import { h, Component } from 'preact'
import { bindActionCreators } from 'redux'
import { connect } from 'react-redux'

import { actions } from '../../api'
import * as taskActions from '../../task/task.actions'
import * as systemActions from '../../system/system.actions'
  // folderActions.index({ module: 'samplernn' })
  // folderActions.show(12)
  // folderActions.create({ module: 'samplernn', name: 'foo' })
  // folderActions.update(12, { module: 'pix2pix' })
  // folderActions.destroy(12, { confirm: true })
  // folderActions.upload(12, form_data)

import Group from '../../common/group.component'
import Slider from '../../common/slider.component'
import Select from '../../common/select.component'
import Button from '../../common/button.component'
import FileList from '../../common/fileList.component'
import FileUpload from '../../common/fileUpload.component'
import TextInput from '../../common/textInput.component'

class SampleRNNDatasets extends Component {
  constructor(props){
    super()
    // fetch file list
    this.handleName = this.handleName.bind(this)
    this.handleUpload = this.handleUpload.bind(this)
    this.handleURL = this.handleURL.bind(this)
    this.fetchURL = this.fetchURL.bind(this)
    this.fileOptions = this.fileOptions.bind(this)
    props.actions.folder.index({ module: 'samplernn' })
    props.actions.file.index({ module: 'samplernn' })
  }
  handleName(name) {
    const folder = this.props.samplernn.folder
    if (! folder.id) {
      this.props.actions.folder.create({
        //     username... should get added inside the API
        module: 'samplernn',
        activity: 'dataset',
        datatype: 'audio',
        name
      })
    } else {
      this.props.actions.folder.update({
        id: folder.id,
        module: 'samplernn',
        activity: 'dataset',
        datatype: 'audio',
        name
      })
    }
  }
  handleUpload(file) {
    const folder = this.props.samplernn.folder
    this.props.actions.file.create({
      folder_id: folder.id,
      module: 'samplernn',
      activity: 'url',
      epoch: 0,
      processed: false,
      generated: false,
      url
    })
  }
  handleURL(url) {
    // name url
    // mime datatype
    // duration analysis
    // size activity
    // opt created_at updated_at
    const folder = this.props.samplernn.folder
    this.props.actions.file.create({
      folder_id: folder.id,
      module: 'samplernn',
      activity: 'url',
      epoch: 0,
      processed: false,
      generated: false,
      url
    })
  }
  fetchURL(url) {
    console.log(url)
    this.props.actions.task.start_task({
      activity: 'fetch',
      module: 'samplernn',
      dataset: 'test',
      epochs: 1,
      opt: { url }
    }, { preempt: true, watch: true })
  }
  fileOptions(file){
    console.log(file)
    if (file.activity === 'url' && !file.dataset) {
      if (this.props.runner.cpu.status !== 'IDLE') {
        return (
          <div className='gray'>
            fetching...
          </div>
        )
      } else {
        return (
          <div className='link' onClick={() => this.fetchURL(file.url)}>
            fetch
          </div>
        )
      }
    }
    return (
      <div>
        <div className='link' onClick={() => this.train(file)}>train</div>
        {file.epoch == 0 && <div className='epochs'>{file.epochs} ep.</div>}
      </div>
    )
  }
  render(){
    const { samplernn } = this.props
    return (
      <div className='app'>
        <div className='heading'>
          <h3>SampleRNN</h3>
        </div>
        <div className='params row'>
          <div className='column'>
            <Group title='Dataset'>
              <TextInput
                title='Dataset name'
                value={samplernn.folder.name}
                onSave={this.handleName}
              />
              {samplernn.folder.id &&
                <FileUpload
                  title='Upload a file'
                  onChange={this.handleUpload}
                />
              }
              {samplernn.folder.id &&
                <TextInput
                  title='Fetch a URL'
                  placeholder='http://'
                  onSave={this.handleURL}
                />
              }
            </Group>
          </div>
        </div>
        <div className='params col'>
          {samplernn.files.length ? 
            <h3>Files</h3> :
            <h4>No files</h4>}
          <FileList
            files={samplernn.files}
            options={this.fileOptions}
          />
        </div>
      </div>
    )
  }
}

const mapStateToProps = state => ({
  samplernn: state.module.samplernn,
  runner: state.system.runner,
  task: state.task,
})

const mapDispatchToProps = (dispatch, ownProps) => ({
  actions: {
    folder: bindActionCreators(actions.folder, dispatch),
    file: bindActionCreators(actions.file, dispatch),
    task: bindActionCreators(taskActions, dispatch),
    system: bindActionCreators(systemActions, dispatch),
  }
})

export default connect(mapStateToProps, mapDispatchToProps)(SampleRNNDatasets)