web-panel/app/ParkingLot.php

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;
use Google\Cloud\Firestore\FirestoreClient;

class ParkingLot extends Model
{
    protected $fillable = [ 'firebase_id', 'stall_coordinates', 'reference_image', 'number_of_columns', 'name', 'ref_coords' ];

    public function get_coordinates(){
        return json_decode( $this->stall_coordinates );
    }

    public function set_coordinates( $coordinates ){
        $this->stall_coordinates = json_encode( $coordinates );
        $this->save();
    }

    public static function getFB(){
        $db = new FirestoreClient();

        $documents = $db->collection('lots')->documents();
        $docarr = [];
        foreach( $documents as $doc ){
            if ( $doc->exists() ){
                array_push($docarr, ['id' => $doc->id(), 'data'=>$db->collection('lots')->document($doc->id())->collection('info')->document('lotInfo')->snapshot()->data()]);
            }
        };

        return $docarr;
    }

    public static function getFBbyID($id){
        $db = new FirestoreClient();

        $documents = $db->collection('lots')->documents();
        foreach( $documents as $doc ){
            if ( $doc->exists() && $doc->id() === (string) "Lot".$id ){
                return ['id' => $doc->id(), 'data'=>$db->collection('lots')->document($doc->id())->collection('info')->document('lotInfo')->snapshot()->data()];
            }
        };

        return null;
    }
}