feat: add native Daily.co video calls for Cal Video deep links

[PeerRich]

Summary

When a booking's meeting URL is a Cal Video link, the app now opens a native video call screen powered by Daily.co's React Native SDK instead of opening the browser. The app also registers as a handler for app.cal.com/video/* URLs via iOS Universal Links and Android App Links, so tapping these URLs outside the app (e.g. in Safari, Chrome, email) can open the native video call directly.

Two URL resolution paths:

• In-app (booking detail screens): The Cal.com API already returns the direct Daily.co room URL (meetco.daily.co/<room-name>) in the booking's meetingUrl field. When tapping "Join", we detect this with isDailyRoomUrl() and pass it straight to the video-call screen.
• Deep links (app.cal.com/video/<booking-uid>): The URL path contains a booking UID, not a Daily room name. The deep link handler extracts the UID and passes it as a bookingUid param. The video-call screen then fetches the booking via getBookingByUid() and resolves the actual Daily.co room URL from the response.

Changes:

• Added @daily-co/react-native-daily-js and peer dependencies (@daily-co/react-native-webrtc, react-native-background-timer, react-native-get-random-values)
• Created video-call.tsx screen with Daily.co CallObject API (join, leave, mic/camera toggle, camera flip, participant video rendering). Accepts either a direct url param or a bookingUid param with async resolution.
• Created utils/cal-video.ts with URL detection and resolution utilities:
  • isDailyRoomUrl() — detects direct meetco.daily.co URLs (from API)
  • isCalVideoWebUrl() / getBookingUidFromCalVideoUrl() — detects and parses app.cal.com/video/<uid> URLs (from deep links)
  • resolveDailyRoomUrl() — async function that resolves either URL type to a joinable Daily.co room URL, fetching the booking via API when needed
• Updated handleJoinMeeting in all three booking detail screens to route Daily.co URLs to the native screen, falling back to browser for other URLs (Zoom, Google Meet, etc.)
• Registered the video-call route as a fullScreenModal in _layout.tsx
• Added @daily-co/config-plugin-rn-daily-js Expo plugin and iOS camera/microphone permission descriptions
• Added iOS Universal Links (applinks:app.cal.com in associated domains entitlement)
• Added Android App Links (intentFilters for https://app.cal.com/video/*)
• Added deep link URL listener in root layout handling both cold start (getInitialURL) and warm start (addEventListener("url"))

Review & Testing Checklist for Human

• Verify deep link → API resolution works end-to-end: Deep links pass a bookingUid to the video-call screen, which calls getBookingByUid() to resolve the Daily.co room URL. Confirm the API returns meetingUrl with a meetco.daily.co URL for Cal Video bookings. If the field name or shape differs, the resolution will silently fail and show "No meeting URL provided".
• Review deep link + auth interaction: The URL listener fires inside RootLayoutContent which gates on isAuthenticated. If a deep link arrives when the user is logged out, verify behavior is acceptable (currently it would try to push /video-call but the user would see the login screen, and the API call to resolve the booking UID would likely fail).
• Test on a real device/simulator: This integrates native WebRTC modules — lint/typecheck passing does not guarantee runtime correctness. Test joining an actual Cal Video call, verify camera/mic work, and test the leave flow.
• Server-side AASA & assetlinks setup required: iOS Universal Links need https://app.cal.com/.well-known/apple-app-site-association (bundle ID com.cal.companion, team ID ADWKXDJV75). Android App Links need https://app.cal.com/.well-known/assetlinks.json. Without these, OS-level deep linking will not activate.
• Verify @daily-co/react-native-webrtc@124.0.6-daily.1 compatibility with Expo SDK 55 / React Native 0.83.1.

Recommended test plan:

1. Build the app with bun run mobile:ios or bun run mobile:android
2. Open a booking that has a Cal Video meeting URL → should open native video call screen
3. Verify camera preview, mic toggle, camera flip, and leave button all work
4. Open a booking with a Zoom/Google Meet URL → should still open in browser
5. Test error state (e.g., invalid room URL) → should show error with "Go Back" button
6. Test deep link from Safari: tap https://app.cal.com/video/<booking-uid> → should resolve the booking and join the call natively (requires server-side AASA/assetlinks)

Notes

• No runtime testing was performed — only lint and typecheck verification.
• The server-side apple-app-site-association and assetlinks.json files must be deployed to app.cal.com for OS-level deep linking to activate. The client-side configuration is complete in this PR.
• resolveDailyRoomUrl() in cal-video.ts imports getBookingByUid from the services layer, making this utility file capable of async API calls. This is a deliberate design choice to keep the resolution logic centralized.

Link to Devin session: https://app.devin.ai/sessions/780a107626be4877919ffc13b29b1ead
Requested by: @PeerRich

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
cal-companion-chat	Ignored		Mar 30, 2026 2:10pm