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import argparse
from abc import ABCMeta, abstractmethod
import dateutil.relativedelta
from quarg.quassel.types import BufferType, MessageFlag, MessageType
from quarg.utils import errx, parse_isodate
# TODO Find out what to do about passing INVALID or GROUP as BufferType
# TODO Find out what to do about passing various message flags
# pylint: disable=too-few-public-methods, unsupported-membership-test
class ParseEnum(argparse.Action, metaclass=ABCMeta):
def __call__(self, parser, namespace, value, option_string=None):
key = value.upper()
if key not in self.enumclass.__members__:
errx(f'Not a valid {self.enumclass.describe()}: {value}')
saved = getattr(namespace, self.dest) or []
saved.append(self.enumclass[key])
setattr(namespace, self.dest, saved)
@property
@abstractmethod
def enumclass(self):
pass
class ParseMessageType(ParseEnum):
@property
def enumclass(self):
return MessageType
class ParseMessageFlag(ParseEnum):
@property
def enumclass(self):
return MessageFlag
class ParseBufferType(ParseEnum):
@property
def enumclass(self):
return BufferType
class ParseDate(argparse.Action):
def __call__(self, parser, namespace, datespec, option_string=None):
setattr(namespace, self.dest, parse_isodate(datespec))
class ParseAround(argparse.Action):
def __call__(self, parser, namespace, aroundspec, option_string=None):
if '/' in aroundspec:
# FIXME / fine here?
datespec, rangespec = aroundspec.split('/', 1)
try:
hour_range = int(rangespec)
except ValueError as err:
errx(err)
else:
datespec, hour_range = (aroundspec, 12)
date = parse_isodate(datespec)
offset = dateutil.relativedelta.relativedelta(hours=hour_range)
setattr(namespace, self.dest, (date - offset, date + offset))
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