using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Diagnostics;
using System.Management;
using System.Threading;

namespace GummingConfig
{
    public partial class FormMain : Form
    {
        public FormMain()
        {
            InitializeComponent();
            this.Load += FormMain_Load;          
        }

        private void FormMain_Load(object sender, EventArgs e)
        {
            
        }

        private void btnExecute_Click(object sender, EventArgs e)
        {
            try
            {
                this.Enabled = false;

                string connection = string.Format("Server={0};User={1};Password={2};Use Procedure Bodies=false;Charset=utf8;Allow Zero Datetime=True; Pooling=false; Max Pool Size=50;",
                    txtInstance.Text, txtUsername.Text, txtPassword.Text);
                MysqlHelper.connectionString = connection;
                try
                {
                    MysqlHelper.ExecuteNonQuery("Drop DATABASE IF EXISTS habitusdb;");
                }
                catch { }

                try
                {
                    string basePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles), @"MySQLServer");
                    string datafolder = Path.Combine(basePath, "data\\habitusdb");
                    System.IO.Directory.Delete(datafolder, true);
                }
                catch { }
                MysqlHelper.ExecuteNonQuery("CREATE DATABASE IF NOT EXISTS habitusdb default character set utf8 COLLATE utf8_general_ci;");

                connection = string.Format("Server={0};Database=habitusdb; User={1};Password={2};Use Procedure Bodies=false;Charset=utf8;Allow Zero Datetime=True; Pooling=false; Max Pool Size=50;",
                    txtInstance.Text, txtUsername.Text, txtPassword.Text);
                MysqlHelper.connectionString = connection;

                string sqlfile = Path.Combine(Environment.CurrentDirectory, "Database\\backup.sql");
                if (!File.Exists(sqlfile))
                    throw new Exception("数据库文件不存在");
                string sql = System.IO.File.ReadAllText(sqlfile);
                sql = "use habitusdb;" + sql;
                MysqlHelper.ExecuteNonQuery(sql);
                MessageBox.Show("成功设置默认数据库,系统配置完成后请在桌面双击运行中医体质自动识别系统");
                this.Close();
            }
            catch (Exception ep)
            {
                this.Enabled = true;
                MessageBox.Show("发生异常: " + ep.Message);
            }
        }

        private void btnInstall_Click(object sender, EventArgs e)
        {
            this.Enabled = false;
            this.Cursor = Cursors.WaitCursor;
            System.Diagnostics.Process.Start("regsvr32", "\"" + System.Windows.Forms.Application.StartupPath + "\\IRImage\\IRImage.OCX\"  /s");

            string str = string.Empty;   
            string query = "SELECT Name FROM Win32_Product WHERE Name LIKE '%MySQL Server%'";
            var searcher = new ManagementObjectSearcher("root\\CIMV2", query);            
            foreach (ManagementObject service in searcher.Get())
            {
                str += service["Name"];
                break;
            }            
            if(string.IsNullOrEmpty(str))
            {
                string basePath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles), @"MySQLServer");
                string inifile = Path.Combine(basePath, "my.ini");
                StreamWriter sw = new StreamWriter(inifile, false);
                sw.WriteLine("[client]");
                sw.WriteLine("port=3306");
                sw.WriteLine("default-character-set=utf8");
                sw.WriteLine("[mysqld]");
                sw.WriteLine("port=3306");
                sw.WriteLine("character_set_server=utf8");               
                sw.WriteLine("basedir=" + basePath);
                sw.WriteLine("datadir=" + Path.Combine(basePath, "data"));
                sw.WriteLine("sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES ");
                sw.Flush();
                sw.Close();

                ExecCommand(Path.Combine(basePath, @"bin\mysqld.exe"), " install MySQL --defaults-file=\"" + inifile + "\"");
               
                Process process = new Process();
                process.StartInfo.CreateNoWindow = true;
                process.StartInfo.UseShellExecute = false;                
                process.StartInfo.FileName = "cmd.exe";
                process.StartInfo.RedirectStandardInput = true;
                process.StartInfo.RedirectStandardOutput = true;
                process.StartInfo.RedirectStandardError = true;
                process.Start();
                process.StandardInput.WriteLine("cd\\");               
                process.StandardInput.WriteLine("net start mysql");
                process.StandardInput.WriteLine("exit");
                process.WaitForExit();
                string output = process.StandardOutput.ReadToEnd();
                process.Close();
                Thread.Sleep(3000);
                MessageBox.Show("成功安装Mysql数据库，请初始化数据库");
            }
            this.Enabled = true;
            this.Cursor = Cursors.Arrow;
            btnInstall.Enabled = false;
            btnExecute.Enabled = true;
        }

        private void ExecCommand(string command, string parameter)
        {
            System.Diagnostics.ProcessStartInfo procStartInfo = new System.Diagnostics.ProcessStartInfo(command, parameter);
            procStartInfo.RedirectStandardOutput = true;
            procStartInfo.UseShellExecute = false;
            procStartInfo.CreateNoWindow = true;
            System.Diagnostics.Process proc = new System.Diagnostics.Process();
            proc.StartInfo = procStartInfo;
            proc.Start();            
            Thread.Sleep(10000);
            proc.WaitForExit();
        }
    }
}