From c1e02249d6f8511b70f02c049f297e6cc9d4ac86 Mon Sep 17 00:00:00 2001
From: Mannu <manohar6839@gmail.com>
Date: Sat, 30 May 2026 22:52:05 +0530
Subject: [PATCH] fix: home page vaccine reminder showing "undefined due today"
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Two stacked causes:

1. ROOT CAUSE (home page field mismatch): the DB-backed notifications rewrite
   (678cf65) changed the API response shape, but the home page banner still read
   the OLD fields. It checked `notif.status === "overdue"` (no longer returned —
   now it's `title`) so it always fell to the else branch `${notif.vaccineName}
   due today`, and `vaccineName` no longer exists at top level (now in
   `metadata.vaccineName`) → rendered "undefined due today".
   Fix: render the complete server-built `message` ("BCG is N days overdue" /
   "BCG is due today"). Also filter to vaccine_* notifications so the banner can't
   show a log/memory/garment nudge under a "Vaccine Reminder" header.

2. Stale message data: an earlier generator had stored "undefined …" in the
   message itself, frozen by ON CONFLICT DO NOTHING. Delete legacy "undefined%"
   rows and switch vaccine upsert to DO UPDATE so messages (and overdue
   day-counts) stay correct instead of freezing the first version. is_read / id /
   created_at preserved.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 src/app/(app)/home/page.tsx        |  4 +---
 src/app/api/notifications/route.ts | 12 +++++++++++-
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/app/(app)/home/page.tsx b/src/app/(app)/home/page.tsx
index 450d4d8..c189508 100644
--- a/src/app/(app)/home/page.tsx
+++ b/src/app/(app)/home/page.tsx
@@ -401,9 +401,7 @@ export default function HomePage() {
             <div>
               <div className="font-semibold text-red-700">💊 Vaccine Reminder</div>
               <div className="text-sm text-red-600">
-                {vaccineReminders[0].status === "overdue"
-                  ? `${vaccineReminders[0].message}`
-                  : `${vaccineReminders[0].vaccineName} due today`}
+                {vaccineReminders[0].message}
               </div>
             </div>
             <span className="text-red-400">→</span>
diff --git a/src/app/api/notifications/route.ts b/src/app/api/notifications/route.ts
index 607a062..dfb32cf 100644
--- a/src/app/api/notifications/route.ts
+++ b/src/app/api/notifications/route.ts
@@ -83,6 +83,12 @@ export async function GET(request: NextRequest) {
     const child     = children[0];
     const birthDate = new Date(child.birth_date as string);
 
+    // Self-heal legacy data: an earlier generator stored "undefined" in the
+    // message ("undefined is N days overdue"). Those rows were frozen by
+    // ON CONFLICT DO NOTHING. Delete them so the upsert below regenerates them
+    // with the correct vaccine name.
+    await sql`DELETE FROM notifications WHERE family_id = ${familyId} AND message LIKE 'undefined%'`;
+
     // ── 1. Vaccine notifications ──────────────────────────────────────────────
     const given = await sql`
       SELECT vaccine_name FROM vaccinations
@@ -118,7 +124,11 @@ export async function GET(request: NextRequest) {
           ${dueDateStr}::date,
           ${JSON.stringify({ vaccineName: v.name, dueDate: dueDateStr })}::jsonb
         )
-        ON CONFLICT (family_id, child_id, type, scheduled_for) DO NOTHING
+        ON CONFLICT (family_id, child_id, type, scheduled_for) DO UPDATE SET
+          title      = EXCLUDED.title,
+          message    = EXCLUDED.message,
+          action_url = EXCLUDED.action_url,
+          metadata   = EXCLUDED.metadata
       `;
     }