Fixes operation id`s of paths with type cast segments (#493)

* Fix operation id of paths with type cast segments

* Update integration tests

* Update conditional and add comment

* Update release notes

Author: irvinesunday

src/Microsoft.OpenApi.OData.Reader/Common/EdmModelHelper.cs

@@ -179,7 +179,9 @@ s is ODataOperationSegment ||
                 {
                     items.Add(navPropSegment.NavigationProperty.Name);
                 }
-                else if (segment is ODataTypeCastSegment typeCastSegment && path.Kind == ODataPathKind.NavigationProperty)
+                else if (segment is ODataTypeCastSegment typeCastSegment
+                    && path.Kind != ODataPathKind.TypeCast // ex: ~/NavSource/NavProp/TypeCast
+                    && !(path.Kind == ODataPathKind.DollarCount && path.Segments.ElementAt(path.Segments.Count - 2)?.Kind == ODataSegmentKind.TypeCast)) // ex: ~/NavSource/NavProp/TypeCast/$count
                 {
                     // Only the last OData type cast segment identifier is added to the operation id
                     items.Remove(previousTypeCastSegmentId);
@@ -352,28 +354,35 @@ internal static string GenerateODataTypeCastPathOperationIdPrefix(ODataPath path
                 string listOrGet = includeListOrGetPrefix ? (complexSegment.Property.Type.IsCollection() ? "List" : "Get") : null;
                 operationId = GenerateComplexPropertyPathOperationId(path, listOrGet);
             }
-            else if (secondLastSegment as ODataNavigationPropertySegment is not null || isIndexedCollValuedNavProp)
+            else if (secondLastSegment is ODataNavigationPropertySegment navPropSegment)
             {
-                string listOrGet = null;
+                string prefix = null;
                 if (includeListOrGetPrefix)
                 {
-                    listOrGet = !isIndexedCollValuedNavProp && (secondLastSegment as ODataNavigationPropertySegment)?.NavigationProperty.TargetMultiplicity() == EdmMultiplicity.Many ? "List" : "Get";
+                    prefix = navPropSegment?.NavigationProperty.TargetMultiplicity() == EdmMultiplicity.Many ? "List" : "Get";
                 }
 
-                operationId = GenerateNavigationPropertyPathOperationId(path, listOrGet);
+                operationId = GenerateNavigationPropertyPathOperationId(path, prefix);
             }
-            else if (secondLastSegment is ODataKeySegment keySegment && !isIndexedCollValuedNavProp)
+            else if (secondLastSegment is ODataKeySegment keySegment)
             {
-                string entityTypeName = keySegment.EntityType.Name;
-                string getPrefix = includeListOrGetPrefix ? "Get" : null;
-                string operationName = $"{getPrefix}{Utils.UpperFirstChar(entityTypeName)}";
-                if (keySegment.IsAlternateKey)
-                {
-                    string alternateKeyName = string.Join("", keySegment.Identifier.Split(',').Select(static x => Utils.UpperFirstChar(x)));
-                    operationName = $"{operationName}By{alternateKeyName}";
+                if (isIndexedCollValuedNavProp)
+                {
+                    operationId = GenerateNavigationPropertyPathOperationId(path, "Get");
                 }
-                operationId = (entitySet != null) ? entitySet.Name : singleton.Name;
-                operationId += $".{entityTypeName}.{operationName}";
+                else
+                {
+                    string entityTypeName = keySegment.EntityType.Name;
+                    string getPrefix = includeListOrGetPrefix ? "Get" : null;
+                    string operationName = $"{getPrefix}{Utils.UpperFirstChar(entityTypeName)}";
+                    if (keySegment.IsAlternateKey)
+                    {
+                        string alternateKeyName = string.Join("", keySegment.Identifier.Split(',').Select(static x => Utils.UpperFirstChar(x)));
+                        operationName = $"{operationName}By{alternateKeyName}";
+                    }
+                    operationId = (entitySet != null) ? entitySet.Name : singleton.Name;
+                    operationId += $".{entityTypeName}.{operationName}";
+                }
             }
             else if (secondLastSegment is ODataNavigationSourceSegment)
             {

src/Microsoft.OpenApi.OData.Reader/Microsoft.OpenAPI.OData.Reader.csproj

@@ -15,7 +15,7 @@
     <TargetFrameworks>netstandard2.0</TargetFrameworks>
     <PackageId>Microsoft.OpenApi.OData</PackageId>
     <SignAssembly>true</SignAssembly>
-    <Version>1.6.0-preview.7</Version>
+    <Version>1.6.0-preview.8</Version>
     <Description>This package contains the codes you need to convert OData CSDL to Open API Document of Model.</Description>
     <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
     <PackageTags>Microsoft OpenApi OData EDM</PackageTags>
@@ -29,6 +29,7 @@
 - Adds delete operation for non-contained navigation properties only if explicitly allowed via annotation #483
 - Appends parameters and fixes operation ids of navigation property paths generated via composable functions #486
 - Use alternate keys in the generation of operation ids of operations and navigation property alternate paths #488
+- Fixes operation ids of paths with type cast segments #492
     </PackageReleaseNotes>
     <AssemblyName>Microsoft.OpenApi.OData.Reader</AssemblyName>
     <AssemblyOriginatorKeyFile>..\..\tool\Microsoft.OpenApi.OData.snk</AssemblyOriginatorKeyFile>