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Editing: storage.js

/* global vc, Backbone */
if ( !window.vc ) {
	window.vc = {};
}

( function ( $ ) {
	'use strict';

// Store and manage state for
	// SEO fields data and analysis results data
	// via Backbone Model
	var SeoStorage = Backbone.Model.extend({
		defaults: {
			formData: {
				keyphrase: '',
				title: '',
				description: '',
				slug: '',
				isUsedKeyphrase: ''
			},
			results: []
		},
		setResults: function ( item, type, state ) {
			var currentState = this.get( state );
			if ( 'focus-keyphrase' === type ) {
				type = 'keyphrase';
				if ( item && item !== this.get( state ).keyphrase ) {
					var _this = this;
					var data = {
						action: 'wpb_seo_check_key_phrase',
						key_phrase: item,
						post_id: window.vc_post_id,
						_vcnonce: window.vcAdminNonce
					};
					$.ajax({
						type: 'POST',
						url: window.ajaxurl,
						data: data
					}).done( function ( response ) {
						if ( response.success ) {
							currentState.isUsedKeyphrase = response.data;
							_this.set( state, currentState );
							_this.trigger( 'formData', 'change', currentState );
						}
					}).fail( function ( response ) {
						console.error( 'Failed to get the previously used keyphrase response: ' + response );
					});
				}
			}
			currentState[type] = item;
			this.set( state, currentState );
			if ( 'formData' === state ) {
				this.trigger( 'formData', 'change', currentState );
			}
		},
		// Custom method to add, update, or remove an item in the results array
		updateResult: function ( state, title, description ) {
			var item = {
				state: state,
				title: title,
				description: description
			};
			var currentResults = this.get( 'results' ).slice(); // Create a shallow copy
			// Find the index of the item in the array
			var indexToModify = currentResults.findIndex( function ( result ) {
				return result.title === item.title;
			});
			// If the item was found, update it in the array
			if ( -1 !== indexToModify ) {
				currentResults[indexToModify] = item;
				this.trigger( 'resultChanged', 'update', item );
			} else {
				// If the item was not found, add it to the array
				currentResults.push( item );
				this.trigger( 'resultChanged', 'add', item );
			}

// Update the result array in the model
			this.set( 'results', currentResults );
		},
		resetResult: function ( title ) {
			var currentResults = this.get( 'results' );
			var resetResults = currentResults.filter( function ( result ) {
				return result.title !== title;
			});
			this.set( 'results', resetResults );
		}
	});

vc.seo_storage = new SeoStorage();

})( window.jQuery );

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