Update RegisterWindow.xaml.cs

valiedierung

bibtalk/bib-talk/RegisterWindow.xaml.cs

@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Net.Http;
 using System.Text;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
@@ -14,8 +15,6 @@ using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using System.Windows.Navigation;
 using System.Windows.Shapes;
-using System.Net.Http;
-using Newtonsoft.Json;
 
 namespace bib_talk
 {
@@ -38,9 +37,10 @@ namespace bib_talk
                 DragMove();
             }
         }
+
         private void Login_Click(object sender, RoutedEventArgs e)
         {
-            Login login= new Login();
+            Login login = new Login();
             login.Show();
             this.Close();
         }
@@ -49,9 +49,17 @@ namespace bib_talk
         {
             if (checkboxAGB.IsChecked == true)
             {
-                RegisterServer();
+                if (ValidateRegistration())
+                {
+                    RegisterServer();
+                }
+            }
+            else
+            {
+                MessageBox.Show("Bitte akzeptieren Sie die AGB.");
             }
         }
+
         private void CheckBox_Checked(object sender, RoutedEventArgs e)
         {
             SolidColorBrush customBrush = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF6332A0"));
@@ -63,7 +71,48 @@ namespace bib_talk
         {
             SolidColorBrush customBrush = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FF323134"));
             weiterbutton.Foreground = Brushes.Gray;
-            weiterbutton.Background= customBrush;
+            weiterbutton.Background = customBrush;
+        }
+
+        private bool ValidateRegistration()
+        {
+            string username = usernbox.Text;
+            string password = passwordbox.Password;
+            string email = emailbox.Text;
+            string day = bday1.Text;
+            string month = bday2.Text;
+            string year = bday3.Text;
+
+            // Benutzername validieren
+            if (string.IsNullOrWhiteSpace(username) || username.Length < 3)
+            {
+                MessageBox.Show("Der Benutzername muss mindestens 3 Zeichen lang sein.");
+                return false;
+            }
+
+            // Passwort validieren
+            if (string.IsNullOrWhiteSpace(password) || password.Length < 6 || !Regex.IsMatch(password, @"^(?=.*[A-Za-z])(?=.*\d).{6,}$"))
+            {
+                MessageBox.Show("Das Passwort muss mindestens 6 Zeichen lang sein und sowohl Buchstaben als auch Zahlen enthalten.");
+                return false;
+            }
+
+            // E-Mail validieren
+            if (string.IsNullOrWhiteSpace(email) || !Regex.IsMatch(email, @"^[^@\s]+@[^@\s]+\.[^@\s]+$"))
+            {
+                MessageBox.Show("Bitte geben Sie eine gültige E-Mail-Adresse ein.");
+                return false;
+            }
+
+            // Geburtsdatum validieren
+            if (!int.TryParse(day, out int dayInt) || !int.TryParse(month, out int monthInt) || !int.TryParse(year, out int yearInt) ||
+                !DateTime.TryParse($"{yearInt}-{monthInt}-{dayInt}", out DateTime birthDate) || birthDate > DateTime.Now.AddYears(-14))
+            {
+                MessageBox.Show("Bitte geben Sie ein gültiges Geburtsdatum ein. Sie müssen mindestens 18 Jahre alt sein.");
+                return false;
+            }
+
+            return true;
         }
 
         public async Task RegisterServer()
@@ -71,8 +120,8 @@ namespace bib_talk
             string username = usernbox.Text;
             string password = passwordbox.Password;
             string email = emailbox.Text;
-            string birthday = bday1.Text+"."+bday2.Text+"."+bday3.Text;
+            string birthday = $"{bday1.Text}.{bday2.Text}.{bday3.Text}";
-            var newUser = new { Username = username, Password = password, Email = email, Birthday = birthday, IsOnline = ""};
+            var newUser = new { Username = username, Password = password, Email = email, Birthday = birthday, IsOnline = "" };
             string json = JsonConvert.SerializeObject(newUser);
 
             using (var client = new HttpClient())
@@ -82,11 +131,11 @@ namespace bib_talk
 
                 if (response.IsSuccessStatusCode)
                 {
-                    MessageBox.Show("Registration Succesful");
+                    MessageBox.Show("Registrierung erfolgreich.");
                 }
                 else
                 {
-                    MessageBox.Show("Registration failed."+ response);
+                    MessageBox.Show("Registrierung fehlgeschlagen. " + response);
                 }
             }
         }