<?php

if (!class_exists('AcademistElatedClassStickyNavigationWalker')) {
	class AcademistElatedClassStickyNavigationWalker extends Walker_Nav_Menu {

		// add classes to ul sub-menus
		function display_element( $element, &$children_elements, $max_depth, $depth=0, $args, &$output ) {
			$id_field = $this->db_fields['id'];
			if ( is_object( $args[0] ) ) {
				$args[0]->has_children = ! empty( $children_elements[$element->$id_field] );
			}
			return parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output );
		}

		function start_lvl( &$output, $depth = 0, $args = array() ) {

			$indent = str_repeat("\t", $depth);
			if($depth == 0){
				$out_div = '<div class="second"><div class="inner">';
			}else{
				$out_div = '';
			}

			// build html
			$output .= "\n" . $indent . $out_div  .'<ul>' . "\n";
		}
		function end_lvl( &$output, $depth = 0, $args = array() ) {
			$indent = str_repeat("\t", $depth);

			if($depth == 0){
				$out_div_close = '</div></div>';
			}else{
				$out_div_close = '';
			}

			$output .= "$indent</ul>". $out_div_close ."\n";
		}

		// add main/sub classes to li's and links
		function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {

			$sub = "";
			$indent = ( $depth > 0 ? str_repeat( "\t", $depth ) : '' ); // code indent
			if($depth==0 && $args->has_children) :
				$sub = ' has_sub';
			endif;
			if($depth==1 && $args->has_children) :
				$sub = 'sub';
			endif;

			// passed classes
			$classes = empty( $item->classes ) ? array() : (array) $item->classes;

			$class_names = esc_attr( implode( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) ) );

			//menu type class
			$menu_type = "";
			if($depth==0){
				if($item->type_menu == "wide"){
					$menu_type = " wide";
				} else if( $item->type_menu == "wide-1-3" ) {
					$menu_type = " wide wide-1-3";
				} else {
					$menu_type = " narrow";
				}
			}

			//wide menu position class
			$wide_menu_position = "";
			if($depth==0){
				if($item->wide_position == "right"){
					$wide_menu_position = " right_position";
				}elseif($item->wide_position == "left"){
					$wide_menu_position = " left_position";
				}else{
					$wide_menu_position = "";
				}
			}

			$anchor = '';
			if($item->anchor != ""){
				$anchor = '#'.esc_attr($item->anchor);
				$class_names .= ' anchor-item';
			}

			$active = "";
			// depth dependent classes
			if ($item->anchor == "" && (($item->current && $depth == 0) || ($item->current_item_ancestor && $depth == 0))):
				$active = 'eltdf-active-item';
			endif;

			// build html
			$output .= $indent . '<li id="sticky-nav-menu-item-'. $item->ID . '" class="' . $class_names . ' '. $active . $sub . $menu_type . $wide_menu_position .'">';

			$current_a = "";
			// link attributes
			$attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
			$attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
			$attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
			$attributes .= ' href="'   . esc_url( $item->url        ) .$anchor.'"';
			if (($item->current && $depth == 0) ||  ($item->current_item_ancestor && $depth == 0) ):
				$current_a .= ' current ';
			endif;

			$no_link_class = '';
			if($item->nolink != '') {
				$no_link_class = ' no_link';
			}

			$attributes .= ' class="'.$current_a.$no_link_class.'"';
			$item_output = $args->before;
			if($item->hide == ""){
				if($item->nolink == ""){
					$item_output .= '<a'. $attributes .'><span class="item_outer">';
				} else{
					$item_output .= '<a'. $attributes .' onclick="JavaScript: return false;"><span class="item_outer">';
				}

				$icon = '';
				if($item->icon !== "" && $item->icon !== 'null') {
					$icon = $item->icon; 
				}

				$icon_pack = 'font_awesome';

				if(empty($this->icon_pack)) {
					$item->icon_pack = $icon_pack;
				}
				
				if($icon !== '') {
					if($item->icon_pack == 'font_awesome') {
						$icon .= ' fa';
					}

					$item_output .= '<span class="menu_icon_wrapper"><i class="menu_icon '.$icon.'"></i></span>';
				}
				
				$item_output .= '<span class="item_text">';
				$item_output .= apply_filters('the_title', $item->title, $item->ID);

                $featured_icon = '';
                if($item->featured_icon !== ""){
                    $featured_icon .= '<i class="eltdf-menu-featured-icon fa '.$item->featured_icon .'"></i>';
                }

                $item_output .= $featured_icon;

				$item_output .= '</span>'; //close span.item_text
				$item_output .= '<span class="plus"></span>';

				//append arrow for dropdown

				if($args->has_children && $depth == 0) {
					$item_output .= '<i class="eltdf-menu-arrow arrow_carrot-down"></i>';
				}

				$item_output .= '</span></a>';
			}

			if($item->sidebar != "" && $depth > 0){
				ob_start();
				dynamic_sidebar($item->sidebar);
				$sidebar_content = ob_get_contents();
				ob_end_clean();
				$item_output .= $sidebar_content;
			}

			$item_output .= $args->after;

			// build html
			$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
		}
	}
}