using System;
using UnityEngine;
using UnityEngine.UI;

namespace CTS
{
	public class CTSFps : MonoBehaviour
	{
		private const string cFormat = "FPS {0}, MS {1:0.00}";

		private const float cMeasurePeriod = 1f;

		private float m_currentFps;

		private float m_currentMs;

		private float m_fpsAccumulator;

		private float m_fpsNextPeriod;

		public string m_CTSVersion;

		public string m_OS;

		public string m_deviceName;

		public string m_deviceType;

		public string m_deviceModel;

		public string m_platform;

		public string m_processor;

		public string m_ram;

		public string m_gpu;

		public string m_gpuDevice;

		public string m_gpuVendor;

		public string m_gpuSpec;

		public string m_gpuRam;

		public string m_gpuCapabilities;

		public string m_screenInfo;

		public string m_quality;

		public Text m_fpsText;

		public Text m_CTSVersionText;

		public Text m_OSText;

		public Text m_deviceText;

		public Text m_systemText;

		public Text m_gpuText;

		public Text m_gpuCapabilitiesText;

		public Text m_screenInfoText;

		public int FPS => (int)m_currentFps;

		private void Start()
		{
			m_fpsNextPeriod = Time.realtimeSinceStartup + 1f;
			try
			{
				m_CTSVersion = "CTS v" + CTSConstants.MajorVersion + "." + CTSConstants.MinorVersion + "." + CTSConstants.PatchVersion + ", Unity v" + Application.unityVersion;
				m_deviceName = SystemInfo.deviceName;
				m_deviceType = SystemInfo.deviceType.ToString();
				m_OS = SystemInfo.operatingSystem;
				m_platform = Application.platform.ToString();
				m_processor = SystemInfo.processorType + " - " + SystemInfo.processorCount + " cores";
				m_gpu = SystemInfo.graphicsDeviceName;
				m_gpuDevice = SystemInfo.graphicsDeviceType.ToString() + " - " + SystemInfo.graphicsDeviceVersion;
				m_gpuVendor = SystemInfo.graphicsDeviceVendor;
				m_gpuRam = SystemInfo.graphicsMemorySize.ToString();
				m_gpuCapabilities = m_gpuCapabilities + "TA: " + SystemInfo.supports2DArrayTextures;
				m_gpuCapabilities = m_gpuCapabilities + ", MT: " + SystemInfo.maxTextureSize;
				m_gpuCapabilities = m_gpuCapabilities + ", NPOT: " + SystemInfo.npotSupport;
				m_gpuCapabilities = m_gpuCapabilities + ", RTC: " + SystemInfo.supportedRenderTargetCount;
				m_gpuCapabilities = m_gpuCapabilities + ", CT: " + SystemInfo.copyTextureSupport;
				int graphicsShaderLevel = SystemInfo.graphicsShaderLevel;
				if (graphicsShaderLevel >= 10 && graphicsShaderLevel <= 99)
				{
					int num = (graphicsShaderLevel /= 10);
					m_gpuSpec = "SM: " + num + "." + graphicsShaderLevel / 10;
				}
				else
				{
					m_gpuSpec = "SM: N/A";
				}
				int graphicsMemorySize = SystemInfo.graphicsMemorySize;
				if (graphicsMemorySize > 0)
				{
					m_gpuSpec = m_gpuSpec + ", VRAM: " + graphicsMemorySize + " MB";
				}
				else
				{
					m_gpuSpec = m_gpuSpec + ", VRAM: " + graphicsMemorySize + " N/A";
				}
				int systemMemorySize = SystemInfo.systemMemorySize;
				if (systemMemorySize > 0)
				{
					m_ram = systemMemorySize.ToString();
				}
				else
				{
					m_ram = "N/A";
				}
				Resolution currentResolution = Screen.currentResolution;
				m_screenInfo = currentResolution.width + "x" + currentResolution.height + " @" + currentResolution.refreshRate + " Hz [window size: " + Screen.width + "x" + Screen.height;
				float dpi = Screen.dpi;
				if (dpi > 0f)
				{
					m_screenInfo = m_screenInfo + ", DPI: " + dpi + "]";
				}
				else
				{
					m_screenInfo += "]";
				}
				m_deviceModel = SystemInfo.deviceModel;
				m_quality = QualitySettings.GetQualityLevel().ToString();
			}
			catch (Exception ex)
			{
				Debug.Log("Problem getting system metrics : " + ex.Message);
			}
			if (m_CTSVersionText != null)
			{
				m_CTSVersionText.text = m_CTSVersion;
			}
			if (m_OSText != null)
			{
				m_OSText.text = m_OS;
			}
			if (m_deviceText != null)
			{
				m_deviceText.text = m_deviceName + ", " + m_platform + ", " + m_deviceType;
			}
			if (m_systemText != null)
			{
				m_systemText.text = m_deviceModel + ", " + m_processor + ", " + m_ram + " GB";
			}
			if (m_gpuText != null)
			{
				m_gpuText.text = m_gpu + ", " + m_gpuSpec + ", QUAL: " + m_quality;
			}
			if (m_gpuCapabilitiesText != null)
			{
				m_gpuCapabilitiesText.text = m_gpuDevice + ", " + m_gpuCapabilities;
			}
			if (m_screenInfoText != null)
			{
				m_screenInfoText.text = m_screenInfo;
			}
		}

		private void Update()
		{
			m_fpsAccumulator += 1f;
			if (Time.realtimeSinceStartup > m_fpsNextPeriod)
			{
				m_currentFps = m_fpsAccumulator / 1f;
				m_currentMs = 1000f / m_currentFps;
				m_fpsAccumulator = 0f;
				m_fpsNextPeriod = Time.realtimeSinceStartup + 1f;
				if (m_fpsText != null)
				{
					m_fpsText.text = $"FPS {m_currentFps}, MS {m_currentMs:0.00}";
				}
			}
		}
	}
}