using FisTools;
using System;
using System.Diagnostics;
using System.Linq;
using System.Threading;

namespace fis.Loader.Handlers
{
    /// <summary>
    /// 命令处理器基类
    /// </summary>
    internal abstract class BaseHandler
    {
        private int _currentProcessId;

        internal BaseHandler(LaunchMethodEnum method)
        {
            Method = method;
        }

        protected int CurrentProcessId
        {
            get {
                if (_currentProcessId == 0)
                {
                    var currentProcess = Process.GetCurrentProcess();
                    _currentProcessId = currentProcess.Id;
                }
                return _currentProcessId;
            }
        }
        protected void KillDamon()
        {
            ToolManager.Instance.LoaderCenter.KillProcessWithGivenName("loader", false);
        }
        protected void StartDamon(string fileName,string fisFileDir)
        {
            try {
                if (IsCartSystemVersion)
                {
                    while (true)
                    {
                        var process = Process.GetProcessesByName("fis").FirstOrDefault();
                        var loaderCount = Process.GetProcessesByName("loader").Length;
                        if (process == null && loaderCount==1)
                        {
                            ToolManager.Instance.LoaderCenter.StartProcessWithWorkingDirectory(fileName, fisFileDir);
                        }
                        Thread.Sleep(3000);
                    }
                }
            }
            catch (Exception ex)
            {
                Logger.WriteLine($"Error happened while start damon {ex}");
            }
        }

        protected bool IsCartSystemVersion
        {
            get
            {
                var cartSystem = Environment.GetEnvironmentVariable("CartSystem");
                if (!string.IsNullOrWhiteSpace(cartSystem))
                {
                    return true;
                }
                return false;
            }

        }

        /// <summary>
        /// 启动方式
        /// </summary>
        internal LaunchMethodEnum Method { get; private set; }

        /// <summary>
        /// 执行命令
        /// </summary>
        internal abstract void Execute();

        protected void KillApp()
        {
            ToolManager.Instance.LoaderCenter.KillProcessWithGivenName("fis");
        }

    }
}