using UnityEngine;

public class PerfHud : MonoBehaviour
{
    public static bool Enabled = true;

    [Header("HUD")]
    public bool show = true;
    public int topN = 12;
    public bool sortByMax = false;
    public KeyCode toggleKey = KeyCode.F8;

    float _fps;

    void Awake()
    {
        DontDestroyOnLoad(gameObject);
    }

    void Update()
    {
        if (Input.GetKeyDown(toggleKey))
        {
            Enabled = !Enabled;
            show = Enabled;
        }

        // FPS non lissé
        _fps = 1f / Time.unscaledDeltaTime;
    }

    void LateUpdate()
    {
        // Reset stats pour la frame suivante
        Perf.ResetFrame();
    }

    void OnGUI()
    {
        if (!show) return;

        var rect = new Rect(10, 10, 520, 26);
        GUI.Label(rect, $"FPS: {_fps:F1} | Frame: {(Time.unscaledDeltaTime * 1000f):F2} ms | Toggle: {toggleKey}");

        rect.y += 22;
        GUI.Label(rect, sortByMax ? "Top (MAX ms)" : "Top (TOTAL ms)");
        rect.y += 18;

        var top = Perf.GetTop(topN, sortByMax);
        foreach (var s in top)
        {
            GUI.Label(new Rect(10, rect.y, 900, 20),
                $"{s.name,-35}  calls:{s.calls,3}  total:{s.msTotal,7:F2}ms  avg:{s.MsAvg,6:F2}ms  max:{s.msMax,6:F2}ms");
            rect.y += 18;
        }
    }
}