'''
    DS2000
    Spring 2020
    Source code from class - building on the user interface example from Tues.

    V3 -- compute the average of audience ratings (floats 1-5)

    January 31, 2020
'''



AUDIENCE = "A"
CRITIC = "C"
QUIT = "Q"


def choose_menu(movie):
    ''' Function: choose_menu
        Parameters: none
        Returns: A letter, a validated choice from the menu
    '''
    print("Welcome to Rotten Huskies for the movie", movie, "\n"
          "Choose from the following options...\n"
          "\t", AUDIENCE, "-- Audience rating\n"
          "\t", CRITIC, "-- Critics consensus\n"
          "\t", QUIT, "-- Quit")
    choice = input("Enter your choice now\n")
    while choice != AUDIENCE and choice != CRITIC and choice != QUIT:
        choice = input("Invalid, try again\n")

    return choice

def audience_rating(ratings):
    ''' Function: audience_rating
        Parameters: list of floats (audience ratings)
        Returns: average audience rating (float 1-5)
        Does: Computes the audience rating from a list of numerical ratings
    '''
    length = len(ratings)
    total = 0
    for i in range(length):
        total = total + ratings[i]
    return total / length

def critic_rating():
    ''' Function: critic_ratings
        Parameters: nothing yet
        Returns: average critics rating 
        Does: Estimates a positive/negative score from a list of
              narrative critiques from a bunch of critics
    '''
    return 0