using CliWrap;
using CliWrap.Buffered;
using Ips.Library.Basic;
using Ips.Library.Entity;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Ips.EphAlgorithm
{
    public class EphTleUtil2
    {
        const string fmtTime = "yyyy-MM-dd HH:mm:ss";
        static readonly string CliDir = PathUtil.GetBasePath("ipscli", "ephtle");
        static string CliFile
        {
            get
            {
                string fullName = Path.Combine(CliDir, "ephtle.exe");
                if (!File.Exists(fullName))
                {
                    string newFile = Directory.EnumerateFiles(CliDir, "ephtle*.exe").FirstOrDefault();
                    if (newFile != null) fullName = newFile;
                }
                return fullName;
            }
        }

        private static object obj = new object();

        private static BufferedCommandResult RunCli(Command cli, CancellationToken token)
        {
            lock (obj)
            {
                return cli.ExecuteBufferedAsync(token).GetAwaiter().GetResult();
            }
        }

        public static ExeResult<EphResult> Get(string line1, string line2, DateTime time, CancellationToken token = default)
        {
            var cli = Cli.Wrap(CliFile)
                .WithArguments(new[] { line1, line2, time.ToString(fmtTime) });
            var res = RunCli(cli, token);
            var result = EphResult.FromString(res.StandardOutput);
            result.Time = time;
            return ExeResult.Create(result, cli.Arguments, res.StartTime, res.ExitTime, res.ExitCode, res.StandardError);
        }

        public static ExeResult<EphResult[]> GetList(string line1, string line2, DateTime[] times, CancellationToken token = default)
        {
            const string CommandName = "list";
            List<string> args = new List<string>();
            args.AddRange(new[] { CommandName, line1, line2 });
            args.AddRange(times.Select(m => m.ToString(fmtTime)));
            var cli = Cli.Wrap(CliFile).WithArguments(args);
            var res = RunCli(cli, token);
            var result = EphResult.FromListString(res.StandardOutput);
            return ExeResult.Create(result, cli.Arguments, res.StartTime, res.ExitTime, res.ExitCode, res.StandardError);
        }

        public static ExeResult<EphResult[]> GetRange(string line1, string line2, DateTime startTime, DateTime endTime, int interval = 1, CancellationToken token = default)
        {
            const string CommandName = "range";
            var cli = Cli.Wrap(CliFile)
               .WithArguments(new[] { CommandName, line1, line2, startTime.ToString(fmtTime), endTime.ToString(fmtTime), "-i", interval.ToString() });
            var res = RunCli(cli, token);
            var result = EphResult.FromListString(res.StandardOutput);
            return ExeResult.Create(result, cli.Arguments, res.StartTime, res.ExitTime, res.ExitCode, res.StandardError);
        }
    }
}