From 04ab9f37801f6a42b85581cc79667239d3fc79e5 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Sat, 11 Feb 2023 14:24:29 +0100
Subject: wallet-core,harness: implement pay templating

---
 packages/taler-wallet-core/src/wallet.ts | 56 +++++++++++++++++++++++++++-----
 1 file changed, 48 insertions(+), 8 deletions(-)

(limited to 'packages/taler-wallet-core/src/wallet.ts')

diff --git a/packages/taler-wallet-core/src/wallet.ts b/packages/taler-wallet-core/src/wallet.ts
index f1ed592bd..57ae85c1c 100644
--- a/packages/taler-wallet-core/src/wallet.ts
+++ b/packages/taler-wallet-core/src/wallet.ts
@@ -56,8 +56,10 @@ import {
   codecForInitiatePeerPushPaymentRequest,
   codecForIntegrationTestArgs,
   codecForListKnownBankAccounts,
+  codecForMerchantPostOrderResponse,
   codecForPrepareDepositRequest,
   codecForPreparePayRequest,
+  codecForPreparePayTemplateRequest,
   codecForPreparePeerPullPaymentRequest,
   codecForPreparePeerPushPaymentRequest,
   codecForPrepareRefundRequest,
@@ -77,6 +79,7 @@ import {
   CoinDumpJson,
   CoinRefreshRequest,
   CoinStatus,
+  constructPayUri,
   CoreApiResponse,
   DenominationInfo,
   DenomOperationMap,
@@ -88,7 +91,6 @@ import {
   ExchangesListResponse,
   ExchangeTosStatusDetails,
   FeeDescription,
-  GetBalanceDetailRequest,
   GetExchangeTosResult,
   InitResponse,
   j2s,
@@ -96,7 +98,9 @@ import {
   KnownBankAccountsInfo,
   Logger,
   ManualWithdrawalDetails,
+  MerchantUsingTemplateDetails,
   NotificationType,
+  parsePayTemplateUri,
   parsePaytoUri,
   RefreshReason,
   TalerErrorCode,
@@ -156,11 +160,7 @@ import {
   runBackupCycle,
 } from "./operations/backup/index.js";
 import { setWalletDeviceId } from "./operations/backup/state.js";
-import {
-  getBalanceDetail,
-  getBalances,
-  getMerchantPaymentBalanceDetails,
-} from "./operations/balance.js";
+import { getBalanceDetail, getBalances } from "./operations/balance.js";
 import {
   getExchangeTosStatus,
   makeExchangeListItem,
@@ -186,7 +186,6 @@ import {
 } from "./operations/exchanges.js";
 import { getMerchantInfo } from "./operations/merchants.js";
 import {
-  abortPay as abortPay,
   applyRefund,
   applyRefundFromPurchaseId,
   confirmPay,
@@ -1171,11 +1170,50 @@ async function dispatchRequestInternal<Op extends WalletApiOperation>(
       await runPending(ws, true);
       return {};
     }
-    // FIXME: Deprecate one of the aliases!
     case WalletApiOperation.PreparePayForUri: {
       const req = codecForPreparePayRequest().decode(payload);
       return await preparePayForUri(ws, req.talerPayUri);
     }
+    case WalletApiOperation.PreparePayForTemplate: {
+      const req = codecForPreparePayTemplateRequest().decode(payload);
+      const url = parsePayTemplateUri(req.talerPayTemplateUri);
+      const templateDetails: MerchantUsingTemplateDetails = {};
+      if (!url) {
+        throw Error("invalid taler-template URI");
+      }
+      if (
+        url.templateParams.amount &&
+        typeof url.templateParams.amount === "string"
+      ) {
+        templateDetails.amount =
+          req.templateParams.amount ?? url.templateParams.amount;
+      }
+      if (
+        url.templateParams.summary &&
+        typeof url.templateParams.summary === "string"
+      ) {
+        templateDetails.summary =
+          req.templateParams.summary ?? url.templateParams.summary;
+      }
+      const reqUrl = new URL(
+        `templates/${url.templateId}`,
+        url.merchantBaseUrl,
+      );
+      const httpReq = await ws.http.postJson(reqUrl.href, templateDetails);
+      const resp = await readSuccessResponseJsonOrThrow(
+        httpReq,
+        codecForMerchantPostOrderResponse(),
+      );
+
+      const payUri = constructPayUri(
+        url.merchantBaseUrl,
+        resp.order_id,
+        "",
+        resp.token,
+      );
+
+      return await preparePayForUri(ws, payUri);
+    }
     case WalletApiOperation.ConfirmPay: {
       const req = codecForConfirmPayRequest().decode(payload);
       return await confirmPay(ws, req.proposalId, req.sessionId);
@@ -1434,6 +1472,8 @@ async function dispatchRequestInternal<Op extends WalletApiOperation>(
     case WalletApiOperation.GetVersion: {
       return getVersion(ws);
     }
+    //default:
+    //  assertUnreachable(operation);
   }
   throw TalerError.fromDetail(
     TalerErrorCode.WALLET_CORE_API_OPERATION_UNKNOWN,
-- 
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