import { Component } from 'substance'
import { addModelObserver, removeModelObserver } from '../../kit'
import CardComponent from '../shared/CardComponent'

export default class CollectionEditor extends Component {
  getActionHandlers () {
    return {
      'remove-item': this._removeCollectionItem
    }
  }

  // TODO: we need a simpler way to register an observer for a given model
  didMount () {
    addModelObserver(this.props.model, this.rerender, this, { stage: 'render' })
  }

  dispose () {
    removeModelObserver(this)
  }

  render ($$) {
    const model = this.props.model
    let items = model.getItems()
    let el = $$('div').addClass('sc-collection-editor')
    items.forEach(item => {
      let ItemEditor = this._getItemComponentClass(item)
      el.append(
        $$(CardComponent).append(
          $$(ItemEditor, {
            model: item,
            // LEGACY
            // TODO: try to get rid of this
            node: item._node
          }).ref(item.id)
        )
      )
    })
    return el
  }

  _getItemComponentClass (item) {
    let ItemComponent = this.getComponent(item.type, true)
    if (!ItemComponent) {
      // try to find a component registered for a parent type
      if (item._node) {
        ItemComponent = this._getParentTypeComponent(item._node)
      }
    }
    return ItemComponent || this.getComponent('entity')
  }

  _getParentTypeComponent (node) {
    let superTypes = node.getSchema().getSuperTypes()
    for (let type of superTypes) {
      let NodeComponent = this.getComponent(type, true)
      if (NodeComponent) return NodeComponent
    }
  }

  _removeCollectionItem (item) {
    const model = this.props.model
    model.removeItem(item)
    // TODO: this is only necessary for fake collection models
    // i.e. models that are only virtual, which I'd like to avoid
    this.rerender()
  }
}

@@ -309,83 +309,8 @@
  %7D%0A%0A
-  // TODO: we need a simpler way to register an observer for a given model%0A
   di

Tidy up.