import Ember from 'ember';

export default Ember.Controller.extend({
  urn: null,
  currentName: null,
  urnWatched: false,
  detailview: true,
  previousPage: function(){
    var model = this.get("model");
    if (model && model.data && model.data.page) {
      var currentPage = model.data.page;
      if (currentPage <= 1) {
        return currentPage;
      }
      else {
        return currentPage - 1;
      }
    } else {
      return 1;
    }

  }.property('model.data.page'),
  nextPage: function(){
    var model = this.get("model");
    if (model && model.data && model.data.page) {
      var currentPage = model.data.page;
      var totalPages = model.data.totalPages;
      if (currentPage >= totalPages) {
        return totalPages;
      }
      else {
        return currentPage + 1;
      }
    } else {
      return 1;
    }
  }.property('model.data.page'),
  first: function(){
    var model = this.get("model");
    if (model && model.data && model.data.page) {
      var currentPage = model.data.page;
      if (currentPage <= 1) {
        return true;
      }
      else {
        return false
      }
    } else {
      return false;
    }
  }.property('model.data.page'),
  last: function(){
    var model = this.get("model");
    if (model && model.data && model.data.page) {
      var currentPage = model.data.page;
      var totalPages = model.data.totalPages;
      if (currentPage >= totalPages) {
        return true;
      }
      else {
        return false
      }
    } else {
      return false;
    }
  }.property('model.data.page'),
  getUrnWatchId: function(urn){
    var controller = this;
    var watcherEndpoint = "/api/v1/urn/watch?urn=" + urn
    $.get(watcherEndpoint, function(data){
      if(data.id && data.id !== 0) {
        controller.set('urnWatched', true)
        controller.set('urnWatchedId', data.id)
      } else {
        controller.set('urnWatched', false)
        controller.set('urnWatchedId', 0)
      }
    })
  },
  actions: {
    watchUrn: function(urn) {
      if (!urn)
      {
        urn = "DATASETS_ROOT";
      }
      var _this = this
      var url = "/api/v1/urn/watch"
      var token = $("#csrfToken").val().replace('/', '')
      if(!this.get('urnWatched')) {
        //this.set('urnWatched', false)
        $.ajax({
          url: url,
          method: 'POST',
          header: {
            'Csrf-Token': token
          },
          data: {
            csrfToken: token,
            urn: urn,
            type: 'urn',
            'notification_type': 'WEEKLY'
          }
        }).done(function(data, txt, xhr){
          Notify.toast('You are now watching: ' + urn , 'Success', 'success')
          _this.set('urnWatched', true)
          _this.getUrnWatchId(urn);
        }).fail(function(xhr, txt, error){
          Notify.toast('URN could not be watched', 'Error Watching Urn', 'error')
        })
      } else {
        url += ("/" + this.get('urnWatchedId'))
        url += "?csrfToken=" + token
        $.ajax({
          url: url,
          method: 'DELETE',
          header: {
            'Csrf-Token': token
          },
          dataType: 'json'
        }).done(function(data, txt, xhr){
          _this.set('urnWatched', false)
          _this.set('urnWatchedId', 0)
        }).fail(function(xhr, txt, error){
          Notify.toast('Could not unwatch urn', 'Error', 'error')
        })
      }
    }
  }
});