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import constants
import readdata
from sys import stdout
from datetime import timedelta
from time import sleep
from optparse import OptionParser
G5_IS_DEFAULT = True
DEFAULT_PAGE_COUNT = 2
parser = OptionParser()
parser.add_option("--g4", action="store_false", dest="g5", default=G5_IS_DEFAULT, help="use Dexcom G4 instead of Dexcom G5")
parser.add_option("--g5", action="store_true", dest="g5", default=G5_IS_DEFAULT, help="use Dexcom G5 instead of Dexcom G4")
parser.add_option("-a", "--all", action="store_const", dest="command", const="dump_everything", help="dump all available records")
parser.add_option("-p", "--poll", action="store_const", dest="command", const="poll", help="poll for latest CGM record")
parser.add_option("-n", type="int", dest="num_records", default=DEFAULT_PAGE_COUNT, help="number of pages of CGM records to display")
(options, args) = parser.parse_args()
command = options.command or "dump_cgm"
def get_dexcom_reader():
if options.g5:
dd = readdata.DexcomG5.FindDevice()
return readdata.DexcomG5(dd)
else:
dd = readdata.Dexcom.FindDevice()
return readdata.Dexcom(dd)
dr = get_dexcom_reader()
def dump_everything():
# record_types = ['METER_DATA', 'INSERTION_TIME', 'USER_EVENT_DATA', 'CAL_SET', 'SENSOR_DATA']
unparseable = ['FIRMWARE_PARAMETER_DATA', 'RECEIVER_LOG_DATA', 'USER_SETTING_DATA', 'MAX_VALUE']
parsed_to_xml = ['MANUFACTURING_DATA', 'PC_SOFTWARE_PARAMETER']
skip = unparseable + parsed_to_xml
record_types = filter(lambda v: not v in skip, constants.RECORD_TYPES)
for t in record_types:
print t + ":"
for r in dr.ReadRecords(t):
print r
def dump_cgm():
cgm_records = dr.ReadRecords('EGV_DATA', options.num_records)
for cr in cgm_records:
if not cr.display_only:
print cr
def recent(t):
now = dr.ReadSystemTime()
return t.system_time > now - timedelta(minutes=5)
def read_recent_egv_data():
try:
r = dr.ReadRecords('EGV_DATA', options.num_records)[-1]
if recent(r) and not r.is_special and not r.display_only:
return r
else:
return None
except:
return None
def format_times(now, stamp):
diff = (stamp - now).total_seconds()
operand = '-' if diff < 0 else '+' # should always be -
return '%s %s %d' % (now.strftime('%s'), operand, abs(diff))
def poll():
while True:
r = read_recent_egv_data()
if r is None:
sleep(10)
else:
now = dr.ReadSystemTime()
print '%s: %s %s' % (format_times(now, r.system_time), r.glucose, r.trend_arrow)
stdout.flush()
next_reading = (r.system_time - now + timedelta(minutes=5, seconds=2)).total_seconds()
if (next_reading > 0):
sleep(next_reading)
{"dump_everything": dump_everything,
"dump_cgm": dump_cgm,
"poll": poll
}[command]()
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