/**

  * 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 java.io.IOException;

 import java.io.StringReader;

 import javax.json.Json;

 import javax.json.JsonObject;

 import lombok.EqualsAndHashCode;

 import lombok.ToString;

 import org.apache.commons.lang3.builder.CompareToBuilder;

 /**

  * Github label.

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

  * @version $Id: cb36567356dd8a7fe1f33f0d72bfc074943d1c2e $

  * @checkstyle MultipleStringLiterals (500 lines)

  * @see <a href="http://developer.github.com/v3/issues/labels/">Labels API</a>

  * @since 0.1

  */

 @Immutable

 @SuppressWarnings("PMD.TooManyMethods")

 public interface Label extends Comparable<Label>, JsonReadable, JsonPatchable {

     /**

      * The repo we're in.

      * @return Issue

      * @since 0.6

      */

     Repo repo();

     /**

      * Name of it.

      * @return Name

      */

     String name();

     /**

      * Smart Label with extra features.

      */

     @Immutable

     @ToString

     @Loggable(Loggable.DEBUG)

     @EqualsAndHashCode(of = { "label", "jsn" })

     final class Smart implements Label {

         /**

          * Encapsulated label.

          */

         private final transient Label label;

         /**

          * SmartJson object for convenient JSON parsing.

          */

         private final transient SmartJson jsn;

         /**

          * Public ctor.

          * @param lbl Label

          */

         public Smart(final Label lbl) {

             this.label = lbl;

             this.jsn = new SmartJson(lbl);

         }

         /**

          * Get its color.

          * @return Color of it

          * @throws IOException If there is any I/O problem

          */

         public String color() throws IOException {

             return this.jsn.text("color");

         }

         /**

          * Set its color.

          * @param color Color to set

          * @throws IOException If there is any I/O problem

          */

         public void color(final String color) throws IOException {

             this.label.patch(

                 Json.createObjectBuilder().add("color", color).build()

             );

         }

         @Override

         public Repo repo() {

             return this.label.repo();

         }

         @Override

         public String name() {

             return this.label.name();

         }

         @Override

         public int compareTo(final Label lbl) {

             return this.label.compareTo(lbl);

         }

         @Override

         public void patch(final JsonObject json) throws IOException {

             this.label.patch(json);

         }

         @Override

         public JsonObject json() throws IOException {

             return this.label.json();

         }

     }

     /**

      * Unmodified Label with extra features.

      */

     @Immutable

     @ToString

     @Loggable(Loggable.DEBUG)

     @EqualsAndHashCode(of = { "repo", "obj" })

     final class Unmodified implements Label {

         /**

          * Encapsulated Repo.

          */

         private final transient Repo repo;

         /**

          * Encapsulated String.

          */

         private final transient String obj;

         /**

          * Public ctor.

          * @param rep Repo

          * @param object String

          */

         public Unmodified(

             final Repo rep, final String object

         ) {

             this.repo = rep;

             this.obj = object;

         }

         @Override

         public Repo repo() {

             return this.repo;

         }

         @Override

         public String name() {

             return this.json().getString("name");

         }

         @Override

         public int compareTo(final Label label) {

             return new CompareToBuilder()

                 .append(this.repo().coordinates(), label.repo().coordinates())

                 .append(this.obj, label.name())

                 .build();

         }

         @Override

         public void patch(final JsonObject json) throws IOException {

             throw new UnsupportedOperationException("#patch()");

         }

         @Override

         public JsonObject json() {

             return Json.createReader(new StringReader(this.obj)).readObject();

         }

     }

 }