Avalonia_2024/AvaloniaApplicationTestNew/ViewModels/MainWindowViewModel.cs

using Avalonia.Controls;
using ReactiveUI;
using AvaloniaApplicationTestNew.Views;
using AvaloniaApplicationTestNew.ViewModels;
using AvaloniaApplicationTestNew.Models;
using Microsoft.EntityFrameworkCore;
using System.Linq;
using System;

namespace AvaloniaApplicationTestNew.ViewModels
{
    public class MainWindowViewModel : ViewModelBase
    {
        UserControl uc = new Markup();
        UserControl page = new Authorization();

        Logined? current_user;
        AuthorizationViewModel authorizationViewModel = new AuthorizationViewModel();
        UserPageViewModel userPageViewModel;
        AdminPageViewModel adminPageViewModel;
        AddUserPageViewModel addUserPageViewModel;
        bool isButtonVisible;


        public Logined? Current_user { get => current_user; set => this.RaiseAndSetIfChanged(ref current_user, value); }
        public UserControl UC { get => uc; set => this.RaiseAndSetIfChanged(ref uc, value); }
        public UserControl Page { get => page; set => this.RaiseAndSetIfChanged(ref page,value); }
        public AuthorizationViewModel AuthorizationVM { get => authorizationViewModel; set => authorizationViewModel = value; }
        public UserPageViewModel UserPageVM { get => userPageViewModel; set => userPageViewModel = value; }
        public AdminPageViewModel AdminPageVM { get => adminPageViewModel; set => adminPageViewModel = value; }
        public AddUserPageViewModel AddUserPageVM { get => addUserPageViewModel; set => addUserPageViewModel = value; }

        public bool IsButtonVisible { get => isButtonVisible; set => this.RaiseAndSetIfChanged(ref isButtonVisible, value); }

        public static MainWindowViewModel Self;
        public MainWindowViewModel()
        {
            Self = this;
        }

        public void Loged()
        {
            IsButtonVisible = false;
            Current_user = myContext.Logineds.Include(x => x.User.IdGenderNavigation).FirstOrDefault(x => x.Login == AuthorizationVM.Login && x.Password == AuthorizationVM.Password);
            if (Current_user != null)
            {
                switch(Current_user.IdRole)
                {
                    case 1:
                        Page = new AdminPage();
                        AdminPageVM = new AdminPageViewModel();
                        GetAccess();
                        break;
                    case 2:
                        UserPageVM = new UserPageViewModel(current_user.User.IdUser);
                        Page = new UserPage();
                        break;
                }
                
            }
            else
            {
                AuthorizationVM.Message = "Неверные данные";
                AuthorizationVM.Error();
                Page = new Authorization();
            }
        }
        
        public void GetAccess()
        {
            IsButtonVisible = true;
        }
        public void BackToList()
        {
            if (IsButtonVisible)
            {
                Page = new AdminPage();
            }
        }
        public void DeleteUser()
        {
            int id = UserPageVM.Current_user.IdUser;
            if(myContext.Logineds.FirstOrDefault(x => x.Id == id).IdRole == 1)
            {
                UserPageVM.Message = "Пользователя нельзя удалить, так как он администратор";
            }
            else
            {
                myContext.Remove(myContext.Users.FirstOrDefault(x => x.IdUser == id));
                myContext.Remove(myContext.Logineds.FirstOrDefault(x => x.Id == id));
                myContext.SaveChanges();
                Page = new AdminPage();

            }
        }
    }
}