/**
 * ============LICENSE_START========================================================================
 * ONAP : ccsdk feature sdnr wt odlux
 * =================================================================================================
 * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
 * =================================================================================================
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 * ============LICENSE_END==========================================================================
 */
// app configuration and main entry point for the app

import React from 'react';
import { Redirect, Route, RouteComponentProps, Switch, withRouter } from 'react-router-dom';

import { connect, Connect, IDispatcher } from '../../../framework/src/flux/connect';
import applicationManager from '../../../framework/src/services/applicationManager';
import { IFormatedMessage, subscribe } from '../../../framework/src/services/notificationService';
import { IApplicationStoreState } from '../../../framework/src/store/applicationStore';

import { AddFaultNotificationAction } from './actions/notificationActions';
import { SetPanelAction } from './actions/panelChangeActions';
import { refreshFaultStatusAsyncAction, SetFaultStatusAction } from './actions/statusActions';
import DashboardHome from './components/dashboardHome';
import { FaultStatus } from './components/faultStatus';
import { createCurrentAlarmsActions, createCurrentAlarmsProperties, currentAlarmsReloadAction } from './handlers/currentAlarmsHandler';
import { faultAppRootHandler } from './handlers/faultAppRootHandler';
import { FaultAlarmNotificationWS } from './models/fault';
import { PanelId } from './models/panelId';
import { FaultApplication } from './views/faultApplication';

const appIcon = require('./assets/icons/faultAppIcon.svg');  // select app icon

let currentMountId: string | undefined = undefined;
let currentSeverity: string | undefined = undefined;
let refreshInterval: ReturnType<typeof window.setInterval> | null = null;

const mapProps = (state: IApplicationStoreState) => ({
  currentAlarmsProperties: createCurrentAlarmsProperties(state),
});

const mapDispatch = (dispatcher: IDispatcher) => ({
  currentAlarmsActions: createCurrentAlarmsActions(dispatcher.dispatch, true),
  setCurrentPanel: (panelId: PanelId) => dispatcher.dispatch(new SetPanelAction(panelId)),
});

const FaultApplicationRouteAdapter = connect(mapProps, mapDispatch)((props: RouteComponentProps<{ mountId?: string }> & Connect<typeof mapProps, typeof mapDispatch>) => {
  if (currentMountId !== props.match.params.mountId) {
    // route parameter has changed
    currentMountId = props.match.params.mountId || undefined;
    // Hint: This timeout is need, since it is not recommended to change the state while rendering is in progress !
    window.setTimeout(() => {
      if (currentMountId) {
        props.setCurrentPanel('CurrentAlarms');
        props.currentAlarmsActions.onFilterChanged('nodeId', currentMountId);
        if (!props.currentAlarmsProperties.showFilter) {
          props.currentAlarmsActions.onToggleFilter(false);
          props.currentAlarmsActions.onRefresh();
        } else
          props.currentAlarmsActions.onRefresh();
      }
    });
  }
  return (
    <FaultApplication />
  );
});

const FaultApplicationAlarmStatusRouteAdapter = connect(mapProps, mapDispatch)((props: RouteComponentProps<{ severity?: string }> & Connect<typeof mapProps, typeof mapDispatch>) => {
  if (currentSeverity !== props.match.params.severity) {
    currentSeverity = props.match.params.severity || undefined;
    window.setTimeout(() => {
      if (currentSeverity) {
        props.setCurrentPanel('CurrentAlarms');
        props.currentAlarmsActions.onFilterChanged('severity', currentSeverity);
        if (!props.currentAlarmsProperties.showFilter) {
          props.currentAlarmsActions.onToggleFilter(false);
          props.currentAlarmsActions.onRefresh();
        } else
          props.currentAlarmsActions.onRefresh();
      }
    });
  }
  return (
    <FaultApplication />
  );
});

const App = withRouter((props: RouteComponentProps) => (
  <Switch>
    <Route path={`${props.match.path}/alarmStatus/:severity?`} component={FaultApplicationAlarmStatusRouteAdapter} />
    <Route path={`${props.match.path}/:mountId?`} component={FaultApplicationRouteAdapter} />
    <Redirect to={`${props.match.path}`} />
  </Switch>
));

export function register() {
  const applicationApi = applicationManager.registerApplication({
    name: 'fault',
    icon: appIcon,
    rootComponent: App,
    rootActionHandler: faultAppRootHandler,
    statusBarElement: FaultStatus,
    dashbaordElement: DashboardHome,
    menuEntry: 'Fault',
  });

  let counter = 0;
  // subscribe to the websocket notifications
  subscribe<FaultAlarmNotificationWS & IFormatedMessage>('problem-notification', (fault => {
    const store = applicationApi && applicationApi.applicationStore;
    if (fault && store) {

      store.dispatch(new AddFaultNotificationAction({
        id: String(counter++),
        nodeName: fault['node-id'],
        counter: +fault.data.counter,
        objectId: fault.data['object-id-ref'],
        problem: fault.data.problem,
        severity: fault.data.severity || '',
        timeStamp: fault.data['time-stamp'],
      }));
    }
  }));

  applicationApi.applicationStoreInitialized.then(store => {
    store.dispatch(currentAlarmsReloadAction);
  });

  applicationApi.applicationStoreInitialized.then(store => {
    store.dispatch(refreshFaultStatusAsyncAction);
  });

  applicationApi.logoutEvent.addHandler(()=>{

    applicationApi.applicationStoreInitialized.then(store => {
      store.dispatch(new SetFaultStatusAction(0, 0, 0, 0, false, 0, 0, 0, 0, 0, 0, 0, 0, false));
      clearInterval(refreshInterval!);
    });
  });

  function startRefreshInterval()  {
    const refreshFaultStatus = window.setInterval(() => {
      applicationApi.applicationStoreInitialized.then(store => {
  
        store.dispatch(refreshFaultStatusAsyncAction);
      });
    }, 15000);

    return refreshFaultStatus;
  }

  applicationApi.loginEvent.addHandler(()=>{
    if (refreshInterval) {
      clearInterval(refreshInterval);
    }
    refreshInterval = startRefreshInterval() as any;
  });

  applicationApi.logoutEvent.addHandler(()=>{
    refreshInterval && window.clearInterval(refreshInterval);
    refreshInterval = null;
  });
}