From 671bbf29548e2ec078b29e75e368d77ee7bdb81f Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Mon, 2 Oct 2023 22:48:29 +0200
Subject: [PATCH] wallet-core: implement explicit updateExchangeEntry request

---
 packages/taler-util/src/wallet-types.ts            |  9 +++++++++
 packages/taler-wallet-core/src/wallet-api-types.ts | 12 ++++++++++++
 packages/taler-wallet-core/src/wallet.ts           |  9 +++++++--
 3 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/packages/taler-util/src/wallet-types.ts b/packages/taler-util/src/wallet-types.ts
index c5c2c375c..8fff8ae55 100644
--- a/packages/taler-util/src/wallet-types.ts
+++ b/packages/taler-util/src/wallet-types.ts
@@ -1601,6 +1601,15 @@ export const codecForAddExchangeRequest = (): Codec<AddExchangeRequest> =>
     .property("masterPub", codecOptional(codecForString()))
     .build("AddExchangeRequest");
 
+export interface UpdateExchangeEntryRequest {
+  exchangeBaseUrl: string;
+}
+
+export const codecForUpdateExchangeEntryRequest = (): Codec<UpdateExchangeEntryRequest> =>
+  buildCodecForObject<UpdateExchangeEntryRequest>()
+    .property("exchangeBaseUrl", codecForString())
+    .build("UpdateExchangeEntryRequest");
+
 export interface ForceExchangeUpdateRequest {
   exchangeBaseUrl: string;
 }
diff --git a/packages/taler-wallet-core/src/wallet-api-types.ts b/packages/taler-wallet-core/src/wallet-api-types.ts
index 6d66e7ad3..26e86f43f 100644
--- a/packages/taler-wallet-core/src/wallet-api-types.ts
+++ b/packages/taler-wallet-core/src/wallet-api-types.ts
@@ -110,6 +110,7 @@ import {
   TransactionsRequest,
   TransactionsResponse,
   TxIdResponse,
+  UpdateExchangeEntryRequest,
   UserAttentionByIdRequest,
   UserAttentionsCountResponse,
   UserAttentionsRequest,
@@ -222,6 +223,7 @@ export enum WalletApiOperation {
   CreateStoredBackup = "createStoredBackup",
   DeleteStoredBackup = "deleteStoredBackup",
   RecoverStoredBackup = "recoverStoredBackup",
+  UpdateExchangeEntry = "updateExchangeEntry",
 }
 
 // group: Initialization
@@ -557,6 +559,15 @@ export type AddExchangeOp = {
   response: EmptyObject;
 };
 
+/**
+ * Update an exchange entry.
+ */
+export type UpdateExchangeEntryOp = {
+  op: WalletApiOperation.UpdateExchangeEntry;
+  request: UpdateExchangeEntryRequest;
+  response: EmptyObject;
+};
+
 export type ListKnownBankAccountsOp = {
   op: WalletApiOperation.ListKnownBankAccounts;
   request: ListKnownBankAccountsRequest;
@@ -1125,6 +1136,7 @@ export type WalletOperations = {
   [WalletApiOperation.ListStoredBackups]: ListStoredBackupsOp;
   [WalletApiOperation.DeleteStoredBackup]: DeleteStoredBackupOp;
   [WalletApiOperation.RecoverStoredBackup]: RecoverStoredBackupsOp;
+  [WalletApiOperation.UpdateExchangeEntry]: UpdateExchangeEntryOp;
 };
 
 export type WalletCoreRequestType<
diff --git a/packages/taler-wallet-core/src/wallet.ts b/packages/taler-wallet-core/src/wallet.ts
index 496297021..44076667d 100644
--- a/packages/taler-wallet-core/src/wallet.ts
+++ b/packages/taler-wallet-core/src/wallet.ts
@@ -128,6 +128,7 @@ import {
   codecForTestingSetTimetravelRequest,
   setDangerousTimetravel,
   TestingWaitTransactionRequest,
+  codecForUpdateExchangeEntryRequest,
 } from "@gnu-taler/taler-util";
 import type { HttpRequestLibrary } from "@gnu-taler/taler-util/http";
 import { readSuccessResponseJsonOrThrow } from "@gnu-taler/taler-util/http";
@@ -1071,8 +1072,7 @@ async function dispatchRequestInternal<Op extends WalletApiOperation>(
     case WalletApiOperation.WithdrawTestkudos: {
       await withdrawTestBalance(ws, {
         amount: "TESTKUDOS:10",
-        bankAccessApiBaseUrl:
-          "https://bank.test.taler.net/",
+        bankAccessApiBaseUrl: "https://bank.test.taler.net/",
         exchangeBaseUrl: "https://exchange.test.taler.net/",
       });
       return {
@@ -1122,6 +1122,11 @@ async function dispatchRequestInternal<Op extends WalletApiOperation>(
       });
       return {};
     }
+    case WalletApiOperation.UpdateExchangeEntry: {
+      const req = codecForUpdateExchangeEntryRequest().decode(payload);
+      await updateExchangeFromUrl(ws, req.exchangeBaseUrl, {});
+      return {};
+    }
     case WalletApiOperation.ListExchanges: {
       return await getExchanges(ws);
     }