From e2d7798e36ae33ee632a778a0b1464aeda52cf8d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Rebelo?= <joserebelo@outlook.com>
Date: Sun, 22 Oct 2023 11:58:55 +0100
Subject: [PATCH] Xiaomi: Refuse delete of active watchface

---
 .../xiaomi/services/XiaomiWatchfaceService.java      | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/services/XiaomiWatchfaceService.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/services/XiaomiWatchfaceService.java
index f290547ab..5c41dcdd3 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/services/XiaomiWatchfaceService.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/xiaomi/services/XiaomiWatchfaceService.java
@@ -46,6 +46,7 @@ public class XiaomiWatchfaceService extends AbstractXiaomiService {
 
     private final Set<UUID> allWatchfaces = new HashSet<>();
     private final Set<UUID> userWatchfaces = new HashSet<>();
+    private UUID activeWatchface = null;
 
     public XiaomiWatchfaceService(final XiaomiSupport support) {
         super(support);
@@ -89,6 +90,7 @@ public class XiaomiWatchfaceService extends AbstractXiaomiService {
 
         allWatchfaces.clear();
         userWatchfaces.clear();
+        activeWatchface = null;
 
         final List<GBDeviceApp> gbDeviceApps = new ArrayList<>();
 
@@ -98,6 +100,9 @@ public class XiaomiWatchfaceService extends AbstractXiaomiService {
             if (watchface.getCanDelete()) {
                 userWatchfaces.add(uuid);
             }
+            if (watchface.getActive()) {
+                activeWatchface = uuid;
+            }
 
             GBDeviceApp gbDeviceApp = new GBDeviceApp(
                     uuid,
@@ -120,6 +125,8 @@ public class XiaomiWatchfaceService extends AbstractXiaomiService {
             return;
         }
 
+        activeWatchface = uuid;
+
         LOG.debug("Set watchface to {}", uuid);
 
         getSupport().sendCommand(
@@ -147,6 +154,11 @@ public class XiaomiWatchfaceService extends AbstractXiaomiService {
             return;
         }
 
+        if (uuid.equals(activeWatchface)) {
+            LOG.warn("Refusing to delete active watchface {}", uuid);
+            return;
+        }
+
         LOG.debug("Delete watchface {}", uuid);
 
         allWatchfaces.remove(uuid);