mirror of
https://github.com/mjg59/python-broadlink.git
synced 2024-11-14 03:20:14 +01:00
12fdf01631
* Improve typing * Use better names * Clean up switch.py * Remove unused import * Run black * Remove unnecessary comments * Clean up climate.py
50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
import datetime as dt
|
|
import time
|
|
|
|
|
|
class Datetime:
|
|
"""Helps to pack and unpack datetime objects for the Broadlink protocol."""
|
|
|
|
@staticmethod
|
|
def pack(datetime: dt.datetime) -> bytes:
|
|
"""Pack the timestamp to be sent over the Broadlink protocol."""
|
|
data = bytearray(12)
|
|
utcoffset = int(datetime.utcoffset().total_seconds() / 3600)
|
|
data[:0x04] = utcoffset.to_bytes(4, "little", signed=True)
|
|
data[0x04:0x06] = datetime.year.to_bytes(2, "little")
|
|
data[0x06] = datetime.minute
|
|
data[0x07] = datetime.hour
|
|
data[0x08] = int(datetime.strftime("%y"))
|
|
data[0x09] = datetime.isoweekday()
|
|
data[0x0A] = datetime.day
|
|
data[0x0B] = datetime.month
|
|
return data
|
|
|
|
@staticmethod
|
|
def unpack(data: bytes) -> dt.datetime:
|
|
"""Unpack a timestamp received over the Broadlink protocol."""
|
|
utcoffset = int.from_bytes(data[0x00:0x04], "little", signed=True)
|
|
year = int.from_bytes(data[0x04:0x06], "little")
|
|
minute = data[0x06]
|
|
hour = data[0x07]
|
|
subyear = data[0x08]
|
|
isoweekday = data[0x09]
|
|
day = data[0x0A]
|
|
month = data[0x0B]
|
|
|
|
tz_info = dt.timezone(dt.timedelta(hours=utcoffset))
|
|
datetime = dt.datetime(year, month, day, hour, minute, 0, 0, tz_info)
|
|
|
|
if datetime.isoweekday() != isoweekday:
|
|
raise ValueError("isoweekday does not match")
|
|
if int(datetime.strftime("%y")) != subyear:
|
|
raise ValueError("subyear does not match")
|
|
|
|
return datetime
|
|
|
|
@staticmethod
|
|
def now() -> dt.datetime:
|
|
"""Return the current date and time with timezone info."""
|
|
tz_info = dt.timezone(dt.timedelta(seconds=-time.timezone))
|
|
return dt.datetime.now(tz_info)
|