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

class Hashbar_Api {

    /**
     * Define necessary variables
     */
    const REMOTE_BASE_URL = 'https://feed.hasthemes.com/notices/news-feed';
    // const REMOTE_BASE_URL = 'http://news-feed.test'; // local dev — swap back before release
    const ENDPOINT_FILE = 'news-data.json';
    const TRANSIENT_KEY = 'hashbar_news_feed_data';

    /**
     * Get news feed data.
     * Retrieve the banner + feed data from the HasThemes news-feed server.
     *
     * @param bool $force_update Optional. Whether to force the data update.
     * @return array News Feed data ( 'banner' => [...], 'feed' => [...] ).
     */
    public static function get_remote_data( $force_update = false ) {
        $cache_key = self::TRANSIENT_KEY;

        $info_data = get_transient( $cache_key );

        if ( $force_update || false === $info_data ) {
            $timeout = ( $force_update ) ? 25 : 8;

            $response = wp_remote_get( sprintf( '%s/%s', self::REMOTE_BASE_URL, self::ENDPOINT_FILE ), [
                'timeout' => $timeout,
            ] );

            if ( is_wp_error( $response ) || 200 !== (int) wp_remote_retrieve_response_code( $response ) ) {
                set_transient( $cache_key, [], HOUR_IN_SECONDS );
                return [];
            }

            $info_data = json_decode( wp_remote_retrieve_body( $response ), true );

            if ( empty( $info_data ) || ! is_array( $info_data ) ) {
                set_transient( $cache_key, [], HOUR_IN_SECONDS );
                return [];
            }

            set_transient( $cache_key, $info_data, 12 * HOUR_IN_SECONDS );
        }

        return empty( $info_data ) ? [] : $info_data;
    }

}