Add listComments for PR to the Bitbucket API

Author: machadoit

src/main/scala/com/codacy/client/bitbucket/SimplePullRequestComment.scala

@@ -0,0 +1,14 @@
+package com.codacy.client.bitbucket
+
+import play.api.libs.functional.syntax._
+import play.api.libs.json._
+
+case class SimplePullRequestComment(id: Long, anchor: Option[String])
+
+object SimplePullRequestComment {
+
+  implicit val reader: Reads[SimplePullRequestComment] = (
+    (__ \ "comment_id").read[Long] and
+      (__ \ "anchor").readNullable[String]
+    )(SimplePullRequestComment.apply _)
+}

src/main/scala/com/codacy/client/bitbucket/service/PullRequestServices.scala

@@ -1,7 +1,7 @@
 package com.codacy.client.bitbucket.service
 
 import com.codacy.client.bitbucket.client.{BitbucketClient, Request, RequestResponse}
-import com.codacy.client.bitbucket.{PullRequestComment, PullRequest, SimpleCommit}
+import com.codacy.client.bitbucket.{PullRequest, PullRequestComment, SimpleCommit, SimplePullRequestComment}
 import play.api.libs.json._
 
 class PullRequestServices(client: BitbucketClient) {
@@ -93,4 +93,10 @@ class PullRequestServices(client: BitbucketClient) {
     client.delete(url)
   }
 
+  def listComments(author: String, repo: String, pullRequestId: Int): RequestResponse[Seq[SimplePullRequestComment]] = {
+    val url = s"https://bitbucket.org/!api/1.0/repositories/$author/$repo/pullrequests/$pullRequestId/comments"
+
+    client.execute(Request(url, classOf[Seq[SimplePullRequestComment]]))
+  }
+
 }