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<?php
namespace App\Jobs;
use DB;
use Log;
use Quartz;
use p3k\Multipart;
use App\Jobs\Job;
use Illuminate\Contracts\Bus\SelfHandling;
use Illuminate\Contracts\Queue\ShouldQueue;
use DateTime, DateTimeZone;
class TripComplete extends Job implements SelfHandling, ShouldQueue
{
private $_dbid;
private $_data;
public function __construct($dbid, $data) {
$this->_dbid = $dbid;
$this->_data = $data;
}
public function handle() {
// echo "Job Data\n";
// echo json_encode($this->_data)."\n";
if(!is_array($this->_data)) return;
$db = DB::table('databases')->where('id','=',$this->_dbid)->first();
Log::info("Starting job for ".$db->name);
Log::debug(json_encode($this->_data));
if(!$db->micropub_endpoint) {
Log::info('No micropub endpoint configured for database ' . $db->name);
return;
}
$qz = new Quartz\DB(env('STORAGE_DIR').$db->name, 'r');
// Load the data from the start and end times
$start = new DateTime($this->_data['properties']['start']);
$end = new DateTime($this->_data['properties']['end']);
$results = $qz->queryRange($start, $end);
$features = [];
foreach($results as $id=>$record) {
// Don't include app action tracking data
if(!property_exists($record->data->properties, 'action')) {
// Ignore locations with accuracy worse than 5000m
if(property_exists($record->data->properties, 'horizontal_accuracy') && $record->data->properties->horizontal_accuracy <= 5000) {
$record->data->properties = array_filter((array)$record->data->properties, function($k){
// Remove some of the app-specific tracking keys from each record
return !in_array($k, ['locations_in_payload','desired_accuracy','significant_change','pauses','deferred']);
}, ARRAY_FILTER_USE_KEY);
$features[] = $record->data;
}
}
}
// Build the GeoJSON for this trip
$geojson = [
'type' => 'FeatureCollection',
'features' => $features
];
$file_path = tempnam(sys_get_temp_dir(), 'compass');
file_put_contents($file_path, json_encode($geojson));
// If there are no start/end coordinates in the request, use the first and last coordinates
if(count($features)) {
if(!array_key_exists('start-coordinates', $this->_data['properties'])) {
$this->_data['properties']['start-coordinates'] = $features[0]->geometry->coordinates;
}
if(!array_key_exists('end-coordinates', $this->_data['properties'])) {
$this->_data['properties']['end-coordinates'] = $features[count($features)-1]->geometry->coordinates;
}
}
$startAdr = false;
if(array_key_exists('start-coordinates', $this->_data['properties'])) {
// Reverse geocode the start and end location to get an h-adr
$startAdr = [
'type' => 'h-adr',
'properties' => [
'latitude' => $this->_data['properties']['start-coordinates'][1],
'longitude' => $this->_data['properties']['start-coordinates'][0],
]
];
Log::info('Looking up start location');
$start = self::geocode($this->_data['properties']['start-coordinates'][1], $this->_data['properties']['start-coordinates'][0]);
if($start) {
$startAdr['properties']['locality'] = $start->locality;
$startAdr['properties']['region'] = $start->region;
$startAdr['properties']['country'] = $start->country;
Log::info('Found start: '.$start->full_name.' '.$start->timezone);
}
} else {
$start = false;
}
$endAdr = false;
if(array_key_exists('end-coordinates', $this->_data['properties'])) {
$endAdr = [
'type' => 'h-adr',
'properties' => [
'latitude' => $this->_data['properties']['end-coordinates'][1],
'longitude' => $this->_data['properties']['end-coordinates'][0],
]
];
Log::info('Looking up end location');
$end = self::geocode($this->_data['properties']['end-coordinates'][1], $this->_data['properties']['end-coordinates'][0]);
if($end) {
$endAdr['properties']['locality'] = $end->locality;
$endAdr['properties']['region'] = $end->region;
$endAdr['properties']['country'] = $end->country;
Log::info('Found end: '.$end->full_name.' '.$end->timezone);
}
} else {
$end = false;
}
// Set the timezone of the dates based on the location
$startDate = new DateTime($this->_data['properties']['start']);
if($start && $start->timezone) {
$startDate->setTimeZone(new DateTimeZone($start->timezone));
}
$endDate = new DateTime($this->_data['properties']['end']);
if($end && $end->timezone) {
$endDate->setTimeZone(new DateTimeZone($end->timezone));
}
$params = [
'h' => 'entry',
'published' => $endDate->format('c'),
'trip' => [
'type' => 'h-trip',
'properties' => [
'mode-of-transport' => $this->_data['properties']['mode'],
'start' => $startDate->format('c'),
'end' => $endDate->format('c'),
'route' => 'route.json'
// TODO: avgpace for runs
// TODO: avgspeed for bike rides
// TODO: avg heart rate if available
]
]
];
if($startAdr) {
$params['trip']['properties']['start-location'] = $startAdr;
}
if($endAdr) {
$params['trip']['properties']['end-location'] = $endAdr;
}
if(array_key_exists('distance', $this->_data['properties'])) {
$params['trip']['properties']['distance'] = [
'type' => 'h-measure',
'properties' => [
'num' => round($this->_data['properties']['distance']),
'unit' => 'meter'
]
];
}
if(array_key_exists('duration', $this->_data['properties'])) {
$params['trip']['properties']['duration'] = [
'type' => 'h-measure',
'properties' => [
'num' => round($this->_data['properties']['duration']),
'unit' => 'second'
]
];
}
if(array_key_exists('cost', $this->_data['properties'])) {
$params['trip']['properties']['cost'] = [
'type' => 'h-measure',
'properties' => [
'num' => round($this->_data['properties']['cost'], 2),
'unit' => 'USD'
]
];
}
// If there is trip data, recalculate the distance and duration based on the actual data
if(count($features)) {
$startTime = strtotime($features[0]->properties['timestamp']);
$endTime = strtotime($features[count($features)-1]->properties['timestamp']);
$duration = $endTime - $startTime;
$params['trip']['properties']['duration']['type'] = 'h-measure';
$params['trip']['properties']['duration']['properties']['num'] = $duration;
$params['trip']['properties']['duration']['properties']['unit'] = 'second';
Log::debug("Overriding duration to $duration");
$points = array_map(function($f){
return $f->geometry->coordinates;
}, $features);
$simple = $this->_ramerDouglasPeucker($points, 0.0001);
$last = false;
$distance = 0;
foreach($simple as $p) {
if($last) {
$distance += $this->_gc_distance($p[1], $p[0], $last[1], $last[0]);
}
$last = $p;
}
if($distance) {
$params['trip']['properties']['distance']['type'] = 'h-measure';
$params['trip']['properties']['distance']['properties']['num'] = $distance;
$params['trip']['properties']['distance']['properties']['unit'] = 'meter';
Log::debug("Overriding distance to $distance");
}
}
// echo "Micropub Params\n";
// print_r($params);
$multipart = new Multipart();
$multipart->addArray($params);
$multipart->addFile('route.json', $file_path, 'application/json');
$httpheaders = [
'Authorization: Bearer ' . $db->micropub_token,
'Content-type: ' . $multipart->contentType()
];
Log::info('Sending to the Micropub endpoint: '.$db->micropub_endpoint);
// Post to the Micropub endpoint
$ch = curl_init($db->micropub_endpoint);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, $httpheaders);
curl_setopt($ch, CURLOPT_POSTFIELDS, $multipart->data());
curl_setopt($ch, CURLOPT_HEADER, true);
$response = curl_exec($ch);
Log::info("Done!");
Log::info($response);
// echo "========\n";
// echo $response."\n========\n";
//
// echo "\n";
}
public static function geocode($lat, $lng) {
$ch = curl_init(env('ATLAS_BASE').'api/geocode?latitude='.$lat.'&longitude='.$lng);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 8);
$response = curl_exec($ch);
if($response) {
return json_decode($response);
}
}
// TODO: move this to a library p3k/Geo
// http://www.loughrigg.org/rdp/
//The author has placed this work in the Public Domain, thereby relinquishing all copyrights.
//You may use, modify, republish, sell or give away this work without prior consent.
//This implementation comes with no warranty or guarantee of fitness for any purpose.
//=========================================================================
//An implementation of the Ramer-Douglas-Peucker algorithm for reducing
//the number of points on a polyline
//see http://en.wikipedia.org/wiki/Ramer%E2%80%93Douglas%E2%80%93Peucker_algorithm
//=========================================================================
//Finds the perpendicular distance from a point to a straight line.
//The coordinates of the point are specified as $ptX and $ptY.
//The line passes through points l1 and l2, specified respectively with their
//coordinates $l1x and $l1y, and $l2x and $l2y
public function _perpendicularDistance($ptX, $ptY, $l1x, $l1y, $l2x, $l2y)
{
$result = 0;
if ($l2x == $l1x)
{
//vertical lines - treat this case specially to avoid divide by zero
$result = abs($ptX - $l2x);
}
else
{
$slope = (($l2y-$l1y) / ($l2x-$l1x));
$passThroughY = (0-$l1x)*$slope + $l1y;
$result = (abs(($slope * $ptX) - $ptY + $passThroughY)) / (sqrt($slope*$slope + 1));
}
return $result;
}
//RamerDouglasPeucker
//Reduces the number of points on a polyline by removing those that are closer to the line
//than the distance $epsilon.
//The polyline is provided as an array of arrays, where each internal array is one point on the polyline,
//specified by easting (x-coordinate) with key "0" and northing (y-coordinate) with key "1".
//It is assumed that the coordinates and distance $epsilon are given in the same units.
//The result is returned as an array in a similar format.
//Each point returned in the result array will retain all its original data, including its E and N
//values along with any others.
public function _ramerDouglasPeucker($pointList, $epsilon)
{
if(count($pointList) == 0)
return array();
// Find the point with the maximum distance
$dmax = 0;
$index = 0;
$totalPoints = count($pointList);
for ($i = 1; $i < ($totalPoints - 1); $i++)
{
$d = $this->_perpendicularDistance($pointList[$i][0], $pointList[$i][1],
$pointList[0][0], $pointList[0][1],
$pointList[$totalPoints-1][0], $pointList[$totalPoints-1][1]);
if ($d > $dmax)
{
$index = $i;
$dmax = $d;
}
}
$resultList = array();
// If max distance is greater than epsilon, recursively simplify
if ($dmax >= $epsilon)
{
// Recursive call
$recResults1 = $this->_ramerDouglasPeucker(array_slice($pointList, 0, $index + 1), $epsilon);
$recResults2 = $this->_ramerDouglasPeucker(array_slice($pointList, $index, $totalPoints - $index), $epsilon);
// Build the result list
$resultList = array_merge(array_slice($recResults1, 0, count($recResults1) - 1),
array_slice($recResults2, 0, count($recResults2)));
}
else
{
$resultList = array($pointList[0], $pointList[$totalPoints-1]);
}
// Return the result
return $resultList;
}
function _gc_distance($lat1, $lng1, $lat2, $lng2) {
return ( 6378100 * acos( cos( deg2rad($lat1) ) * cos( deg2rad($lat2) ) * cos( deg2rad($lng2) - deg2rad($lng1) ) + sin( deg2rad($lat1) ) * sin( deg2rad($lat2) ) ) );
}
}