Calendar Sync

Keep the user's travel world in sync. The killer feature: when a new flight is imported, check the calendar for events within 48 hours of arrival. Calculate body clock time at each event. "You have a 9 AM board meeting and your body clock will be at 3 AM — push it, or start pre-adaptation 3 days early."

API Endpoints

• POST /api/calendar/connect — initiate OAuth ({ provider: "google" })
• GET /api/calendar/connections — list active connections
• POST /api/calendar/disconnect — remove connection ({ provider })
• POST /api/calendar/create-events — create jetlag recovery events
• POST /api/calendar/sync-flight — sync a flight's events to calendar
• POST /api/trips/{tripId}/calendar — sync all trip flights to calendar
• POST /api/calendar/preferences — sync preferences (color, event types, reminders)
• GET /api/calendar/export-ics — ICS export fallback

Concierge Calendar Integration

Endpoint: GET /api/concierge/instances/{instanceId}/calendar/events

Returns calendar events for the next 7 days:

{
  "connected": true,
  "events": [
    { "id": "...", "title": "Team Standup", "start": "2026-02-25T10:00:00-08:00", "end": "2026-02-25T10:30:00-08:00", "location": "Zoom" }
  ],
  "count": 5
}

The agent uses this to:

1. Get upcoming events within 48h of arrival
2. Calculate body clock time at each event
3. Flag conflicts: "Your 9 AM meeting will be at 3 AM body clock"

Calendar Event Types

• Flight events (departure/arrival times, gate, terminal)
• Layover activities (tentative)
• Recovery plan milestones (light therapy, sleep windows)
• Hotel check-in/checkout
• Reminders: 24h before (check-in), 3h before (leave for airport)

Body Clock Conflict Detection

When a new flight is imported:

1. Get events within 48h of arrival from user's calendar
2. Calculate body clock time at each event using origin timezone + flight duration
3. Flag conflicts: "Your 9 AM meeting will happen at 3 AM body clock"
4. Suggest pre-adaptation or rescheduling

Auto-Sync

• Flight added → calendar event created
• Flight cancelled → calendar event updated/removed
• Flight time changed → calendar event updated, conflicts rechecked

Access Pattern

The agent accesses Google Calendar through Aerobase API endpoints (backend mediates OAuth tokens). The agent does not call Google APIs directly.

Rate Limits

• Calendar sync cron: daily at 08:00 UTC (do not increase). Max 20 events per sync.
• Read upcoming events: max 10/hr. If Google returns 429: back off 15 min.