backend phase 15 & frontend phase 8

client/src/services/bookings/hooks/useSessionEvv.ts

@@ -0,0 +1,19 @@
+import { useQuery } from '@tanstack/react-query';
+import { bookingsApi } from '../apis';
+import { bookingKeys } from '../keys';
+import { SESSION_EVV_STALE_TIME } from '../constants';
+
+/**
+ * Per-session EVV detail (`booking_sessions/evv/{id}`) — the `checkInAt` + advisory `checkInAddressMatch`
+ * the EVV banner renders on the nurse's day surface (the booking-detail card reads these from the
+ * embedded session instead, so it doesn't need this). `enabled` lets the day surface fetch it only for
+ * sessions that already have EVV activity. EVV mutations `setQueryData` this key so the banner is instant.
+ */
+export function useSessionEvv(sessionId: number | undefined, options?: { enabled?: boolean }) {
+  return useQuery({
+    queryKey: bookingKeys.sessionEvv(sessionId ?? -1),
+    queryFn: () => bookingsApi.getSessionEvv(sessionId as number),
+    enabled: (options?.enabled ?? true) && sessionId != null && sessionId > 0,
+    staleTime: SESSION_EVV_STALE_TIME,
+  });
+}