using UnityEngine;
using Valve.VR;
using System;
using OpenVRUtil;

public class DashboardOverlay : MonoBehaviour {
    public new Camera camera;
    public RenderTexture renderTexture;
    private ulong dashboardHandle = OpenVR.k_ulOverlayHandleInvalid;
    private ulong thumbnailHandle = OpenVR.k_ulOverlayHandleInvalid;

    private void Start() {
        OpenVRUtil.System.InitOpenVR();

        (dashboardHandle, thumbnailHandle) = Overlay.CreateDashboardOverlay("f3.beamy.dash", "Beamy Panel");

        var filePath = Application.streamingAssetsPath + "/potionGroundy.png";
        Overlay.SetOverlayFromFile(thumbnailHandle, filePath);

        renderTexture = new RenderTexture(1024, 768, 16, RenderTextureFormat.ARGBFloat);
        camera.targetTexture = renderTexture;

        Overlay.SetOverlaySize(dashboardHandle, 2.5f);
        Overlay.FlipOverlayVertical(dashboardHandle);
    }

    private void Update() {
        Overlay.SetOverlayRenderTexture(dashboardHandle, renderTexture);
    }

    private void OnApplicationQuit() {
        Overlay.DestroyOverlay(dashboardHandle);
    }

    private void OnDestroy() {
        OpenVRUtil.System.ShutdownOpenVR();
    }
}