rfid via usb (#21)

* added second possible cardReader for windows

* refactored

* fixed checkstyle

* fixed wrong port selection

pom.xml

@@ -72,6 +72,12 @@
     </plugins>
   </build>
   <dependencies>
+    <dependency>
+      <groupId>com.fazecast</groupId>
+      <artifactId>jSerialComm</artifactId>
+      <version>2.6.0</version> <!-- Check for the latest version on the official repository -->
+    </dependency>
+
     <dependency>
       <artifactId>slf4j-api</artifactId>
       <groupId>org.slf4j</groupId>

src/main/java/org/schafkopf/BackendServer.java

@@ -16,13 +16,16 @@ import org.eclipse.jetty.servlet.FilterHolder;
 import org.eclipse.jetty.servlet.ServletContextHandler;
 import org.eclipse.jetty.servlets.CrossOriginFilter;
 import org.eclipse.jetty.websocket.server.config.JettyWebSocketServletContainerInitializer;
+import org.schafkopf.cardreader.CardReader;
+import org.schafkopf.cardreader.GpioReader;
+import org.schafkopf.cardreader.UsbCardReader;
 
 /** Main Class that represents the Backend Server. */
 public class BackendServer {
   private final Server server;
   private final ServerConnector connector;
   private final Schafkopf schafkopfGame;
-  private final KartenLeser nfcLeser;
+  private final CardReader nfcLeser;
   private final List<FrontendEndpoint> frontendEndpoints = new ArrayList<>();
   private CountDownLatch nfcLatch = new CountDownLatch(1);
   private Boolean readingMode = false;
@@ -39,7 +42,20 @@ public class BackendServer {
     server.addConnector(connector);
 
     schafkopfGame = new Schafkopf(this);
-    nfcLeser = new KartenLeser(this);
+    //    nfcLeser = new RaspberryKartenLeser(this);
+    String osName = System.getProperty("os.name").toLowerCase();
+    if (osName.contains("win")) {
+      // Windows
+      nfcLeser = new UsbCardReader(this);
+    } else if (osName.contains("nix") || osName.contains("nux") || osName.contains("mac")) {
+      // Unix/Linux/Mac
+      // You can add additional checks for specific Linux distributions or macOS versions if needed
+      // For now, assuming Raspberry Pi is running Linux
+      nfcLeser = new GpioReader(this);
+    } else {
+      // Other OS
+      throw new RuntimeException("Unsupported OS: " + osName);
+    }
 
     // Setup the basic application "context" for this application at "/"
     // This is also known as the handler tree (in jetty speak)

src/main/java/org/schafkopf/cardreader/CardReader.java

@@ -0,0 +1,13 @@
+package org.schafkopf.cardreader;
+
+import org.schafkopf.BackendServer;
+
+/** Class that represents one Card Reader. */
+public abstract class CardReader {
+
+  protected static BackendServer server;
+
+  public CardReader(BackendServer server) {
+    this.server = server;
+  }
+}

src/main/java/org/schafkopf/cardreader/GpioReader.java

@@ -1,4 +1,4 @@
-package org.schafkopf;
+package org.schafkopf.cardreader;
 
 import com.pi4j.io.i2c.I2C;
 import java.io.IOException;
@@ -6,21 +6,18 @@ import mk.hsilomedus.pn532.Pn532ContextHelper;
 import mk.hsilomedus.pn532.Pn532I2c;
 import mk.hsilomedus.pn532.Pn532SamThread;
 import mk.hsilomedus.pn532.Pn532SamThread.Pn532SamThreadListener;
+import org.schafkopf.BackendServer;
 
-/**
- * Class that represents the NFC Reader.
- */
-public final class KartenLeser {
-
-  private static BackendServer server;
+/** Class that represents the NFC Reader. */
+public final class GpioReader extends CardReader {
 
   /**
    * Creates an Instance of the KartenLeser.
    *
    * @param server Backend Server to call methods on.
    */
-  public KartenLeser(BackendServer server) {
-    this.server = server;
+  public GpioReader(BackendServer server) {
+    super(server);
 
     new Thread(
             () -> {

src/main/java/org/schafkopf/cardreader/UsbCardReader.java

@@ -0,0 +1,80 @@
+package org.schafkopf.cardreader;
+
+import com.fazecast.jSerialComm.SerialPort;
+import java.io.UnsupportedEncodingException;
+import org.schafkopf.BackendServer;
+
+/** Class that represents the NFC Reader. */
+public class UsbCardReader extends CardReader {
+
+  private volatile boolean isRunning = true;
+
+  /**
+   * Creates an Instance of the KartenLeser.
+   *
+   * @param server Backend Server to call methods on.
+   */
+  public UsbCardReader(BackendServer server) {
+    super(server);
+
+    new Thread(this::run).start();
+  }
+
+  public void stop() {
+    isRunning = false;
+  }
+
+  /** run the reader. */
+  public void run() {
+    SerialPort[] ports = SerialPort.getCommPorts();
+    SerialPort selectedPort = null;
+
+    for (SerialPort port : ports) {
+      if (port.getSystemPortName().equals("COM16")) {
+        selectedPort = port;
+        break;
+      }
+    }
+
+    if (selectedPort == null) {
+      System.out.println("COM6 not found");
+      return;
+    }
+
+    if (ports.length == 0) {
+      System.out.println("No serial ports found");
+      return;
+    }
+
+    SerialPort serialPort = selectedPort; // You may need to adjust this based on your setup
+    serialPort.setBaudRate(115200);
+
+    if (serialPort.openPort()) {
+      System.out.println("Serial port opened successfully");
+
+      try {
+        while (isRunning) {
+          if (serialPort.bytesAvailable() > 0) {
+            byte[] buffer = new byte[serialPort.bytesAvailable()];
+            int bytesRead = serialPort.readBytes(buffer, buffer.length);
+
+            String data = new String(buffer, 0, bytesRead, "UTF-8").trim();
+            server.nfcGelesen(data);
+          }
+
+          // Optional: Add a delay to avoid consuming too much CPU
+          Thread.sleep(100);
+        }
+      } catch (InterruptedException e) {
+        e.printStackTrace();
+      } catch (UnsupportedEncodingException e) {
+        throw new RuntimeException(e);
+      } finally {
+        serialPort.closePort();
+        System.out.println("Serial port closed");
+      }
+    } else {
+      System.out.println("Failed to open serial port");
+    }
+  }
+}

src/main/java/org/schafkopf/karte/KartenUtil.java

@@ -44,7 +44,7 @@ public class KartenUtil {
    */
   public static Karte getIdOfUid(String uid) {
     return switch (uid) {
-      case "04A56BB4780000" -> Karte.EICHEL_7;
+      case "04E7A9C2126F80" -> Karte.EICHEL_7;
       case "04A46BB4780000" -> Karte.EICHEL_8;
       case "04A26BB4780000" -> Karte.EICHEL_9;
       case "04A16BB4780000" -> Karte.EICHEL_X;