fix email sender all flow

server/services/trip.service.ts

@@ -458,7 +458,14 @@ export const tripService = {
     return runSerializable(async (tx) => {
       const trip = await tx.trip.findUnique({
         where: { id: tripId },
-        select: { id: true, status: true, organizerId: true, date: true },
+        select: {
+          id: true,
+          status: true,
+          organizerId: true,
+          date: true,
+          title: true,
+          organizer: { select: { id: true, email: true, name: true } },
+        },
       });
       if (!trip) {
         throw new Error("Trip tidak ditemukan");
@@ -500,6 +507,8 @@ export const tripService = {
       const refundsCreated: string[] = [];
       const cancelledBookings: string[] = [];
       const skippedBookings: string[] = [];
+      // userId → nominal refund yang dibuat untuk dia (untuk email pembatalan).
+      const refundByUser = new Map<string, number>();
 
       for (const b of bookings) {
         if (b.status === "CANCELLED" || b.status === "EXPIRED") {
@@ -540,6 +549,7 @@ export const tripService = {
             }
           );
           refundsCreated.push(refund.id);
+          refundByUser.set(b.userId, remaining);
 
           // Trip dibatalkan → cancel payout HELD/RELEASED organizer untuk
           // booking ini. Payout PAID di-flag clawback otomatis.
@@ -560,6 +570,12 @@ export const tripService = {
         }
       }
 
+      // Snapshot peserta aktif SEBELUM di-cancel — untuk notifikasi email.
+      const activeParticipants = await tx.tripParticipant.findMany({
+        where: { tripId, status: { not: "CANCELLED" } },
+        select: { user: { select: { id: true, email: true, name: true } } },
+      });
+
       // Semua participant aktif → CANCELLED (apapun status booking-nya).
       await tx.tripParticipant.updateMany({
         where: { tripId, status: { not: "CANCELLED" } },
@@ -586,6 +602,17 @@ export const tripService = {
         refundsCreated,
         cancelledBookings,
         skippedBookings,
+        // Data penerima notifikasi — email dikirim oleh action setelah tx commit.
+        notify: {
+          tripTitle: trip.title,
+          organizer: trip.organizer,
+          participants: activeParticipants.map((p) => ({
+            userId: p.user.id,
+            email: p.user.email,
+            name: p.user.name,
+            refundAmount: refundByUser.get(p.user.id) ?? 0,
+          })),
+        },
       };
     }, "Gagal membatalkan trip. Coba lagi sebentar.");
   },