<?php
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

if ( ! is_admin() ) :
	if ( ! function_exists('grab_ids_from_gallery') ) :
		function grab_ids_from_gallery() {

			global $post;
			$attachment_ids = array();
			$pattern = get_shortcode_regex();
			$ids = array();

			if (have_posts()) :

			if (preg_match_all( '/'. $pattern .'/s', $post->post_content, $matches ) ) {   //finds the "gallery" shortcode and puts the image ids in an associative array at $matches[3]
				//$count = count($matches[3]); //in case there is more than one gallery in the post.
				$count = 1;
				for ($i = 0; $i < $count; $i++){
					$atts = shortcode_parse_atts( $matches[3][$i] );
					if ( isset( $atts['ids'] ) ){
						$attachment_ids = explode( ',', $atts['ids'] );
						$ids = array_merge($ids, $attachment_ids);
					}
				}
			}

			return $ids;

			endif;
		}
	endif;
	add_action( 'wp', 'grab_ids_from_gallery' );
endif;



if ( ! function_exists( 'shopkeeper_content_nav' ) ) :
function shopkeeper_content_nav( $nav_id ) {
	global $wp_query, $post;

	// Don't print empty markup on single pages if there's nowhere to navigate.
	if ( is_single() ) {
		$previous = ( is_attachment() ) ? get_post( $post->post_parent ) : get_adjacent_post( false, '', true );
		$next = get_adjacent_post( false, '', false );

		if ( ! $next && ! $previous )
			return;
	}

	// Don't print empty markup in archives if there's only one page.
	if ( $wp_query->max_num_pages < 2 && ( is_home() || is_archive() || is_search() ) )
		return;

	$nav_class = ( is_single() ) ? 'post-navigation' : 'paging-navigation';

	?>
	<nav role="navigation" id="<?php echo esc_attr( $nav_id ); ?>" class="<?php echo esc_attr( $nav_class ); ?>" aria-label="Content Navigation">

        <div class="row">

		<?php if ( is_single() ) : // navigation links for single posts ?>

        <div class="xlarge-8 large-10 x-large-centered large-centered columns without-sidebar">
            <div class="row">

                <div class="small-6 columns">
                	<div class="nav-previous"><?php previous_post_link( '%link', '<div class="nav-previous-title">'.esc_html__( "Previous Reading", "shopkeeper" ).'</div> <span> %title </span>' ); ?></div>
                </div><!-- .columns -->

                <div class="small-6 columns">
                	<div class="nav-next"><?php next_post_link( '%link', '<div class="nav-next-title">'.esc_html__( "Next Reading", "shopkeeper" ).'</div> <span> %title </span>' ); ?></div>
                </div><!-- .columns -->

            </div><!-- .row -->
        </div><!-- .columns .without-sidebar-->

		<?php elseif ( $wp_query->max_num_pages > 1 && ( is_home() || is_archive() || is_search() ) ) : // navigation links for home, archive, and search pages ?>

			<div class="small-6 columns">
                <?php if ( get_next_posts_link() ) : ?>
                <div class="nav-previous"><span class="meta-nav"><i class="fa fa-chevron-left"></i></span><span><?php next_posts_link( esc_html__( 'Older posts', 'shopkeeper' ) ); ?></span></div>
				<?php endif; ?>
			</div>

			<div class="small-6 columns">
                <?php if ( get_previous_posts_link() ) : ?>
                <div class="nav-next"><span><?php previous_posts_link( esc_html__( 'Newer posts', 'shopkeeper' ) ); ?></span><span class="meta-nav"><i class="fa fa-chevron-right"></i></span></div>
                <?php endif; ?>
			</div>

   		<?php endif; ?>

        </div><!-- .row -->

	</nav><!-- #<?php echo esc_html( $nav_id ); ?> -->
	<?php
}
endif; // shopkeeper_content_nav




if ( ! function_exists( 'shopkeeper_product_nav' ) ) :
function shopkeeper_product_nav( $nav_id ) {
	global $wp_query, $post;

	// Don't print empty markup on single pages if there's nowhere to navigate.
	if ( is_single() ) {
		$previous = ( is_attachment() ) ? get_post( $post->post_parent ) : get_adjacent_post( false, '', true );
		$next = get_adjacent_post( false, '', false );

		if ( ! $next && ! $previous )
			return;
	}

	// Don't print empty markup in archives if there's only one page.
	if ( $wp_query->max_num_pages < 2 && ( is_home() || is_archive() || is_search() ) )
		return;

	$nav_class = ( is_single() ) ? 'product-navigation' : 'paging-navigation';

	?>
	<nav role="navigation" id="<?php echo esc_attr( $nav_id ); ?>" class="<?php echo esc_attr( $nav_class ); ?>" aria-label="Product Navigation">

        <div class="product-nav-previous"><?php previous_post_link( '%link', '<i class="spk-icon spk-icon-left-small"></i><span>' . esc_html__( 'Previous Product', 'shopkeeper' ) . '</span>' ); ?></div>
        <div class="product-nav-next"><?php next_post_link( '%link', '<span>' . esc_html__( 'Next Product', 'shopkeeper' ) . '</span><i class="spk-icon spk-icon-right-small"></i>' ); ?></div>

	</nav><!-- #<?php echo esc_html( $nav_id ); ?> -->
	<?php
}
endif; // shopkeeper_product_nav




if ( ! function_exists( 'shopkeeper_comment' ) ) :
function shopkeeper_comment( $comment, $args, $depth ) {
	$GLOBALS['comment'] = $comment;

	if ( 'pingback' == $comment->comment_type || 'trackback' == $comment->comment_type ) : ?>

	<li id="comment-<?php comment_ID(); ?>" <?php comment_class(); ?>>
		<div class="comment-body">
			<?php esc_html_e( 'Pingback:', 'shopkeeper' ); ?> <?php comment_author_link(); ?> <?php edit_comment_link( esc_html__( 'Edit', 'shopkeeper' ), '<span class="edit-link">', '</span>' ); ?>
		</div>

	<?php else : ?>

	<li id="comment-<?php comment_ID(); ?>" <?php comment_class( empty( $args['has_children'] ) ? '' : 'parent' ); ?>>
		<article id="div-comment-<?php comment_ID(); ?>" class="comment-body">

			<div class="comment-content">

				<div class="comment-author-avatar">
					<?php echo get_avatar( $comment, 140 ); ?>
				</div><!-- .comment-author-avatar -->

				<?php if ( '0' == $comment->comment_approved ) : ?>
					<p class="comment-awaiting-moderation"><?php esc_html_e( 'Your comment is awaiting moderation.', 'shopkeeper' ); ?></p>
				<?php endif; ?>

				<?php printf( esc_html__( '%s', 'shopkeeper' ), sprintf( '<h3 class="comment-author">%s</h3>', get_comment_author_link() ) ); ?>

                <div class="comment-metadata">
                    <a href="<?php echo esc_url( get_comment_link( $comment->comment_ID ) ); ?>">
                        <time datetime="<?php comment_time( 'c' ); ?>">
                            <?php printf( esc_html__( '%1$s at %2$s', 'shopkeeper' ), get_comment_date(), get_comment_time() ); ?>
                        </time>
                    </a>
                </div><!-- .comment-metadata -->

				<div class="comment-text"><?php comment_text(); ?></div><!-- .comment-text -->

                <?php
					comment_reply_link( array_merge( $args, array(
						'add_below' => 'div-comment',
						'depth'     => $depth,
						'max_depth' => $args['max_depth'],
						'before'    => '<span class="comment-reply">',
						'after'     => '</span>',
					) ) );
				?>

				<?php edit_comment_link( esc_html__( 'Edit', 'shopkeeper' ) ); ?>

				<div class="comment-separator"></div>

			</div><!-- .comment-content -->

		</article><!-- .comment-body -->

	<?php
	endif;
}
endif; // ends check for shopkeeper_comment()



//==============================================================================
//	Returns true if a blog has more than 1 category.
//==============================================================================
if ( ! function_exists('shopkeeper_categorized_blog') ) :
function shopkeeper_categorized_blog() {
	if ( false === ( $all_the_cool_cats = get_transient( 'all_the_cool_cats' ) ) ) {
		// Create an array of all the categories that are attached to posts.
		$all_the_cool_cats = get_categories( array(
			'hide_empty' => 1,
		) );

		// Count the number of categories that are attached to the posts.
		$all_the_cool_cats = count( $all_the_cool_cats );

		set_transient( 'all_the_cool_cats', $all_the_cool_cats );
	}

	if ( '1' != $all_the_cool_cats ) {
		// This blog has more than 1 category so shopkeeper_categorized_blog should return true.
		return true;
	} else {
		// This blog has only 1 category so shopkeeper_categorized_blog should return false.
		return false;
	}
}
endif;



//==============================================================================
//	Flush out the transients used in shopkeeper_categorized_blog.
//==============================================================================
if ( ! function_exists('shopkeeper_category_transient_flusher') ) :
function shopkeeper_category_transient_flusher() {
	// Like, beat it. Dig?
	delete_transient( 'all_the_cool_cats' );
}
endif;
add_action( 'edit_category', 'shopkeeper_category_transient_flusher' );
add_action( 'save_post',     'shopkeeper_category_transient_flusher' );


//==============================================================================
//	Post Navigation Archive
//==============================================================================
if ( ! function_exists( 'getbowtied_the_posts_navigation' ) ) :
function getbowtied_the_posts_navigation() {
    // Don't print empty markup if there's only one page.
    if ( $GLOBALS['wp_query']->max_num_pages < 2 ) {
        return;
    }
    ?>

            <nav class="posts-navigation" >
                <?php
                    $args = array(
                   'base'  => esc_url_raw( str_replace( 999999999, '%#%', remove_query_arg( 'add-to-cart', get_pagenum_link( 999999999, false ) ) ) ),
                'format'       => '',
                'add_args'     => '',
                'current'      => max( 1, get_query_var( 'paged' ) ),
                'total'        => $GLOBALS['wp_query']->max_num_pages,
                'prev_text'    => '&larr;',
                'next_text'    => '&rarr;',
                'type'         => 'list',
                'end_size'     => 3,
                'mid_size'     => 3
                );

                    echo paginate_links($args);
                ?>
            </nav><!-- .navigation -->
    <?php
}
endif;
