<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

/**
 * Scripts
 *
 * @since 1.0
 */
function easy_image_gallery_scripts() {

	global $post;

	// return if post object is not set
	if ( ! isset( $post->ID ) ) {
		return;
	}

	// JS
	wp_register_script( 'pretty-photo', EASY_IMAGE_GALLERY_URL . 'includes/lib/prettyphoto/jquery.prettyPhoto.js', array( 'jquery' ), EASY_IMAGE_GALLERY_VERSION, true );
	wp_register_script( 'fancybox', EASY_IMAGE_GALLERY_URL . 'includes/lib/fancybox/jquery.fancybox.min.js', array( 'jquery' ), EASY_IMAGE_GALLERY_VERSION, true );
	wp_register_script( 'luminous', EASY_IMAGE_GALLERY_URL . 'includes/lib/luminous/dist/Luminous.min.js', array( 'jquery' ), EASY_IMAGE_GALLERY_VERSION, false );

	// CSS
	wp_register_style( 'pretty-photo', EASY_IMAGE_GALLERY_URL . 'includes/lib/prettyphoto/prettyPhoto.css', '', EASY_IMAGE_GALLERY_VERSION, 'screen' );
	wp_register_style( 'fancybox', EASY_IMAGE_GALLERY_URL . 'includes/lib/fancybox/jquery.fancybox.min.css', '', EASY_IMAGE_GALLERY_VERSION, 'screen' );

	// create a new 'css/easy-image-gallery.css' in your child theme to override CSS file completely
	if ( file_exists( get_stylesheet_directory() . '/css/easy-image-gallery.css' ) ) {
		wp_register_style( 'easy-image-gallery', get_stylesheet_directory_uri() . '/css/easy-image-gallery.css', '', EASY_IMAGE_GALLERY_VERSION, 'screen' );
	} else {
		wp_register_style( 'easy-image-gallery', EASY_IMAGE_GALLERY_URL . 'includes/css/easy-image-gallery.css', '', EASY_IMAGE_GALLERY_VERSION, 'screen' );
	}

	// post type is not allowed, return
	if ( ! easy_image_gallery_allowed_post_type() ) {
		return;
	}

	// needs to load only when there is a gallery
	if ( easy_image_gallery_is_gallery() ) {
		wp_enqueue_style( 'easy-image-gallery' );
	}

	$linked_images       = true;
	$gutenberg_galleries = easy_image_gallery_if_gutenberg_block();
	$known_lightboxes    = array( 'pretty-photo', 'fancybox', 'luminous' );

	if ( ! empty( $gutenberg_galleries ) ) {
		foreach ( $gutenberg_galleries as $value ) {
			if ( ! in_array( $value, $known_lightboxes, true ) ) {
				continue;
			}

			if ( 'luminous' !== $value ) {
				wp_enqueue_style( $value );
			}

			wp_enqueue_script( $value );
		}
	}

	// only load the JS if gallery images are linked or the featured image is linked
	if ( $linked_images ) {

		$lightbox = easy_image_gallery_get_lightbox();

		// Scripts that we need to remove for proper plugin functionality
		wp_dequeue_script( 'magnific-popup' ); // OceanWP theme
		wp_dequeue_script( 'oceanwp-lightbox' ); // OceanWP theme

		switch ( $lightbox ) {

			case 'prettyphoto':
				// CSS
				wp_enqueue_style( 'pretty-photo' );

				// JS
				wp_enqueue_script( 'pretty-photo' );

				break;

			case 'fancybox':
				// CSS
				wp_enqueue_style( 'fancybox' );

				// JS
				wp_enqueue_script( 'fancybox' );

				break;

			case 'luminous':
				// JS
				wp_enqueue_script( 'luminous' );

				break;

			default:
				break;
		}

		// allow developers to load their own scripts here
		do_action( 'easy_image_gallery_scripts' );

	}

}
add_action( 'wp_enqueue_scripts', 'easy_image_gallery_scripts', 20 );

/**
 * Checking if we have the Easy Image Gallery Gutenberg block in the post content
 *
 * @since 1.4.0
 */
function easy_image_gallery_if_gutenberg_block() {
	global $post;

	if ( ! function_exists( 'has_blocks' ) ) {
		return false;
	}

	$arr_lightboxes = array();

	if ( has_blocks( $post->post_content ) ) {
		$blocks    = parse_blocks( $post->post_content );
		$arr_attrs = array_column( $blocks, 'attrs' );

		if ( in_array( 'devrix/easy-image-gallery-block', array_column( $blocks, 'blockName' ) ) ) {
			$arr_lightboxes = array_column( $arr_attrs, 'lightbox_option' );
		}
	}

	return array_unique( $arr_lightboxes );
}


/**
 * JS
 *
 * @since 1.0
 */
function easy_image_gallery_js() {

	if ( ! easy_image_gallery_allowed_post_type() ) {
		return;
	}

	//if ( is_singular() ) : ?>

		<?php

			$lightbox = easy_image_gallery_get_lightbox();

		switch ( $lightbox ) {

			case 'prettyphoto':
					ob_start();
				?>
					<script>
						jQuery(document).ready(function() {
							jQuery("a[rel^='prettyPhoto']").prettyPhoto({
								social_tools : false,
								show_title : false
							});
						});
					</script>
					<?php
					$js = ob_get_clean();
					$js = apply_filters( 'easy_image_gallery_prettyphoto_js', $js );
					if ( preg_match( '/<script\b[^>]*>(.*)<\/script>/is', $js, $matches ) ) {
						$js = $matches[1];
					}
					wp_print_inline_script_tag( trim( $js ) );
					?>

				<?php
				break;

			case 'fancybox':
					ob_start();
				?>
					<script>
						jQuery(document).ready(function() {

							jQuery("a.eig-popup:not([rel])").attr('rel', 'fancybox').fancybox({
								'transitionIn'	:	'elastic',
								'transitionOut'	:	'elastic',
								'speedIn'		:	200,
								'speedOut'		:	200,
								'overlayShow'	:	false
							});

						});
					</script>
					<?php
					$js = ob_get_clean();
					$js = apply_filters( 'easy_image_gallery_fancybox_js', $js );
					if ( preg_match( '/<script\b[^>]*>(.*)<\/script>/is', $js, $matches ) ) {
						$js = $matches[1];
					}
					wp_print_inline_script_tag( trim( $js ) );
					?>

				<?php
				break;

			default:
				break;
		}

			// allow developers to add/modify JS
			do_action( 'easy_image_gallery_js', $lightbox );
		?>

	<?php  //endif; ?>

	<?php
}
add_action( 'wp_footer', 'easy_image_gallery_js', 20 );


function easy_image_gallery_admin_scripts() {
	wp_enqueue_script(
		'repeatable-fields',
		EASY_IMAGE_GALLERY_URL . 'includes/lib/repeatable-fields.js',
		array( 'jquery', 'jquery-ui-core' ),
		EASY_IMAGE_GALLERY_VERSION,
		false
	);

	wp_enqueue_style(
		'easy_image_gallery_admin_css',
		EASY_IMAGE_GALLERY_URL . 'includes/css/easy-image-gallery-admin.css',
		array(),
		EASY_IMAGE_GALLERY_VERSION
	);
}

add_action( 'admin_enqueue_scripts', 'easy_image_gallery_admin_scripts' );