fix: empty options usecase in ExamplesDocGen

.github/workflows/docs.yml

@@ -13,6 +13,7 @@ env:
 on:
   release:
     types: [ published ]
+  workflow_dispatch:
 
 jobs:
   generate-and-push-docs:

docs/ExamplesDocGen/Program.cs

@@ -36,24 +36,38 @@ private static string ParseConfigNode(YamlNode node)
         if (testClassName.Contains("Legacy"))
             testClassName = testClassName.Replace("Legacy", "");
 
-        var yamlStream = new YamlStream();
-        var yamlDocument = new YamlDocument(codegenObj["options"]);
-        yamlStream.Documents.Add(yamlDocument);
-        using var optionsWriter = new StringWriter();
-        yamlStream.Save(optionsWriter, false);
-        var optionsStr = optionsWriter.ToString().Trim().TrimEnd('.');
+        var optionsStr = StringifyOptions(codegenObj);
 
         return $"""
                 <details>
                 <summary>{projectName.Replace("Example", "")}</summary>
 
                 ## Engine `{item["engine"]}`: [{projectName}]({outputDirectory})
-                ### [Schema]({item["schema"][0]}) | [Queries]({item["queries"][0]}) | [End2End Test](end2end/{testProject}/{testClassName}.cs)
+                ### [Schema]({GetYamlFirstValue(item["schema"])}) | [Queries]({GetYamlFirstValue(item["queries"])}) | [End2End Test](end2end/{testProject}/{testClassName}.cs)
                 ### Config
                 ```yaml
                 {optionsStr}```
 
                 </details>
                 """;
     }
+
+    private static string GetYamlFirstValue(YamlNode node)
+    {
+        return node is YamlSequenceNode sequence
+            ? sequence[0].ToString()
+            : node.ToString();
+    }
+
+    private static string StringifyOptions(YamlMappingNode codegenObj)
+    {
+        if (!codegenObj.Children.ContainsKey(new YamlScalarNode("options")))
+            return string.Empty;
+
+        var yamlStream = new YamlStream();
+        yamlStream.Documents.Add(new YamlDocument(codegenObj["options"]));
+        using var writer = new StringWriter();
+        yamlStream.Save(writer, false);
+        return writer.ToString().Trim().TrimEnd('.');
+    }
 }