using AKSWebBrowser.Commen;
using CPF.Windows;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace AksWebBrowser.Devices
{
    public class LhtCF
    {
        public LhtCF() { }

        /// <summary>
        /// 人脸比对
        /// </summary>
        /// <param name="code"></param>
        /// <returns></returns>
        public static string LhtCFFace(string code,string face)
        {
            string result = string.Empty;
            try
            {
                int status = libLhtCFs.CF_Init();
               // Log.Info("初始化函数" + status);
                if (status == 0)
                {
                    status = libLhtCFs.CF_GetCameraStatus(0);
                   // Log.Info("获取摄像头状态" + status);
                    if (status == 0)
                    {
                        status = libLhtCFs.CF_OpenCamera();
                       // Log.Info("打开摄像头" + status);
                        if (status == 0)
                        {
                            status = libLhtCFs.CF_CreatWindow(0, 0, 300, 800, 600, 500);
                           // Log.Info("创建视频预览窗口" + status);
                            if (status == 0)
                            {
                                status = libLhtCFs.CF_StartLiveDetectEx(10000);
                               // Log.Info("活体检测超时时间:" + status);
                                if (status == 0)
                                {
                                    string time = DateTime.Now.ToString("yyyyMMddHHmmss", DateTimeFormatInfo.InvariantInfo);
                                    var tmpFile = "/tmp/" + time + ".jpg";
                                    byte[] faceA = Convert.FromBase64String(face);
                                    byte[] faceB = Encoding.UTF8.GetBytes(tmpFile);
                                    status = libLhtCFs.CF_FaceCompare(faceA, faceB, 60);
                                   // Log.Info("人脸比对:" + status);

                                    //停止活体检测
                                    Task.Run(() => { libLhtCFs.CF_StopLiveDetect(); });
                                }
                                //关闭视频预览窗口
                                Task.Run(() => { libLhtCFs.CF_CloseWindow(0); });
                            }
                            //关闭摄像头
                            Task.Run(() => { libLhtCFs.CF_CloseCamera(); });
                        }
                    }
                }

            }
            catch (Exception ex)
            {
                //Log.Error("双目摄像头采集人脸异常：" + ex.Message);
            }
            return "";
        }
    }

    class libLhtCFs
    {
        // 检测回调函数定义
        [System.Runtime.InteropServices.UnmanagedFunctionPointerAttribute(System.Runtime.InteropServices.CallingConvention.Cdecl)]
        public delegate void DetectCallBack(int nEventId, IntPtr lpContext);

        //RGB数据回调函数定义
        [System.Runtime.InteropServices.UnmanagedFunctionPointerAttribute(System.Runtime.InteropServices.CallingConvention.Cdecl)]
        public delegate void GetVideoStream([MarshalAs(UnmanagedType.LPArray)] byte[] rgbData, int width, int height);

        //mjpeg数据回调函数定义
        [System.Runtime.InteropServices.UnmanagedFunctionPointerAttribute(System.Runtime.InteropServices.CallingConvention.Cdecl)]
        public delegate void GetMjpegStream([MarshalAs(UnmanagedType.LPArray)] byte[] mjpegData, int dataLen);

        //初始化
        [DllImport("libLhtCF", EntryPoint = "CF_Init", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_Init();

        //反初始化函数
        [DllImport("libLhtCF", EntryPoint = "CF_Uninit", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_Uninit();

        //反初始化函数
        [DllImport("libLhtCF", EntryPoint = "CF_GetCameraStatus", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_GetCameraStatus(int status);

        //设置检测回调函数
        [DllImport("libLhtCF", EntryPoint = "CF_GetCameraStatus", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_SetDetectCallBack(DetectCallBack pCB, IntPtr lpContext);

        //设置彩色摄像头视频流回调
        [DllImport("libLhtCF", EntryPoint = "SetCamADataCallback", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int SetCamADataCallback(GetVideoStream cb);

        //设置红外摄像头视频流回调
        [DllImport("libLhtCF", EntryPoint = "SetCamBDataCallback", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int SetCamBDataCallback(GetVideoStream cb);

        //设置彩色摄像头mjpeg数据流回调
        [DllImport("libLhtCF", EntryPoint = "SetCamADataCallbackEx", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int SetCamADataCallbackEx(GetMjpegStream cb);

        //设置红外摄像头mjpeg数据流回调
        [DllImport("libLhtCF", EntryPoint = "SetCamBDataCallbackEx", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int SetCamBDataCallbackEx(GetMjpegStream cb);

        //设置分辨率
        [DllImport("libLhtCF", EntryPoint = "CF_SetResolution", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_SetResolution(int width, int height);

        //打开摄像头
        [DllImport("libLhtCF", EntryPoint = "CF_OpenCamera", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_OpenCamera();

        //关闭摄像头
        [DllImport("libLhtCF", EntryPoint = "CF_CloseCamera", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_CloseCamera();

        //开始活体检测
        [DllImport("libLhtCF", EntryPoint = "CF_StartLiveDetect", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_StartLiveDetect();

        //活体检测超时时间
        [DllImport("libLhtCF", EntryPoint = "CF_StartLiveDetectEx", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_StartLiveDetectEx(int timeout);

        //停止活体检测
        [DllImport("libLhtCF", EntryPoint = "CF_StopLiveDetect", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_StopLiveDetect();

        //获取采集图像
        [DllImport("libLhtCF", EntryPoint = "CF_GetImage", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_GetImage(int nImageType, [MarshalAs(UnmanagedType.LPArray)] byte[] FilePath);

        //人脸比对
        [DllImport("libLhtCF", EntryPoint = "CF_GetImage", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_FaceCompare(byte[] picPathA, byte[] picPathB, int score);

        //创建视频预览窗口
        [DllImport("libLhtCF", EntryPoint = "CF_CreatWindow", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_CreatWindow(int nWndType, long hWnd, int iX, int iY, int iWidth, int iHeight);

        //关闭视频预览窗口
        [DllImport("libLhtCF", EntryPoint = "CF_CloseWindow", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int CF_CloseWindow(int nWndType);
    }
}