using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DeviceLib.DeviceSerial;

namespace DoAn.Core
{
    public delegate void ComDataEvent(object sender, string value);
    public delegate void ComRunEvent(object sender, string value);
    public delegate void ComErrorEvent(object sender, string value);

    public class ComServer
    {

        private static ComServer _comServer = null;

        /// <summary>
        /// 串口服务器单例对象
        /// </summary>
        /// <returns></returns>
        public static ComServer CreateSingleComServer()
        {
            if (_comServer != null)
                return _comServer;
            else
            {
                _comServer = new ComServer();
                return _comServer;
            }
        }

        private DeviceServer _ds = null;

        /// <summary>
        /// 创建设备服务器对象
        /// </summary>
        public DeviceServer DServer
        {
            get { return _ds; }
        }

        // 委托对象
        public ComDataEvent comData;
        public ComRunEvent comRun;
        public ComErrorEvent comError;

        /// <summary>
        /// 构造函数
        /// </summary>
        private ComServer()
        {
            this._ds = new DeviceServer();
            this._ds.DataError += MainDataError;
            this._ds.DataChange += Com_DataUpdated;
            this._ds.RunInfo += MainRunInfo;
        }

        /// <summary>
        /// 添加设备
        /// </summary>
        /// <param name="Id"></param>
        /// <param name="Name"></param>
        /// <param name="Number"></param>
        /// <param name="CompanyModul"></param>
        /// <param name="Settings"></param>
        /// <param name="Station"></param>
        /// <returns></returns>
        public object AddItem(int Id, string Name, int Number, DeviceModul CompanyModul, string Settings, int Station)
        {
            _ds.AddItem(Id, Name, Number, CompanyModul, Settings, Station);
            return null;
        }

        // 开启串口
        public void Start()
        {
            _ds.Start();
        }

        // 释放资源
        public void Dispose()
        {
            if (_ds != null)
                _ds.Dispose();
        }

        public void StartScanner(int port)
        {
            SerialPortDevice spd = _ds.FindItemByPort(port);
            if (spd != null)
            {
                this._ds.SyncWrite(spd, new byte[] { 0x16, 0x54, 0x0D });
            }

        }

        public void StopScanner(int port)
        {
            SerialPortDevice spd = _ds.FindItemByPort(port);
            if (spd != null)
            {
                this._ds.SyncWrite(spd, new byte[] { 0x16, 0x55, 0x0D });
            }

        }

        #region (* 串口事件处理函数 *)

        // 串口数据接收完成
        private void Com_DataUpdated(object sender, object value)
        {
            if (sender is SerialPortDevice && value is string)
            {
                SerialPortDevice sp = (SerialPortDevice)sender;
                if (comData != null)
                {
                    string _sender = sender.ToString();
                    string _value = (string)value;
                    string strResult = _value.Replace("\n", "").Replace(" ", "").Replace("\t", "").Replace("\r", "");
                    comData(sp.terDevice.Id.ToString(), strResult);
                }
            }
        }

        #endregion

        #region (* 串口运行和故障信息 *)

        // 运行信息
        private void MainRunInfo(string rs)
        {
            if (comRun != null)
            {
                comRun.BeginInvoke(null, rs, null, null);
            }
        }

        // 故障信息
        private void MainDataError(Exception ex)
        {
            if (comError != null)
            {
                string rs = string.Format("错误原因:{0} ", ex.Message);
                comError.BeginInvoke(null, rs, null, null);
            }
        }

        #endregion
    }
}