<?php namespace libs\oauth2;

    /**
     * Copyright 2015 OpenStack Foundation
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     * http://www.apache.org/licenses/LICENSE-2.0
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     **/


/**
 * Class OAuth2WWWAuthenticateErrorResponse
 * http://tools.ietf.org/html/rfc6750#section-3
 * @package oauth2\responses
 */
class OAuth2WWWAuthenticateErrorResponse extends OAuth2DirectResponse
{

    private $realm;
    private $error;
    private $error_description;
    private $scope;
    private $http_error;

    public function __construct($realm, $error, $error_description, $scope, $http_error)
    {
        parent::__construct($http_error, self::DirectResponseContentType);
        $this->realm = $realm;
        $this->error = $error;
        $this->error_description = $error_description;
        $this->scope = $scope;
        $this->http_error = $http_error;
    }

    public function getWWWAuthenticateHeaderValue()
    {
        $value = sprintf('Bearer realm="%s"', $this->realm);
        $value = $value . sprintf(', error="%s"', $this->error);
        $value = $value . sprintf(', error_description="%s"', $this->error_description);
        if (!is_null($this->scope)) {
            $value = $value . sprintf(', scope="%s"', $this->scope);
        }

        return $value;
    }


    public function getContent()
    {
        $content = array(
            'error' => $this->error,
            'error_description' => $this->error_description
        );
        if (!is_null($this->scope)) {
            $content['scope'] = $this->scope;
        }

        return $content;
    }

    public function getType()
    {
        return null;
    }
}