wallet-core: report more info about (missing) fees

1 files changed, 38 insertions, 0 deletions

diff --git a/packages/taler-wallet-core/src/coinSelection.ts b/packages/taler-wallet-core/src/coinSelection.ts
index 7c22f63db..cf323e586 100644
--- a/packages/taler-wallet-core/src/coinSelection.ts
+++ b/packages/taler-wallet-core/src/coinSelection.ts
@@ -36,6 +36,7 @@ import {
   checkLogicInvariant,
   CoinStatus,
   DenominationInfo,
+  ExchangeGlobalFees,
   ForcedCoinSel,
   InternationalizedString,
   j2s,
@@ -400,6 +401,16 @@ export async function reportInsufficientBalanceDetails(
     if (!exch.detailsPointer) {
       continue;
     }
+    let missingGlobalFees = false;
+    const exchWire = await getExchangeWireDetailsInTx(tx, exch.baseUrl);
+    if (!exchWire) {
+      missingGlobalFees = true;
+    } else {
+      const globalFees = getGlobalFees(exchWire);
+      if (!globalFees) {
+        missingGlobalFees = true;
+      }
+    }
     const exchDet = await getPaymentBalanceDetailsInTx(wex, tx, {
       restrictExchanges: {
         exchanges: [
@@ -431,6 +442,7 @@ export async function reportInsufficientBalanceDetails(
       maxEffectiveSpendAmount: Amounts.stringify(
         exchDet.maxEffectiveSpendAmount,
       ),
+      missingGlobalFees,
     };
   }
 
@@ -900,6 +912,24 @@ export function emptyTallyForPeerPayment(
   };
 }
 
+function getGlobalFees(
+  wireDetails: ExchangeWireDetails,
+): ExchangeGlobalFees | undefined {
+  const now = AbsoluteTime.now();
+  for (let gf of wireDetails.globalFees) {
+    const isActive = AbsoluteTime.isBetween(
+      now,
+      AbsoluteTime.fromProtocolTimestamp(gf.startDate),
+      AbsoluteTime.fromProtocolTimestamp(gf.endDate),
+    );
+    if (!isActive) {
+      continue;
+    }
+    return gf;
+  }
+  return undefined;
+}
+
 export async function selectPeerCoins(
   wex: WalletExecutionContext,
   req: PeerCoinSelectionRequest,
@@ -928,6 +958,14 @@ export async function selectPeerCoins(
         if (exch.detailsPointer?.currency !== currency) {
           continue;
         }
+        const exchWire = await getExchangeWireDetailsInTx(tx, exch.baseUrl);
+        if (!exchWire) {
+          continue;
+        }
+        const globalFees = getGlobalFees(exchWire);
+        if (!globalFees) {
+          continue;
+        }
         const candidatesRes = await selectPayCandidates(wex, tx, {
           instructedAmount,
           restrictExchanges: {