using Ips.Library.Entity;

namespace Ips.Library.LocLib
{
    public static class SigCalcUtil
    {
        public static int CalcMutil(long fs, int bandWidth, bool sup4m = false, double fsb = 1.25)
        {
            int mutil;
            var num = Convert.ToInt32(fs / (bandWidth * fsb));
            if (!sup4m || num <= 16)
            {
                var num1 = (int)(Math.Log10(num) / Math.Log10(2));
                mutil = (int)Math.Pow(2, num1);
            }
            else
            {
                mutil = ((int)(num / 4)) * 4;
            }
            return mutil;
        }

        public static int CalcFs(long clockFreq, int bandWidth, int adcMutil = 1)
        {
            if (adcMutil == 0) return (int)clockFreq;
            var adfreq = clockFreq / adcMutil;
            var mutil = CalcMutil(adfreq, bandWidth, adcMutil < 2);
            var fs = (int)(adfreq / mutil);
            return fs;
        }

        public static int CalcFs(long clockFreq, int bandWidth, bool sup4m = false, double fsb = 1.25)
        {
            var mutil = CalcMutil(clockFreq, bandWidth, sup4m, fsb);
            var fs = (int)(clockFreq / mutil);
            return fs;
        }

        public static FreqPointInfo GetFreqPointBySigFreq(long sigFreq, SatType satType, long satTurn, long cfqTurn)
        {
            long upFreq = sigFreq, satDownFreq = sigFreq - satTurn, downFreq = Math.Abs(satDownFreq - cfqTurn);
            if (sigFreq > 280 * 1e6 && sigFreq < 320 * 1e6)
            {
                upFreq = sigFreq;
                if (satType == SatType.WarSat)
                {
                    satDownFreq = WarSatFreq.GetDownFreq(upFreq);
                    downFreq = Math.Abs(satDownFreq + cfqTurn);
                }
                else
                {
                    satDownFreq = upFreq + satTurn;
                    downFreq = Math.Abs(satDownFreq + cfqTurn);
                }
            }
            //else if (sigFreq > 950 * 1e6 && sigFreq <= 2150 * 1e6)
            //{
            //    downFreq = sigFreq;
            //    satDownFreq = sigFreq + cfqTurn;
            //    upFreq = satDownFreq + satTurn;
            //}
            //else if (sigFreq > 2150 * 1e6)
            //{
            //    downFreq = sigFreq - cfqTurn;
            //    satDownFreq = sigFreq;
            //    upFreq = sigFreq + satTurn;
            //}
            FreqPointInfo freqInfo = new FreqPointInfo()
            {
                SigFreq = sigFreq,
                UpFreq = upFreq,
                SatDownFreq = satDownFreq,
                DownFreq = downFreq
            };
            return freqInfo;
        }

        //public static long GetDownFreq(long upFreq, SatType satType, long satTurn, long cfqTurn)
        //{
        //    long downFreq = 0;
        //    if (upFreq < 400 * 1e6 && upFreq > 200 * 1e6)
        //    {
        //        if (satType == SatType.WarSat)
        //        {
        //            downFreq = WarSatFreq.GetDownFreq(upFreq) + cfqTurn;
        //        }
        //        else
        //        {
        //            downFreq = upFreq + satTurn + cfqTurn;
        //        }
        //    }
        //    else
        //    {
        //        downFreq = upFreq - satTurn - cfqTurn;
        //    }
        //}
    }
}