1 files changed, 62 insertions, 37 deletions

diff --git a/packages/demobank-ui/src/hooks/circuit.ts b/packages/demobank-ui/src/hooks/circuit.ts
index 44edb4f8a..d0d180a53 100644
--- a/packages/demobank-ui/src/hooks/circuit.ts
+++ b/packages/demobank-ui/src/hooks/circuit.ts
@@ -18,7 +18,7 @@ import { useState } from "preact/hooks";
 import { MAX_RESULT_SIZE, PAGE_SIZE } from "../utils.js";
 import { useBackendState } from "./backend.js";
 
-import { AccessToken, AmountJson, AmountString, Amounts, OperationOk, TalerCoreBankErrorsByMethod, TalerCoreBankResultByMethod, TalerCorebankApi, TalerError, TalerHttpError } from "@gnu-taler/taler-util";
+import { AccessToken, AmountJson, AmountString, Amounts, OperationOk, TalerBankConversionResultByMethod, TalerCoreBankErrorsByMethod, TalerCoreBankResultByMethod, TalerCorebankApi, TalerError, TalerHttpError } from "@gnu-taler/taler-util";
 import _useSWR, { SWRHook } from "swr";
 import { useBankCoreApiContext } from "../context/config.js";
 import { assertUnreachable } from "../pages/WithdrawalOperationPage.js";
@@ -34,6 +34,7 @@ export type TransferCalculation = {
 };
 type EstimatorFunction = (
   amount: AmountJson,
+  currency: string,
   sellFee: AmountJson,
   sellRate: number,
 ) => Promise<TransferCalculation>;
@@ -43,50 +44,74 @@ type CashoutEstimators = {
   estimateByDebit: EstimatorFunction;
 };
 
+export function useConversionInfo() {
+  const { api, config } = useBankCoreApiContext()
+
+  async function fetcher() {
+    return await api.getConversionInfoAPI().getConfig()
+  }
+  const { data, error } = useSWR<TalerBankConversionResultByMethod<"getConfig">, TalerHttpError>(
+    !config.allow_conversion ? undefined : ["getConversionInfoAPI"], fetcher, {
+    refreshInterval: 0,
+    refreshWhenHidden: false,
+    revalidateOnFocus: false,
+    revalidateOnReconnect: false,
+    refreshWhenOffline: false,
+    errorRetryCount: 0,
+    errorRetryInterval: 1,
+    shouldRetryOnError: false,
+    keepPreviousData: true,
+  });
+
+  if (data) return data
+  if (error) return error;
+  return undefined;
+
+}
+
 export function useEstimator(): CashoutEstimators {
   const { state } = useBackendState();
   const { api } = useBankCoreApiContext();
   return {
-    estimateByCredit: async (amount, fee, rate) => {
-      const resp = await api.getCashoutRate({
-        credit: amount
-      });
-      if (resp.type === "fail") {
-        // can't happen
-        // not-supported: it should not be able to call this function
-        // wrong-calculation: we are using just one parameter
-        throw TalerError.fromDetail(resp.detail.code, {}, resp.detail.hint)
-      }
-      const credit = amount;
-      const _credit = { ...credit, currency: fee.currency };
-      const beforeFee = Amounts.sub(_credit, fee).amount;
+    estimateByCredit: async (fiatAmount, regionalCurrency, fee, rate) => {
+      // const resp = await api.getConversionInfoAPI().getCashoutRate({
+      //   credit: amount
+      // });
+      // if (resp.type === "fail") {
+      //   // can't happen
+      //   // not-supported: it should not be able to call this function
+      //   // wrong-calculation: we are using just one parameter
+      //   throw TalerError.fromDetail(resp.detail.code, {}, resp.detail.hint)
+      // }
+      const credit = fiatAmount;
+      const beforeFee = Amounts.sub(credit, fee).amount;
+
+      // const debit = Amounts.parseOrThrow(resp.body.amount_debit);
+      //FIXME: remove this when endpoint works
+      const debit = Amounts.add(
+        Amounts.zeroOfCurrency(regionalCurrency),
+        beforeFee
+      ).amount;
 
-      const debit = Amounts.parseOrThrow(resp.body.amount_debit);
       return {
         debit,
         beforeFee,
         credit,
       };
     },
-    estimateByDebit: async (amount, fee, rate) => {
-      const zeroBalance = Amounts.zeroOfCurrency(fee.currency);
-      const zeroFiat = Amounts.zeroOfCurrency(fee.currency);
-      const zeroCalc = {
-        debit: zeroBalance,
-        credit: zeroFiat,
-        beforeFee: zeroBalance,
-      };
-      const resp = await api.getCashoutRate({ debit: amount });
-      if (resp.type === "fail") {
-        // can't happen
-        // not-supported: it should not be able to call this function
-        // wrong-calculation: we are using just one parameter
-        throw TalerError.fromDetail(resp.detail.code, {}, resp.detail.hint)
-      }
-      const credit = Amounts.parseOrThrow(resp.body.amount_credit);
-      const _credit = { ...credit, currency: fee.currency };
-      const debit = amount;
-      const beforeFee = Amounts.sub(_credit, fee).amount;
+    estimateByDebit: async (regionalAmount, fiatCurrency, fee, rate) => {
+      // const resp = await api.getConversionInfoAPI().getCashoutRate({ debit: amount });
+      // if (resp.type === "fail") {
+      //   // can't happen
+      //   // not-supported: it should not be able to call this function
+      //   // wrong-calculation: we are using just one parameter
+      //   throw TalerError.fromDetail(resp.detail.code, {}, resp.detail.hint)
+      // }
+      // const credit = Amounts.parseOrThrow(resp.body.amount_credit);
+      const debit = regionalAmount;
+      const _credit = Amounts.parseOrThrow(regionalAmount);
+      const beforeFee = { ..._credit, currency: fiatCurrency };
+      const credit = Amounts.sub(beforeFee, fee).amount;
       return {
         debit,
         beforeFee,
@@ -178,7 +203,7 @@ export function useCashouts(account: string) {
   }
 
   const { data, error } = useSWR<OperationOk<{ cashouts: CashoutWithId[] }> | TalerCoreBankErrorsByMethod<"getAccountCashouts">, TalerHttpError>(
-    !config.have_cashout ? false : [account, token, "getAccountCashouts"], fetcher, {
+    !config.allow_conversion ? false : [account, token, "getAccountCashouts"], fetcher, {
     refreshInterval: 0,
     refreshWhenHidden: false,
     revalidateOnFocus: false,
@@ -280,7 +305,7 @@ export function useLastMonitorInfo(time: Date, timeframe: TalerCorebankApi.Monit
       }
     }
 
-    const previous: TalerCoreBankResultByMethod<"getMonitor">  = {
+    const previous: TalerCoreBankResultByMethod<"getMonitor"> = {
       type: "ok" as const,
       body: {
         type: "with-conversions" as const,
@@ -304,7 +329,7 @@ export function useLastMonitorInfo(time: Date, timeframe: TalerCorebankApi.Monit
   }
 
   const { data, error } = useSWR<LastMonitor, TalerHttpError>(
-    config.have_cashout || true ? ["useLastMonitorInfo"] : false, fetcher, {
+    config.allow_conversion || true ? ["useLastMonitorInfo"] : false, fetcher, {
     refreshInterval: 0,
     refreshWhenHidden: false,
     revalidateOnFocus: false,