<?php
include ('include/common.inc.php');
$output = Array();
$output['hotspots'] = Array();
$output['layer'] = "canberrabusstops";
$max_page = 10;
$max_results = 50;
$page_start = 0 + filter_var($_REQUEST['pageKey'], FILTER_SANITIZE_NUMBER_INT);
$page_end = $max_page + filter_var($_REQUEST['pageKey'], FILTER_SANITIZE_NUMBER_INT);
$lat = filter_var($_REQUEST['lat'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
$lon = filter_var($_REQUEST['lon'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
$max_distance = filter_var($_REQUEST['radius'], FILTER_SANITIZE_NUMBER_INT);
$contents = getNearbyStops($lat, $lon, 50, $max_distance);
$stopNum = 0;
foreach ($contents as $stop) {
        $stopNum++;
        if ($stopNum > $page_start && $stopNum <= $page_end) {
                $hotspot = Array();
                $hotspot['id'] = $stop['stop_id'];
                $hotspot['title'] = $stop['stop_name'];
                $hotspot['type'] = 0;
                $hotspot['lat'] = floor($stop['stop_lat'] * 1000000);
                $hotspot['lon'] = floor($stop['stop_lon'] * 1000000);
                $hotspot['distance'] = floor($stop['distance']);
                $hotspot['attribution'] = "ACTION Buses";
                $hotspot['actions'] = Array(
                        Array(
                                "label" => 'View more trips/information',
                                'uri' => 'http://bus.lambdacomplex.org/' . 'stop.php?stopid=' . $stop['stop_id']
                        )
                );
                $trips = getStopTripsWithTimes($stop['stop_id'], "", "", "", 3);
                foreach ($trips as $key => $row) {
                        if ($key < 3) {
                                $hotspot['line' . strval($key + 2) ] = $row['route_short_name'] . ' ' . $row['route_long_name'] . ' @ ' . $row['arrival_time'];
                        }
                }
                if (sizeof($trips) == 0) $hotspot['line2'] = 'No trips in the near future.';
                $output['hotspots'][] = $hotspot;
        }
}
if (sizeof($hotspot) > 0) {
        $output['errorString'] = 'ok';
        $output['errorCode'] = 0;
}
else {
        $output['errorString'] = 'no results, try increasing range';
        $output['errorCode'] = 21;
}
if ($page_end >= $max_results || sizeof($contents) < $page_start+$max_page) {
        $output["morePages"] = false;
        $output["nextPageKey"] = null;
}
else {
        $output["morePages"] = true;
        $output["nextPageKey"] = $page_end;
}
echo json_encode($output);
?>