using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using XzXdDw.App.Api;

namespace XdCxRhDW.App.Api.时差线
{
    public class DrawDtoLineHelper
    {
        #region 未使用
        /*
        static double[] HandleX2D1(X2D1Option opt)
        {
            var target_llh = DLL_LXYDApi.XingDi_DW(
                    opt.MsEph
                    , opt.NsEph
                    , opt.MsAnt
                    , opt.NsAnt
                    , opt.CDBMsAnt
                    , opt.CDBAnt
                    , opt.RefGeod
                    , opt.Zone
                    , opt.SxDto * 1e-6
                    , opt.xdDto * 1e-6
                    , -opt.SampMsDto * 1e-6
                    , -opt.SampNsDto * 1e-6
                    , -opt.CDBpMsDto * 1e-6
                    );
            double[] result = new double[6];
            Marshal.Copy(target_llh, result, 0, result.Length);
            return result;
        }
       
        static void HandleX1D2(X1D2Option opt)
        {
            var target_llh = DLL_YXLDApi.XingDi_DW_YXLD(
                opt.MsEph
                , opt.Ms1Ant
                , opt.Ms2Ant
                , opt.Nd1Ant
                , opt.Nd2Ant
                , opt.RefGeod1
                , opt.RefGeod2
                , opt.Zone
                , opt.DtXd1 * 1e-6
                , opt.DtXd2 * 1e-6
                , -opt.DtRef1 * 1e-6
                , -opt.DtRef2 * 1e-6
                );
            double[] result = new double[6];
            Marshal.Copy(target_llh, result, 0, result.Length);
            // OutputHelper.WritePos(result);
        }
         */
        #endregion
        private const string exeName = "XingDiSCX.exe";

        public static IEnumerable<(double lon, double lat)> HandleDtoLineXd(DtoLineXdOption opt)
        {
            List<DtoLinePoint> list = new List<DtoLinePoint>();

            string file = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "API\\时差线\\DtoLine.dat");
            string exePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "API\\时差线");
            if (string.IsNullOrWhiteSpace(exePath))
                throw new Exception($"请先调用SetExePath指定{exeName}进程所在路径,支持相对路径");
            if (!Directory.Exists(exePath))
                throw new Exception($"路径[{exePath}]不存在");
            var exeFile = Path.Combine(exePath, exeName);
            if (!File.Exists(exeFile))
                throw new Exception($"文件[{exeFile}]不存在");
            List<string> arguments = new List<string>();
            arguments.Add(file);
            arguments.Add($"{opt.MsEph[0]}");
            arguments.Add($"{opt.MsEph[1]}");
            arguments.Add($"{opt.MsEph[2]}");

            arguments.Add($"{opt.MsAnt[0]}");
            arguments.Add($"{opt.MsAnt[1]}");

            arguments.Add($"{opt.CDBAnt[0]}");
            arguments.Add($"{opt.CDBAnt[1]}");

            arguments.Add($"{opt.RefGeod[0]}");
            arguments.Add($"{opt.RefGeod[1]}");

            arguments.Add($"{opt.xdDto}");
            arguments.Add($"{opt.RefDto}");


            arguments.Add($"{opt.PosLon}");
            arguments.Add($"{opt.PosLat}");
            Process p = new Process();
            p.StartInfo.WorkingDirectory = exePath;
            p.StartInfo.FileName = exeFile;
            p.StartInfo.Arguments = string.Join(" ", arguments);
            p.StartInfo.CreateNoWindow = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.UseShellExecute = false;
            p.Start();
            var succeed = p.WaitForExit(10000);
            if (!succeed)
            {
                throw new Exception($"进程[{exeName}]超时未完成!");
            }
            string result = p.StandardOutput.ReadToEnd();
            if (string.IsNullOrWhiteSpace(result))
            {
                throw new Exception("计算时差线出现未知错误!");
            }
            var array = result.Split(" ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
            if (array[0] == "1")
            {
                throw new Exception(array[1]);
            }
            if (File.Exists(file))
            {
                var dtostr = File.ReadAllText(file);
                list = Newtonsoft.Json.JsonConvert.DeserializeObject<List<DtoLinePoint>>(dtostr);
            }
            var Lines = list.Select(s => (s.Lon, s.Lat));
            return Lines;
        }


        public static IEnumerable<(double lon, double lat)> HandleDtoLineXDTwoStart(DtoLineTwoStartOption opt)
        {

            List<DtoLinePoint> list = new List<DtoLinePoint>();
            IntPtr LOP_ValuePtr;
            int LOP_Len = 0;
            double[] zone = new double[] { -85, 85, -180, 180 }; //定位区域

            PosApi.CurveByTwoTDOA(
                opt.MsEph,
                 opt.NsEph,
                 opt.MsAnt,
                 opt.NsAnt,
                opt.RefGeod,
                 zone,
                opt.TargetDto * 1e-6,
                opt.RefDto * 1e-6, out LOP_ValuePtr, ref LOP_Len);


            double[] LOP_Value = new double[LOP_Len * 3];
            if (LOP_Len > 0)
            {
                Marshal.Copy(LOP_ValuePtr, LOP_Value, 0, LOP_Value.Length);

                list = OutputHelper.WriteDtoLine(LOP_Value, LOP_Len);
            }
            var Lines = list.Select(p => (p.Lon, p.Lat));
            return Lines;
        }

    }
}