"""Sample code and test for adafruit_in219"""

import sys
import board
import busio
from adafruit_extended_bus import ExtendedI2C as I2C
from adafruit_ina219 import ADCResolution, BusVoltageRange, INA219

if __name__ == "__main__":
#	    print 'Length: ', len(sys.argv)
    
  if (len(sys.argv)) > 1:
#   print("There are arguments!")
#   if (('a' == sys.argv[1]) or ('afsk' in sys.argv[1])):
    bus = int(sys.argv[1], base=10)
    if (len(sys.argv)) > 2:
      address = int(sys.argv[2], base=16)
    else:
      address = 0x40
  else:
    bus = 1
    address = 0x40

  try:
# Create library object using  Extended Bus I2C port
    i2c_bus = I2C(bus) # 1 Device is /dev/i2c-1
   
    ina219 = INA219(i2c_bus, address)
    
# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
    ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_1S   # 32S
    ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_1S     # 32S
# optional : change voltage range to 16V
    ina219.bus_voltage_range = BusVoltageRange.RANGE_16V

    current = ina219.current  # current in mA
    print("{:9.1f}".format(current))

  except:
    print("0.0 Error")