1 files changed, 122 insertions, 0 deletions
diff --git a/packages/bank-ui/src/pages/AccountPage/state.ts b/packages/bank-ui/src/pages/AccountPage/state.ts
new file mode 100644
index 000000000..f8b91a2ce
--- /dev/null
+++ b/packages/bank-ui/src/pages/AccountPage/state.ts
@@ -0,0 +1,122 @@
+/*
+ This file is part of GNU Taler
+ (C) 2022-2024 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+import {
+  Amounts,
+  HttpStatusCode,
+  TalerError,
+  assertUnreachable,
+  parsePaytoUri,
+} from "@gnu-taler/taler-util";
+import { useAccountDetails } from "../../hooks/account.js";
+import { Props, State } from "./index.js";
+
+export function useComponentState({
+  account,
+  tab,
+  routeChargeWallet,
+  routeCreateWireTransfer,
+  routePublicAccounts,
+  routeSolveSecondFactor,
+  routeOperationDetails,
+  routeWireTransfer,
+  routeCashout,
+  onOperationCreated,
+  onClose,
+  routeClose,
+  onAuthorizationRequired,
+}: Props): State {
+  const result = useAccountDetails(account);
+
+  if (!result) {
+    return {
+      status: "loading",
+      error: undefined,
+    };
+  }
+
+  if (result instanceof TalerError) {
+    return {
+      status: "loading-error",
+      error: result,
+    };
+  }
+
+  if (result.type === "fail") {
+    switch (result.case) {
+      case HttpStatusCode.Unauthorized:
+        return {
+          status: "login",
+          reason: "forbidden",
+        };
+      case HttpStatusCode.NotFound:
+        return {
+          status: "login",
+          reason: "not-found",
+        };
+      default: {
+        assertUnreachable(result);
+      }
+    }
+  }
+
+  const { body: data } = result;
+
+  const balance = Amounts.parseOrThrow(data.balance.amount);
+
+  const debitThreshold = Amounts.parseOrThrow(data.debit_threshold);
+  const payto = parsePaytoUri(data.payto_uri);
+
+  if (
+    !payto ||
+    !payto.isKnown ||
+    (payto.targetType !== "iban" && payto.targetType !== "x-taler-bank")
+  ) {
+    return {
+      status: "invalid-iban",
+      error: data,
+    };
+  }
+
+  const balanceIsDebit = data.balance.credit_debit_indicator == "debit";
+  const limit = balanceIsDebit
+    ? Amounts.sub(debitThreshold, balance).amount
+    : Amounts.add(balance, debitThreshold).amount;
+
+  const positiveBalance = balanceIsDebit
+    ? Amounts.zeroOfAmount(balance)
+    : balance;
+
+  return {
+    status: "ready",
+    onOperationCreated,
+    error: undefined,
+    tab,
+    routeCashout,
+    routeOperationDetails,
+    routeCreateWireTransfer,
+    routePublicAccounts,
+    routeSolveSecondFactor,
+    onAuthorizationRequired,
+    onClose,
+    routeClose,
+    routeChargeWallet,
+    routeWireTransfer,
+    account,
+    limit,
+    balance: positiveBalance,
+  };
+}