using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Threading.Tasks;
using System.Collections;
using System.Collections.Generic;
using XdCxRhDW.Dto;
using System.Security.Policy;

namespace CheckServer
{
   
    public static class CheckHelper
    {
        public static async Task<IEnumerable<DmcResult>> DmcCheckAsync(string fileName, double fsHz, EnumSigCheckTypeDto dmcType, double? bandKHz = null)
        {
            if (bandKHz == null || bandKHz.Value <= 0) bandKHz = 25;
            string dmcCmd = "all";
            var dmp = new Process();
            string pFileName = Path.Combine(dmp.StartInfo.WorkingDirectory, "AddIns\\dmc.exe");
            string pArguments = string.Empty;
            switch (dmcType)
            {
                case EnumSigCheckTypeDto.DAMA:
                    dmcCmd = "dm";
                    if (fsHz != 96000)
                        throw new Exception("DAMA只支持96K采样率");
                    pArguments = $"{dmcCmd} \"{fileName}\" -c true";//-c包含ccow
                    break;
                case EnumSigCheckTypeDto.IBS:
                    dmcCmd = "nd";
                    pArguments = $"{dmcCmd} \"{fileName}\" -w {bandKHz}";// -f {fs}" -c --dmfirst";
                    break;
                case EnumSigCheckTypeDto.Ky5758:
                    pFileName = Path.Combine(dmp.StartInfo.WorkingDirectory, "AddIns\\enc.exe");
                    //enc.exe enc-test.dat 0.096 5 0全部文件
                    pArguments = $"{fileName} {fsHz * 1e-6} {5} {0}";
                    break;
                default:
                    break;
            }
            return await Task.Run(() =>
             {

                 dmp.StartInfo.FileName = pFileName;
                 dmp.StartInfo.Arguments = pArguments;
                 dmp.StartInfo.CreateNoWindow = true;
                 dmp.StartInfo.RedirectStandardError = true;
                 dmp.StartInfo.RedirectStandardOutput = true;
                 dmp.StartInfo.UseShellExecute = false;
                 dmp.Start();
                 Stopwatch stopWatch = new Stopwatch();
                 stopWatch.Start();
                 dmp.WaitForExit();
                 stopWatch.Stop();
                 TimeSpan ts = stopWatch.Elapsed;
                 var str = dmp.StandardOutput.ReadToEnd();
                 return ConvertDmcResult(dmcType, str, ts.TotalMilliseconds);
             });
        }

        private static IEnumerable<DmcResult> ConvertDmcResult(EnumSigCheckTypeDto type, string res, double tm)
        {
            var lines = res.Split(Environment.NewLine.ToArray(), StringSplitOptions.RemoveEmptyEntries);
            foreach (var line in lines)
            {
                var items = line.Split('\t');
                if (items.Length < 2) continue;
                int start = int.Parse(items[0]);
                int length = int.Parse(items[1]);
                string userName = "";
                if (items.Length >= 3)
                    userName = items[2];
                var item = new DmcResult(start, length, userName, (int)tm);
                item.DmcType = type.GetEnumDisplayName();
                yield return item;
            }
        }
    }
}