✅ Today’s Work Summary - April 11, 2025

🛠️ Features Implemented

1. Approve Meeting Logic

• Implemented approveMeeting controller.
• Updates meeting status to "upcoming".
• Fetches user from DB via meeting.userId.
• Uses stored accessToken to create a Google Calendar event.

2. Google Calendar Integration

• Used googleapis to authenticate with Google using accessToken.
• Created event on user's primary Google Calendar with:
  • summary (title)
  • description (meeting with user)
  • start and end times
  • Timezone: "Asia/Kolkata"
• Handled missing times and error cases.

3. Enhanced createCalendarEvent Function

• Parameters:
  • accessToken
  • startDateTime, endDateTime
  • title, description
  • location, attendees (optional)
• Added default reminders and safety checks.

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🐛 Issues Encountered & Fixed

❌ Error: Cannot read properties of undefined (reading 'title')

• ✅ Fix: Corrected argument structure passed to createCalendarEvent.

❌ Error: Insufficient Permission

• ✅ Fix: Missing scopes during Google OAuth.
• Updated passport strategy to request:

  passport.authenticate("google", {
    scope: [
      "profile",
      "email",
      "https://www.googleapis.com/auth/calendar",
      "https://www.googleapis.com/auth/calendar.events",
    ],
    accessType: "offline",
    prompt: "consent",
  });

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❌ Error: Google Calendar API has not been used

• ✅ Fix: Enabled the Google Calendar API from Google Cloud Console for project ID 519134446809.

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🔄 Future Tasks

➕ Google Meet Integration

• Goal: Auto-generate Google Meet links for events.
• Steps:
  1. Enable Google Calendar API and Google Meet Conference in the Google Cloud Console.
  2. Update createCalendarEvent to include:

     conferenceDataVersion: 1,
     requestBody: {
       conferenceData: {
         createRequest: {
           requestId: "some-unique-id", // e.g. uuid()
           conferenceSolutionKey: { type: "hangoutsMeet" },
         },
       },
     }

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📦 Final Working Files

• ✅ approveMeeting.js – Controller logic for approving meeting & syncing with calendar.
• ✅ createCalendarEvent.js – Calendar helper with customizable parameters.
• ✅ passport.js – OAuth2 strategy updated with correct scopes.
• ✅ auth.js – Login route via Google with updated OAuth2 flow.

Project Summary - Meeting Scheduler with Google Calendar Integration

Date: April 13, 2025

1. Meeting Data Management

• Integrated Meeting schema with fields like userId, title, selectDay, selectTime, slot, type, user_role, startDateTime, endDateTime, eventId, and meetingLink.
• Stored user details with accessToken and refreshToken for Google Calendar integration.

2. Google Calendar Integration

• Implemented calendar event creation using OAuth2 credentials and refresh tokens.
• Stored eventId and meetingLink from Google Calendar when an event is created.

3. Meeting Rescheduling

• Handled rescheduling logic without creating a new event.
• Updated the existing event and reset startDateTime and endDateTime to null after reschedule request.

4. Meeting Deletion Workflow

• Created deleteCalendarEvent() utility:

  • Accepts eventId and refreshToken.
  • Uses OAuth2 to authenticate and delete the event from the user's Google Calendar.

• Enhanced deleteMeeting() controller:

  • Fetches the meeting by id.
  • Gets the user by userId from the meeting.
  • Checks if eventId exists:
    • If yes: Deletes event from Google Calendar using refreshToken.
    • If no: Proceeds to delete the meeting directly.
  • Deletes the meeting document from MongoDB.
  • Returns appropriate success or error response.

5. Final Touches

• Ensured robust error handling and logging.
• Maintained clean API response structure with success, message, and data.

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Next Steps (Optional):

• Add audit logs or notifications.
• Implement admin panel to view and manage all meetings.
• Schedule email reminders using node-cron or similar scheduler.