awsmug/torro-forms

( function( torroBuilder, _ ) {
    'use strict';

    /**
     * A list of available element types.
     *
     * @class
     *
     * @param {torro.Builder.ElementType[]} elementTypes Registered element type objects.
     */
    function ElementTypes( elementTypes ) {
        var i;

        this.types = {};

        for ( i in elementTypes ) {
            this.types[ elementTypes[ i ].getSlug() ] = elementTypes[ i ];
        }
    }

    _.extend( ElementTypes.prototype, {

        /**
         * Returns a specific element type.
         *
         * @since 1.0.0
         * @access public
         *
         * @returns {torro.Builder.ElementType|undefined} Element type object, or undefined if not available.
         */
        get: function( slug ) {
            if ( _.isUndefined( this.types[ slug ] ) ) {
                return undefined;
            }

            return this.types[ slug ];
        },

        /**
         * Returns all element types.
         *
         * @since 1.0.0
         * @access public
         *
         * @returns {torro.Builder.ElementType[]} All element type objects.
         */
        getAll: function() {
            return this.types;
        }
    });

    /**
     * Generates an element types list instance from a REST API response.
     *
     * @since 1.0.0
     * @access public
     *
     * @returns {torro.Builder.ElementTypes} Element types object.
     */
    ElementTypes.fromApiCollection = function( collection ) {
        var elementTypes = [];

        collection.each( function( model ) {
            var attributes = _.extend({}, model.attributes );
            if ( attributes._links ) {
                delete attributes._links;
            }
            if ( attributes._embedded ) {
                delete attributes._embedded;
            }

            elementTypes.push( new torroBuilder.ElementType( attributes ) );
        });

        return new ElementTypes( elementTypes );
    };

    torroBuilder.ElementTypes = ElementTypes;

})( window.torro.Builder, window._ );