From 5854aa37a914a57074a1a8d736c5408f8e370ad7 Mon Sep 17 00:00:00 2001
From: Matt <matt@letsbe.solutions>
Date: Wed, 4 Mar 2026 00:32:14 +0100
Subject: [PATCH] feat: prevent duplicate award pool notifications

Add notifiedAt field to AwardEligibility. notifyEligibleProjects now
skips already-notified entries and stamps notifiedAt after sending,
so re-clicking "Notify Pool" only emails newly added projects.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 .../migration.sql                                   |  2 ++
 prisma/schema.prisma                                |  3 +++
 src/server/routers/specialAward.ts                  | 13 +++++++++++--
 3 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 prisma/migrations/20260303232956_add_award_eligibility_notified_at/migration.sql

diff --git a/prisma/migrations/20260303232956_add_award_eligibility_notified_at/migration.sql b/prisma/migrations/20260303232956_add_award_eligibility_notified_at/migration.sql
new file mode 100644
index 0000000..350f800
--- /dev/null
+++ b/prisma/migrations/20260303232956_add_award_eligibility_notified_at/migration.sql
@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "AwardEligibility" ADD COLUMN     "notifiedAt" TIMESTAMP(3);
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 1feea7b..a5355c4 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -1622,6 +1622,9 @@ model AwardEligibility {
   confirmedAt DateTime?
   confirmedBy String?
 
+  // Pool notification tracking
+  notifiedAt DateTime?
+
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
 
diff --git a/src/server/routers/specialAward.ts b/src/server/routers/specialAward.ts
index d1816cb..5558d9a 100644
--- a/src/server/routers/specialAward.ts
+++ b/src/server/routers/specialAward.ts
@@ -1269,9 +1269,9 @@ export const specialAwardRouter = router({
         select: { id: true, name: true, description: true, status: true },
       })
 
-      // Get eligible projects with submitter + team members
+      // Get eligible projects that haven't been notified yet
       const eligibilities = await ctx.prisma.awardEligibility.findMany({
-        where: { awardId: input.awardId, eligible: true },
+        where: { awardId: input.awardId, eligible: true, notifiedAt: null },
         select: {
           id: true,
           projectId: true,
@@ -1365,6 +1365,15 @@ export const specialAwardRouter = router({
         }
       }
 
+      // Stamp notifiedAt on all processed eligibilities to prevent re-notification
+      const notifiedIds = eligibilities.map((e) => e.id)
+      if (notifiedIds.length > 0) {
+        await ctx.prisma.awardEligibility.updateMany({
+          where: { id: { in: notifiedIds } },
+          data: { notifiedAt: new Date() },
+        })
+      }
+
       await logAudit({
         prisma: ctx.prisma,
         userId: ctx.user.id,