Init Services and ServiceCollectionExtensions

.editorconfig

@@ -519,4 +519,19 @@ dotnet_diagnostic.S6605.severity = none             # Collection-specific "Exist
 ##########################################
 # Custom - Code Analyzers Rules
 ##########################################
-[*.{cs,csx,cake}]
+[*.{cs,csx,cake}]
+
+MA0051.maximum_lines_per_method = 100
+
+dotnet_diagnostic.SA1010.severity = none            #
+dotnet_diagnostic.SA1402.severity = none            #
+dotnet_diagnostic.SA1615.severity = none            #
+
+dotnet_diagnostic.CA1002.severity = none            #
+dotnet_diagnostic.CA1031.severity = none            #
+dotnet_diagnostic.CA2007.severity = none            # Consider calling ConfigureAwait on the awaited task
+
+dotnet_diagnostic.MA0004.severity = none            # Use Task.ConfigureAwait(false) as the current SynchronizationContext is not needed
+dotnet_diagnostic.MA0016.severity = none            # Prefer returning collection abstraction instead of implementation
+
+dotnet_diagnostic.S3267.severity = none             #

Atc.Microsoft.Graph.Client.sln.DotSettings

@@ -0,0 +1,2 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Sharepoint/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

src/.editorconfig

@@ -44,4 +44,6 @@
 
 ##########################################
 # Custom - Code Analyzers Rules
-##########################################
+##########################################
+
+dotnet_diagnostic.IDE0039.severity = none             #

src/Atc.Microsoft.Graph.Client/Atc.Microsoft.Graph.Client.csproj

@@ -12,4 +12,12 @@
     <None Include="..\..\README.md" Link="README.md" Pack="true" PackagePath="\" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Atc" Version="2.0.472" />
+    <PackageReference Include="Azure.Identity" Version="1.11.3" />
+    <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="8.5.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Graph" Version="5.53.0" />
+  </ItemGroup>
+
 </Project>

src/Atc.Microsoft.Graph.Client/Extensions/ServiceCollectionExtensions.cs

@@ -0,0 +1,108 @@
+// ReSharper disable ConvertToLocalFunction
+namespace Atc.Microsoft.Graph.Client.Extensions;
+
+public static class ServiceCollectionExtensions
+{
+    private static readonly string[] DefaultScopes = { "https://graph.microsoft.com/.default" };
+
+    /// <summary>
+    /// Adds the <see cref="GraphServiceClient"/> to the service collection.
+    /// </summary>
+    /// <param name="services">The <see cref="IServiceCollection"/> instance to augment.</param>
+    /// <param name="graphServiceClient"><see cref="GraphServiceClient"/> to use for the service. If null, one must be available in the service provider when this service is resolved.</param>
+    /// <returns>The same instance as <paramref name="services"/>.</returns>
+    public static IServiceCollection AddMicrosoftGraphServices(
+        this IServiceCollection services,
+        GraphServiceClient? graphServiceClient = null)
+    {
+        Func<IServiceProvider, GraphServiceClient> factory = (serviceProvider)
+            => graphServiceClient ?? serviceProvider.GetRequiredService<GraphServiceClient>();
+
+        services.AddSingleton(factory);
+
+        RegisterGraphServices(services);
+
+        return services;
+    }
+
+    /// <summary>
+    /// Adds the <see cref="GraphServiceClient"/> to the service collection using the provided <see cref="TokenCredential"/> and optional scopes.
+    /// </summary>
+    /// <param name="services">The <see cref="IServiceCollection"/> instance to augment.</param>
+    /// <param name="tokenCredential">The <see cref="TokenCredential"/> to use for authentication.</param>
+    /// <param name="scopes">Optional array of scopes for the <see cref="GraphServiceClient"/>.</param>
+    /// <returns>The same instance as <paramref name="services"/>.</returns>
+    public static IServiceCollection AddMicrosoftGraphServices(
+        this IServiceCollection services,
+        TokenCredential tokenCredential,
+        string[]? scopes = null)
+    {
+        services.AddSingleton(_ => new GraphServiceClient(tokenCredential, scopes ?? DefaultScopes));
+
+        RegisterGraphServices(services);
+
+        return services;
+    }
+
+    /// <summary>
+    /// Adds the <see cref="GraphServiceClient"/> to the service collection using the provided <see cref="GraphServiceOptions"/> and optional scopes.
+    /// </summary>
+    /// <param name="services">The <see cref="IServiceCollection"/> instance to augment.</param>
+    /// <param name="graphServiceOptions">The <see cref="GraphServiceOptions"/> containing configuration for the service.</param>
+    /// <param name="scopes">Optional array of scopes for the <see cref="GraphServiceClient"/>.</param>
+    /// <returns>The same instance as <paramref name="services"/>.</returns>
+    /// <exception cref="InvalidOperationException">Thrown if the <paramref name="graphServiceOptions"/> are invalid.</exception>
+    public static IServiceCollection AddMicrosoftGraphServices(
+        this IServiceCollection services,
+        GraphServiceOptions graphServiceOptions,
+        string[]? scopes = null)
+    {
+        ArgumentNullException.ThrowIfNull(graphServiceOptions);
+
+        if (!graphServiceOptions.IsValid())
+        {
+            throw new InvalidOperationException($"Required service '{nameof(GraphServiceOptions)}' is not registered");
+        }
+
+        services.AddSingleton(_ =>
+        {
+            var options = new TokenCredentialOptions
+            {
+                AuthorityHost = AzureAuthorityHosts.AzurePublicCloud,
+            };
+
+            var clientSecretCredential = new ClientSecretCredential(
+                graphServiceOptions.TenantId,
+                graphServiceOptions.ClientId,
+                graphServiceOptions.ClientSecret,
+                options);
+
+            return new GraphServiceClient(clientSecretCredential, scopes ?? DefaultScopes);
+        });
+
+        RegisterGraphServices(services);
+
+        return services;
+    }
+
+    private static void RegisterGraphServices(
+        IServiceCollection services)
+    {
+        services.AddGraphService<IOneDriveGraphService, OneDriveGraphService>();
+        services.AddGraphService<IOutlookGraphService, OutlookGraphService>();
+        services.AddGraphService<ISharepointGraphService, SharepointGraphService>();
+        services.AddGraphService<ITeamsGraphService, TeamsGraphService>();
+        services.AddGraphService<IUsersGraphService, UsersGraphService>();
+    }
+
+    private static void AddGraphService<TService, TImplementation>(
+        this IServiceCollection services)
+        where TService : class
+        where TImplementation : GraphServiceClientWrapper, TService
+    {
+        services.AddSingleton<TService, TImplementation>(s => (TImplementation)Activator.CreateInstance(
+            typeof(TImplementation),
+            s.GetRequiredService<ILoggerFactory>(),
+            s.GetRequiredService<GraphServiceClient>())!);
+    }
+}