/*
 This file is part of GNU Taler
 (C) 2020 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/>
 */

/**
 * Main entry point for extension pages.
 *
 * @author Florian Dold <dold@taler.net>
 */

import { setupI18n } from "@gnu-taler/taler-util";
import { createHashHistory } from "history";
import { Fragment, h, render, VNode } from "preact";
import Router, { route, Route } from "preact-router";
import { useEffect } from "preact/hooks";
import { LogoHeader } from "./components/LogoHeader";
import { DevContextProvider } from "./context/devContext";
import { PayPage } from "./cta/Pay";
import { RefundPage } from "./cta/Refund";
import { TipPage } from "./cta/Tip";
import { WithdrawPage } from "./cta/Withdraw";
import { strings } from "./i18n/strings";
import { Pages, WalletNavBar } from "./NavigationBar";
import { BalancePage } from "./wallet/BalancePage";
import { HistoryPage } from "./wallet/History";
import { SettingsPage } from "./wallet/Settings";
import { TransactionPage } from "./wallet/Transaction";
import { WelcomePage } from "./wallet/Welcome";
import { BackupPage } from "./wallet/BackupPage";
import { DeveloperPage } from "./popup/DeveloperPage";
import { ManualWithdrawPage } from "./wallet/ManualWithdrawPage";
import { WalletBox } from "./components/styled";
import { ProviderDetailPage } from "./wallet/ProviderDetailPage";
import { ProviderAddPage } from "./wallet/ProviderAddPage";
import { ExchangeAddPage } from "./wallet/ExchangeAddPage";

function main(): void {
  try {
    const container = document.getElementById("container");
    if (!container) {
      throw Error("container not found, can't mount page contents");
    }
    render(<Application />, container);
  } catch (e) {
    console.error("got error", e);
    if (e instanceof Error) {
      document.body.innerText = `Fatal error: "${e.message}".  Please report this bug at https://bugs.gnunet.org/.`;
    }
  }
}

setupI18n("en-US", strings);

if (document.readyState === "loading") {
  document.addEventListener("DOMContentLoaded", main);
} else {
  main();
}

function withLogoAndNavBar(Component: any) {
  return function withLogoAndNavBarComponent(props: any): VNode {
    return (
      <Fragment>
        <LogoHeader />
        <WalletNavBar />
        <WalletBox>
          <Component {...props} />
        </WalletBox>
      </Fragment>
    );
  };
}

function Application(): VNode {
  return (
    <div>
      <DevContextProvider>
        <Router history={createHashHistory()}>
          <Route
            path={Pages.welcome}
            component={withLogoAndNavBar(WelcomePage)}
          />

          <Route
            path={Pages.history}
            component={withLogoAndNavBar(HistoryPage)}
          />
          <Route
            path={Pages.transaction}
            component={withLogoAndNavBar(TransactionPage)}
          />
          <Route
            path={Pages.balance}
            component={withLogoAndNavBar(BalancePage)}
            goToWalletManualWithdraw={() => route(Pages.manual_withdraw)}
          />
          <Route
            path={Pages.settings}
            component={withLogoAndNavBar(SettingsPage)}
          />
          <Route
            path={Pages.backup}
            component={withLogoAndNavBar(BackupPage)}
            onAddProvider={() => {
              route(Pages.provider_add);
            }}
          />
          <Route
            path={Pages.provider_detail}
            component={withLogoAndNavBar(ProviderDetailPage)}
            onBack={() => {
              route(Pages.backup);
            }}
          />
          <Route
            path={Pages.provider_add}
            component={withLogoAndNavBar(ProviderAddPage)}
            onBack={() => {
              route(Pages.backup);
            }}
          />

          <Route
            path={Pages.exchange_add}
            component={withLogoAndNavBar(ExchangeAddPage)}
            onBack={() => {
              route(Pages.balance);
            }}
          />

          <Route
            path={Pages.manual_withdraw}
            component={withLogoAndNavBar(ManualWithdrawPage)}
          />

          <Route
            path={Pages.reset_required}
            component={() => <div>no yet implemented</div>}
          />
          <Route
            path={Pages.payback}
            component={() => <div>no yet implemented</div>}
          />
          <Route
            path={Pages.return_coins}
            component={() => <div>no yet implemented</div>}
          />

          <Route
            path={Pages.dev}
            component={withLogoAndNavBar(DeveloperPage)}
          />

          {/** call to action */}
          <Route path={Pages.pay} component={PayPage} />
          <Route path={Pages.refund} component={RefundPage} />
          <Route path={Pages.tips} component={TipPage} />
          <Route path={Pages.withdraw} component={WithdrawPage} />

          <Route default component={Redirect} to={Pages.history} />
        </Router>
      </DevContextProvider>
    </div>
  );
}

function Redirect({ to }: { to: string }): null {
  useEffect(() => {
    route(to, true);
  });
  return null;
}