add payment and integration with midtrans

features/booking/actions.ts

@@ -3,6 +3,8 @@
 import { getServerSession } from "next-auth";
 import { authOptions } from "@/lib/auth";
 import { tripService } from "@/server/services/trip.service";
+import { paymentService } from "@/server/services/payment.service";
+import { bookingService } from "@/server/services/booking.service";
 import { revalidatePath } from "next/cache";
 
 export async function markParticipantPaidAction(tripId: string) {
@@ -23,6 +25,51 @@ export async function markParticipantPaidAction(tripId: string) {
   }
 }
 
+export type StartMidtransResponse =
+  | { error: string }
+  | {
+      success: true;
+      snapToken: string;
+      snapJsUrl: string;
+      clientKey: string;
+    };
+
+/**
+ * Mulai pembayaran online via Midtrans untuk trip tertentu. Resolve booking
+ * dari (tripId, userId) supaya client tidak perlu tahu bookingId.
+ */
+export async function startMidtransPaymentAction(
+  tripId: string
+): Promise<StartMidtransResponse> {
+  const session = await getServerSession(authOptions);
+  if (!session?.user) {
+    return { error: "Kamu harus login terlebih dahulu" };
+  }
+
+  try {
+    const booking = await bookingService.getByTripAndUser(
+      tripId,
+      session.user.id
+    );
+    if (!booking || booking.status === "CANCELLED") {
+      return { error: "Kamu tidak terdaftar di trip ini" };
+    }
+
+    const result = await paymentService.startMidtransPayment(
+      booking.id,
+      session.user.id
+    );
+    return {
+      success: true,
+      snapToken: result.snapToken,
+      snapJsUrl: result.snapJsUrl,
+      clientKey: result.clientKey,
+    };
+  } catch (err) {
+    return { error: (err as Error).message };
+  }
+}
+
 export async function confirmParticipantPaymentAction(
   tripId: string,
   participantId: string