feat: Add Issue Comment Reaction functionality

Author: Abhi347

src/main/java/com/spotify/github/v3/clients/IssueClient.java

@@ -26,10 +26,14 @@
 import com.google.common.collect.ImmutableMap;
 import com.spotify.github.async.AsyncPage;
 import com.spotify.github.v3.comment.Comment;
+import com.spotify.github.v3.comment.CommentReaction;
+import com.spotify.github.v3.comment.CommentReactionContent;
 import com.spotify.github.v3.issues.Issue;
 import java.lang.invoke.MethodHandles;
 import java.util.Iterator;
 import java.util.concurrent.CompletableFuture;
+
+import okhttp3.Response;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -39,6 +43,8 @@ public class IssueClient {
   static final String COMMENTS_URI_NUMBER_TEMPLATE = "/repos/%s/%s/issues/%s/comments";
   static final String COMMENTS_URI_TEMPLATE = "/repos/%s/%s/issues/comments";
   static final String COMMENTS_URI_ID_TEMPLATE = "/repos/%s/%s/issues/comments/%s";
+  static final String COMMENTS_REACTION_TEMPLATE = "/repos/%s/%s/issues/comments/%s/reactions";
+  static final String COMMENTS_REACTION_ID_TEMPLATE = "/repos/%s/%s/issues/%s/reactions/%s";
   static final String ISSUES_URI_ID_TEMPLATE = "/repos/%s/%s/issues/%s";
   private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
 
@@ -137,4 +143,23 @@ private Iterator<AsyncPage<Comment>> listComments(final String path) {
   public CompletableFuture<Issue> getIssue(final int id) {
     return github.request(String.format(ISSUES_URI_ID_TEMPLATE, owner, repo, id), Issue.class);
   }
+
+  /**
+   * Create a reaction on a comment.
+   *
+   * @param commentId comment id
+   * @param reaction reaction content
+   * @return the Comment that was just created
+   */
+  public CompletableFuture<CommentReaction> createCommentReaction(final long commentId, final CommentReactionContent reaction) {
+    final String path = String.format(COMMENTS_REACTION_TEMPLATE, owner, repo, commentId);
+    final String requestBody = github.json().toJsonUnchecked(ImmutableMap.of("content", reaction));
+    return github.post(path, requestBody, CommentReaction.class);
+  }
+
+  public CompletableFuture<Response> deleteCommentReaction(final long issueNumber, final long reactionId) {
+    final String path = String.format(COMMENTS_REACTION_ID_TEMPLATE, owner, repo, issueNumber, reactionId);
+    final String requestBody = github.json().toJsonUnchecked("");
+    return github.delete(path, requestBody);
+  }
 }

src/main/java/com/spotify/github/v3/comment/CommentReaction.java

@@ -0,0 +1,43 @@
+/*-
+ * -\-\-
+ * github-api
+ * --
+ * Copyright (C) 2016 - 2020 Spotify AB
+ * --
+ * 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.spotify.github.v3.comment;
+
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import com.spotify.github.GithubStyle;
+import com.spotify.github.UpdateTracking;
+import com.spotify.github.v3.User;
+import org.immutables.value.Value;
+
+@Value.Immutable
+@GithubStyle
+@JsonSerialize(as = ImmutableComment.class)
+@JsonDeserialize(as = ImmutableComment.class)
+public interface CommentReaction extends UpdateTracking {
+
+  /** Reaction ID. */
+  long id();
+
+  /** Reaction user. */
+  User user();
+
+  /** Reaction content. */
+  CommentReactionContent content();
+}

src/main/java/com/spotify/github/v3/comment/CommentReactionContent.java

@@ -0,0 +1,42 @@
+/*-
+ * -\-\-
+ * github-api
+ * --
+ * Copyright (C) 2016 - 2020 Spotify AB
+ * --
+ * 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.spotify.github.v3.comment;
+
+public enum CommentReactionContent {
+  THUMBS_UP("+1"), // 👍
+  THUMBS_DOWN("-1"), // 👎
+  LAUGH("laugh"), // 😄
+  HOORAY("hooray"), // 🎉
+  CONFUSED("confused"), // 😕
+  HEART("heart"), // ❤️
+  ROCKET("rocket"), // 🚀
+  EYES("eyes"); // 👀
+
+  private final String reaction;
+
+  CommentReactionContent(final String reaction) {
+    this.reaction = reaction;
+  }
+
+  @Override
+  public String toString() {
+    return reaction;
+  }
+}