<?php
/**
 * Custom template tags for this theme.
 *
 * Eventually, some of the functionality here could be replaced by core features.
 *
 * @package laveo
 */
if ( ! function_exists( 'laveo_posts_navigation' ) ) :
	/**
	 * Display navigation to next/previous set of posts when applicable.
	 *
	 */
	function laveo_posts_navigation() {
		// Don't print empty markup if there's only one page.
		if ( $GLOBALS['wp_query']->max_num_pages < 2 ) {
			return;
		}
		$paged        = get_query_var( 'paged' ) ? intval( get_query_var( 'paged' ) ) : 1;
		$pagenum_link = html_entity_decode( get_pagenum_link() );

		$query_args = array();
		$url_parts  = explode( '?', $pagenum_link );

		if ( isset( $url_parts[1] ) ) {
			wp_parse_str( $url_parts[1], $query_args );
		}

		$pagenum_link = esc_url( remove_query_arg( array_keys( $query_args ), $pagenum_link ) );
		$pagenum_link = trailingslashit( $pagenum_link ) . '%_%';

		$format = $GLOBALS['wp_rewrite']->using_index_permalinks() && ! strpos( $pagenum_link, 'index.php' ) ? 'index.php/' : '';
		$format .= $GLOBALS['wp_rewrite']->using_permalinks() ? user_trailingslashit( 'page/%#%', 'paged' ) : '?paged=%#%';

		// Set up paginated links.
		$links = paginate_links( array(
			'base'      => $pagenum_link,
			'format'    => $format,
			'total'     => $GLOBALS['wp_query']->max_num_pages,
			'current'   => $paged,
			'mid_size'  => 1,
			'add_args'  => array_map( 'urlencode', $query_args ),
			'prev_text' => esc_html__('Prev','laveo'),
			'next_text' => esc_html__('Next','laveo'),
			'type'      => 'list'
		) );

		if ( $links ) :
			?>
			<div class="pagination">
				<?php echo ent2ncr( $links ); ?>
			</div>
			<?php
		endif;
	}
endif;

if ( ! function_exists( 'laveo_posted_on' ) ) :
/**
 * Prints HTML with meta information for the current post-date/time and author.
 */
function laveo_posted_on() {
	$time_string = '<time class="entry-date published updated" datetime="%1$s">%2$s</time>';
	if ( get_the_time( 'U' ) !== get_the_modified_time( 'U' ) ) {
		$time_string = '<time class="entry-date published" datetime="%1$s">%2$s</time><time class="updated" datetime="%3$s">%4$s</time>';
	}

	$time_string = sprintf( $time_string,
		esc_attr( get_the_date( 'c' ) ),
		esc_html( get_the_date() ),
		esc_attr( get_the_modified_date( 'c' ) ),
		esc_html( get_the_modified_date() )
	);

	$posted_on = sprintf(
		esc_html_x( 'Posted on %s', 'post date', 'laveo' ),
		'<a href="' . esc_url( get_permalink() ) . '" rel="bookmark">' . $time_string . '</a>'
	);

	$byline = sprintf(
		esc_html_x( 'by %s', 'post author', 'laveo' ),
		'<span class="author vcard"><a class="url fn n" href="' . esc_url( get_author_posts_url( get_the_author_meta( 'ID' ) ) ) . '">' . esc_html( get_the_author() ) . '</a></span>'
	);

	echo '<span class="posted-on">' . $posted_on . '</span><span class="byline"> ' . $byline . '</span>'; // WPCS: XSS OK.

}
endif;

if ( ! function_exists( 'laveo_entry_footer' ) ) :
/**
 * Prints HTML with meta information for the categories, tags and comments.
 */
function laveo_entry_footer() {
	// Hide category and tag text for pages.
	if ( 'post' === get_post_type() ) {
		/* translators: used between list items, there is a space after the comma */
		$categories_list = get_the_category_list( esc_html__( ', ', 'laveo' ) );
		if ( $categories_list && laveo_categorized_blog() ) {
			printf( '<span class="cat-links">' . esc_html__( 'Posted in %1$s', 'laveo' ) . '</span>', $categories_list ); // WPCS: XSS OK.
		}

		/* translators: used between list items, there is a space after the comma */
		$tags_list = get_the_tag_list( '', esc_html__( ', ', 'laveo' ) );
		if ( $tags_list ) {
			printf( '<span class="tags-links">' . esc_html__( 'Tagged %1$s', 'laveo' ) . '</span>', $tags_list ); // WPCS: XSS OK.
		}
	}

	if ( ! is_single() && ! post_password_required() && ( comments_open() || get_comments_number() ) ) {
		echo '<span class="comments-link">';
		comments_popup_link( esc_html__( 'Leave a comment', 'laveo' ), esc_html__( '1 Comment', 'laveo' ), esc_html__( '% Comments', 'laveo' ) );
		echo '</span>';
	}

	edit_post_link(
		sprintf(
			/* translators: %s: Name of current post */
			esc_html__( 'Edit %s', 'laveo' ),
			the_title( '<span class="screen-reader-text">"', '"</span>', false )
		),
		'<span class="edit-link">',
		'</span>'
	);
}
endif;

/**
 * Returns true if a blog has more than 1 category.
 *
 * @return bool
 */
function laveo_categorized_blog() {
	if ( false === ( $all_the_cool_cats = get_transient( 'laveo_categories' ) ) ) {
		// Create an array of all the categories that are attached to posts.
		$all_the_cool_cats = get_categories( array(
			'fields'     => 'ids',
			'hide_empty' => 1,

			// We only need to know if there is more than one category.
			'number'     => 2,
		) );

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

		set_transient( 'laveo_categories', $all_the_cool_cats );
	}

	if ( $all_the_cool_cats > 1 ) {
		// This blog has more than 1 category so laveo_categorized_blog should return true.
		return true;
	} else {
		// This blog has only 1 category so laveo_categorized_blog should return false.
		return false;
	}
}

/**
 * Flush out the transients used in laveo_categorized_blog.
 */
function laveo_category_transient_flusher() {
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
		return;
	}
	// Like, beat it. Dig?
	delete_transient( 'laveo_categories' );
}
add_action( 'edit_category', 'laveo_category_transient_flusher' );
add_action( 'save_post',     'laveo_category_transient_flusher' );
