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+/*
+ 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 { Logger } from "@gnu-taler/taler-util";
+import {
+ HttpResponsePaginated,
+ useTranslationContext,
+} from "@gnu-taler/web-util/lib/index.browser";
+import { Fragment, h, VNode } from "preact";
+import { Loading } from "../components/Loading.js";
+import { useBackendContext } from "../context/backend.js";
+import { PageStateType, usePageContext } from "../context/pageState.js";
+import { AccountPage } from "./AccountPage.js";
+import { AdminPage } from "./AdminPage.js";
+import { LoginForm } from "./LoginForm.js";
+import { WithdrawalQRCode } from "./WithdrawalQRCode.js";
+
+const logger = new Logger("AccountPage");
+
+/**
+ * show content based on state:
+ * - LoginForm if the user is not logged in
+ * - qr code if withdrawal in progress
+ * - else account information
+ * Use the handler to catch error cases
+ *
+ * @param param0
+ * @returns
+ */
+export function HomePage({ onRegister }: { onRegister: () => void }): VNode {
+ const backend = useBackendContext();
+ const { pageState, pageStateSetter } = usePageContext();
+ const { i18n } = useTranslationContext();
+
+ function saveError(error: PageStateType["error"]): void {
+ pageStateSetter((prev) => ({ ...prev, error }));
+ }
+
+ function saveErrorAndLogout(error: PageStateType["error"]): void {
+ saveError(error);
+ backend.logOut();
+ }
+
+ function clearCurrentWithdrawal(): void {
+ pageStateSetter((prevState: PageStateType) => {
+ return {
+ ...prevState,
+ withdrawalId: undefined,
+ talerWithdrawUri: undefined,
+ withdrawalInProgress: false,
+ };
+ });
+ }
+
+ if (backend.state.status === "loggedOut") {
+ return <LoginForm onRegister={onRegister} />;
+ }
+
+ const { withdrawalId, talerWithdrawUri } = pageState;
+
+ if (talerWithdrawUri && withdrawalId) {
+ return (
+ <WithdrawalQRCode
+ account={backend.state.username}
+ withdrawalId={withdrawalId}
+ talerWithdrawUri={talerWithdrawUri}
+ onAbort={clearCurrentWithdrawal}
+ onLoadNotOk={handleNotOkResult(
+ backend.state.username,
+ saveError,
+ i18n,
+ onRegister,
+ )}
+ />
+ );
+ }
+
+ if (backend.state.isUserAdministrator) {
+ return (
+ <AdminPage
+ onLoadNotOk={handleNotOkResult(
+ backend.state.username,
+ saveErrorAndLogout,
+ i18n,
+ onRegister,
+ )}
+ />
+ );
+ }
+
+ return (
+ <AccountPage
+ account={backend.state.username}
+ onLoadNotOk={handleNotOkResult(
+ backend.state.username,
+ saveErrorAndLogout,
+ i18n,
+ onRegister,
+ )}
+ />
+ );
+}
+
+function handleNotOkResult(
+ account: string,
+ onErrorHandler: (state: PageStateType["error"]) => void,
+ i18n: ReturnType<typeof useTranslationContext>["i18n"],
+ onRegister: () => void,
+): <T, E>(result: HttpResponsePaginated<T, E>) => VNode {
+ return function handleNotOkResult2<T, E>(
+ result: HttpResponsePaginated<T, E>,
+ ): VNode {
+ if (result.clientError && result.isUnauthorized) {
+ onErrorHandler({
+ title: i18n.str`Wrong credentials for "${account}"`,
+ });
+ return <LoginForm onRegister={onRegister} />;
+ }
+ if (result.clientError && result.isNotfound) {
+ onErrorHandler({
+ title: i18n.str`Username or account label "${account}" not found`,
+ });
+ return <LoginForm onRegister={onRegister} />;
+ }
+ if (result.loading) return <Loading />;
+ if (!result.ok) {
+ onErrorHandler({
+ title: i18n.str`The backend reported a problem: HTTP status #${result.status}`,
+ description: `Diagnostic from ${result.info?.url.href} is "${result.message}"`,
+ debug: JSON.stringify(result.error),
+ });
+ return <LoginForm onRegister={onRegister} />;
+ }
+ return <div />;
+ };
+}