using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace CheckServer
{
    public static class SignalProcHelper
    {
        private const string dll = @"AddIns\SignalProc.dll";

        #region cpp dll Interop 
        [DllImport(dll, EntryPoint = "SigalEst", CallingConvention = CallingConvention.Cdecl)]
        private extern static void SigalEst(string file, long fsHz, int[] smpStart, int[] smpCount, int[] modes, double[] rates, double[] ffcs, double[] snrs, int len);
        #endregion

        static List<int> list1 = new List<int>();
        static List<int> list2 = new List<int>();

        public static List<SignalProcRes> SigalEst(string file, long fsHz, int[] smpStart, int[] smpCount)
        {
            for (int i = 0; i < smpStart.Length; i++)
            {
                if (!list1.Contains(smpStart[i]))
                    list1.Add(smpStart[i]);
                if (!list2.Contains(smpCount[i]))
                    list2.Add(smpCount[i]);
            }
            int sigCount = smpStart.Length;
            int[] modes = new int[sigCount];//信号模式
            double[] rates = new double[sigCount];//调制速率
            double[] ffcs = new double[sigCount];//信号频偏Hz
            double[] snrs = new double[sigCount];//信号信噪比dB
            SigalEst(file, fsHz, smpStart, smpCount, modes, rates, ffcs, snrs, sigCount);
            List<SignalProcRes> list = new List<SignalProcRes>();
            for (int i = 0; i < modes.Length; i++)
            {
                SignalProcRes item = new SignalProcRes()
                {
                    SignalType = (EnumSignalType)modes[i],
                    Ffc = Math.Round(ffcs[i], 2),
                    Rate = Math.Round(rates[i], 2),
                    Snr= Math.Round(snrs[i], 2),
                };
                list.Add(item);
            }
            return list;
        }

    }

    public class SignalProcRes
    {
        /// <summary>
        /// 信号类型
        /// </summary>
        public EnumSignalType SignalType { get; set; }

        /// <summary>
        /// 调制速率(bps)
        /// </summary>
        public double Rate { get; set; }

        /// <summary>
        /// 频偏
        /// </summary>
        public double Ffc { get; set; }

        /// <summary>
        /// 信号信噪比
        /// </summary>
        public double Snr { get; set; }
    }

    public enum EnumSignalType
    {
        SUNKNOW = -1,       //UNKNOW	
        BPSK = 1,       //BPSK						备注为界面显示字母
        OQPSK = 2,      //OQPSK
        QPSK = 3,       //QPSK
        P4QPSK = 4,     //Pi/4QPSK
        _8PSK = 5,      //8PSK
        _16APSK = 6,        //16APSK
        _32APSK = 7		//32APSK
    }
}