"""
:author: Thomas Delaet <thomas@delaet.org>
"""
import struct
from velbus.message import Message
from velbus.command_registry import register_command
COMMAND_CODE = 0x0D
[docs]class StartRelayBlinkingTimerMessage(Message):
"""
send by:
received by: VMB4RYLD
"""
def __init__(self, address=None):
Message.__init__(self)
self.relay_channels = []
self.delay_time = 0
self.set_defaults(address)
[docs] def set_defaults(self, address):
if address is not None:
self.set_address(address)
self.set_high_priority()
self.set_no_rtr()
[docs] def populate(self, priority, address, rtr, data):
"""
:return: None
"""
assert isinstance(data, bytes)
self.needs_high_priority(priority)
self.needs_no_rtr(rtr)
self.needs_data(data, 4)
self.set_attributes(priority, address, rtr)
self.relay_channels = self.byte_to_channels(data)
(self.delay_time,) = struct.unpack(">L", bytes([0]) + data[1:])
[docs] def data_to_binary(self):
"""
:return: bytes
"""
return (
bytes([COMMAND_CODE, self.channels_to_byte(self.relay_channels)])
+ struct.pack(">L", self.delay_time)[-3:]
)
register_command(COMMAND_CODE, StartRelayBlinkingTimerMessage)