(function (window, document, $) {

	'use strict';

	// Stub inicial para evitar 404 e permitir futura expansão.

	var HNGCart = {

		initialized: false,

		init: function () {

			if (this.initialized) {
				return;
      }

			this.initialized = true;

			// Exemplo: bind genérico para adicionar ao carrinho futuramente

			$( document ).on(
				'click',
				'.hng-add-to-cart',
				function (e) {

					e.preventDefault();

					var productId = $( this ).data( 'product-id' );

					HNGCart.add( productId, 1 );

				}
			);

			if (window.hngCommerce && window.hngCommerce.i18n) {

				console.log( '[HNGCart] carregado' );

			}

		},

		add: function (productId, qty) {

			// Placeholder de chamada AJAX futura

			console.log( '[HNGCart] add()', productId, qty );

			// Suporte para feedback imediato

			if (window.hngCommerce && window.hngCommerce.i18n) {

				HNGCart.notice( window.hngCommerce.i18n.added_to_cart || 'Adicionado' );

			}

		},

		notice: function (msg) {

			if ( ! msg) {
				return;
      }

			var el = document.createElement( 'div' );

			el.className = 'hng-cart-notice';

			el.textContent = msg;

			document.body.appendChild( el );

			setTimeout(
				function () {

					el.classList.add( 'visible' );

				},
				10
			);

			setTimeout(
				function () {

					el.classList.remove( 'visible' );

					setTimeout(
						function () {

							if (el.parentNode) {
								el.parentNode.removeChild( el ); }

						},
						400
					);

				},
				3000
			);

		},

		refresh: function () {

			console.log( '[HNGCart] refresh()' );

		}

	};

	window.HNGCart = HNGCart;

	$(
		function () {
			HNGCart.init(); }
	);

})( window, document, jQuery );
