From 04f47a0066c34acf8b2d155179bcb6933351ed87 Mon Sep 17 00:00:00 2001
From: Alberto Geniola <albertogeniola@gmail.com>
Date: Sun, 12 Apr 2020 00:49:09 +0200
Subject: [PATCH] Added missing common.py implementation

---
 custom_components/meross_cloud/common.py | 76 ++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 custom_components/meross_cloud/common.py

diff --git a/custom_components/meross_cloud/common.py b/custom_components/meross_cloud/common.py
new file mode 100644
index 0000000000..874dc3adb8
--- /dev/null
+++ b/custom_components/meross_cloud/common.py
@@ -0,0 +1,76 @@
+import logging
+
+from meross_iot.cloud.client_status import ClientStatus
+from meross_iot.meross_event import (ClientConnectionEvent)
+
+_LOGGER = logging.getLogger(__name__)
+
+# Constants
+DOMAIN = 'meross_cloud'
+ATTR_CONFIG = "config"
+MANAGER = 'manager'
+CLOUD_HANDLER = 'cloud_handler'
+MEROSS_MANAGER = "%s.%s" % (DOMAIN, MANAGER)
+SENSORS = 'sensors'
+HA_SWITCH = 'switch'
+HA_LIGHT = 'light'
+HA_SENSOR = 'sensor'
+HA_COVER = 'cover'
+HA_CLIMATE = 'climate'
+HA_FAN = 'fan'
+MEROSS_PLATFORMS = (HA_LIGHT, HA_SWITCH, HA_COVER, HA_SENSOR, HA_CLIMATE, HA_FAN)
+CONNECTION_TIMEOUT_THRESHOLD = 5
+
+
+def calculate_switch_id(uuid: str, channel: int):
+    return "%s:%s:%d" % (HA_SWITCH, uuid, channel)
+
+
+def calculate_sensor_id(uuid: str):
+    return "%s:%s" % (HA_SENSOR, uuid)
+
+
+def calculate_gerage_door_opener_id(uuid: str, channel: int):
+    return "%s:%s:%d" % (HA_COVER, uuid, channel)
+
+
+def dismiss_notification(hass, notification_id):
+    hass.async_create_task(
+        hass.services.async_call(domain='persistent_notification', service='dismiss', service_data={
+            'notification_id': "%s.%s" % (DOMAIN, notification_id)})
+    )
+
+
+def notify_error(hass, notification_id, title, message):
+    hass.async_create_task(
+        hass.services.async_call(domain='persistent_notification', service='create', service_data={
+                                           'title': title,
+                                           'message': message,
+                                           'notification_id': "%s.%s" % (DOMAIN, notification_id)})
+    )
+
+
+# TODO: better implement the following
+# The following is a ugly workaround to fix the connection problems we are experiencing so far.
+# The library needs a refactor.
+class ConnectionWatchDog(object):
+    def __init__(self, hass, platform):
+        self._hass = hass
+        self._platform = platform
+
+    # TODO: Handle online status via abstract class?
+    def connection_handler(self, event, *args, **kwargs):
+        if isinstance(event, ClientConnectionEvent):
+            if event.status == ClientStatus.CONNECTION_DROPPED:
+                # Notify offline status
+                for dev in self._hass.data[self._platform].entities:
+                    dev._is_online = False
+                    dev.schedule_update_ha_state(False)
+            elif event.status == ClientStatus.SUBSCRIBED:
+                for dev in self._hass.data[self._platform].entities:
+                    # API
+                    for d in self._hass.data[DOMAIN][MANAGER]._http_client.list_devices():
+                        if dev._device.uuid == d['uuid']:
+                            dev._is_online = d.get('onlineStatus', 0) == 1
+                            # if the device is online, force a status refresh
+                            dev.schedule_update_ha_state(dev._is_online)