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Current File : /home/r/a/n/rankinh/villavanille/wp-content/plugins/custom-facebook-feed/inc/CFF_Group_Posts.php

<?php
/**
 * Class CFF_Groups_Post
 *
 *
 *
 * @since 3.19.3
 */
namespace CustomFacebookFeed;

use CustomFacebookFeed\Integrations\CFF_Graph_Data;
use CustomFacebookFeed\SB_Facebook_Data_Encryption;

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


class CFF_Group_Posts
{

    /**
     * @var string
     */
    private $cache_name;

    /**
     * @var string
     */
    private $api_call_url;

    /**
     * @var string
     */
    private $data_att_html;

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

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

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

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

    /**
     * @var int
     */
    private $next_urls_arr_safe;

    /**
     * @var bool
     */
    private $is_event_page;


    /**
     * @var class
     */
    private $encryption;



    /**
     * Construct.
     *
     * Construct Caching System
     *
     * @since 3.19.3
     * @access public
     */
    public function __construct($group_id, $feed_options, $api_call_url, $data_att_html, $is_event_page)
    {
        $this->encryption = new SB_Facebook_Data_Encryption();

        $this->cache_name = '!cff_group_' . $group_id . '_' . str_replace(',', '_', $feed_options['type']);
        $this->posts_cache_data = get_option($this->cache_name);
        $this->feed_options = $feed_options;
        $this->api_call_url = $api_call_url;
        #$this->api_call_url = $api_call_url . '&limit=100';
        $this->data_att_html = $data_att_html;
        $this->is_event_page = $is_event_page;
        if (!$this->posts_cache_data) {
            $this->posts_cache_data = new \stdClass();
            $this->posts_cache_data->api_url = $this->api_call_url;
            $this->posts_cache_data->shortcode_options = $this->data_att_html;
            $this->posts_cache_data->data = [];
        } else {
            $this->posts_cache_data = json_decode($this->encryption->maybe_decrypt($this->posts_cache_data));

        }

    }


    /**
     *
     * @since 3.19.3
     * Returns Needed Information for the Group Posts
     *
     * @access public
     */
    public function init_group_posts($json_data, $load_more_date, $show_posts)
    {
        $this->json_data = json_decode($json_data);
        $this->json_data = (isset($this->json_data->data) && $this->json_data->data > 0) ? $this->json_data->data : [];
        $this->posts_array = isset($this->posts_cache_data->data) ? (array) $this->posts_cache_data->data : [];
        $this->add_update_posts();
        $this->update_cache();
        $latest_record_date = CFF_Group_Posts::create_next_pagination($this->json_data, $show_posts);
        $load_from_cache = false;
        if (sizeof($this->json_data) <= 0 && !$this->is_event_page) {
            if ($load_more_date === false) {
                $json_data = $this->get_data_json(false, null);
            } else {
                $json_data = $this->get_data_json(true, $load_more_date);
            }
            $latest_record_date = CFF_Group_Posts::create_next_pagination($this->posts_cache_data->data, $show_posts);
            $load_from_cache = true;
        } else {
            $json_data_check = json_decode($json_data);
            $json_data = $this->check_posts_returned($json_data_check, $show_posts);
            $this->json_data = json_decode($json_data);
            $this->json_data = (isset($this->json_data->data) && $this->json_data->data > 0) ? $this->json_data->data : [];
            $latest_record_date = CFF_Group_Posts::create_next_pagination($this->json_data, $show_posts);
        }

        return [
            'posts_json' => $json_data,
            'latest_record_date' => $latest_record_date,
            'load_from_cache' => $load_from_cache
        ];
    }


    /**
     *
     * @since 3.19.3
     * Returns Needed Information for the Group Posts Events Page
     *
     * @access public
     */
    public function init_group_posts_events($json_data, $load_more_date, $show_posts)
    {

    }


    /**
     * Get The pagination Values
     *
     * @since 3.19.3
     * @access public
     */

    public static function check_duplicated_posts($prev_post, $ac_post)
    {
        $ac_message = isset($ac_post->message) ? $ac_post->message : '';
        $ac_link = isset($ac_post->link) ? $ac_post->link : '';
        $ac_description = isset($ac_post->description) ? $ac_post->description : '';

        $prev_message = isset($prev_post->message) ? $prev_post->message : '';
        $prev_link = isset($prev_post->link) ? $prev_post->link : '';
        $prev_description = isset($prev_post->description) ? $prev_post->description : '';

        $is_duplicate = (($prev_message == $ac_message) && ($prev_link == $ac_link) && ($prev_description == $ac_description) && !isset($ac_post->call_to_action->type)) ? true : false;
        return $is_duplicate;
    }


    /**
     *
     * @since 3.19.3
     * Checks if the returned posts number from the API o the transient cache
     * Is equal to the number of posts defined
     * IF NOT it does look for the posts from the Persistent Cache
     *
     * @access public
     */
    public function check_posts_returned($json_data, $show_posts)
    {
        if (isset($json_data->data)) {
            $prev_post = [];
            $result_array = [];
            foreach ($json_data->data as $single_post) {
                #$is_returned = !CFF_Group_Posts::check_duplicated_posts($prev_post, $single_post);
                $is_returned = true;
                $prev_post = $single_post;
                if ($is_returned) {
                    array_push($result_array, $single_post);
                }
            }
            $json_data->data = array_slice($result_array, 0, $show_posts);
            if (sizeof($json_data->data) < $show_posts) {
                $remaining_num = $show_posts - sizeof($json_data->data);
                $remaining_json_data = json_decode($this->get_data_json(true, CFF_Group_Posts::create_next_pagination($json_data->data, sizeof($json_data->data))));
                $json_data->data = array_merge($json_data->data, $remaining_json_data->data);
            }
        }
        if (sizeof($json_data->data) == 0)
            unset($json_data->paging);
        return json_encode($json_data);
    }



    /**
     *
     * @since 3.19.3
     * Add more POSTS to the Post array
     * It can add or update
     * @access public
     */
    public function add_update_posts()
    {
        $new_cached_posts = $this->posts_array;
        $posts_array_api = $this->json_data;
        foreach ($posts_array_api as $single_post) {
            if (isset($single_post->id)) {
                $key = array_search($single_post->id, array_column($this->posts_array, 'id'));
                if ($key !== false) {
                    $new_cached_posts[$key] = $single_post;
                } else {
                    array_push($new_cached_posts, $single_post);
                }
            }
        }
        $this->posts_array = $new_cached_posts;
    }


    /**
     *
     * @since 3.19.3
     * @access public
     */
    public function get_data_json($is_load_more, $next_urls_arr_safe)
    {
        if ($is_load_more && isset($next_urls_arr_safe)) {
            $this->next_urls_arr_safe = $next_urls_arr_safe;
            $new_array = array_filter($this->posts_cache_data->data, function ($single_post) {
                $the_time = isset($single_post->updated_time) ? $single_post->updated_time : $single_post->created_time;
                $is_returned = ((int) strtotime($the_time) < (int) $this->next_urls_arr_safe) &&
                    (!empty($single_post->message) || isset($single_post->call_to_action->type));
                return $is_returned;
            });
            $latest_record = end($this->posts_cache_data->data);
            $new_array = array_slice($new_array, 0, $this->feed_options['num']);
            $this->posts_cache_data->data = sizeof($new_array) > 0 ? $new_array : [];
            if ($latest_record == end($this->posts_cache_data->data)) {
                $this->posts_cache_data->no_more = true;
            }
        } else {
            $this->posts_cache_data->data = array_slice(
                $this->posts_cache_data->data,
                0, $this->feed_options['num']
            );
        }

        return json_encode($this->posts_cache_data);
    }




    /**
     * Save latest 100 posts
     *
     * @since 3.19.3
     * @access public
     */
    public function update_cache()
    {
        usort($this->posts_array, function ($post_1, $post_2) {
            $time_1 = isset($post_1->updated_time) ? $post_1->updated_time : $post_1->created_time;
            $time_2 = isset($post_2->updated_time) ? $post_2->updated_time : $post_2->created_time;
            return strcmp(strtotime($time_2), strtotime($time_1));
        });
        $this->posts_cache_data->is_event_page = $this->is_event_page;
        $this->posts_cache_data->data = array_slice($this->posts_array, 0, 100);
        if (sizeof($this->posts_array) > 0) {
            update_option($this->cache_name, $this->encryption->maybe_encrypt(json_encode($this->posts_cache_data)), false);
        }

    }



    public static function create_next_pagination($json_data_arr, $show_posts)
    {
        if (isset($json_data_arr) && sizeof((array) $json_data_arr) > 0) {
            $result_array = [];
            $prev_post = [];
            foreach ($json_data_arr as $single_post) {
                $is_returned = true;
                if ($is_returned) {
                    array_push($result_array, $single_post);
                }
                $prev_post = $single_post;
            }
            $json_data_arr = array_slice($result_array, 0, $show_posts);
            if (sizeof($json_data_arr) > 0 && sizeof($result_array) >= $show_posts) {
                $latest_one = end($json_data_arr);
                return isset($latest_one->updated_time) ? strtotime($latest_one->updated_time) : strtotime($latest_one->created_time);
            }
        }
        return 0;
    }


    /*
    API CALL FUNCTIONS *CRON JOB*
    */
    /**
     *
     * @since 3.19.3
     * Cron to Update the Persistent Cache for Group Posts
     * Get the latest 100 Posts from groups and Update in
     * @access public
     */
    public static function cron_update_group_persistent_cache()
    {
        global $wpdb;
        $encryption = new SB_Facebook_Data_Encryption();
        $table_name = $wpdb->prefix . "options";
        $persistent_groups = $wpdb->get_results("
	        SELECT `option_name` AS `name`, `option_value` AS `value`
	        FROM  $table_name
	        WHERE `option_name` LIKE ('%!cff\_group\_%')
	      ");
        foreach ($persistent_groups as $group) {
            $group_json = json_decode($encryption->maybe_decrypt($group->value), true);
            CFF_Group_Posts::update_or_add_group($group->name, $group_json);
        }
    }

    /**
     * Save latest 100 posts
     *
     * @since 3.19.3
     * @access public
     */
    public static function update_or_add_group($cache_name, $group_cache)
    {
        $api_url = $group_cache['api_url'];
        $cached_posts = $group_cache['data'];
        $is_event_page = isset($group_cache['is_event_page']) ? $group_cache['is_event_page'] : false;
        $data_att_html = $group_cache['shortcode_options'];
        $new_cached_posts = $cached_posts;
        $encryption = new SB_Facebook_Data_Encryption();

        $posts_array_api = json_decode(CFF_Group_Posts::api_call($api_url, $data_att_html));
        foreach ($posts_array_api->data as $single_post) {
            if (isset($single_post->id) && ($is_event_page || (!empty($single_post->message) || isset($single_post->call_to_action->type)))) {
                $key = array_search($single_post->id, array_column($cached_posts, 'id'));
                if ($key !== false) {
                    $new_cached_posts[$key] = $single_post;
                } else {
                    array_push($new_cached_posts, $single_post);
                }
            }
        }
        $feed_id = CFF_Group_Posts::get_feed_id_from_name($cache_name);
        $posts = array();
        $images_need_resizing = array();
        foreach ($posts_array_api->data as $new_post) {
            $posts[] = $new_post;
            $images_need_resizing[] = $new_post->id;
        }

        $resizer = new CFF_Resizer($images_need_resizing, $feed_id, $posts, $group_cache['shortcode_options']);
        $resizer->do_resizing_group();


        $posts_cache_data = new \stdClass();
        $posts_cache_data->api_url = $api_url;
        $posts_cache_data->shortcode_options = $data_att_html;
        $posts_cache_data->is_event_page = $is_event_page;

        usort($new_cached_posts, function ($post_1, $post_2) {
            $time_1 = isset($post_1->updated_time) ? $post_1->updated_time : (isset($post_1->created_time) ? $post_1->created_time : 0);
            $time_2 = isset($post_2->updated_time) ? $post_2->updated_time : (isset($post_2->created_time) ? $post_2->created_time : 0);
            return strcmp(strtotime($time_2), strtotime($time_1));
        });
        $new_cached_posts = array_slice($new_cached_posts, 0, 100);
        $posts_cache_data->data = $new_cached_posts;
        if (sizeof($new_cached_posts) > 0) {
            update_option($cache_name, $encryption->maybe_encrypt(json_encode($posts_cache_data)), false);
        }

    }


    public static function get_feed_id_from_name($cache_name)
    {
        $cache_name = str_replace('!cff_group_', '', $cache_name);
        $cache_name = explode(" ", $cache_name);
        return (isset($cache_name[0]) ? $cache_name[0] : 0);
    }

    /**
     * Api Call to get 100 posts from Group
     *
     * @since 3.19.3
     * @access public
     */
    public static function api_call($api_url, $data_att_html)
    {
        $api_url_100 = $api_url . '&limit=100';
        $posts_json = CFF_Utils::cff_fetchUrl($api_url_100);
        $FBdata = json_decode($posts_json);
        $prefix_data = '{"data":';
        $cff_featured_post = (substr($posts_json, 0, strlen($prefix_data)) == $prefix_data) ? false : true;
        $prefix = '{';
        if (substr($posts_json, 0, strlen($prefix)) == $prefix)
            $posts_json = substr($posts_json, strlen($prefix));
        $posts_json = '{"api_url":"' . $api_url . '", "shortcode_options":"' . $data_att_html . '", ' . $posts_json;
        if (!$cff_featured_post) {
            $FBdata = $FBdata->data;
        }

        if (!empty($FBdata)) {
            if (!isset($FBdata->error)) {
                return $posts_json;
            }
        }

        return '{"data":[]}';
    }

    public static function group_schedule_event($cff_cache_cron_time_unix, $cff_cron_schedule)
    {
		if (CFF_Graph_Data::should_make_group_call()) {
			if (!wp_next_scheduled('group_post_scheduler_cron')) {
				wp_schedule_event($cff_cache_cron_time_unix, $cff_cron_schedule, 'group_post_scheduler_cron');
			}
		}
    }

    public static function group_reschedule_event($cff_cache_cron_time_unix, $cff_cron_schedule)
    {
        if (CFF_Graph_Data::should_make_group_call()) {
			$timestamp = wp_next_scheduled('group_post_scheduler_cron');
			if ($timestamp) {
				wp_clear_scheduled_hook('group_post_scheduler_cron');
				wp_unschedule_event($timestamp, 'group_post_scheduler_cron');
			}
			if (!wp_next_scheduled('group_post_scheduler_cron')) {
				wp_schedule_event($cff_cache_cron_time_unix, $cff_cron_schedule, 'group_post_scheduler_cron');
			}
		}
    }

}