/*
 * Copyright (c) 2014.
 *
 * BaasBox - info-at-baasbox.com
 *
 * 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.
 */

package com.baasbox.service.sociallogin;


import org.scribe.builder.api.DefaultApi20;
import org.scribe.model.OAuthConfig;
import org.scribe.model.Verb;
import org.scribe.utils.OAuthEncoder;

import com.baasbox.service.sociallogin.extractors.GithubTokenExtractor;

public class GithubApi extends DefaultApi20 
{

	private static final String AUTHORIZE_URL = "https://github.com/login/oauth/authorize?client_id=%s";
	private static final String SCOPED_AUTHORIZE_URL = AUTHORIZE_URL+ "&scope=%s";

	@Override
	public String getAccessTokenEndpoint() 
	{
		return "https://github.com/login/oauth/access_token";
	}

	@Override
	public String getAuthorizationUrl(OAuthConfig config) 
	{
		// Append scope if present
		if (config.hasScope()) 
		{
			return String.format(SCOPED_AUTHORIZE_URL, config.getApiKey(),
									OAuthEncoder.encode(config.getCallback()),
									OAuthEncoder.encode(config.getScope()));
		} 
		else 
		{
			return String.format(AUTHORIZE_URL, config.getApiKey(),
									OAuthEncoder.encode(config.getCallback()));
		}
	}

	@Override
	public Verb getAccessTokenVerb()
	{
		return Verb.POST;
	}

	@Override
	public GithubTokenExtractor getAccessTokenExtractor() 
	{
		return new GithubTokenExtractor();
	}
}