# -*- coding: utf-8 -*-
"""Driver for Accu-Chek Mobile devices with reports mode.
Supported features:
- get readings, including comments;
- use the glucose unit preset on the device by default;
- get serial number.
Expected device path: /mnt/ACCUCHEK, the mountpoint of the block device.
The Accu-Chek Mobile meters should be set to "Reports" mode.
"""
__author__ = 'Diego Elio Pettenò'
__email__ = 'flameeyes@flameeyes.eu'
__copyright__ = 'Copyright © 2016, Diego Elio Pettenò'
__license__ = 'MIT'
import csv
import datetime
import glob
import os
from glucometerutils import common
from glucometerutils import exceptions
_UNIT_MAP = {
'mmol/l': common.Unit.MMOL_L,
'mg/dl': common.Unit.MG_DL,
}
_DATE_CSV_KEY = 'Date'
_TIME_CSV_KEY = 'Time'
_RESULT_CSV_KEY = 'Result'
_UNIT_CSV_KEY = 'Unit'
_TEMPWARNING_CSV_KEY = 'Temperature warning' # ignored
_OUTRANGE_CSV_KEY = 'Out of target range' # ignored
_OTHER_CSV_KEY = 'Other' # ignored
_BEFORE_MEAL_CSV_KEY = 'Before meal'
_AFTER_MEAL_CSV_KEY = 'After meal'
# Control test has extra whitespace which is not ignored.
_CONTROL_CSV_KEY = 'Control test' + ' '*197
_DATE_FORMAT = '%d.%m.%Y'
_TIME_FORMAT = '%H:%M'
_DATETIME_FORMAT = ' '.join((_DATE_FORMAT, _TIME_FORMAT))
class Device:
def __init__(self, device):
if not device or not os.path.isdir(device):
raise exceptions.CommandLineError(
'--device parameter is required, should point to mount path '
'for the meter.')
reports_path = os.path.join(device, '*', 'Reports', '*.csv')
report_files = glob.glob(reports_path)
if not report_files:
raise exceptions.ConnectionFailed(
'No report file found in path "%s".' % reports_path)
self.report_file = report_files[0]
def _get_records_reader(self):
self.report.seek(0)
# Skip the first two lines
next(self.report)
next(self.report)
return csv.DictReader(
self.report,
delimiter=';',
skipinitialspace=True,
quoting=csv.QUOTE_NONE)
def connect(self):
self.report = open(
self.report_file, 'r', newline='\r\n', encoding='utf-8')
def disconnect(self):
self.report.close()
def get_meter_info(self):
return common.MeterInfo(
'%s glucometer' % self.get_model(),
serial_number=self.get_serial_number(),
native_unit=self.get_glucose_unit())
def get_model(self):
# $device/MODEL/Reports/*.csv
return os.path.basename(
os.path.dirname(os.path.dirname(self.report_file)))
def get_serial_number(self):
self.report.seek(0)
# ignore the first line.
next(self.report)
# The second line of the CSV is serial-no;report-date;report-time;;;;;;;
return next(self.report).split(';')[0]
def get_glucose_unit(self):
# Get the first record available and parse that.
record = next(self._get_records_reader())
return _UNIT_MAP[record[_UNIT_CSV_KEY]]
def get_datetime(self):
raise NotImplementedError
def set_datetime(self, date=None):
raise NotImplementedError
def zero_log(self):
raise NotImplementedError
def _extract_datetime(self, record): # pylint: disable=no-self-use
# Date and time are in separate column, but we want to parse them
# together.
date_and_time = ' '.join((record[_DATE_CSV_KEY], record[_TIME_CSV_KEY]))
return datetime.datetime.strptime(date_and_time, _DATETIME_FORMAT)
def _extract_meal(self, record): # pylint: disable=no-self-use
if record[_AFTER_MEAL_CSV_KEY] and record[_BEFORE_MEAL_CSV_KEY]:
raise exceptions.InvalidResponse(
'Reading cannot be before and after meal.')
elif record[_AFTER_MEAL_CSV_KEY]:
return common.Meal.AFTER
elif record[_BEFORE_MEAL_CSV_KEY]:
return common.Meal.BEFORE
else:
return common.Meal.NONE
def get_readings(self):
for record in self._get_records_reader():
if record[_RESULT_CSV_KEY] is None:
continue
yield common.GlucoseReading(
self._extract_datetime(record),
common.convert_glucose_unit(
float(record[_RESULT_CSV_KEY]),
_UNIT_MAP[record[_UNIT_CSV_KEY]],
common.Unit.MG_DL),
meal=self._extract_meal(record))
