utilities

<?php

namespace TokenToMe\TwitterCards;

if ( ! function_exists( 'add_action' ) ) {
    header( 'Status: 403 Forbidden' );
    header( 'HTTP/1.1 403 Forbidden' );
    exit();
}

class Utilities {

    /**
     * @param $at
     *
     * @return bool|mixed
     */
    public static function remove_at( $at ) {

        if ( ! is_string( $at ) ) {
            return false;
        }

        $noat = str_replace( '@', '', $at );

        return $noat;
    }

    /**
     * Put some cache on request
     * @return bool|mixed
     * @author Julien Maury
     */
    public static function get_github_repositories() {

        if ( false === ( $data = get_site_transient( 'jm_github_repos' ) ) ) {

            $request = wp_remote_get( 'https://api.github.com/users/tweetpressfr/repos?sort=created' );

            if ( ! empty( $request ) && ! is_wp_error( $request ) && wp_remote_retrieve_response_code( $request ) === 200 ) {
                $data = set_site_transient( 'jm_github_repos', wp_remote_retrieve_body( $request ), WEEK_IN_SECONDS );// it's actually enough ^^
            }

        }

        return $data;
    }

    /**
     * @return array
     * @author Julien Maury
     */
    public static function get_keys() {
        global $wpdb;
        $keys = $wpdb->get_results( "SELECT DISTINCT meta_key from {$wpdb->postmeta}" );

        if ( empty( $keys ) ) {
            return __return_empty_array();
        }

        $keys = wp_list_pluck( $keys, 'meta_key', 'meta_key' );
        array_unshift( $keys, __( 'Select' ) );

        return array_map( 'esc_attr', $keys );
    }

    /**
     * @param $lb
     *
     * @return string
     */
    public static function remove_lb( $lb ) {
        $output = str_replace( array( "\r" . PHP_EOL, "\r" ), PHP_EOL, $lb );
        $lines  = explode( PHP_EOL, $output );
        $nolb   = array();
        foreach ( $lines as $key => $line ) {
            if ( ! empty( $line ) ) {
                $nolb[] = trim( $line );
            }
        }

        return implode( $nolb );
    }

    /**
     * @param $post_id
     *
     * @return string
     */
    public static function get_excerpt_by_id( $post_id ) {
        $the_post    = get_post( $post_id );
        $the_excerpt = $the_post->post_content; //Gets post_content to be used as a basis for the excerpt

        //kill shortcode
        $shortcode_pattern = get_shortcode_regex();
        $the_excerpt       = preg_replace( '/' . $shortcode_pattern . '/', '', $the_excerpt );

        // kill tags
        $the_excerpt = strip_tags( $the_excerpt );

        return esc_attr( substr( $the_excerpt, 0, 200 ) ); // to prevent meta from being broken by e.g ""
    }

    /**
     * Allows us to get post types we want
     * and make some show/hide
     * @return array
     */
    public static function get_post_types() {
        $cpts = get_option( 'jm_tc_cpt' );

        return empty( $cpts['twitterCardPt'] ) ? get_post_types( array( 'public' => true ) ) : array_values( $cpts['twitterCardPt'] );
    }

}