import { ApplicationGroup } from '@/ui_models/application_group';
import { getPlatformString, getWindowUrlParams } from '@/utils';
import { AppStateEvent, PanelResizedData } from '@/ui_models/app_state';
import {
  ApplicationEvent,
  Challenge,
  PermissionDialog,
  removeFromArray,
} from '@standardnotes/snjs';
import { PANEL_NAME_NOTES, PANEL_NAME_NAVIGATION } from '@/constants';
import { alertDialog } from '@/services/alertService';
import { WebAppEvent, WebApplication } from '@/ui_models/application';
import { PureComponent } from '@/components/Abstract/PureComponent';
import { Navigation } from '@/components/Navigation';
import { NotesView } from '@/components/NotesView';
import { NoteGroupView } from '@/components/NoteGroupView';
import { Footer } from '@/components/Footer';
import { SessionsModal } from '@/components/SessionsModal';
import { PreferencesViewWrapper } from '@/components/Preferences/PreferencesViewWrapper';
import { ChallengeModal } from '@/components/ChallengeModal';
import { NotesContextMenu } from '@/components/NotesContextMenu';
import { PurchaseFlowWrapper } from '@/components/PurchaseFlow/PurchaseFlowWrapper';
import { render } from 'preact';
import { PermissionsModal } from './PermissionsModal';
import { RevisionHistoryModalWrapper } from './RevisionHistoryModal/RevisionHistoryModalWrapper';
import { PremiumModalProvider } from './Premium';
import { ConfirmSignoutContainer } from './ConfirmSignoutModal';
import { TagsContextMenu } from './Tags/TagContextMenu';
import { ToastContainer } from '@standardnotes/stylekit';
import { FilePreviewModalProvider } from './Files/FilePreviewModalProvider';

type Props = {
  application: WebApplication;
  mainApplicationGroup: ApplicationGroup;
};

type State = {
  started?: boolean;
  launched?: boolean;
  needsUnlock?: boolean;
  appClass: string;
  challenges: Challenge[];
};

export class ApplicationView extends PureComponent<Props, State> {
  public readonly platformString = getPlatformString();

  constructor(props: Props) {
    super(props, props.application);
    this.state = {
      appClass: '',
      challenges: [],
    };
  }

  deinit() {
    (this.application as unknown) = undefined;
    super.deinit();
  }

  componentDidMount(): void {
    super.componentDidMount();
    this.loadApplication();
  }

  async loadApplication() {
    this.application.componentManager.setDesktopManager(
      this.application.getDesktopService()
    );
    await this.application.prepareForLaunch({
      receiveChallenge: async (challenge) => {
        const challenges = this.state.challenges.slice();
        challenges.push(challenge);
        this.setState({ challenges: challenges });
      },
    });
    await this.application.launch();
  }

  public removeChallenge = async (challenge: Challenge) => {
    const challenges = this.state.challenges.slice();
    removeFromArray(challenges, challenge);
    this.setState({ challenges: challenges });
  };

  async onAppStart() {
    super.onAppStart();
    this.setState({
      started: true,
      needsUnlock: this.application.hasPasscode(),
    });

    this.application.componentManager.presentPermissionsDialog =
      this.presentPermissionsDialog;
  }

  async onAppLaunch() {
    super.onAppLaunch();
    this.setState({
      launched: true,
      needsUnlock: false,
    });
    this.handleDemoSignInFromParams();
  }

  onUpdateAvailable() {
    this.application.notifyWebEvent(WebAppEvent.NewUpdateAvailable);
  }

  /** @override */
  async onAppEvent(eventName: ApplicationEvent) {
    super.onAppEvent(eventName);
    switch (eventName) {
      case ApplicationEvent.LocalDatabaseReadError:
        alertDialog({
          text: 'Unable to load local database. Please restart the app and try again.',
        });
        break;
      case ApplicationEvent.LocalDatabaseWriteError:
        alertDialog({
          text: 'Unable to write to local database. Please restart the app and try again.',
        });
        break;
    }
  }

  /** @override */
  async onAppStateEvent(eventName: AppStateEvent, data?: unknown) {
    if (eventName === AppStateEvent.PanelResized) {
      const { panel, collapsed } = data as PanelResizedData;
      let appClass = '';
      if (panel === PANEL_NAME_NOTES && collapsed) {
        appClass += 'collapsed-notes';
      }
      if (panel === PANEL_NAME_NAVIGATION && collapsed) {
        appClass += ' collapsed-navigation';
      }
      this.setState({ appClass });
    } else if (eventName === AppStateEvent.WindowDidFocus) {
      if (!(await this.application.isLocked())) {
        this.application.sync.sync();
      }
    }
  }

  async handleDemoSignInFromParams() {
    const token = getWindowUrlParams().get('demo-token');
    if (!token || this.application.hasAccount()) {
      return;
    }

    await this.application.sessions.populateSessionFromDemoShareToken(token);
  }

  presentPermissionsDialog = (dialog: PermissionDialog) => {
    render(
      <PermissionsModal
        application={this.application}
        callback={dialog.callback}
        component={dialog.component}
        permissionsString={dialog.permissionsString}
      />,
      document.body.appendChild(document.createElement('div'))
    );
  };

  render() {
    if (this.application['dealloced'] === true) {
      console.error('Attempting to render dealloced application');
      return <div></div>;
    }

    const renderAppContents = !this.state.needsUnlock && this.state.launched;

    return (
      <FilePreviewModalProvider application={this.application}>
        <PremiumModalProvider
          application={this.application}
          appState={this.appState}
        >
          <div className={this.platformString + ' main-ui-view sn-component'}>
            {renderAppContents && (
              <div
                id="app"
                className={this.state.appClass + ' app app-column-container'}
              >
                <Navigation application={this.application} />
                <NotesView
                  application={this.application}
                  appState={this.appState}
                />
                <NoteGroupView application={this.application} />
              </div>
            )}
            {renderAppContents && (
              <>
                <Footer
                  application={this.application}
                  applicationGroup={this.props.mainApplicationGroup}
                />
                <SessionsModal
                  application={this.application}
                  appState={this.appState}
                />
                <PreferencesViewWrapper
                  appState={this.appState}
                  application={this.application}
                />
                <RevisionHistoryModalWrapper
                  application={this.application}
                  appState={this.appState}
                />
              </>
            )}
            {this.state.challenges.map((challenge) => {
              return (
                <div className="sk-modal">
                  <ChallengeModal
                    key={challenge.id}
                    application={this.application}
                    challenge={challenge}
                    onDismiss={this.removeChallenge}
                  />
                </div>
              );
            })}
            {renderAppContents && (
              <>
                <NotesContextMenu
                  application={this.application}
                  appState={this.appState}
                />
                <TagsContextMenu appState={this.appState} />
                <PurchaseFlowWrapper
                  application={this.application}
                  appState={this.appState}
                />
                <ConfirmSignoutContainer
                  appState={this.appState}
                  application={this.application}
                />
                <ToastContainer />
              </>
            )}
          </div>
        </PremiumModalProvider>
      </FilePreviewModalProvider>
    );
  }
}