Update bulb health when bridge health changes

drivers/SmartThings/philips-hue/src/hue/api.lua

@@ -250,6 +250,8 @@ function PhilipsHueApi:get_lights() return do_get(self, "/clip/v2/resource/light
 
 function PhilipsHueApi:get_devices() return do_get(self, "/clip/v2/resource/device") end
 
+function PhilipsHueApi:get_connectivity_status() return do_get(self, "/clip/v2/resource/zigbee_connectivity") end
+
 function PhilipsHueApi:get_rooms() return do_get(self, "/clip/v2/resource/room") end
 
 function PhilipsHueApi:get_light_by_id(id)

drivers/SmartThings/philips-hue/src/init.lua

@@ -700,11 +700,48 @@ local function do_bridge_network_init(driver, device, bridge_url, api_key)
       log.info_with({ hub_logs = true },
         string.format("Event Source Connection for Hue Bridge \"%s\" established, marking online", device.label))
       device:online()
+
+
     end
 
     eventsource.onerror = function()
       log.error_with({ hub_logs = true }, string.format("Hue Bridge \"%s\" Event Source Error", device.label))
+
       device:offline()
+      local bridge_api = device:get_field(Fields.BRIDGE_API)
+      local child_device_map = {}
+      for _, device_record in ipairs(device:get_child_list()) do
+        local hue_device_id = device_record:get_field(Fields.HUE_DEVICE_ID)
+        if hue_device_id ~= nil then
+          child_device_map[hue_device_id] = device_record
+        end
+      end
+
+      local connectivity_status, rest_err = bridge_api:get_connectivity_status()
+      if rest_err ~= nil then
+        log.error(string.format("Couldn't query Hue Bridge %s for zigbee connectivity status for child devices: %s", device.label, rest_err))
+        return
+      end
+
+      if connectivity_status.errors and #connectivity_status.errors > 0 then
+        log.error(string.format("Hue Bridge %s replied with the following error message(s) when querying child device connectivity status:"))
+        for _, err in ipairs(connectivity_status.errors) do
+          log.error(string.format("--- %s", err))
+        end
+        return
+      end
+
+      for _, status in ipairs(connectivity_status.data) do
+        local hue_device_id = (status.owner and status.owner.rid) or ""
+        local child_device = child_device_map[hue_device_id]
+        if child_device then
+          if status.status and status.status == "connected" then
+            child_device:online()
+          else
+            child_device:offline()
+          end
+        end
+      end
     end
 
     eventsource.onmessage = function(msg)