1 files changed, 87 insertions, 0 deletions
diff --git a/packages/demobank-ui/src/pages/AccountPage/state.ts b/packages/demobank-ui/src/pages/AccountPage/state.ts
new file mode 100644
index 000000000..bc59c9374
--- /dev/null
+++ b/packages/demobank-ui/src/pages/AccountPage/state.ts
@@ -0,0 +1,87 @@
+/*
+ This file is part of GNU Taler
+ (C) 2022 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, parsePaytoUri } from "@gnu-taler/taler-util";
+import { ErrorType, useTranslationContext } from "@gnu-taler/web-util/browser";
+import { useBackendContext } from "../../context/backend.js";
+import { useAccountDetails } from "../../hooks/access.js";
+import { notifyError } from "../../hooks/notification.js";
+import { Props, State } from "./index.js";
+
+export function useComponentState({ account, onLoadNotOk }: Props): State {
+  const result = useAccountDetails(account);
+  const backend = useBackendContext();
+  const { i18n } = useTranslationContext();
+
+  if (result.loading) {
+    return {
+      status: "loading",
+      error: undefined,
+    };
+  }
+
+  if (!result.ok) {
+    if (result.loading || result.type === ErrorType.TIMEOUT) {
+      return {
+        status: "loading-error",
+        error: result,
+      };
+    }
+    //logout if there is any error, not if loading
+    backend.logOut();
+    if (result.status === HttpStatusCode.NotFound) {
+      notifyError({
+        title: i18n.str`Username or account label "${account}" not found`,
+      });
+      return {
+        status: "error-user-not-found",
+        error: result,
+      };
+    }
+    return {
+      status: "loading-error",
+      error: result,
+    };
+  }
+
+  const { data } = result;
+  const balance = Amounts.parseOrThrow(data.balance.amount);
+  const debitThreshold = Amounts.parseOrThrow(data.debitThreshold);
+  const payto = parsePaytoUri(data.paytoUri);
+
+  if (!payto || !payto.isKnown || payto.targetType !== "iban") {
+    return {
+      status: "invalid-iban",
+      error: result
+    };
+  }
+
+  const balanceIsDebit = data.balance.credit_debit_indicator == "debit";
+  const limit = balanceIsDebit
+    ? Amounts.sub(debitThreshold, balance).amount
+    : Amounts.add(balance, debitThreshold).amount;
+
+
+  return {
+    status: "ready",
+    error: undefined,
+    account,
+    balance,
+    balanceIsDebit,
+    limit,
+    payto
+  };
+}