# lecture, 24.11.2022
print("Welcome! Note: print() is also a function!")

# FUNCTIONS FILE - functions.py

# functions.py, like a TOOLBOX
# functions do nothing in code
# before they are used

# simple text printing function
def show_text():
    print("Welcome to application!")
    print("-----------------------")
    print("Please follow instructions.")
    print()


# text printing function, takes 3 parameters
def combine_text(first, last, age):
    print(f"Welcome, {first} {last}")
    print(f"You are {age} years old.")


# function that returns a number
def get_year():
    result = 2022
    return result


# function that determines if number
# is odd or even
def get_even_number_text(number):
    if number % 2 == 0:
        return "Even."
    else:
        return "Odd."

# helper function: how many days
# are in certain amount of hours
def hours_to_days(hours):
    result = hours // 24
    return result


# helper function, reverses string
def reverse_string(text):
    return text[::-1]


# function that checks if given text
# is a palindrome
def check_palindrome(text):
    reversed_text = reverse_string(text)

    # see if texts match
    if text == reversed_text:
        return True
    else:
        return False

# function that checks if order code
# is in correct format: 10 characters long
# 1st character has to be "T"
def check_order(code):
    okay = True

    # if code is not 10 characters long => False
    if len(code) != 10:
        okay = False

    # if 1st letter not T => False
    if code[0] != "T":
        okay = False

# helper function that prints
# contents of a list
def show_list(data):

    # print the contents
    for word in data:
        print(word)


# helper function, calculates average from any list
def get_list_average(numbers):
    total = sum(numbers)
    amount = len(numbers)

    result = total / amount
    result = round(result, 2)

    return result

# OTHER CODE FILES

from functions import *

show_text()

# NEW FILE

from functions import *

combine_text("Test", "Person", 31)

# NEW FILE

from functions import *

year = get_year()
print(year)

# NEW FILE

from functions import *

value = input("Give a number:\n")
value = int(value)

# call our own function with the value
text = get_even_number_text(value)
print(text)

# NEW FILE

from functions import *

text = input("Give a word:\n")

result = reverse_string(text)
print(result)

# NEW FILE

from functions import *

days = hours_to_days(9746)
print(f"{days} in total.")

# NEW FILE

from functions import *

text = input("Give text:\n")

result = check_palindrome(text)

# check result
if result:
    print("Palindrome!")
else:
    print("Not a palindrome.")

# NEW FILE

from functions import *

test = "F1567-9676"

result = check_order(test)
print(result)

# NEW FILE

from functions import *

cities = ["Rovaniemi", "Madrid", "London", "Stockholm"]

show_list(cities)

# NEW FILE

from functions import *

numbers = [8, 7, 4, 5, 6, 9, 3, 4, 6]
grades = [5, 3, 4, 2, 1, 5, 5, 4, 3, 4]
temperatures = [-4, -5, -12, -7, -6, -11, -5]

average_number = get_list_average(numbers)
print(average_number)

average_grade = get_list_average(grades)
print(average_grade)

average_temperature = get_list_average(temperatures)
print(average_temperature)