<?php defined( 'ABSPATH' ) OR die( 'This script cannot be accessed directly.' );

/**
 * Output Post Prev/Next navigation
 */

$prevnext = us_get_post_prevnext( $invert, $in_same_term, $taxonomy );

if ( empty( $prevnext ) ) {
	return;
}

$classes = ' layout_' . $layout;
$classes .= ( $invert ) ? ' inv_true' : ' inv_false';
if ( ! empty( $css ) AND function_exists( 'vc_shortcode_custom_css_class' ) ) {
	$classes .= ' ' . vc_shortcode_custom_css_class( $css );
}
$classes .= ( ! empty( $el_class ) ) ? ( ' ' . $el_class ) : '';
$el_id = ( ! empty( $el_id ) AND $us_elm_context == 'shortcode' ) ? ( ' id="' . esc_attr( $el_id ) . '"' ) : '';

// Output the element
$output = '<div class="w-post-elm post_navigation' . $classes . '"' . $el_id . '>';

$item_order = 'first';
foreach ( $prevnext as $key => $item ) {
	if ( ! empty( $prevnext[ $key ] ) ) {
		$tnail_id = get_post_thumbnail_id( $item['id'] );
		if ( $tnail_id ) {
			$image = wp_get_attachment_image( $tnail_id, 'thumbnail' );
		}
		if ( ! $tnail_id OR empty( $image ) ) {
			$image = '<div class="g-placeholder"></div>';
		}
		$output .= '<a class="post_navigation-item order_' . $item_order . ' to_' . $key . '" href="' . $item['link'] . '">';
		if ( $layout == 'sided' ) {
			$output .= '<div class="post_navigation-item-img">' . $image . '</div>';
		}
		$output .= '<div class="post_navigation-item-arrow"></div>';
		if ( $layout == 'simple' ) {
			$output .= '<div class="post_navigation-item-meta">' . $item['meta'] . '</div>';
		}
		$output .= '<div class="post_navigation-item-title"><span>' . $item['title'] . '</span></div>';
		$output .= '</a>';
	} else {
		$output .= '<div class="post_navigation-item order_' . $item_order . ' to_' . $key . '"></div>';
	}
	$item_order = 'second';
}

$output .= '</div>';

echo $output;