(function($) {
  'use strict';

  /* Page Section Intro Effects */
  /* -------------------------------------------------------------------- */

  function mk_section_intro_effects() {
    if (!MK.utils.isMobile()) {
      if (!$.exists('.mk-page-section.intro-true')) return;

      $('.mk-page-section.intro-true').each(function() {
        var that = this;
        MK.core.loadDependencies([ MK.core.path.plugins + 'jquery.sectiontrans.js', MK.core.path.plugins + 'tweenmax.js' ], function() {
          var $this = $(that),
            $pageCnt = $this.parent().nextAll('div'),
            windowHeight = $(window).height(),
            effectName = $this.attr('data-intro-effect'),
            $header = $('.mk-header');

          var effect = {
            fade: new TimelineLite({paused: true})
              .set($pageCnt, { opacity: 0, y: windowHeight * 0.3 })
              .to($this, 1, { opacity: 0, ease:Power2.easeInOut })
              .to($pageCnt, 1, { opacity: 1, y: 0, ease:Power2.easeInOut}, "-=.7")
              .set($this, { zIndex: '-1'}),

            zoom_out: new TimelineLite({paused: true})
              .set($pageCnt, { opacity: 0, y: windowHeight * 0.3})
              .to($this, 1.5, { opacity: .8, scale: 0.8, y: -windowHeight - 100, ease:Strong.easeInOut })
              .to($pageCnt, 1.5, { opacity: 1, y:  0, ease:Strong.easeInOut}, "-=1.3"),

            shuffle: new TimelineLite({paused: true})
              .to($this, 1.5, { y: -windowHeight/2, ease:Strong.easeInOut })
              .to($pageCnt.first(), 1.5, { paddingTop: windowHeight/2, ease:Strong.easeInOut }, "-=1.3")
          };

          console.log($pageCnt);
        

          $this.sectiontrans({
            effect: effectName
          });

          if($this.hasClass('shuffled')) {
            TweenLite.set($this, { y: -windowHeight/2 });
            TweenLite.set($this.nextAll('div').first(), { paddingTop: windowHeight/2 });
          }

          $('body').on('page_intro', function() {
            MK.utils.scroll.disable();
            $(this).data('intro', true);
            effect[effectName].play();
            setTimeout(function() {
              $header.addClass('pre-sticky');
              $header.addClass('a-sticky');
              $('.mk-header-padding-wrapper').addClass('enable-padding');
              $('body').data('intro', false);
              if(effectName === 'shuffle') $this.addClass('shuffled');
            }, 1000);

            setTimeout(MK.utils.scroll.enable, 1500);
          });

          $('body').on('page_outro', function() {
            MK.utils.scroll.disable();
            $(this).data('intro', true);
            effect[effectName].reverse();
            setTimeout(function() {
              $header.removeClass('pre-sticky');
              $header.removeClass('a-sticky');
              $('.mk-header-padding-wrapper').removeClass('enable-padding');
              $('body').data('intro', false);
              if($this.hasClass('shuffled')) $this.removeClass('shuffled');
            }, 1000);
            
            setTimeout(MK.utils.scroll.enable, 1500);
          });
        });
      });

    } else {
      $('.mk-page-section.intro-true').each(function() {
        $(this).attr('data-intro-effect', '');
      });
    }
  }

  mk_section_intro_effects();

  var debounceResize = null;
  $(window).on("resize", function() {
    if( debounceResize !== null ) { clearTimeout( debounceResize ); }
    debounceResize = setTimeout( mk_section_intro_effects, 300 );
  });
  
  /* Page Section Adaptive Height */
  /* -------------------------------------------------------------------- */
    
  function mk_section_adaptive_height() {
      $( ".mk-page-section.mk-adaptive-height" ).each( function() {
          var imageHeight = $( this ).find( ".mk-adaptive-image" ).height();
          $( this ).css( "height", imageHeight );
      });
  }
  
  $( window ).on( "load resize", mk_section_adaptive_height );


  /* Page Section Image Loader */
  /* -------------------------------------------------------------------- */

  // Get All Related Layers
  var init = function init() {
    var $allLayers = $('.mk-page-section .background-layer').filter(function(index) {
      var isLazyLoad = $(this).attr('data-mk-lazyload') === 'true';
      if ( !isLazyLoad ) {
        MK.component.BackgroundImageSetter.init( $(this) );
      }
      return isLazyLoad;
    });;
    
    // Load BG Images if the user scroll to them
    if ( $allLayers.length ) {

      $(window).on('scroll.mk_page_section_lazyload', MK.utils.throttle(500, function(){
        $allLayers.each(function(index, elem) {
          if ( MK.utils.isElementInViewport(elem) ) {
            MK.component.BackgroundImageSetter.init( $(elem) );
            $allLayers = $allLayers.not( $(elem) );  // Remove element from the list when loaded to reduce the amount of iteration in each()
          }
        });
      }));

      // First init
      $(window).trigger('scroll.mk_page_section_lazyload');

      // Handle the resize
      MK.component.BackgroundImageSetter.onResize($allLayers);

    }
  }
  init();

  $(window).on('vc_reload', init);

  /* Page Section Layout */
  /* -------------------------------------------------------------------- */

  function mk_section_half_layout() {
    $(".mk-page-section.half_boxed").each(function() {
      var $section = $(this);
      if ($(window).width() > mk_grid_width) {
        var margin = ($(window).width() - mk_grid_width) / 2;
        var $section_inner = $section.find('.mk-half-layout-inner');
        if($section.hasClass('half_left_layout')){
          $section_inner.css({
            marginRight: margin + 'px'
          });
        }
        if($section.hasClass('half_right_layout')){
          $section_inner.css({
            marginLeft: margin + 'px'
          });
        }
      }
    });
  }

  $(window).on("load resize", mk_section_half_layout);

	/* Page Section - Fluid Width Equal Height Columns */
	/* -------------------------------------------------------------------- */
	function mk_reset_section_fluid_width_equal_height_columns() {
		var $colWrappers = '', maxWidth = 850;

		$colWrappers = $('.page-section-content.fluid-width-equal-height-columns');

		$colWrappers.each(function() {
			var $colWrapper = '', colHeight = 0;
			$colWrapper = $(this);
			$colWrapper.find('.wpb_column.column_container').each(function() {
				var $col = $(this), size = $(this).children('div').length;
				if (size > 0) {
					$col.removeAttr("style");
					$col.children('div').each(function() {
						$(this).removeAttr("style");
					});
				}
			});
		});
	}

	function mk_section_fluid_width_equal_height_columns() {
		mk_reset_section_fluid_width_equal_height_columns();

		var $colWrappers = '', maxWidth = 850, $pageSection = $('.page-section-content');

		if ( ! $pageSection.hasClass('.fluid-width-equal-height-columns') ) {
			$pageSection.find('.wpb_column.column_container').removeAttr( 'style' );
			$pageSection.find('.wpb_column.column_container .vc_element').removeAttr( 'style' );
		}

		$colWrappers = $('.page-section-content.fluid-width-equal-height-columns');

		$colWrappers.each(function() {
			var $colWrapper = '', colHeight = 0;
			$colWrapper = $(this);

			if ($colWrapper.length > 0) {
				/* Get the minimum height of the wrapper */
				colHeight = $colWrappers.outerHeight(true);
				$colWrapper.find('.wpb_column.column_container').each(function() {
					var $col = $(this);
					if ($col.length > 0) {
						colHeight = ($col.outerHeight(true) > colHeight) ? $col.outerHeight(true) : colHeight;
					}
				});
			}

			if (colHeight > 0) {
				$colWrapper.find('.wpb_column.column_container').each(function() {
					var $col = $(this), size = $(this).children('div').length;
					if (size > 0) {
						colHeight = ($(window).width() < maxWidth) ? 'initial' : colHeight;
						$col.css("height", colHeight);
						if ($colWrapper.hasClass('vertical-align-center')) {
							$col.children('div').each(function() {
								var elHeight = ($(window).width() < maxWidth) ? 'initial' : (colHeight/size);
								$(this).css("height", elHeight);
							});
						}
					}
				});
			}
		});
	}
	$(window).on('load vc_reload', function() {
		setTimeout(function() {
		/* 
			Somehow the values are not correctly updated for the screens
			and we need to put setTimeout to fix the issue.
		*/
		mk_section_fluid_width_equal_height_columns();
		}, 500);
	});

	var debounceResize = null;
	$(window).on("resize", function() {
		if( debounceResize !== null ) { clearTimeout( debounceResize ); }
		debounceResize = setTimeout( mk_section_fluid_width_equal_height_columns(), 500 );
	});

}(jQuery));