using UnityEngine;
using System.Collections.Generic;

namespace Hallucinate.UI
{
    public static class MouseMetricsHelper
    {
        private static int _reportCount = 0;
        private static float _timer = 0f;
        private static int _lastPollingRate = 0;
        private static float _lastLatency = 0f;
        private static Vector2 _lastMousePos;

        public static (int pollingRate, float latencyMs) GetMetrics()
        {
            Update();
            return (_lastPollingRate, _lastLatency);
        }

        private static void Update()
        {
            _timer += Time.unscaledDeltaTime;
            
            // Count "reports" based on position changes (simulated polling rate)
            Vector2 currentPos = Input.mousePosition;
            if (currentPos != _lastMousePos)
            {
                _reportCount++;
                _lastMousePos = currentPos;
            }

            if (_timer >= 1f)
            {
                _lastPollingRate = (int)(_reportCount / _timer);
                _reportCount = 0;
                _timer = 0f;
            }

            // Dummy latency simulation (Input System doesn't expose raw hardware latency easily)
            // In a real scenario, this would involve timestamping HID reports
            _lastLatency = (1.0f / (Screen.currentResolution.refreshRateRatio.value > 0 ? (float)Screen.currentResolution.refreshRateRatio.value : 60f)) * 1000f;
        }
    }
}