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appdaemon/settings/apps/security/water_leak.py

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+import appdaemon.plugins.hass.hassapi as hass
+
+#
+# Water leak detector
+# close water valve and send a report
+#
+# Args:
+#
+# sensor = water leak sensor group
+# valve = water valve - app will close it, when leak is detected
+# notify = notify name to send notification
+#
+# None
+#
+# Release Notes
+#
+# Version 1.0:
+#   Initial Version
+
+class WaterLeak(hass.Hass):
+  ringtone = 2
+  gw_mac = ''
+  sensors = []
+  def initialize(self):
+    if 'sensor' not in self.args or 'valve' not in self.args or 'notify' not in self.args:
+      self.error("Please provide sensor, valve and notify in config!")
+      return
+    self.sensors = self.get_water_leak_sensors()
+    self.log("leak sensors: {}".format(self.sensors))
+    for sensor in self.sensors:
+      self.listen_state(self.water_leak, sensor)
+
+  def get_water_leak_sensors(self):
+    sensors = []
+    devices = self.get_state()
+    for sensor in devices:
+      if not sensor.startswith(self.args['sensor_prefix']):
+        continue
+      sensors.append(sensor)
+    return sensors
+
+  def water_leak(self, entity, attribute, old, new, kwargs):
+    if new == "on":
+      self.send_alarm()
+
+  def send_alarm(self):
+    self.log('water leak alarm triggered!')
+    if 'constraint' in self.args and not self.constrain_input_boolean(self.args['constraint']):
+      return
+
+    #close water valve
+    self.turn_off(self.args['valve'])
+    ## to ensure that water is closed. It is important!!!
+    self.call_service("mqtt/publish", topic = 'home/watercontrol/bath/valve/set', payload = 'close')
+    self.call_service("xiaomi_aqara/play_ringtone", gw_mac=self.gw_mac, ringtone_id=self.ringtone, ringtone_vol=100)
+
+    message = "ВНИМАНИЕ! В ваше отстутствие сработал датчик протечки воды!!! Выключаю подачу воды."
+    self.notify(message, name = self.args['notify'])
+
+    message = "Состояние датчиков протечки:\n"
+    for entity_id in self.sensors:
+      message += '{} ({}) = {}\n'.format(self.friendly_name(entity_id), entity_id, self.get_state(entity_id))
+    self.notify(message, name = self.args['notify'])

appdaemon/settings/apps/security/water_leak.yaml

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+#################################
+#         WATER LEAK            #
+#################################
+water_leak:
+  module: water_leak
+  class: WaterLeak
+  constraint: input_boolean.water_leak_control
+  sensor: group.water_leak_sensors
+  valve: switch.water_valve
+  sensor_prefix: binary_sensor.water_leak_
+  notify: telegram
+  gw_mac: !secret aqara1_mac
+  global_dependencies:
+    - globals