Share funktion

server/index.js

@@ -46,6 +46,7 @@ const {
 const {
   chargeKey,
   consumeCreditsWithIdempotency,
+  refundCreditsWithIdempotency,
   endpointKey,
   ensureBillingSchema,
   getAccountSnapshot,
@@ -757,9 +758,11 @@ app.post('/v1/billing/sync-revenuecat', async (request, response) => {
 
 app.post('/v1/scan', async (request, response) => {
   let userId = 'unknown';
+  let idempotencyKey = null;
+  let creditsCharged = 0;
   try {
     userId = ensureRequestAuth(request);
-    const idempotencyKey = ensureNonEmptyString(resolveIdempotencyKey(request), 'Idempotency-Key header');
+    idempotencyKey = ensureNonEmptyString(resolveIdempotencyKey(request), 'Idempotency-Key header');
     const imageUri = ensureNonEmptyString(request.body?.imageUri, 'imageUri');
     const language = normalizeLanguage(request.body?.language);
     const endpointId = endpointKey('scan', userId, idempotencyKey);
@@ -770,7 +773,6 @@ app.post('/v1/scan', async (request, response) => {
       return;
     }
 
-    let creditsCharged = 0;
     const modelPath = [];
     let modelUsed = null;
     let modelFallbackCount = 0;
@@ -936,6 +938,19 @@ app.post('/v1/scan', async (request, response) => {
     response.status(200).json(payload);
   } catch (error) {
     console.error(`Scan error for user ${userId}:`, error);
+    if (error?.code === 'NOT_A_PLANT' && creditsCharged > 0 && idempotencyKey) {
+      try {
+        const refunded = await refundCreditsWithIdempotency(
+          db,
+          userId,
+          chargeKey('scan-refund', userId, idempotencyKey),
+          creditsCharged,
+        );
+        console.log(`Refunded ${refunded} credit(s) for user ${userId} (NOT_A_PLANT)`);
+      } catch (refundError) {
+        console.error(`Failed to refund credits for user ${userId} (NOT_A_PLANT):`, refundError);
+      }
+    }
     const payload = toApiErrorPayload(error);
     response.status(payload.status).json(payload.body);
   }