''' Purpose: reinforce loop mechanics
'''

# get some sequences
color = input( 'Enter your favorite color: ' )

reply =  input( 'Enter some names: ' )
names = reply.split()

numbers = [ 12, 7, -11, -12, 59 ]

print()

print( 'color =', color )
print( 'names =', names )
print( 'numbers =', numbers )

print()

input( "Enter when ready: " )

# one-by-one go through the characters in color
for ch in color: #loop is going to look at the characters in the string color one-by-one
    # ch is assigned another character from color automatically by Python.
    #print( "ch:", ch )
    up_ch = ch.upper() #using the loop variable to get the thing that I want
    print( up_ch ) # print the result

print()

input( "Enter when ready: " )

# one-by-one go through the names in names
for name in names: # loop is go to process each name in names one at a time
    # each time in the loop name is set to another name in names
    #print( "name: ", name ) # print out the current loop variable
    cap_name = name.capitalize() # get a proper capitalization of name and put it in cap_name
    print( cap_name )

print()

input( "Enter when ready: " )

# one-by-one go through the numbers in numbers
for nbr in numbers: # loop through the numbers in numbers one at a time
    # nbr will be automatically set to the next number in numbers
    #print( "nbr: ", nbr )
    comp_nbr = -nbr
    print( comp_nbr )

input( "Enter when ready: " )

# let's build a new string out of the color where the characters are separated
# by blanks

spaced_out_color = "" # when building a string your accumulator variable starts off as ""
for ch in color: # need to consider the characters in color one at a time
    # ch is another character from color
    spaced_out_color = spaced_out_color + ch + " "
    # the new spaced out color is the old spaced out color plus the current character
    # plus a space.
    print( "spaced_out_color:", spaced_out_color )

print( spaced_out_color )

input( "Enter when ready: " )

# let's build a list of the number of characters in each one of the names

name_lengths = [] #  when building a list we are going to have an empty list as the
                  #  initial value for the accumulator

for name in names : # consider each name in names
    # need to determine the length of the current name.
    print( "name:", name )
    n = len( name )         # get the length of the current name
    print( "n:", n )
    # add n to the list name_lengths
    name_lengths.append( n )  # adds n to the end of name_lengths
    print( "name_lengths:", name_lengths )

print( names )
print( name_lengths )

input( "Enter when ready: " )

# let's find the longest name length
longest_name_length = max( name_lengths )

print( 'longest name length =', longest_name_length )

input( "Enter when ready: " )

i = name_lengths.index( longest_name_length) # want to determine the position of
                                             # longest name length in name_lengths.
                                             # that is the position is the position
                                             # of the longest name in names

print( "i:", i )

longest_name = names[ i ]

print( "longest_name:", longest_name )

# let's find the name that occurs first alphabetically
first_alphabetically = min( names )  # find name that occurs first alphabetically

print( 'first alphabetically: ', first_alphabetically )