using MESClassLibrary.BLL.Log;
using MESClassLibrary.BLL.User;
using MESClassLibrary.Model;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Reflection;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace MESWebSite
{
    public partial class Login : System.Web.UI.Page
    {
        UserBLL userclass = new UserBLL();
        UserModel md = new UserModel();
        private static readonly string passwordPattern = @"^(?=.*[0-9])(?=.*[a-zA-Z])(?=.*[!@#$%^&*()_+/,.?<>:;'\{}=])[a-zA-Z0-9!@#$%^&*()_+/,.?<>:;'\{}=]{8,12}$";

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {

            }
        }

        /// <summary>
        /// 登录按钮
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        protected void btnLogin_Click(object sender, EventArgs e)
        {
            try
            {
                string _loginName = this.LoginName.Text.Trim();
                string _loginpassword = this.LoginPassword.Text.Trim();
                //if (!IsValid(_loginpassword))
                //{
                //    ClientScript.RegisterStartupScript(ClientScript.GetType(), "错误", "<script>alert('密码弱，请修改密码');</script>");
                //}
                //else
                //{
                //    UserNameLogin(_loginName, _loginpassword);
                //}
                UserNameLogin(_loginName, _loginpassword);
            }
            catch (Exception ex)
            {
                LogErrBLL.AddInfo(ex.ToString(), MethodBase.GetCurrentMethod());
            }
        }
        

        public static bool IsValid(string password)
        {
            //使用正则表达式判断密码是否符合要求
            return Regex.IsMatch(password, passwordPattern);
        }

        /// <summary>
        /// 登录方法
        /// </summary>
        /// <param name="_loginName"></param>
        /// <param name="_loginpassword"></param>
        public void UserNameLogin(string _loginName, string _loginpassword)
        {
            try
            {
                int errTimes = 0;
                md.Username = _loginName;
                md.Password = _loginpassword;
                DateTime lastLoginTime;

                if (userclass.Login(md))
                {
                    DataTable dt_user = new DataTable();
                    dt_user = userclass.SearchUserInfoByUserName(md.Username);
                    md.ErrTimes = 0;

                    userclass.UpdateUserInfo(md);

                    HttpCookie cookie = new HttpCookie("LoginUserInfo");
                    cookie.HttpOnly = true;  
                    cookie["UserID"] = dt_user.Rows[0]["UserID"].ToString().Trim();
                    cookie["UserName"] = _loginName;
                    cookie["PassWord"] = _loginpassword;
                    cookie["RealName"] = HttpUtility.UrlEncode(dt_user.Rows[0]["RealName"].ToString().Trim(), System.Text.Encoding.UTF8);
                    //cookie.Expires = DateTime.Now.AddDays(14);
                    Response.Cookies.Add(cookie);

                    Response.Redirect("Manage/index.aspx", false);
                }
                else
                {
                    DataTable dt_user = new DataTable();
                    dt_user = userclass.SearchUserInfoByUserName(md.Username);
                    if (dt_user != null && dt_user.Rows.Count > 0)
                    {
                        errTimes = Convert.ToInt32(dt_user.Rows[0]["ErrTimes"].ToString());
                        lastLoginTime = Convert.ToDateTime(dt_user.Rows[0]["LastLoginTime"].ToString());

                        if (errTimes >= 3 && (DateTime.Now - lastLoginTime).TotalMinutes < 15)
                        {
                            md.ErrTimes = errTimes + 1;
                            userclass.UpdateUserInfo(md);
                            ClientScript.RegisterStartupScript(ClientScript.GetType(), "错误", "<script>alert('用户已锁定');</script>");
                        }
                        else
                        {
                            md.ErrTimes = errTimes + 1;
                            userclass.UpdateUserInfo(md);
                            ClientScript.RegisterStartupScript(ClientScript.GetType(), "错误", "<script>alert('用户名或密码错误，请重新输入');</script>");
                        }
                    }
                }

                #region 注销
                //if (userclass.Login(md))
                //{
                //    #region 下次自动登录-暂时注销
                //    //if (AutoLogin.Checked)
                //    //{
                //    //    HttpCookie cookie = new HttpCookie("LoginUserInfo");
                //    //    cookie["UserName"] = _loginName;
                //    //    cookie["PassWord"] = _loginpassword;
                //    //    cookie.Expires = DateTime.Now.AddDays(14);
                //    //    Response.Cookies.Add(cookie);
                //    //}
                //    //Session.Add("LoginUserInfo", md); 
                //    #endregion

                //    Response.Redirect("Manage/index.aspx", false);
                //}
                //else
                //{
                //    ClientScript.RegisterStartupScript(ClientScript.GetType(), "myscript", "<script>alert('用户名或密码错误，请重新输入');</script>");
                //} 
                #endregion
            }
            catch (Exception ex)
            {
                LogErrBLL.AddInfo(ex.ToString(), MethodBase.GetCurrentMethod());
            }
        }
    }
}