'''
Purpose: introduce decision making
'''

# determine chrysanthemum color given an input soil pH level
#       acidic soil produces pink chrysanthemums
#   non-acidic soil produces blue chrysanthemums

# acidity threshold

ACIDIC_THRESHOLD = 7.0     # samples less than threshold are acidic

# get soil pH level of interst
reply = input( 'Enter soil pH level: ' )

pH = float( reply )

print( )

# analyze and report effect on chrysanthemums
#   if acidic print 'pink';  otherwise print 'blue'
if ( pH < ACIDIC_THRESHOLD ) : # python will evaluate this expression and enter the correct path according to the answer
    # if pH < ACIDIC_THRESHOLD evaluates to True, we enter this path because the flowers will be pink

    print( "pink" ) # soil is acidic -> produces pink mums

else : # if pH < ACIDIC_THRESHOLD evaluates to False, we enter this path

    print( "blue" ) # soil is non-acidic -> produces blue mums

# if statements:
    # if ( condition ) :
    #   action_1
    # else :
        #action_2
    # the else is optional
    # action_1 and action_2 can contain if statements, loops, whatever you want
    # condition
    #   comparisons are going to mostly be inside the parentheses at the definition of the if statement
    #   condition will evaluate to a boolean true or false
    # we will extend the if statement longer using the elif ( else if (condition_2) ) keyword later


# all done

# discussion on 0
    # some programming languages have positive and negative representations of 0, and you can learn more about
    # why that is in CS 2150/ whatever they're replacing it with