taler-typescript-core

commit b6f88a19427b853746be237fcdb6f0a45f7735f7
parent 54a553caba82eff2c3e0e47c15b53167c55ff1c9
Author: Florian Dold <florian@dold.me>
Date:   Wed,  7 Aug 2024 21:02:35 +0200

wallet-core: implement getBankingChoicesForPayto

Diffstat:
M
packages/taler-util/src/types-taler-wallet.ts
 | 
20
++++++++++++++++++++
M
packages/taler-wallet-core/src/wallet-api-types.ts
 | 
10
++++++++++
M
packages/taler-wallet-core/src/wallet.ts
 | 
51
+++++++++++++++++++++++++++++++++++++++++++++++++++

3 files changed, 81 insertions(+), 0 deletions(-)
diff --git a/packages/taler-util/src/types-taler-wallet.ts b/packages/taler-util/src/types-taler-wallet.ts
@@ -3559,6 +3559,26 @@ export interface GetQrCodesForPaytoResponse {
   codes: QrCodeSpec[];
 }
 
+export interface GetBankingChoicesForPaytoRequest {
+  paytoUri: string;
+}
+
+export const codecForGetBankingChoicesForPaytoRequest = () =>
+  buildCodecForObject<GetBankingChoicesForPaytoRequest>()
+    .property("paytoUri", codecForString())
+    .build("GetBankingChoicesForPaytoRequest");
+
+export interface BankingChoiceSpec {
+  label: string;
+  // FIXME: In the future, we might also have some way to return intents here?
+  type: "weblink" | "deeplink";
+  uri: string;
+}
+
+export interface GetBankingChoicesForPaytoResponse {
+  choices: BankingChoiceSpec[];
+}
+
 export type EmptyObject = Record<string, never>;
 
 export const codecForEmptyObject = (): Codec<EmptyObject> =>
diff --git a/packages/taler-wallet-core/src/wallet-api-types.ts b/packages/taler-wallet-core/src/wallet-api-types.ts
@@ -71,6 +71,8 @@ import {
   GetActiveTasksResponse,
   GetAmountRequest,
   GetBalanceDetailRequest,
+  GetBankingChoicesForPaytoRequest,
+  GetBankingChoicesForPaytoResponse,
   GetContractTermsDetailsRequest,
   GetCurrencySpecificationRequest,
   GetCurrencySpecificationResponse,
@@ -271,6 +273,7 @@ export enum WalletApiOperation {
   CanonicalizeBaseUrl = "canonicalizeBaseUrl",
   GetDepositWireTypesForCurrency = "getDepositWireTypesForCurrency",
   GetQrCodesForPayto = "getQrCodesForPayto",
+  GetBankingChoicesForPayto = "getBankingChoicesForPayto",
   TestingWaitTransactionsFinal = "testingWaitTransactionsFinal",
   TestingWaitRefreshesFinal = "testingWaitRefreshesFinal",
   TestingWaitTransactionState = "testingWaitTransactionState",
@@ -998,6 +1001,12 @@ export type GetQrCodesForPaytoOp = {
   response: GetQrCodesForPaytoResponse;
 };
 
+export type GetBankingChoicesForPaytoOp = {
+  op: WalletApiOperation.GetBankingChoicesForPayto;
+  request: GetBankingChoicesForPaytoRequest;
+  response: GetBankingChoicesForPaytoResponse;
+};
+
 // group: Database Management
 
 /**
@@ -1358,6 +1367,7 @@ export type WalletOperations = {
   [WalletApiOperation.HintNetworkAvailability]: HintNetworkAvailabilityOp;
   [WalletApiOperation.GetDepositWireTypesForCurrency]: GetDepositWireTypesForCurrencyOp;
   [WalletApiOperation.GetQrCodesForPayto]: GetQrCodesForPaytoOp;
+  [WalletApiOperation.GetBankingChoicesForPayto]: GetBankingChoicesForPaytoOp;
 };
 
 export type WalletCoreRequestType<
diff --git a/packages/taler-wallet-core/src/wallet.ts b/packages/taler-wallet-core/src/wallet.ts
@@ -57,6 +57,8 @@ import {
   FailTransactionRequest,
   ForgetKnownBankAccountsRequest,
   GetActiveTasksResponse,
+  GetBankingChoicesForPaytoRequest,
+  GetBankingChoicesForPaytoResponse,
   GetContractTermsDetailsRequest,
   GetCurrencySpecificationRequest,
   GetCurrencySpecificationResponse,
@@ -147,6 +149,7 @@ import {
   codecForForgetKnownBankAccounts,
   codecForGetAmountRequest,
   codecForGetBalanceDetailRequest,
+  codecForGetBankingChoicesForPaytoRequest,
   codecForGetContractTermsDetails,
   codecForGetCurrencyInfoRequest,
   codecForGetDepositWireTypesForCurrencyRequest,
@@ -1056,6 +1059,50 @@ async function handleGetQrCodesForPayto(
   };
 }
 
+async function handleGetBankingChoicesForPayto(
+  wex: WalletExecutionContext,
+  req: GetBankingChoicesForPaytoRequest,
+): Promise<GetBankingChoicesForPaytoResponse> {
+  const parsedPayto = parsePaytoUri(req.paytoUri);
+  if (!parsedPayto) {
+    throw Error("invalid payto URI");
+  }
+  const amount = parsedPayto.params["amount"];
+  if (!amount) {
+    logger.warn("payto URI has no amount");
+    return {
+      choices: [],
+    };
+  }
+  const currency = Amounts.currencyOf(amount);
+  switch (currency) {
+    case "KUDOS":
+      return {
+        choices: [
+          {
+            label: "Demobank Website",
+            type: "weblink",
+            uri: `https://bank.demo.taler.net/webui/#/transfer/${encodeURIComponent(
+              req.paytoUri,
+            )}`,
+          },
+          {
+            label: "Demobank App",
+            type: "deeplink",
+            uri: `https://bank.demo.taler.net/app/transfer/${encodeURIComponent(
+              req.paytoUri,
+            )}`,
+          },
+        ],
+      };
+      break;
+    default:
+      return {
+        choices: [],
+      };
+  }
+}
+
 async function handleConfirmPay(
   wex: WalletExecutionContext,
   req: ConfirmPayRequest,
@@ -2051,6 +2098,10 @@ const handlers: { [T in WalletApiOperation]: HandlerWithValidator<T> } = {
       throw Error("not implemented");
     },
   },
+  [WalletApiOperation.GetBankingChoicesForPayto]: {
+    codec: codecForGetBankingChoicesForPaytoRequest(),
+    handler: handleGetBankingChoicesForPayto,
+  },
 };
 
 /**