<?php
/*
Plugin Name: Game Server Tracker
Plugin URI: http://hannawerner.com/wordpress/game-server-tracker-version-1-7/
Description: Gets current stats of a Game Server from GameTracker.com and displays them in the sidebar. The Game Server Tracker supports all games that are supported by GameTracker.com.
Version: 1.7
License: GPLv2
Author: Hanna Camille Werner
Author URI: http://www.hannawerner.com
*/

$alttitle = $instance['alttitle'];

add_action('get_header', function(){
  echo
<<<Javascript
  <script type="text/javascript" language="JavaScript">
  <!--
      function HideMoreContent(d) {
          document.getElementById(d).style.display = "none";
      }
      function ShowMoreContent(d) {
          document.getElementById(d).style.display = "block";
      }
      function ReverseDisplay(d) {
          if(document.getElementById(d).style.display == "none") { document.getElementById(d).style.display = "block"; }
          else { document.getElementById(d).style.display = "none"; }
      }
  //-->
  </script>
Javascript;
});

class HCW_Gameserver_Tracker extends WP_Widget {

    function HCW_Gameserver_Tracker() {
        $widget_ops = array(
            'classname' => 'widget_hcw_gst',
            'description' => __('Displays Game  Server Information')
        );

        $control_ops = array();
        $this->WP_Widget(
            'hcwgst',
            __('Game Server Tracker'),
            $widget_ops,
            $control_ops
        );
    }

    function widget( $args, $instance ) {
        extract($args);
        $serverip = $instance['serverip'];

        echo $before_widget . $before_title;
        echo $instance['alttitle'];
        echo $after_title;

        if(class_exists('\Memcached'))
        {
            $m = new Memcached();
            $m->addServer('localhost', 11211);
        }

        $cacheKey = 'wp_gst_serverinfo_'.$serverip;
        if(class_exists('\Memcached') && ($cachedValue = $m->get($cacheKey))){
            $dataMapping = $cachedValue;
        }else{
            $content = file_get_contents("http://www.gametracker.com/server_info/$serverip/");

            preg_match("/<span class=\"item_color_success\"(.*?)>(.+?)<\/span>/s", $content, $matchesalive);
            preg_match("/<span id=\"HTML_num_players\"(.*?)>(.+?)<\/span>/s", $content, $matchesnumplayers);
            preg_match("/<span id=\"HTML_max_players\"(.*?)>(.+?)<\/span>/s", $content, $matchestotalplayers);
            preg_match("/<span id=\"HTML_num_bots\"(.*?)>(.+?)<\/span>/s", $content, $matchesbots);
            preg_match("/<div class=\"si_map_header\" id=\"HTML_curr_map\"(.*?)>(.+?)<\/div>/s", $content, $matchesmap);
            preg_match("/<span class=\"item_color_title\"(.*?)>Game:<\/span>(.+?)&nbsp;/s", $content, $matchesgame);
            preg_match("/<span class=\"item_color_title\"(.*?)>Name:<\/span>(.+?)<br\/\>/s", $content, $matchesclan);
            preg_match("/<div class=\"si_map_image\" id=\"HTML_map_ss_img\"(.*?)>(.+?)<\/div>/s", $content, $matchesimgmap);

            $dataMapping = array(
                'status'         => trim($matchesalive[2]),
                'game'           => trim($matchesgame[2]),
                'bots'           => trim($matchesbots[2]),
                'player_current' => trim($matchesnumplayers[2]),
                'player_total'   => trim($matchestotalplayers[2]),
                'map'            => trim($matchesmap[2]),
                'map_image'      => $matchesimgmap[2],
                'clan'           => trim($matchesclan[2]),
            );

            if(class_exists('\Memcached'))
                $m->set(
                    $cacheKey,
                    $dataMapping,
                    60 * 5
                ); /* Cache for 1 Minute */
        }

        echo '<ul>';

        echo '<li><strong>Game: </strong>';
        echo $dataMapping['game'];
        echo '</li><li><strong>IP: </strong><a href="http://www.gametracker.com/server_info/';
        echo $serverip;
        echo '/" target="_blank">';
        echo $serverip;
        echo '</a></li><li><strong>Server Status: </strong>';
        echo $dataMapping['status'];
        echo '</li><li><strong>Players: </strong>';
        echo $dataMapping['player_current'];
        echo '/';
        echo $dataMapping['player_total'];

        if($dataMapping['bots'] != 0)
        {
            echo '</li><li><strong>Bots: </strong>';
            echo $dataMapping['bots'];
        }
        if(!empty($dataMapping['map']))
            echo '</li><li><strong>Map: </strong>';

        ?>
        <?php if(!empty($dataMapping['map']) and strpos($dataMapping['map_image'], 'nomap.jpg') === false): ?>
            <a class="moreserverinfo" href="javascript:ReverseDisplay('<?php echo $serverip; ?>')"><?php echo $dataMapping['map']; ?> &raquo;</a>

            <div class="content-sidebar" id="<?php echo $serverip; ?>" style="display:none; padding-top:5px;">
                <?php echo $dataMapping['map_image']; ?>
            </div>
        <?php elseif(!empty($dataMapping['map'])): ?>
          <?php echo $dataMapping['map']; ?>
        <?php endif; ?>
        <?php
            echo '</li>';
            echo '</ul>';
        ?>
        <?php echo $after_widget;
    }

    function update( $new_instance, $old_instance ) {
        $instance = $old_instance;
        $instance['serverip'] = strip_tags($new_instance['serverip']);
        $instance['alttitle'] = strip_tags($new_instance['alttitle']);
        return $instance;
    }

    function form( $instance ) {
        $instance = wp_parse_args(
            (array) $instance,
            array(
                'title' => '',
                'serverip' => '',
                'alttitle' => false
            )
        );

        if ($instance['serverip'])
            $title = preg_replace('/\?.*/', "", basename($instance['serverip']));

        ?>
        <?php ?>
        <input id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="hidden" value="<?php echo $title; ?>" />
        <p>
            <label for="<?php echo $this->get_field_id('alttitle'); ?>">
                &nbsp;<?php _e('Server Name:'); ?>
                <input class="widefat" id="<?php echo $this->get_field_id('alttitle'); ?>" name="<?php echo $this->get_field_name('alttitle'); ?>" type="text" value="<?php echo $instance['alttitle']; ?>" />

            </label>
        </p>

        <p>
            <label for="<?php echo $this->get_field_id('serverip'); ?>">
                 &nbsp;<?php _e('Server IP and Port:'); ?>
                <input class="widefat" id="<?php echo $this->get_field_id('serverip'); ?>" name="<?php echo $this->get_field_name('serverip'); ?>" type="text" value="<?php echo $instance['serverip']; ?>" /><br />&nbsp;<small>e.g. 213.239.207.85:27960</small><br />
            </label>
        </p>
    <?php
    }
}

function widget_hcw_gst_init() {
    register_widget('HCW_Gameserver_Tracker');
}
add_action('init', 'widget_hcw_gst_init', 1);

?>