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;

namespace Shell
{
    public partial class Form1 : Form
    {
        bool insystem, error;
        string login, password, state, access;
        string[] rights;
        string[][] tabrights = new string [10][];
        string[] a;
        int user, cursor;
        int x, t;

        public void verify()
        {
            errorlabel.Visible = false;
            textBox1.Visible = true;
            button1.Visible = true;
            label1.Visible = true;
            x = (new Random()).Next(10);
            label1.Text = x.ToString();
        }

        public void show()
        {

        }

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            state = "unsigned";


            a = Directory.GetDirectories(@"D:\TZI");
            for (int i = 0; i < a.Length; i++)
            {
                a[i] = a[i].Substring(7);
            }
            rights = File.ReadAllLines(@"D:\TZI\S\users.txt");
            for (int i=0 ; i< rights.Length ; i++)
            {
                tabrights[i] = rights[i].Split(' ');
            }

        }


        private void textBox2_TextChanged(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            login = Loginfield.Text;
            password = Passwordfield.Text;
            for (int i=0; i<rights.Length; i++)
            {
                if (tabrights[i][0] == login)
                {
                    if (tabrights[i][1] == password)
                    {
                        /*state = login;
                        Statelabel.Text = state; */
                        error = false;
                        errorlabel.Visible = error;
                        textBox1.Visible = true;
                        button1.Visible = true;
                        label1.Visible = true;
                        x = (new Random()).Next(10);
                        label1.Text = x.ToString();
                        user = i;
                        break;
                    }
                    else
                    {
                        errorlabel.Text = "Wrong password";
                        error = true;
                        errorlabel.Visible = error;
                        Loginfield.Text = null;
                        Passwordfield.Text = null;
                        //func();
                        break;
                    }

                }
                else
                {
                    errorlabel.Text = "Login not found";
                    error = true;
                    errorlabel.Visible = error;
                    Loginfield.Text = null;
                    Passwordfield.Text = null;
                }
            }

            loginbutton.Visible = (state == "unsigned");
            Loginlabel.Visible = (state == "unsigned");
            Loginfield.Visible = (state == "unsigned");
            Passwordfield.Visible = (state == "unsigned");
            Passwordlabel.Visible = (state == "unsigned");
            logoutbutton.Visible = !(state == "unsigned");
        }

        private void button2_Click(object sender, EventArgs e)
        {
            state = "unsigned";
            Loginfield.Text = null;
            Passwordfield.Text = null;
            Statelabel.Text = state;
            folderlist.Items.Clear();
            loginbutton.Visible = (state == "unsigned");
            Loginlabel.Visible = (state == "unsigned");
            Loginfield.Visible = (state == "unsigned");
            Passwordfield.Visible = (state == "unsigned");
            Passwordlabel.Visible = (state == "unsigned");
            logoutbutton.Visible = !(state == "unsigned");
            accesslabel.Visible = false;
            folderlist.Visible = false;
            Folderslabel.Visible = false;
        }

        private void button3_Click(object sender, EventArgs e)
        {


        }

        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            cursor = folderlist.SelectedIndex;
            if (access.Contains(a[cursor]))
            {
                accesslabel.Text = "access granted";
                accesslabel.ForeColor = System.Drawing.Color.Green;
                accesslabel.Visible = true;
            }
            else
            {
                accesslabel.Text = "access denied";
                accesslabel.ForeColor = System.Drawing.Color.Red;
                accesslabel.Visible = true;
            }

        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            int f = 2 * x + 3;
            if (textBox1.Text == f.ToString())
            {
                state = tabrights[user][0];
                access = tabrights[user][2];
                folderlist.Items.AddRange(a);
                folderlist.Visible = true;
                Folderslabel.Visible = true;
                textBox1.Visible = false;
                button1.Visible = false;
                label1.Visible = false;
                loginbutton.Visible = (state == "unsigned");
                Loginlabel.Visible = (state == "unsigned");
                Loginfield.Visible = (state == "unsigned");
                Passwordfield.Visible = (state == "unsigned");
                Passwordlabel.Visible = (state == "unsigned");
                logoutbutton.Visible = !(state == "unsigned");
                Statelabel.Text = state;
                insystem = true;
                t = 10;
            }
            else
            {
                errorlabel.Text = "wrong function";
                textBox1.Visible = false;
                button1.Visible = false;
                label1.Visible = false;
            }
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (insystem && t>0)
            {
                t -= 1;
            }
            else
            {
                insystem = false;
                verify();
            }
        }


    }
}