Sync Facebook Events Fix

<?php
/*
Plugin Name: Sync Facebook Events
Plugin URI: http://pdxt.com
Description: Sync Facebook Events to The Events Calendar Plugin
Author: Mark Nelson
Version: 1.0.6
Revision by: Sam Haines (Wordpress username shaines1)
Author URI: http://pdxt.com
*/

/*  Copyright 2012 PDX Technologies, LLC. (mark.nelson@pdxt.com)

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/

register_activation_hook(__FILE__,'activate_fbes');
register_deactivation_hook(__FILE__,'deactivate_fbes');
function activate_fbes() { wp_schedule_event(time(), 'daily', 'fbes_execute_sync'); }
function deactivate_fbes() { wp_clear_scheduled_hook('fbes_execute_sync'); }
add_action('fbes_execute_sync', 'fbes_process_events');

function update_schedule($fbes_frequency) {

        wp_clear_scheduled_hook('fbes_execute_sync');
        wp_schedule_event(time(), $fbes_frequency, 'fbes_execute_sync');
}

function fbes_add_page() { add_options_page('Sync FB Events', 'Sync FB Events', 8, __FILE__, 'fbes_options_page'); }
add_action('admin_menu', 'fbes_add_page');

function fbes_process_events() {

    #Get option values
    $fbes_api_key = get_option('fbes_api_key');
    $fbes_api_secret = get_option('fbes_api_secret');
    $fbes_api_uid = get_option('fbes_api_uid');
    $fbes_api_uids = get_option('fbes_api_uids');
    $fbes_frequency = get_option('fbes_frequency');


    $events = fbes_get_events($fbes_api_key, $fbes_api_secret, $fbes_api_uids);
    fbes_send_events($events);
}

function fbes_get_events($fbes_api_key, $fbes_api_secret, $fbes_api_uids) {

    require 'facebook.php';

    $facebook = new Facebook(array(
        'appId'  =>  $fbes_api_key,
        'secret' =>  $fbes_api_secret,
        'cookie' => true,
    ));
Facebook::$CURL_OPTS[CURLOPT_SSL_VERIFYPEER] = false;
Facebook::$CURL_OPTS[CURLOPT_SSL_VERIFYHOST] = 2;

    $ret = array();
    foreach ($fbes_api_uids as $key => $value) {

        if($value!='') {
            //https://developers.facebook.com/docs/reference/fql/event/
            $fql = "SELECT eid, name, start_time, end_time, location, description
                    FROM event WHERE eid IN ( SELECT eid FROM event_member WHERE uid = $value )
                    ORDER BY start_time desc";

            $param  =   array(
                'method'    => 'fql.query',
                'query'     => $fql,
                'callback'  => ''
            );

            $result = $facebook->api($param);
            foreach($result as $k => $v)
                $result[$k]['uid'] = $value;
            $ret = array_merge($ret, $result);
        }
    }


    return $ret;
}

function fbes_segments($url='') {
    $parsed_url = parse_url($url);
    $path = trim($parsed_url['path'],'/');
    return explode('/',$path);
}

function fbes_send_events($events) {

    $query = new WP_Query(array(
        'post_type'=>'tribe_events',
        'posts_per_page'=>'-1'
    ));



    foreach($query->posts as $post) {
        if(!empty($post->to_ping)) {
            $segments = fbes_segments($post->to_ping);
            $eid = array_pop($segments);
            $eids[$eid] = $post->ID;
        }
//if you're reading this and you want to delete all those duplicate events, uncomment this temporarially. Note, it will also delete all manually made events since June 13
//http://codex.wordpress.org/Version_3.4 - June 13, 2012
//depending on many duplicates you had, you might end up re-loading this script a bunch of times after it times out. Me, I had 14k duplicates. Had to run the script like 10 times.
/*
        else {
            $post_date = trim(substr($post->post_date, 0, 10));
            if($post->post_date > '2012-06-12')
                wp_delete_post($post->ID);
        }
*/
    }
    //file_put_contents($_SERVER['DOCUMENT_ROOT'].'/fbevent.log', print_r(array(time(),$events,$eids),1)."\n".str_repeat('=',40)."\n", FILE_APPEND);

    foreach($events as $event) {
        $args['post_title'] = $event['name'];

        $offset = get_option('gmt_offset')*3600;

        $offsetStart = strtotime($event['start_time'])+$offset;
        $offsetEnd = $event['end_time']+$offset;

        //don't update or insert events from the past.
        if($offsetStart > time()) {
            $args['EventStartDate'] = date("m/d/Y", $offsetStart);
            $args['EventStartHour'] = date("H", $offsetStart);
            $args['EventStartMinute'] = date("i", $offsetStart);

            $args['EventEndDate'] = date("m/d/Y", $offsetEnd);
            $args['EventEndHour'] = date("H", $offsetEnd);
            $args['EventEndMinute'] = date("i", $offsetEnd);

            $args['post_content'] = $event['description'];
            $args['Venue']['Venue'] = $event['location'];

            $args['post_status'] = "Publish";
            $args['post_type'] = "tribe_events";
            //$args['to_ping'] = $event['eid']; //damn you, sanitize_trackback_urls in 3.4
            $args['to_ping'] = 'https://www.facebook.com/events/'.$event['eid'].'/';

            if($args['EventStartHour'] == '22' && $event['uid'] == '256763181050120') { //why are UT events 2 hours off???
                $args['EventStartHour'] = '20';
                $args['EventEndHour'] = '22';
                $args['EventEndDate'] = date('m/d/Y',strtotime($args['EventEndDate'], '-1 day'));
            }

            $inserting = $post_id = false;
            if (!array_key_exists($event['eid'], $eids)) {
                //double check
                $already_exists = false;
                foreach($query->posts as $post) {
                    if($post->to_ping == $args['to_ping'] || trim($post->pinged) == $args['to_ping']) {
                        $already_exists = true;
                    }
                }
                if(!$already_exists) {
                    file_put_contents($_SERVER['DOCUMENT_ROOT'].'/fbevent.log', print_r(array(time(),'creating', $args, $eids, $query->posts),1)."\n".str_repeat('=',40)."\n", FILE_APPEND);
                    $post_id = tribe_create_event($args);
                    echo "<br />Inserting: ".$post_id;
                    $inserting = true;
                }
            }
            if(!$inserting) {
                $post_id = $eids[$event['eid']];
                tribe_update_event($post_id, $args);
                echo "<br />Updating: ".$eids[$event['eid']];
            }
            if($post_id)
                update_metadata('post', $post_id, 'fb_event_obj', $event);
                //eid, name, start_time, end_time, location, description
        }
        //reset($eids);
    }
}

function fbes_options_page() {

    $fbes_api_uids = array();

    #Get option values
    $fbes_api_key = get_option('fbes_api_key');
    $fbes_api_secret = get_option('fbes_api_secret');
    $fbes_api_uid = get_option('fbes_api_uid');
    $fbes_api_uids = get_option('fbes_api_uids');
    $fbes_frequency = get_option('fbes_frequency');

    #Get new updated option values, and save them
    if( !empty($_POST['update']) ) {

        $fbes_api_key = $_POST['fbes_api_key'];
        update_option('fbes_api_key', $fbes_api_key);

        $fbes_api_secret = $_POST['fbes_api_secret'];
        update_option('fbes_api_secret', $fbes_api_secret);

        $fbes_api_uid = $_POST['fbes_api_uid'];
        update_option('fbes_api_uid', $fbes_api_uid);

        $fbes_frequency = $_POST['fbes_frequency'];
        update_option('fbes_frequency', $fbes_frequency);

        $events = fbes_get_events($fbes_api_key, $fbes_api_secret, $fbes_api_uids);

        update_schedule($fbes_frequency);

        $msg = "Syncronization of Events from Facebook Complete.";
?>
        <div id="message" class="updated fade"><p><strong><?php echo $msg; ?></strong></p></div>
<?php
    } elseif( !empty($_POST['add-uid']) ) {

        if(!in_array($_POST['fbes_api_uid'], $fbes_api_uids)) {
            $fbes_api_uids[] = $_POST['fbes_api_uid'];
            update_option('fbes_api_uids', $fbes_api_uids);
        }

    } elseif( !empty($_GET['r']) ) {

        foreach ($fbes_api_uids as $key => $value)
            if($fbes_api_uids[$key] == $_GET['r'])
                unset($fbes_api_uids[$key]);

        update_option('fbes_api_uids', $fbes_api_uids);
    }
?>
    <div class="wrap">
        <br /><div class="icon32" id="icon-plugins"><br/></div>
        <h2 style="margin-bottom:10px;">Sync Facebook Events</h2>
        <form method="post" action="<?php echo $_SERVER['REQUEST_URI'] ?>">
        <input type="hidden" name="update" />
        <?php
        echo '<form action="'. $_SERVER["REQUEST_URI"] .'" method="post"><table style="width:475px;">';
        echo '<tr><td>Facebook App ID:</td><td><input type="text" id="fbes_api_key" name="fbes_api_key" value="'.htmlentities($fbes_api_key).'" size="35" /></td><tr>';
        echo '<tr><td>Facebook App Secret:</td><td><input type="text" id="fbes_api_secret" name="fbes_api_secret" value="'.htmlentities($fbes_api_secret) .'" size="35" /></td><tr>';

        echo '<tr><td>Update Fequency:</td><td><select id="fbes_frequency" name="fbes_frequency">';
        if(htmlentities($fbes_frequency)=="daily") {
            echo '<option value="daily" SELECTED>Daily</option>';
        } else {
            echo '<option value="daily">Daily</option>';
        }
        if(htmlentities($fbes_frequency)=="twicedaily") {
            echo '<option value="twicedaily" SELECTED>Twice Daily</option>';
        } else {
            echo '<option value="twicedaily">Twice Daily</option>';
        }
        if(htmlentities($fbes_frequency)=="hourly") {
            echo '<option value="hourly" SELECTED>Hourly</option>';
        } else {
            echo '<option value="hourly">Hourly</option>';
        }
        echo '</select>';

        echo '<tr><td>Add Facebook Page UID:</td><td><input type="text" id="fbes_api_uid" name="fbes_api_uid" value="" size="15" />';
        echo '<input type="submit" value="Add" class="button-secondary" name="add-uid" /></td></tr>';

        echo '<tr><td style="vertical-align:top;"></td><td>';

        foreach ($fbes_api_uids as $value) {
            if($value!='')
                echo '&nbsp;&nbsp;'.$value.'&nbsp;&nbsp;<a href="'.$_SERVER["REQUEST_URI"].'&r='.$value.'">remove</a><br />';
        }

        echo '</td></tr>';

        echo '<tr><td colspan="2"></td></tr><tr><td colspan="2"><br /><input type="submit" value="Update" class="button-primary"';
        echo ' name="update" /></td></tr></table>';
        ?>
        </form>
    </div>
    <?php if(isset($events)) { ?>
        <div style="margin-top:20px;font-size:14px;color:#444;border:1px solid #999;padding:15px;width:95%;font-face:couriernew;">
        <span style="color:red;">Updating all facebook events...</span><br />
        <?php fbes_send_events($events); ?><br />
        <span style="color:red;">Events Calendar updated with current Facebook events.</span><br /><br />
        </div>
    <?php } ?>
<?php
}
?>