(function($){
  	/* 回到購買處 */
  	$('.gobuy').on('click',function(){
  		var tol = $(window).height();
  		console.log(tol);
  		var buy = $('.button-line').offset().top-tol+50 ;
  	    $("html,body").scrollTop(buy);
  	});
	/*為JQ添加naturalWidth()和naturalHeight()方法，抓取圖片原始尺寸*/
    var
    props = ['Width', 'Height'],
    prop;

    while (prop = props.pop()) {
    (function (natural, prop) {
      $.fn[natural] = (natural in new Image()) ?
      function () {
      return this[0][natural];
      } :
      function () {
      var
      node = this[0],
      img,
      value;

      if (node.tagName.toLowerCase() === 'img') {
        img = new Image();
        img.src = node.src,
        value = img[prop];
      }
      return value;
      };
    }('natural' + prop, prop.toLowerCase()));
    }

	var _window = $(window);
    var change = 0;
    var moreview = false;

    //關閉跳窗
    $(".inner").on('click','.close,.add_to_cart',function(){
        $(".selectPopupBox").removeClass('is-show');
    });

    /*
    $('article').on('click','.open-preview',function(){
    	var nowitem = $('.productImg .active').prevAll('.owl-item').length;

    	$('article .previewbox').css('display','block')
		.find('img').eq(nowitem).css('display','block');
    });
    $('article').on('click','.close',function(){
    	$('article .previewbox').removeAttr('style')
		.find('img').removeAttr('style');
    });
    //*/
    
    smallPicBox($(".prod-itemBox .productView"));
    videoBox();
    $('.productImg.mobile').owlCarousel({
          loop : false,
          items : 1,
          nav : true,
      });
    $('.productImg.mobile').on('changed.owl.carousel',function(e){
      var num  = e.item.index;

      if(document.getElementById("Video")){
        if($(".productView").find(".owl-item").eq(num).find("#Video").attr("style")){
          $("#big_picture").hide();
          document.getElementById("Video").play();
        }else{
          $("#big_picture").show();
          document.getElementById("Video").pause();
        }
      }
    });

    
    
    
    // ==========================================================
    //  折價券
    // ==========================================================

    $('.product-coupon .coupon-list').owlCarousel({
        loop : true,
        margin: 25,
        navText : ['',''],
        responsive:{
            0:{
                items : 1,
                nav : false,
                dots: true,
            },
            769:{
                items : 2,
                nav : false,
                dots: true,
            },
            1201:{
                items : 3,
                nav : true,
                dots: false,
            }
        },
    });
  
  //關聯商品輪播&手機版解除輪播
  relatedCarousel($(".related-carousel"))
  $(window).on("resize", function(){
    relatedCarousel($(".related-carousel"))
  })


}(jQuery));

function relatedCarousel(carouselbox){
  if($(window).width() < 768){
    carouselbox.trigger("destroy.owl.carousel")
  }else{
    carouselbox.owlCarousel({
      responsive:{
        0: {
          items:2,
          margin: 10
        },
        769: {
          items:3,
          margin: 32
        },
        1025: {
          items:4,
          margin: 32
        },
        1681: {
          items:4,
          margin: 44
        }
      },
      nav: true,
      dots: false
    })
  }
}