import Ember from 'ember';

import _ from 'lodash/lodash';

export default Ember.Route.extend({

  player: Ember.inject.service(),

  filter: Ember.inject.service(),

  index: 0,

  limit: 40,

  sort: 'alphabetical',

  isFetching: false,

  themes: null,

  total: 0,

  model() {

    var filterQueryParams = _.clone(this.get('filter').get('queryParamsValues'));

    var promise = this.get('store').query('theme', _.merge(filterQueryParams, {

      'limit': this.get('limit'),

      'index': this.get('index'),

      'sort': this.get('sort')

    }));

    promise.then(response => {

      this.set('themes', response.get('content'));

      this.set('total', response.get('meta').total);

    });

    return promise;

  },

  activate: function () {

    this.get('player').set('window', false);

  },

  filterObserver: Ember.observer('filter.date.[]', 'filter.discourse.[]', 'filter.language', 'filter.location', 'filter.theme.[]', function() {

      this.set('index', 0);

      this.refresh();

  }),

  actions: {

    loadMore: function() {

      if(this.get('isFetching') || (this.get('themes').length === this.get('total'))) {

        return;

      }

      this.set('isFetching', true);

      this.set('index', this.get('index') + 1);

      var filterQueryParams = _.clone(this.get('filter').get('queryParamsValues'));

      this.get('store').query('theme', _.merge(filterQueryParams, {

        'limit': this.get('limit'),

        'index': this.get('index'),

        'sort': this.get('sort')

      })).then(response => { // success

        this.get('themes').pushObjects(response.get('content'));

        this.set('isFetching', false);

      }, () => { // fail

        this.set('isFetching', false);

      });

    },

    setSortQueryparams: function (sort) {

      this.set('sort', sort);

      this.set('index', 0);

      this.refresh();

      return false;

    },

  }

});