using UnityEngine;
using Valve.VR;
using System;

public class WatchOverlay : MonoBehaviour {
    private void Start() {
        InitOpenVR();
    }

    private void OnDestroy() {
        ShutdownOpenVR();
    }

    private void InitOpenVR() {
        if (OpenVR.System != null) return;
    
        var error = EVRInitError.None;
        OpenVR.Init(ref error, EVRApplicationType.VRApplication_Overlay);
        if (error != EVRInitError.None) {
            throw new Exception("Failed to initialize OpenVR: " + error);
        }
    }

    private void ShutdownOpenVR()
    {
        if (OpenVR.System != null)
        {
            OpenVR.Shutdown();
        }
    }
}