1 files changed, 19 insertions, 8 deletions
diff --git a/packages/taler-wallet-core/src/operations/pay-peer-pull-credit.ts b/packages/taler-wallet-core/src/operations/pay-peer-pull-credit.ts
index 0355eb152..6ec8822ab 100644
--- a/packages/taler-wallet-core/src/operations/pay-peer-pull-credit.ts
+++ b/packages/taler-wallet-core/src/operations/pay-peer-pull-credit.ts
@@ -60,6 +60,9 @@ import {
   PeerPullPaymentCreditStatus,
   WithdrawalGroupStatus,
   WithdrawalRecordType,
+  timestampOptionalPreciseFromDb,
+  timestampPreciseFromDb,
+  timestampPreciseToDb,
   updateExchangeFromUrl,
 } from "../index.js";
 import { InternalWalletState } from "../internal-wallet-state.js";
@@ -395,12 +398,14 @@ async function handlePeerPullCreditCreatePurse(
     nonce: pullIni.contractEncNonce,
   });
 
+  const mergeTimestamp = timestampPreciseFromDb(pullIni.mergeTimestamp);
+
   const purseExpiration = contractTerms.purse_expiration;
   const sigRes = await ws.cryptoApi.signReservePurseCreate({
     contractTermsHash: pullIni.contractTermsHash,
     flags: WalletAccountMergeFlags.CreateWithPurseFee,
     mergePriv: pullIni.mergePriv,
-    mergeTimestamp: TalerPreciseTimestamp.round(pullIni.mergeTimestamp),
+    mergeTimestamp: TalerPreciseTimestamp.round(mergeTimestamp),
     purseAmount: pullIni.amount,
     purseExpiration: purseExpiration,
     purseFee: purseFee,
@@ -412,7 +417,7 @@ async function handlePeerPullCreditCreatePurse(
 
   const reservePurseReqBody: ExchangeReservePurseRequest = {
     merge_sig: sigRes.mergeSig,
-    merge_timestamp: TalerPreciseTimestamp.round(pullIni.mergeTimestamp),
+    merge_timestamp: TalerPreciseTimestamp.round(mergeTimestamp),
     h_contract_terms: pullIni.contractTermsHash,
     merge_pub: pullIni.mergePub,
     min_age: 0,
@@ -695,11 +700,17 @@ async function getPreferredExchangeForCurrency(
         if (candidate.lastWithdrawal && !e.lastWithdrawal) {
           continue;
         }
-        if (candidate.lastWithdrawal && e.lastWithdrawal) {
+        const exchangeLastWithdrawal = timestampOptionalPreciseFromDb(
+          e.lastWithdrawal,
+        );
+        const candidateLastWithdrawal = timestampOptionalPreciseFromDb(
+          candidate.lastWithdrawal,
+        );
+        if (exchangeLastWithdrawal && candidateLastWithdrawal) {
           if (
             AbsoluteTime.cmp(
-              AbsoluteTime.fromPreciseTimestamp(e.lastWithdrawal),
-              AbsoluteTime.fromPreciseTimestamp(candidate.lastWithdrawal),
+              AbsoluteTime.fromPreciseTimestamp(exchangeLastWithdrawal),
+              AbsoluteTime.fromPreciseTimestamp(candidateLastWithdrawal),
             ) > 0
           ) {
             candidate = e;
@@ -741,8 +752,6 @@ export async function initiatePeerPullPayment(
     exchangeBaseUrl: exchangeBaseUrl,
   });
 
-  const mergeTimestamp = TalerPreciseTimestamp.now();
-
   const pursePair = await ws.cryptoApi.createEddsaKeypair({});
   const mergePair = await ws.cryptoApi.createEddsaKeypair({});
 
@@ -766,6 +775,8 @@ export async function initiatePeerPullPayment(
     undefined,
   );
 
+  const mergeTimestamp = TalerPreciseTimestamp.now();
+
   const transitionInfo = await ws.db
     .mktx((x) => [x.peerPullCredit, x.contractTerms])
     .runReadWrite(async (tx) => {
@@ -778,7 +789,7 @@ export async function initiatePeerPullPayment(
         mergePriv: mergePair.priv,
         mergePub: mergePair.pub,
         status: PeerPullPaymentCreditStatus.PendingCreatePurse,
-        mergeTimestamp,
+        mergeTimestamp: timestampPreciseToDb(mergeTimestamp),
         contractEncNonce,
         mergeReserveRowId: mergeReserveRowId,
         contractPriv: contractKeyPair.priv,