<?php
/**
 * Functions which enhance the theme by hooking into WordPress
 *
 * @package Promos
 */

/**
 * Adds custom classes to the array of body classes.
 *
 * @param array $classes Classes for the body element.
 * @return array
 */
function promos_body_classes( $classes ) {
	// Adds a class of hfeed to non-singular pages.
	if ( ! is_singular() ) {
		$classes[] = 'hfeed';
	}

	// Adds a class of no-sidebar when there is no sidebar present.
	if ( ! is_active_sidebar( 'sidebar-1' ) ) {
		$classes[] = 'no-sidebar';
	}

	return $classes;
}
add_filter( 'body_class', 'promos_body_classes' );

/**
 * Add a pingback url auto-discovery header for single posts, pages, or attachments.
 */
function promos_pingback_header() {
	if ( is_singular() && pings_open() ) {
		echo '<link rel="pingback" href="', esc_url( get_bloginfo( 'pingback_url' ) ), '">';
	}
}
add_action( 'wp_head', 'promos_pingback_header' );

/* Word read count Pagination */
if (!function_exists('promos_read_time')) :
    /**
     * @param $content
     *
     * @return string
     */
    function promos_read_time()
    {
        $content = apply_filters('the_content', get_post_field('post_content'));
        $read_words = 200;
        $decode_content = html_entity_decode($content);
        $filter_shortcode = do_shortcode($decode_content);
        $strip_tags = wp_strip_all_tags($filter_shortcode, true);
        $count = str_word_count($strip_tags);
        $word_per_min = (absint($count) / $read_words);
        $word_per_min = ceil($word_per_min);

        if (absint($word_per_min) > 0) {
            /* translators: %s: estimated reading time in minutes. */
            $word_count_strings = sprintf(_n('%s Min Reading', '%s Min Reading', absint($word_per_min), 'promos'), number_format_i18n($word_per_min));
            if ('post' == get_post_type()):
                echo '<span class="min-read">';
                echo esc_html($word_count_strings);
                echo '</span>';
            endif;

        }
    }
endif;
