// - Import react components
import React, { Component } from 'react'
import { NavLink } from 'react-router-dom'
import { connect } from 'react-redux'
import SvgDehaze from 'material-ui/svg-icons/image/dehaze'
import { green700, grey400, blue500 } from 'material-ui/styles/colors'
import { Toolbar, ToolbarGroup, ToolbarSeparator, ToolbarTitle } from 'material-ui/Toolbar'
import IconButton from 'material-ui/IconButton'
import RaisedButton from 'material-ui/RaisedButton'
import Popover, { PopoverAnimationVertical } from 'material-ui/Popover'
import Menu from 'material-ui/Menu'
import MenuItem from 'material-ui/MenuItem'
import Paper from 'material-ui/Paper'
import NotificationsIcon from 'material-ui/svg-icons/social/notifications'
import EventListener, { withOptions } from 'react-event-listener'


// - Import components
import UserAvatar from 'UserAvatar'
import Notify from 'Notify'


// - Import actions
import * as globalActions from 'globalActions'
import * as authorizeActions from 'authorizeActions'

// - Create HomeHeader component class
export class HomeHeader extends Component {

  /**
   * Component constructor
   * @param  {object} props is an object properties of component
   */
  constructor(props) {
    super(props)

    // Default state
    this.state = {
      /**
       * User avatar popover is open if true
       */
      openAvatarMenu: false,
      /**
       * Show header title or not (true/false)
       */
      showTitle: true,
      /**
       * If true notification menu will be open
       */
      openNotifyMenu: false
    }

    // Binding functions to `this`
    this.onToggleSidebar = this.onToggleSidebar.bind(this)
    this.handleCloseNotify = this.handleCloseNotify.bind(this)

  }



  /**
   * Handle close notification menu 
   * 
   * 
   * @memberof HomeHeader
   */
  handleCloseNotify = () => {
    this.setState({
      openNotifyMenu: false
    })
  }


  // On click toggle sidebar
  onToggleSidebar = () => {
    if (this.props.sidebarStatus) {
      this.props.sidebar(false)

    } else {
      this.props.sidebar(true)

    }
  }

  /**
   * Handle notification touch 
   * 
   * 
   * @memberof HomeHeader
   */
  handleNotifyTouchTap = (event) => {
    // This prevents ghost click.
    event.preventDefault();

    this.setState({
      openNotifyMenu: true,
      anchorEl: event.currentTarget,
    });
  }

  /**
   * Handle touch on user avatar for popover
   * 
   * 
   * @memberof HomeHeader
   */
  handleAvatarTouchTap = (event) => {
    // This prevents ghost click.
    event.preventDefault();

    this.setState({
      openAvatarMenu: true,
      anchorEl: event.currentTarget,
    });
  }

  /**
   * Handle logout user
   * 
   * 
   * @memberof HomeHeader
   */
  handleLogout = () => {
    this.props.logout()
  }

  /**
   * Handle close popover
   * 
   * 
   * @memberof HomeHeader
   */
  handleRequestClose = () => {
    this.setState({
      openAvatarMenu: false,
    });
  };


  /**
   * Handle resize event for window to manipulate home header status
   * @param  {event} evt is the event is passed by winodw resize event
   */
  handleResize = (evt) => {

    // Set initial state
    var width = window.innerWidth

    if (width >= 600 && !this.state.showTitle) {
      this.setState({
        showTitle: true
      })

    }
    else if (width < 600 && this.state.showTitle) {

      this.setState({
        showTitle: false
      })
    }
  }

  componentDidMount = () => {
    this.handleResize()
  }


  // Render app DOM component
  render() {

    /**
     * Styles
     */
    var styles = {
      toolbarStyle: {
        backgroundColor: "",
        transition: "all 450ms cubic-bezier(0.23, 1, 0.32, 1) 0ms",
        boxSizing: "border-box",
        fontFamily: "Roboto, sans-serif",
        position: "fixed",
        zIndex: "1101",
        width: "100%",
        top: "0px",
        boxShadow: '0 1px 8px rgba(0,0,0,.3)'
      },
      avatarStyle: {
        margin: 5,
        cursor: 'pointer'
      }


    }

    return (

      <Toolbar style={styles.toolbarStyle} className="g__greenBox">
        <EventListener
          target="window"
          onResize={this.handleResize}
          onKeyUp={this.handleKeyUp}
        />
        {/* Left side */}
        <ToolbarGroup firstChild={true}>

          <IconButton iconStyle={{ color: "#fff" }} onClick={this.onToggleSidebar} >
            <SvgDehaze style={{ color: "#fff", marginLeft: "15px", cursor: "pointer" }} />
          </IconButton>
          {/* Header title */}
          <ToolbarTitle style={{ color: "#fff", marginLeft: "15px" }} text="Green" />
          {this.state.showTitle ? <div className="homeHeader__page">{this.props.title}</div> : ''}
        </ToolbarGroup>
        <ToolbarGroup>

        </ToolbarGroup>

        {/* Notification */}
        <ToolbarGroup lastChild={true}>
          <div className="homeHeader__right">
            {this.props.notifyCount > 0 ? (<IconButton tooltip="Notifications" onTouchTap={this.handleNotifyTouchTap}>
              <div className="homeHeader__notify">
                <div className='title'>{this.props.notifyCount}</div>
              </div>
            </IconButton>)

              : (<IconButton tooltip="Notifications" onTouchTap={this.handleNotifyTouchTap}>
                <NotificationsIcon color='rgba(255, 255, 255, 0.87)' />
              </IconButton>)}
              <Notify open={this.state.openNotifyMenu} anchorEl={this.state.anchorEl} onRequestClose={this.handleCloseNotify}/>


            {/* User avatar*/}
            <UserAvatar
              onTouchTap={this.handleAvatarTouchTap}
              fullName={this.props.fullName}
              fileName={this.props.avatar}
              size={32}
              style={styles.avatarStyle}
            />
            <Popover
              open={this.state.openAvatarMenu}
              anchorEl={this.state.anchorEl}
              anchorOrigin={{ horizontal: 'left', vertical: 'bottom' }}
              targetOrigin={{ horizontal: 'left', vertical: 'top' }}
              onRequestClose={this.handleRequestClose}
            >
              <Menu>
                <MenuItem style={{ backgroundColor: 'white', color: blue500, fontSize: '14px' }} primaryText="MY ACCOUNT" />
                <MenuItem primaryText="LOGOUT" style={{ fontSize: '14px' }} onClick={this.handleLogout.bind(this)} />

              </Menu>
            </Popover>
          </div>
        </ToolbarGroup>

      </Toolbar>



    )
  }
}

// - Map dispatch to props
const mapDispatchToProps = (dispatch, ownProps) => {
  return {
    logout: () => dispatch(authorizeActions.dbLogout())
  }
}

// - Map state to props
const mapStateToProps = (state, ownProps) => {
  
  let notifyCount = state.notify.userNotifies 
  ? Object
  .keys(state.notify.userNotifies)
  .filter((key)=> !state.notify.userNotifies[key].isSeen).length
  : 0
  return {
    avatar: state.user.info && state.user.info[state.authorize.uid] ? state.user.info[state.authorize.uid].avatar : '',
    fullName: state.user.info && state.user.info[state.authorize.uid] ? state.user.info[state.authorize.uid].fullName : '',
    title: state.global.headerTitle,
    notifyCount
  }
}

// - Connect component to redux store
export default connect(mapStateToProps, mapDispatchToProps)(HomeHeader)