fix: Improved enum/boolean detection for some cases.

Author: HavenDV

src/libs/OpenApiGenerator.Core/Extensions/OpenApiSchemaExtensions.cs

@@ -1,3 +1,4 @@
+using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Models;
 
 namespace OpenApiGenerator.Core.Extensions;
@@ -47,7 +48,16 @@ public static bool IsEnum(
     {
         schema = schema ?? throw new ArgumentNullException(nameof(schema));
 
-        return schema.Type == "string" && schema.Enum.Any();
+        return schema.Enum.Any() && schema.Type is "string" or null;
+    }
+    
+    public static bool IsBoolean(
+        this OpenApiSchema schema)
+    {
+        schema = schema ?? throw new ArgumentNullException(nameof(schema));
+
+        return schema.Type == "boolean" ||
+               schema.Default is OpenApiBoolean;
     }
 
     public static bool IsBase64(

src/libs/OpenApiGenerator.Core/Models/SchemaContext.cs

@@ -120,7 +120,7 @@ private static string ComputeType(OpenApiSchema schema)
         {
             return "class";
         }
-        if (schema.Type == "boolean")
+        if (schema.IsBoolean())
         {
             return "bool";
         }

src/libs/OpenApiGenerator.Core/Models/TypeData.cs

@@ -213,7 +213,7 @@ public static string GetCSharpType(SchemaContext context, SchemaContext? additio
             ("array", _) =>
                 ($"{context.Children.FirstOrDefault(x => x.Hint == Hint.ArrayItem)?.TypeData?.CSharpTypeWithoutNullability}".AsArray(), true),
 
-            (null, null) when context.IsClass =>
+            (null, null) when context.IsClass || context.IsEnum =>
                 ($"global::{context.Settings.Namespace}.{context.Id}", true),
             (null, null)  => ("object", true),
             ("null", _)  => ("object", true),