import React, { useState, useEffect } from 'react';
import { PropTypes } from 'prop-types';
import classNames from 'classnames';
import { bindActionCreators } from 'redux';
import { connect } from 'react-redux';
import { withStyles } from '@material-ui/core/styles';
import { Header, Sidebar, BreadCrumb } from 'ba-components';
import { toggleAction, openAction, playTransitionAction } from 'ba-actions/UiActions';
import { Fade } from '@material-ui/core';
import styles from './appStyles-jss';

function Dashboard(props) {
  const {
    classes,
    children,
    history,
    toggleDrawer,
    sidebarOpen,
    initialOpen,
    loadTransition,
    pageLoaded
  } = props;
  const [transform, setTransform] = useState(0);

  const darker = true;

  const handleScroll = () => {
    const doc = document.documentElement;
    const scroll = (window.pageYOffset || doc.scrollTop) - (doc.clientTop || 0);
    setTransform(scroll);
  };

  useEffect(() => {
    // Scroll content to top
    window.addEventListener('scroll', handleScroll);

    // Set expanded sidebar menu
    const currentPath = history.location.pathname;
    initialOpen(currentPath);

    // Play page transition
    loadTransition(true);

    // Execute all arguments when page changes
    const unlisten = history.listen(() => {
      window.scrollTo(0, 0);
      setTimeout(() => {
        loadTransition(true);
      }, 500);
    });

    return () => {
      unlisten();
    };
  }, []);

  return (
    <div className={classes.appFrameInner}>
      <Header toggleDrawerOpen={toggleDrawer} turnDarker={transform > 30 && darker} margin={sidebarOpen} />
      <Sidebar
        open={sidebarOpen}
        toggleDrawerOpen={toggleDrawer}
        loadTransition={loadTransition}
        turnDarker={transform > 30 && darker}
      />
      <main className={classNames(classes.content, !sidebarOpen && classes.contentPadding)} id="mainContent">
        <div className={classes.bgbar} />
        <section className={classes.mainWrap}>
          <BreadCrumb separator=" › " theme="light" location={history.location} />
          <Fade
            in={pageLoaded}
            mountOnEnter
            unmountOnExit
            {...(pageLoaded ? { timeout: 700 } : {})}
          >
            <div className={!pageLoaded ? classes.hideApp : ''}>
              {children}
            </div>
          </Fade>
        </section>
      </main>
    </div>
  );
}

Dashboard.propTypes = {
  classes: PropTypes.object.isRequired,
  history: PropTypes.object.isRequired,
  children: PropTypes.node.isRequired,
  initialOpen: PropTypes.func.isRequired,
  toggleDrawer: PropTypes.func.isRequired,
  loadTransition: PropTypes.func.isRequired,
  sidebarOpen: PropTypes.bool.isRequired,
  pageLoaded: PropTypes.bool.isRequired
};

const reducer = 'ui';
const mapStateToProps = state => ({
  sidebarOpen: state.getIn([reducer, 'sidebarOpen']),
  pageLoaded: state.getIn([reducer, 'pageLoaded'])
});

const mapDispatchToProps = dispatch => ({
  toggleDrawer: () => dispatch(toggleAction),
  initialOpen: bindActionCreators(openAction, dispatch),
  loadTransition: bindActionCreators(playTransitionAction, dispatch),
});

const DashboardMaped = connect(
  mapStateToProps,
  mapDispatchToProps
)(Dashboard);

export default (withStyles(styles)(DashboardMaped));