connorjburton/dvla-search

<?php
namespace DVLASearch\SDK\Clients;

use DVLASearch\SDK\Objects\Object;

class Client {
    const ENDPOINT = 'https://dvlasearch.appspot.com/%s?apikey=%s&licencePlate=%s';
    private $map = null;

    private $type = '';
    private $plate = '';
    private $key = 'DvlaSearchDemoAccount';

    public function __construct(string $key, string $type)
    {
        $arr = explode('\\', __NAMESPACE__);
            $arr[count($arr) - 1] = 'Objects\\';
        $namespace =  implode('\\', $arr);
        
        $this->map = [
            'DvlaSearch' => $namespace . 'Vehicle'::class,
            'MotHistory' => $namespace . 'Mot'::class,
            'TyreSearch' => $namespace . 'Tyres'::class,
        ];

        if($key) $this->key = $key;
        $this->type = $type;
    }
    
    private function toObject($data): Object
    {
        $name = $this->map[$this->type];
        return new $name($data, $this->key, $this->plate);
    }

    private function parse(): string
    {
        return sprintf($this::ENDPOINT, $this->type, $this->key, strtoupper(str_replace(' ', '', $this->plate)));
    }
    
    protected function query(string $plate): Object
    {
        if(!$plate) throw new Exception('Empty $plate given');
        $this->plate = $plate;
        
        $curl = curl_init();
        curl_setopt_array($curl, [
            CURLOPT_RETURNTRANSFER => 1,
            CURLOPT_URL => $this->parse()
        ]);
        
        $result = curl_exec($curl);

        if($result === false) throw new \Exception('cURL error (' . curl_errno($curl) . '): ' . curl_error($curl) . ' for ' . $this->parse());
        
        $result = json_decode($result);
        if(isset($result->error) && $result->error) throw new \Exception($result->message);

        return $this->toObject($result);
    }
}