add public methods for Load(Stream...) and LoadAsync(Stream,...), inc…

runtime/promptycs/Prompty.Core.Tests/LoadTests.cs

@@ -1,3 +1,4 @@
+using System.Reflection;
 using System.Transactions;
 
 namespace Prompty.Core.Tests;
@@ -36,6 +37,76 @@ public void LoadRawWithConfig(string path)
         Assert.Equal("FAKE_TYPE", prompty.Model?.Configuration.Type);
     }
 
+    /// <summary>
+    /// Test the Loading from a Stream
+    /// </summary>
+    [Fact]
+    public void LoadStream()
+    {
+        var path = "prompty/basic.prompty";
+        using var stream = File.OpenRead(path);
+        var prompty = Prompty.Load(stream);
+
+        Assert.NotNull(prompty);
+        Assert.NotNull(prompty.Content);
+    }
+
+    /// <summary>
+    /// Test the Loading from an embedded resource
+    /// </summary>
+    [Fact]
+    public void LoadEmbeddedResource()
+    {
+        // Get the fully qualified name of the embedded resource
+        var assembly = Assembly.GetExecutingAssembly();
+        var resourceNames = assembly.GetManifestResourceNames();
+        var resourceName = resourceNames.FirstOrDefault(r => r.EndsWith("basic.prompty"));
+
+        Assert.NotNull(resourceName); // Ensure we found the resource
+
+        using var stream = assembly.GetManifestResourceStream(resourceName);
+        Assert.NotNull(stream);
+        var prompty = Prompty.Load(stream!);
+
+        Assert.NotNull(prompty);
+        Assert.NotNull(prompty.Content);
+    }
+
+    /// <summary>
+    /// Test the Loading from an embedded resource with config
+    /// </summary>
+    [Fact]
+    public void LoadEmbeddedResourceWithConfig()
+    {
+        // Get the fully qualified name of the embedded resource
+        var assembly = Assembly.GetExecutingAssembly();
+        var resourceNames = assembly.GetManifestResourceNames();
+        var resourceName = resourceNames.FirstOrDefault(r => r.EndsWith("basic.prompty"));
+
+        Assert.NotNull(resourceName); // Ensure we found the resource
+
+        using var stream = assembly.GetManifestResourceStream(resourceName);
+        Assert.NotNull(stream);
+        var prompty = Prompty.Load(stream!, "fake");
+
+        Assert.Equal("FAKE_TYPE", prompty.Model?.Configuration.Type);
+    }
+
+
+    /// <summary>
+    /// Test the Loading from a Stream Async
+    /// </summary>
+    [Fact]
+    public async Task LoadStreamAsync()
+    {
+        var path = "prompty/basic.prompty";
+        using var stream = File.OpenRead(path);
+        var prompty = await Prompty.LoadAsync(stream);
+
+        Assert.NotNull(prompty);
+        Assert.NotNull(prompty.Content);
+    }
+
     [Fact]
     public void BasicSampleParameters()
     {

runtime/promptycs/Prompty.Core.Tests/Prompty.Core.Tests.csproj

@@ -69,6 +69,7 @@
     <None Update="prompty\basic.prompty">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <EmbeddedResource Include="prompty\basic.prompty" />
     <None Update="prompty\basic_mustache.prompty">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>

runtime/promptycs/Prompty.Core/Prompty.cs

@@ -181,6 +181,44 @@ public static async Task<Prompty> LoadAsync(string path, string configuration =
             return prompty;
         }
 
+        /// <summary>
+        /// Load a prompty file from a Stream
+        /// </summary>
+        /// <param name="stream">Stream to read the prompty file from.</param>
+        /// <param name="configuration">Id of the configuration to use.</param>
+        public static Prompty Load(Stream stream, string configuration = "default")
+        {
+            using var reader = new StreamReader(stream);
+            string text = reader.ReadToEnd();
+
+            var global_config = GlobalConfig.Load(System.IO.Path.GetDirectoryName(stream.ToString()) ?? string.Empty, configuration) ?? [];
+            var streamPath = stream.ToString() ?? string.Empty;
+            global_config = Normalizer.Normalize(global_config, streamPath);
+
+            var frontmatter = LoadRaw(text, global_config, stream.ToString());
+            var prompty = Convert(frontmatter, stream.ToString());
+            return prompty;
+        }
+
+        /// <summary>
+        /// Load a prompty file from a Stream Asynchronously
+        /// </summary>
+        /// <param name="stream">Stream to read the prompty file from.</param>
+        /// <param name="configuration">Id of the configuration to use.</param>
+        public static async Task<Prompty> LoadAsync(Stream stream, string configuration = "default")
+        {
+            using var reader = new StreamReader(stream);
+            string text = await reader.ReadToEndAsync();
+
+            var global_config = await GlobalConfig.LoadAsync(System.IO.Path.GetDirectoryName(stream.ToString()) ?? string.Empty, configuration) ?? [];
+            var streamPath = stream.ToString() ?? string.Empty;
+            global_config = Normalizer.Normalize(global_config, streamPath);
+
+            var frontmatter = LoadRaw(text, global_config, stream.ToString());
+            var prompty = Convert(frontmatter, stream.ToString());
+            return prompty;
+        }
+
         /// <summary>
         /// Load a prompty file using the provided text content.
         /// </summary>