import Scrolling from 'discourse/mixins/scrolling';

export default Ember.Component.extend(Scrolling, {

  didReceiveAttrs() {
    this._super();

    this.set('trackerName', `scroll-tracker-${this.get('name')}`);
  },

  didInsertElement() {
    this._super();

    this.bindScrolling({ name: this.get('name') });
  },

  didRender() {
    this._super();

    const data = this.session.get(this.get('trackerName'));
    if (data && data.position >= 0 && data.tag === this.get('tag')) {
      Ember.run.next(() => $(window).scrollTop(data.position + 1));
    }
  },

  willDestroyElement() {
    this._super();

    this.unbindScrolling(this.get('name'));
  },

  scrolled() {
    this._super();

    this.session.set(this.get('trackerName'), {
      position: $(window).scrollTop(),
      tag: this.get('tag'),
    });
  },

});