The AuthState.isLoading derivation in auth-context.tsx covered the
OAuth redirect phase (loadingOAuth) but NOT the backend-sync phase
that runs after the OAuth callback returns
(syncingGoogleBackend / syncingFacebookBackend). Any UI that
read isLoading would incorrectly report "not loading" during
the backend token-exchange round-trip.
Add the two missing state.matches() lines so isLoading is true
for the entire OAuth login window (button click → OAuth redirect
→ callback → backend sync).
Note: in the current OAuth flow the user is on /chat during the
sync phase (NextAuth redirected them there), so the splash/auth
button is not actually visible to reflect the new true value.
The fix is still correct because:
- Conceptually aligned: any in-flight login op is "loading"
- Defense in depth: future UI on /chat that consumes isLoading
will get accurate feedback
- Non-regression: only makes isLoading more permissive (true more
often), never false-fires
A visible /chat overlay during the sync phase would be a separate,
larger change — noted in the planning doc but not in this commit.
- Splash Skip button now dispatches `AuthGuestLoginSubmitted` instead of
direct routing, keeping guest auth under the state machine
- Update PWA install dialog copy ("Add to Home Screen") and drop favicon
entry from manifest icons
- Add debug logging and routing sequence docs to splash-button
Move new AuthPlatform(provider).signIn() out of UI components and into
the auth state machine. UI now dispatches AuthGoogle/FacebookLoginSubmitted
events; a new oauthSignIn actor inside the machine calls next-auth/react's
signIn(provider). Errors and the OAuth redirect window are exposed via
the existing state.isLoading / state.errorMessage surface, removing the
local busy / error state in auth-facebook-panel.
Co-Authored-By: Claude <noreply@anthropic.com>
Replace the separate FacebookLogin and GoogleLogin classes with a single
AuthPlatform class that takes a provider name ("facebook" | "google") as a
constructor argument. This consolidates duplicate OAuth sign-in logic behind
one entry point while preserving the existing NextAuth flow.
- Add new src/lib/auth/auth_platform.ts exporting AuthPlatform and
AuthProvider type
- Update auth-facebook-panel.tsx and splash-button.tsx to use the new API
- Rename initialContext → initialState in the auth machine for consistency
- Update inline docs and comments to reference AuthPlatform
No behavioral change for end users; both providers still route through
NextAuth's signIn() with the same callbacks and cookies.