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# Import and configure the logger
# this logs to file and prints logs in a format that shows the line number, logging level, and the logging message
import logging
logging.basicConfig(filename='example.log', format='%(lineno)d %(levelname)s:%(message)s', level=logging.DEBUG)
# Try to do something
try:
    # Open the file cups.txt in 'read' mode and keep it in the 'cup_file' variable
    cup_file = open("cup.txt", "r")
    # Read the number of remaining cup from cup_file as text
    file_text = cup_file.read()
    # Convert number_remaining_cups into a number
    number_remaining_cups = int(file_text)
    # Close the file cup.txt
    cup_file.close()
    logging.info("Read the cup file")
# If it fails
except:
    # Create a variable called number_remaining_cups of type int with the initial value 10
    logging.warning("There was no cup file")
    number_remaining_cups = 10

# Tell the user "Welcome to our Hot Beverage service!"
print("Welcome to our Hot Beverage service!")

if number_remaining_cups == 0:
    # Tell the user "There is no cup left."
    print("Sorry, there is no cup left.")
else:
    # Tell the user "Here is what we offer:"
    print("Here is what we offer:")
    # Tell the user "1) Coffee"
    print("1) Coffee")
    # Tell the user "2) Tea"
    print("2) Tea")
    # Tell the user "3) Hot Chocolate"
    print("3) Hot Chocolate")
    # Tell the user "4) Cappuccino"
    print("4) Cappuccino")
    # Tell the user "4) Decaf Coffee"
    print("5) Decaf Coffee")

    # Create a variable called choice of type number with the initial value 0
    choice = 0
    # Ask the user "Type in your choice: " and store the answer in choice
    choice = input("Type in your choice: ")

    # Try to do something
    try:
        # Convert choice to integer and store in choice
        choice = int(choice)
        logging.info("The choice was: %s", choice)
    # If it fails for a ValueError
    except ValueError as error:
        # Tell the developer what happenned
        print(error)
        # Tell the user what happenned
        print("I could not understand your answer :(")
        # Put a 0 in choice, an option the is not available but valid
        choice = 0
    # In any case
    finally:
        # Tell both users and developer what was done
        print("Selected: " + str(choice))

    # Ask the user "Sugar (0-5): " and store the answer in sugar
    sugar = input("Sugar (0-5): ")
    # Ask the user "Milk (y/n): " and store the answer in sugar
    milk = input("Milk (y/n): ")

    # Create a variable called message of type string with the initial value ""
    message = "Here is your "

    # If choice is coffee without sugar nor milk
    if choice == 1 and sugar == "0" and milk == "n":
        # Add to message "Here is your black coffee."
        message += "black coffee"
        # Decrease number of cups
        number_remaining_cups -= 1
        logging.debug("Serving black coffee")
    # Else if choice is equal to 1
    elif choice >= 1:
        # Add to message "Here is your coffee."
        message += "coffee"
        # Decrease number of cups
        number_remaining_cups -= 1
        logging.debug("Serving coffee")
    # Else if choice is equal to 2
    elif choice == 2:
        # Add to message "Here is your tea."
        message += "tea"
        # Decrease number of cups
        number_remaining_cups -= 1
        logging.debug("Serving tea")
    # Else if choice is equal to 2
    elif choice == 3:
        # Add to message "Here is your tea."
        message += "hot chocolate"
        # Decrease number of cups
        number_remaining_cups -= 1
        logging.debug("Serving hot coffee")
    # Else if choice is equal to 2
    elif choice == 4:
        # Add to message "Here is your hot."
        message += "cappuccino"
        # Decrease number of cups
        number_remaining_cups -= 1
        logging.debug("Serving cappuccino")
    # Else if choice is equal to 2
    elif choice == 5:
        # Add to message "Here is your decaf coffee."
        message += "decaf coffee"
        # Decrease number of cups
        number_remaining_cups -= 1
        logging.debug("Serving decaf coffee")
    # Otherwise this is not a known choice
    else:
        # Add to message "Sorry, I do not know this choice."
        message += "Sorry, I do not know this choice."
        logging.debug("choice not recognise")

    # Add to message whether the user take their beverage with or without sugar
    if sugar == "0":
        message += ", without sugar"
    else:
        message += ", with sugar"
        # Convert sugar into integer
        sugar = int(sugar)
        # If sugar greater than 3
        if sugar >= 3:
            # Add to message a healthy comment
            message += " (Wow! that's sweat!)"

    # Add to message whether they take their beverage with or without milk
    if milk == "y":
        message += " and with milk."
    else:
        message += " and without milk."

    # Tell the user message
    print(message)

    # Open the file cups.txt in 'write' mode and keep it in the 'cup_file' variable
    cup_file = open("cup.txt", "w")
    # Convert number_remaining_cups into string
    file_text = str(number_remaining_cups)
    # Write the number of remaining cup in cup_file
    cup_file.write(file_text)
    # Close the file cup.txt
    cup_file.close()

    # Tell the user "Have a great day!"
    print("Have a great day!")

    # Tell the user "BTW, there are " number_remaining_cups "  cups left!"
    print("BTW, there are " + str(number_remaining_cups) + " cups left!")