129 lines
3.7 KiB
PHP
129 lines
3.7 KiB
PHP
<?php
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namespace App\Service;
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use GuzzleHttp\Client as GuzzleClient;
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use CrEOF\Spatial\PHP\Types\Geometry\Point;
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use Doctrine\ORM\EntityManagerInterface;
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class MapTools
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{
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const URL_DISTANCE_MATRIX = 'https://maps.googleapis.com/maps/api/distancematrix/json';
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// entity manager
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protected $em;
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// google maps api key
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protected $gmaps_api_key;
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public function __construct(EntityManagerInterface $em, $gmaps_api_key)
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{
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$this->em = $em;
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$this->gmaps_api_key = $gmaps_api_key;
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}
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protected function mapGetDistances(Point $point, $outlets)
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{
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$client = new GuzzleClient();
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// origins
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$origins_value = $point->getLatitude() . ',' . $point->getLongitude();
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// destinations
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$dests = [];
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foreach ($outlets as $outlet)
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{
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$coord = $outlet->getCoordinates();
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$dests[] = round($coord->getLatitude(),5) . ',' . round($point->getLongitude(), 5);
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}
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$dests_value = implode('|', $dests);
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// google maps url
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$maps_url = self::URL_DISTANCE_MATRIX;
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// parameters
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$gmaps_params = [
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'origins' => $origins_value,
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'destinations' => $dests_value,
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];
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//error_log(print_r($gmaps_params, true));
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// query google maps api
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$res = $client->request('GET', $maps_url, ['query' => $gmaps_params]);
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return $res->getBody();
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}
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public function getClosestOutlets(Point $point, $limit, $time = false)
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{
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// get closest outlets based on st_distance function from db
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$query = $this->em->createQuery('SELECT o, st_distance(o.coordinates, point(:lng, :lat)) as dist FROM App\Entity\Outlet o' . ($time ? ' WHERE :time BETWEEN o.time_open AND o.time_close' : '') . ' ORDER BY dist')
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->setParameter('lat', $point->getLatitude())
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->setParameter('lng', $point->getLongitude());
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if ($time) {
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$query->setParameter('time', $time);
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}
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$query->setMaxResults($limit);
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// error_log($query->getSql());
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$result = $query->getResult();
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$outlets = [];
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$final_data = [];
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foreach ($result as $row)
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{
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//error_log($row[0]->getName() . ' - ' . $row['dist']);
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$outlets[] = $row[0];
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$final_data[] = [
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'outlet' => $row[0],
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'db_distance' => $row['dist'],
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'distance' => 0,
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'duration' => 0,
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];
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}
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// get actual distance details with eta from google maps api
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$raw_res = $this->mapGetDistances($point, $outlets);
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$res = json_decode($raw_res, true);
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//error_log(print_r($res, true));
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// check if status is ok
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if ($res['status'] != 'OK')
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{
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return $final_data;
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// error_log('status not ok');
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}
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// check that the elements array is there
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if (!isset($res['rows'][0]['elements']))
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{
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// error_log('no elements');
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return $final_data;
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}
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foreach($res['rows'][0]['elements'] as $index => $gm_row)
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{
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// check status
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if (isset($gm_row['status']) && $gm_row['status'] != 'OK')
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{
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// error_log('element row status not ok');
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continue;
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}
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// set distance
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if (isset($gm_row['distance']['value']))
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$final_data[$index]['distance'] = $gm_row['distance']['value'];
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// set duration
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if (isset($gm_row['duration']['value']))
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$final_data[$index]['duration'] = $gm_row['duration']['value'];
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}
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return $final_data;
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}
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}
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