/**

  * Copyright (c) 2012-2015, jcabi.com

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met: 1) Redistributions of source code must retain the above

  * copyright notice, this list of conditions and the following

  * disclaimer. 2) Redistributions in binary form must reproduce the above

  * copyright notice, this list of conditions and the following

  * disclaimer in the documentation and/or other materials provided

  * with the distribution. 3) Neither the name of the jcabi.com nor

  * the names of its contributors may be used to endorse or promote

  * products derived from this software without specific prior written

  * permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT

  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL

  * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

  * OF THE POSSIBILITY OF SUCH DAMAGE.

  */

 package com.jcabi.odesk;

 import com.jcabi.aspects.Immutable;

 import com.jcabi.http.Request;

 import com.jcabi.http.Response;

 import com.jcabi.http.Wire;

 import com.jcabi.immutable.Array;

 import com.jcabi.log.Logger;

 import java.io.IOException;

 import java.io.InputStream;

 import java.net.URLDecoder;

 import java.util.AbstractMap;

 import java.util.Collection;

 import java.util.Map;

 import java.util.logging.Level;

 import javax.ws.rs.core.HttpHeaders;

 import lombok.EqualsAndHashCode;

 import lombok.ToString;

 import org.scribe.builder.ServiceBuilder;

 import org.scribe.builder.api.DefaultApi10a;

 import org.scribe.model.OAuthRequest;

 import org.scribe.model.Token;

 import org.scribe.model.Verb;

 import org.scribe.oauth.OAuthService;

 /**

  * OAuth Wire.

  *

  * @author Yegor Bugayenko (yegor@tpc2.com)

  * @version $Id: 6ce5bed47ba193556f50f986589b31f04b69fd51 $

  * @since 0.1

  */

 @Immutable

 @ToString

 @EqualsAndHashCode(of = { "origin", "key", "secret", "token", "tsecret" })

 public final class OAuthWire implements Wire {

     /**

      * Original wire.

      */

     private final transient Wire origin;

     /**

      * Application key.

      */

     private final transient String key;

     /**

      * Application secret.

      */

     private final transient String secret;

     /**

      * Access token.

      */

     private final transient String token;

     /**

      * Access token secret.

      */

     private final transient String tsecret;

     /**

      * Public ctor.

      * @param wire Original wire

      * @param akey App key

      * @param scrt App secret

      * @param tkn OAuth access token

      * @param tscrt OAuth access token secret part

      * @checkstyle ParameterNumber (10 lines)

      */

     public OAuthWire(final Wire wire, final String akey, final String scrt,

         final String tkn, final String tscrt) {

         this.origin = wire;

         this.key = akey;

         this.secret = scrt;

         this.token = tkn;

         this.tsecret = tscrt;

     }

     // @checkstyle ParameterNumber (10 lines)

     @Override

     public Response send(final Request req, final String home,

         final String method,

         final Collection<Map.Entry<String, String>> headers,

         final InputStream content, final int connect, final int read)

         throws IOException {

         final OAuthService service = new ServiceBuilder()

             .provider(OAuthWire.OdeskApi.class)

             .apiKey(this.key)

             .apiSecret(this.secret)

             .debugStream(Logger.stream(Level.FINE, this))

             .build();

         final String[] parts = home.split("\\?", 2);

         final OAuthRequest oauth = new OAuthRequest(

             Verb.valueOf(method), parts[0]

         );

         if (parts.length == 2) {

             for (final String pair : parts[1].split("&")) {

                 final String[] eqn = pair.split("=", 2);

                 final String value;

                 if (eqn.length == 2) {

                     value = URLDecoder.decode(eqn[1], "UTF-8");

                 } else {

                     value = "";

                 }

                 oauth.addQuerystringParameter(eqn[0], value);

             }

         }

         service.signRequest(new Token(this.token, this.tsecret), oauth);

         return this.origin.send(

             req, oauth.getCompleteUrl(), method,

             new Array<Map.Entry<String, String>>(headers).with(

                 new AbstractMap.SimpleEntry<String, String>(

                     HttpHeaders.AUTHORIZATION,

                     oauth.getHeaders().get(HttpHeaders.AUTHORIZATION)

                 )

             ),

             content,

             connect, read

         );

     }

     /**

      * Odesk provider.

      * @link https://github.com/fernandezpablo85/scribe-java/pull/438

      */

     public static final class OdeskApi extends DefaultApi10a {

         @Override

         public String getAccessTokenEndpoint() {

             return "https://www.odesk.com/api/auth/v1/oauth/token/access";

         }

         @Override

         public String getAuthorizationUrl(final Token tkn) {

             return String.format(

                 "https://www.odesk.com/services/api/auth?oauth_token=%s",

                 tkn.getToken()

             );

         }

         @Override

         public String getRequestTokenEndpoint() {

             return "https://www.odesk.com/api/auth/v1/oauth/token/request";

         }

     }

 }