Files
discord-reminder-bot/discord_reminder_bot/parser.py

55 lines
1.7 KiB
Python

from __future__ import annotations
import datetime
from zoneinfo import ZoneInfo, ZoneInfoNotFoundError
import dateparser
from loguru import logger
from discord_reminder_bot.settings import get_timezone
def parse_time(date_to_parse: str | None, timezone: str | None = None, use_dotenv: bool = True) -> datetime.datetime | None: # noqa: FBT001, FBT002
"""Parse a date string into a datetime object.
Args:
date_to_parse(str): The date string to parse.
timezone(str, optional): The timezone to use. Defaults timezone from settings.
use_dotenv(bool, optional): Whether to load environment variables from a .env file. Defaults to True
Returns:
datetime.datetime: The parsed datetime object.
"""
logger.info(f"Parsing date: '{date_to_parse}' with timezone: '{timezone}'")
if not date_to_parse:
logger.error("No date provided to parse.")
return None
if not timezone:
timezone = get_timezone(use_dotenv)
# Check if the timezone is valid
try:
tz = ZoneInfo(timezone)
except (ZoneInfoNotFoundError, ModuleNotFoundError):
logger.error(f"Invalid timezone provided: '{timezone}'. Using {get_timezone(use_dotenv)} instead.")
tz = ZoneInfo("UTC")
try:
parsed_date: datetime.datetime | None = dateparser.parse(
date_string=date_to_parse,
settings={
"PREFER_DATES_FROM": "future",
"TIMEZONE": f"{timezone}",
"RETURN_AS_TIMEZONE_AWARE": True,
"RELATIVE_BASE": datetime.datetime.now(tz=tz),
},
)
except (ValueError, TypeError):
return None
logger.debug(f"Parsed date: {parsed_date} from '{date_to_parse}'")
return parsed_date