<?php

namespace AnyComment\Providers;

use Hybridauth\Adapter\OpenID;
use Hybridauth\Data\Collection;
use Hybridauth\Exception\UnexpectedApiResponseException;

/**
 * Class Steam is wrapper provided around original Steam provider from hybrid auth.
 *
 * @author Alexander Teshabaev <sasha.tesh@gmail.com>
 * @package AnyComment\Providers
 */
class Steam extends OpenID {
	/**
	 * {@inheritdoc}
	 */
	protected $openidIdentifier = 'https://steamcommunity.com/openid';

	/**
	 * @var string User profile URL template use in sprintf().
	 */
	protected $profileUrlTemplate = 'https://steamcommunity.com/profiles/%s/';

	/**
	 * {@inheritdoc}
	 */
	public function authenticateFinish() {
		parent::authenticateFinish();

		$userProfile = $this->storage->get( $this->providerId . '.user' );

		if ( !preg_match( '/\/(\d{1,})$/m', $userProfile->identifier, $matches ) ) {
			throw new UnexpectedApiResponseException( 'Provider API returned an unexpected response.' );
		}

		$userProfile->identifier = trim( $matches[1] );

		try {
			$apiKey = $this->config->filter( 'keys' )->get( 'secret' );

			// if api key is provided, we attempt to use steam web api
			if ( $apiKey ) {
				$result = $this->getUserProfileWebAPI( $apiKey, $userProfile->identifier );
			} else {
				$result = $this->getUserProfileLegacyAPI( $userProfile->identifier );
			}

			// fetch user profile
			foreach ( $result as $k => $v ) {
				$userProfile->$k = $v ?: $userProfile->$k;
			}
		} // these data are not mandatory, so keep it quite
		catch ( \Exception $e ) {
		}

		// store user profile
		$this->storage->set( $this->providerId . '.user', $userProfile );
	}

	/**
	 * Fetch user profile on Steam web API
	 *
	 * @return array User data.
	 */
	public function getUserProfileWebAPI( $apiKey, $steam64 ) {
		$apiUrl = 'http://api.steampowered.com/ISteamUser/GetPlayerSummaries/v0002/?key=' . $apiKey . '&steamids=' . $steam64;

		$response = $this->httpClient->request( $apiUrl );

		$data = json_decode( $response );

		$data = isset( $data->response->players[0] ) ? $data->response->players[0] : null;

		$data = new Collection( $data );

		$userProfile = [];

		$profileUrl = (string) $data->get( 'profileurl' );

		if ( empty( $profileUrl ) ) {
			$profileUrl = sprintf( $this->profileUrlTemplate, $steam64 );
		}

		$userProfile['displayName'] = (string) $data->get( 'personaname' );
		$userProfile['firstName']   = (string) $data->get( 'realname' );
		$userProfile['photoURL']    = (string) $data->get( 'avatarfull' );
		$userProfile['profileURL']  = $profileUrl;
		$userProfile['country']     = (string) $data->get( 'loccountrycode' );

		return $userProfile;
	}

	/**
	 * Fetch user profile on community API
	 *
	 * @param string $steam64 Steam ID, e.g. 76561198123452.
	 *
	 * @return array User data.
	 */
	public function getUserProfileLegacyAPI( $steam64 ) {
		libxml_use_internal_errors( false );

		$apiUrl = 'http://steamcommunity.com/profiles/' . $steam64 . '/?xml=1';

		$response = $this->httpClient->request( $apiUrl );

		$data = new \SimpleXMLElement( $response );

		$data = new Collection( $data );

		$userProfile = [];

		$profileUrl = (string) $data->get( 'customURL' );

		if ( empty( $profileUrl ) ) {
			$profileUrl = sprintf( $this->profileUrlTemplate, $steam64 );
		}

		$userProfile['displayName'] = (string) $data->get( 'steamID' );
		$userProfile['firstName']   = (string) $data->get( 'realname' );
		$userProfile['photoURL']    = (string) $data->get( 'avatarFull' );
		$userProfile['description'] = (string) $data->get( 'summary' );
		$userProfile['region']      = (string) $data->get( 'location' );
		$userProfile['profileURL']  = $profileUrl;

		return $userProfile;
	}
}