<?php
/**
 * Initializes an addional featured image for use in backend and frontend.
 *
 * @author     ThemeFusion
 * @copyright  (c) Copyright by ThemeFusion
 * @link       http://theme-fusion.com
 * @package    Fusion-Library
 * @since      1.1
 */

/**
 * Handles additional featured images.
 *
 * @since 1.1
 */
class Fusion_Featured_Image {

	/**
	 * The class arguments.
	 *
	 * @since 1.1
	 * @access private
	 * @var array
	 */
	private $args = array();

	/**
	 * The class defaults.
	 *
	 * @since 1.1
	 * @access private
	 * @var array
	 */
	private $defaults = array();

	/**
	 * Constructor.
	 *
	 * @since 1.1
	 * @access public
	 * @param array $args The arguments.
	 * @return void
	 */
	public function __construct( $args ) {

		$this->defaults = array(
			'id'           => 'featured-image-2',
			'post_type'    => 'page',
			'name'         => esc_attr__( 'Featured Image 2', 'fusion-builder' ),
			'label_set'    => esc_attr__( 'Set featured image 2', 'fusion-builder' ),
			'label_remove' => esc_attr__( 'Remove featured image 2', 'fusion-builder' ),
		);

		$this->args                  = wp_parse_args( $args, $this->defaults );
		$this->args['metabox_id']    = $this->args['id'] . '_' . $this->args['post_type'];
		$this->args['post_meta_key'] = 'kd_' . $this->args['metabox_id'] . '_id';
		$this->args['nonce_action']  = $this->args['metabox_id'] . '_nonce_action';
		$this->args['nonce_name']    = $this->args['metabox_id'] . '_nonce_name';

		add_action( 'add_meta_boxes', array( $this, 'add_meta_box' ) );
		add_action( 'save_post', array( $this, 'save_meta_box' ) );

		add_action( 'init', array( $this, 'init_info_meta_box' ) );

	}
	/**
	 * Init admin metabox for an features images info.
	 *
	 * @since 5.2.1
	 * @access public
	 * @return void
	 */
	public function init_info_meta_box() {
		add_action( 'add_meta_boxes', array( $this, 'add_meta_box_info' ) );
	}

	/**
	 * Add admin metabox for an additional featured image.
	 *
	 * @since 1.1
	 * @access public
	 * @return void
	 */
	public function add_meta_box() {
		add_meta_box(
			$this->args['metabox_id'],
			$this->args['name'],
			array( $this, 'meta_box_content' ),
			$this->args['post_type'],
			'side',
			'low'
		);
	}

	/**
	 * Add admin metabox for an additional featured images info.
	 *
	 * @since 5.2.1
	 * @access public
	 * @return void
	 */
	public function add_meta_box_info() {
		add_meta_box(
			'fusion_featured_images_info',
			__( 'Featured images Info', 'fusion-builder' ),
			array( $this, 'meta_box_info_content' ),
			$this->args['post_type'],
			'side',
			'low'
		);
	}

	/**
	 * Output the metabox content.
	 *
	 * @since 1.1
	 * @access public
	 * @global object $post
	 * @return void
	 */
	public function meta_box_content() {
		global $post;

		$image_id = get_post_meta(
			$post->ID,
			$this->args['post_meta_key'],
			true
		);

		$output = '';
		$preview_image_css = ' style="display:none;"';
		$remove_image_css  = $preview_image_css;

		if ( $image_id ) {
			$preview_image = wp_get_attachment_image( $image_id, array( 266, 266 ), false, array(
				'class' => 'fusion-preview-image',
			) );
			$remove_image_css = '';
		} else {
			$preview_image = '<img class="fusion-preview-image" src="">';
			$preview_image_css = '';
		}

		$preview_image = '<span class="fusion-set-featured-image"' . $preview_image_css . '>' . $this->args['label_set'] . '</span>' . $preview_image;

		$set_image_link = '<p class="hide-if-no-js">';
			$set_image_link .= '<a aria-label="' . $this->args['label_set'] . '" href="#" id="' . $this->args['id'] . '" class="fusion_upload_button">';
				$set_image_link .= $preview_image;
			$set_image_link .= '</a>';
			$set_image_link .= '<input class="upload_field" id="' . $this->args['post_meta_key'] . '" name="' . $this->args['post_meta_key'] . '" value="' . $image_id . '" type="hidden">';
		$set_image_link .= '</p>';

		$remove_image_link = '<p class="hide-if-no-js fusion-remove-featured-image"' . $remove_image_css . '>';
			$remove_image_link .= '<a aria-label="' . $this->args['label_remove'] . '" href="#" id="' . $this->args['id'] . '" class="fusion-remove-image">' . $this->args['label_remove'] . '</a>';
		$remove_image_link .= '</p>';

		$nonce_field = wp_nonce_field( $this->args['nonce_action'], $this->args['nonce_name'], true, false );

		$output = '<div class="fusion-featured-image-meta-box">' . $set_image_link . $remove_image_link . $nonce_field . '</div>';

		echo $output; // WPCS: XSS ok.
	}

	/**
	 * Output the metabox info content.
	 *
	 * @since 5.2.1
	 * @access public
	 * @global object $post
	 * @return void
	 */
	public function meta_box_info_content() {
		/* translators: The "Fusion Theme Options" link. */
		echo sprintf( esc_attr__( 'To control the amount of featured image boxes, visit %s.', 'fusion-builder' ), '<a href="' . esc_url_raw( admin_url( 'themes.php?page=avada_options#posts_slideshow_number' ) ) . '" target="_blank" rel="noopener noreferrer">' . esc_attr__( 'Fusion Theme Options', 'fusion-builder' ) . '</a>' );
	}

	/**
	 * Saves the metabox.
	 *
	 * @since 1.1
	 * @access public
	 * @param string|int $post_id The post ID.
	 * @return void.
	 */
	public function save_meta_box( $post_id ) {
		// @codingStandardsIgnoreLine
		if ( ! isset( $_POST[ $this->args['nonce_name'] ] ) || ! wp_verify_nonce( $_POST[ $this->args['nonce_name'] ], $this->args['nonce_action'] ) ) {
				return;
		}

		if ( ! current_user_can( 'edit_post', $post_id ) ) {
				return;
		}

		$value = '';
		if ( isset( $_POST ) && isset( $_POST[ $this->args['post_meta_key'] ] ) ) {
			$value = sanitize_text_field( wp_unslash( $_POST[ $this->args['post_meta_key'] ] ) );
		}
		update_post_meta( $post_id, $this->args['post_meta_key'], $value );
	}

	/**
	 * Retrieve the ID of the featured image.
	 *
	 * @since 1.1
	 * @static
	 * @access public
	 * @global object $post
	 * @param string $image_id Internal ID of the featured image.
	 * @param string $post_type The post type of the post the featured image belongs to.
	 * @param int    $post_id A custom post ID.
	 * @return int The featured image ID.
	 */
	public static function get_featured_image_id( $image_id, $post_type, $post_id = null ) {
		global $post;

		if ( is_null( $post_id ) ) {
			$post_id = get_the_ID();
		}

		return get_post_meta( $post_id, 'kd_' . $image_id . '_' . $post_type . '_id', true );
	}
}

/* Omit closing PHP tag to avoid "Headers already sent" issues. */
