<?php
/**
 * Created by PhpStorm.
 * User: k
 * Date: 30.06.2018
 * Time: 18:29
 */

namespace App\Paper;


class Traficar
{

    private $homeCoords = ['lat' => 54.417475, 'lng' => 18.481913];
    private $staticMapsKey = 'AIzaSyBPb9wXT2BcK8EH_3FFWVc2MLuDprj7YXw';

    /**
     * @param $lat1
     * @param $lon1
     * @param $lat2
     * @param $lon2
     * @return float zwracana jest odległość w kilometrach
     */
    private function distance($lat1, $lon1, $lat2, $lon2)
    {

        $theta = $lon1 - $lon2;
        $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) + cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
        $dist = acos($dist);
        $dist = rad2deg($dist);
        $miles = $dist * 60 * 1.1515;
        return ($miles * 1.609344);
    }


    public function nearestCar()
    {
        $trafcarData = json_decode(file_get_contents('https://api.traficar.pl/eaw-rest-api/car?shapeId=5'), 1);
        $closestCar = [];
        $closestDistance = 1000;
        foreach ($trafcarData['cars'] as $car) {

            $distance = $this->distance($this->homeCoords['lat'], $this->homeCoords['lng'], $car['latitude'], $car['longitude']);
            if ($distance < $closestDistance) {
                $closestDistance = $distance;
                $closestCar = $car;
            }
        }

//        $imgNoKey = "https://maps.googleapis.com/maps/api/staticmap?center=" . $latHome . "," . $lngHome . "&size=300x300&maptype=roadmap&format=png&visual_refresh=true&markers=size:mid%7Ccolor:0x000000%7C" . $closestCar['latitude'] . "," . $closestCar['longitude'];
//        $img = "https://maps.googleapis.com/maps/api/staticmap?center=" . $this->homeCoords['lat'] . "," . $this->homeCoords['lng'] . "&size=300x300&maptype=roadmap&format=png&visual_refresh=true&markers=size:mid%7Ccolor:0x000000%7C" . $closestCar['latitude'] . "," . $closestCar['longitude'] . '&key=' . $this->staticMapsKey;
//        $tmpFile = storage_path() . '/traficar_map.png';
//        file_put_contents($tmpFile, file_get_contents($img));


        return ['car' => $closestCar, 'distance' => round($closestDistance, 2),];
//            'imageName' => $tmpFile];
    }
}