<?php
namespace WCFAddonsPro\Inc;
use Walker_Nav_Menu;


class Offcanvas_Walker_Nav extends Walker_Nav_Menu
{
	/**
	 * Starts the list before the elements are added.
	 *
	 * @see Walker::start_lvl()
	 *
	 * @since 3.0.0
	 *
	 * @param string $output Passed by reference. Used to append additional content.
	 * @param int    $depth  Depth of menu item. Used for padding.
	 * @param array  $args   An array of arguments. @see wp_nav_menu()
	 */
	public function start_lvl( &$output, $depth = 0, $args = array() ) {
		$indent = str_repeat("\t", $depth);
		$output .= "\n$indent<ul class=\" dp-menu\">\n";
	}
	/**
	 * Ends the list of after the elements are added.
	 *
	 * @see Walker::end_lvl()
	 *
	 * @since 3.0.0
	 *
	 * @param string $output Passed by reference. Used to append additional content.
	 * @param int    $depth  Depth of menu item. Used for padding.
	 * @param array  $args   An array of arguments. @see wp_nav_menu()
	 */
	public function end_lvl( &$output, $depth = 0, $args = array() ) {
		$indent = str_repeat("\t", $depth);
		$output .= "$indent</ul>\n";
	}
	/**
	 * Start the element output.
	 *
	 * @see Walker::start_el()
	 *
	 * @since 3.0.0
	 *
	 * @param string $output Passed by reference. Used to append additional content.
	 * @param object $item   Menu item data object.
	 * @param int    $depth  Depth of menu item. Used for padding.
	 * @param array  $args   An array of arguments. @see wp_nav_menu()
	 * @param int    $id     Current item ID.
	 */
	public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
		$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
		$classes = empty( $item->classes ) ? array() : (array) $item->classes;
		$classes[] = 'menu-item-' . $item->ID;
		/**
		 * Filter the CSS class(es) applied to a menu item's list item element.
		 *
		 * @since 3.0.0
		 * @since 4.1.0 The `$depth` parameter was added.
		 *
		 * @param array  $classes The CSS classes that are applied to the menu item's `<li>` element.
		 * @param object $item    The current menu item.
		 * @param array  $args    An array of {@see wp_nav_menu()} arguments.
		 * @param int    $depth   Depth of menu item. Used for padding.
		 */
		$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth ) );
		// New
		$class_names .= ' nav-item';

		if (in_array('menu-item-has-children', $classes)) {
			if($depth == 0){
				$class_names .= " dropdown";
			}else{
				$class_names .= " dropdown-submenu ";
			}

		}
		if (in_array('current-menu-item', $classes)) {
			$class_names .= ' active';
		}
		//
		$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
		// print_r($class_names);
		/**
		 * Filter the ID applied to a menu item's list item element.
		 *
		 * @since 3.0.1
		 * @since 4.1.0 The `$depth` parameter was added.
		 *
		 * @param string $menu_id The ID that is applied to the menu item's `<li>` element.
		 * @param object $item    The current menu item.
		 * @param array  $args    An array of {@see wp_nav_menu()} arguments.
		 * @param int    $depth   Depth of menu item. Used for padding.
		 */
		$id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args, $depth );
		$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
		// New
		// if ($depth === 0) {
		//     $output .= $indent . '<li' . $id . $class_names .'>';
		// }
		//
		$output .= $indent . '<li' . $id . $class_names .'>';
		$atts = array();
		$atts['title']  = ! empty( $item->attr_title ) ? $item->attr_title : '';
		$atts['target'] = ! empty( $item->target )     ? $item->target     : '';
		$atts['rel']    = ! empty( $item->xfn )        ? $item->xfn        : '';
		$atts['href']   = ! empty( $item->url )        ? $item->url        : '';
		// New

		$atts['class'] = 'nav-link';
		if ($depth === 0 && in_array('menu-item-has-children', $classes)) {
			$atts['class']       .= ' has-child dropdown__toggle';
			$atts['data-toggle']  = 'dropdown';
		}
		if ($depth > 0) {
			$manual_class = array_values($classes)[0] .' '. 'dropdown_items';
			$atts ['class']= $manual_class;

			if(in_array('menu-item-has-children', $classes)){
				$atts['class']       .= ' has-child dropdown__toggle';
			}
		}
		if (is_array($item->classes) && in_array('current-menu-item', $item->classes)) {
			$atts['class'] .= ' active';
		}
		// print_r($item);
		//
		/**
		 * Filter the HTML attributes applied to a menu item's anchor element.
		 *
		 * @since 3.6.0
		 * @since 4.1.0 The `$depth` parameter was added.
		 *
		 * @param array $atts {
		 *     The HTML attributes applied to the menu item's `<a>` element, empty strings are ignored.
		 *
		 *     @type string $title  Title attribute.
		 *     @type string $target Target attribute.
		 *     @type string $rel    The rel attribute.
		 *     @type string $href   The href attribute.
		 * }
		 * @param object $item  The current menu item.
		 * @param array  $args  An array of {@see wp_nav_menu()} arguments.
		 * @param int    $depth Depth of menu item. Used for padding.
		 */
		$atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args, $depth );

		$attributes = '';
		foreach ( $atts as $attr => $value ) {
			if ( ! empty( $value ) ) {
				$value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
				$attributes .= ' ' . $attr . '="' . $value . '"';
			}
		}
		$item_output = $args->before;

		//
		$item_output .= '<a'. $attributes .'>';
		/** This filter is documented in wp-includes/post-template.php */
		$item_output .= $args->link_before . '<span class="ha-nav-link">' . apply_filters( 'the_title', $item->title, $item->ID ) . '</span>'.$args->link_after;

		if ( in_array('menu-item-has-children', $classes) ) {
			$item_output .= '<span class="nav-direction-icon" data-icon="+"></span>';
		}

		$item_output .= '</a>';
		$item_output .= $args->after;
		/**
		 * Filter a menu item's starting output.
		 *
		 * The menu item's starting output only includes `$args->before`, the opening `<a>`,
		 * the menu item's title, the closing `</a>`, and `$args->after`. Currently, there is
		 * no filter for modifying the opening and closing `<li>` for a menu item.
		 *
		 * @since 3.0.0
		 *
		 * @param string $item_output The menu item's starting HTML output.
		 * @param object $item        Menu item data object.
		 * @param int    $depth       Depth of menu item. Used for padding.
		 * @param array  $args        An array of {@see wp_nav_menu()} arguments.
		 */
		$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
	}
	/**
	 * Ends the element output, if needed.
	 *
	 * @see Walker::end_el()
	 *
	 * @since 3.0.0
	 *
	 * @param string $output Passed by reference. Used to append additional content.
	 * @param object $item   Page data object. Not used.
	 * @param int    $depth  Depth of page. Not Used.
	 * @param array  $args   An array of arguments. @see wp_nav_menu()
	 */
	public function end_el( &$output, $item, $depth = 0, $args = array() ) {
		if ($depth === 0) {
			$output .= "</li>\n";
		}
	}

	/**
	 * Menu Fallback
	 * =============
	 * If this function is assigned to the wp_nav_menu's fallback_cb variable
	 * and a manu has not been assigned to the theme location in the WordPress
	 * menu manager the function with display nothing to a non-logged in user,
	 * and will add a link to the WordPress menu manager if logged in as an admin.
	 *
	 * @param array $args passed from the wp_nav_menu function.
	 *
	 */
	public static function fallback( $args ) {

		if ( current_user_can( 'manage_options' ) ) {
			extract( $args );
			$fb_output = null;
			if ( $container ) {
				$fb_output = '<' . $container;
				if ( $container_id ) {
					$fb_output .= ' id="' . $container_id . '"';
				}
				if ( $container_class ) {
					$fb_output .= ' class="menu-fallback ' . $container_class . '"';
				}
				$fb_output .= '>';
			}
			$fb_output .= '<ul';
			if ( $menu_id ) {
				$fb_output .= ' id="' . $menu_id . '"';
			}
			if ( $menu_class ) {
				$fb_output .= ' class="' . $menu_class . '"';
			}
			$fb_output .= '>';
			$fb_output .= '<li><a href="' . admin_url( 'nav-menus.php' ) . '">Add a menu</a></li>';
			$fb_output .= '</ul>';
			if ( $container ) {
				$fb_output .= '</' . $container . '>';
			}
			echo  $fb_output;
		}
	}

}