Bison Media JSON Feed Template

json-feed-bison-media.php

<?php
/**
 * JSON Feed Template for displaying JSON Posts feed.
 *
 */

$callback = trim(esc_html(get_query_var('callback')));
$charset  = get_option('charset');

query_posts( array( 'post_type' => 'live_video' ) );
if ( have_posts() ) {
	global $wp_query;
	$query_array = $wp_query->query;

	// Make sure query args are always in the same order
	ksort( $query_array );

	$json = array();

	while ( have_posts() ) {
		the_post();
		$id = (int) $post->ID;

		$alert = get_post_meta($id, 'alert', true); //Push Notification Text
		//Start Time
		$start_time_value = get_post_meta($id, 'start-time', true);
			$str_start_time = strtotime($start_time_value);
			$start_time = gmdate('Y-m-d H:i:s', $str_start_time);
		//End Time
		$end_time_value = get_post_meta($id, 'end-time', true);
			$str_end_time = strtotime($end_time_value);
			$end_time = gmdate('Y-m-d H:i:s', $str_end_time);
		//Current Time
		date_default_timezone_set("America/Chicago");
			$current_time = date( 'Y-m-d H:i:s', current_time( 'timestamp', 0 ) );
			$str_current_time = strtotime( $current_time ) - 18000; //convert to UTC timestamp minus 5 hour difference in seconds
		//Duration
		$event_duration = human_time_diff( $str_start_time, $str_end_time );

		//Event Status
		if ( $str_start_time < $str_current_time and $str_end_time > $str_current_time ) {
			$time_compare = 'Event is in progress.';
		} elseif ( $str_start_time > $str_current_time and $str_end_time > $str_current_time ) {
			$time_compare = 'Event is upcoming.';
		} elseif ( $str_current_time > $str_start_time and $str_current_time > $str_end_time ) {
			$time_compare = 'Event is over.';
		} else {
			$time_compare = 'Error comparing times.';
		}

		//IsLive?
		if ( $str_start_time < $str_current_time and $str_end_time > $str_current_time ) {
			$islive = 1;
		} else {
			$islive = 0;
		}

		//JSON ARRAY
		$single = array(
			'id'         => $id ,
			'event'      => get_the_title() ,
			'post-date'  => get_the_date('Y-m-d H:i:s','','',false) ,
			'alert'   	 => $alert ,
			'start-time' => $start_time ,
				//'start-timestamp' => $str_start_time ,
			'end-time' => $end_time ,
				//'end-timestamp' => $str_end_time ,
			'current-time' => $current_time ,
				//'current-timestamp' => $str_current_time ,
			'event-duration' => $event_duration ,
			'event-status' => $time_compare ,
			'live'   => $islive,
			);

			//$custom_field_keys = get_post_custom_keys();
			//foreach ( $custom_field_keys as $key => $value ) {
			//	$valuet = trim($value);
			//	if ( '_' == $valuet{0} )
		//		continue;
		//		$single[$value] = get_post_meta($id, $value, true);
		//	} //End Custom Field Keys

		$json[] = $single; //begin json feed
	}

	$json = json_encode($json);

	nocache_headers();
	if (!empty($callback)) {
		header("Content-Type: application/x-javascript; charset={$charset}");
		echo "{$callback}({$json});";
	} else {
		header("Content-Type: application/json; charset={$charset}");
		echo $json;
	}

} else {
	status_header('404');
	wp_die("404 Not Found");
}