using CScript.Entity;
using CScript.Net;
using OpenCVForUnity.CoreModule;
using OpenCVForUnity.ImgprocModule;
using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using UnityEngine;

namespace CScript.Utilities
{
    public static class AppUtil
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="netMeshData"></param>
        /// <returns></returns>
        public static byte[] ParseData(NetMeshData netMeshData)
        {
            //1 colorList 标识1个字节  长度两个字节   内容 长度*2个字节
            //2 sideVertexList
            //3 frontVertexList
            //4 uvList
            //5 texture
            //6 frontTriangles
            //7 sideTriangles
            int tempInfoLength = 0;
            List<byte> infos = new List<byte>();

            byte colorSigh = (byte)1;
            byte[] colorLength = BitConverter.GetBytes(netMeshData.netColorList.Count);
            //List<byte> colorBytes =new List<byte>(netMeshData.colorList);

            //infos.Add(colorSigh);
            //infos.AddRange(colorLength);
            //infos.AddRange(colorBytes);

            byte sideVertexSigh = (byte)2;
            tempInfoLength = netMeshData.netSideVertexList.Count * 4;
            byte[] sideVertexLength = BitConverter.GetBytes(tempInfoLength);
            List<byte> sideVertexBytes = new List<byte>(tempInfoLength);
            for (int i = 0, count = netMeshData.netSideVertexList.Count; i < count; i++)
            {
                sideVertexBytes.AddRange(BitConverter.GetBytes(netMeshData.netSideVertexList[i]));
            }

            infos.Add(sideVertexSigh);
            infos.AddRange(sideVertexLength);
            infos.AddRange(sideVertexBytes);


            byte frontVertexSigh = (byte)3;
            tempInfoLength = netMeshData.netFrontVertexList.Count * 4;
            byte[] frontVertexLength = BitConverter.GetBytes(tempInfoLength);
            List<byte> frontVertexBytes = new List<byte>(tempInfoLength);
            for (int i = 0, count = netMeshData.netFrontVertexList.Count; i < count; i++)
            {
                frontVertexBytes.AddRange(BitConverter.GetBytes(netMeshData.netFrontVertexList[i]));
            }

            infos.Add(frontVertexSigh);
            infos.AddRange(frontVertexLength);
            infos.AddRange(frontVertexBytes);

            byte uvSigh = (byte)4;
            tempInfoLength = netMeshData.netUvList.Count * 4;
            byte[] uvLength = BitConverter.GetBytes(tempInfoLength);
            List<byte> uvBytes = new List<byte>(tempInfoLength);
            for (int i = 0, count = netMeshData.netUvList.Count; i < count; i++)
            {
                uvBytes.AddRange(BitConverter.GetBytes(netMeshData.netUvList[i]));
            }

            infos.Add(uvSigh);
            infos.AddRange(uvLength);
            infos.AddRange(uvBytes);


            byte photoSigh = (byte)5;
            //byte[] photoByte = netMeshData.texture.EncodeToPNG();
            //byte[] photoLength = BitConverter.GetBytes(photoByte.Length);
            byte[] photoLength = BitConverter.GetBytes(netMeshData.netTexture.Count);

            infos.Add(photoSigh);
            infos.AddRange(photoLength);
            //infos.AddRange(photoByte);
            infos.AddRange(netMeshData.netTexture);

            byte frontTriangleSigh = (byte)6;
            tempInfoLength = netMeshData.netFrontTriangles.Count * 4;
            byte[] frontTriangleLength = BitConverter.GetBytes(tempInfoLength);
            List<byte> frontTriangleBytes = new List<byte>(tempInfoLength);
            for (int i = 0, count = netMeshData.netFrontTriangles.Count; i < count; i++)
            {
                frontTriangleBytes.AddRange(BitConverter.GetBytes(netMeshData.netFrontTriangles[i]));
            }


            infos.Add(frontTriangleSigh);
            infos.AddRange(frontTriangleLength);
            infos.AddRange(frontTriangleBytes);

            byte sideTriangleSigh = (byte)7;
            tempInfoLength = netMeshData.netSideTriangles.Count * 4;
            byte[] sideTriangleLength = BitConverter.GetBytes(tempInfoLength);
            List<byte> sideTriangleBytes = new List<byte>(tempInfoLength);
            for (int i = 0, count = netMeshData.netSideTriangles.Count; i < count; i++)
            {
                sideTriangleBytes.AddRange(BitConverter.GetBytes(netMeshData.netSideTriangles[i]));
            }

            infos.Add(sideTriangleSigh);
            infos.AddRange(sideTriangleLength);
            infos.AddRange(sideTriangleBytes);

            int total = infos.Count;
            List<byte> allInfos = new List<byte>();
            byte infoSigh = 101;
            allInfos.Add(infoSigh);
            allInfos.AddRange(BitConverter.GetBytes(total));
            allInfos.AddRange(infos);

            return allInfos.ToArray();
        }

        public static NetMeshData ParseBinary(byte[] message)
        {
            int index = 0;
            NetMeshData netMeshData = new NetMeshData();
            byte messageID = message[index];
            if (messageID == 101)
            {
                //0 是id 101
                int infoLenght = BitConverter.ToInt32(message, 0);
                byte[] totalLenth = new byte[4];
                index += 1;//1
                //1-4 包内容长度
                Array.Copy(message, index, totalLenth, 0, 4);
                index += 4;//5
                int totalCount = BitConverter.ToInt32(totalLenth, 0);
                // 5 color 标识
                byte colorSign = message[index];
                index += 1;
                if (colorSign == 1)
                {
                    //byte[] colorLength = new byte[4];
                    //Array.Copy(message, index, colorLength, 0, 4);
                    //index += 4;
                    //int colorCount = BitConverter.ToInt32(colorLength, 0);
                    //Debug.LogError(message[index] +"_" +message[index+1]);
                    // netMeshData.colorList = new byte[colorCount];
                    //  Array.Copy(message, index, netMeshData.colorList, 0, colorCount);
                    // index += colorCount;
                }
                // sideVertexList
                byte sideVertexSign = message[index];
                if (sideVertexSign == 2)
                {
                    int[] sideVertexInfos = GetInfoValues(message, ref index);
                    netMeshData.netSideVertexList.AddRange(sideVertexInfos);
                }
                // frontVertexList
                byte frontVertexSign = message[index];
                if (frontVertexSign == 3)
                {
                    int[] frontVertexInfos = GetInfoValues(message, ref index);
                    netMeshData.netFrontVertexList.AddRange(frontVertexInfos);
                }

                //uvList
                byte uvVertexSign = message[index];
                if (uvVertexSign == 4)
                {
                    int[] uvInfos = GetInfoValues(message, ref index);
                    netMeshData.netUvList.AddRange(uvInfos);
                }
                // texture

                byte textureSign = message[index];
                if (textureSign == 5)
                {
                    index += 1;
                    byte[] textureLength = new byte[4];
                    Array.Copy(message, index, textureLength, 0, 4);
                    index += 4;
                    int textureCount = BitConverter.ToInt32(textureLength, 0);
                    byte[] tempBytes = new byte[textureCount];
                    Array.Copy(message, index, tempBytes, 0, textureCount);
                    // netMeshData.texture = ByteToTex2d(tempBytes);
                    netMeshData.netTexture.AddRange(tempBytes);
                    index += textureCount;

                }

                //frontTriangles 
                byte frontTrianglesSign = message[index];
                if (frontTrianglesSign == 6)
                {
                    int[] frontTrianglesInfos = GetInfoValues(message, ref index);
                    netMeshData.netFrontTriangles.AddRange(frontTrianglesInfos);
                }

                //sideTriangles
                byte sideTrianglesSign = message[index];
                if (sideTrianglesSign == 7)
                {
                    int[] sideTrianglesInfos = GetInfoValues(message, ref index);
                    netMeshData.netSideTriangles.AddRange(sideTrianglesInfos);
                }

                return netMeshData;
            }
            return null;

        }

        private static int[] GetInfoValues(byte[] message, ref int index)
        {
            byte[] tempLength = new byte[4];
            index++;
            Array.Copy(message, index, tempLength, 0, 4);
            index += 4;
            int tempCount = BitConverter.ToInt32(tempLength, 0);
            int[] tempInfos = new int[tempCount / 4];

            for (int i = 0; i < tempCount / 4; i++)
            {
                byte[] tempBytes = new byte[4];
                Array.Copy(message, index, tempBytes, 0, 4);
                index += 4;
                //Debug.LogError(i+" "+ index);
                tempInfos[i] = BitConverter.ToInt32(tempBytes, 0);
            }

            return tempInfos;
        }

        private static T[] GetValues<T>(byte[] byteData, int byteByteLength)
        {
            Type t = typeof(T);
            int index = 0;
            int valueLength = byteData.Length / byteByteLength;
            T[] tempByteValue = new T[valueLength];

            for (int i = 0; i < valueLength; i++)
            {
                if (t == typeof(Int32))
                {
                    tempByteValue[i] = (T)(object)BitConverter.ToInt32(byteData, index);
                }
                else if (t == typeof(Int16))
                {
                    tempByteValue[i] = (T)(object)BitConverter.ToInt16(byteData, index);
                }
                else if (t == typeof(Int64))
                {
                    tempByteValue[i] = (T)(object)BitConverter.ToInt64(byteData, index);
                }
                else if (t == typeof(UInt16))
                {
                    tempByteValue[i] = (T)(object)BitConverter.ToUInt16(byteData, index);
                }
                else if (t == typeof(UInt32))
                {
                    tempByteValue[i] = (T)(object)BitConverter.ToUInt32(byteData, index);
                }
                else if (t == typeof(UInt64))
                {
                    tempByteValue[i] = (T)(object)BitConverter.ToUInt64(byteData, index);
                }
                index += byteByteLength;
            }
            return tempByteValue;
        }

        public static T BytesToIntX<T>(byte[] byteData, int offset, int byteByteLength) where T : IComparable
        {
            int mask = 0xff;
            long temp = 0;
            for (int i = 0; i < byteByteLength; i++)
            {
                temp |= (byteData[offset + i] & mask) << (8 * i);
            }
            return (T)Convert.ChangeType(temp, typeof(T));
        }

        public static T BytesToIntX<T>(List<byte> byteData, int offset, int byteByteLength) where T : IComparable
        {
            int mask = 0xff;
            long temp = 0;
            for (int i = 0; i < byteByteLength; i++)
            {
                temp |= (byteData[offset + i] & mask) << (8 * i);
            }
            return (T)Convert.ChangeType(temp, typeof(T));
        }


        public static NetMessage UnpackMessage(byte[] packet)
        {
            NetMessage message = null;
            using (MemoryStream ms = new MemoryStream(packet))
            {
                message = ProtoBuf.Serializer.Deserialize<NetMessage>(ms);
            }
            return message;
        }
        public static Texture2D tex;
        public static Texture2D ByteToTex2d(byte[] bytes, int w = 512, int h = 512)
        {
            if (tex == null)
            {
                tex = new Texture2D(w, h);
            }
            tex.LoadImage(bytes);
            return tex;
        }

        public static T Clone<T>(T RealObject)
        {

            using (Stream objectStream = new MemoryStream())

            {

                //利用 System.Runtime.Serialization序列化与反序列化完成引用对象的复制

                IFormatter formatter = new BinaryFormatter();

                formatter.Serialize(objectStream, RealObject);

                objectStream.Seek(0, SeekOrigin.Begin);

                return (T)formatter.Deserialize(objectStream);

            }

        }

        //static double[,] YUV2RGB_CONVERT_MATRIX = new double[3, 3] { { 1, 0, 1.4022 }, { 1, -0.3456, -0.7145 }, { 1, 1.771, 0 } };

        //public static byte[] ConvertYUV2RGB(byte[] yuvFrame, int width, int height)
        //{
        //    int uIndex = width * height;
        //    int vIndex = uIndex + ((width * height) >> 2);
        //    int gIndex = width * height;
        //    int bIndex = gIndex * 2;

        //    int temp = 0;
        //    byte[] rgbFrame = new byte[width * height * 3];
        //    for (int y = 0; y < height; y++)
        //    {
        //        for (int x = 0; x < width; x++)
        //        {
        //            //R分量
        //            temp = (int)(yuvFrame[y * width + x] + (yuvFrame[vIndex + (y / 2) * (width / 2) + x / 2] - 128) * YUV2RGB_CONVERT_MATRIX[0, 2]);
        //            rgbFrame[y * width + x] = (byte)(temp < 0 ? 0 : (temp > 255 ? 255 : temp));

        //            // G分量
        //            temp = (int)(yuvFrame[y * width + x] + (yuvFrame[uIndex + (y / 2) * (width / 2) + x / 2] - 128) * YUV2RGB_CONVERT_MATRIX[1, 1] + (yuvFrame[vIndex + (y / 2) * (width / 2) + x / 2] - 128) * YUV2RGB_CONVERT_MATRIX[1, 2]);
        //            rgbFrame[gIndex + y * width + x] = (byte)(temp < 0 ? 0 : (temp > 255 ? 255 : temp));

        //            // B分量
        //            temp = (int)(yuvFrame[y * width + x] + (yuvFrame[uIndex + (y / 2) * (width / 2) + x / 2] - 128) * YUV2RGB_CONVERT_MATRIX[2, 1]);
        //            rgbFrame[bIndex + y * width + x] = (byte)(temp < 0 ? 0 : (temp > 255 ? 255 : temp));
        //        }
        //    }
        //    return rgbFrame;
        //}
        public static void Nv420_to_rgb(Mat y, Mat nv, Mat rgb)
        {
            MatOfByte uuvv =new MatOfByte( Mat.zeros(nv.size(), CvType.CV_8UC1));
            byte[] dptr = uuvv.toArray();
            byte[] sptr =new MatOfByte(nv).toArray();
            for (int i = 0; i < uuvv.rows() * uuvv.cols(); ++i)
            {
                if (i % 2 == 0)
                    dptr[i / 2] = sptr[i];
                else
                    dptr[(i - 1) / 2 + uuvv.rows() * uuvv.cols() / 2] = sptr[i];
            }
            Mat yuv = new Mat((int)(y.rows() * 1.5f), y.cols(), CvType.CV_8UC1);
            y.copyTo(yuv.submat(new OpenCVForUnity.CoreModule.Rect(0, 0, y.cols(), y.rows())));
            uuvv.copyTo(yuv.submat(new OpenCVForUnity.CoreModule.Rect(0, y.rows(), y.cols(), y.rows() / 2)));
            Imgproc.cvtColor(yuv, rgb, Imgproc.COLOR_YUV2BGR_I420);
        }
    }
}