import React, { PropTypes } from 'react'
import CSSModules from 'browser/lib/CSSModules'
import styles from './StatusBar.styl'
import ZoomManager from 'browser/main/lib/ZoomManager'

const electron = require('electron')
const ipc = electron.ipcRenderer
const { remote } = electron
const { Menu, MenuItem, dialog } = remote

const zoomOptions = [0.8, 0.9, 1, 1.1, 1.2, 1.3]

function notify (...args) {
  return new window.Notification(...args)
}

class StatusBar extends React.Component {
  constructor (props) {
    super(props)

    this.state = {
      updateReady: false
    }
    this.updateReadyHandler = (message) => {
      this.setState({
        updateReady: true
      }, () => {
        notify('Update ready!', {
          body: 'New Boostnote is ready to be installed.'
        })
        this.updateApp()
      })
    }
    this.updateFoundHandler = (message) => {
      notify('Update found!', {
        body: 'Preparing to update...'
      })
    }
  }

  componentDidMount () {
    ipc.on('update-ready', this.updateReadyHandler)
    ipc.on('update-found', this.updateFoundHandler)
  }

  componentWillUnmount () {
    ipc.removeListener('update-ready', this.updateReadyHandler)
    ipc.removeListener('update-found', this.updateFoundHandler)
  }

  updateApp () {
    let index = dialog.showMessageBox(remote.getCurrentWindow(), {
      type: 'warning',
      message: 'Update Boostnote',
      detail: 'New Boostnote is ready to be installed.',
      buttons: ['Restart & Install', 'Not Now']
    })

    if (index === 0) {
      ipc.send('update-app-confirm')
    }
  }

  handleZoomButtonClick (e) {
    let menu = new Menu()

    zoomOptions.forEach((zoom) => {
      menu.append(new MenuItem({
        label: Math.floor(zoom * 100) + '%',
        click: () => this.handleZoomMenuItemClick(zoom)
      }))
    })

    menu.popup(remote.getCurrentWindow())
  }

  handleZoomMenuItemClick (zoomFactor) {
    let { dispatch } = this.props
    ZoomManager.setZoom(zoomFactor)
    dispatch({
      type: 'SET_ZOOM',
      zoom: zoomFactor
    })
  }

  render () {
    let { config, location } = this.props

    return (
      <div className='StatusBar'
        styleName='root'
      >
        <div styleName='pathname'>{location.pathname + location.search}</div>
        {this.state.updateReady
          ? <button onClick={this.updateApp} styleName='update'>
            <i styleName='update-icon' className='fa fa-cloud-download'/> Ready to Update!
          </button>
          : null
        }
        <button styleName='zoom'
          onClick={(e) => this.handleZoomButtonClick(e)}
        >
          <i className='fa fa-search-plus'/>&nbsp;
          {Math.floor(config.zoom * 100)}%
        </button>
      </div>
    )
  }
}

StatusBar.propTypes = {
  config: PropTypes.shape({
    zoom: PropTypes.number
  })
}

export default CSSModules(StatusBar, styles)