/**

  * Copyright (c) 2013-2017, 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.github;

 import com.jcabi.aspects.Immutable;

 import com.jcabi.aspects.Loggable;

 import com.jcabi.http.Request;

 import com.jcabi.http.response.JsonResponse;

 import com.jcabi.http.response.RestResponse;

 import java.io.IOException;

 import java.net.HttpURLConnection;

 import java.util.Map;

 import javax.json.Json;

 import javax.json.JsonObject;

 import javax.json.JsonObjectBuilder;

 import javax.json.JsonStructure;

 import lombok.EqualsAndHashCode;

 /**

  * Github gists.

  *

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

  * @version $Id: df1a1a9114664f665bfaee0d4d67a075770768f4 $

  * @since 0.1

  * @checkstyle MultipleStringLiterals (500 lines)

  */

 @Immutable

 @Loggable(Loggable.DEBUG)

 @EqualsAndHashCode(of = { "ghub", "request" })

 final class RtGists implements Gists {

     /**

      * API entry point.

      */

     private final transient Request entry;

     /**

      * Github.

      */

     private final transient Github ghub;

     /**

      * RESTful request.

      */

     private final transient Request request;

     /**

      * Public ctor.

      * @param github Github

      * @param req Request

      */

     RtGists(final Github github, final Request req) {

         this.entry = req;

         this.ghub = github;

         this.request = this.entry.uri().path("/gists").back();

     }

     @Override

     public String toString() {

         return this.request.uri().get().toString();

     }

     @Override

     public Github github() {

         return this.ghub;

     }

     @Override

     public Gist create(final Map<String, String> files, final boolean visible

     ) throws IOException {

         JsonObjectBuilder builder = Json.createObjectBuilder();

         for (final Map.Entry<String, String> file : files.entrySet()) {

             builder = builder.add(

                 file.getKey(),

                 Json.createObjectBuilder().add("content", file.getValue())

             );

         }

         final JsonStructure json = Json.createObjectBuilder()

             .add("files", builder)

             .add("public", visible)

             .build();

         return this.get(

             this.request.method(Request.POST)

                 .body().set(json).back()

                 .fetch().as(RestResponse.class)

                 .assertStatus(HttpURLConnection.HTTP_CREATED)

                 .as(JsonResponse.class)

                 .json().readObject().getString("id")

         );

     }

     @Override

     public Gist get(final String name) {

         return new RtGist(this.ghub, this.entry, name);

     }

     @Override

     public Iterable<Gist> iterate() {

         return new RtPagination<Gist>(

             this.request,

             new RtValuePagination.Mapping<Gist, JsonObject>() {

                 @Override

                 public Gist map(final JsonObject object) {

                     return RtGists.this.get(object.getString("id"));

                 }

             }

         );

     }

     @Override

     public void remove(

         final String identifier

     ) throws IOException {

         this.request.method(Request.DELETE)

             .uri().path(identifier).back()

             .fetch()

             .as(RestResponse.class)

             .assertStatus(HttpURLConnection.HTTP_NO_CONTENT);

     }

 }