# Functions go here
def make_statement(statement, decoration):
    """Emphasises headings by adding decoration
    at the start and end"""

    print(f"{decoration * 3} {statement} {decoration * 3}")


def string_check(question, valid_answers=('yes', 'no'),
                 num_letters=1):
    """Checks that users enter the full word
    or the first letter of a word from a list of valid responses"""

    while True:

        response = input(question).lower()

        for item in valid_answers:

            # check if the response is the entire world
            if response == item:
                return item

            # check if it's the first letter
            elif response == item[:num_letters]:
                return item

        print(f"Please choose an option from {valid_answers}")


def instructions():
    make_statement("Instructions", "ℹ️")

    print('''
    
This program will ask you for...
    - The name of the product you are selling
    - How many items you plan on selling
    - The costs for each component of the product (variable expenses)
    - Whether or not you have fixed expenses (if you have
    fixed expenses, it will ask you what they are)
    - How much money you want to make (ie: your profit goal)
    
It will also ask you how much the recommended sales price should be rounded to.
    ''')


# Main Routine goes here

make_statement("Mini-Movie Fundraiser Program", "🍿")

print()
want_instructions = string_check("Do you want to read the instructions? ")

if want_instructions == "yes":
    instructions()

print()
print("program continues...")