<?php

namespace OAuth\Common\Service;

use OAuth\Common\Http\Uri\UriInterface;

/**
 * Defines methods common among all OAuth services.
 */
interface ServiceInterface
{
    /**
     * Sends an authenticated API request to the path provided.
     * If the path provided is not an absolute URI, the base API Uri (service-specific) will be used.
     *
     * @param string|UriInterface $path
     * @param string              $method       HTTP method
     * @param array               $body         Request body if applicable (an associative array will
     *                                          automatically be converted into a urlencoded body)
     * @param array               $extraHeaders Extra headers if applicable. These will override service-specific
     *                                          any defaults.
     *
     * @return string
     */
    public function request($path, $method = 'GET', $body = null, array $extraHeaders = array());

    /**
     * Returns the url to redirect to for authorization purposes.
     *
     * @param array $additionalParameters
     *
     * @return UriInterface
     */
    public function getAuthorizationUri(array $additionalParameters = array());

    /**
     * Returns the authorization API endpoint.
     *
     * @return UriInterface
     */
    public function getAuthorizationEndpoint();

    /**
     * Returns the access token API endpoint.
     *
     * @return UriInterface
     */
    public function getAccessTokenEndpoint();
}