using System;
using System.Collections.Generic;
using System.Text;
using System.Management;

namespace VWMS.CommonClass
{
    class SoftReg
    {
        // 取得設備硬盤的卷標號
        public string GetDiskVolumeSerialNumber()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid=\"d:\"");
            disk.Get();
            return disk.GetPropertyValue("VolumeSerialNumber").ToString();
        }
        //獲得CPU的序列號
        public 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;
        }
        //生成機器碼
        public string getMNum()
        {
            string strNum = getCpu() + GetDiskVolumeSerialNumber();//獲得24位Cpu和硬盤序列號
            string strMNum = strNum.Substring(0,24);//從生成的字符串中取出前24個字符做為機器碼
            return strMNum;
        }
        public int[] intCode = new int[127];//存儲密鑰
        public int[] intNumber = new int[25];//存機器碼的Ascii值
        public char[] Charcode = new char[25];//存儲機器碼字
        public void setIntCode()//給數組賦值小于10的數
        {
            for (int i = 1; i < intCode.Length; i++)
            {
                intCode[i] = i % 9;
            }
        }
        //生成注冊碼
        public string getRNum()
        {
            setIntCode();//初始化127位數組
            for (int i = 1; i < Charcode.Length; i++)//把機器碼存入數組中
            {
                Charcode[i] = Convert.ToChar(this.getMNum().Substring(i - 1, 1));
            }
            for (int j = 1; j < intNumber.Length; j++)//把字符的ASCII值存入一個整數組中。
            {
                intNumber[j] = intCode[Convert.ToInt32(Charcode[j])] + Convert.ToInt32(Charcode[j]);
            }
            string strAsciiName = "";//用于存儲注冊碼
            for (int j = 1; j < intNumber.Length; j++)
            {
                if (intNumber[j] >= 48 && intNumber[j] <= 57)//判斷字符ASCII值是否0－9之間
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else if (intNumber[j] >= 65 && intNumber[j] <= 90)//判斷字符ASCII值是否A－Z之間
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else if (intNumber[j] >= 97 && intNumber[j] <= 122)//判斷字符ASCII值是否a－z之間
                {
                    strAsciiName += Convert.ToChar(intNumber[j]).ToString();
                }
                else//判斷字符ASCII值不在以上范圍內
                {
                    if (intNumber[j] > 122)//判斷字符ASCII值是否大于z
                    {
                        strAsciiName += Convert.ToChar(intNumber[j] - 10).ToString();
                    }
                    else
                    {
                        strAsciiName += Convert.ToChar(intNumber[j] - 9).ToString();
                    }
                }
            }
            return strAsciiName;
        }
    }
}