import { RoundIconButton } from '@/components/RoundIconButton';
import { TitleBar, Title } from '@/components/TitleBar';
import { FunctionComponent } from 'preact';
import {
  AccountPreferences,
  HelpAndFeedback,
  Listed,
  General,
  Security,
} from './panes';
import { observer } from 'mobx-react-lite';

import { PreferencesMenu } from './PreferencesMenu';
import { PreferencesMenuView } from './PreferencesMenuView';
import { WebApplication } from '@/ui_models/application';
import { MfaProps } from './panes/two-factor-auth/MfaProps';
import { AppState } from '@/ui_models/app_state';
import { useEffect, useMemo } from 'preact/hooks';
import { ExtensionPane } from './panes/ExtensionPane';
import { Backups } from '@/preferences/panes/Backups';

interface PreferencesProps extends MfaProps {
  application: WebApplication;
  appState: AppState;
  closePreferences: () => void;
}

const PaneSelector: FunctionComponent<
  PreferencesProps & { menu: PreferencesMenu }
> = observer(({ menu, appState, application, mfaProvider, userProvider }) => {
  switch (menu.selectedPaneId) {
    case 'general':
      return (
        <General
          appState={appState}
          application={application}
          extensionsLatestVersions={menu.extensionsLatestVersions}
        />
      );
    case 'account':
      return (
        <AccountPreferences application={application} appState={appState} />
      );
    case 'appearance':
      return null;
    case 'security':
      return (
        <Security
          mfaProvider={mfaProvider}
          userProvider={userProvider}
          appState={appState}
          application={application}
        />
      );
    case 'backups':
      return <Backups application={application} appState={appState} />;
    case 'listed':
      return <Listed application={application} />;
    case 'shortcuts':
      return null;
    case 'accessibility':
      return null;
    case 'get-free-month':
      return null;
    case 'help-feedback':
      return <HelpAndFeedback />;
    default:
      if (menu.selectedExtension != undefined) {
        return (
          <ExtensionPane
            application={application}
            appState={appState}
            extension={menu.selectedExtension}
            preferencesMenu={menu}
          />
        );
      } else {
        return (
          <General
            appState={appState}
            application={application}
            extensionsLatestVersions={menu.extensionsLatestVersions}
          />
        );
      }
  }
});

const PreferencesCanvas: FunctionComponent<
  PreferencesProps & { menu: PreferencesMenu }
> = observer((props) => (
  <div className="flex flex-row flex-grow min-h-0 justify-between">
    <PreferencesMenuView menu={props.menu} />
    <PaneSelector {...props} />
  </div>
));

export const PreferencesView: FunctionComponent<PreferencesProps> = observer(
  (props) => {
    const menu = useMemo(
      () =>
        new PreferencesMenu(
          props.application,
          props.appState.enableUnfinishedFeatures
        ),
      [props.appState.enableUnfinishedFeatures, props.application]
    );

    useEffect(() => {
      menu.selectPane(props.appState.preferences.currentPane);
      const removeEscKeyObserver = props.application.io.addKeyObserver({
        key: 'Escape',
        onKeyDown: (event) => {
          event.preventDefault();
          props.closePreferences();
        },
      });
      return () => {
        removeEscKeyObserver();
      };
    }, [props, menu]);

    return (
      <div className="h-full w-full absolute top-left-0 flex flex-col bg-contrast z-index-preferences">
        <TitleBar className="items-center justify-between">
          {/* div is added so flex justify-between can center the title */}
          <div className="h-8 w-8" />
          <Title className="text-lg">Your preferences for Standard Notes</Title>
          <RoundIconButton
            onClick={() => {
              props.closePreferences();
            }}
            type="normal"
            icon="close"
          />
        </TitleBar>
        <PreferencesCanvas {...props} menu={menu} />
      </div>
    );
  }
);