using PersonalFinance;
using PersonalFinanceWindow.ViewModel;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace PersonalFinanceWindow
{
    /// <summary>
    /// Interaction logic for Login.xaml
    /// </summary>
    public partial class Login : Window
    {
        private int defaultUser = 1;

        public Login()
        {
            InitializeComponent();
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            // Write code here to authenticate user
            // If authenticated, then set DialogResult=true
            if (password.Password.Equals(login.Text)){
                UserViewModel uvm = new UserViewModel();
                User u = uvm.Users.FirstOrDefault(i => i.Login == login.Text);

                if (u != null)
                {
                    UserViewModel.loggedUserId = u.UserId;
                    UserViewModel.loggedUser = u;
                    DialogResult = true;
                }
                else {
                    MessageBox.Show(this, "Bad login");
                }
            } else{
                MessageBox.Show(this, "Bad login");
                DialogResult = false;
            }
        }

        private void ExitButton_Click(object sender, RoutedEventArgs e)
        {
            DialogResult = false;
        }

        private void Window_KeyUp(object sender, KeyEventArgs e)
        {
            //sign in
            if (e.Key == Key.Return) { Button_Click(sender, e); }
            //exit
            if (e.Key == Key.Escape) { DialogResult = false; }
            //help
            if (e.Key == Key.F1) { 
                MessageBox.Show("Put your 'login name' and your secret 'password' into a form\nand then click on 'Sign in' button.\nOr click on 'Exit' button to exiting the program.",
                    "Help", MessageBoxButton.OK, MessageBoxImage.Information);
            }
            //auto sign in - only for testing purpose (Ctrl + Shift + F12 or just F12)
            if ((e.Key == Key.F12 &&
                (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl)) &&
                (Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift))) || (e.Key == Key.F12) || (e.Key == Key.F2) /*Only laziness*/)
            {
                UserViewModel uvm = new UserViewModel();
                UserViewModel.loggedUserId = defaultUser;
                UserViewModel.loggedUser = uvm.Users.FirstOrDefault(i => i.UserId == defaultUser);
                DialogResult = true; 
            }
        }
    }
}