From 1fceb13517106a65c3fb1d7398303e5da0dab77d Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Thu, 12 Jan 2023 11:22:37 +0100
Subject: [PATCH] wallet-core: allow zero amounts in payments again

---
 packages/taler-wallet-core/src/operations/common.ts         | 6 ++++++
 .../src/wallet/Transaction.stories.tsx                      | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/packages/taler-wallet-core/src/operations/common.ts b/packages/taler-wallet-core/src/operations/common.ts
index 96009eb0b..31c1bebb2 100644
--- a/packages/taler-wallet-core/src/operations/common.ts
+++ b/packages/taler-wallet-core/src/operations/common.ts
@@ -115,6 +115,12 @@ export async function spendCoins(
   }>,
   csi: CoinsSpendInfo,
 ): Promise<void> {
+  if (csi.coinPubs.length != csi.contributions.length) {
+    throw Error("assertion failed");
+  }
+  if (csi.coinPubs.length === 0) {
+    return;
+  }
   let refreshCoinPubs: CoinRefreshRequest[] = [];
   for (let i = 0; i < csi.coinPubs.length; i++) {
     const coin = await tx.coins.get(csi.coinPubs[i]);
diff --git a/packages/taler-wallet-webextension/src/wallet/Transaction.stories.tsx b/packages/taler-wallet-webextension/src/wallet/Transaction.stories.tsx
index f2ebb3919..fea96a02c 100644
--- a/packages/taler-wallet-webextension/src/wallet/Transaction.stories.tsx
+++ b/packages/taler-wallet-webextension/src/wallet/Transaction.stories.tsx
@@ -21,6 +21,7 @@
 
 import {
   AbsoluteTime,
+  ExtendedStatus,
   PaymentStatus,
   TalerProtocolTimestamp,
   TransactionCommon,
@@ -60,6 +61,7 @@ export default {
 const commonTransaction = {
   amountRaw: "KUDOS:11",
   amountEffective: "KUDOS:9.2",
+  extendedStatus: ExtendedStatus.Done,
   pending: false,
   timestamp: TalerProtocolTimestamp.now(),
   transactionId: "txn:deposit:12",