import React, { PropTypes, Component } from 'react'
import Draggable from 'react-draggable'

import Title from './Title'
import Links from './Links'
import Desc from './Desc'
import Attachments from './Attachments'
import Follow from './Follow'

class ReactTopicCard extends Component {
  constructor(props) {
    super(props)

    this.state = {
      showInMaps: false,
      showMoreMaps: false,
      hoveringMapCount: false,
      hoveringSynapseCount: false
    }
  }

  toggleShowMoreMaps = e => {
    e.stopPropagation()
    e.preventDefault()
    this.setState({ showMoreMaps: !this.state.showMoreMaps })
  }

  updateState = (key, value) => () => {
    this.setState({ [key]: value })
  }

  inMaps = (topic) => {
    const inmapsArray = topic.get('inmaps') || []
    const inmapsLinks = topic.get('inmapsLinks') || []

    let firstFiveLinks = []
    let extraLinks = []
    for (let i = 0; i < inmapsArray.length; i ++) {
      if (i < 5) {
        firstFiveLinks.push({ mapName: inmapsArray[i], mapId: inmapsLinks[i] })
      } else {
        extraLinks.push({ mapName: inmapsArray[i], mapId: inmapsLinks[i] })
      }
    }

    let output = []

    firstFiveLinks.forEach(obj => {
      output.push(<li key={obj.mapId}><Link to={`/maps/${obj.mapId}`}>{obj.mapName}</Link></li>)
    })

    if (extraLinks.length > 0) {
      if (this.state.showMoreMaps) {
        extraLinks.forEach(obj => {
          output.push(<li key={obj.mapId} className="hideExtra extraText"><Link to={`/maps/${obj.mapId}`}>{obj.mapName}</Link></li>)
        })
      }
      const text = this.state.showMoreMaps ? 'See less...' : `See ${extraLinks.length} more...`
      output.push(<li key="showMore"><span className="showMore" onClick={this.toggleShowMoreMaps}>{text}</span></li>)
    }

    return output
  }

  render = () => {
    const { currentUser, onTopicFollow, updateTopic } = this.props
    const topic = this.props.openTopic

    if (!topic) return null

    const wrappedUpdateTopic = obj => updateTopic(topic, obj)
    const wrappedTopicFollow = () => onTopicFollow(topic)

    const authorizedToEdit = topic.authorizeToEdit(currentUser)
    const isFollowing = topic.isFollowedBy(currentUser)
    const hasAttachment = topic.get('link') && topic.get('link') !== ''

    let classname = 'permission'
    if (authorizedToEdit) {
      classname += ' canEdit'
    } else {
      classname += ' cannotEdit'
    }
    if (topic.authorizePermissionChange(currentUser)) classname += ' yourTopic'

    return (
      <Draggable handle=".metacodeImage" defaultPosition={{x: 100, y: 100}}>
        <div className="showcard mapElement mapElementHidden">
          <div className={classname}>
            <div className={`CardOnGraph ${hasAttachment ? 'hasAttachment' : ''}`} id={`topic_${topic.id}`}>
              <Links topic={topic}
                ActiveMapper={this.props.currentUser}
                updateTopic={wrappedUpdateTopic}
                metacodeSets={this.props.metacodeSets}
                redrawCanvas={this.props.redrawCanvas}
              />
              <Title name={topic.get('name')}
                authorizedToEdit={authorizedToEdit}
                onChange={wrappedUpdateTopic}
              />
              <Desc desc={topic.get('desc')}
                authorizedToEdit={authorizedToEdit}
                onChange={wrappedUpdateTopic}
              />
              <Attachments topic={topic}
                authorizedToEdit={authorizedToEdit}
                updateTopic={wrappedUpdateTopic}
              />
              <div className="linkItem contributor">
                <a href={`/explore/mapper/${topic.get('user_id')}`} target="_blank">
                  <img src={topic.get('user_image')} className="contributorIcon" width="32" height="32" />
                  <div className="contributorName">{topic.get('user_name')}</div>
                </a>
              </div>
        <div className="linkItem mapCount"
          onMouseOver={this.updateState('hoveringMapCount', true)}
          onMouseOut={this.updateState('hoveringMapCount', false)}
          onClick={this.updateState('showInMaps', !this.state.showInMaps)}
        >
          <div className="mapCountIcon"></div>
          {topic.get('map_count').toString()}
          {!this.state.showInMaps && this.state.hoveringMapCount && (
            <div className="hoverTip">Click to see which maps topic appears on</div>
          )}
          {this.state.showInMaps && <div className="tip"><ul>{this.inMaps(topic)}</ul></div>}
        </div>
        <a href={`/topics/${topic.id}`}
          target="_blank"
          className="linkItem synapseCount"
          onMouseOver={this.updateState('hoveringSynapseCount', true)}
          onMouseOut={this.updateState('hoveringSynapseCount', false)}
        >
          <div className="synapseCountIcon"></div>
          {topic.get('synapse_count').toString()}
          {this.state.hoveringSynapseCount && <div className="tip">Click to see this topics synapses</div>}
        </a>
              <div className="clearfloat"></div>
            </div>
          </div>
        </div>
      </Draggable>
    )
  }
}

// 
ReactTopicCard.propTypes = {
  openTopic: PropTypes.object,
  currentUser: PropTypes.object,
  updateTopic: PropTypes.func,
  onTopicFollow: PropTypes.func,
  metacodeSets: PropTypes.arrayOf(PropTypes.shape({
    name: PropTypes.string,
    metacodes: PropTypes.arrayOf(PropTypes.shape({
      id: PropTypes.number,
      icon_path: PropTypes.string, // url
      name: PropTypes.string
    }))
  })),
  redrawCanvas: PropTypes.func
}

export default ReactTopicCard