Use a service for TACNET Connection instead of an app thread

app/src/main/AndroidManifest.xml

@@ -7,6 +7,7 @@
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 
     <application

app/src/main/java/org/timecrafters/TimeCraftersConfigurationTool/tacnet/TACNETConnectionService.java

@@ -41,14 +41,21 @@ public class TACNETConnectionService extends Service {
 
     @Override
     public void onDestroy() {
+        disconnect();
         stopForeground(true);
     }
 
     private void connect() {
+        if (!Backend.instance().tacnet().isConnected()) {
+            final String hostname = Backend.instance().getSettings().hostname;
+            final int port = Backend.instance().getSettings().port;
+
+            Backend.instance().tacnet().connect(hostname, port);
+        }
     }
 
     private void disconnect() {
-        Backend.instance().stopServer();
+        Backend.instance().tacnet().close();
     }
 
     private void foregroundify() {
@@ -57,7 +64,8 @@ public class TACNETConnectionService extends Service {
         PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
 
         NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
-                .setContentTitle("TACNET Connection is running")
+                .setContentTitle("TACNET Connection")
+                .setContentText("Connected to: " + Backend.instance().getSettings().hostname + ":" + Backend.instance().getSettings().port)
                 .setSmallIcon(R.drawable.tacnet)
                 .setContentIntent(pendingIntent);
         Notification notification = builder.build();

app/src/main/java/org/timecrafters/TimeCraftersConfigurationTool/tacnet/TACNETServerService.java

@@ -6,7 +6,8 @@ import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.Service;
 import android.content.Intent;
-import android.graphics.BitmapFactory;
+import android.net.DhcpInfo;
+import android.net.wifi.WifiManager;
 import android.os.Build;
 import android.os.IBinder;
 import android.util.Log;
@@ -17,12 +18,19 @@ import org.timecrafters.TimeCraftersConfigurationTool.MainActivity;
 import org.timecrafters.TimeCraftersConfigurationTool.R;
 import org.timecrafters.TimeCraftersConfigurationTool.backend.Backend;
 
+import java.math.BigInteger;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.nio.ByteOrder;
+
 import static android.app.PendingIntent.FLAG_UPDATE_CURRENT;
 
 public class TACNETServerService extends Service {
     private static final String CHANNEL_ID = "TACNET_SERVER_SERVICE";
     private static final String TAG = "TACNETServerService";
     private static final int ID = 8962_0;
+    private Intent intent;
+    private String address;
 
     public TACNETServerService() {
     }
@@ -34,10 +42,12 @@ public class TACNETServerService extends Service {
 
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
+        this.intent = intent;
+
         createNotificationChannel();
 
-        foregroundify();
         startServer();
+        foregroundify();
 
         return START_REDELIVER_INTENT;
     }
@@ -53,6 +63,8 @@ public class TACNETServerService extends Service {
         if (Backend.instance().getServer() == null) {
             Log.i(TAG, "Starting server...");
             Backend.instance().startServer();
+
+            findAddress();
         }
     }
 
@@ -60,13 +72,34 @@ public class TACNETServerService extends Service {
         Backend.instance().stopServer();
     }
 
+    private void findAddress() {
+        final WifiManager manager = (WifiManager) super.getSystemService(WIFI_SERVICE);
+        final DhcpInfo dhcp = manager.getDhcpInfo();
+        int ipAddress = dhcp.ipAddress;
+
+         /* https://stackoverflow.com/a/54825244 */
+        ipAddress = (ByteOrder.nativeOrder().equals(ByteOrder.LITTLE_ENDIAN)) ?
+                Integer.reverseBytes(ipAddress) : ipAddress;
+        byte[] ipAddressByte = BigInteger.valueOf(ipAddress).toByteArray();
+
+        try {
+            InetAddress myAddr = InetAddress.getByAddress(ipAddressByte);
+            address = myAddr.getHostAddress();
+        } catch (UnknownHostException e) {
+            e.printStackTrace();
+        }
+
+        Log.i(TAG, "" + address);
+    }
+
     private void foregroundify() {
         Intent notificationIntent = new Intent(this, MainActivity.class);
         notificationIntent.putExtra("navigate_to_tacnet", true);
         PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, FLAG_UPDATE_CURRENT);
 
         NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
-                .setContentTitle("TACNET server is running")
+                .setContentTitle("TACNET Server")
+                .setContentText("Running at: " + address + ":" + Backend.instance().getSettings().port)
                 .setSmallIcon(R.drawable.tacnet)
                 .setContentIntent(pendingIntent);
         Notification notification = builder.build();

app/src/main/java/org/timecrafters/TimeCraftersConfigurationTool/ui/tacnet/TACNETHostFragment.java

@@ -20,6 +20,7 @@ import org.timecrafters.TimeCraftersConfigurationTool.R;
 import org.timecrafters.TimeCraftersConfigurationTool.backend.Backend;
 import org.timecrafters.TimeCraftersConfigurationTool.backend.TACNET;
 import org.timecrafters.TimeCraftersConfigurationTool.library.TimeCraftersFragment;
+import org.timecrafters.TimeCraftersConfigurationTool.tacnet.TACNETConnectionService;
 import org.timecrafters.TimeCraftersConfigurationTool.tacnet.TACNETServerService;
 import org.timecrafters.TimeCraftersConfigurationTool.tacnet.support.ConnectionStatsSyncHandler;
 import org.timecrafters.TimeCraftersConfigurationTool.tacnet.support.ServerStatsSyncHandler;
@@ -95,7 +96,7 @@ public class TACNETHostFragment extends TimeCraftersFragment {
             public void onClick(View v) {
                 Backend.instance().saveSettings();
 
-                Backend.instance().tacnet().connect(hostname.getText().toString(), Integer.parseInt(port.getText().toString()));
+                getActivity().startService(new Intent(getContext(), TACNETConnectionService.class));
 
                 root.removeAllViews();
                 inflateTACNETConnectionStatus(container);
@@ -125,7 +126,7 @@ public class TACNETHostFragment extends TimeCraftersFragment {
         disconnect.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                Backend.instance().tacnet().close();
+                getActivity().stopService(new Intent(getContext(), TACNETConnectionService.class));
                 Backend.instance().stopErrorSound();
                 connectionStatsSyncHandler.stop();
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sun Oct 25 13:32:16 CDT 2020
+#Tue Nov 10 11:51:46 CST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip