<?php
if ( !function_exists( 'travel_the_posts_navigation' ) ) :
	/**
	 * Display navigation to next/previous set of posts when applicable.
	 *
	 */
	function travel_the_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' => '<i class="fa fa-long-arrow-left"></i>',
			'next_text' => '<i class="fa fa-long-arrow-right"></i>',
			'type'      => 'list'
		) );
		if ( $links ) :
			?>
			<div class="navigation paging-navigation" role="navigation">
				<?php echo ent2ncr( $links ); ?>
			</div>
			<?php
		endif;
	}
endif;

/**
 * Custom template tags for this theme.
 *
 * Eventually, some of the functionality here could be replaced by core features.
 *
 * @package travelWP
 */

if ( !function_exists( 'travelwp_posted_on' ) ) :
	/**
	 * Prints HTML with meta information for the current post-date/time and author.
	 */
	function travelwp_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', 'travelwp' ),
			'<a href="' . esc_url( get_permalink() ) . '" rel="bookmark">' . $time_string . '</a>'
		);

		$byline = sprintf(
			esc_html_x( 'by %s', 'post author', 'travelwp' ),
			'<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( 'travelwp_posted_on_index' ) ) :
	/**
	 * Prints HTML with meta information for the current post-date/time and author.
	 */
	function travelwp_posted_on_index() {
		$time_string = '<time class="entry-date published updated" datetime="%1$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', 'travelwp' ),
			'<a href="' . esc_url( get_permalink() ) . '" rel="bookmark">' . $time_string . '</a>'
		);

		$byline = sprintf(
			esc_html_x( 'by %s', 'post author', 'travelwp' ),
			'<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( 'travelwp_entry_footer' ) ) :
	/**
	 * Prints HTML with meta information for the categories, tags and comments.
	 */
	function travelwp_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( ', ' );
			if ( $categories_list && travelwp_categorized_blog() ) {
				printf( '<span class="cat-links">' . esc_html__( 'Posted in %1$s', 'travelwp' ) . '</span>', $categories_list ); // WPCS: XSS OK.
			}

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

		if ( !is_single() && !post_password_required() && ( comments_open() || get_comments_number() ) ) {
			echo '<span class="comments-link">';
			/* translators: %s: post title */
			comments_popup_link( sprintf( wp_kses( __( 'Leave a Comment<span class="screen-reader-text"> on %s</span>', 'travelwp' ), array( 'span' => array( 'class' => array() ) ) ), get_the_title() ) );
			echo '</span>';
		}

		edit_post_link(
			sprintf(
			/* translators: %s: Name of current post */
				esc_html__( 'Edit %s', 'travelwp' ),
				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
 */

if ( !function_exists( 'travelwp_categorized_blog' ) ) :
	function travelwp_categorized_blog() {
		if ( false === ( $all_the_cool_cats = get_transient( 'travelwp_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( 'travelwp_categories', $all_the_cool_cats );
		}

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

/**
 * Flush out the transients used in travelwp_categorized_blog.
 */
function travelwp_category_transient_flusher() {
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
		return;
	}
	// Like, beat it. Dig?
	delete_transient( 'travelwp_categories' );
}

add_action( 'edit_category', 'travelwp_category_transient_flusher' );
add_action( 'save_post', 'travelwp_category_transient_flusher' );
