From fbd4cb810ab7a346bcb0c80a565d581d8256d954 Mon Sep 17 00:00:00 2001
From: ~noodlez1232 <contact@nathanielbarragan.xyz>
Date: Fri, 3 Jan 2025 12:19:17 -0800
Subject: [PATCH] AsteroidOS: Add volume control

This pull request adds volume control to the AsteroidOS implementation.
It's not quite what I wanted from it, but it's probably good enough.
Hopefully it's good enough for other people too
---
 .../asteroidos/AsteroidOSMediaCommand.java    | 25 +++++++++++++++++--
 .../asteroidos/AsteroidOSDeviceSupport.java   |  6 +++--
 2 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/asteroidos/AsteroidOSMediaCommand.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/asteroidos/AsteroidOSMediaCommand.java
index 316efd2de..a3cbacb41 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/asteroidos/AsteroidOSMediaCommand.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/asteroidos/AsteroidOSMediaCommand.java
@@ -16,6 +16,9 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.devices.asteroidos;
 
+import android.content.Context;
+import android.media.AudioManager;
+
 import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventMusicControl;
 
 /**
@@ -29,12 +32,18 @@ public class AsteroidOSMediaCommand {
     public static final byte COMMAND_VOLUME = 0x4;
 
     public byte command;
-    public AsteroidOSMediaCommand(byte value) {
-        command = value;
+    public byte[] raw_values;
+    public Context context;
+
+    public AsteroidOSMediaCommand(byte[] values, Context device_context) {
+        command = values[0];
+        raw_values = values;
+        context = device_context;
     }
 
     /**
      * Convert the MediaCommand to a music control event
+     *
      * @return the matching music control event
      */
     public GBDeviceEventMusicControl toMusicControlEvent() {
@@ -53,9 +62,21 @@ public class AsteroidOSMediaCommand {
                 event.event = GBDeviceEventMusicControl.Event.PAUSE;
                 break;
             case COMMAND_VOLUME:
+                setVolume(raw_values[1]);
+                event = null;
+                break;
             default:
                 event.event = GBDeviceEventMusicControl.Event.UNKNOWN;
         }
         return event;
     }
+
+    private void setVolume(byte volume) {
+        final AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
+
+        final int volumeMax = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
+        final int finalVol = (int) Math.round((volume * volumeMax) / 100f);
+        if (audioManager.getStreamVolume(AudioManager.STREAM_MUSIC) != finalVol)
+            audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, (int) Math.round((volume * volumeMax) / 100f), AudioManager.FLAG_SHOW_UI);
+    }
 }
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/asteroidos/AsteroidOSDeviceSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/asteroidos/AsteroidOSDeviceSupport.java
index bae9b9eb8..65b41c8b1 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/asteroidos/AsteroidOSDeviceSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/asteroidos/AsteroidOSDeviceSupport.java
@@ -18,6 +18,7 @@ package nodomain.freeyourgadget.gadgetbridge.service.devices.asteroidos;
 
 import android.bluetooth.BluetoothGatt;
 import android.bluetooth.BluetoothGattCharacteristic;
+import android.content.Context;
 
 import androidx.annotation.NonNull;
 
@@ -274,9 +275,10 @@ public class AsteroidOSDeviceSupport extends AbstractBTLEDeviceSupport {
      */
     public void handleMediaCommand (BluetoothGattCharacteristic characteristic) {
         LOG.info("handle media command");
-        AsteroidOSMediaCommand command = new AsteroidOSMediaCommand(characteristic.getValue()[0]);
+        AsteroidOSMediaCommand command = new AsteroidOSMediaCommand(characteristic.getValue(), getContext());
         GBDeviceEventMusicControl event = command.toMusicControlEvent();
-        evaluateGBDeviceEvent(event);
+        if (event != null)
+            evaluateGBDeviceEvent(event);
     }
 
     @Override