WIP checkin for getting last ApiInfo object

Octokit.Reactive/IObservableGitHubClient.cs

@@ -1,6 +1,6 @@
 namespace Octokit.Reactive
 {
-    public interface IObservableGitHubClient
+    public interface IObservableGitHubClient : IApiInfo
     {
         IConnection Connection { get; }
 

Octokit.Reactive/ObservableGitHubClient.cs

@@ -68,5 +68,11 @@ namespace Octokit.Reactive
         public IObservableNotificationsClient Notification { get; private set; }
         public IObservableGitDatabaseClient GitDatabase { get; private set; }
         public IObservableSearchClient Search { get; private set; }
+
+        /// <summary>
+        /// Gets the latest API Info - this will be null if no API calls have been made
+        /// </summary>
+        /// <returns><seealso cref="ApiInfo"/> representing the information returned as part of an Api call</returns>
+        public ApiInfo LastApiInfo { get { return _gitHubClient.Connection.LastApiInfo; } }
     }
 }

Octokit.Tests.Integration/Clients/GitHubClientTests.cs

@@ -0,0 +1,32 @@
+using Octokit.Tests.Integration;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xunit;
+
+public class GitHubClientTests
+{
+    public class TheLastApiInfoProperty
+    {
+        [IntegrationTest]
+        public async Task CanRetrieveLastApiInfo()
+        {
+            var github = Helper.GetAuthenticatedClient();
+
+            // Doesn't matter which API gets called
+            await github.Miscellaneous.GetRateLimits();
+
+            var result = github.LastApiInfo;
+
+            //Assert.True(result.Links.Count > 0);
+            //Assert.True(result.AcceptedOauthScopes.Count > 0);
+            //Assert.True(result.OauthScopes.Count > 0);
+            //Assert.False(String.IsNullOrEmpty(result.Etag));
+            Assert.True(result.RateLimit.Limit > 0);
+            Assert.True(result.RateLimit.Remaining > -1);
+            Assert.NotNull(result.RateLimit.Reset);
+        }
+    }
+}

Octokit.Tests.Integration/Octokit.Tests.Integration.csproj

@@ -75,6 +75,7 @@
     <Compile Include="Clients\AuthorizationClientTests.cs" />
     <Compile Include="Clients\BlobClientTests.cs" />
     <Compile Include="Clients\BranchesClientTests.cs" />
+    <Compile Include="Clients\GitHubClientTests.cs" />
     <Compile Include="Clients\MergingClientTests.cs" />
     <Compile Include="Clients\CommitsClientTests.cs" />
     <Compile Include="Clients\CommitStatusClientTests.cs" />

Octokit.Tests/GitHubClientTests.cs

@@ -5,6 +5,7 @@ using NSubstitute;
 using Octokit.Internal;
 using Xunit;
 using Xunit.Extensions;
+using System.Collections.Generic;
 
 namespace Octokit.Tests
 {
@@ -104,5 +105,71 @@ namespace Octokit.Tests
                 Assert.Equal("bar", client.Credentials.Password);
             }
         }
+
+        public class TheLastApiInfoProperty
+        {
+            [Fact]
+            public async Task ReturnsNullIfNew()
+            {
+                var connection = Substitute.For<IConnection>();
+                connection.LastApiInfo.Returns((ApiInfo)null);
+                var client = new GitHubClient(connection);
+
+                var result = client.LastApiInfo;
+
+                Assert.Null(result);
+
+                var temp = connection.Received(1).LastApiInfo;
+            }
+
+            [Fact]
+            public async Task ReturnsObjectIfNotNew()
+            {
+                var apiInfo = new ApiInfo(
+                                new Dictionary<string, Uri>
+                                {
+                                    {
+                                        "next",
+                                        new Uri("https://api.github.com/repos/rails/rails/issues?page=4&per_page=5")
+                                    },
+                                    {
+                                        "last",
+                                        new Uri("https://api.github.com/repos/rails/rails/issues?page=131&per_page=5")
+                                    },
+                                    {
+                                        "first",
+                                        new Uri("https://api.github.com/repos/rails/rails/issues?page=1&per_page=5")
+                                    },
+                                    {
+                                        "prev",
+                                        new Uri("https://api.github.com/repos/rails/rails/issues?page=2&per_page=5")
+                                    }
+                                },
+                                new List<string>
+                                {
+                                    "user",
+                                },
+                                new List<string>
+                                {
+                                    "user", 
+                                    "public_repo",
+                                    "repo",
+                                    "gist"
+                                },
+                                "5634b0b187fd2e91e3126a75006cc4fa",
+                                new RateLimit(100, 75, 1372700873)
+                            );
+                var connection = Substitute.For<IConnection>();
+                connection.LastApiInfo.Returns(apiInfo);
+                var client = new GitHubClient(connection);
+
+                var result = client.LastApiInfo;
+
+                Assert.NotNull(result);
+
+                var temp = connection.Received(1).LastApiInfo;
+            }
+        }
+
     }
 }

Octokit.Tests/Http/ConnectionTests.cs

@@ -564,5 +564,85 @@ namespace Octokit.Tests.Http
                 Assert.True(connection.UserAgent.StartsWith("OctokitTests ("));
             }
         }
+
+        public class TheLastAPiInfoProperty
+        {
+            [Fact]
+            public async Task ReturnsNullIfNew()
+            {
+                var httpClient = Substitute.For<IHttpClient>();
+                httpClient.LastApiInfo.Returns((ApiInfo)null);
+                var connection = new Connection(new ProductHeaderValue("OctokitTests"),
+                    _exampleUri,
+                    Substitute.For<ICredentialStore>(),
+                    httpClient,
+                    Substitute.For<IJsonSerializer>());
+
+                var result = connection.LastApiInfo;
+
+                Assert.Null(result);
+
+                var temp = httpClient.Received(1).LastApiInfo;
+            }
+            
+            [Fact]
+            public async Task ReturnsObjectIfNotNew()
+            {
+                var apiInfo = new ApiInfo(
+                                new Dictionary<string, Uri>
+                                {
+                                    {
+                                        "next",
+                                        new Uri("https://api.github.com/repos/rails/rails/issues?page=4&per_page=5")
+                                    },
+                                    {
+                                        "last",
+                                        new Uri("https://api.github.com/repos/rails/rails/issues?page=131&per_page=5")
+                                    },
+                                    {
+                                        "first",
+                                        new Uri("https://api.github.com/repos/rails/rails/issues?page=1&per_page=5")
+                                    },
+                                    {
+                                        "prev",
+                                        new Uri("https://api.github.com/repos/rails/rails/issues?page=2&per_page=5")
+                                    }
+                                },
+                                new List<string>
+                                {
+                                    "user",
+                                },
+                                new List<string>
+                                {
+                                    "user", 
+                                    "public_repo",
+                                    "repo",
+                                    "gist"
+                                },
+                                "5634b0b187fd2e91e3126a75006cc4fa",
+                                new RateLimit(100, 75, 1372700873)
+                            );
+
+                var httpClient = Substitute.For<IHttpClient>();
+                httpClient.LastApiInfo.Returns(apiInfo);
+                var connection = new Connection(new ProductHeaderValue("OctokitTests"),
+                    _exampleUri,
+                    Substitute.For<ICredentialStore>(),
+                    httpClient,
+                    Substitute.For<IJsonSerializer>());
+
+                var result = connection.LastApiInfo;
+
+                // No point checking all of the values as they are tested elsewhere
+                // Just provde that the ApiInfo is populated
+                Assert.Equal(4, result.Links.Count);
+                Assert.Equal(1, result.OauthScopes.Count);
+                Assert.Equal(4, result.AcceptedOauthScopes.Count);
+                Assert.Equal("5634b0b187fd2e91e3126a75006cc4fa", result.Etag);
+                Assert.Equal(100, result.RateLimit.Limit);
+
+                var temp = httpClient.Received(1).LastApiInfo;
+            }
+        }
     }
 }

Octokit/GitHubClient.cs

@@ -100,6 +100,12 @@ namespace Octokit
             Deployment = new DeploymentsClient(apiConnection);
         }
 
+        /// <summary>
+        /// Gets the latest API Info - this will be null if no API calls have been made
+        /// </summary>
+        /// <returns><seealso cref="ApiInfo"/> representing the information returned as part of an Api call</returns>
+        public ApiInfo LastApiInfo { get { return Connection.LastApiInfo; } }
+
         /// <summary>
         /// Convenience property for getting and setting credentials.
         /// </summary>

Octokit/Http/Connection.cs

@@ -136,6 +136,12 @@ namespace Octokit
             _jsonPipeline = new JsonHttpPipeline();
         }
 
+        /// <summary>
+        /// Gets the latest API Info - this will be null if no API calls have been made
+        /// </summary>
+        /// <returns><seealso cref="ApiInfo"/> representing the information returned as part of an Api call</returns>
+        public ApiInfo LastApiInfo { get { return _httpClient.LastApiInfo; } }
+
         public Task<IApiResponse<T>> Get<T>(Uri uri, IDictionary<string, string> parameters, string accepts)
         {
             Ensure.ArgumentNotNull(uri, "uri");

Octokit/Http/HttpClientAdapter.cs

@@ -28,6 +28,12 @@ namespace Octokit.Internal
             _http = new HttpClient(new RedirectHandler { InnerHandler = getHandler() });
         }
 
+        /// <summary>
+        /// Gets the latest API Info - this will be null if no API calls have been made
+        /// </summary>
+        /// <returns><seealso cref="ApiInfo"/> representing the information returned as part of an Api call</returns>
+        public ApiInfo LastApiInfo { get; private set; }
+
         /// <summary>
         /// Sends the specified request and returns a response.
         /// </summary>
@@ -45,7 +51,11 @@ namespace Octokit.Internal
                 // Make the request
                 var responseMessage = await _http.SendAsync(requestMessage, HttpCompletionOption.ResponseContentRead, cancellationTokenForRequest)
                                                 .ConfigureAwait(false);
-                return await BuildResponse(responseMessage).ConfigureAwait(false);
+                var response = await BuildResponse(responseMessage).ConfigureAwait(false);
+
+                LastApiInfo = response.ApiInfo;
+
+                return response;
             }
         }
 

Octokit/Http/IApiInfo.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Octokit
+{
+    /// <summary>
+    /// Provides a property for the Last recorded API infomation
+    /// </summary>
+    public interface IApiInfo
+    {
+        /// <summary>
+        /// Gets the latest API Info - this will be null if no API calls have been made
+        /// </summary>
+        /// <returns><seealso cref="ApiInfo"/> representing the information returned as part of an Api call</returns>
+        ApiInfo LastApiInfo { get; }
+    }
+}

Octokit/Http/IConnection.cs

@@ -10,7 +10,7 @@ namespace Octokit
     /// <summary>
     /// A connection for making HTTP requests against URI endpoints.
     /// </summary>
-    public interface IConnection
+    public interface IConnection : IApiInfo
     {
         /// <summary>
         /// Performs an asynchronous HTTP GET request that expects a <seealso cref="IResponse"/> containing HTML.

Octokit/Http/IHttpClient.cs

@@ -10,7 +10,7 @@ namespace Octokit.Internal
     /// <remarks>
     /// Most folks won't ever need to swap this out. But if you're trying to run this on Windows Phone, you might.
     /// </remarks>
-    public interface IHttpClient : IDisposable
+    public interface IHttpClient : IDisposable, IApiInfo
     {
         /// <summary>
         /// Sends the specified request and returns a response.

Octokit/IGitHubClient.cs

@@ -5,7 +5,7 @@ namespace Octokit
     /// <summary>
     /// A Client for the GitHub API v3. You can read more about the api here: http://developer.github.com.
     /// </summary>
-    public interface IGitHubClient
+    public interface IGitHubClient : IApiInfo
     {
         /// <summary>
         /// Provides a client connection to make rest requests to HTTP endpoints.

Octokit/Octokit-Mono.csproj

@@ -399,6 +399,7 @@
     <Compile Include="Models\Response\ResourceRateLimit.cs" />
     <Compile Include="Models\Response\MiscellaneousRateLimit.cs" />
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
+    <Compile Include="Http\IApiInfo.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
 </Project>

Octokit/Octokit-MonoAndroid.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -415,6 +415,7 @@
     <Compile Include="Models\Response\ResourceRateLimit.cs" />
     <Compile Include="Models\Response\MiscellaneousRateLimit.cs" />
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
+    <Compile Include="Http\IApiInfo.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Novell\Novell.MonoDroid.CSharp.targets" />
 </Project>

Octokit/Octokit-Monotouch.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -408,6 +408,7 @@
     <Compile Include="Models\Response\ResourceRateLimit.cs" />
     <Compile Include="Models\Response\MiscellaneousRateLimit.cs" />
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
+    <Compile Include="Http\IApiInfo.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.MonoTouch.CSharp.targets" />
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />

Octokit/Octokit-Portable.csproj

@@ -398,6 +398,7 @@
     <Compile Include="Models\Response\ResourceRateLimit.cs" />
     <Compile Include="Models\Response\MiscellaneousRateLimit.cs" />
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
+    <Compile Include="Http\IApiInfo.cs" />
   </ItemGroup>
   <ItemGroup>
     <CodeAnalysisDictionary Include="..\CustomDictionary.xml">

Octokit/Octokit-netcore45.csproj

@@ -402,6 +402,7 @@
     <Compile Include="Models\Response\ResourceRateLimit.cs" />
     <Compile Include="Models\Response\MiscellaneousRateLimit.cs" />
     <Compile Include="Exceptions\RepositoryFormatException.cs" />
+    <Compile Include="Http\IApiInfo.cs" />
   </ItemGroup>
   <ItemGroup>
     <CodeAnalysisDictionary Include="..\CustomDictionary.xml">

Octokit/Octokit.csproj

@@ -84,6 +84,7 @@
     <Compile Include="Helpers\PropertyOrField.cs" />
     <Compile Include="Helpers\SerializeNullAttribute.cs" />
     <Compile Include="Http\HttpMessageHandlerFactory.cs" />
+    <Compile Include="Http\IApiInfo.cs" />
     <Compile Include="Http\ProductHeaderValue.cs" />
     <Compile Include="Models\Request\GistFileUpdate.cs" />
     <Compile Include="Models\Request\NewMerge.cs" />