<?php
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);
if (isset($_REQUEST['radius'])) $radius = filter_var($_REQUEST['radius'], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION);
$url = $APIurl . "/json/neareststops?lat=$lat&lon=$lon&limit=50";
$contents = json_decode(getPage($url));
debug(print_r($contents, true));
$stopNum = 0;
foreach ($contents as $row) {
        $stopNum++;
        if ($stopNum > $page_start && $stopNum <= $page_end) {
                $hotspot = Array();
                $hotspot['id'] = $row[0];
                $hotspot['title'] = $row[1];
                $hotspot['type'] = 0;
                $hotspot['lat'] = floor($row[2] * 1000000);
                $hotspot['lon'] = floor($row[3] * 1000000);
                $hotspot['distance'] = distance($row[2], $row[3], $_REQUEST['lat'], $_REQUEST['lon']);
                if (!isset($_REQUEST['radius']) || $hotspot['distance'] < $radius) {
                        $hotspot['actions'] = Array(
                                Array(
                                        "label" => 'View more trips/information',
                                        'uri' => 'http://bus.lambdacomplex.org/' . 'stop.php?stopid=' . $row[0]
                                )
                        );
                        $url = $APIurl . "/json/stoptrips?stop=" . $row[0] . "&time=" . midnight_seconds() . "&service_period=" . service_period() . "&limit=4&time_range=" . str(90 * 60);
                        $trips = json_decode(getPage($url));
                        debug(print_r($trips, true));
                        foreach ($trips as $key => $row) {
                                if ($key < 3) {
                                        $hotspot['line' . strval($key + 2) ] = $row[1][1] . ' @ ' . midnight_seconds_to_time($row[0]);
                                }
                        }
                        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 >= $max_results || sizeof($hotspot) < $max_page) {
        $output["morePages"] = false;
        $output["nextPageKey"] = null;
}
else {
        $output["morePages"] = true;
        $output["nextPageKey"] = $page_end;
}
echo json_encode($output);
?>