Update API generator to use new OpenAPI specification

.editorconfig

@@ -3,31 +3,19 @@ root=true
 [*]
 charset = utf-8
 end_of_line = lf
-indent_style = tab
-indent_size = 4
-insert_final_newline=true
-
-[*.cs]
-trim_trailing_whitespace=true
-
-[*.cshtml]
-indent_style = tab
-indent_size = 4
-
-[*.{fs,fsx}]
 indent_style = space
 indent_size = 4
+insert_final_newline=true
 
 [*.yml]
-indent_style = space
 indent_size = 2
 
-[*.{md,markdown,json,js,csproj,fsproj,targets,targets,props}]
-indent_style = space
+[*.{md,markdown,json,js,csproj,fsproj,targets,props}]
 indent_size = 2
 
 # Dotnet code style settings:
 [*.{cs,vb}]
+trim_trailing_whitespace = true
 
 # ---
 # naming conventions https://docs.microsoft.com/en-us/visualstudio/ide/editorconfig-naming-conventions
@@ -171,7 +159,7 @@ csharp_new_line_before_else = true
 csharp_new_line_before_catch = true
 csharp_new_line_before_finally = true
 csharp_new_line_before_members_in_object_initializers = true
-# just a suggestion do to our JSON tests that use anonymous types to 
+# just a suggestion do to our JSON tests that use anonymous types to
 # represent json quite a bit (makes copy paste easier).
 csharp_new_line_before_members_in_anonymous_types = true
 csharp_new_line_between_query_expression_clauses = true

src/ApiGenerator/ApiGenerator.csproj

@@ -4,15 +4,16 @@
     <OutputType>Exe</OutputType>
     <TargetFramework>net6.0</TargetFramework>
     <IsPackable>false</IsPackable>
-    
+
     <NoWarn>CS1591;NU1701</NoWarn>
     <PreserveCompilationContext>true</PreserveCompilationContext>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="CSharpier.Core" Version="0.27.3" />
     <PackageReference Include="Glob" Version="1.1.9" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="NSwag.Core.Yaml" Version="14.0.7" />
+    <PackageReference Include="NSwag.Core" Version="14.0.7" />
+    <PackageReference Include="YamlDotNet" Version="15.1.2" />
     <PackageReference Include="SemanticVersioning" Version="2.0.2" />
     <PackageReference Include="ShellProgressBar" Version="5.2.0" />
     <PackageReference Include="Spectre.Console" Version="0.48.0" />

src/ApiGenerator/Configuration/GeneratorLocations.cs

@@ -31,44 +31,42 @@
 
 namespace ApiGenerator.Configuration
 {
-    public static class GeneratorLocations
-    {
-        // @formatter:off — disable formatter after this line
-		public static string OpenApiSpecFile { get; } = $@"{Root}OpenSearch.openapi.json";
+	public static class GeneratorLocations
+	{
+		public static string OpenApiSpecFile { get; } = $"{Root}opensearch-openapi.yaml";
 
-        public static string OpenSearchNetFolder { get; } = $@"{Root}../../src/OpenSearch.Net/";
+		public static string OpenSearchNetFolder { get; } = $"{Root}../../src/OpenSearch.Net/";
 
-        public static string OpenSearchClientFolder { get; } = $@"{Root}../../src/OpenSearch.Client/";
+		public static string OpenSearchClientFolder { get; } = $"{Root}../../src/OpenSearch.Client/";
 
 		public static string LowLevelGeneratedFolder { get; } = $"{OpenSearchNetFolder}_Generated/";
 
 		public static string HighLevelGeneratedFolder { get; } = $"{OpenSearchClientFolder}_Generated/";
 
-		// @formatter:on — enable formatter after this line
+		public static string HighLevel(params string[] paths) => HighLevelGeneratedFolder + string.Join("/", paths);
 
-        public static string HighLevel(params string[] paths) => HighLevelGeneratedFolder + string.Join("/", paths);
-        public static string LowLevel(params string[] paths) => LowLevelGeneratedFolder + string.Join("/", paths);
+		public static string LowLevel(params string[] paths) => LowLevelGeneratedFolder + string.Join("/", paths);
 
-        public static readonly Assembly Assembly = typeof(Generator.ApiGenerator).Assembly;
+		public static readonly Assembly Assembly = typeof(Generator.ApiGenerator).Assembly;
 
-        private static string _root;
-        public static string Root
-        {
-            get
-            {
-                if (_root != null) return _root;
+		private static string _root;
 
-                var directoryInfo = new DirectoryInfo(Directory.GetCurrentDirectory());
+		public static string Root
+		{
+			get
+			{
+				if (_root != null) return _root;
 
-                var dotnetRun =
-                    directoryInfo.Name == "ApiGenerator" &&
-                    directoryInfo.Parent != null &&
-                    directoryInfo.Parent.Name == "src";
+				var directoryInfo = new DirectoryInfo(Directory.GetCurrentDirectory());
 
-                _root = dotnetRun ? "" : @"../../../";
-                return _root;
-            }
-        }
+				var dotnetRun =
+					directoryInfo.Name == "ApiGenerator" &&
+					directoryInfo.Parent != null &&
+					directoryInfo.Parent.Name == "src";
 
-    }
+				_root = dotnetRun ? "" : "../../../";
+				return _root;
+			}
+		}
+	}
 }

src/ApiGenerator/Configuration/Overrides/GlobalOverrides.cs

@@ -36,10 +36,10 @@ public class GlobalOverrides : EndpointOverridesBase
 
 		private GlobalOverrides() { }
 
-        public IDictionary<string, Dictionary<string, string>> ObsoleteEnumMembers { get; set; } = new Dictionary<string, Dictionary<string, string>>()
-        {
-            { "VersionType", new Dictionary<string, string>() { { "force", "Force is no longer accepted by the server as of 7.5.0 and will result in an error when used" } } }
-        };
+		public IDictionary<string, string> RenameEnums { get; } = new Dictionary<string, string>
+		{
+			{ "ExpandWildcard", "ExpandWildcards" }
+		};
 
         public override IDictionary<string, string> ObsoleteQueryStringParams { get; set; } = new Dictionary<string, string>
         {

src/ApiGenerator/Domain/ApiRequestParametersPatcher.cs

@@ -97,18 +97,8 @@ private static string CreateCSharpName(string queryStringKey, string endpointNam
             if (queryStringKey == "format" && endpointName == "text_structure.find_structure")
                 return "TextStructureFindStructureFormat";
 
-            var cased = queryStringKey.ToPascalCase();
-            switch (cased)
-            {
-                case "Type":
-                case "Index":
-                case "Source":
-                case "Script":
-                    return cased + "QueryString";
-                default:
-                    return cased;
-            }
-        }
+			return queryStringKey.ToPascalCase();
+		}
 
         private static IList<string> CreateSkipList(IEndpointOverrides local, ICollection<string> declaredKeys) =>
             CreateList(local, "skip", e => e.SkipQueryStringParams, declaredKeys);

src/ApiGenerator/Domain/Code/CsharpNames.cs

@@ -30,6 +30,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using ApiGenerator.Configuration;
+using ApiGenerator.Configuration.Overrides;
 using ApiGenerator.Generator;
 
 namespace ApiGenerator.Domain.Code
@@ -103,6 +104,7 @@ public string ResponseName
         public const string LowLevelClientNamespacePrefix = "LowLevel";
         public const string HighLevelClientNamespacePrefix = "";
         public const string ClientNamespaceSuffix = "Namespace";
+
         private static string CreateCSharpNamespace(string endpointNamespace)
         {
             switch (endpointNamespace)
@@ -203,5 +205,12 @@ public string GenericOrNonGenericResponseName
             : RequestName;
 
         public bool CustomResponseBuilderPerRequestOverride(out string call) => CodeConfiguration.ResponseBuilderInClientCalls.TryGetValue(RequestName, out call);
+
+		public static string GetEnumName(string schemaKey)
+		{
+			var enumName = schemaKey.Replace("_common", "").SplitPascalCase().ToPascalCase();
+			if (GlobalOverrides.Instance.RenameEnums.TryGetValue(enumName, out var renamed)) enumName = renamed;
+			return enumName;
+		}
     }
 }

src/ApiGenerator/Domain/RestApiSpec.cs

@@ -38,6 +38,7 @@ namespace ApiGenerator.Domain
     public class EnumDescription
     {
         public string Name { get; set; }
+		public bool IsFlag { get; set; }
         public IEnumerable<string> Options { get; set; }
     }
 
@@ -55,48 +56,6 @@ public class RestApiSpec
                 .GroupBy(e => e.CsharpNames.Namespace)
                 .ToImmutableSortedDictionary(kv => kv.Key, kv => kv.ToList().AsReadOnly());
 
-
-        private IEnumerable<EnumDescription> _enumDescriptions;
-        public IEnumerable<EnumDescription> EnumsInTheSpec
-        {
-            get
-            {
-                if (_enumDescriptions != null) return _enumDescriptions;
-
-                var urlParameterEnums = Endpoints
-					.Values
-					.SelectMany(e => e.Url.Params.Values)
-					.Where(p => !p.Skip && p.Options != null && p.Options.Any())
-					.Select(p => new EnumDescription
-					{
-						Name = p.ClsName,
-						Options = p.Options
-					})
-					.ToList();
-
-                var urlPartEnums = Endpoints
-					.Values
-					.SelectMany(e => e.Url.Parts, (e, part) => new { e, part })
-					.Where(p => p.part.Options != null && p.part.Options.Any())
-					.Select(p =>
-					{
-						var ns = p.e.CsharpNames.Namespace;
-						var m = p.e.CsharpNames.MethodName;
-						return new EnumDescription
-						{
-							Name = (!m.StartsWith(ns) ? ns : string.Empty) + m + p.part.Name.ToPascalCase(),
-							Options = p.part.Options
-						};
-					}).
-					ToList();
-
-                _enumDescriptions = urlPartEnums
-                    .Concat(urlParameterEnums)
-                    .DistinctBy(e => e.Name)
-                    .ToList();
-
-				return _enumDescriptions;
-            }
-        }
+        public ImmutableList<EnumDescription> EnumsInTheSpec { get; set; }
     }
 }

src/ApiGenerator/Domain/Specification/QueryParameters.cs

@@ -106,7 +106,6 @@ public string Obsolete
 
         public Deprecation Deprecated { get; set; }
 
-        public IEnumerable<string> Options { get; set; }
         public string QueryStringKey { get; set; }
 
         public bool RenderPartial { get; set; }

src/ApiGenerator/Domain/Specification/UrlPart.cs

@@ -145,7 +145,6 @@ public string Description
 
 		public string Name { get; set; }
         public string NameAsArgument => Name.ToCamelCase();
-        public IEnumerable<string> Options { get; set; }
         public bool Required { get; set; }
         public bool Deprecated { get; set; }
         public string Type { get; set; }

src/ApiGenerator/Extensions.cs

@@ -39,7 +39,7 @@ public static class Extensions
         /// <summary>
         /// Removes _ . but not an underscore at the start of the string, unless the string is _all or removeLeadingUnderscore == true.
         /// </summary>
-        private static readonly Regex RemovePunctuationExceptFirstUnderScore = new Regex(@"(?!^_(?!All$))[_\.]");
+        private static readonly Regex RemovePunctuationExceptFirstUnderScore = new(@"(?!^_(?!All$))[_\-\.: ]");
 
         public static IEnumerable<T> DistinctBy<T, TKey>(this IEnumerable<T> items, Func<T, TKey> property) =>
             items.GroupBy(property).Select(x => x.First());