fixed a bug causing Lite MK2 presets to appear as if they are from the current device

Author: Diyan391

lib/UI/widgets/presets/preset_list/presetItem.dart

@@ -109,7 +109,8 @@ class PresetItem extends StatelessWidget {
     bool selected = item["uuid"] == device.deviceControl.presetUUID;
     bool newItem = item.containsKey("new");
 
-    var dev = NuxDeviceControl.instance().getDeviceFromId(item["product_id"]) ??
+    var dev = NuxDeviceControl.instance()
+            .getDeviceFromPresetClass(item["product_id"]) ??
         device;
     Color color = dev.getPreset(0).channelColorsList[item["channel"]];
 

lib/UI/widgets/presets/preset_list/presetListMethods.dart

@@ -11,7 +11,8 @@ import '../../../popups/exportQRCode.dart';
 
 class PresetListMethods {
   static void exportQR(Map<String, dynamic> preset, BuildContext context) {
-    var dev = NuxDeviceControl.instance().getDeviceFromId(preset["product_id"]);
+    var dev = NuxDeviceControl.instance()
+        .getDeviceFromPresetClass(preset["product_id"]);
     var pVersion = preset["version"] ?? 0;
     if (dev != null) {
       int? originalVersion;

lib/UI/widgets/presets/preset_list/preset_widget.dart

@@ -126,7 +126,8 @@ class _PresetWidgetState extends State<PresetWidget> {
   void _changePresetChannel(Map<String, dynamic> preset) {
     List<String> channelList = [];
     int nuxChannel = preset["channel"];
-    var d = NuxDeviceControl.instance().getDeviceFromId(preset["product_id"]);
+    var d = NuxDeviceControl.instance()
+        .getDeviceFromPresetClass(preset["product_id"]);
 
     if (d != null) {
       for (int i = 0; i < d.channelsCount; i++) {

lib/bluetooth/NuxDeviceControl.dart

@@ -198,6 +198,15 @@ class NuxDeviceControl extends ChangeNotifier {
     return null;
   }
 
+  NuxDevice? getDeviceFromPresetClass(String presetClass) {
+    for (int i = 0; i < _deviceInstances.length; i++) {
+      if (_deviceInstances[i].presetClass == presetClass) {
+        return _deviceInstances[i];
+      }
+    }
+    return null;
+  }
+
   _clearDeviceStack({NuxDevice? device}) {
     bool notify = device == null;
     device ??= _device;