The default image of a new device model or edge model should be the d…

src/AzureIoTHub.Portal.Application/Managers/IDeviceModelImageManager.cs

@@ -18,5 +18,7 @@ public interface IDeviceModelImageManager
         Task InitializeDefaultImageBlob();
 
         Task SyncImagesCacheControl();
+
+        Task<string> SetDefaultImageToModel(string deviceModelId);
     }
 }

src/AzureIoTHub.Portal.Infrastructure/AzureIoTHub.Portal.Infrastructure.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net7.0</TargetFramework>

src/AzureIoTHub.Portal.Infrastructure/Managers/DeviceModelImageManager.cs

@@ -53,6 +53,26 @@ public async Task<string> ChangeDeviceModelImageAsync(string deviceModelId, Stre
             return blobClient.Uri.ToString();
         }
 
+        public async Task<string> SetDefaultImageToModel(string deviceModelId)
+        {
+            var blobContainer = this.blobService.GetBlobContainerClient(this.deviceModelImageOptions.Value.ImageContainerName);
+
+            var blobClient = blobContainer.GetBlobClient(deviceModelId);
+
+            this.logger.LogInformation($"Uploading to Blob storage as blob:\n\t {blobClient.Uri}\n");
+
+            var currentAssembly = Assembly.GetExecutingAssembly();
+
+            var defaultImageStream = currentAssembly
+                                            .GetManifestResourceStream($"{currentAssembly.GetName().Name}.Resources.{this.deviceModelImageOptions.Value.DefaultImageName}");
+
+            _ = await blobClient.UploadAsync(defaultImageStream, true);
+
+            _ = await blobClient.SetHttpHeadersAsync(new BlobHttpHeaders { CacheControl = $"max-age={this.configHandler.StorageAccountDeviceModelImageMaxAge}, must-revalidate" });
+
+            return blobClient.Uri.ToString();
+        }
+
         public async Task DeleteDeviceModelImageAsync(string deviceModelId)
         {
             var blobContainer = this.blobService.GetBlobContainerClient(this.deviceModelImageOptions.Value.ImageContainerName);

src/AzureIoTHub.Portal.Server/Services/DeviceModelService.cs

@@ -92,6 +92,8 @@ public async Task CreateDeviceModel(TModel deviceModel)
             await this.deviceModelRepository.InsertAsync(deviceModelEntity);
             await this.unitOfWork.SaveAsync();
 
+            _ = this.deviceModelImageManager.SetDefaultImageToModel(deviceModel.ModelId);
+
             await CreateDeviceModelConfiguration(deviceModel);
         }
 

src/AzureIoTHub.Portal.Server/Services/EdgeModelService.cs

@@ -99,6 +99,8 @@ public async Task CreateEdgeModel(IoTEdgeModel edgeModel)
                 throw new ResourceAlreadyExistsException($"The edge model with id {edgeModel?.ModelId} already exists");
             }
 
+            _ = await this.deviceModelImageManager.SetDefaultImageToModel(edgeModel?.ModelId);
+
             await SaveModuleCommands(edgeModel);
             await this.configService.RollOutEdgeModelConfiguration(edgeModel);
         }

src/AzureIoTHub.Portal.Tests.Unit/Infrastructure/Managers/DeviceModelImageManagerTest.cs

@@ -103,6 +103,54 @@ public async Task ChangeDeviceModelImageShouldUploadImageAndReturnItsUri()
             MockRepository.VerifyAll();
         }
 
+        [Test]
+        public async Task ChangeDeviceModelImageShouldSetDefaultImageToModel()
+        {
+            // Arrange
+            var deviceModelId = Fixture.Create<string>();
+            var expectedImageUri = Fixture.Create<Uri>();
+            using var imageAsMemoryStream = new MemoryStream(Encoding.UTF8.GetBytes(Fixture.Create<string>()));
+
+            var mockOptions = new DeviceModelImageOptions()
+            {
+                BaseUri = Fixture.Create<Uri>()
+            };
+
+            _ = this.mockDeviceModelImageOptions.Setup(x => x.Value).Returns(mockOptions);
+
+            _ = this.mockBlobServiceClient
+                .Setup(x => x.GetBlobContainerClient(It.IsAny<string>()))
+                .Returns(this.mockBlobContainerClient.Object);
+
+            _ = this.mockBlobContainerClient
+                .Setup(x => x.GetBlobClient(deviceModelId))
+                .Returns(this.mockBlobClient.Object);
+
+            _ = this.mockBlobClient
+                .Setup(client =>
+                    client.SetHttpHeadersAsync(It.IsAny<BlobHttpHeaders>(), It.IsAny<BlobRequestConditions>(), It.IsAny<CancellationToken>()))
+                .ReturnsAsync(Response.FromValue(BlobsModelFactory.BlobInfo(ETag.All, DateTimeOffset.Now), Mock.Of<Response>()));
+
+            _ = this.mockBlobClient
+                .Setup(client => client.UploadAsync(It.IsAny<Stream>(), true, It.IsAny<CancellationToken>()))
+                .ReturnsAsync(Response.FromValue(
+                    BlobsModelFactory.BlobContentInfo(ETag.All, DateTimeOffset.Now, Array.Empty<byte>(), string.Empty,
+                        1L), Mock.Of<Response>()));
+
+            _ = this.mockBlobClient
+                .Setup(client => client.Uri)
+                .Returns(expectedImageUri);
+
+            _ = this.mockConfigHandler.Setup(handler => handler.StorageAccountDeviceModelImageMaxAge).Returns(3600);
+
+            // Act
+            var result = await this.deviceModelImageManager.SetDefaultImageToModel(deviceModelId);
+
+            // Assert
+            _ = result.Should().Be(expectedImageUri.ToString());
+            MockRepository.VerifyAll();
+        }
+
         [Test]
         public async Task WhenDeleteAsyncFailedDeleteDeviceModelImageAsyncShouldThrowAnInternalServerErrorException()
         {

src/AzureIoTHub.Portal.Tests.Unit/Server/Services/DeviceModelServiceTests.cs

@@ -145,6 +145,7 @@ public async Task CreateDeviceModelShouldCreateDeviceModel()
         {
             // Arrange
             var deviceModelDto = Fixture.Create<DeviceModelDto>();
+            var expectedAvatarUrl = Fixture.Create<string>();
 
             _ = this.mockDeviceModelRepository.Setup(repository => repository.InsertAsync(It.IsAny<DeviceModel>()))
                 .Returns(Task.CompletedTask);
@@ -166,6 +167,10 @@ public async Task CreateDeviceModelShouldCreateDeviceModel()
                         It.IsAny<Dictionary<string, object>>()))
                 .Returns(Task.CompletedTask);
 
+            _ = this.mockDeviceModelImageManager.Setup(manager =>
+                    manager.SetDefaultImageToModel(deviceModelDto.ModelId))
+                .ReturnsAsync(expectedAvatarUrl);
+
             // Act
             await this.deviceModelService.CreateDeviceModel(deviceModelDto);
 

src/AzureIoTHub.Portal.Tests.Unit/Server/Services/EdgeModelServiceTest.cs

@@ -180,6 +180,7 @@ public async Task CreateEdgeModelShouldCreateEdgeModel()
         {
             // Arrange
             var edgeDeviceModel = Fixture.Create<IoTEdgeModel>();
+            var expectedImageUri = Fixture.Create<Uri>();
 
             _ = this.mockEdgeDeviceModelRepository.Setup(x => x.GetByIdAsync(It.IsAny<string>()))
                 .ReturnsAsync((EdgeDeviceModel)null);
@@ -202,6 +203,10 @@ public async Task CreateEdgeModelShouldCreateEdgeModel()
             _ = this.mockConfigService.Setup(x => x.RollOutEdgeModelConfiguration(It.IsAny<IoTEdgeModel>()))
                 .Returns(Task.CompletedTask);
 
+            _ = this.mockDeviceModelImageManager.Setup(manager =>
+                    manager.SetDefaultImageToModel(It.IsAny<string>()))
+                .ReturnsAsync(expectedImageUri.ToString());
+
             // Act
             await this.edgeDeviceModelService.CreateEdgeModel(edgeDeviceModel);