support for exchange-withdraw call to action, pending use case when the user need to specify the amount

1 files changed, 29 insertions, 2 deletions

diff --git a/packages/taler-wallet-webextension/src/cta/Withdraw/state.ts b/packages/taler-wallet-webextension/src/cta/Withdraw/state.ts
index 717d3ba6b..f19f32ec0 100644
--- a/packages/taler-wallet-webextension/src/cta/Withdraw/state.ts
+++ b/packages/taler-wallet-webextension/src/cta/Withdraw/state.ts
@@ -18,9 +18,12 @@
 import {
   AmountJson,
   Amounts,
+  ExchangeFullDetails,
   ExchangeListItem,
   ExchangeTosStatus,
   TalerError,
+  parseWithdrawExchangeUri,
+  stringifyWithdrawUri,
 } from "@gnu-taler/taler-util";
 import { WalletApiOperation } from "@gnu-taler/taler-wallet-core";
 import { useState } from "preact/hooks";
@@ -33,6 +36,7 @@ import { RecursiveState } from "../../utils/index.js";
 import { PropsFromParams, PropsFromURI, State } from "./index.js";
 
 export function useComponentStateFromParams({
+  talerExchangeWithdrawUri: maybeTalerUri,
   amount,
   cancel,
   onSuccess,
@@ -44,7 +48,29 @@ export function useComponentStateFromParams({
       WalletApiOperation.ListExchanges,
       {},
     );
-    return { amount: Amounts.parseOrThrow(amount), exchanges };
+    const uri = parseWithdrawExchangeUri(maybeTalerUri);
+    const exchangeByTalerUri = uri?.exchangeBaseUrl;
+    let ex: ExchangeFullDetails | undefined;
+    if (exchangeByTalerUri && uri.exchangePub) {
+      await api.wallet.call(WalletApiOperation.AddExchange, {
+        exchangeBaseUrl: exchangeByTalerUri,
+        masterPub: uri.exchangePub,
+      });
+      const info = await api.wallet.call(
+        WalletApiOperation.GetExchangeDetailedInfo,
+        {
+          exchangeBaseUrl: exchangeByTalerUri,
+        },
+      );
+
+      ex = info.exchange;
+    }
+    const chosenAmount = uri
+      ? uri.amount
+        ? Amounts.parseOrThrow(uri.amount)
+        : Amounts.parseOrThrow(`${ex ? ex.currency : "KUDOS"}:66`)
+      : Amounts.parseOrThrow(amount);
+    return { amount: chosenAmount, exchanges, exchange: ex };
   });
 
   if (!uriInfoHook) return { status: "loading", error: undefined };
@@ -60,6 +86,7 @@ export function useComponentStateFromParams({
   }
 
   const chosenAmount = uriInfoHook.response.amount;
+  const exchangeByTalerUri = uriInfoHook.response.exchange?.exchangeBaseUrl;
   const exchangeList = uriInfoHook.response.exchanges.exchanges;
 
   async function doManualWithdraw(
@@ -92,7 +119,7 @@ export function useComponentStateFromParams({
       undefined,
       chosenAmount,
       exchangeList,
-      undefined,
+      exchangeByTalerUri,
     );
 }