<?php // phpcs:ignore WordPress.Files.FileName.NotHyphenatedLowercase
/**
 * Custom walker to build main navigation menu.
 *
 * Adds classes for enhanced styles and support for mobile off-canvas menu
 *
 * @author  Potenza Team
 * @package Car Dealer
 * @since   1.0.0
 */

/**
 * Mega Menu Custom navigation
 *
 * @since 1.0.0
 */
class CarDealer_Walker_Primary_Nav_Menu extends Walker_Nav_Menu {
	/**
	 * Starts the list before the elements are added.
	 *
	 * @see Walker::start_lvl()
	 *
	 * @param string   $output Used to append additional content (passed by reference).
	 * @param int      $depth  Depth of menu item. Used for padding.
	 * @param stdClass $args   An object of wp_nav_menu() arguments.
	 */
	public function start_lvl( &$output, $depth = 0, $args = array() ) {
		/* depth dependent classes */
		$indent        = ( $depth > 0 ? str_repeat( "\t", $depth ) : '' ); /* code indent */
		$display_depth = ( $depth + 1 ); /* because it counts the first submenu as 0 */
		$classes[]     = 'sub-menu';
		$classes[]     = 'drop-down-multilevel';
		$classes[]     = 'effect-fade';
		$classes[]     = ( $display_depth % 2 ? 'menu-odd' : 'menu-even' );
		$classes[]     = 'menu-depth-' . $display_depth;
		if ( ! empty( $args->left ) ) {
			$classes[] = 'left-side';
		}
		$class_names = implode( ' ', $classes );

		/* build html */
		$output .= "\n" . $indent . '<ul class="' . esc_attr( $class_names ) . '">' . "\n";
	}

	/**
	 * Starts the element output.
	 *
	 * @see Walker::start_el()
	 *
	 * @param string   $output Used to append additional content (passed by reference).
	 * @param WP_Post  $item   Menu item data object.
	 * @param int      $depth  Depth of menu item. Used for padding.
	 * @param stdClass $args   An object of wp_nav_menu() arguments.
	 * @param int      $id     Current item ID.
	 */
	public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
		global $wp_query;

		$indent      = ( $depth ) ? str_repeat( "\t", $depth ) : '';
		$class_names = '';
		$value       = '';

		/* set li classes */
		$classes = empty( $item->classes ) ? array() : (array) $item->classes;
		if ( ! isset( $args->has_children ) ) {
			$classes[] = 'menu-item-no-children';
		} else {
			$classes[] = 'hoverTrigger';
		}

		/* combine the class array into a string */
		$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );
		$class_names = ' class="' . esc_attr( $class_names ) . '"';

		/* set li id */
		$id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args );
		$id = strlen( $id ) ? ' id="' . esc_attr( $id ) . '"' : '';

		/* set outer li and its attributes */
		$output .= $indent . '<li' . $id . $value . $class_names . '>';

		/* set link attributes */
		$attributes  = '';
		$attributes .= ! empty( $item->target ) ? ' target="' . esc_attr( $item->target ) . '"' : '';
		$attributes .= ! empty( $item->xfn ) ? ' rel="' . esc_attr( $item->xfn ) . '"' : '';
		$attributes .= ! empty( $item->url ) ? ' href="' . esc_url( $item->url ) . '"' : '';

		/* Add menu button links to items with children */
		if ( isset( $args->has_children ) ) {
			$menu_pull_link = '';
		} else {
			$menu_pull_link = '';
		}

		$item_output  = $args->before;
		$item_output .= '<a' . $attributes . '>';
		$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;

		if ( isset( $args->has_children ) && $args->has_children ) {
			if ( 0 === $depth ) {
				$item_output .= '<i class="fas fa-angle-down fa-indicator"></i>';
			} else {
				if ( in_array( 'left-side', $classes ) ) { // phpcs:ignore WordPress.PHP.StrictInArray.MissingTrueStrict
					$item_output .= '<i class="fas fa-angle-left fa-indicator"></i>';
					$args->left   = true;
				} else {
					$item_output .= '<i class="fas fa-angle-right fa-indicator"></i>';
					$args->left   = false;
				}
			}
		}
		$item_output .= '</a>';
		$item_output .= $menu_pull_link . $args->after;

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

	/**
	 * Ends the element output, if needed.
	 *
	 * @see Walker::end_el()
	 *
	 * @param string   $output Used to append additional content (passed by reference).
	 * @param WP_Post  $item   Page data object. Not used.
	 * @param int      $depth  Depth of page. Not Used.
	 * @param stdClass $args   An object of wp_nav_menu() arguments.
	 */
	public function end_el( &$output, $item, $depth = 0, $args = array() ) {
		$output .= "</li>\n";
	}

	/**
	 * Ends the element output, if needed.
	 *
	 * @see Walker::display_element()
	 *
	 * @param stdClass $element  An object of wp_nav_menu().
	 * @param WP_Post  $children_elements Page data object. Not used.
	 * @param int      $max_depth  Max Depth of page. Not Used.
	 * @param int      $depth  Depth of page. Not Used.
	 * @param stdClass $args   An object of wp_nav_menu() arguments.
	 * @param stdClass $output   An object of wp_nav_menu().
	 */
	public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) {

		/* Set custom arg to tell if item has children */
		$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 );
	}
}