using Microsoft.Win32.SafeHandles;
using POSV.Printer;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;

namespace POSV.Proxy.Peripherals
{
    public class CashBox : IDisposable
    {
        public CashBox()
        {
            this.LOGGER = NLog.LogManager.GetLogger(GetType().FullName);
        }

        #region 钱箱属性
        [DllImport("kernel32.dll", CharSet = CharSet.Auto)]
        private static extern IntPtr CreateFile(string lpFileName, int dwDesiredAccess, int dwShareMode, int lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile);

        private const short FILE_ATTRIBUTE_NORMAL = 0x80;
        private const short INVALID_HANDLE_VALUE = -1;
        private const uint GENERIC_READ = 0x80000000;
        private const uint GENERIC_WRITE = 0x40000000;
        private const uint CREATE_NEW = 1;
        private const uint CREATE_ALWAYS = 2;
        private const uint OPEN_EXISTING = 3;
        /// <summary>
        /// 端口
        /// </summary>
        private static string _port = "NONE";

        /// <summary>
        /// 开钱箱指令[二进制]
        /// </summary>
        private static byte[] _instruction = null;

        IntPtr _IntPtr = IntPtr.Zero;

        private readonly NLog.Logger LOGGER = null;

        static CashBox cashBox = new CashBox();

        #endregion

        #region 钱箱操作
        /// <summary>
        /// 开启端口
        /// </summary>
        /// <param name="port"></param>
        /// <param name="printer"></param>
        public bool Open(string drawerCommand, string port)
        {
            _port = port;
            _instruction = GetBytes(drawerCommand);

            if (_port == "NONE" || _instruction == null)
                return false;
            else
                return true;

        }

        /// <summary>
        /// 开钱箱.
        /// </summary>
        public void OpenCashBox()
        {
            if (_instruction == null) return;

            try
            {
                if (_port.ToLower().Contains("com"))
                {
                    _IntPtr = CreateFile(_port, (int)GENERIC_WRITE, 0, (int)IntPtr.Zero, (int)OPEN_EXISTING, 0, (int)IntPtr.Zero);
                    if ((int)_IntPtr == -1)
                    {
                        LOGGER.Error("串口打开失败!");
                    }
                    FileStream lpt = new FileStream(_IntPtr, FileAccess.ReadWrite);
                    lpt.Write(_instruction, 0, _instruction.Length);
                    lpt.Close();
                }

                if (_port.ToLower().Contains("lpt"))
                {
                    _IntPtr = CreateFile(_port, (int)GENERIC_WRITE, 0, (int)IntPtr.Zero, (int)OPEN_EXISTING, 0, (int)IntPtr.Zero);
                    if ((int)_IntPtr == -1)
                    {
                        LOGGER.Error("并口打开失败!");
                    }
                    FileStream lpt = new FileStream(_IntPtr, FileAccess.ReadWrite);
                    lpt.Write(_instruction, 0, _instruction.Length);
                    lpt.Close();
                }

                if (_port.ToLower().Contains("usb"))
                {
                    YkPosDll.YkOpenDevice(13, 0);
                }
            }
            catch (Exception ex)
            {
                LOGGER.Info(ex);
            }

        }

        /// <summary>
        ///  清除资源
        /// </summary>
        public void Dispose()
        {
            _port = "NONE";
            _instruction = null;
        }

        /// <summary>
        /// 字符转比特
        /// </summary>
        /// <param name="strCommand"></param>
        /// <returns></returns>
        public static byte[] GetBytes(string strCommand)
        {
            if (string.IsNullOrEmpty(strCommand))
            {
                return null;
            }

            byte[] insByte = null;
            string[] tempArray = strCommand.Split(',');
            if (tempArray.Length == 0)
            {
                _instruction = null;
            }

            if (tempArray.Length > 0)
            {
                insByte = new byte[tempArray.Length];
                for (int i = 0; i < tempArray.Length; i++)
                {
                    insByte[i] = Convert.ToByte(Convert.ToInt16(tempArray[i].Trim()));
                }
            }
            return insByte;
        }

        #endregion
         
        public static void OpenCashBoxs()
        {
            _port = Global.Instance.GlobalConfigStringValue(ConfigConstant.DEVICE_CASHBOX_PORT, "NONE");

            if (_port.Equals("NONE"))
            {
                return;
            }

            _instruction = GetBytes(Global.Instance.GlobalConfigStringValue(ConfigConstant.DEVICE_CASHBOX_COMMAND, "27,112,0,128,128"));
            
            cashBox.OpenCashBox();

        }
    }
}