Push Changes from Techcrafters Repo

uniper_hmi/UniperHMI/Common/UserManagementWindowVm.cs

@@ -0,0 +1,213 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+using Heisig.HMI.AdsManager;
+using HMIToolkit;
+using InfineonHMI.Common;
+using MahApps.Metro.Controls;
+using Microsoft.Win32;
+using System.Collections.ObjectModel;
+using System.ComponentModel.DataAnnotations;
+using System.Drawing.Text;
+using System.Security;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+using TwinCAT.TypeSystem;
+
+namespace Common;
+
+public sealed partial class UserManagementWindowVm : ObservableValidator
+{
+
+	private IAdsManager _adsManager;
+	private readonly string _variableName;
+
+	[ObservableProperty] private string? selectedUsername;
+
+	[ObservableProperty] private string newUser;
+
+	[ObservableProperty] private ObservableCollection<string>? savedUsers;
+
+	private ObservableCollection<User> users;
+
+	private UserManagementWindow dlg = new UserManagementWindow();
+
+	private string selectedUserPassword;
+
+	private string filePath = "C:\\ProgramData\\InfineonHMI_UserData\\Userdata.xml";
+
+	private string selectedUserPasswordWdh;
+	public User CurrentUser { get; set; }
+	public string SelectedUserPassword
+	{
+		get { return selectedUserPassword; }
+		set
+		{
+			SetProperty(ref selectedUserPassword, value);
+			IsCreateCommandEnabled = SelectedUserPasswordWdh.Equals(value) && !string.IsNullOrEmpty(value)&& CurrentUser.UserLevel>0;
+		}
+	}
+
+	public string? SelectedUserPasswordWdh
+	{
+		get { return selectedUserPasswordWdh; }
+		set
+		{
+			SetProperty(ref selectedUserPasswordWdh, value);
+			IsCreateCommandEnabled = SelectedUserPassword.Equals(value) && !string.IsNullOrEmpty(value) && CurrentUser.UserLevel > 0;
+		}
+	}
+
+	[ObservableProperty] private bool isCreateCommandEnabled;
+
+	
+	public UserManagementWindowVm()
+	{
+		IsCreateCommandEnabled = false;
+		CurrentUser = new("default", "default", 0);
+		users = L4ItXmlSerializer.DeSerializeObject<ObservableCollection<User>>(filePath);
+		savedUsers = new ObservableCollection<string>();
+		foreach (var user in users)
+		{
+			if (user.UserName != null)
+				savedUsers.Add(user.UserName);
+		}
+
+		selectedUserPassword = "";
+		selectedUserPasswordWdh = "";
+		selectedUsername = "";
+		SelectedUserPasswordWdh = "";
+		SelectedUserPassword = "";
+		SelectedUsername = "";
+	}
+
+	public UserManagementWindowVm(User curUser)
+	{
+		IsCreateCommandEnabled = true;
+		if (curUser != null)
+		{
+			CurrentUser = curUser;
+		}
+		else
+		{
+			CurrentUser = new User("unknown", "default", 100);
+		}
+		users = L4ItXmlSerializer.DeSerializeObject<ObservableCollection<User>>(filePath);
+		savedUsers = new ObservableCollection<string>();
+		if (users == null)
+		{
+			users = new ObservableCollection<User>();
+			users.Add(new User("default", "ssW+1nwLrdWTKi1tkE/pfQ==", 100));
+		}
+
+		
+		foreach (var user in users)
+		{
+			if(user.UserName != null) 
+				savedUsers.Add(user.UserName);
+		}
+
+		selectedUserPassword = "";
+		selectedUserPasswordWdh = "";
+		selectedUsername = "";
+		SelectedUserPasswordWdh = "";
+		SelectedUserPassword = "";
+		SelectedUsername = "";
+
+	}
+
+	public User GetCurrentUserLevel()
+	{
+		dlg.DataContext = this;
+
+		dlg.ShowDialog();
+		
+		return CurrentUser;
+	}
+
+	[RelayCommand]
+	private void Login()
+	{
+
+		User userInFile = new User("default", "default", 0);
+		bool userFound = false;
+		foreach (var user in users)
+		{
+			if (user.UserName.Equals(SelectedUsername))
+			{
+				userInFile = user;
+				userFound = true;
+				break;
+			}
+		}
+
+		if (userFound && CheckPassword(userInFile))
+		{
+			CurrentUser = userInFile;
+		}
+
+		dlg.Close();
+
+	}
+
+	[RelayCommand]
+	private void Logoff()
+	{
+		CurrentUser = new User("default", "default", 0);
+		dlg.Close();
+	}
+
+	[RelayCommand]
+	private void CreateUser()
+	{
+		if(!SelectedUserPassword.Equals(SelectedUserPasswordWdh))
+			return;
+
+		if (users == null)
+			users = new ();
+		var u = new User
+		{
+			UserName = NewUser,
+			PasswordHash = L4ItXmlSerializer.Encrypt(SelectedUserPassword),
+			UserLevel = 100,
+		};
+
+		users.Add(new User(u));
+		SavedUsers.Add(NewUser);
+
+		SelectedUserPassword = "";
+		SelectedUserPasswordWdh = "";
+
+		L4ItXmlSerializer.SerializeObject(users, filePath);
+
+	}
+
+	[RelayCommand]
+	private void DeleteUser()
+	{
+		if (SelectedUsername.Equals("default"))
+			return;
+
+		users.Remove(users.First(user => user.UserName.Equals(SelectedUsername)));
+
+		SavedUsers = new ObservableCollection<string>();
+		foreach (var user in users)
+		{
+			SavedUsers.Add(user.UserName);
+		}
+
+		L4ItXmlSerializer.SerializeObject(users, filePath);
+
+	}
+
+	private bool CheckPassword(User user)
+	{
+		var hashcode = L4ItXmlSerializer.Decrypt(user.PasswordHash);
+		if (hashcode.Equals(SelectedUserPassword)) 
+			return true;
+
+		return false;
+	}
+
+	
+}