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

using Stone.Common;
using System.Windows.Forms;
using System.Data;

namespace Stone.User
{
    public class UserInfo
    {
        public static int UserID = 0;
        public static string UserName = "";
        public static string Password = "";
        public static DataTable Authority = null;
        public static bool isLogin = false;

        /// <summary>
        /// 登录系统
        /// </summary>
        public static DialogResult Login()
        {
            frmLogin dialog = new frmLogin();
            DialogResult dr = dialog.ShowDialog();
            dialog.Dispose();

            return dr;
        }

        /// <summary>
        /// 操作员管理
        /// </summary>
        public static void UserManager()
        {
            frmUserManager dialog = new frmUserManager();
            dialog.ShowDialog();
            dialog.Dispose();
        }

        /// <summary>
        /// 修改操作员密码
        /// </summary>
        public static void AlterPassword()
        {
            frmPassword dialog = new frmPassword();
            dialog.ShowDialog();
            dialog.Dispose();
        }


        /// <summary>
        /// 判断是否有指定的权限
        /// </summary>
        /// <param name="authority">权限字串，请在数据库中的“t_UserAuthority”表中添加</param>
        /// <returns></returns>
        public static bool UserVerify(string authority)
        {
            bool result = false;

            if(Authority.Select("[Code]='" + authority + "'").Length > 0)

            {
                result = true;
            }
            return result;
        }

        /// <summary>
        /// 获取SQL连接字符串
        /// </summary>
        /// <returns></returns>
        public static string sqlconnstring()
        {
            string sql = "uid=" + MyAppconfig.ReadValue("SqlUser")
                     + ";pwd=" + MyStrings.DecryptStr(MyAppconfig.ReadValue("SqlPwd"))
                     + ";initial catalog=" + MyAppconfig.ReadValue("SqlDataBase")
                     + ";data source=" + MyAppconfig.ReadValue("SqlServer")
                     + ";TimeOut=" + MyAppconfig.ReadValue("SqlTimeOut");

            return sql;
        }

        /// <summary>
        /// 取得最后一次登录的操作员名
        /// </summary>
        /// <returns></returns>
        internal static string GetLastLoginUsername()
        {
            return MyAppconfig.ReadValue("LastLoginUser");
        }

        /// <summary>
        /// 保存最后一次登录的操作员名
        /// </summary>
        internal static void PutLastLoginUsername()
        {
            MyAppconfig.WriteValue("LastLoginUser", UserInfo.UserName);
        }



    }
}