import {el} from './domutils.js'
import {save_share} from '../share.js'
import {get_state} from '../index.js'

export class ShareDialog {
  constructor() {
    this.el = el('dialog', 'share_dialog', 
      this.upload_begin = el('p', '',
        el('p', '',
          'This button will upload your scratch file to the cloud for sharing with others.'),
        el('ul', '', 
          el('li', '', 
            'Please ensure that no personal data or confidential information is included.'
          ),
          el('li', '', 
            'Avoid including copyrighted materials.'
          ),
        ),
        el('span', {style: 'color: red'}, 
          'Caution: Once shared, files cannot be deleted.'
        ),
        this.upload_buttons = el('p', {style: 'text-align: center'}, 
          el('button', {
            'class': 'upload_button',
            click: () => this.upload()
          },
            "Upload"
          ),
          this.cancel_button = el('button', {
            style: 'margin-left: 1em',
            click: () => this.cancel()
          },
            "Cancel"
          )
        ),
      ),
      this.uploading = el('span', {style: 'display: none'},
        "Uploading..."
      ),
      this.upload_finish = el('p', {style: 'display: none'}, 
        el('p', '', 
          el('p', {style: `
            text-align: center; 
            margin-bottom: 1em; 
            font-size: 1.2em
          `}, 'Upload successful'),
          this.url_share = el('input', {
            type: 'text',
            readonly: true,
            style: 'min-width: 30em',
          }),
          this.copy_button = el('button', {
            click: () => this.copy(),
            style: 'margin-left: 1em',
          }, 'Copy URL')
        ),
        this.close_button = el('button', {
          style: 'display: block; margin: auto',
          click: () => this.cancel(),
        }, 'Close'),
      )
    )
  }

  async upload() {
    this.uploading.style.display = ''
    this.upload_begin.style.display = 'none'
    try {
      await save_share(get_state().files[''])
      // window location was changed inside save_share, now it points out to a
      // new share
      this.url_share.value = window.location.toString()
      this.upload_finish.style.display = ''
    } catch(e) {
      alert(e.message)
      this.upload_begin.style.display = ''
    } finally {
      this.uploading.style.display = 'none'
    }
  }

  copy() {
    this.url_share.select()
    document.execCommand('copy')
  }

  cancel() {
    this.upload_finish.style.display = 'none'
    this.upload_begin.style.display = ''
    this.el.close()
  }
}