<?php
namespace Wpmet\Libs;

defined('ABSPATH') || exit;

if (!class_exists('\Wpmet\Libs\Stories')):

    class Stories {

        protected $script_version = '1.1.1';

        protected $key = 'wpmet_stories';
        protected $data;
        protected $title;
        protected $plugin_link = [];
        protected $last_check; 
        protected $check_interval = (3600 * 6);

        protected $plugin_screens;

        protected $text_domain;
        protected $filter_string;
        protected $api_url;

        private $stories;

        /**
         * Get version of this script
         *
         * @return string Version name
         */
        public function get_version() {
            return $this->script_version;
        }

        /**
         * Get current directory path
         *
         * @return string
         */
        public function get_script_location() {
            return __FILE__;
        }

        public function set_plugin($link_title, $weblink = 'https://wpmet.com/') {
            $this->plugin_link[] = [ $link_title, $weblink ];

            return $this;
        }

        public function call() {
            add_action('wp_dashboard_setup', [$this, 'show_story_widget'], 111);
        }

        private function in_whitelist($conf, $list) {

            $match = $conf->data->whitelist;

            if (empty($match)) {

                return true;
            };

            $match_arr = explode(',', $match);

            foreach ($list as $word) {
                if (in_array($word, $match_arr)) {

                    return true;
                }
            }

            return false;
        }

        private function in_blacklist($conf, $list) {

            $match = $conf->data->blacklist;

            if (empty($match)) {

                return false;
            };

            $match_arr = explode(',', $match);

            foreach ($match_arr as $idx => $item) {

                $match_arr[$idx] = trim($item);
            }

            foreach ($list as $word) {
                if (in_array($word, $match_arr)) {

                    return true;
                }
            }

            return false;
        }

        public function set_title($title = '') {
            $this->title = $title;

            return $this;
        }

        public function is_test($is_test = false) {

            if ($is_test === true) {
                $this->check_interval = 1;
            }

            return $this;
        }

        public function set_text_domain($text_domain) {

            $this->text_domain = $text_domain;

            return $this;
        }

        public function set_filter($filter_string) {

            $this->filter_string = $filter_string;

            return $this;
        }

        public function set_api_url($url) {

            $this->api_url = $url;

            return $this;
        }

        public function set_plugin_screens($screen) {

            $this->plugin_screens[] = $screen;

            return $this;
        }

        private function set_stories($story) {
            $filter = [$this->text_domain];
            foreach (get_option('active_plugins') as $plugin) {
                $temp = pathinfo($plugin);
                if(!empty($temp)) {
                    $filter[] = trim($temp['filename']);
                }
            }

            if (isset($this->stories[$story->id])) {
                return;
            }
            
            // if start and endtime is set, check current time is inside the timeframe
            if ((!empty($story->start) && !empty($story->end)) && (intval($story->start) > time() || intval($story->end) < time())) {
                return;
            }

            if(empty(array_intersect($filter, $story->plugins))) {
                return;
            }

            $this->stories[$story->id] = [
                'id'                    => $story->id,
                'title'                 => $story->title,
                'description'           => $story->description,
                'type'                  => $story->type,
                'priority'              => $story->priority,
                'story_link'    => $story->data->story_link,
                'story_image'   => $story->data->story_image,
            ];
        }

        private function get_stories() {
            $this->data = get_option($this->text_domain . '__stories_data');
            $this->data = $this->data == '' ? [] : $this->data;

            $this->last_check = get_option($this->text_domain . '__stories_last_check');

            $this->last_check = empty($this->last_check) ? 0 : $this->last_check;

            if (($this->check_interval + $this->last_check) < time()) {
                $response = wp_remote_get($this->api_url  . 'cache/stories.json?nocache=' . time(),
                    [
                        'timeout'     => 10,
                        'httpversion' => '1.1',
                    ]
                );

                
                if (!is_wp_error($response) && isset($response['body']) && $response['body'] != '') {
                    
                    $response = json_decode($response['body']);
                    
                    if (!empty($response)) {
                        $this->data = $response;
    
                        update_option($this->text_domain . '__stories_last_check', time());
                        update_option($this->text_domain . '__stories_data', $this->data);
                    }

                    return;
                }
            }
        }
        
        public function show_story_widget() {
            $this->get_stories();

            if (!empty($this->data->error)) {

                return;
            }

            if (empty($this->data)) {

                return;
            }

            $list = [];

            if (!empty($this->filter_string)) {

                $list = explode(',', $this->filter_string);

                foreach ($list as $idx => $item) {
                    $list[$idx] = trim($item);
                }
                $list = array_filter($list);
            }

            
            foreach ($this->data as $story) {
                
                if (!empty($list) && $this->in_blacklist($story, $list)) {
                    
                    continue;
                }
                
                $this->set_stories($story);
            }

            if(empty($this->stories)) {
                return;
            }


            $this->title = (isset($this->title) && !empty($this->title) ? $this->title . ' ' : '') . 'Stories';

            wp_add_dashboard_widget( 'wpmet-stories', __( 'Wpmet Stories', 'metform' ), [ $this, 'show' ], null, null, 'normal', 'high' );

            // Move our widget to top.
            global $wp_meta_boxes;

            $dashboard = $wp_meta_boxes['dashboard']['normal']['high'];
            $ours = [
                'wpmet-stories' => $dashboard['wpmet-stories'],
            ];

            $wp_meta_boxes['dashboard']['normal']['high'] = array_merge( $ours, $dashboard );
        }

        public function show() {
            usort($this->stories, function ($a, $b) {
                if ($a['priority']==$b['priority']) {
                    return 0;
                }
                return ($a['priority'] < $b['priority']) ? -1 : 1;
            });
            include_once 'views/template.php';
        }

        /**
         * Crosscheck if Story library will be shown at current WP admin page or not
         *
         * @param string $b_screen
         * @param string $screen_id
         * 
         * @return boolean
         */
        public function is_correct_screen_to_show($b_screen, $screen_id) {

            if (in_array($b_screen, [$screen_id, 'all_page'])) {

                return true;
            }

            if ($b_screen == 'plugin_page') {

                return in_array($screen_id, $this->plugin_screens);
            }

            return false;
        }

        /**
         * Define singleton instance
         *
         * @var [type]
         */
        private static $instance;

        public static function instance($text_domain = '') {
        
            if(!self::$instance) {
                self::$instance = new static();            
            }
    
            return self::$instance->set_text_domain($text_domain);
        }
    }

endif;