#nullable disable
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using MCPForUnity.Editor.Helpers; // For Response class
using Newtonsoft.Json.Linq;
using UnityEngine;
using UnityEngine.SceneManagement;
namespace MCPForUnity.Editor.Tools.GameObjects
{
/// <summary>
/// Handles GameObject manipulation within the current scene (CRUD, find, components).
/// </summary>
[McpForUnityTool("manage_gameobject", AutoRegister = false)]
public static class ManageGameObject
{
// --- Main Handler ---
public static object HandleCommand(JObject @params)
{
if (@params == null)
{
return new ErrorResponse("Parameters cannot be null.");
}
string action = @params["action"]?.ToString().ToLower();
if (string.IsNullOrEmpty(action))
{
return new ErrorResponse("Action parameter is required.");
}
// Parameters used by various actions
JToken targetToken = @params["target"]; // Can be string (name/path) or int (instanceID)
string name = @params["name"]?.ToString();
// --- Usability Improvement: Alias 'name' to 'target' for modification actions ---
// If 'target' is missing but 'name' is provided, and we aren't creating a new object,
// assume the user meant "find object by name".
if (targetToken == null && !string.IsNullOrEmpty(name) && action != "create")
{
targetToken = name;
// We don't update @params["target"] because we use targetToken locally mostly,
// but some downstream methods might parse @params directly. Let's update @params too for safety.
@params["target"] = name;
}
// -------------------------------------------------------------------------------
string searchMethod = @params["searchMethod"]?.ToString().ToLower();
string tag = @params["tag"]?.ToString();
string layer = @params["layer"]?.ToString();
JToken parentToken = @params["parent"];
// Coerce string JSON to JObject for 'componentProperties' if provided as a JSON string
var componentPropsToken = @params["componentProperties"];
if (componentPropsToken != null && componentPropsToken.Type == JTokenType.String)
{
try
{
var parsed = JObject.Parse(componentPropsToken.ToString());
@params["componentProperties"] = parsed;
}
catch (Exception e)
{
McpLog.Warn($"[ManageGameObject] Could not parse 'componentProperties' JSON string: {e.Message}");
}
}
// --- Prefab Asset Check ---
// Prefab assets require different tools. Only 'create' (instantiation) is valid here.
string targetPath =
targetToken?.Type == JTokenType.String ? targetToken.ToString() : null;
if (
!string.IsNullOrEmpty(targetPath)
&& targetPath.EndsWith(".prefab", StringComparison.OrdinalIgnoreCase)
&& action != "create" // Allow prefab instantiation
)
{
return new ErrorResponse(
$"Target '{targetPath}' is a prefab asset. " +
$"Use 'manage_asset' with action='modify' for prefab asset modifications, " +
$"or 'manage_prefabs' with action='open_stage' to edit the prefab in isolation mode."
);
}
// --- End Prefab Asset Check ---
try
{
switch (action)
{
// --- Primary lifecycle actions (kept in manage_gameobject) ---
case "create":
return GameObjectCreate.Handle(@params);
case "modify":
return GameObjectModify.Handle(@params, targetToken, searchMethod);
case "delete":
return GameObjectDelete.Handle(targetToken, searchMethod);
case "duplicate":
return GameObjectDuplicate.Handle(@params, targetToken, searchMethod);
case "move_relative":
return GameObjectMoveRelative.Handle(@params, targetToken, searchMethod);
default:
return new ErrorResponse($"Unknown action: '{action}'.");
}
}
catch (Exception e)
{
McpLog.Error($"[ManageGameObject] Action '{action}' failed: {e}");
return new ErrorResponse($"Internal error processing action '{action}': {e.Message}");
}
}
}
}
