import Spinner from './Spinner'
import DropZone from './DropZone'
import ProgressBar from './ProgressBar'
import React from 'react'
import Tempalink from './Tempalink'
import UploadActions from '../actions/UploadActions'
import UploadStore from '../stores/UploadStore'
import socket from '../socket'

export default class UploadPage extends React.Component {

  constructor() {
    this.state = UploadStore.getState()

    this._onChange = () => {
      this.setState(UploadStore.getState())
    }

    this._onDownload = (peerID) => {
      UploadActions.sendToDownloader(peerID)
    }
  }

  componentDidMount() {
    UploadStore.listen(this._onChange)
    socket.on('download', this._onDownload)
  }

  componentDidUnmount() {
    UploadStore.unlisten(this._onChange)
    socket.removeListener('download', this._onDownload)
  }

  uploadFile(file) {
    UploadActions.uploadFile(file)
  }

  render() {
    switch (this.state.status) {
      case 'ready':
        return <div className="page">

          <DropZone onDrop={this.uploadFile.bind(this)} />
          <Spinner dir="up" />

          <h1>WebDrop</h1>
          <p>The easiest way to send someone a file.</p>
          <p>Drag the file into this window to get started.</p>

        </div>

      case 'processing':
        return <div className="page">

          <Spinner dir="up" animated />

          <h1>WebDrop</h1>
          <p>Processing...</p>

        </div>

      case 'uploading':
        var keys = Object.keys(this.state.peerProgress)
        var numInProgress = 0
        var numCompleted = 0
        for (var k = 0; k < keys.length; k++) {
          if (this.state.peerProgress[keys[k]] < 1) {
            numInProgress++
          } else {
            numCompleted++
          }
        }
        keys.reverse()
        return <div className="page">

          <Spinner dir="up" animated {...this.state.file} />

          <Tempalink token={this.state.token} />
          <p>Send someone this link to download.</p>
          <p>This link will work as long as this page is open.</p>

          <div className="data">
            { keys.map((key) => {
              return <ProgressBar value={this.state.peerProgress[key]} small />
            })}
          </div>

        </div>
    }
  }

}