<?php

/**
 * backend mega menu
 */
class glaza_walker_backend extends Walker_Nav_Menu {
	public function start_lvl( &$output, $depth = 0, $args = array() ) {
	}

	public function end_lvl( &$output, $depth = 0, $args = array() ) {
	}

	public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
		global $_wp_nav_menu_max_depth;
		$_wp_nav_menu_max_depth = $depth > $_wp_nav_menu_max_depth ? $depth : $_wp_nav_menu_max_depth;

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

		ob_start();
		$item_id = esc_attr( $item->ID );

		//category mega menu
		if ( empty( $item->glaza_mega_cat ) ) {
			$glaza_item_mega_cat = null;
		} else {
			$glaza_item_mega_cat = esc_attr( $item->glaza_mega_cat[0] );
		}

		//enable ajax pagination
		if ( empty( $item->glaza_mega_cat_ajax ) ) {
			$glaza_item_mega_cat_ajax = null;
		} else {
			$glaza_item_mega_cat_ajax = esc_attr( $item->glaza_mega_cat_ajax[0] );
		}

		$removed_args = array( 'action', 'customlink-tab', 'edit-menu-item', 'menu-item', 'page-tab', '_wpnonce', );
		$original_title = '';

		if ( 'taxonomy' == $item->type ) {
			$original_title = get_term_field( 'name', $item->object_id, $item->object, 'raw' );
			if ( is_wp_error( $original_title ) ) {
				$original_title = false;
			}
		} elseif ( 'post_type' == $item->type ) {
			$original_object = get_post( $item->object_id );
			$original_title  = $original_object->post_title;
		}

		$classes = array(
			'menu-item menu-item-depth-' . $depth,
			'menu-item-' . esc_attr( $item->object ),
			'menu-item-edit-' . ( ( isset( $_GET['edit-menu-item'] ) && $item_id == $_GET['edit-menu-item'] ) ? 'active' : 'inactive' ),
		);

		$title = $item->title;

		if ( ! empty( $item->_invalid ) ) {
			$classes[] = 'menu-item-invalid';
			$title     = sprintf( esc_html__( '%s (Invalid)', 'glaza' ), $item->title );
		} elseif ( isset( $item->post_status ) && 'draft' == $item->post_status ) {
			$classes[] = 'pending';
			$title     = sprintf( esc_html__( '%s (Pending)', 'glaza' ), $item->title );
		}

		$title = ( ! isset( $item->label ) || '' == $item->label ) ? $title : $item->label;

		$submenu_text = '';
		if ( 0 == $depth ) {
			$submenu_text = 'style="display: none;"';
		} ?>
	<li id="menu-item-<?php echo esc_attr( $item_id ); ?>" class="<?php echo implode( ' ', $classes ); ?>">
		<dl class="menu-item-bar">
			<dt class="menu-item-handle">
				<span class="item-title"><span class="menu-item-title"><?php echo esc_html( $title ); ?></span> <span class="is-submenu" <?php echo esc_attr( $submenu_text ); ?>><?php esc_html_e( 'sub item', 'glaza' ); ?></span></span>
                    <span class="item-controls">
                        <span class="item-type"><?php echo esc_html( $item->type_label ); ?></span>
                        <span class="item-order hide-if-js">
                            <a href="<?php echo wp_nonce_url( add_query_arg(array( 'action'    => 'move-up-menu-item','menu-item' => $item_id), remove_query_arg( $removed_args, admin_url( 'nav-menus.php' ))),'move-menu_item');?>" class="item-move-up"><abbr title="<?php esc_attr_e( 'Move up', 'glaza' ); ?>">&#8593;</abbr></a>|
                            <a href="<?php echo wp_nonce_url( add_query_arg( array( 'action'    => 'move-down-menu-item', 'menu-item' => $item_id), remove_query_arg( $removed_args, admin_url( 'nav-menus.php' ))), 'move-menu_item');?>" class="item-move-down"><abbr title="<?php esc_attr_e( 'Move down', 'glaza' ); ?>">&#8595;</abbr></a>
                        </span>
                        <a class="item-edit" id="edit-<?php echo esc_attr( $item_id ); ?>" title="<?php echo esc_attr( 'Edit Menu Item' ); ?>" href="<?php echo ( isset( $_GET['edit-menu-item'] ) && $item_id == $_GET['edit-menu-item'] ) ? admin_url( 'nav-menus.php' ) : esc_url( add_query_arg( 'edit-menu-item', $item_id, remove_query_arg( $removed_args, admin_url( 'nav-menus.php#menu-item-settings-' . $item_id ) ) ) ); ?>"><?php esc_html_e( 'Edit Menu Item', 'glaza' ); ?></a>
                    </span>
			</dt>
		</dl>

		<div class="menu-item-settings" id="menu-item-settings-<?php echo esc_attr( $item_id ); ?>">

			<?php if ( 'custom' == $item->type ) : ?>
				<p class="field-url description description-wide">
					<label for="edit-menu-item-url-<?php echo esc_attr( $item_id ); ?>">
						<?php esc_html_e( 'URL', 'glaza' ); ?><br/>
						<input type="text" id="edit-menu-item-url-<?php echo esc_attr( $item_id ); ?>" class="widefat code edit-menu-item-url" name="menu-item-url[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_url( $item->url ); ?>"/>
					</label>
				</p>
			<?php endif; ?>

			<p class="description description-thin">
				<label for="edit-menu-item-title-<?php echo esc_attr( $item_id ); ?>">
					<?php esc_html_e( 'Navigation Label', 'glaza' ); ?><br/>
					<input type="text" id="edit-menu-item-title-<?php echo esc_attr( $item_id ); ?>" class="widefat edit-menu-item-title" name="menu-item-title[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( $item->title ); ?>"/>
				</label>
			</p>
			<p class="description description-thin">
				<label for="edit-menu-item-attr-title-<?php echo esc_attr( $item_id ); ?>">
					<?php esc_html_e( 'Title Attribute', 'glaza' ); ?><br/>
					<input type="text" id="edit-menu-item-attr-title-<?php echo esc_attr( $item_id ); ?>" class="widefat edit-menu-item-attr-title" name="menu-item-attr-title[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( $item->post_excerpt ); ?>"/>
				</label>
			</p>
			<p class="field-link-target description">
				<label for="edit-menu-item-target-<?php echo esc_attr( $item_id ); ?>">
					<input type="checkbox" id="edit-menu-item-target-<?php echo esc_attr( $item_id ); ?>" value="_blank" name="menu-item-target[<?php echo esc_attr( $item_id ); ?>]"<?php checked( $item->target, '_blank' ); ?> />
					<?php esc_html_e( 'Open link in a new window/tab', 'glaza' ); ?>
				</label>
			</p>

			<p class="field-css-classes description description-thin">
				<label for="edit-menu-item-classes-<?php echo esc_attr( $item_id ); ?>">
					<?php esc_html_e( 'CSS Classes (optional)', 'glaza' ); ?><br/>
					<input type="text" id="edit-menu-item-classes-<?php echo esc_attr( $item_id ); ?>" class="widefat code edit-menu-item-classes" name="menu-item-classes[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( implode( ' ', $item->classes ) ); ?>"/>
				</label>
			</p>

			<p class="field-xfn description description-thin">
				<label for="edit-menu-item-xfn-<?php echo esc_attr( $item_id ); ?>">
					<?php esc_html_e( 'Link Relationship (XFN)', 'glaza' ); ?><br/>
					<input type="text" id="edit-menu-item-xfn-<?php echo esc_attr( $item_id ); ?>" class="widefat code edit-menu-item-xfn" name="menu-item-xfn[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( $item->xfn ); ?>"/>
				</label>
			</p>

			<!--# category mega menu -->
			<?php if ( 0 == $depth && ( ( $item->object == 'category' ) ) ) :?>
				<p class="field-ruby-mega description description-wide">
					<label class="ruby-meta-menu-label" for="edit-menu-item-glaza-ruby-mega-cat-<?php echo esc_attr( $item_id ); ?>"><?php esc_html_e( 'Category Mega Menu: ', 'glaza' ); ?></label>
					<input type="checkbox" id="edit-menu-item-glaza-ruby-mega-cat-<?php echo esc_attr( $item_id ); ?>" name="menu-item-glaza-ruby-mega-cat[<?php echo esc_attr( $item_id ); ?>]" value="1" <?php checked( $glaza_item_mega_cat, 1 ); ?> />
					<span style="display: block; font-size: 12px; font-style: italic; margin-top: 5px; color: #aaa"><?php esc_html_e( 'Display the latest posts of this category', 'glaza' ); ?></span>
				</p>


				<p class="field-ruby-mega description description-wide">
					<label class="ruby-meta-menu-label" for="edit-menu-item-glaza-ruby-mega-cat-ajax-<?php echo esc_attr( $item_id ); ?>"><?php esc_html_e( 'Ajax pagination: ', 'glaza' ); ?></label>
					<input type="checkbox" id="edit-menu-item-glaza-ruby-mega-cat-ajax-<?php echo esc_attr( $item_id ); ?>" name="menu-item-glaza-ruby-mega-cat-ajax[<?php echo esc_attr( $item_id ); ?>]" value="1" <?php checked( $glaza_item_mega_cat_ajax, 1 ); ?> />
					<span style="display: block; font-size: 12px; font-style: italic; margin-top: 5px; color: #aaa"><?php esc_html_e( 'Enable ajax pagination for blog listing of this mega item', 'glaza' ); ?></span>
				</p>

			<?php endif; ?>

			<p class="field-description description description-wide">
				<label for="edit-menu-item-description-<?php echo esc_attr( $item_id ); ?>">
					<?php esc_html_e( 'Description', 'glaza' ); ?><br/>
					<textarea id="edit-menu-item-description-<?php echo esc_attr( $item_id ); ?>" class="widefat edit-menu-item-description" rows="3" cols="20" name="menu-item-description[<?php echo esc_attr( $item_id ); ?>]">
						<?php echo esc_html( $item->description ); ?></textarea>
					<span class="description"><?php esc_html_e( 'The description will be displayed in the menu if the current theme supports it.', 'glaza' ); ?></span>
				</label>
			</p>

			<p class="field-move hide-if-no-js description description-wide">
				<label>
					<span><?php esc_html_e( 'Move', 'glaza' ); ?></span>
					<a href="#" class="menus-move-up"><?php esc_html_e( 'Up one', 'glaza' ); ?></a>
					<a href="#" class="menus-move-down"><?php esc_html_e( 'Down one', 'glaza' ); ?></a>
					<a href="#" class="menus-move-left"></a>
					<a href="#" class="menus-move-right"></a>
					<a href="#" class="menus-move-top"><?php esc_html_e( 'To the top', 'glaza' ); ?></a>
				</label>
			</p>

			<div class="menu-item-actions description-wide submitbox">
				<?php if ( 'custom' != $item->type && $original_title !== false ) : ?>
					<p class="link-to-original">
						<?php printf( esc_html__( 'Original: %s', 'glaza' ), '<a href="' . esc_attr( $item->url ) . '">' . esc_html( $original_title ) . '</a>' ); ?>
					</p>
				<?php endif; ?>
				<a class="item-delete submitdelete deletion" id="delete-<?php echo esc_attr( $item_id ); ?>" href="<?php echo wp_nonce_url(add_query_arg( array('action'=> 'delete-menu-item','menu-item' => $item_id), admin_url( 'nav-menus.php' )),'delete-menu_item_' . $item_id); ?>"><?php esc_html_e( 'Remove', 'glaza' ); ?></a> <span class="meta-sep hide-if-no-js"> | </span>
				<a class="item-cancel submitcancel hide-if-no-js" id="cancel-<?php echo esc_attr( $item_id ); ?>"href="<?php echo esc_url( add_query_arg( array('edit-menu-item' => $item_id, 'cancel'=> time()), admin_url( 'nav-menus.php' ) ) );?>#menu-item-settings-<?php echo esc_attr( $item_id ); ?>"><?php esc_html_e( 'Cancel', 'glaza' ); ?></a>
			</div>

			<input class="menu-item-data-db-id" type="hidden" name="menu-item-db-id[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( $item_id ); ?>"/>
			<input class="menu-item-data-object-id" type="hidden" name="menu-item-object-id[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( $item->object_id ); ?>"/>
			<input class="menu-item-data-object" type="hidden" name="menu-item-object[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( $item->object ); ?>"/>
			<input class="menu-item-data-parent-id" type="hidden" name="menu-item-parent-id[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( $item->menu_item_parent ); ?>"/>
			<input class="menu-item-data-position" type="hidden" name="menu-item-position[<?php echo esc_attr( $item_id ); ?>]" value="<?php echo esc_attr( $item->menu_order ); ?>"/>
			<input class="menu-item-data-type" type="hidden" name="menu-item-type[<?php echo esc_attr( $item_id ); ?>]"  value="<?php echo esc_attr( $item->type ); ?>"/>
		</div>
		<!-- .menu-item-settings-->
		<ul class="menu-item-transport"></ul>
		<?php
		$output .= ob_get_clean();
	}
}


if ( ! function_exists( 'glaza_megamenu_walker' ) ) {
	function glaza_megamenu_walker( $walker ) {
		if ( $walker === 'Walker_Nav_Menu_Edit' ) {
			$walker = 'glaza_walker_backend';
		}

		return $walker;
	}

	add_filter( 'wp_edit_nav_menu_walker', 'glaza_megamenu_walker' );
}


if ( ! function_exists( 'glaza_mega_walker_save' ) ) {
	function glaza_mega_walker_save( $menu_id, $menu_item_db_id ) {

		//category menu
		if ( isset( $_POST['menu-item-glaza-ruby-mega-cat'][ $menu_item_db_id ] ) ) {
			update_post_meta( $menu_item_db_id, '_menu_item_glaza_mega_cat', esc_attr($_POST['menu-item-glaza-ruby-mega-cat'][ $menu_item_db_id ]) );
		} else {
			update_post_meta( $menu_item_db_id, '_menu_item_glaza_mega_cat', '0' );
		}

		//ajax menu
		if ( isset( $_POST['menu-item-glaza-ruby-mega-cat-ajax'][ $menu_item_db_id ] ) ) {
			update_post_meta( $menu_item_db_id, '_menu_item_glaza_mega_cat_ajax', esc_attr($_POST['menu-item-glaza-ruby-mega-cat-ajax'][ $menu_item_db_id ]) );
		} else {
			update_post_meta( $menu_item_db_id, '_menu_item_glaza_mega_cat_ajax', '0' );
		}
	}

	add_action( 'wp_update_nav_menu_item', 'glaza_mega_walker_save', 10, 2 );
}



if ( ! function_exists( 'glaza_mega_walker_loader' ) ) {
	function glaza_mega_walker_loader( $menu_item ) {
		$menu_item->glaza_mega_cat      = get_post_meta( $menu_item->ID, '_menu_item_glaza_mega_cat', true );
		$menu_item->glaza_mega_cat_ajax = get_post_meta( $menu_item->ID, '_menu_item_glaza_mega_cat_ajax', true );

		return $menu_item;
	}
}
add_filter( 'wp_setup_nav_menu_item', 'glaza_mega_walker_loader' );


/**
 * front-end mega menu
 */
class glaza_walker extends Walker_Nav_Menu {

	/**
	 * @param string $item_output
	 * @param object $item
	 * @param int $depth
	 * @param array $args
	 * @param int $id
	 * start el
	 */
	public function start_el( &$item_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;
		$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth ) );

		$enable_mega_cat    = $item->glaza_mega_cat;

		//add ajax filter to sub menu
		$data_ajax_filter = '';
		if ( 1 == $depth && ( 'category' == $item->object ) ) {
			if ( ! empty( $item->menu_item_parent ) ) {
				$parent_id              = $item->menu_item_parent;
				$enable_mega_cat_parent = get_post_meta( $parent_id, '_menu_item_glaza_mega_cat', true );
				if(!empty($enable_mega_cat_parent)){
					$data_ajax_filter       = ' ' . 'data-mega_sub_filter=' . '"' . esc_attr($item->object_id) . '"' . ' ';
				}
			};
		}

		//add class
		if ( ( 1 == $enable_mega_cat ) && ( 0 == $item->menu_item_parent ) ) {
			$class_names .= ' is-cat-mega-menu is-mega-menu';
		}

		$args        = apply_filters( 'nav_menu_item_args', $args, $item, $depth );
		$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';


		$id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth );
		$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';

		$item_output .= $indent . '<li' . $id . $class_names . $data_ajax_filter . '>';

		$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 : '';

		$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 . '"';
			}
		}

		/** This filter is documented in wp-includes/post-template.php */
		$title = apply_filters( 'the_title', $item->title, $item->ID );
		$title = apply_filters( 'nav_menu_item_title', $title, $item, $args, $depth );

		if ( ! empty( $args->before ) ) {
			$item_output = $args->before;
		}

		$item_output .= '<a' . $attributes . '>';
		$item_output .= $args->link_before . $title . $args->link_after;
		$item_output .= '</a>';
		$item_output .= $args->after;

		if ( ( 'category' == $item->object ) && ( 1 == $enable_mega_cat ) && ( 0 == $item->menu_item_parent ) ) {
			$item_output .= '<div class="mega-category-menu mega-menu-wrap sub-menu container">';
			$item_output .= '<div class="mega-category-menu-inner">';

		}
	}

	/**
	 * @param string $item_output
	 * @param object $item
	 * @param int $depth
	 * @param array $args
	 * end el
	 */
	public function end_el( &$item_output, $item, $depth = 0, $args = array() ) {

		$enable_mega_cat      = $item->glaza_mega_cat;
		$enable_mega_cat_ajax = $item->glaza_mega_cat_ajax;
		$current_classes      = $item->classes;

		$item_has_children = false;
		if ( is_array( $current_classes ) ) {
			if ( in_array( 'menu-item-has-children', $current_classes ) ) {
				$item_has_children = true;
			}
		}

		//render category
		if ( ( 'category' == $item->object ) && ( 1 == $enable_mega_cat ) && ( 0 == $item->menu_item_parent ) ) {

			$settings              = array();
			$settings ['category'] = $item->object_id;
			$settings['block_id']  = 'mega-cat-' . esc_attr( $item->ID );
			if ( ! empty( $enable_mega_cat_ajax ) ) {
				$settings['pagination'] = 'next_prev';
			}
			if ( false === $item_has_children ) {
				$settings['posts_per_page'] = 5;
				$settings['post_columns']   = 5;
			} else {
				$settings['posts_per_page'] = 4;
				$settings['post_columns']   = 4;
			}

			ob_start();
			glaza_mega_menu( $settings );
			$item_output .= ob_get_clean();
		};

		if ( ( 0 == $item->menu_item_parent ) && ( ( 1 == $enable_mega_cat )  ) ) {
			$item_output .= '</div></div>';
		}

		$item_output .= '</li>';
	}


	/**
	 * @param string $item_output
	 * @param int $depth
	 * @param array $args
	 * start lvl
	 */
	function start_lvl( &$item_output, $depth = 0, $args = array() ) {
		$indent = str_repeat( "\t", $depth );
		if ( $depth == 0 ) {
			$item_output .= $indent . '<ul class="sub-menu is-sub-default">';
		} else {
			$item_output .= $indent . '<ul class="sub-sub-menu sub-menu">';
		}
	}

	/**
	 * @param string $item_output
	 * @param int $depth
	 * @param array $args
	 * end lvl
	 */
	function end_lvl( &$output, $depth = 0, $args = array() ) {
		$indent = str_repeat( "\t", $depth );
		$output .= $indent . '</ul>';
	}
}

/**
 * fallback navigation
 */
if ( ! function_exists( 'glaza_navigation_fallback' ) ) {
	function glaza_navigation_fallback() {

		echo '<div class="data-error">';
		echo '<p>' . esc_html__( 'Please assign a menu to the primary menu location under ', 'glaza' ) . '<a href="' . get_admin_url( get_current_blog_id(), 'nav-menus.php' ) . '">' . esc_html__( 'menu', 'glaza' ) . '</a>' . '</p>';
		echo '</div>';
	}
}