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.Data.SqlClient;

namespace GeoTema
{
    public partial class MainMenu : Form
    {
        public MainMenu()
        {
            InitializeComponent();
        }
        public static string User = "";
        public static string Pass = "";
        public static string type = "";

        private void btnLogin_Click(object sender, EventArgs e)
        {
            User = txtUserName.Text;
            Pass = txtPassword.Text;

            string statement = "use GeoTema_Users select Usertype from Users where Username = '" + User + "' and Password = '" + Pass + "'";
            type = Sql.SQLCheck(statement); //Runs a method to determine if the login exists and returns the type of user

            if (Pass == "Passw0rd")
            {
                MessageBox.Show("Password is currently the default one. Please change it!");
                this.Hide();
                ChangeDefaultPassword Pass1 = new ChangeDefaultPassword();
                Pass1.ShowDialog();
                this.Close();
            }
            else
            {
                switch (type) //Uses the type of user to determine what part of the program to send them to
                {
                    case "administrator":
                        {
                            this.Hide();
                            AdminMenu Admin1 = new AdminMenu();
                            Admin1.ShowDialog();
                            this.Close();
                            break;
                        }
                    case "super user":
                        {
                            this.Hide();
                            SuperMenu Super1 = new SuperMenu();
                            Super1.ShowDialog();
                            this.Close();
                            break;
                        }
                    case "user":
                        {
                            this.Hide();
                            UserMenu User1 = new UserMenu();
                            User1.ShowDialog();
                            this.Close();
                            break;
                        }
                }
            }       
        }
        public bool PasswordCheck(string Password) //This method takes an inputted string and checks that it meets certain requirements and returns either true or false
        {
            bool OK = true;
            int SmallLetter = 0;
            int BigLetter = 0;
            int Number = 0;

            for(int i=0;i<Password.Length;i++)
            {
                if ("abcdefghijklmnopqrstuvwxyzåæø".IndexOf(Password.Substring(i, 1)) > 0)
                    SmallLetter++;
                if ("ABCDEFGHIJKLMNOPQRSTUVWXYZÅÆØ".IndexOf(Password.Substring(i, 1)) > 0)                
                    BigLetter++;
                if ("0123456789".IndexOf(Password.Substring(i, 1)) > 0)
                    Number++;
            }
            if (SmallLetter > 0 && BigLetter > 0 && Number > 0 && Password.Length >=8) //The string must have at least 1 of each: small letter, big letter and number AND it must be at least 8 characters
                OK = true;
            else
                OK = false;

            return OK;
        }
    }
}