using Ips.Library.Basic;
using Ips.LocAlgorithm;
using Ips.Sim.Interops;
using Ips.Sim.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ips.Sim
{
    public static class SimUtil
    {
        public static double[] GenSignalFile(string folder, long fs, double timeLen, double[] pos, double[] dfs, SimSatInfo mainSat, List<SimSatInfo> adjaSats, double errRange = 0, bool hasRef = false, double[] refLla = null, long refFs = 0)
        {
            if (mainSat == null) throw new ArgumentNullException(nameof(mainSat));
            if (adjaSats.IsNullOrEmpty()) throw new ArgumentNullException(nameof(adjaSats));
            DirectoryUtil.CreateIfNotExists(folder);
            string mainFile = Path.Combine(folder, mainSat.FileName);
            var timeLenMs = Convert.ToInt32(timeLen * 1e3);
            var srcPos = new double[] { pos[0], pos[1], 0 };
            double[] dts = new double[4];
            int errDt = 0;
            if (errRange > 1e-6)
            {
                var rd = new Random();
                var rdVal = (errRange / 111).E6();
                var errLon = rd.Next(-rdVal, rdVal).E6m();
                var errLat = rd.Next(-rdVal, rdVal).E6m();
                pos[0] += errLon / 3;
                pos[1] += errLat;
            }
            if (!hasRef)
            {
                if (adjaSats.Count == 1)
                {
                    var adjaSat = adjaSats[0];
                    string adjaFile = Path.Combine(folder, adjaSat.FileName);
                    SignalEmulationApi.genSatSignal(mainSat.SatEph, adjaSat.SatEph, mainSat.RecGeod, adjaSat.RecGeod, pos, fs, timeLenMs, mainFile, adjaFile, dts);
                }
                else
                {
                    var adja1Sat = adjaSats[0];
                    var adja2Sat = adjaSats[1];
                    string adja1File = Path.Combine(folder, adja1Sat.FileName);
                    string adja2File = Path.Combine(folder, adja2Sat.FileName);

                    double[] mainEph = mainSat.SatEph, adja1Eph = adja1Sat.SatEph, adja2Eph = adja2Sat.SatEph;
                    double[] mainRec = mainSat.RecGeod, adja1Rec = adja1Sat.RecGeod, adja2Rec = adja2Sat.RecGeod;
                    //double[] dfs = new[] { tarDf1, tarDf2 };

                    SignalEmulationApi.genSatSignals(mainEph, adja1Eph, adja2Eph, mainRec, adja1Rec, adja2Rec, pos, fs, timeLenMs, errDt, dfs, mainFile, adja1File, adja2File, dts);

                    //var dtll1 = GeoUtil.CalcDtoCenter(pos, mainEph, adja1Eph, mainRec, adja1Rec);
                    //var dtll2 = GeoUtil.CalcDtoCenter(pos, mainEph, adja2Eph, mainRec, adja2Rec);
                    //var dttar1 = -dts[0] * 1e6;
                    //var dttar2 = -dts[1] * 1e6;
                    //var dtll = GeoUtil.CalcDtoCenter(pos, mainSat.SatEph, adja1Sat.SatEph, mainSat.RecGeod, adja1Sat.RecGeod);
                    //var dttar1 = dts[0];
                    //var dttar2 = dts[1];

                    //var dttar1 = 4378;
                    //var dttar2 = 4126;

                    //var posResult1 = Task.Run(() => LocUtil.X3(dttar1, dttar2, mainRec, adja1Rec, mainRec, adja2Rec, mainEph, adja1Eph, mainEph, adja2Eph)).Result.Result;
                    //var posResult2 = Task.Run(() => LocUtil.X3(dttar2, dttar1, mainRec, adja1Rec, mainRec, adja2Rec, mainEph, adja1Eph, mainEph, adja2Eph)).Result.Result;
                    //var posResult1 = Task.Run(() => LocUtil.X3(dtll1, dtll2, mainRec, adja1Rec, mainRec, adja2Rec, mainEph, adja1Eph, mainEph, adja2Eph)).Result.Result;
                }
            }
            else
            {
                var adja1Sat = adjaSats[0];
                var adja2Sat = adjaSats[1];
                string adja1File = Path.Combine(folder, adja1Sat.FileName);
                string adja2File = Path.Combine(folder, adja2Sat.FileName);
                string refMainFile = Path.Combine(folder, mainSat.RefFileName);
                string refAdja1File = Path.Combine(folder, adja1Sat.RefFileName);
                string refAdja2File = Path.Combine(folder, adja2Sat.RefFileName);
                double[] mainEph = mainSat.SatEph, adja1Eph = adja1Sat.SatEph, adja2Eph = adja2Sat.SatEph;
                double[] mainRec = mainSat.RecGeod, adja1Rec = adja1Sat.RecGeod, adja2Rec = adja2Sat.RecGeod;
                //double[] dfs = new[] { tarDf1, tarDf2, refDf1, refDf2 };
                SignalEmulationApi.genSatSignalsWithRef(mainEph, adja1Eph, adja2Eph, mainRec, adja1Rec, adja2Rec, pos, refLla, fs, refFs, timeLenMs, errDt, dfs, mainFile, adja1File, adja2File, refMainFile, refAdja1File, refAdja2File, dts);
                //var dttar1 = -dts[0] * 1e6;
                //var dttar2 = -dts[1] * 1e6;
                //var dtref1 = -dts[2] * 1e6;
                //var dtref2 = -dts[3] * 1e6;
                //var dttar3 = dtref1 - dttar1;
                //var dtref3 = dtref2 - dttar2;
                //var dt1 = Task.Run(() => Loc32Util.CalcDt(pos, mainEph, adja1Eph, mainRec, adja1Rec, refLla).Result).Result;
                //var dt2 = Task.Run(() => Loc32Util.CalcDt(pos, mainEph, adja2Eph, mainRec, adja2Rec, refLla).Result).Result;
                //var posResult = Task.Run(() => LocUtil.X3Ref(dttar1, dttar2, dtref1, dtref2, refLla, refLla, mainRec, adja1Rec, mainRec, adja2Rec, mainEph, adja1Eph, mainEph, adja2Eph)).Result.Result;
                //var posResult1 = Task.Run(() => Loc32Util.X3Ref(dttar1, dttar2, dtref1, dtref2, refLla, refLla, mainRec, adja1Rec, mainRec, adja2Rec, mainEph, adja1Eph, mainEph, adja2Eph)).Result.Result;
                //var dis1 = GeoUtil.DistinceLla(pos, posResult.Result1.ToArray());
                //var dis2 = GeoUtil.DistinceLla(pos, posResult1.Result2.ToArray());
            }
            return dts.Select(m => -m).ToArray();
        }

        private static string GetSatSignalsWithRefArg(double[] majorSat, double[] minorSat1, double[] minorSat2, double[] majorRecv, double[] minorRecv1, double[] minorRecv2, double[] tarPos, double[] refPos, long fsample, int tlenms, int dtErrRange, string fmajor, string fminor1, string fminor2, string frmajor, string frminor1, string frminor2, double[] res)
        {
            return "";
        }
    }
}