Nothing: add option to auto-reply to incoming phone calls

The new preference to toggle the auto-reply behavior is not
prefixed with the device name, as I guess it could be useful
also for other bluetooth headphones

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/devicesettings/DeviceSettingsPreferenceConst.java

@@ -436,4 +436,6 @@ public class DeviceSettingsPreferenceConst {
     public static final String PREF_CLAP_HANDS_TO_WAKEUP_DEVICE = "pref_key_clap_hands_to_wakeup_device";
     public static final String PREF_POWER_SAVING = "pref_key_power_saving";
     public static final String PREF_FORCE_CONNECTION_TYPE = "pref_force_connection_type";
+
+    public static final String PREF_AUTO_REPLY_INCOMING_CALL = "pref_auto_reply_phonecall";
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/devicesettings/DeviceSpecificSettingsFragment.java

@@ -476,6 +476,7 @@ public class DeviceSpecificSettingsFragment extends AbstractPreferenceFragment i
         addPreferenceHandlerFor(PREF_DISPLAY_CALLER);
         addPreferenceHandlerFor(PREF_NOTIFICATION_DELAY_CALLS);
         addPreferenceHandlerFor(PREF_CALL_REJECT_METHOD);
+        addPreferenceHandlerFor(PREF_AUTO_REPLY_INCOMING_CALL);
 
         addPreferenceHandlerFor(PREF_SLEEP_MODE_SLEEP_SCREEN);
         addPreferenceHandlerFor(PREF_SLEEP_MODE_SMART_ENABLE);

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/nothing/Ear1Support.java

@@ -16,15 +16,17 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.service.devices.nothing;
 
-import android.net.Uri;
+import android.content.SharedPreferences;
+import android.os.Handler;
+import android.os.Looper;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.ArrayList;
+import nodomain.freeyourgadget.gadgetbridge.GBApplication;
-import java.util.UUID;
+import nodomain.freeyourgadget.gadgetbridge.activities.devicesettings.DeviceSettingsPreferenceConst;
-
+import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventCallControl;
-import nodomain.freeyourgadget.gadgetbridge.model.Alarm;
+import nodomain.freeyourgadget.gadgetbridge.model.CallSpec;
 import nodomain.freeyourgadget.gadgetbridge.service.serial.AbstractSerialDeviceSupport;
 import nodomain.freeyourgadget.gadgetbridge.service.serial.GBDeviceIoThread;
 import nodomain.freeyourgadget.gadgetbridge.service.serial.GBDeviceProtocol;
@@ -33,6 +35,29 @@ public class Ear1Support extends AbstractSerialDeviceSupport {
     private static final Logger LOG = LoggerFactory.getLogger(Ear1Support.class);
 
 
+    @Override
+    public void onSetCallState(CallSpec callSpec) {
+        SharedPreferences prefs = GBApplication.getDeviceSpecificSharedPrefs(getDevice().getAddress());
+
+        if (!prefs.getBoolean(DeviceSettingsPreferenceConst.PREF_AUTO_REPLY_INCOMING_CALL, false))
+            return;
+
+        if(CallSpec.CALL_INCOMING != callSpec.command)
+            return;
+
+        LOG.debug("Incoming call, scheduling auto answer in 10 seconds.");
+        Looper mainLooper = Looper.getMainLooper();
+        new Handler(mainLooper).postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                GBDeviceEventCallControl callCmd = new GBDeviceEventCallControl();
+                callCmd.event = GBDeviceEventCallControl.Event.ACCEPT;
+                evaluateGBDeviceEvent(callCmd);
+            }
+        }, 15000); //15s
+
+    }
+
     @Override
     public void onSendConfiguration(String config) {
         super.onSendConfiguration(config);

app/src/main/res/values/strings.xml

@@ -2774,4 +2774,6 @@
     <string name="pref_dashboard_select_devices_summary">Combine activity data from specific devices for the totals on the dashboard</string>
     <string name="pref_dashboard_widget_today_hr_interval_title">Heart rate interval</string>
     <string name="pref_dashboard_widget_today_hr_interval_summary">The amount of minutes the chart shows \'worn\' after each successful heart rate measurement</string>
+    <string name="pref_auto_reply_calls_summary">The phone will automatically pick-up incoming phonecalls</string>
+    <string name="pref_auto_reply_calls_title">Automatically answer phone calls</string>
 </resources>

app/src/main/res/xml/devicesettings_nothing_ear1.xml

@@ -14,4 +14,10 @@
         android:key="pref_nothing_audiomode"
         android:summary="%s"
         android:title="@string/nothing_prefs_audiomode_title" />
+    <SwitchPreferenceCompat
+        android:defaultValue="false"
+        android:icon="@drawable/ic_phone"
+        android:key="pref_auto_reply_phonecall"
+        android:summary="@string/pref_auto_reply_calls_summary"
+        android:title="@string/pref_auto_reply_calls_title"/>
 </androidx.preference.PreferenceScreen>