Redmi Smart Band Pro: Fix crash on connection

Requesting alarms crashes the device - #3766

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/xiaomi/XiaomiCoordinator.java

@@ -581,4 +581,14 @@ public abstract class XiaomiCoordinator extends AbstractBLEDeviceCoordinator {
     public boolean checkDecryptionMac() {
         return true;
     }
+
+    /**
+     * Whether the device supports alarms. This differs from {@link #getAlarmSlotCount} since that
+     * returns the number of alarms dynamically after requesting them, but some devices will crash
+     * if we even attempt to request alarms and they do not support them - see
+     * <a href="https://codeberg.org/Freeyourgadget/Gadgetbridge/issues/3766">#3766</a>
+     */
+    public boolean supportsAlarms() {
+        return true;
+    }
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/xiaomi/redmismartbandpro/RedmiSmartBandProCoordinator.java

@@ -69,7 +69,14 @@ public class RedmiSmartBandProCoordinator extends XiaomiCoordinator {
 
     @Override
     public boolean checkDecryptionMac() {
+        // Sometimes it fails to decrypt with an invalid mac
         // https://codeberg.org/Freeyourgadget/Gadgetbridge/issues/3766
         return false;
     }
+
+    @Override
+    public boolean supportsAlarms() {
+        // Crashes when requesting alarms
+        return false;
+    }
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/services/XiaomiScheduleService.java

@@ -141,7 +141,9 @@ public class XiaomiScheduleService extends AbstractXiaomiService {
 
     @Override
     public void initialize() {
-        requestAlarms();
+        if (getCoordinator().supportsAlarms()) {
+            requestAlarms();
+        }
         requestReminders();
         requestWorldClocks();
         getSupport().sendCommand("get sleep mode", COMMAND_TYPE, CMD_SLEEP_MODE_GET);