class-jnews-social-background-process

<?php
/**
 * @author : Jegtheme
 */

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

/**
 * Class JNews Initial Counter
 */
class JNews_Social_Background_Process {

    /**
     * Action
     *
     * (default value: 'background_process')
     *
     * @var string
     * @access protected
     */
    protected $action = 'jnews_social_background_process';

    /**
     * @var Integer
     */
    private $post_id;

    /**
     * @var array
     */
    private $result;

    /**
     * @var array
     */
    private $socials = array( 'facebook', 'twitter', 'linkedin', 'stumbleupon', 'pinterest', 'vk' );

    /**
     * @return array
     */
    public function get_connection_option() {
        return array(
            CURLOPT_SSL_VERIFYPEER => false,
            CURLOPT_SSL_VERIFYHOST => false,
        );
    }

    public function fetch_data( $post_id ) {
        /**
         * Set Post ID
         */
        $this->post_id = $post_id;
        $response      = array();

        // Get Social Share
        $socials = array(
            array(
                'social_share' => 'facebook',
                'social_text'  => 'Share on Facebook',
            ),
            array(
                'social_share' => 'twitter',
                'social_text'  => 'Share on Twitter',
            ),
            array(
                'social_share' => 'pinterest',
                'social_text'  => '',
            ),
        );

        $secondary_socials = array(
            array(
                'social_share' => 'linkedin',
            ),

        );

        $socials = jnews_get_option( 'single_social_share_main', $socials );
        $socials = array_merge( $socials, jnews_get_option( 'single_social_share_secondary', $secondary_socials ) );

        foreach ( $socials as $social ) {
            $social_share = $social['social_share'];
            if ( in_array( $social_share, $this->socials ) ) {
                $response[ $social_share ] = wp_remote_get(
                    $this->get_api_url( $social_share ),
                    array( 'timeout' => 10 )
                );
                if ( is_array( $response[ $social_share ] ) ) {
                    $this->populate_data( $response[ $social_share ]['body'], $social_share );
                }
            }
        }

        $this->save_result();

        return false;
    }

    /**
     * Save fetch result
     */
    protected function save_result() {
        // set last fetched social
        update_post_meta( $this->post_id, JNEWS_SOCIAL_COUNTER_LAST_UPDATE, current_time( 'timestamp' ) );
        if ( is_array( $this->result ) ) {
            if ( array_sum( $this->result ) > 0 ) {
                // set all share
                update_post_meta( $this->post_id, JNEWS_SOCIAL_COUNTER_ALL, $this->result );

                // set total share
                update_post_meta( $this->post_id, JNEWS_SOCIAL_COUNTER_TOTAL, array_sum( $this->result ) );
            }
        }
    }


    /**
     * Populate data and save its result on array
     *
     * @todo fix facebook share counter, harus pake api nya dia skrng
     * @param $data
     * @param $url
     * @param $request_info
     * @param $service
     * @param $time
     */
    public function populate_data( $data, $service ) {
        $count = 0;

        switch ( $service ) {
            case 'facebook':
                $data = json_decode( $data );
                if ( $data ) {
                    $count = isset( $data->engagement->share_count ) ? $data->engagement->share_count : 0;
                }
                break;
            case 'twitter':
                $data  = json_decode( $data );
                $count = isset( $data->count ) ? $data->count : 0;
                break;
            case 'linkedin':
                $data  = json_decode( $data );
                $count = isset( $data->count ) ? $data->count : 0;
                break;
            case 'stumbleupon':
                $data                                  = json_decode( $data );
                isset( $data->result->views ) ? $count = $data->result->views : $count = 0;
                break;
            case 'pinterest':
                $data  = str_replace( array( 'jnews(', ')' ), '', $data );
                $data  = json_decode( $data );
                $count = isset( $data->count ) ? $data->count : 0;
                break;
            case 'buffer':
                $data  = json_decode( $data );
                $count = ! empty( $data ) ? $data->shares : 0;
                break;
            case 'vk':
                preg_match( '/^VK.Share.count\(\d+,\s+(\d+)\);$/i', $data, $matches );
                if ( $matches ) {
                    $count = $matches[1];
                }
                break;
        }

        $this->result[ $service ] = $count;
    }

    /**
     * Social API URL
     *
     * @param $social
     * @return string
     */
    protected function get_api_url( $social ) {
        $api_url = '';

        switch ( $social ) {
            case 'facebook':
                $fb_token = jnews_get_option( 'single_social_share_fb_token', '' );
                $fb_token = ! empty( $fb_token ) ? '&access_token=' . $fb_token : '';
                $api_url  = 'https://graph.facebook.com/?fields=engagement&id=' . $this->post_url() . $fb_token;
                break;
            case 'twitter':
                $api_url = 'https://counts.twitcount.com/counts.php?url=' . $this->post_url();
                break;
            case 'stumbleupon':
                $api_url = 'http://www.stumbleupon.com/services/1.01/badge.getinfo?url=' . $this->post_url();
                break;
            case 'pinterest':
                $api_url = 'https://api.pinterest.com/v1/urls/count.json?callback=jnews&url=' . $this->post_url();
                break;
            case 'buffer':
                $api_url = 'https://api.bufferapp.com/1/links/shares.json?url=' . $this->post_url();
                break;
            case 'vk':
                $api_url = 'https://vk.com/share.php?act=count&index=1&url=' . $this->post_url();
                break;
        }

        return $api_url;
    }


    /**
     * Get Post URL
     *
     * @return string
     */
    protected function post_url() {
        return apply_filters( 'jnews_social_counter_post_url', rawurlencode( get_permalink( $this->post_id ) ) );
    }
}