using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WWPipeLine.Commons
{
    public class PythonHelp
    {
        public static string PythonPath
        {
            get
            {
                if (System.IO.File.Exists(Paths.ApplicationPy))
                {
                    return Paths.ApplicationPy;
                }
                else
                {
                    return "python.exe";
                }
            }
        }

        /// <summary>
        /// Python执行脚本
        /// </summary>
        /// <param name="type"></param>
        /// <param name="model"></param>
        ///
        /// <returns></returns>
        public static EnumHelper.EPyStatus RunPythonScripts(EnumHelper.EBusinessType type, object model)
        {
            var status = EnumHelper.EPyStatus.Normal;
            if (model == null)
                return EnumHelper.EPyStatus.ArgsError;

            Process p = new Process();//开启一个新进程
            try
            {
                string filepath = Paths.ApplicationPythonScripts + "InitServer.py";
                p.StartInfo.FileName = string.Format("\"{0}\" ", PythonPath.Replace("\\", "/"));
                string sArguments = string.Format("  \"{0}\" \"{1}\"  {2} ", filepath, Newtonsoft.Json.JsonConvert.SerializeObject(model).Replace("\"", "\\\""), ((int)type).ToString());
                p.StartInfo.Arguments = sArguments;
                p.StartInfo.UseShellExecute = false;
                p.StartInfo.CreateNoWindow = true;
                p.Start();
                Commons.Cache.CurrentThreadID = p.Id;
                p.WaitForExit();
                status = (EnumHelper.EPyStatus)p.ExitCode;
            }
            catch (Exception ex)
            {
                string msg = string.Empty;
                switch (ex.GetType().Name)
                {
                    case "Win32Exception":

                        msg = "python环境异常";
                        status = EnumHelper.EPyStatus.EnvError;
                        break;

                    case "NullReferenceException":
                        msg = "python参数传递异常";
                        LogHelper.Error("python参数传递异常," + ex);
                        status = EnumHelper.EPyStatus.ArgsError;
                        break;

                    default:
                        msg = "python执行异常";
                        status = EnumHelper.EPyStatus.RunError;
                        break;
                }

                LogHelper.Error(msg + "," + ex);
            }
            finally
            {
                p.Dispose();
            }
            Commons.Cache.CurrentThreadID = 0;
            return status;
        }
    }
}