using RKISPATTERN.Command;
using RKISPATTERN.Helpers;
using RKISPATTERN.Models;
using RKISPATTERN.View;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;

namespace RKISPATTERN.ViewModels
{
    class RegistrationViewModel : INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler? PropertyChanged;
        public void OnPropertyChanged([CallerMemberName] string prop = "")
        {
            if (PropertyChanged != null)
                PropertyChanged(this, new PropertyChangedEventArgs(prop));
        }
        string currentUserLogin;
        public string CurrentUserLogin
        {
            get { return currentUserLogin; }
            set
            {
                currentUserLogin = value;
                OnPropertyChanged("CurrentUserLogin");
            }
        }
        string currentUserFirstName;
        public string CurrentUserFirstName
        {
            get { return currentUserFirstName; }
            set
            {
                currentUserFirstName = value;
                OnPropertyChanged("CurrentUserFirstName");
            }
        }
        string currentUserSecondName;
        public string CurrentUserSecondName
        {
            get { return currentUserSecondName; }
            set
            {
                currentUserSecondName = value;
                OnPropertyChanged("CurrentUserSecondName");
            }
        }
        string currentUserThirdName;
        public string CurrentUserThirdName
        {
            get { return currentUserThirdName; }
            set
            {
                currentUserThirdName = value;
                OnPropertyChanged("CurrentUserThirdName");
            }
        }
        string currentUserPhone;
        public string CurrentUserPhone
        {
            get { return currentUserPhone; }
            set
            {
                currentUserPhone = value;
                OnPropertyChanged("CurrentUserPhone");
            }
        }
        private RelayCommand showAuthorizathionWindow;
        public RelayCommand ShowAuthorizathionWindow
        {
            get
            {
                return showAuthorizathionWindow ??
                (showAuthorizathionWindow = new RelayCommand(obj =>
                {
                    MainWindow reg = new MainWindow();
                    reg.Show();
                    Helper.CloseWindow<Registration>();
                }));
            }
        }
        private RelayCommand addNewUser;
        public RelayCommand AddNewUser
        {
            get
            {
                return addNewUser ??
                (addNewUser = new RelayCommand(obj =>
                {
                    PasswordBox pb = (PasswordBox)obj;
                    if (Helper.CheckLoginPass(currentUserLogin) &&
                    Helper.CheckLoginPass(pb.Password) && 
                    Helper.CheckPhone(currentUserPhone)&&
                    Helper.CheckName(currentUserFirstName)&&
                    Helper.CheckName(currentUserSecondName)&&
                    Helper.CheckName(currentUserThirdName))
                    {
                        using (DBContext db = new DBContext())
                        {
                            int maxId;
                            if (db.User.Count() > 0)
                            {
                                maxId = db.User.Max(u => u.Id);
                            }
                            else
                            {
                                maxId = 1;
                            }
                            User newUser = new User(maxId+1, currentUserFirstName, currentUserSecondName, currentUserThirdName, currentUserLogin, pb.Password, currentUserPhone);
                            db.User.Add(newUser);
                            db.SaveChanges();
                            MainWindow reg = new MainWindow();
                            reg.Show();
                            Helper.CloseWindow<Registration>();
                            MessageBox.Show("Пользователь создан");
                        }
                    }
                    else
                        MessageBox.Show("Данные введены неверно!");
                    }));
            }               
        }
    }
}