using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Management;
using System.Text;
using System.Threading.Tasks;
using System.Xml;

namespace OTSMeasureApp
{
    class CRegistration
    {
   
        public bool RegistrationVerification()
        {
           
            try
            {
                if (!checkRegistration())//文件授权法
                {
                    return false;

                }
                //狗加密法
                //SenseShield.DogDecrypting.decrypting(101);//参数为许可号
            }
            catch (Exception ex)
            {

                return false;

            }
            return true;
        }
        private bool checkRegistration()
        {
            string CPUID, DiskID;
            CPUID = getCpu();
            DiskID = GetDiskVolumeSerialNumber();
            var ID = ReadXML("./Config/SysData/RegistrationProofreading.txt");
            if (ID.Count == 0)
            {
                return false;
            }
            List<string> list_str = new List<string>();
            List<string> list_time = new List<string>();
            ID.TryGetValue("ID", out list_str);
            ID.TryGetValue("Time", out list_time);
            string setCPU = ConvertString(list_str[0]);
            string setDisk = ConvertString(list_str[1]);
            string setYear = ConvertString(list_time[0]);
            string setMonth = ConvertString(list_time[1]);
            string setDay = ConvertString(list_time[2]);
            if (CPUID != setCPU || DiskID != setDisk)
            {
                return false;

            }

            DateTime dt = DateTime.ParseExact(setYear + setMonth + setDay + "235959", "yyyyMMddHHmmss", System.Globalization.CultureInfo.CurrentCulture);

            if (DateTime.Now > dt)
            {

                return false;
            }
            return true;
        }


        // 获得CPU的序列号
       private static string getCpu()
        {
            string strCpu = null;
            ManagementClass myCpu = new ManagementClass("win32_Processor");
            ManagementObjectCollection myCpuConnection = myCpu.GetInstances();
            foreach (ManagementObject myObject in myCpuConnection)
            {
                strCpu = myObject.Properties["Processorid"].Value.ToString();
                break;
            }
            return strCpu;
        }

        // 取得设备硬盘的卷标号
       private static string GetDiskVolumeSerialNumber()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid=\"c:\"");
            disk.Get();
            return disk.GetPropertyValue("VolumeSerialNumber").ToString();
        }

        private static IDictionary<String, List<String>> ReadXML(string address)
        {
            IDictionary<String, List<String>> infos = new Dictionary<String, List<String>>();

            if (File.Exists(address))
            {
                XmlDocument xmlDoc = new XmlDocument();

                xmlDoc.Load(address);

                XmlNode xn = xmlDoc.SelectSingleNode("infos");

                XmlNodeList xnl = xn.ChildNodes;

                foreach (XmlNode xnf in xnl)
                {
                    XmlElement xe = (XmlElement)xnf;

                    XmlNode nameNode = xe.SelectSingleNode("ID");

                    string name = nameNode.InnerText;
                    Console.WriteLine(name);
                    XmlNode filelist = xe.SelectSingleNode("filelist");

                    List<String> list = new List<string>();

                    foreach (XmlNode item in filelist.ChildNodes)
                    {
                        list.Add(item.InnerText);
                    }

                    infos.Add(name, list);
                }
            }
            return infos;
        }
        private string ConvertString(string str)
        {
            string str_out;
            string[] arr = str.Split(',');
            byte[] be = new byte[arr.Count()];

            for (int i = 0; i < arr.Count(); i++)
            {
                be[i] = Convert.ToByte(arr[i]);
            }
            str_out = Encoding.Unicode.GetString(be);
            return str_out;
        }
    }
}