<?php

namespace Bmatovu\OAuthNegotiator\GrantTypes;

use GuzzleHttp\ClientInterface;

/**
 * Class RefreshToken.
 */
class RefreshToken implements GrantTypeInterface
{
	/**
	 * The token endpoint client.
	 *
	 * @var \GuzzleHttp\ClientInterface
	 */
	private $client;

	/**
	 * Configuration settings.
	 *
	 * @var array
	 */
	private $config;


	/**
	 * Constructor.
	 *
	 * @param \GuzzleHttp\ClientInterface $client
	 * @param array                       $config
	 *
	 * @throws \InvalidArgumentException
	 */
	public function __construct(ClientInterface $client, array $config)
	{
		$this->client = $client;

		$required = ['token_uri', 'client_id', 'client_secret'];

		if ($missing = missing_keys($required, $config)) {
		    $message = 'Parameters: '.implode(', ', $missing).' are required.';

		    throw new \InvalidArgumentException($message, 0);
		}

		$this->config = array_merge([
		    'scope' => '',
		], $config);
	}


	/**
	 * {@inheritdoc}
	 *
	 * @throws \GuzzleHttp\Exception\GuzzleException
	 */
	public function getToken($refreshToken = null)
	{
		$response = $this->client->request('POST', $this->config['token_uri'], [
		    'headers' => [
		        'Accept'        => 'application/json',
		        'Content-Type'  => 'application/json',
		        'Authorization' => 'Basic '.base64_encode($this->config['client_id'].':'.$this->config['client_secret']),
		    ],
		    'json' => [
		        'grant_type'    => 'refresh_token',
		        'refresh_token' => $refreshToken,
		    ],
		]);

		return json_decode($response->getBody(), true);
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODI4NjM0MDA2Mjc0MDQxOCAxNTIwOTk0Njk1OTAzODI5IDc3NzE2MzU0MzExNDIzMDk=