using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Net.Sockets;
using System.Text;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using StuMgmLib.MyNameSpace;

namespace StuMgmClient
{
    public partial class LoginForm : Form
    {
        public static LoginForm login;
        public LoginForm()
        {
            InitializeComponent();
        }
        string userName = "";
        string pawssWord = "";
        DataSet ds = null;
        private void btnSubmit_Click(object sender, EventArgs e)
        {
            Login();
        }
        //登陆方法
        public void Login()
        {
            userName = txtUserName.Text;
            pawssWord = txtPassWord.Text;

            //if (!RegexUser(userName, pawssWord))
            //{
            //    MessageBox.Show("用户名和密码必须包含数字，小写或大写，5到20位", "提示");
            //    return;
            //}
           
            Info.ServerSend ss = ConnectServer();
            //权限管理
            int powerNum = (int)ss.permission;
            ds = ss.ds;
            switch (powerNum)
            {
                case (int)Roles.Student:
                    StudentForm stu = new StudentForm(ds);
                    stu.Show(); 
                    login.Hide();
                    break;
                case (int)Roles.Teacher:
                    TeacherForm tf = new TeacherForm(ds);
                    tf.Show();
                    login.Hide();
                    break;
                case (int)Roles.Admin:
                    AdminForm af = new AdminForm();
                    af.Show();
                    login.Hide();
                    break;
                case (Int32)Roles.NotFound:
                    MessageBox.Show("账号或用户名错误", "提示");
                    break;
            }

        }
        //账号密码正则校验
        public bool RegexUser(string u, string p)
        {
            var regex = new Regex("^(?![0-9]+$)(?![a-zA-Z]+$)(?![a-z!@#$]+$)(?![A-Z!@#$]+$)(?![\\d!@#$]+$)^[a-zA-Z\\d!@#$]{5,20}$");
            //校验密码是否符合
            bool resultU = regex.IsMatch(u);
            bool resultP = regex.IsMatch(p);
            if (resultU == true && resultP == true)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        //登陆连接服务器
        public Info.ServerSend ConnectServer()
        {
           Socket client= ClientConnect.Connect("10.10.0.44", 502);
            if (client== null) 
            {
                MessageBox.Show("连接失败", "提示");
                return null;
            }
            else
            {
                ClientConnect.Send(client);
                Info.ServerSend ss = ClientConnect.Receive(client);
                return ss;
            }
        }
        //窗体加载
        private void LoginForm_Load(object sender, EventArgs e)
        {
            login = this;
        
        }
    }
}