fresh start fixes

custom_components/bermuda/common/map.py

@@ -426,8 +426,12 @@ def bake_mean(self):
 			self.area_mean[area] = mean / count if count else 0
 			DBG('MEAN {} COUNT {} for {}', self.area_mean[area], count, area)
 
-		self.area_count_mean = statistics.mean(self.area_count.values())
-		self.area_mean_mean = statistics.mean(self.area_mean.values())
+		if self.area_count:
+			self.area_count_mean = statistics.mean(self.area_count.values())
+			self.area_mean_mean = statistics.mean(self.area_mean.values())
+		else:
+			self.area_count_mean = 0
+			self.area_mean_mean = 0
 		DBG('MEAN MEAN {} COUNT {}', self.area_mean_mean, self.area_count_mean)
 		# for area in self.areas:
 			# self.area_mean[area] = self.area_mean_mean / self.area_mean[area]

custom_components/bermuda/coordinator.py

@@ -515,8 +515,9 @@ def _get_device(self, address: str) -> BermudaDevice | None:
         mac = format_mac(address).lower()
         # format_mac tries to return a lower-cased, colon-separated mac address.
         # failing that, it returns the original unaltered.
-        if mac in self.devices:
-            return self.devices[mac]
+        if hasattr(self, devices):
+            if mac in self.devices:
+                return self.devices[mac]
         return None
 
     def _get_or_create_device(self, address: str) -> BermudaDevice: