Allow for additional GitHub issue state to be set

src/Microsoft.DotNet.Git.IssueManager/src/Clients/GitHubClient.cs

@@ -3,9 +3,11 @@
 
 using Octokit;
 using System;
+using System.Collections.Generic;
 using System.Linq;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
+using Microsoft.DotNet.Git.IssueManager.Helpers;
 
 namespace Microsoft.DotNet.Git.IssueManager.Clients
 {
@@ -38,7 +40,10 @@ public static async Task<int> CreateNewIssueAsync(
             string repositoryUrl,
             string issueTitle,
             string issueDescription,
-            string personalAccessToken)
+            string personalAccessToken,
+            int? milestone = null,
+            IEnumerable<string> labels = null,
+            IEnumerable<string> assignees = null)
         {
             (string owner, string repoName) = ParseRepoUri(repositoryUrl);
 
@@ -48,9 +53,20 @@ public static async Task<int> CreateNewIssueAsync(
 
             NewIssue issueToBeCreated = new NewIssue(issueTitle)
             {
-                Body = issueDescription
+                Body = issueDescription,
+                Milestone = milestone
             };
 
+            if (labels is not null)
+            {
+                issueToBeCreated.Labels.AddRange(labels);
+            }
+
+            if (assignees is not null)
+            {
+                issueToBeCreated.Assignees.AddRange(assignees);
+            }
+
             Issue createdIssue = await client.Issue.Create(owner, repoName, issueToBeCreated);
 
             return createdIssue.Number;

src/Microsoft.DotNet.Git.IssueManager/src/Helpers/CollectionExtensions.cs

@@ -0,0 +1,19 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+
+namespace Microsoft.DotNet.Git.IssueManager.Helpers
+{
+    internal static class CollectionExtensions
+    {
+        public static void AddRange<T>(this Collection<T> collection, IEnumerable<T> items)
+        {
+            foreach (T item in items)
+            {
+                collection.Add(item);
+            }
+        }
+    }
+}

src/Microsoft.DotNet.Git.IssueManager/src/Helpers/RepositoryHelper.cs

@@ -3,6 +3,7 @@
 
 using Microsoft.DotNet.Git.IssueManager.Clients;
 using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 
 namespace Microsoft.DotNet.Git.IssueManager.Helpers
@@ -42,7 +43,10 @@ public static async Task<int> CreateNewIssueAsync(
             string repositoryUrl,
             string issueTitle,
             string issueDescription,
-            string gitHubPersonalAccessToken)
+            string gitHubPersonalAccessToken,
+            int? milestone = null,
+            IEnumerable<string> labels = null,
+            IEnumerable<string> assignees = null)
         {
             if (Uri.TryCreate(repositoryUrl, UriKind.Absolute, out Uri parsedUri))
             {
@@ -53,7 +57,14 @@ public static async Task<int> CreateNewIssueAsync(
                         throw new ArgumentException("A GitHub personal access token is needed for this operation.");
                     }
 
-                    return await GitHubClient.CreateNewIssueAsync(repositoryUrl, issueTitle, issueDescription, gitHubPersonalAccessToken);
+                    return await GitHubClient.CreateNewIssueAsync(
+                        repositoryUrl,
+                        issueTitle,
+                        issueDescription,
+                        gitHubPersonalAccessToken,
+                        milestone,
+                        labels,
+                        assignees);
                 }
 
                 throw new NotImplementedException("Creating issues is not currently supported for an Azure DevOps repo.");

src/Microsoft.DotNet.Git.IssueManager/src/IssueManager.cs

@@ -3,6 +3,7 @@
 
 using Microsoft.DotNet.Git.IssueManager.Helpers;
 using System;
+using System.Collections.Generic;
 using System.Threading.Tasks;
 
 namespace Microsoft.DotNet.Git.IssueManager
@@ -53,13 +54,19 @@ public async Task<string> GetCommitAuthorAsync(string repositoryUrl, string comm
         public async Task<int> CreateNewIssueAsync(
             string repositoryUrl,
             string issueTitle,
-            string issueDescription)
+            string issueDescription,
+            int? milestone = null,
+            IEnumerable<string> labels = null,
+            IEnumerable<string> assignees = null)
         {
             return await RepositoryHelper.CreateNewIssueAsync(
                 repositoryUrl,
                 issueTitle,
                 issueDescription,
-                GitHubPersonalAccessToken);
+                GitHubPersonalAccessToken,
+                milestone,
+                labels,
+                assignees);
         }
     }
 }