<?php
/**
 * Shortcode for Gallery element.
 *
 * @package woodmart
 */

if ( ! defined( 'WOODMART_THEME_DIR' ) ) {
	exit( 'No direct script access allowed' );
}


if ( ! function_exists( 'woodmart_gallery_shortcode' ) ) {
	/**
	 * Gallery shortcode.
	 *
	 * @param array $attr Shortcode attributes.
	 *
	 * @return false|string
	 */
	function woodmart_gallery_shortcode( $attr ) {
		$post = get_post();

		static $instance = 0;
		++$instance;

		if ( ! empty( $attr['ids'] ) ) {
			// 'ids' is explicitly ordered, unless you specify otherwise.
			if ( empty( $attr['orderby'] ) ) {
				$attr['orderby'] = 'post__in';
			}
			$attr['include'] = $attr['ids'];
		}

		/**
		 * Filter the default gallery shortcode output.
		 *
		 * If the filtered output isn't empty, it will be used instead of generating
		 * the default gallery template.
		 *
		 * @since 2.5.0
		 *
		 * @see gallery_shortcode()
		 *
		 * @param string $output The gallery output. Default empty.
		 * @param array  $attr   Attributes of the gallery shortcode.
		 */
		$output = apply_filters( 'post_gallery', '', $attr );
		if ( '' !== $output ) {
			return $output;
		}

		$html5 = current_theme_supports( 'html5', 'gallery' );
		$atts  = shortcode_atts(
			array(
				'order'      => 'ASC',
				'orderby'    => 'menu_order ID',
				'id'         => $post ? $post->ID : 0,
				'itemtag'    => $html5 ? 'figure' : 'dl',
				'icontag'    => $html5 ? 'div' : 'dt',
				'captiontag' => $html5 ? 'figcaption' : 'dd',
				'columns'    => 3,
				'size'       => 'thumbnail',
				'include'    => '',
				'exclude'    => '',
				'link'       => '',
			),
			$attr,
			'gallery'
		);

		$atts['link'] = 'file';

		$id = intval( $atts['id'] );

		if ( ! empty( $atts['include'] ) ) {
			$_attachments = get_posts(
				array(
					'include'        => $atts['include'],
					'post_status'    => 'inherit',
					'post_type'      => 'attachment',
					'post_mime_type' => 'image',
					'order'          => $atts['order'],
					'orderby'        => $atts['orderby'],
				)
			);

			$attachments = array();
			foreach ( $_attachments as $key => $val ) {
				$attachments[ $val->ID ] = $_attachments[ $key ];
			}
		} elseif ( ! empty( $atts['exclude'] ) ) {
			$attachments = get_children(
				array(
					'post_parent'    => $id,
					'exclude'        => $atts['exclude'],
					'post_status'    => 'inherit',
					'post_type'      => 'attachment',
					'post_mime_type' => 'image',
					'order'          => $atts['order'],
					'orderby'        => $atts['orderby'],
				)
			);
		} else {
			$attachments = get_children(
				array(
					'post_parent'    => $id,
					'post_status'    => 'inherit',
					'post_type'      => 'attachment',
					'post_mime_type' => 'image',
					'order'          => $atts['order'],
					'orderby'        => $atts['orderby'],
				)
			);
		}

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

		if ( is_feed() ) {
			$output = "\n";
			foreach ( $attachments as $att_id => $attachment ) {
				$output .= wp_get_attachment_link( $att_id, $atts['size'], true ) . "\n";
			}
			return $output;
		}

		$itemtag    = tag_escape( $atts['itemtag'] );
		$captiontag = tag_escape( $atts['captiontag'] );
		$icontag    = tag_escape( $atts['icontag'] );
		$valid_tags = wp_kses_allowed_html( 'post' );
		if ( ! isset( $valid_tags[ $itemtag ] ) ) {
			$itemtag = 'dl';
		}
		if ( ! isset( $valid_tags[ $captiontag ] ) ) {
			$captiontag = 'dd';
		}
		if ( ! isset( $valid_tags[ $icontag ] ) ) {
			$icontag = 'dt';
		}

		$columns   = intval( $atts['columns'] );
		$itemwidth = $columns > 0 ? floor( 100 / $columns ) : 100;
		$float     = is_rtl() ? 'right' : 'left';

		$selector = "gallery-{$instance}";

		$gallery_style = '';

		/**
		 * Filter whether to print default gallery styles.
		 *
		 * @since 3.1.0
		 *
		 * @param bool $print Whether to print default gallery styles.
		 *                    Defaults to false if the theme supports HTML5 galleries.
		 *                    Otherwise, defaults to true.
		 */
		if ( apply_filters( 'use_default_gallery_style', ! $html5 ) ) {
			$gallery_style = "
			<style>
				#{$selector} {
					margin: auto;
				}
				#{$selector} .gallery-item {
					float: {$float};
					margin-top: 10px;
					text-align: center;
					width: {$itemwidth}%;
				}
				#{$selector} img {
					max-width:100%;
				}
				#{$selector} .gallery-caption {
					margin-left: 0;
				}
			</style>\n\t\t";
		}

		$size_class  = sanitize_html_class( $atts['size'] );
		$gallery_div = "<div id='$selector' class='gallery galleryid-{$id} wd-justified-gallery gallery-columns-{$columns} gallery-size-{$size_class}'>";

		/**
		 * Filter the default gallery shortcode CSS styles.
		 *
		 * @since 2.5.0
		 *
		 * @param string $gallery_style Default CSS styles and opening HTML div container
		 *                              for the gallery shortcode output.
		 */
		$output = apply_filters( 'gallery_style', $gallery_style . $gallery_div );

		$rows_width     = array();
		$thumbs_heights = array();

		foreach ( $attachments as $id => $attachment ) {
			$attr = ( trim( $attachment->post_excerpt ) ) ? array( 'aria-describedby' => "$selector-$id" ) : '';
			if ( ! empty( $atts['link'] ) && 'file' === $atts['link'] ) {
				$image_output = wp_get_attachment_link( $id, $atts['size'], false, false, false, $attr );
			} elseif ( ! empty( $atts['link'] ) && 'none' === $atts['link'] ) {
				$image_output = wp_get_attachment_image( $id, $atts['size'], false, $attr );
			} else {
				$image_output = wp_get_attachment_link( $id, $atts['size'], true, false, false, $attr );
			}
			$image_meta = wp_get_attachment_metadata( $id );

			$orientation = '';
			if ( isset( $image_meta['height'], $image_meta['width'] ) ) {
				$orientation = ( $image_meta['height'] > $image_meta['width'] ) ? 'portrait' : 'landscape';
			}

			$output .= "
					$image_output";
			if ( false && $captiontag && trim( $attachment->post_excerpt ) ) {
				$output .= "
					<{$captiontag} class='wp-caption-text gallery-caption' id='$selector-$id'>
					" . wptexturize( $attachment->post_excerpt ) . "
					</{$captiontag}>";
			}

			$thumb = wp_get_attachment_image_src( $id, $atts['size'] );

			$thumbs_heights[] = $thumb[2];
		}

		ob_start();

		$row_height     = 250;
		$max_row_height = min( $thumbs_heights );

		if ( $max_row_height < $row_height ) {
			$row_height = $max_row_height;
		}

		woodmart_enqueue_js_library( 'justified' );
		woodmart_enqueue_inline_style( 'justified' );

		wp_add_inline_script(
			'woodmart-theme',
			'jQuery( document ).ready(function() {
		jQuery("#' . esc_js( $selector ) . '").justifiedGallery({
			rowHeight: ' . esc_js( $row_height ) . ',
			maxRowHeight: ' . esc_js( $max_row_height ) . ',
			margins: 1,
			cssAnimation: true,
		});
	});',
			'after'
		);

		$output .= ob_get_clean();

		$output .= "
			</div>\n";

		return $output;
	}
}
