List milestone and List Labels in a project (#359)

* GET list milestones

* added test

* updated documentation listMilestone

* added GET list labels repository

* updated docu

* merge with master

* fix Travis

* updated doc

* Update github4s/src/main/scala/github4s/interpreters/IssuesInterpreter.scala

Co-Authored-By: Ben Fradet <benjamin.fradet@gmail.com>

* Address PR comments

* remove val

* fix test

Co-authored-by: Ben Fradet <benjamin.fradet@gmail.com>

docs/docs/issue.md

@@ -21,11 +21,14 @@ with Github4s, you can interact with:
   - [Edit a comment](#edit-a-comment)
   - [Delete a comment](#delete-a-comment)
 - [Labels](#labels)
+  - [List labels for this repository](#list-labels-for-this-repository)
   - [List labels](#list-labels)
   - [Add labels](#add-labels)
   - [Remove a label](#remove-a-label)
 - [Assignees](#assignees)
   - [List available assignees](#list-available-assignees)
+- [Milestones](#milestones)
+  - [List milestones for a respository](#list-milestones-for-a-repository)
 
 The following examples assume the following imports and token:
 
@@ -268,6 +271,28 @@ See [the API doc](https://developer.github.com/v3/issues/comments/#delete-a-comm
 
 ## Labels
 
+### List labels for this repository
+
+You can list labels for an issue with the following parameters:
+
+ - the repository coordinates (`owner` and `name` of the repository).
+ - `pagination`: Limit and Offset for pagination, optional.
+
+ To list labels:
+
+```scala mdoc:compile-only
+val labelListRepository = Github[IO](accessToken).issues.listLabelsRepository("47deg", "github4s")
+labelListRepository.unsafeRunSync match {
+  case Left(e) => println(s"Something went wrong: ${e.getMessage}")
+  case Right(r) => println(r.result)
+}
+```
+
+The `result` on the right is the corresponding [List[Label]][issue-scala]
+
+See [the API doc](https://developer.github.com/v3/issues/labels/#list-all-labels-for-this-repository) for full reference.
+
+
 ### List labels
 
 You can list labels for an issue with the following parameters:
@@ -362,3 +387,33 @@ As a result, if you'd like to see a feature supported, feel free to create an is
 
 [issue-scala]: https://github.com/47deg/github4s/blob/master/github4s/src/main/scala/github4s/domain/Issue.scala
 [user-scala]: https://github.com/47deg/github4s/blob/master/github4s/src/main/scala/github4s/domain/User.scala
+
+## Milestones
+
+### List milestones for a repository
+
+You can list the milestone for a particular organization and repository with `listMilestones`; it takes arguments:
+
+ - `owner`: name of the owner for which we want to retrieve the milestones.
+ - `repo`: name of the repository for which we want to retrieve the milestones.
+ - `state`: filter projects returned by their state. Can be either `open`, `closed`, `all`. Default: `open`, optional
+ - `sort`: what to sort results by. Either `due_on` or `completeness`. Default: `due_on`, optional
+ - `direction` the direction of the sort. Either `asc` or `desc`. Default: `asc`, optional
+ - `pagination`: Limit and Offset for pagination, optional.
+ - `header`: headers to include in the request, optional.
+
+ To list the milestone for owner `47deg` and repository `github4s`:
+
+```scala mdoc:compile-only
+val milestones = Github[IO](accessToken).issues.listMilestones("47deg", "github4s", Some("open"), None, None)
+milestones.unsafeRunSync match {
+  case Left(e) => println(s"Something went wrong: ${e.getMessage}")
+  case Right(r) => println(r.result)
+}
+```
+
+The `result` on the right is the corresponding [List[Milestone]][milestone-scala]
+
+See [the API doc](https://developer.github.com/v3/issues/milestones/#list-milestones-for-a-repository) for full reference.
+
+[milestone-scala]: https://github.com/47deg/github4s/blob/master/github4s/src/main/scala/github4s/domain/Milestone.scala

github4s/src/main/scala/github4s/Decoders.scala

@@ -276,8 +276,9 @@ object Decoders {
         )
       )
 
-  implicit val decodeTeam: Decoder[Team]       = deriveDecoder[Team]
-  implicit val decodeProject: Decoder[Project] = deriveDecoder[Project]
-  implicit val decodeColumn: Decoder[Column]   = deriveDecoder[Column]
+  implicit val decodeTeam: Decoder[Team]           = deriveDecoder[Team]
+  implicit val decodeMilestone: Decoder[Milestone] = deriveDecoder[Milestone]
+  implicit val decodeProject: Decoder[Project]     = deriveDecoder[Project]
+  implicit val decodeColumn: Decoder[Column]       = deriveDecoder[Column]
 
 }

github4s/src/main/scala/github4s/algebras/Issues.scala

@@ -208,6 +208,22 @@ trait Issues[F[_]] {
       headers: Map[String, String] = Map()
   ): F[GHResponse[Unit]]
 
+  /**
+   * List the labels assigned to a Repository
+   *
+   * @param owner of the repo
+   * @param repo name of the repo
+   * @param headers optional user headers to include in the request
+   * @param pagination Limit and Offset for pagination, optional.
+   * @return a GHResponse with the list of labels for the Repository.
+   */
+  def listLabelsRepository(
+      owner: String,
+      repo: String,
+      headers: Map[String, String] = Map(),
+      pagination: Option[Pagination] = None
+  ): F[GHResponse[List[Label]]]
+
   /**
    * List the labels assigned to an Issue
    *
@@ -275,4 +291,27 @@ trait Issues[F[_]] {
       pagination: Option[Pagination] = None,
       headers: Map[String, String] = Map()
   ): F[GHResponse[List[User]]]
+
+  /**
+   * List milestone in specified repository
+   *
+   * @param owner repo owner
+   * @param repo repo name
+   * @param state filter milestones returned by their state. Can be either `open`, `closed`, `all`. Default: `open`
+   * @param sort What to sort results by. Either due_on or completeness. Default: due_on
+   * @param direction The direction of the sort. Either asc or desc. Default: asc
+   * @param pagination Limit and Offset for pagination
+   * @param headers optional user headers to include in the request
+   * @return a GHResponse with the list of milestones in specified repository
+   */
+  def listMilestones(
+      owner: String,
+      repo: String,
+      state: Option[String],
+      sort: Option[String],
+      direction: Option[String],
+      pagination: Option[Pagination] = None,
+      headers: Map[String, String] = Map()
+  ): F[GHResponse[List[Milestone]]]
+
 }

github4s/src/main/scala/github4s/domain/Issue.scala

@@ -84,3 +84,22 @@ case class Comment(
 )
 
 case class CommentData(body: String)
+
+case class Milestone(
+    url: String,
+    html_url: String,
+    labels_url: String,
+    id: Int,
+    node_id: String,
+    number: Int,
+    state: String,
+    title: String,
+    description: String,
+    creator: Creator,
+    open_issues: Int,
+    closed_issues: Int,
+    created_at: String,
+    updated_at: String,
+    closed_at: Option[String],
+    due_on: String
+)

github4s/src/main/scala/github4s/interpreters/IssuesInterpreter.scala

@@ -136,6 +136,19 @@ class IssuesInterpreter[F[_]](implicit client: HttpClient[F], accessToken: Optio
   ): F[GHResponse[Unit]] =
     client.delete(accessToken, s"repos/$owner/$repo/issues/comments/$id", headers)
 
+  override def listLabelsRepository(
+      owner: String,
+      repo: String,
+      headers: Map[String, String],
+      pagination: Option[Pagination]
+  ): F[GHResponse[List[Label]]] =
+    client.get[List[Label]](
+      accessToken,
+      s"repos/$owner/$repo/labels",
+      headers = headers,
+      pagination = pagination
+    )
+
   override def listLabels(
       owner: String,
       repo: String,
@@ -183,4 +196,22 @@ class IssuesInterpreter[F[_]](implicit client: HttpClient[F], accessToken: Optio
       headers,
       pagination = pagination
     )
+
+  override def listMilestones(
+      owner: String,
+      repo: String,
+      state: Option[String],
+      sort: Option[String],
+      direction: Option[String],
+      pagination: Option[Pagination],
+      headers: Map[String, String]
+  ): F[GHResponse[List[Milestone]]] =
+    client.get[List[Milestone]](
+      accessToken,
+      s"repos/$owner/$repo/milestones",
+      headers,
+      pagination = pagination,
+      params =
+        List(state.map("state" -> _), sort.map("sort" -> _), direction.map("direction" -> _)).flatten.toMap
+    )
 }

github4s/src/test/scala/github4s/integration/GHIssuesSpec.scala

@@ -104,6 +104,32 @@ trait GHIssuesSpec extends BaseIntegrationSpec {
     })
   }
 
+  "Issues >> listLabelsRepository" should "return a list of labels" taggedAs Integration in {
+    val response = Github[IO](accessToken).issues
+      .listLabelsRepository(validRepoOwner, validRepoName, headerUserAgent, None)
+      .unsafeRunSync()
+
+    testIsRight[List[Label]](response, { r =>
+      r.result.nonEmpty shouldBe true
+      r.statusCode shouldBe okStatusCode
+    })
+  }
+  it should "return error for an invalid repo owner" taggedAs Integration in {
+    val response = Github[IO](accessToken).issues
+      .listLabelsRepository(invalidRepoOwner, validRepoName, headerUserAgent, None)
+      .unsafeRunSync()
+
+    testIsLeft(response)
+  }
+
+  it should "return error for an invalid repo name" taggedAs Integration in {
+    val response = Github[IO](accessToken).issues
+      .listLabelsRepository(validRepoOwner, invalidRepoName, headerUserAgent, None)
+      .unsafeRunSync()
+
+    testIsLeft(response)
+  }
+
   "Issues >> RemoveLabel" should "return a list of removed labels" taggedAs Integration in {
     val response = Github[IO](accessToken).issues
       .removeLabel(
@@ -159,4 +185,43 @@ trait GHIssuesSpec extends BaseIntegrationSpec {
     testIsLeft(response)
   }
 
+  "GHIssues >> ListMilestones" should "return a list of milestones" taggedAs Integration in {
+    val response = Github[IO](accessToken).issues
+      .listMilestones(
+        validRepoOwner,
+        validRepoName,
+        None,
+        None,
+        None,
+        None,
+        headerUserAgent
+      )
+      .unsafeRunSync()
+
+    testIsRight[List[Milestone]](response, r => r.statusCode shouldBe okStatusCode)
+  }
+
+  it should "return error for an invalid repo owner" taggedAs Integration in {
+    val response = Github[IO](accessToken).issues
+      .listMilestones(
+        invalidRepoOwner,
+        validRepoName,
+        None,
+        None,
+        None,
+        None,
+        headerUserAgent
+      )
+      .unsafeRunSync()
+
+    testIsLeft(response)
+  }
+
+  it should "return error for an invalid repo name" taggedAs Integration in {
+    val response = Github[IO](accessToken).issues
+      .listMilestones(validRepoOwner, invalidRepoName, None, None, None, None, headerUserAgent)
+      .unsafeRunSync()
+    testIsLeft(response)
+  }
+
 }

github4s/src/test/scala/github4s/unit/IssuesSpec.scala

@@ -203,6 +203,19 @@ class IssuesSpec extends BaseSpec {
     issues.deleteComment(validRepoOwner, validRepoName, validCommentId, headerUserAgent)
   }
 
+  "Issues.ListLabelsRepository" should "call httpClient.get with the right parameters" in {
+    val response: IO[GHResponse[List[Label]]] =
+      IO(Right(GHResult(List(label), okStatusCode, Map.empty)))
+
+    implicit val httpClientMock = httpClientMockGet[List[Label]](
+      url = s"repos/$validRepoOwner/$validRepoName/labels",
+      response = response
+    )
+
+    val issues = new IssuesInterpreter[IO]
+    issues.listLabelsRepository(validRepoOwner, validRepoName, headerUserAgent)
+  }
+
   "Issues.ListLabels" should "call httpClient.get with the right parameters" in {
     val response: IO[GHResponse[List[Label]]] =
       IO(Right(GHResult(List(label), okStatusCode, Map.empty)))
@@ -276,4 +289,25 @@ class IssuesSpec extends BaseSpec {
     )
   }
 
+  "Issues.listMilestone" should "call httpClient.get with the right parameters" in {
+    val response: IO[GHResponse[List[Milestone]]] =
+      IO(Right(GHResult(List(), okStatusCode, Map.empty)))
+
+    implicit val httpClientMock = httpClientMockGet[List[Milestone]](
+      url = s"repos/$validRepoOwner/$validRepoName/milestones",
+      response = response
+    )
+
+    val issues = new IssuesInterpreter[IO]
+    issues.listMilestones(
+      validRepoOwner,
+      validRepoName,
+      None,
+      None,
+      None,
+      Some(Pagination(validPage, validPerPage)),
+      headerUserAgent
+    )
+  }
+
 }