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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""Utility to manage glucometers' data."""
__author__ = 'Diego Elio Pettenò'
__email__ = 'flameeyes@flameeyes.eu'
__copyright__ = 'Copyright © 2013-2017, Diego Elio Pettenò'
__license__ = 'MIT'
import argparse
import importlib
import inspect
import logging
import sys
from glucometerutils import common
from glucometerutils import exceptions
def main():
if sys.version_info < (3, 2):
raise Exception(
'Unsupported Python version, please use at least Python 3.2')
parser = argparse.ArgumentParser()
subparsers = parser.add_subparsers(dest="action")
parser.add_argument(
'--driver', action='store', required=True,
help='Select the driver to use for connecting to the glucometer.')
parser.add_argument(
'--device', action='store', required=False,
help=('Select the path to the glucometer device. Some devices require this '
'argument, others will try autodetection.'))
parser.add_argument(
'--vlog', action='store', required=False, type=int,
help=('Python logging level. See the levels at '
'https://docs.python.org/3/library/logging.html#logging-levels'))
subparsers.add_parser(
'help', help=('Display a description of the driver, including supported '
'features and known quirks.'))
subparsers.add_parser(
'info', help='Display information about the meter.')
subparsers.add_parser(
'zero', help='Zero out the data log of the meter.')
parser_dump = subparsers.add_parser(
'dump', help='Dump the readings stored in the device.')
parser_dump.add_argument(
'--unit', action='store', choices=common.VALID_UNITS,
help='Select the unit to use for the dumped data.')
parser_dump.add_argument(
'--sort-by', action='store', default='timestamp',
choices=common.Reading._fields,
help='Field to order the dumped data by.')
parser_date = subparsers.add_parser(
'datetime', help='Reads or sets the date and time of the glucometer.')
parser_date.add_argument(
'--set', action='store', nargs='?', const='now', default=None,
help='Set the date rather than just reading it from the device.')
args = parser.parse_args()
logging.basicConfig(level=args.vlog)
try:
driver = importlib.import_module('glucometerutils.drivers.' + args.driver)
except ImportError as e:
logging.error(
'Error importing driver "%s", please check your --driver parameter:\n%s',
args.driver, e)
return 1
# This check needs to happen before we try to initialize the device, as the
# help action does not require a --device at all.
if args.action == 'help':
print(inspect.getdoc(driver))
return 0
device = driver.Device(args.device)
device.connect()
device_info = device.get_meter_info()
try:
if args.action == 'info':
try:
time_str = device.get_datetime()
except NotImplementedError:
time_str = 'N/A'
print("{device_info}Time: {time}".format(
device_info=str(device_info), time=time_str))
elif args.action == 'dump':
unit = args.unit
if unit is None:
unit = device_info.native_unit
readings = device.get_readings()
if args.sort_by is not None:
readings = sorted(
readings, key=lambda reading: getattr(reading, args.sort_by))
for reading in readings:
print(reading.as_csv(unit))
elif args.action == 'datetime':
if args.set == 'now':
print(device.set_datetime())
elif args.set:
try:
from dateutil import parser as date_parser
new_date = date_parser.parse(args.set)
except ImportError:
logging.error(
'Unable to import module "dateutil", please install it.')
return 1
except ValueError:
logging.error('%s: not a valid date', args.set)
return 1
print(device.set_datetime(new_date))
else:
print(device.get_datetime())
elif args.action == 'zero':
confirm = input('Delete the device data log? (y/N) ')
if confirm.lower() in ['y', 'ye', 'yes']:
device.zero_log()
print('\nDevice data log zeroed.')
else:
print('\nDevice data log not zeroed.')
return 1
else:
return 1
except exceptions.Error as err:
print('Error while executing \'%s\': %s' % (args.action, str(err)))
return 1
device.disconnect()
if __name__ == "__main__":
main()
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