using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading;
using System.Windows.Forms;

namespace MachineFrm
{
    public partial class SystemInfoFrm : Form
    {
        static string valsystem ;
        static string valmac ;
        static string valcpu ;
        static string valboard;
        public SystemInfoFrm()
        {
            InitializeComponent();
        }

        private void btnGet_Click(object sender, EventArgs e)
        {
            btnGet.Enabled = false;
            Thread.Sleep(3000);
            GetMachineInfo();
            btnGet.Enabled = true;
            MessageBox.Show("已经重新获取了机器信息！");
        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void SystemInfoFrm_Load(object sender, EventArgs e)
        {
            string a = GetKey();
            string b = GetKey2();

            GetMachineInfo();
        }


        public string GetKey()
        {
            string errorinfo = string.Empty;
            string val1 = "BFEBFBFF000906E9";
            string val2 = "/3B2LKQ2/CNFCW0086402KS/";
            return GetKeyInfo("",val1,val2,ref errorinfo);
        }

        public string GetKey2()
        {
            string errorinfo = string.Empty;
            string val1 = "BFEBFBFF000306C3";
            string val2 = "160162955501177";
            return GetKeyInfo("", val1, val2, ref errorinfo);
        }
        public void GetMachineInfo()
        {
            try
            {
                string a = Guid.NewGuid().ToString();

                valsystem = MachineInfo.GetSystemName() + "-" + MachineInfo.GetSystemType();
                valmac = MachineInfo.GetMacAddress();
                valcpu = MachineInfo.GetCpuID();
                valboard = MachineInfo.GetMotherBoardID();
                txtSystem.Text = valsystem;
                txtMac.Text = valmac;
                txtCpu.Text = valcpu;
                txtBoard.Text = valboard;
            }
            catch (Exception ex)
            {

                MessageBox.Show(ex.Message.ToString());
            }
        }

        private void btnExport_Click(object sender, EventArgs e)
        {
            try
            {
                FolderBrowserDialog ofd = new FolderBrowserDialog();
                if (ofd.ShowDialog() == DialogResult.OK)
                {
                    string targetPath = ofd.SelectedPath;
                    string filename = targetPath + Path.DirectorySeparatorChar + "SystemInfoFrm" + ".txt";

                    if (!Directory.Exists(targetPath))//验证路径是否存在
                    {
                        Directory.CreateDirectory(targetPath);
                        //不存在则创建
                    }
                    FileStream fs;
                    StreamWriter sw;
                    if (File.Exists(filename))
                    //验证文件是否存在，有则追加，无则创建
                    {
                        fs = new FileStream(filename, FileMode.Append, FileAccess.Write);
                    }
                    else
                    {
                        fs = new FileStream(filename, FileMode.Create, FileAccess.Write);
                    }
                    sw = new StreamWriter(fs);
                    //sw.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss") );
                    sw.WriteLine("[SystemInfoFrm]获取机器基本信息。time:" + DateTime.Now.ToString());
                    //sw.WriteLine("------------------------------------------------------------------");
                    sw.WriteLine($"操作系统：{valsystem}");
                    sw.WriteLine($"mac地址：{valmac}");
                    sw.WriteLine($"cpu序号：{valcpu}");
                    sw.WriteLine($"主板序号：{valboard}");
                    //sw.WriteLine("------------------------------------------------------------------");

                    sw.Close();
                    fs.Close();
                }

                MessageBox.Show("已成功导出SystemInfoFrm.txt文件！");
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message.ToString());
            }
        }

        private string GetKeyInfo(string keyone, string keytwo, string keythree, ref string errorinfo)
        {
            try
            {
                if (keyone == "unknown" || string.IsNullOrEmpty(keyone))
                {
                    //errorinfo = "GetMacAddress[unknown] ";
                    //return "";
                    keyone = "";
                }
                if (keytwo == "unknown")
                {
                    errorinfo = "GetCpuID[unknown] ";
                    return "";
                }
                if (keythree == "unknown")
                {
                    errorinfo = "GetMotherBoardID[unknown] ";
                    return "";
                }
                string k1 = "9d6a61dc-d5cf-4199-81b0-d4bb3ee6f613";
                string k2 = "b41f7f33-28a8-48fa-876a-87892f95d7f9";
                string str = $"{keyone}{k1}{keytwo}{k2}{keythree}";
                byte[] buffer = Encoding.Default.GetBytes(str);
                MD5 md5 = MD5.Create();
                byte[] bufferNew = md5.ComputeHash(buffer);
                string strNew = "";
                for (int i = 0; i < bufferNew.Length; i++)
                {
                    strNew += bufferNew[i].ToString("x2");
                }
                return strNew;
            }
            catch (Exception ex)
            {
                errorinfo = ex.Message.ToString();
                return "";
            }
        }

    }
}