using UnityEngine;

namespace MegaKoop.Networking
{
    /// <summary>
    /// Thin bootstrap around Netcode for GameObjects start/stop.
    /// Uses compile guards so the project compiles without NGO.
    /// </summary>
    public static class NetworkBootstrap
    {
        public static bool StartHost(string gameScene = "GameScene")
        {
#if UNITY_NETCODE || NETCODE_PRESENT
            var nm = Unity.Netcode.NetworkManager.Singleton;
            if (nm == null)
            {
                Debug.LogError("[NetworkBootstrap] NetworkManager.Singleton not found in scene.");
                return false;
            }
            Object.DontDestroyOnLoad(nm.gameObject);
            bool ok = nm.StartHost();
            if (!ok)
            {
                Debug.LogError("[NetworkBootstrap] StartHost failed.");
                return false;
            }
            // Prefer NGO SceneManager if available
            if (nm.SceneManager != null)
            {
                nm.SceneManager.LoadScene(gameScene, Unity.Netcode.AdditiveScenes.NetworkSceneManager.LoadSceneMode.Single);
            }
            else
            {
                UnityEngine.SceneManagement.SceneManager.LoadScene(gameScene);
            }
            return true;
#else
            Debug.LogWarning("[NetworkBootstrap] Netcode for GameObjects not present. Define UNITY_NETCODE or NETCODE_PRESENT and add the package.");
            return false;
#endif
        }

        public static bool StartClient(string gameScene = "GameScene")
        {
#if UNITY_NETCODE || NETCODE_PRESENT
            var nm = Unity.Netcode.NetworkManager.Singleton;
            if (nm == null)
            {
                Debug.LogError("[NetworkBootstrap] NetworkManager.Singleton not found in scene.");
                return false;
            }
            Object.DontDestroyOnLoad(nm.gameObject);
            bool ok = nm.StartClient();
            if (!ok)
            {
                Debug.LogError("[NetworkBootstrap] StartClient failed.");
                return false;
            }
            // Client will be moved to scene by NGO server scene management
            return true;
#else
            Debug.LogWarning("[NetworkBootstrap] Netcode for GameObjects not present. Define UNITY_NETCODE or NETCODE_PRESENT and add the package.");
            return false;
#endif
        }

        public static void Stop()
        {
#if UNITY_NETCODE || NETCODE_PRESENT
            var nm = Unity.Netcode.NetworkManager.Singleton;
            if (nm == null) return;
            if (nm.IsServer || nm.IsHost) nm.Shutdown(true);
            else if (nm.IsClient) nm.Shutdown();
#endif
        }
    }
}