using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Reflection;
using Autofac;
using EMIS.CommonLogic;
using System.Configuration;
using EMIS.Utility;
using Bowin.Common.Log;

namespace EMIS.Services
{
    public class Program : ServiceBase
    {
        private System.ComponentModel.Container components = null;
        private System.Timers.Timer m_timer;
        private int m_errornum = 0;
        //private Log _log = new Log();

        private string sServiceName = "";

        private bool isRunning = false;

        public static readonly Autofac.IContainer AutofacContainer;

        static Program()
        {
            var builder = new ContainerBuilder();

            builder.RegisterModule<EMIS.CommonLogic.DALModule>();
            builder.RegisterModule<EMIS.CommonLogic.ServiceModule>();

            var _container = builder.Build();
            AutofacContainer = _container;
            AutofacHelper.Container = _container;
        }

        public Program()
        {
            // 该调用是 Windows.Forms 组件设计器所必需的。
            InitializeComponent();
        }

        #region 进程的主入口点
        static void Main()
        {
            System.ServiceProcess.ServiceBase[] ServicesToRun;
            //System.Diagnostics.Debugger.Launch();
            // 同一进程中可以运行多个用户服务。若要将
            // 另一个服务添加到此进程，请更改下一行
            // 以创建另一个服务对象。例如，
            //
            //   ServicesToRun = New System.ServiceProcess.ServiceBase[] {new Service1(), new MySecondUserService()};
            //
            ServicesToRun = new System.ServiceProcess.ServiceBase[] { new Program() };

            System.ServiceProcess.ServiceBase.Run(ServicesToRun);
        }
        #endregion

        #region InitializeComponent
        /// <summary> 
        /// 设计器支持所需的方法 - 不要使用代码编辑器 
        /// 修改此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            components = new System.ComponentModel.Container();
            helpInitializeComponent();
        }

        private void helpInitializeComponent()
        {  //防止对设计视图的不可观察影响. GaoXT20090206
            this.CanHandlePowerEvent = true;
            this.CanPauseAndContinue = true;
            this.CanShutdown = true;

            sServiceName = ConfigurationManager.AppSettings["ServiceName"];
            this.ServiceName = "BackEnd Service For " + sServiceName;
        }
        #endregion

        #region Dispose
        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }
        #endregion

        #region OnStart
        /// <summary>
        /// 设置具体的操作，以便服务可以执行它的工作。
        /// </summary>
        protected override void OnStart(string[] args)
        {
            LogHelper.WriteLog(LogType.ServiceLog, "服务开始！");

            //获取时间设置的缺省值
            string timeInterVal = ConfigurationManager.AppSettings["Interval"];

            //将缺省值设置间隔时间设为计时器的间隔时间
            this.m_timer = new System.Timers.Timer();
            if (timeInterVal.Length != 0)
            {
                this.m_timer.Interval = System.Convert.ToInt32(timeInterVal);
            }
            else
            {
                this.m_timer.Interval = 10000;         //缺省为10秒
            }

            this.m_timer.Elapsed += new System.Timers.ElapsedEventHandler(this.OnTimedEvent);
            this.m_timer.AutoReset = true;
            this.m_timer.Enabled = true;
            this.m_timer.Start();
        }
        #endregion

        #region  时间器运行方法，调用ServiceWrapper
        /// <summary>
        /// 时间器运行方法，调用ServiceWrapper
        /// </summary>
        /// <param name="source"></param>
        /// <param name="e"></param>
        protected void OnTimedEvent(object source, System.Timers.ElapsedEventArgs e)
        {
            if (this.isRunning)
            {
                return;
            }

            this.isRunning = true;
            try
            {
                if (this.m_errornum < 100000)
                {
                    //动态创建Wrapper，并将基本值赋予其属性
                    string sWrapper = ConfigurationManager.AppSettings["Wrapper"];

                    string[] sArray = sWrapper.Split(',');
                    Assembly assem = Assembly.Load(sArray[0].ToString());
                    Type classType = assem.GetType(sArray[1].ToString());

                    EMIS.Services.MyEAPServiceWrapper.IServiceWrapper fss = (EMIS.Services.MyEAPServiceWrapper.IServiceWrapper)System.Activator.CreateInstance(classType);

                    fss.IsDebug = System.Convert.ToBoolean(ConfigurationManager.AppSettings["IsDebug"]);
                    bool returnValue = true;
                    returnValue = fss.Execute();   //运行Wrapper

                    if (!returnValue)
                        this.m_errornum++;
                }
                else
                {
                    LogHelper.WriteErrorLog(LogType.ServiceLog, "more than 100000 exceptions occurred when run ServiceWrapper, begin to stop service");
                    this.OnStop();
                }
            }
            catch (Exception ce)
            {
                LogHelper.WriteErrorLog(LogType.ServiceLog, "Exception occur when run EAPService.OnTimedEvent,pls refer :" + ce.Message + "||" + ce.TargetSite + "||" + ce.StackTrace);
                this.m_errornum++;
            }
            finally
            {
                this.isRunning = false;
            }
        }
        #endregion

        #region OnStop
        /// <summary>
        /// 停止此服务。
        /// </summary>
        protected override void OnStop()
        {
            try
            {
                this.m_timer.Enabled = false;
                this.m_timer.Stop();
                this.m_timer.Close();
                this.m_errornum = 0;
                LogHelper.WriteLog(LogType.ServiceLog, "机器服务【" + sServiceName + "】结束！");
            }
            catch (Exception ce)
            {
                LogHelper.WriteErrorLog(LogType.ServiceLog, ce.Message);
            }
        }
        #endregion

        #region OnPause
        /// <summary>
        /// 重载暂停运行方法
        /// </summary>
        protected override void OnPause()
        {
            try
            {
                this.m_timer.AutoReset = false;

                this.m_errornum = 0;
                LogHelper.WriteLog(LogType.ServiceLog, "Service is paused");
            }
            catch (Exception ce)
            {
                LogHelper.WriteErrorLog(LogType.ServiceLog, ce.Message);
            }
        }
        #endregion

        #region OnContinue
        /// <summary>
        /// 重载继续运行方法
        /// </summary>
        protected override void OnContinue()
        {
            try
            {
                this.m_timer.AutoReset = true;
                LogHelper.WriteLog(LogType.ServiceLog, "Service continue to run");
            }
            catch (Exception ce)
            {
                LogHelper.WriteErrorLog(LogType.ServiceLog, ce.Message);
            }
        }
        #endregion

        #region OnShutdown
        /// <summary>
        /// 重载关闭方法
        /// </summary>
        protected override void OnShutdown()
        {
            this.OnStop();
        }
        #endregion
    }
}