using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;

namespace XdCxRhDW.App.Api
{
    public class DrawDfoLineHelper
    {
      
        private const string exeName = "locow.exe";
        private static double[] zone = new double[] { -85, 85, -180, 180 }; //定位区域
        /// <summary>
        /// 高轨双星频差线
        /// </summary>
        /// <param name="opt"></param>
        /// <returns></returns>
        /// <exception cref="Exception"></exception>
        public static IEnumerable<(double lon, double lat)> DfoLineTwoStart(DfoLineTwoStartOption opt)
        {
            List<DfoLinePoint> list = new List<DfoLinePoint>();

            string exePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "API\\频差线");
            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($"文件[{exeFile}]不存在");
            List<string> arguments = new List<string>();
            arguments.Add("dfoline");
            arguments.Add($"{opt.TargetDfo}");
            arguments.Add($"{opt.Freq * 1e6}");
            arguments.Add($"{opt.Turn1 * 1e6}");
            arguments.Add($"{opt.Turn2 * 1e6}");
            arguments.Add($"--rec1 {opt.MsAnt[0]} {opt.MsAnt[1]} 0");
            arguments.Add($"--rec1 {opt.NsAnt[0]} {opt.NsAnt[1]} 0");

            arguments.Add($"--eph1 {opt.MsEph[0]} {opt.MsEph[1]} {opt.MsEph[2]} {opt.MsEph[3]} {opt.MsEph[4]} {opt.MsEph[5]}");
            arguments.Add($"--eph1 {opt.NsEph[0]} {opt.NsEph[1]} {opt.NsEph[2]} {opt.NsEph[3]} {opt.NsEph[4]} {opt.NsEph[5]}");
            arguments.Add($"--refdf {opt.RefDfo}");
            arguments.Add($"--reffreq {opt.RefFreq * 1e6}");

            arguments.Add($"--reflla {opt.RefGeod[0]} {opt.RefGeod[0]} 0");
            Process p = new Process();
            p.StartInfo.WorkingDirectory = exePath;
            p.StartInfo.FileName = exeFile;
            p.StartInfo.Arguments = string.Join(" ", arguments);
            p.StartInfo.CreateNoWindow = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.UseShellExecute = false;
            p.Start();
            var succeed = p.WaitForExit(10000);
            if (!succeed)
            {
                throw new Exception($"进程[{exeName}]超时未完成!");
            }
            string result = p.StandardOutput.ReadToEnd();
            if (string.IsNullOrWhiteSpace(result))
            {
                throw new Exception("计算频差线出现未知错误!");
            }
            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<DfoLinePoint>>(dtostr);
            //}
            var Lines = list.Select(s => (s.Lon, s.Lat));
            return Lines;
        }

        

       

    }
}