<?php
/**
 * Class NPROne
 *
 * @created      28.07.2019
 * @author       smiley <smiley@chillerlan.net>
 * @copyright    2019 smiley
 * @license      MIT
 *
 * @noinspection PhpUnused
 */
declare(strict_types=1);

namespace chillerlan\OAuth\Providers;

use chillerlan\OAuth\Core\{
	AuthenticatedUser, CSRFToken, OAuth2Provider, TokenInvalidate, TokenInvalidateTrait, TokenRefresh, UserInfo,
};
use function in_array, sprintf, strtolower;

/**
 * NPR API services (OAuth2)
 *
 * @link https://dev.npr.org
 * @link https://github.com/npr/npr-one-backend-proxy-php
 */
class NPROne extends OAuth2Provider implements CSRFToken, TokenRefresh, TokenInvalidate, UserInfo{
	use TokenInvalidateTrait;

	public const IDENTIFIER = 'NPRONE';

	public const SCOPE_IDENTITY_READONLY  = 'identity.readonly';
	public const SCOPE_IDENTITY_WRITE     = 'identity.write';
	public const SCOPE_LISTENING_READONLY = 'listening.readonly';
	public const SCOPE_LISTENING_WRITE    = 'listening.write';
	public const SCOPE_LOCALACTIVATION    = 'localactivation';

	public const DEFAULT_SCOPES = [
		self::SCOPE_IDENTITY_READONLY,
		self::SCOPE_LISTENING_READONLY,
	];

	protected string      $apiURL           = 'https://listening.api.npr.org';
	protected string      $authorizationURL = 'https://authorization.api.npr.org/v2/authorize';
	protected string      $accessTokenURL   = 'https://authorization.api.npr.org/v2/token';
	protected string      $revokeURL        = 'https://authorization.api.npr.org/v2/token/revoke';
	protected string|null $apiDocs          = 'https://dev.npr.org/api/';
	protected string|null $applicationURL   = 'https://dev.npr.org/console';

	/**
	 * Sets the API to work with ("listening" is set as default)
	 *
	 * @throws \chillerlan\OAuth\Providers\ProviderException
	 */
	public function setAPI(string $api):static{
		$api = strtolower($api);

		if(!in_array($api, ['identity', 'listening', 'station'], true)){
			throw new ProviderException(sprintf('invalid API: "%s"', $api));
		}

		$this->apiURL = sprintf('https://%s.api.npr.org', $api);

		return $this;
	}

	/** @codeCoverageIgnore */
	public function me():AuthenticatedUser{
		$json = $this->getMeResponseData('https://identity.api.npr.org/v2/user');

		$userdata = [
			'data'  => $json,
			'email' => $json['attributes']['email'],
		];

		return new AuthenticatedUser($userdata);
	}

}