taler-typescript-core

commit 93ea97532b11cfd98eb9bc841c59478b057675ca
parent 3b82b22828ce33fcebdec5f479397ff08086130f
Author: Florian Dold <florian@dold.me>
Date:   Sun, 24 Aug 2025 22:22:25 +0200

wallet-core: dev experiment for noFees flag

Diffstat:
M
packages/taler-wallet-core/src/dev-experiments.ts
 | 
15
+++++++++++++++
M
packages/taler-wallet-core/src/exchanges.ts
 | 
11
++++++++++-
M
packages/taler-wallet-core/src/wallet.ts
 | 
4
++++

3 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/packages/taler-wallet-core/src/dev-experiments.ts b/packages/taler-wallet-core/src/dev-experiments.ts
@@ -267,6 +267,21 @@ export async function applyDevExperiment(
       });
       return;
     }
+    case "pretend-no-fees": {
+      const setVal = parsedUri.query?.get("val");
+      let v: boolean;
+      if (setVal == null) {
+        v = true;
+      } else if (setVal === "1") {
+        v = true;
+      } else if (setVal === "0") {
+        v = false;
+      } else {
+        throw Error("invalid val");
+      }
+      wex.ws.devExperimentState.pretendNoFees = v;
+      return;
+    }
     case "flag-confirm-pay-no-wait": {
       const setVal = parsedUri.query?.get("val");
       if (setVal === "0") {
diff --git a/packages/taler-wallet-core/src/exchanges.ts b/packages/taler-wallet-core/src/exchanges.ts
@@ -473,6 +473,7 @@ function getKycStatusFromReserveStatus(
 }
 
 async function makeExchangeListItem(
+  wex: WalletExecutionContext,
   tx: WalletDbReadOnlyTransaction<
     ["globalCurrencyExchanges", "globalCurrencyAuditors"]
   >,
@@ -498,10 +499,16 @@ async function makeExchangeListItem(
       ? getKycStatusFromReserveStatus(reserveRec.status)
       : undefined;
 
+  let noFees = r.noFees ?? false;
+
+  if (wex.ws.devExperimentState.pretendNoFees) {
+    noFees = true;
+  }
+
   const listItem: ExchangeListItem = {
     exchangeBaseUrl: r.baseUrl,
     masterPub: exchangeDetails?.masterPublicKey,
-    noFees: r.noFees ?? false,
+    noFees,
     peerPaymentsDisabled: r.peerPaymentsDisabled ?? false,
     currency: exchangeDetails?.currency ?? r.presetCurrencyHint ?? "UNKNOWN",
     exchangeUpdateStatus: getExchangeUpdateStatusFromRecord(r),
@@ -601,6 +608,7 @@ export async function lookupExchangeByUri(
         checkDbInvariant(!!reserveRec, "reserve record not found");
       }
       return await makeExchangeListItem(
+        wex,
         tx,
         exchangeRec,
         exchangeDetails,
@@ -2793,6 +2801,7 @@ export async function listExchanges(
           }
         }
         const li = await makeExchangeListItem(
+          wex,
           tx,
           exchangeRec,
           exchangeDetails,
diff --git a/packages/taler-wallet-core/src/wallet.ts b/packages/taler-wallet-core/src/wallet.ts
@@ -2639,6 +2639,10 @@ export class Wallet {
 
 export interface DevExperimentState {
   blockRefreshes?: boolean;
+  /**
+   * Pretend that exchanges have no fees.
+   */
+  pretendNoFees?: boolean;
   merchantDepositInsufficient?: boolean;
   /** Map from base URL to faked version for /config or /keys */
   fakeProtoVer?: Map<