Add Namespace Approved/Rejected Notifications

src/dotnet/APIView/APIViewUnitTests/EmailTemplatePreviewGeneratorTests.cs

@@ -87,12 +87,30 @@ public async Task GenerateEmailPreviews()
                 ),
                 (
                     EmailTemplateKey.NamespaceReviewApproved,
-                    NamespaceReviewApprovedEmailModel.Create(
-                        review.PackageName,
-                        reviewUrl,
-                        languageReviews,
-                        endpoint),
-                    "namespace-review-approved.html"
+                    NamespaceApprovedEmailModel.Create(
+                        "azure-sample-service",
+                        "Azure Sample Service",
+                        "Python",
+                        "azure.sample.service",
+                        "alex-approver",
+                        DateTime.UtcNow,
+                        $"{endpoint}/Assemblies/Review/review-python-001?view=namespace",
+                        $"{endpoint}/Assemblies/Review/review-python-001"),
+                    "namespace-approved.html"
+                ),
+                (
+                    EmailTemplateKey.NamespaceRejected,
+                    NamespaceRejectedEmailModel.Create(
+                        "azure-sample-service",
+                        "Azure Sample Service",
+                        "Python",
+                        "azure.sample.service.v2",
+                        "alex-approver",
+                        DateTime.UtcNow,
+                        "Namespace collides with an existing package and does not follow service naming guidance.",
+                        $"{endpoint}/Assemblies/Review/review-python-001?view=namespace",
+                        $"{endpoint}/Assemblies/Review/review-python-001"),
+                    "namespace-review-rejected.html"
                 ),
                 (
                     EmailTemplateKey.ReviewerAssigned,
@@ -171,7 +189,8 @@ private static async Task<string> RenderAsync(IEmailTemplateService renderer, Em
             return key switch
             {
                 EmailTemplateKey.NamespaceReviewRequest => await renderer.RenderAsync(key, (NamespaceReviewRequestEmailModel)model),
-                EmailTemplateKey.NamespaceReviewApproved => await renderer.RenderAsync(key, (NamespaceReviewApprovedEmailModel)model),
+                EmailTemplateKey.NamespaceReviewApproved => await renderer.RenderAsync(key, (NamespaceApprovedEmailModel)model),
+                EmailTemplateKey.NamespaceRejected => await renderer.RenderAsync(key, (NamespaceRejectedEmailModel)model),
                 EmailTemplateKey.ReviewerAssigned => await renderer.RenderAsync(key, (ReviewerAssignedEmailModel)model),
                 EmailTemplateKey.CommentTag => await renderer.RenderAsync(key, (CommentTagEmailModel)model),
                 EmailTemplateKey.SubscriberComment => await renderer.RenderAsync(key, (SubscriberCommentEmailModel)model),

src/dotnet/APIView/APIViewWeb/Controllers/CommentsController.cs

@@ -3,6 +3,7 @@
 using APIViewWeb.Hubs;
 using APIViewWeb.LeanModels;
 using APIViewWeb.Managers;
+using APIViewWeb.Managers.Interfaces;
 using APIViewWeb.Models;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;

src/dotnet/APIView/APIViewWeb/EmailTemplates/NamespaceApprovedEmail.cshtml

@@ -0,0 +1,44 @@
+@model APIViewWeb.Models.NamespaceApprovedEmailModel
+@{
+    Layout = "/EmailTemplates/_EmailLayout.cshtml";
+    ViewData["EmailTitle"] = "Namespace Approved";
+    ViewData["EmailPreheader"] = $"The namespace proposal for {Model.PackageName} ({Model.Language}) was approved.";
+}
+
+<p class="section">Hi Team,</p>
+
+<p class="section">
+    The namespace proposal for <strong>@Model.PackageName</strong> in <strong>@Model.Language</strong> was approved.
+</p>
+
+<div class="panel">
+    <div>
+        <strong>Package Name:</strong>
+        @if (!string.IsNullOrWhiteSpace(Model.LanguageReviewUrl))
+        {
+            <a href="@Model.LanguageReviewUrl">@Model.PackageName</a>
+        }
+        else
+        {
+            @Model.PackageName
+        }
+    </div>
+    @if (!string.IsNullOrWhiteSpace(Model.ProjectName))
+    {
+        <div><strong>Project Name:</strong> @Model.ProjectName</div>
+    }
+    <div><strong>Language:</strong> @Model.Language</div>
+</div>
+
+<div class="panel">
+    <div><strong>Approved Namespace:</strong> @Model.ApprovedNamespace</div>
+    <div><strong>Approved By:</strong> @Model.ApprovedBy</div>
+    <div><strong>Approved On (UTC):</strong> @(Model.ApprovedOn?.ToString("u") ?? "N/A")</div>
+</div>
+
+<p class="section"><strong>Next Steps:</strong></p>
+<ul class="list">
+    <li>Review namespace status and history in the <a href="@Model.NamespaceTabUrl">namespace tab</a>.</li>
+</ul>
+
+<p class="section" style="margin-top: 24px;">Thanks,<br /><strong>APIView Team</strong></p>

src/dotnet/APIView/APIViewWeb/EmailTemplates/NamespaceRejectedEmail.cshtml

@@ -0,0 +1,45 @@
+@model APIViewWeb.Models.NamespaceRejectedEmailModel
+@{
+    Layout = "/EmailTemplates/_EmailLayout.cshtml";
+    ViewData["EmailTitle"] = "Namespace Rejected";
+    ViewData["EmailPreheader"] = $"The proposed namespace for {Model.PackageName} ({Model.Language}) was rejected.";
+}
+
+<p class="section">Hi Team,</p>
+
+<p class="section">
+    The namespace proposal for <strong>@Model.PackageName</strong> in <strong>@Model.Language</strong> was rejected.
+</p>
+
+<div class="panel">
+    <div>
+        <strong>Package Name:</strong>
+        @if (!string.IsNullOrWhiteSpace(Model.LanguageReviewUrl))
+        {
+            <a href="@Model.LanguageReviewUrl">@Model.PackageName</a>
+        }
+        else
+        {
+            @Model.PackageName
+        }
+    </div>
+    @if (!string.IsNullOrWhiteSpace(Model.ProjectName))
+    {
+        <div><strong>Project Name:</strong> @Model.ProjectName</div>
+    }
+    <div><strong>Language:</strong> @Model.Language</div>
+</div>
+
+<div class="panel">
+    <div><strong>Rejected Namespace:</strong> @Model.RejectedNamespace</div>
+    <div><strong>Rejected By:</strong> @Model.RejectedBy</div>
+    <div><strong>Rejected On (UTC):</strong> @(Model.RejectedOn?.ToString("u") ?? "N/A")</div>
+    <div><strong>Rejection Reason:</strong> @(string.IsNullOrWhiteSpace(Model.RejectionReason) ? "No rejection notes were provided." : Model.RejectionReason)</div>
+</div>
+
+<p class="section"><strong>Next Steps:</strong></p>
+<ul class="list">
+    <li>Review namespace status and history in the <a href="@Model.NamespaceTabUrl">namespace tab</a>.</li>
+</ul>
+
+<p class="section" style="margin-top: 24px;">Thanks,<br /><strong>APIView Team</strong></p>

src/dotnet/APIView/APIViewWeb/LeanControllers/ProjectsController.cs

@@ -18,18 +18,24 @@ public class ProjectsController : BaseApiController
         private readonly ILogger<ProjectsController> _logger;
         private readonly ICosmosProjectRepository _projectsRepository;
         private readonly ICosmosReviewRepository _reviewsRepository;
+        private readonly IProjectsManager _projectsManager;
         private readonly INamespaceManager _namespaceManager;
+        private readonly INotificationManager _notificationManager;
 
         public ProjectsController(
             ILogger<ProjectsController> logger,
             ICosmosProjectRepository projectsRepository,
             ICosmosReviewRepository reviewsRepository,
-            INamespaceManager namespaceManager)
+            IProjectsManager projectsManager,
+            INamespaceManager namespaceManager,
+            INotificationManager notificationManager)
         {
             _logger = logger;
             _projectsRepository = projectsRepository;
             _reviewsRepository = reviewsRepository;
+            _projectsManager = projectsManager;
             _namespaceManager = namespaceManager;
+            _notificationManager = notificationManager;
         }
 
         /// <summary>
@@ -217,8 +223,32 @@ public async Task<ActionResult<Project>> UpdateNamespaceStatusAsync(string proje
                         new { message = "An unexpected error occurred while processing the namespace operation." })
                 };
             }
+
+            if (request.Status == NamespaceDecisionStatus.Rejected || request.Status == NamespaceDecisionStatus.Approved)
+            {
+                string normalizedLanguage = LanguageServiceHelpers.MapLanguageAlias(language);
+                var associatedReview = await _projectsManager.GetAssociatedReviewForProjectAsync(result.Project, normalizedLanguage, request.Namespace);
+
+                NamespaceDecisionEntry decisionEntry = result.Project.NamespaceInfo?.GetCurrentEntry(
+                    normalizedLanguage,
+                    request.Namespace);
+
+                if (decisionEntry != null)
+                {
+                    if (request.Status == NamespaceDecisionStatus.Rejected)
+                    {
+                        await _notificationManager.NotifyNamespaceRejectedAsync(result.Project, decisionEntry, associatedReview);
+                    }
+                    else
+                    {
+                        await _notificationManager.NotifyNamespaceApprovedAsync(result.Project, decisionEntry, associatedReview);
+                    }
+                }
+            }
+
             return new LeanJsonResult(result.Project, StatusCodes.Status200OK);
         }
+
     }
 
     public class UpdateNamespaceStatusRequest

src/dotnet/APIView/APIViewWeb/Managers/Interfaces/INotificationManager.cs

@@ -1,9 +1,10 @@
 using APIViewWeb.LeanModels;
+using APIViewWeb.Models;
 using System.Collections.Generic;
 using System.Security.Claims;
 using System.Threading.Tasks;
 
-namespace APIViewWeb.Managers
+namespace APIViewWeb.Managers.Interfaces
 {
     public interface INotificationManager
     {
@@ -12,6 +13,8 @@ public interface INotificationManager
         public Task NotifyAssignedReviewersAsync(ClaimsPrincipal user, string apiRevisionId, HashSet<string> reviewers);
         public Task NotifyNamespaceReviewRequestRecipientsAsync(ClaimsPrincipal user, ReviewListItemModel review, IEnumerable<ReviewListItemModel> languageReviews = null, string notes = "");
         public Task NotifyStakeholdersOfManualApprovalAsync(ReviewListItemModel review, IEnumerable<ReviewListItemModel> associatedReviews);
+        public Task NotifyNamespaceApprovedAsync(Project project, NamespaceDecisionEntry approvedEntry, ReviewListItemModel associatedReview);
+        public Task NotifyNamespaceRejectedAsync(Project project, NamespaceDecisionEntry rejectedEntry, ReviewListItemModel associatedReview);
         public Task NotifySubscribersOnNewRevisionAsync(ReviewListItemModel review, APIRevisionListItemModel revision, ClaimsPrincipal user);
         public Task NotifySubscribersOnApprovalAsync(ReviewListItemModel review, APIRevisionListItemModel revision, ClaimsPrincipal user, bool isReviewApproval);
         public Task ToggleSubscribedAsync(ClaimsPrincipal user, string reviewId, bool? state = null);

src/dotnet/APIView/APIViewWeb/Managers/Interfaces/IProjectsManager.cs

@@ -8,4 +8,5 @@ public interface IProjectsManager
 {
     Task<Project> UpsertProjectFromMetadataAsync(string userName, TypeSpecMetadata metadata, ReviewListItemModel typeSpecReview);
     Task<Project> TryLinkReviewToProjectAsync(string userName, ReviewListItemModel review);
+    Task<ReviewListItemModel> GetAssociatedReviewForProjectAsync(Project project, string language, string namespaceValue);
 }