platypush/platypush/entities/sensors.py

113 lines
2.7 KiB
Python

import logging
from sqlalchemy import (
Boolean,
Column,
ForeignKey,
Integer,
JSON,
Numeric,
String,
)
from .devices import Device, entity_types_registry
logger = logging.getLogger(__name__)
class Sensor(Device):
__abstract__ = True
if not entity_types_registry.get('RawSensor'):
class RawSensor(Sensor):
__tablename__ = 'raw_sensor'
id = Column(
Integer, ForeignKey(Device.id, ondelete='CASCADE'), primary_key=True
)
value = Column(String)
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
entity_types_registry['RawSensor'] = RawSensor
else:
RawSensor = entity_types_registry['RawSensor']
if not entity_types_registry.get('NumericSensor'):
class NumericSensor(Sensor):
__tablename__ = 'numeric_sensor'
id = Column(
Integer, ForeignKey(Device.id, ondelete='CASCADE'), primary_key=True
)
value = Column(Numeric)
min = Column(Numeric)
max = Column(Numeric)
unit = Column(String)
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
entity_types_registry['NumericSensor'] = NumericSensor
else:
NumericSensor = entity_types_registry['NumericSensor']
if not entity_types_registry.get('BinarySensor'):
class BinarySensor(Sensor):
__tablename__ = 'binary_sensor'
def __init__(self, *args, value=None, **kwargs):
if isinstance(value, str):
value = value.lower()
if value in {True, 1, '1', 't', 'true', 'on'}:
value = True
elif value in {False, 0, '0', 'f', 'false', 'off'}:
value = False
elif value is not None:
logger.warning(f'Unsupported value for BinarySensor type: {value}')
value = None
super().__init__(*args, value=value, **kwargs)
id = Column(
Integer, ForeignKey(Device.id, ondelete='CASCADE'), primary_key=True
)
value = Column(Boolean)
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
entity_types_registry['BinarySensor'] = BinarySensor
else:
BinarySensor = entity_types_registry['BinarySensor']
if not entity_types_registry.get('EnumSensor'):
class EnumSensor(Sensor):
__tablename__ = 'enum_sensor'
id = Column(
Integer, ForeignKey(Device.id, ondelete='CASCADE'), primary_key=True
)
value = Column(String)
values = Column(JSON)
__mapper_args__ = {
'polymorphic_identity': __tablename__,
}
entity_types_registry['EnumSensor'] = EnumSensor
else:
EnumSensor = entity_types_registry['EnumSensor']