sanitizer

#!/usr/bin/env python3
# http://who.int/gpsc/5may/Guide_to_Local_Production.pdf

from sys import argv, exit

if len(argv) == 1:
    print(
        '''\
{} bottle_volume want_alcohol% have_alcohol% have_peroxide% have_glycerol%
Example: {} 250 60 99.7 3 86\
'''.format(
            argv[0], argv[0]
        )
    )
    exit()

bottle_volume = float(argv[1])
want_alcohol_percent = float(argv[2])
have_alcohol_percent = float(argv[3])
have_peroxide_percent = float(argv[4])
have_glycerol_percent = float(argv[5])

alcohol = bottle_volume * (want_alcohol_percent / have_alcohol_percent)
glycerol = bottle_volume * (1.45 / have_glycerol_percent)
peroxide = bottle_volume * (0.125 / have_peroxide_percent)
water = bottle_volume - alcohol - peroxide - glycerol

print(
    '''\
             %    ml 
Bottle         {3:5}
Alcohol  {0:5} {4:5}
Peroxide {1:5} {5:5}
Glycerol {2:5} {6:5}
Water          {7:5}\
'''.format(
        have_alcohol_percent,
        have_peroxide_percent,
        have_glycerol_percent,
        round(bottle_volume),
        round(alcohol),
        round(peroxide),
        round(glycerol),
        round(water),
    )
)