import ArrayProxy from 'ember-controller/proxy'
import firebase   from 'firebase'
import _          from 'npm:lodash'



export default ArrayProxy.extend({
  ref: null,

  init () {
    this.set('ref', firebase.database().ref('courses').limitToLast(10))

    return this
  },

  loadContent: function () {
    this.ref.on('value', snapshot => {
      const courses = _.map(snapshot.val(), (value, key) => {
        value.id = key
        return value
      })

      this.set('content', courses)
    })
  }.observes('ref')
})