Merge branch 'main' of https://git.bib.de/PBG2H23ASA/HAG_BIB_Projekt

# Conflicts:
#	PrototypWPFHAG/MainWindow.xaml
#	PrototypWPFHAG/MainWindow.xaml.cs

PrototypWPFHAG/MainWindow.xaml

@@ -12,21 +12,41 @@
                  TitleCharacterCasing="Normal"
                  WindowTitleBrush="Firebrick"
                  Icon="pack://application:,,,/Images/databaseicon.png"
-                 ResizeMode="CanResizeWithGrip">
+                 ResizeMode="CanResizeWithGrip"
+                 Loaded="Window_Loaded">
     <Grid>
         <Border BorderBrush="Firebrick" BorderThickness="3" Padding="20">
             <StackPanel VerticalAlignment="Center" HorizontalAlignment="Center">
-                <!-- 用户名标签和输入框 -->
+
-                <TextBlock Text="USERNAME" Margin="0,10,0,0" FontSize="14" FontWeight="Bold" />
+                <!-- Username -->
+                <TextBlock Text="Benutzername" Margin="0,10,0,0" FontSize="14" FontWeight="Bold" />
                 <TextBox Width="200" Height="30" Margin="0,5,0,0" x:Name="UsernameTextBox" />
 
-                <!-- 密码标签和输入框 -->
+                <TextBlock Text="Passwort" Margin="0,10,0,0" FontSize="14" FontWeight="Bold" />
-                <TextBlock Text="PASSWORD" Margin="0,10,0,0" FontSize="14" FontWeight="Bold" />
+                <Grid>
-                <PasswordBox Width="200" Height="30" Margin="0,5,0,0" x:Name="PasswordTextBox" />
+                    <!-- Passwortbox (hidden when Password is visible) -->
+                    <PasswordBox Width="170" Height="30" Margin="0,5,34,0" x:Name="PasswordTextBox"
+                    PasswordChanged="PasswordTextBox_PasswordChanged"/>
 
+<<<<<<< HEAD
                 <!-- 登录按钮 -->
                 <Button Height="30" Width="100" Content="Log in" Margin="0,20,0,0" Click="LoginButton_Click" />
+=======
+                    <!-- Textbox for visible password (hidden at default) -->
+                    <TextBox Width="170" Height="30" Margin="0,5,34,0" x:Name="PasswordVisibleTextBox"
+                    Visibility="Collapsed" IsReadOnly="True"/>
+
+                    <!-- Button with Eye-Icon -->
+                    <Button Width="30" Height="30" Margin="175,5,0,0" Content="👁" 
+                    Click="ShowPasswordButton_Click"/>
+                </Grid>
+
+
+                <!-- Login Button -->
+                <Button Height="30" Width="100" Content="Zur Suche" Margin="0,20,0,0" 
+                        Click="loginButton_Click" IsDefault="True" />
+>>>>>>> 1195250b98172d34b8c49b85a81c21d1f26cdbac
             </StackPanel>
         </Border>
     </Grid>
-</mah:MetroWindow>
+</mah:MetroWindow>

PrototypWPFHAG/MainWindow.xaml.cs

@@ -25,46 +25,116 @@ public partial class MainWindow : MetroWindow
     public MainWindow()
     {
         InitializeComponent();
+<<<<<<< HEAD
         //TestConnection();
         //Console.ReadKey();
 
     }
 
     private static void TestConnection()
+=======
+    }
+
+    private void Window_Loaded(object sender, RoutedEventArgs e)
+    {
+        UsernameTextBox.Focus(); // Focus first TextBox on start
+    }
+
+    private static NpgsqlConnection GetConnection()
+    {
+        return new NpgsqlConnection("Server=localhost;Port=5432;User Id=postgres;Password=postgres;Database=postgres;");
+    }
+
+    private string ValidateUser(string username, string password)
+>>>>>>> 1195250b98172d34b8c49b85a81c21d1f26cdbac
     {
         using (NpgsqlConnection con = GetConnection())
         {
             con.Open();
-            if (con.State == ConnectionState.Open)
+
+            // Check for correct UserName
+            string userQuery = "SELECT COUNT(*) FROM \"User\" WHERE \"UserName\" = @username";
+            using (NpgsqlCommand userCmd = new NpgsqlCommand(userQuery, con))
             {
-                Console.WriteLine("Connected to Server");
+                userCmd.Parameters.AddWithValue("@username", username);
+                int userExists = Convert.ToInt32(userCmd.ExecuteScalar());
+
+                if (userExists == 0)
+                {
+                    return "Dieser Benutzername existiert nicht";
+                }
+            }
+            
+            // Check for correct Password
+            string pwQuery = "SELECT COUNT(*) FROM \"User\" WHERE \"UserName\" = @username AND \"Password\" = @password";
+            using (NpgsqlCommand pwCmd = new NpgsqlCommand(pwQuery, con))
+            {
+                pwCmd.Parameters.AddWithValue("@username", username);
+                pwCmd.Parameters.AddWithValue("@password", password);
+                int correctPassword = Convert.ToInt32(pwCmd.ExecuteScalar());
+
+                if (correctPassword == 0)
+                {
+                    return "Falsches Password!";
+                }
             }
         }
+<<<<<<< HEAD
     }
     private static NpgsqlConnection GetConnection()
     {
         return new NpgsqlConnection(@"Server=localhost;Port=7854;User Id=postgres;Database=postgres;");
+=======
+
+        return "Erfolgreich";
+>>>>>>> 1195250b98172d34b8c49b85a81c21d1f26cdbac
     }
 
-    //class Program
+    private void ShowPasswordButton_PreviewMouseDown(object sender, RoutedEventArgs e)
-    //{
+    {
-    //    static void Main(string[] args)
+        PasswordVisibleTextBox.Text = PasswordTextBox.Password; // Write password in the visible box
-    //    {
+        PasswordVisibleTextBox.Visibility = Visibility.Visible;
-    //        TestConnection();
+        PasswordTextBox.Visibility = Visibility.Collapsed;
-    //        Console.ReadKey();
+    }
-    //    }
+
-    //    private static void TestConnection()
+    private void ShowPasswordButton_Click(object sender, RoutedEventArgs e)
-    //    {
+    {
-    //        using(NpgsqlConnection con = GetConnection()){
+        if (PasswordTextBox.Visibility == Visibility.Visible)
-    //            con.Open();
+        {
-    //            if (con.State == ConnectionState.Open) {
+            // Show password
-    //                Console.WriteLine("Connected to Server");
+            PasswordVisibleTextBox.Text = PasswordTextBox.Password;
-    //            }
+            PasswordVisibleTextBox.Visibility = Visibility.Visible;
-    //        }
+            PasswordTextBox.Visibility = Visibility.Collapsed;
-    //    }
+        }
-    //    private static NpgsqlConnection GetConnection()
+        else
-    //    {
+        {
-    //        return new NpgsqlConnection(@"Server=localhost;Port=5432;User Id=postgres;Password=postgres;Database=TestServer;");
+            // Hide password
-    //    }
+            PasswordTextBox.Visibility = Visibility.Visible;
-    //}
+            PasswordVisibleTextBox.Visibility = Visibility.Collapsed;
+        }
+    }
+
+    // Syncs password with visible TextBox
+    private void PasswordTextBox_PasswordChanged(object sender, RoutedEventArgs e)
+    {
+        PasswordVisibleTextBox.Text = PasswordTextBox.Password;
+    }
+
+    private void loginButton_Click(object sender, RoutedEventArgs e)
+    {
+        string username = UsernameTextBox.Text;
+        string password = PasswordTextBox.Password;
+        string result = ValidateUser(username, password);
+
+        if (result == "Erfolgreich")
+        {
+            SearchWindow searchWindow = new();
+            searchWindow.Show(); // Open new window
+            this.Close(); // Close this window
+        }
+        else
+        {
+            MessageBox.Show(result, "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+        }
+    }
 }

PrototypWPFHAG/PrototypWPFHAG.csproj

@@ -4,7 +4,7 @@
 
     <OutputType>WinExe</OutputType>
 
-    <OutputType>Exe</OutputType>
+    <OutputType>WinExe</OutputType>
 
     <TargetFramework>net9.0-windows</TargetFramework>
     <Nullable>enable</Nullable>

PrototypWPFHAG/SearchWindow.xaml

@@ -1,7 +1,8 @@
-<Window x:Class="SuchenFenster.MainWindow"
+<Window x:Class="PrototypWPFHAG.SearchWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
-        Title="Suchen Fenster" Height="600" Width="800">
+        xmlns:local="clr-namespace:PrototypWPFHAG"
+        Title="Such Fenster" Height="600" Width="800">
     <Grid>
         <!-- 左侧垂直布局 -->
         <Grid.ColumnDefinitions>
@@ -40,6 +41,7 @@
                 </Border>
                 <Button Content="ADD" Width="60" Height="30" Grid.Column="1" Margin="5,0,0,0"/>
             </Grid>
+            <Button Content="Zurück " Margin="5,380" Click="BackToLogIn_Click"/>
         </StackPanel>
 
         <!-- 右侧区域 -->
@@ -47,19 +49,19 @@
             <Label Content="Zeugnisse:" HorizontalAlignment="Left" Margin="0,2,0,8"/>
             <!-- ListField -->
             <ListBox x:Name="ListField" Margin="0,29,0,35" BorderThickness="1" BorderBrush="Black">
-    <ListBox.ItemTemplate>
+                <ListBox.ItemTemplate>
-        <DataTemplate>
+                    <DataTemplate>
-            <StackPanel Orientation="Vertical">
+                        <StackPanel Orientation="Vertical">
-                <!-- 内容 -->
+                            <!-- 内容 -->
-                <TextBlock Text="{Binding}" VerticalAlignment="Center" HorizontalAlignment="Stretch" Padding="5"/>
+                            <TextBlock Text="{Binding}" VerticalAlignment="Center" HorizontalAlignment="Stretch" Padding="5"/>
-                <!-- 分隔线 -->
+                            <!-- 分隔线 -->
-                <Border Height="1" Background="Black" Margin="0,2,0,2"/>
+                            <Border Height="1" Background="Black" Margin="0,2,0,2"/>
-            </StackPanel>
+                        </StackPanel>
-        </DataTemplate>
+                    </DataTemplate>
-    </ListBox.ItemTemplate>
+                </ListBox.ItemTemplate>
-</ListBox>
+            </ListBox>
+
 
-           
             <!-- 删除按钮 -->
             <Button Content="Löschen" Width="100" Height="30" HorizontalAlignment="Right" VerticalAlignment="Bottom"/>
         </Grid>

PrototypWPFHAG/SearchWindow.xaml.cs

@@ -0,0 +1,34 @@
+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 PrototypWPFHAG
+{
+    /// <summary>
+    /// Interaktionslogik für SearchWindow.xaml
+    /// </summary>
+    public partial class SearchWindow : Window
+    {
+        public SearchWindow()
+        {
+            InitializeComponent();
+        }
+
+        private void BackToLogIn_Click(object sender, RoutedEventArgs e)
+        {
+                MainWindow loginWindow = new();
+                loginWindow.Show(); // Open new window
+                this.Close(); // Close this window
+        }
+    }
+}

PrototypWPFHAG/SuchenFenster.xaml.cs

@@ -1 +0,0 @@
-