[impl] add AssistantService foreground service

1 files changed, 73 insertions, 0 deletions

diff --git a/app/src/main/java/com/arslaancodes/mokuassistant/AssistantService.java b/app/src/main/java/com/arslaancodes/mokuassistant/AssistantService.java
new file mode 100644
index 0000000..d30ed2e
--- /dev/null
+++ b/app/src/main/java/com/arslaancodes/mokuassistant/AssistantService.java
@@ -0,0 +1,73 @@
+package com.arslaancodes.mokuassistant;
+
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.app.Service;
+import android.content.Intent;
+import android.os.Build;
+import android.os.IBinder;
+import android.util.Log;
+
+import androidx.core.app.NotificationCompat;
+
+public class AssistantService extends Service {
+	private static final String TAG = "moku";
+	private static final String CHANNEL_ID = "moku_assistant_channel";
+	private static final int NOTIFICATION_ID = 1001;
+
+	@Override
+	public void onCreate() {
+		super.onCreate();
+		createNotificationChannel();
+		Log.i(TAG, "AssistantService created");
+	}
+
+	@Override
+	public int onStartCommand(Intent intent, int flags, int startId) {
+		Log.i(TAG, "AssistantService started");
+
+		Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID).setContentTitle("moku Assistant").setContentText("listening...").setSmallIcon(android.R.drawable.ic_btn_speak_now).setPriority(NotificationCompat.PRIORITY_LOW).build();
+
+		startForeground(NOTIFICATION_ID, notification);
+
+		startAssistant();
+
+		return START_STICKY;
+	}
+
+	@Override 
+	public void onDestroy() {
+		Log.i(TAG, "AssistantService destroyed");
+		stopAssistant();
+		super.onDestroy();
+	}
+
+	@Override
+	public IBinder onBind(Intent intent) {
+		return null;
+	}
+
+	private void createNotificationChannel() {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+			NotificationChannel channel = new NotificationChannel(
+				CHANNEL_ID,
+				"moku Assistant",
+				NotificationManager.IMPORTANCE_LOW
+			);
+			channel.setDescription("Shows when moku Assistant is running");
+			NotificationManager manager = getSystemService(NotificationManager.class);
+			if (manager != null) {
+				manager.createNotificationChannel(channel);
+			}
+		}
+	}
+
+	// JNI functions
+	private static native void startAssistant();
+	private static native void stopAssistant();
+
+	static {
+		System.loadLibrary("moku");
+	}
+}