using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Linq;
using System.Management;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace SetTools.Views
{
    public partial class Register : Form
    {
        public String ConSql = @"Provider=Microsoft.Jet.OleDb.4.0; Data Source = " + System.IO.Directory.GetCurrentDirectory() + "\\rqdata.mdb";
        
        public Register()
        {
            InitializeComponent();
            MachineNum.Text = getMNum();
        }

        private int[]  intCode   = new int[127];     //  存储密钥
        private char[] charCode  = new char[33];     //  存储机器码字
        private int[]  intNumber = new int[33];      //  存机器码的Ascii值
        /// <summary>
        /// 获取CPU
        /// </summary>
        /// <returns>CPU字符串</returns>
        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;
        }
        /// <summary>
        /// 获取卷轴字符串
        /// </summary>
        /// <returns>卷轴字符串</returns>
        public string GetDiskVolumeSerialNumber()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObject disk = new ManagementObject("win32_logicaldisk.deviceid=\"d:\"");
            disk.Get();
            return disk.GetPropertyValue("VolumeSerialNumber").ToString();
        }

        /// <summary>
        /// 获取时间字符串
        /// </summary>
        /// <returns>时间字符串</returns>
        public string GetTimeStr()
        {
            /* 获取当前时间字符串函数 */
            string tempTimeStr = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString().PadLeft(2, '0')
                        +DateTime.Now.Day.ToString().PadLeft(2, '0'); /* 以年-月-日的格式命名文件 */
            return tempTimeStr;
        }

        /// <summary>
        /// 得到机器码
        /// </summary>
        /// <returns>机器码</returns>
        public string getMNum()
        {
            string strNum = getCPU() + GetDiskVolumeSerialNumber() + GetTimeStr();     //获得32位Cpu和硬盘序列号
            string strMNum = strNum.Substring(0, 32);                   //从生成的字符串中取出前32个字符做为机器码
            return strMNum;
        }
        /// <summary>
        ///  获得注册码
        /// </summary>
        /// <returns>注册码字符串</returns>
        public string getRNum()
        {
            SetIntCode();
            string strMNum = getMNum();
            for (int i = 1; i < charCode.Length; i++)   //存储机器码
            {
                charCode[i] = Convert.ToChar(strMNum.Substring(i - 1, 1));
            }
            for (int j = 1; j < intNumber.Length; j++)  //改变ASCII码值
            {
                intNumber[j] = Convert.ToInt32(charCode[j]) + intCode[Convert.ToInt32(charCode[j])];
            }
            string strAsciiName = "";   //注册码
            for (int k = 1; k < intNumber.Length; k++)  //生成注册码
            {

                if ((intNumber[k] >= 48 && intNumber[k] <= 57) || (intNumber[k] >= 65 && intNumber[k]
                    <= 90) || (intNumber[k] >= 97 && intNumber[k] <= 122))  //判断如果在0-9、A-Z、a-z之间
                {
                    strAsciiName += Convert.ToChar(intNumber[k]).ToString();
                }
                else if (intNumber[k] > 122)  //判断如果大于z
                {
                    strAsciiName += Convert.ToChar(intNumber[k] - 10).ToString();
                }
                else
                { 
                    strAsciiName += Convert.ToChar(intNumber[k] - 9).ToString();
                }
            }
            return strAsciiName;
        }
        /// <summary>
        /// 给数组赋值小于10的数
        /// </summary>
        public void SetIntCode()
        {
            for (int i = 1; i < intCode.Length; i++)
            {
                intCode[i] = i % 9;
            }
        }

        private void sign_Click(object sender, EventArgs e)
        {
            try
            {
                OleDbConnection conn;
                conn = new OleDbConnection(ConSql);
                if (RegNum.Text == getRNum())
                {
                    DateTime result = DateTime.Now.AddMonths(3);//获取当前时间往后3个月的时间点
                    string Username = namebox.Text;
                    string Password = passwordbox.Text;
                    bool read_flag = true;

                    conn.Open();
                    OleDbCommand cnd = conn.CreateCommand();
                    cnd = conn.CreateCommand();
                    cnd.CommandText = @"select * from [YunXin_Admin] where AdminName = '" + Username + "' and  Password = '" + Password + "'";
                    cnd.ExecuteNonQuery();
                    OleDbDataReader odr;
                    odr = cnd.ExecuteReader();
                    if (odr.Read())
                        read_flag = true;
                    else
                        read_flag = false;
                    conn.Close();

                    if(read_flag == false)
                    {
                        MessageBox.Show("注册成功！", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        conn.Open();
                        OleDbCommand cmd = conn.CreateCommand();
                        cmd = conn.CreateCommand();
                        cmd.CommandText = @"INSERT INTO YunXin_Admin([AdminName], [Password], [UserName], [expirydayte], [AdminPurview], [Working], [LastLoginTime], [LastLoginIP], [Explain], [AddTime])VALUES('" + Username + "', '";
                        cmd.CommandText += Password + "', '" + Username + "', '" + result + "', '" + "11,| 12,|" + "', '" + 1 + "', '" + result + "', '" + 15 + "', '" + "普通用户" + "', '" + result + "')";
                        cmd.ExecuteNonQuery();
                        conn.Close();
                        this.Close();
                    }
                    else
                    {
                        MessageBox.Show("更新成功！", "信息", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        conn.Open();
                        OleDbCommand cmd = conn.CreateCommand();
                        cmd = conn.CreateCommand();
                        
                        cmd.CommandText = @"UPDATE YunXin_Admin set [expirydayte] = '" + result + "'";
                        cmd.CommandText += " where AdminName = '" + Username + "' and  Password = '" + Password + "'";
                        cmd.ExecuteNonQuery();
                        conn.Close();
                        this.Close();
                    }
                    
                }
                else
                {
                    MessageBox.Show("注册码错误！", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                }
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }

        private void ignore_Click(object sender, EventArgs e)
        {
            this.Close();
            FormDevice fd = new FormDevice();
            fd.Show();
        }

        private void exit_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void Register_Load(object sender, EventArgs e)
        {

        }
    }
}