';
		//print_r( $post_fields );

		//gmt time is canonical
		if( isset( $post_fields['post_date_gmt'] )){
			$post_fields['post_date']     = get_date_from_gmt( $post_fields['post_date_gmt'] );
		} elseif( isset( $post_fields['post_date'] )){
			$post_fields['post_date_gmt'] = get_gmt_from_date( $post_fields['post_date'] );
		}

		if( ! $post_fields['post_name'] ){
			//calculate from title
			$post_fields['post_name'] = sanitize_title_with_dashes( $post_fields['post_title'], '', 'save' );
		}
	}

	function preserve_fields_when_updating( $fields_to_preserve ){

		//auto_date_gmt is not to be changed on by the user
		//so we do not return it from the afg dialog
		//and it does not need to be updated

		$fields_to_preserve[] = 'auto_date_gmt';

		return $fields_to_preserve;
	}

	//
	// Backend function for ajax calls
	//
	function autoschedule(){

		$post_id = false;

		if( isset( $_REQUEST['post_id'] ) && 0 < absint( $_REQUEST['post_id'] )){
			$post_id = absint( $_REQUEST['post_id'] );
		}

		$gmt = isset( $_REQUEST['gmt'] ) ? ('true' == $_REQUEST['gmt']) : false;

		echo date( 'D M j Y H:i:00', $this->get_autoschedule_timestamp( $post_id, $gmt ) );
		die();
	}

	static function get_local_datetime( $gmt_datetime ){

		$offset = (int) (60 * ((float) get_option('gmt_offset', 0)));//offset might be a float value
		if( $offset > 0){
			$offset = '+'.$offset. ' minutes';
		} else {
			$offset = '-'.$offset. ' minutes';
		}
		return $gmt_datetime->modify( $offset );
	}

	function get_autoschedule_timestamp( $post_id = false, $gmt = true ){

		if( $post_id ){
			//get from meta
			$date = get_post_meta( $post_id, AFG_META_PREFIX . 'auto_date_gmt', true );
			if( $date ){
				if( $gmt ){
					//echo "GMT: [$gmt]".$date;
					return strtotime( $date );
				}
				//echo "Not GMT for: ".$date;
				return self::get_local_datetime( new DateTime( $date ) )->format('U');
			} //else {
			//	echo 'Found no meta ['.AFG_META_PREFIX . 'auto_date_gmt'. '] for '. $post_id;
			//}
		}

		//if post_id not specified or there is no meta for specified post, calculate a new date
		$opts = array(
				'period'    => intval( $this->settings['schedule_period_hours'] ),
				'startTime' => intval( $this->settings['schedule_start_time'] ),
				'endTime'   => intval( $this->settings['schedule_end_time'] )
		);

		$params = array(
				'numberposts'  => 1,
				'orderby'      => 'post_date_gmt',
				'order'        => 'DESC',
				'post_type'    => $this->meta->post_type_name,
				'post_status'  => array('private','draft','pending','future','publish'),
		);
		$posts = get_posts( $params );

		//echo '
'.print_r($posts, true).'
';

		if( ! isset( $posts[0] )) {
			$lastPostDate = 0;
		} else {
			$lastPostDate = strtotime( $posts[0]->post_date );
		}
		$currentTime = strtotime( current_time('mysql') );
		//echo '
'.print_r($currentTime, true).'

';

		$startingDate = max( $lastPostDate, $currentTime );
		//echo 'Starting date:
'.print_r(date('D M j Y H:i:s',$startingDate), true).'

';

		//randomize minutes
		$randMins   = rand(0, 30) - 15;

		//calculate new time
		$datetime = $startingDate + $opts['period'] * 60 + $randMins;

		//normalize new timestamp to minutes
		$mins = $this->get_mins_from_string( date('0:G:i', $datetime )); //G returns hours in 0-23 range

		//adjust time if it does not fit within the hours specified by startTime - endTime
		//echo $mins .' - ' . $randPeriod . ' - ' . $randMins . ' - '.date('D M j Y H:i:s', $datetime);

		$offset = (int) (60 * ((float) get_option('gmt_offset', 0)));//offset might be a float value

		if( $mins > $opts['endTime'] ) {
			//Too late! Start from next day, and start from startTime + random minutes
			//echo 'Too late for '.$opts['endTime'].': 
'.date('D M j Y H:i:s', $datetime).'
';

			$datetime += 60 * 24 * 60; // add a day
			$time = $this->get_time_string( $opts['startTime']*60 + $randMins - $offset);

			$datetime = strtotime( date('Y-M-d', $datetime). ' ' . $time );
			//echo '2) ' . date('D M j Y H:i:s', $datetime) . '; ';

		} elseif( $mins < $opts['startTime'] ) {
			//Too early! Start from startTime + some random minutes
			//echo 'Too early:  
'.date('D M j Y H:i:s', $mins - $offset).'
';


			$day  = strtotime( date('Y-M-d', $datetime) );
			$time = $opts['startTime']*60 + $randMins - $offset;
			$datetime = $day + $time;

		} else {
			$datetime -= ($offset * 60);
		}

		if( $gmt ){
			return $datetime;
		} else {
			//echo '5) [' . date('Y-M-d H:i:s', $datetime). '], [@' . $datetime . ']; ';
			return self::get_local_datetime( new DateTime( '@'.$datetime ) )->format('U');
		}
	}

	//get the number of minutes in a string formatted like 1:23:45 (day:hours:mins)
	//Credits: http://www.nutt.net/tag/auto-future-date/
	protected function get_mins_from_string( $str ) {

		$ray = preg_split('/:|\./', $str);
		if( count( $ray ) > 3 ) {
			//drop all elements beyond third
			$ray = array_slice( $ray, count( $ray ) - 3 );
		}
		while ( count( $ray ) < 3 ) {
			//pad front with zeros
			array_unshift( $ray, 0 );
		}

		return intval( $ray[2] ) + (60 * intval( $ray[1] )) + (60 * 24 * intval( $ray[0] ));
	}

	protected function get_time_string( $num ) {

		$num = intval( $num );
		$d = floor($num / 1440);
		$h = floor(($num - $d * 1440) / 60);
		$m = $num - ($d * 1440) - ($h * 60);

		//return $d.':'.str_pad($h, 2, '0', STR_PAD_LEFT).':'.str_pad($m, 2, '0', STR_PAD_LEFT);

		//ignore days:
		return str_pad($h, 2, '0', STR_PAD_LEFT).':'.str_pad($m, 2, '0', STR_PAD_LEFT).':00';
	}

	//default implementation of how the element will be represented on the front-end
	function front_html( array $review_data ){

		if( empty( $review_data )) return;

		$element_name = $this->name;

		//although element 'knows' how to pick the data needed to present itself on the front,
		//it is advisable to abstract away from it
		$value = $this->meta->pick_value( $review_data, 'post_status' );

		if( ! $value ) return;

		$result = '
';

		if( $this->settings['title'] ){
			$result .= apply_filters("afg_front__html_{$element_name}_title", '
'.esc_html( $this->settings['title'] ).'
');
		}

		$result .= apply_filters("afg_front__html_{$element_name}_content", esc_html( $this->statuses[ $value ][0] ));

		$result .= '
';

		echo apply_filters("afg_front__html_{$element_name}_result", $result );
	}
}

endif;

/* EOF */