/* global $ */

import React from 'react'
import ReactDOM from 'react-dom'

import Active from '../Active'
import Visualize from '../Visualize'
import GlobalUI from '../GlobalUI'

import ReactTopicCard from '../../components/TopicCard'

const TopicCard = {
  openTopicCard: null, // stores the topic that's currently open
  metacodeSets: [],
  init: function(serverData) {
    const self = TopicCard
    self.metacodeSets = serverData.metacodeSets
  },
  populateShowCard: function(topic) {
    const self = TopicCard
    ReactDOM.render(
      React.createElement(ReactTopicCard, {
        topic: topic,
        ActiveMapper: Active.Mapper,
        updateTopic: obj => {
          topic.save(obj, { success: topic => self.populateShowCard(topic) })
        },
        onFollow: () => {
          const isFollowing = topic.isFollowedBy(Active.Mapper)
          $.post({
            url: `/topics/${topic.id}/${isFollowing ? 'un' : ''}follow`
          })
          if (isFollowing) {
            GlobalUI.notifyUser('You are no longer following this topic')
            Active.Mapper.unfollowTopic(topic.id)
          } else {
            GlobalUI.notifyUser('You are now following this topic')
            Active.Mapper.followTopic(topic.id)
          }
          self.populateShowCard(topic)
        },
        metacodeSets: self.metacodeSets,
        redrawCanvas: () => {
          Visualize.mGraph.plot()
        }
      }),
      document.getElementById('showcard')
    )

    // initialize draggability
    $('.showcard').draggable({
      handle: '.metacodeImage',
      stop: function() {
        $(this).height('auto')
      }
    })
  },
  showCard: function(node, opts) {
    var self = TopicCard
    if (!opts) opts = {}
    var topic = node.getData('topic')
    self.openTopicCard = topic
    // populate the card that's about to show with the right topics data
    self.populateShowCard(topic)
    return $('.showcard').fadeIn('fast', () => opts.complete && opts.complete())
  },
  hideCard: function() {
    var self = TopicCard
    $('.showcard').fadeOut('fast')
    self.openTopicCard = null
  }
}

export default TopicCard