Fixes using local language model in OpenApiSpecGeneratorPlugin. Closes #810 (#813)

Author: waldekmastykarz

dev-proxy-plugins/RequestLogs/OpenApiSpecGeneratorPlugin.cs

@@ -451,14 +451,20 @@ private string GetLastNonTokenSegment(string[] segments)
     private async Task<string> GetOperationId(string method, string serverUrl, string parametrizedPath)
     {
         var prompt = $"For the specified request, generate an operation ID, compatible with an OpenAPI spec. Respond with just the ID in plain-text format. For example, for request such as `GET https://api.contoso.com/books/{{books-id}}` you return `getBookById`. For a request like `GET https://api.contoso.com/books/{{books-id}}/authors` you return `getAuthorsForBookById`. Request: {method.ToUpper()} {serverUrl}{parametrizedPath}";
-        var id = await Context.LanguageModelClient.GenerateCompletion(prompt);
+        ILanguageModelCompletionResponse? id = null;
+        if (await Context.LanguageModelClient.IsEnabled()) {
+            id = await Context.LanguageModelClient.GenerateCompletion(prompt);
+        }
         return id?.Response ?? $"{method}{parametrizedPath.Replace('/', '.')}";
     }
 
     private async Task<string> GetOperationDescription(string method, string serverUrl, string parametrizedPath)
     {
         var prompt = $"You're an expert in OpenAPI. You help developers build great OpenAPI specs for use with LLMs. For the specified request, generate a one-sentence description. Respond with just the description. For example, for a request such as `GET https://api.contoso.com/books/{{books-id}}` you return `Get a book by ID`. Request: {method.ToUpper()} {serverUrl}{parametrizedPath}";
-        var description = await Context.LanguageModelClient.GenerateCompletion(prompt);
+        ILanguageModelCompletionResponse? description = null;
+        if (await Context.LanguageModelClient.IsEnabled()) {
+            description = await Context.LanguageModelClient.GenerateCompletion(prompt);
+        }
         return description?.Response ?? $"{method} {parametrizedPath}";
     }