[taler-wallet-core] 02/02: wallet-core: only schedule auto-refresh check if exchange update has no last error

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dold pushed a commit to branch master
in repository wallet-core.

commit 59bc54422f3e9aa7a487705489f6755e02ff5c0a
Author: Florian Dold <florian@dold.me>
AuthorDate: Tue May 31 15:44:22 2022 +0200

    wallet-core: only schedule auto-refresh check if exchange update has no 
last error
---
 .../taler-wallet-core/src/operations/pending.ts    | 18 ++++----
 .../taler-wallet-core/src/operations/refresh.ts    | 49 ++++++++++++++--------
 2 files changed, 42 insertions(+), 25 deletions(-)

diff --git a/packages/taler-wallet-core/src/operations/pending.ts 
b/packages/taler-wallet-core/src/operations/pending.ts
index b89c7c64..0a262d3b 100644
--- a/packages/taler-wallet-core/src/operations/pending.ts
+++ b/packages/taler-wallet-core/src/operations/pending.ts
@@ -57,14 +57,16 @@ async function gatherExchangePending(
       lastError: e.lastError,
     });
 
-    resp.pendingOperations.push({
-      type: PendingTaskType.ExchangeCheckRefresh,
-      timestampDue:
-        e.retryInfo?.nextRetry ??
-        AbsoluteTime.fromTimestamp(e.nextRefreshCheck),
-      givesLifeness: false,
-      exchangeBaseUrl: e.baseUrl,
-    });
+    // We only schedule a check for auto-refresh if the exchange update
+    // was successful.
+    if (!e.lastError) {
+      resp.pendingOperations.push({
+        type: PendingTaskType.ExchangeCheckRefresh,
+        timestampDue: AbsoluteTime.fromTimestamp(e.nextRefreshCheck),
+        givesLifeness: false,
+        exchangeBaseUrl: e.baseUrl,
+      });
+    }
   });
 }
 
diff --git a/packages/taler-wallet-core/src/operations/refresh.ts 
b/packages/taler-wallet-core/src/operations/refresh.ts
index 0dfcef42..fc90b608 100644
--- a/packages/taler-wallet-core/src/operations/refresh.ts
+++ b/packages/taler-wallet-core/src/operations/refresh.ts
@@ -15,26 +15,41 @@
  */
 
 import {
-  AbsoluteTime, AgeCommitment,
-  AgeRestriction, AmountJson, Amounts, amountToPretty, 
codecForExchangeMeltResponse,
+  AbsoluteTime,
+  AgeCommitment,
+  AgeRestriction,
+  AmountJson,
+  Amounts,
+  amountToPretty,
+  codecForExchangeMeltResponse,
   codecForExchangeRevealResponse,
-  CoinPublicKey, CoinPublicKeyString,
-  DenomKeyType, Duration,
+  CoinPublicKey,
+  CoinPublicKeyString,
+  DenomKeyType,
+  Duration,
   durationFromSpec,
-  durationMul, encodeCrock,
+  durationMul,
+  encodeCrock,
   ExchangeMeltRequest,
-  ExchangeProtocolVersion, ExchangeRefreshRevealRequest, fnutil, 
getRandomBytes,
+  ExchangeProtocolVersion,
+  ExchangeRefreshRevealRequest,
+  fnutil,
+  getRandomBytes,
   HashCodeString,
   HttpStatusCode,
-  j2s, Logger, NotificationType,
+  j2s,
+  Logger,
+  NotificationType,
   RefreshGroupId,
   RefreshReason,
-  TalerErrorDetail, TalerProtocolTimestamp, URL
+  TalerErrorDetail,
+  TalerProtocolTimestamp,
+  URL,
 } from "@gnu-taler/taler-util";
 import { TalerCryptoInterface } from "../crypto/cryptoImplementation.js";
 import {
   DerivedRefreshSession,
-  RefreshNewDenomInfo
+  RefreshNewDenomInfo,
 } from "../crypto/cryptoTypes.js";
 import { CryptoApiStoppedError } from "../crypto/workers/cryptoDispatcher.js";
 import {
@@ -45,28 +60,26 @@ import {
   OperationStatus,
   RefreshCoinStatus,
   RefreshGroupRecord,
-  WalletStoresV1
+  WalletStoresV1,
 } from "../db.js";
 import { TalerError } from "../errors.js";
 import {
   DenomInfo,
   EXCHANGE_COINS_LOCK,
-  InternalWalletState
+  InternalWalletState,
 } from "../internal-wallet-state.js";
 import {
   readSuccessResponseJsonOrThrow,
-  readUnexpectedResponseDetails
+  readUnexpectedResponseDetails,
 } from "../util/http.js";
 import { checkDbInvariant } from "../util/invariants.js";
 import { GetReadWriteAccess } from "../util/query.js";
-import {
-  RetryInfo
-} from "../util/retries.js";
+import { RetryInfo } from "../util/retries.js";
 import { guardOperationException } from "./common.js";
 import { updateExchangeFromUrl } from "./exchanges.js";
 import {
   isWithdrawableDenom,
-  selectWithdrawalDenominations
+  selectWithdrawalDenominations,
 } from "./withdraw.js";
 
 const logger = new Logger("refresh.ts");
@@ -1023,10 +1036,12 @@ export async function autoRefresh(
 ): Promise<void> {
   logger.info(`doing auto-refresh check for '${exchangeBaseUrl}'`);
 
-  //updateExchangeFromUrl will also update retryInfo for this operation
+  // We must make sure that the exchange is up-to-date so that
+  // can refresh into new denominations.
   await updateExchangeFromUrl(ws, exchangeBaseUrl, {
     forceNow: true,
   });
+
   let minCheckThreshold = AbsoluteTime.addDuration(
     AbsoluteTime.now(),
     durationFromSpec({ days: 1 }),

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