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<?php
/**
 * Class description
 *
 * @package   package_name
 * @author    Cherry Team
 * @license   GPL-2.0+
 */

// If this file is called directly, abort.
if ( ! defined( 'WPINC' ) ) {
	die;
}

if ( ! class_exists( 'Jet_Engine_Img_Gallery' ) ) {

/**
	 * Define Jet_Engine_Img_Gallery class
	 */
	class Jet_Engine_Img_Gallery {

/**
		 * Render images gallery as slider
		 *
		 * @param  array  $images [description]
		 * @param  array  $args   [description]
		 * @return [type]         [description]
		 */
		public static function slider( $images = array(), $args = array() ) {

if ( empty( $images ) ) {
				return '';
			}

wp_enqueue_script( 'jquery-slick' );
			wp_enqueue_script( 'imagesloaded' );
			wp_enqueue_script( 'jet-engine-frontend' );

$args = wp_parse_args( $args, array(
				'size'             => 'full',
				'lightbox'         => false,
				'slides_to_show'   => 1,
				'slides_to_show_t' => false,
				'slides_to_show_m' => false,
			) );

$slider_atts =  array(
				'slidesToShow'   => $args['slides_to_show'],
				'dots'           => false,
				'slidesToScroll' => 1,
				'adaptiveHeight' => true,
				'prevArrow'      => '<i class="fa fa-angle-left prev-arrow jet-engine-arrow"></i>',
				'nextArrow'      => '<i class="fa fa-angle-right next-arrow jet-engine-arrow"></i>',
				'rtl'            => is_rtl(),
			);

$mobile_settings = apply_filters( 'jet-engine/gallery/slider/mobile-settings', array(
				'slides_to_show_t' => 1025,
				'slides_to_show_m' => 768,
			) );

foreach ( $mobile_settings as $key => $breakpoint ) {

if ( ! empty( $args[ $key ] ) ) {

if ( ! isset( $slider_atts['responsive'] ) ) {
						$slider_atts['responsive'] = array();
					}

$slider_atts['responsive'][] = array(
						'breakpoint' => $breakpoint,
						'settings'   => array(
							'slidesToShow' => $args[ $key ],
						),
					);

}
			}

$slider_atts = apply_filters( 'jet-engine/gallery/slider/atts', $slider_atts );
			$slider_atts = htmlspecialchars( json_encode( $slider_atts ) );

echo '<div class="jet-engine-gallery-slider" data-atts="' . $slider_atts . '">';

$gallery_id = self::get_gallery_id();

foreach ( $images as $img_id ) {

$img_data = self::get_img_data( $img_id, $args );
				$img_url  = $img_data['url'];
				$img_full = $img_data['full'];

echo '<div class="jet-engine-gallery-slider__item">';

if ( $args['lightbox'] ) {
					echo '<a href="' . $img_full . '" class="jet-engine-gallery-slider__item-wrap jet-engine-gallery-item-wrap is-lightbox" data-elementor-open-lightbox="yes" data-elementor-lightbox-slideshow="' . $gallery_id . '">';
				} else {
					echo '<span class="jet-engine-gallery-slider__item-wrap jet-engine-gallery-item-wrap">';
				}

$alt = get_post_meta( $img_id, '_wp_attachment_image_alt', true );

echo '<img src="' . $img_url . '" alt="' . $alt . '" class="jet-engine-gallery-slider__item-img">';

if ( $args['lightbox'] ) {
					echo '</a>';
				} else {
					echo '</span>';
				}

echo '</div>';

}

echo '</div>';

}

/**
		 * Render images gallery as grid
		 *
		 * @param  array   $images   [description]
		 * @param  string  $size     [description]
		 * @param  boolean $lightbox [description]
		 * @return string
		 */
		public static function grid( $images = array(), $args = array() ) {

if ( empty( $images ) ) {
				return '';
			}

$args = wp_parse_args( $args, array(
				'size'        => 'full',
				'lightbox'    => false,
				'cols_desk'   => 3,
				'cols_tablet' => 3,
				'cols_mobile' => 1,
			) );

ob_start();

$classes = array(
				'grid-col-desk-' . $args['cols_desk'],
				'grid-col-tablet-' . $args['cols_tablet'],
				'grid-col-mobile-' . $args['cols_mobile'],
			);
			$classes = sprintf( ' %s', implode( ' ', $classes ) );

echo '<div class="jet-engine-gallery-grid' . $classes . '">';

$gallery_id = self::get_gallery_id();

foreach ( $images as $img_id ) {

$img_data = self::get_img_data( $img_id, $args );
				$img_url  = $img_data['url'];
				$img_full = $img_data['full'];

echo '<div class="jet-engine-gallery-grid__item">';

if ( $args['lightbox'] ) {
					echo '<a href="' . $img_full . '" class="jet-engine-gallery-grid__item-wrap jet-engine-gallery-item-wrap is-lightbox" data-elementor-open-lightbox="yes" data-elementor-lightbox-slideshow="' . $gallery_id . '">';
				} else {
					echo '<span class="jet-engine-gallery-grid__item-wrap jet-engine-gallery-item-wrap">';
				}

$alt = get_post_meta( $img_id, '_wp_attachment_image_alt', true );

echo '<img src="' . $img_url . '" alt="' . $alt . '" class="jet-engine-gallery-grid__item-img">';

if ( $args['lightbox'] ) {
					echo '</a>';
				} else {
					echo '</span>';
				}

echo '</div>';

}

echo '</div>';

return ob_get_clean();

}

public static function get_img_data( $img_id = null, $args = array() ) {

$result = array();

if ( is_numeric( $img_id ) ) {
				if ( 'full' === $args['size'] ) {
					$result['url'] = $result['full'] = wp_get_attachment_image_url( $img_id, $args['size'] );
				} else {
					$result['url']  = wp_get_attachment_image_url( $img_id, $args['size'] );
					$result['full'] = wp_get_attachment_image_url( $img_id, 'full' );
				}
			} elseif ( is_array( $img_id ) ) {
				$result['url']  = wp_get_attachment_image_url( $img_id['id'], $args['size'] );
				$result['full'] = $img_id['url'];
			} else {
				$result['url'] = $result['full'] = $img_id;
			}

return $result;

}

/**
		 * Returns random ID for gallery
		 *
		 * @return [type] [description]
		 */
		public static function get_gallery_id() {
			return 'gallery_' . rand( 1000, 9999 );
		}

}