants_email_notification: true
+      }
+    };
+  };
+
+  return {
+    getAvailability: (dateFrom, dateTo) => {
+      return auth.getToken().then(
+        // TODO Possibly implement pagination for cases when there are more than 300 meetings already scheduled.
+        (accessToken) => fetch('https://api.zoom.us/v2/users/me/meetings?type=scheduled&page_size=300', {
+          method: 'get',
+          headers: {
+            'Authorization': 'Bearer ' + accessToken
+          }
+        })
+          .then(handleErrorsJson)
+          .then(responseBody => {
+            return responseBody.meetings.map((meeting) => ({
+              start: meeting.start_time,
+              end: (new Date((new Date(meeting.start_time)).getTime() + meeting.duration * 60000)).toISOString()
+            }))
+          })
+      ).catch((err) => {
+        console.log(err);
+      });
+    },
+    createMeeting: (event: CalendarEvent) => auth.getToken().then(accessToken => fetch('https://api.zoom.us/v2/users/me/meetings', {
+      method: 'POST',
+      headers: {
+        'Authorization': 'Bearer ' + accessToken,
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify(translateEvent(event))
+    }).then(handleErrorsJson)),
+    deleteMeeting: (uid: String) => auth.getToken().then(accessToken => fetch('https://api.zoom.us/v2/meetings/' + uid, {
+      method: 'DELETE',
+      headers: {
+        'Authorization': 'Bearer ' + accessToken
+      }
+    }).then(handleErrorsRaw)),
+    updateMeeting: (uid: String, event: CalendarEvent) => auth.getToken().then(accessToken => fetch('https://api.zoom.us/v2/meetings/' + uid, {
+      method: 'PATCH',
+      headers: {
+        'Authorization': 'Bearer ' + accessToken,
+        'Content-Type': 'application/json'
+      },
+      body: JSON.stringify(translateEvent(event))
+    }).then(handleErrorsRaw)),
+  }
+};
+
+// factory
+const videoIntegrations = (withCredentials): VideoApiAdapter[] => withCredentials.map((cred) => {
+  switch (cred.type) {
+    case 'zoom_video':
+      return ZoomVideo(cred);
+    default:
+      return; // unknown credential, could be legacy? In any case, ignore
+  }
+}).filter(Boolean);
+
+
+const getBusyVideoTimes = (withCredentials, dateFrom, dateTo) => Promise.all(
+  videoIntegrations(withCredentials).map(c => c.getAvailability(dateFrom, dateTo))
+).then(
+  (results) => results.reduce((acc, availability) => acc.concat(availability), [])
+);
+
+const createMeeting = async (credential, calEvent: CalendarEvent): Promise<any> => {
+  const uid: string = translator.fromUUID(uuidv5(JSON.stringify(calEvent), uuidv5.URL));
+
+  if (!credential) {
+    throw new Error("Credentials must be set! Video platforms are optional, so this method shouldn't even be called when no video credentials are set.");
+  }
+
+  const creationResult = await videoIntegrations([credential])[0].createMeeting(calEvent);
+
+  const videoCallData: VideoCallData = {
+    type: credential.type,
+    id: creationResult.id,
+    password: creationResult.password,
+    url: creationResult.join_url,
+  };
+
+  const organizerMail = new VideoEventOrganizerMail(calEvent, uid, videoCallData);
+  const attendeeMail = new VideoEventAttendeeMail(calEvent, uid, videoCallData);
+  await organizerMail.sendEmail();
+
+  if (!creationResult || !creationResult.disableConfirmationEmail) {
+    await attendeeMail.sendEmail();
+  }
+
+  return {
+    uid,
+    createdEvent: creationResult
+  };
+};
+
+const updateMeeting = async (credential, uidToUpdate: String, calEvent: CalendarEvent): Promise<any> => {
+  const newUid: string = translator.fromUUID(uuidv5(JSON.stringify(calEvent), uuidv5.URL));
+
+  if (!credential) {
+    throw new Error("Credentials must be set! Video platforms are optional, so this method shouldn't even be called when no video credentials are set.");
+  }
+
+  const updateResult = credential ? await videoIntegrations([credential])[0].updateMeeting(uidToUpdate, calEvent) : null;
+
+  const organizerMail = new EventOrganizerRescheduledMail(calEvent, newUid);
+  const attendeeMail = new EventAttendeeRescheduledMail(calEvent, newUid);
+  await organizerMail.sendEmail();
+
+  if (!updateResult || !updateResult.disableConfirmationEmail) {
+    await attendeeMail.sendEmail();
+  }
+
+  return {
+    uid: newUid,
+    updatedEvent: updateResult
+  };
+};
+
+const deleteMeeting = (credential, uid: String): Promise<any> => {
+  if (credential) {
+    return videoIntegrations([credential])[0].deleteMeeting(uid);
+  }
+
+  return Promise.resolve({});
+};
+
+export {getBusyVideoTimes, createMeeting, updateMeeting, deleteMeeting};

pages/[user]/[type].tsx

@@ -1,25 +1,25 @@
-import {useEffect, useState, useMemo} from 'react';
+import {useEffect, useMemo, useState} from 'react';
 import Head from 'next/head';
 import Link from 'next/link';
 import prisma from '../../lib/prisma';
-import { useRouter } from 'next/router';
+import {useRouter} from 'next/router';
-import dayjs, { Dayjs } from 'dayjs';
+import dayjs, {Dayjs} from 'dayjs';
-import { Switch } from '@headlessui/react';
+import {Switch} from '@headlessui/react';
 import TimezoneSelect from 'react-timezone-select';
-import { ClockIcon, GlobeIcon, ChevronDownIcon, ChevronLeftIcon, ChevronRightIcon } from '@heroicons/react/solid';
+import {ChevronDownIcon, ChevronLeftIcon, ChevronRightIcon, ClockIcon, GlobeIcon} from '@heroicons/react/solid';
 import isSameOrBefore from 'dayjs/plugin/isSameOrBefore';
 import isBetween from 'dayjs/plugin/isBetween';
 import utc from 'dayjs/plugin/utc';
 import timezone from 'dayjs/plugin/timezone';
 import Avatar from '../../components/Avatar';
+import getSlots from '../../lib/slots';
+import {collectPageParameters, telemetryEventTypes, useTelemetry} from "../../lib/telemetry";
+
 dayjs.extend(isSameOrBefore);
 dayjs.extend(isBetween);
 dayjs.extend(utc);
 dayjs.extend(timezone);
 
-import getSlots from '../../lib/slots';
-import {collectPageParameters, telemetryEventTypes, useTelemetry} from "../../lib/telemetry";
-
 function classNames(...classes) {
     return classes.filter(Boolean).join(' ')
 }

pages/[user]/book.tsx

@@ -76,7 +76,7 @@ export default function Book(props) {
             }
         );
 
-        let successUrl = `/success?date=${date}&type=${props.eventType.id}&user=${props.user.username}&reschedule=1&name=${payload.name}`;
+        let successUrl = `/success?date=${date}&type=${props.eventType.id}&user=${props.user.username}&reschedule=${!!rescheduleUid}&name=${payload.name}`;
         if (payload['location']) {
             successUrl += "&location=" + encodeURIComponent(payload['location']);
         }

pages/api/availability/[user].ts

@@ -1,6 +1,7 @@
-import type { NextApiRequest, NextApiResponse } from 'next';
+import type {NextApiRequest, NextApiResponse} from 'next';
 import prisma from '../../../lib/prisma';
-import { getBusyTimes } from '../../../lib/calendarClient';
+import {getBusyCalendarTimes} from '../../../lib/calendarClient';
+import {getBusyVideoTimes} from '../../../lib/videoClient';
 import dayjs from "dayjs";
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
@@ -23,12 +24,26 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
         }
     }));
 
-    let availability = await getBusyTimes(currentUser.credentials, req.query.dateFrom, req.query.dateTo, selectedCalendars);
+    const hasCalendarIntegrations = currentUser.credentials.filter((cred) => cred.type.endsWith('_calendar')).length > 0;
+    const hasVideoIntegrations = currentUser.credentials.filter((cred) => cred.type.endsWith('_video')).length > 0;
 
-    availability = availability.map(a => ({
+    const calendarAvailability = await getBusyCalendarTimes(currentUser.credentials, req.query.dateFrom, req.query.dateTo, selectedCalendars);
+    const videoAvailability = await getBusyVideoTimes(currentUser.credentials, req.query.dateFrom, req.query.dateTo);
+
+    let commonAvailability = [];
+
+    if(hasCalendarIntegrations && hasVideoIntegrations) {
+        commonAvailability = calendarAvailability.filter(availability => videoAvailability.includes(availability));
+    } else if(hasVideoIntegrations) {
+        commonAvailability = videoAvailability;
+    } else if(hasCalendarIntegrations) {
+        commonAvailability = calendarAvailability;
+    }
+
+    commonAvailability = commonAvailability.map(a => ({
         start: dayjs(a.start).subtract(currentUser.bufferTime, 'minute').toString(),
         end: dayjs(a.end).add(currentUser.bufferTime, 'minute').toString()
     }));
 
-    res.status(200).json(availability);
+    res.status(200).json(commonAvailability);
 }

pages/api/availability/calendar.ts

@@ -1,5 +1,5 @@
-import type { NextApiRequest, NextApiResponse } from 'next';
+import type {NextApiRequest, NextApiResponse} from 'next';
-import { getSession } from 'next-auth/client';
+import {getSession} from 'next-auth/client';
 import prisma from '../../../lib/prisma';
 import {IntegrationCalendar, listCalendars} from "../../../lib/calendarClient";
 

pages/api/availability/day.ts

@@ -1,5 +1,5 @@
-import type { NextApiRequest, NextApiResponse } from 'next';
+import type {NextApiRequest, NextApiResponse} from 'next';
-import { getSession } from 'next-auth/client';
+import {getSession} from 'next-auth/client';
 import prisma from '../../../lib/prisma';
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {

pages/api/availability/eventtype.ts

@@ -1,5 +1,5 @@
-import type { NextApiRequest, NextApiResponse } from 'next';
+import type {NextApiRequest, NextApiResponse} from 'next';
-import { getSession } from 'next-auth/client';
+import {getSession} from 'next-auth/client';
 import prisma from '../../../lib/prisma';
 
 export default async function handler(req: NextApiRequest, res: NextApiResponse) {

pages/api/book/[user].ts

@@ -1,10 +1,11 @@
 import type {NextApiRequest, NextApiResponse} from 'next';
 import prisma from '../../../lib/prisma';
 import {CalendarEvent, createEvent, updateEvent} from '../../../lib/calendarClient';
-import createConfirmBookedEmail from "../../../lib/emails/confirm-booked";
 import async from 'async';
 import {v5 as uuidv5} from 'uuid';
 import short from 'short-uuid';
+import {createMeeting, updateMeeting} from "../../../lib/videoClient";
+import EventAttendeeMail from "../../../lib/emails/EventAttendeeMail";
 import {getEventName} from "../../../lib/event";
 
 const translator = short();
@@ -25,6 +26,10 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
     }
   });
 
+  // Split credentials up into calendar credentials and video credentials
+  const calendarCredentials = currentUser.credentials.filter(cred => cred.type.endsWith('_calendar'));
+  const videoCredentials = currentUser.credentials.filter(cred => cred.type.endsWith('_video'));
+
   const rescheduleUid = req.body.rescheduleUid;
 
   const selectedEventType = await prisma.eventType.findFirst({
@@ -51,19 +56,6 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
     ]
   };
 
-  const hashUID: string = translator.fromUUID(uuidv5(JSON.stringify(evt), uuidv5.URL));
-  const cancelLink: string = process.env.BASE_URL + '/cancel/' + hashUID;
-  const rescheduleLink:string = process.env.BASE_URL + '/reschedule/' + hashUID;
-  const appendLinksToEvents = (event: CalendarEvent) => {
-    const eventCopy = {...event};
-    eventCopy.description += "\n\n"
-      + "Need to change this event?\n"
-      + "Cancel: " + cancelLink + "\n"
-      + "Reschedule:" + rescheduleLink;
-
-    return eventCopy;
-  }
-
   const eventType = await prisma.eventType.findFirst({
     where: {
       userId: currentUser.id,
@@ -74,8 +66,8 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
     }
   });
 
-  let results = undefined;
+  let results = [];
-  let referencesToCreate = undefined;
+  let referencesToCreate = [];
 
   if (rescheduleUid) {
     // Reschedule event
@@ -96,10 +88,24 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
     });
 
     // Use all integrations
-    results = await async.mapLimit(currentUser.credentials, 5, async (credential) => {
+    results = results.concat(await async.mapLimit(calendarCredentials, 5, async (credential) => {
       const bookingRefUid = booking.references.filter((ref) => ref.type === credential.type)[0].uid;
-      return await updateEvent(credential, bookingRefUid, appendLinksToEvents(evt))
+      const response = await updateEvent(credential, bookingRefUid, evt);
-    });
+
+      return {
+        type: credential.type,
+        response
+      };
+    }));
+
+    results = results.concat(await async.mapLimit(videoCredentials, 5, async (credential) => {
+      const bookingRefUid = booking.references.filter((ref) => ref.type === credential.type)[0].uid;
+      const response = await updateMeeting(credential, bookingRefUid, evt);
+      return {
+        type: credential.type,
+        response
+      };
+    }));
 
     // Clone elements
     referencesToCreate = [...booking.references];
@@ -128,22 +134,40 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
     ]);
   } else {
     // Schedule event
-    results = await async.mapLimit(currentUser.credentials, 5, async (credential) => {
+    results = results.concat(await async.mapLimit(calendarCredentials, 5, async (credential) => {
-      const response = await createEvent(credential, appendLinksToEvents(evt));
+      const response = await createEvent(credential, evt);
       return {
         type: credential.type,
         response
       };
-    });
+    }));
+
+    results = results.concat(await async.mapLimit(videoCredentials, 5, async (credential) => {
+      const response = await createMeeting(credential, evt);
+      return {
+        type: credential.type,
+        response
+      };
+    }));
 
     referencesToCreate = results.map((result => {
       return {
         type: result.type,
-        uid: result.response.id
+        uid: result.response.createdEvent.id.toString()
       };
     }));
   }
 
+  // TODO Should just be set to the true case as soon as we have a "bare email" integration class.
+  // UID generation should happen in the integration itself, not here.
+  const hashUID = results.length > 0 ? results[0].response.uid : translator.fromUUID(uuidv5(JSON.stringify(evt), uuidv5.URL));
+  if(results.length === 0) {
+    // Legacy as well, as soon as we have a separate email integration class. Just used
+    // to send an email even if there is no integration at all.
+    const mail = new EventAttendeeMail(evt, hashUID);
+    await mail.sendEmail();
+  }
+
   await prisma.booking.create({
     data: {
       uid: hashUID,
@@ -164,12 +188,5 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
     }
   });
 
-  // If one of the integrations allows email confirmations or no integrations are added, send it.
-  if (currentUser.credentials.length === 0 || !results.every((result) => result.disableConfirmationEmail)) {
-    await createConfirmBookedEmail(
-      evt, cancelLink, rescheduleLink
-    );
-  }
-
   res.status(200).json(results);
 }

pages/api/cancel.ts

@@ -1,6 +1,7 @@
 import prisma from '../../lib/prisma';
 import {deleteEvent} from "../../lib/calendarClient";
 import async from 'async';
+import {deleteMeeting} from "../../lib/videoClient";
 
 export default async function handler(req, res) {
   if (req.method == "POST") {
@@ -29,7 +30,11 @@ export default async function handler(req, res) {
 
     const apiDeletes = async.mapLimit(bookingToDelete.user.credentials, 5, async (credential) => {
       const bookingRefUid = bookingToDelete.references.filter((ref) => ref.type === credential.type)[0].uid;
+      if(credential.type.endsWith("_calendar")) {
         return await deleteEvent(credential, bookingRefUid);
+      } else if(credential.type.endsWith("_video")) {
+        return await deleteMeeting(credential, bookingRefUid);
+      }
     });
     const attendeeDeletes = prisma.attendee.deleteMany({
       where: {

pages/api/integrations/zoomvideo/add.ts

@@ -0,0 +1,29 @@
+import type {NextApiRequest, NextApiResponse} from 'next';
+import {getSession} from 'next-auth/client';
+import prisma from '../../../../lib/prisma';
+
+const client_id = process.env.ZOOM_CLIENT_ID;
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+    if (req.method === 'GET') {
+        // Check that user is authenticated
+        const session = await getSession({req: req});
+
+        if (!session) { res.status(401).json({message: 'You must be logged in to do this'}); return; }
+
+        // Get user
+        const user = await prisma.user.findFirst({
+            where: {
+                email: session.user.email,
+            },
+            select: {
+                id: true
+            }
+        });
+
+        const redirectUri = encodeURI(process.env.BASE_URL + '/api/integrations/zoomvideo/callback');
+        const authUrl = 'https://zoom.us/oauth/authorize?response_type=code&client_id=' + client_id + '&redirect_uri=' + redirectUri;
+
+        res.status(200).json({url: authUrl});
+    }
+}

pages/api/integrations/zoomvideo/callback.ts

@@ -0,0 +1,39 @@
+import type {NextApiRequest, NextApiResponse} from 'next';
+import {getSession} from "next-auth/client";
+import prisma from "../../../../lib/prisma";
+
+const client_id = process.env.ZOOM_CLIENT_ID;
+const client_secret = process.env.ZOOM_CLIENT_SECRET;
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+    const { code } = req.query;
+
+    // Check that user is authenticated
+    const session = await getSession({req: req});
+
+    if (!session) { res.status(401).json({message: 'You must be logged in to do this'}); return; }
+
+    const redirectUri = encodeURI(process.env.BASE_URL + '/api/integrations/zoomvideo/callback');
+    const authHeader = 'Basic ' + Buffer.from(client_id + ':' + client_secret).toString('base64');
+
+    return new Promise( async (resolve, reject) => {
+      const result = await fetch('https://zoom.us/oauth/token?grant_type=authorization_code&code=' + code + '&redirect_uri=' + redirectUri, {
+          method: 'POST',
+          headers: {
+              Authorization: authHeader
+          }
+      })
+        .then(res => res.json());
+
+      await prisma.credential.create({
+        data: {
+          type: 'zoom_video',
+          key: result,
+          userId: session.user.id
+        }
+      });
+
+      res.redirect('/integrations');
+      resolve();
+    });
+}

pages/availability/event/[type].tsx

@@ -1,18 +1,13 @@
 import Head from 'next/head';
 import Link from 'next/link';
-import { useRouter } from 'next/router';
+import {useRouter} from 'next/router';
-import { useRef, useState } from 'react';
+import {useRef, useState} from 'react';
-import Select, { OptionBase } from 'react-select';
+import Select, {OptionBase} from 'react-select';
 import prisma from '../../../lib/prisma';
-import { LocationType } from '../../../lib/location';
+import {LocationType} from '../../../lib/location';
 import Shell from '../../../components/Shell';
-import { useSession, getSession } from 'next-auth/client';
+import {getSession, useSession} from 'next-auth/client';
-import {
+import {LocationMarkerIcon, PhoneIcon, PlusCircleIcon, XIcon,} from '@heroicons/react/outline';
-  LocationMarkerIcon,
-  PlusCircleIcon,
-  XIcon,
-  PhoneIcon,
-} from '@heroicons/react/outline';
 
 export default function EventType(props) {
     const router = useRouter();

pages/availability/index.tsx

@@ -3,11 +3,10 @@ import Link from 'next/link';
 import prisma from '../../lib/prisma';
 import Modal from '../../components/Modal';
 import Shell from '../../components/Shell';
-import { useRouter } from 'next/router';
+import {useRouter} from 'next/router';
-import { useRef } from 'react';
+import {useRef, useState} from 'react';
-import { useState } from 'react';
+import {getSession, useSession} from 'next-auth/client';
-import { useSession, getSession } from 'next-auth/client';
+import {ClockIcon, PlusIcon} from '@heroicons/react/outline';
-import { PlusIcon, ClockIcon } from '@heroicons/react/outline';
 
 export default function Availability(props) {
     const [ session, loading ] = useSession();

pages/index.tsx

@@ -2,8 +2,8 @@ import Head from 'next/head';
 import Link from 'next/link';
 import prisma from '../lib/prisma';
 import Shell from '../components/Shell';
-import { signIn, useSession, getSession } from 'next-auth/client';
+import {getSession, useSession} from 'next-auth/client';
-import { ClockIcon, CheckIcon, InformationCircleIcon } from '@heroicons/react/outline';
+import {CheckIcon, ClockIcon, InformationCircleIcon} from '@heroicons/react/outline';
 import DonateBanner from '../components/DonateBanner';
 
 function classNames(...classes) {
@@ -206,10 +206,13 @@ export default function Home(props) {
                                     <li className="pb-4 flex">
                                         {integration.type == 'google_calendar' && <img className="h-10 w-10 mr-2" src="integrations/google-calendar.png" alt="Google Calendar" />}
                                         {integration.type == 'office365_calendar' && <img className="h-10 w-10 mr-2" src="integrations/office-365.png" alt="Office 365 / Outlook.com Calendar" />}
+                                        {integration.type == 'zoom_video' && <img className="h-10 w-10 mr-2" src="integrations/zoom.png" alt="Zoom" />}
                                         <div className="ml-3">
                                             {integration.type == 'office365_calendar' && <p className="text-sm font-medium text-gray-900">Office 365 / Outlook.com Calendar</p>}
                                             {integration.type == 'google_calendar' && <p className="text-sm font-medium text-gray-900">Google Calendar</p>}
-                                            <p className="text-sm text-gray-500">Calendar Integration</p>
+                                            {integration.type == 'zoom_video' && <p className="text-sm font-medium text-gray-900">Zoom</p>}
+                                            {integration.type.endsWith('_calendar') && <p className="text-sm text-gray-500">Calendar Integration</p>}
+                                            {integration.type.endsWith('_video') && <p className="text-sm text-gray-500">Video Conferencing</p>}
                                         </div>
                                     </li>
                                 )}

pages/integrations/index.tsx

@@ -6,7 +6,7 @@ import {useEffect, useState} from 'react';
 import {getSession, useSession} from 'next-auth/client';
 import {CalendarIcon, CheckCircleIcon, ChevronRightIcon, PlusIcon, XCircleIcon} from '@heroicons/react/solid';
 import {InformationCircleIcon} from '@heroicons/react/outline';
-import { Switch } from '@headlessui/react'
+import {Switch} from '@headlessui/react'
 
 export default function Home({ integrations }) {
     const [session, loading] = useSession();
@@ -107,6 +107,7 @@ export default function Home({ integrations }) {
                                                     <p className="text-sm font-medium text-blue-600 truncate">{ig.title}</p>
                                                     <p className="flex items-center text-sm text-gray-500">
                                                         {ig.type.endsWith('_calendar') && <span className="truncate">Calendar Integration</span>}
+                                                        {ig.type.endsWith('_video') && <span className="truncate">Video Conferencing</span>}
                                                     </p>
                                                 </div>
                                                 <div className="hidden md:block">
@@ -363,14 +364,21 @@ export async function getServerSideProps(context) {
         type: "google_calendar",
         title: "Google Calendar",
         imageSrc: "integrations/google-calendar.png",
-        description: "For personal and business accounts",
+        description: "For personal and business calendars",
     }, {
         installed: !!(process.env.MS_GRAPH_CLIENT_ID && process.env.MS_GRAPH_CLIENT_SECRET),
         type: "office365_calendar",
         credential: credentials.find( (integration) => integration.type === "office365_calendar" ) || null,
         title: "Office 365 / Outlook.com Calendar",
         imageSrc: "integrations/office-365.png",
-        description: "For personal and business accounts",
+        description: "For personal and business calendars",
+    }, {
+        installed: !!(process.env.ZOOM_CLIENT_ID && process.env.ZOOM_CLIENT_SECRET),
+        type: "zoom_video",
+        credential: credentials.find( (integration) => integration.type === "zoom_video" ) || null,
+        title: "Zoom",
+        imageSrc: "integrations/zoom.png",
+        description: "Video Conferencing",
     } ];
 
     return {

pages/success.tsx

@@ -2,14 +2,14 @@ import Head from 'next/head';
 import Link from 'next/link';
 import prisma from '../lib/prisma';
 import {useEffect, useState} from "react";
-import { useRouter } from 'next/router';
+import {useRouter} from 'next/router';
-import { CheckIcon } from '@heroicons/react/outline';
+import {CheckIcon} from '@heroicons/react/outline';
-import { ClockIcon, CalendarIcon, LocationMarkerIcon } from '@heroicons/react/solid';
+import {CalendarIcon, ClockIcon, LocationMarkerIcon} from '@heroicons/react/solid';
 import dayjs from 'dayjs';
 import utc from 'dayjs/plugin/utc';
 import toArray from 'dayjs/plugin/toArray';
 import timezone from 'dayjs/plugin/timezone';
-import { createEvent } from 'ics';
+import {createEvent} from 'ics';
 import {getEventName} from "../lib/event";
 
 dayjs.extend(utc);