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

namespace XdCxRhDW.DataEmulation
{
    public static class DataEmulationHelper
    {
        private const string dll = @"AddIns\SignalEmulation.dll";

        #region cpp dll Interop 
        [DllImport(dll, EntryPoint = "genSignalsWithDtDf", CallingConvention = CallingConvention.Cdecl)]
        private extern static void GenSignalsWithDtDfCore(string file1, string file2, long fsHz, int sigLenMs, double dt, double df, int snr2, int snr1);

        //生成噪声,文件，采样率，时长ms,最大幅度
        [DllImport(dll, EntryPoint = "genNoizes", CallingConvention = CallingConvention.Cdecl)]
        private extern static void GenNoizes(string file1, long fsHz, int tlenms, int Am);
        #endregion

        /// <summary>
        /// 生成一组常规信号文件
        /// </summary>
        /// <param name="file1">输出文件1</param>
        /// <param name="file2">输出文件2</param>
        /// <param name="fsHz">采样率Hz</param>
        /// <param name="sigTimeLenMs">信号时长(毫秒)</param>
        /// <param name="dt">时差秒</param>
        /// <param name="df">频差Hz</param>
        /// <param name="snr1">文件1信噪比</param>
        /// <param name="snr2">文件2信噪比</param>
        public static void GenSignalsFile(string file1, string file2, long fsHz, int sigTimeLenMs, double dt, double df, int snr1, int snr2)
        {
            GenSignalsWithDtDfCore(file1, file2, fsHz, sigTimeLenMs, dt, df, snr2, snr1);
        }

        /// <summary>
        /// 生成单个噪声文件
        /// </summary>
        /// <param name="file1"></param>
        /// <param name="fsHz"></param>
        /// <param name="timeLenMs"></param>
        /// <param name="am"></param>
        public static void GenNoizesFile(string file1, long fsHz, int timeLenMs, int am)
        {
            GenNoizes(file1, fsHz, timeLenMs, am); 
        }
    }
}