JB_coffee_machine.py

# Start with machine status
# At the moment, the coffee machine has $550, 400 ml of water, 540 ml of milk, 120 g of coffee beans, and 9 disposable cups.

water_left = 400
milk_left = 540
coffee_left = 120
cups_left = 9
money_left = 550


def remaining():
    print(f"""
    The coffee machine has:
    {water_left} of water
    {milk_left} of milk
    {coffee_left} of coffee beans
    {cups_left} of disposable cups
    ${money_left} of money
    """)

# for buy
# For one espresso, the coffee machine needs 250 ml of water and 16 g of coffee beans. It costs $4.
# For a latte, the coffee machine needs 350 ml of water, 75 ml of milk, and 20 g of coffee beans. It costs $7.
# And for a cappuccino, the coffee machine needs 200 ml of water, 100 ml of milk, and 12 g of coffee. It costs $6


def buy(choice):
    global water_left, milk_left, coffee_left, cups_left, money_left

    if choice == "1":
        if water_left < 250:
            print("Sorry, not enough water!")
        if coffee_left < 16:
            print("Sorry, not enough coffee beans!")
        if cups_left < 1:
            print("Sorry, not enough disposable cups!")
        if (water_left >= 250) and (coffee_left >= 16) and (cups_left >= 1):
            print("I have enough resources, making you a coffee!") 
            water_left -= 250
            coffee_left -= 16
            money_left += 4
            cups_left -= 1
    elif choice == "2":
        if water_left < 350:
            print("Sorry, not enough water!")
        if coffee_left < 20:
            print("Sorry, not enough coffee beans!")
        if milk_left < 75:
            print("Sorry, not enough milk!")
        if cups_left < 1:
            print("Sorry, not enough disposable cups!")
        if (water_left >= 350) and (coffee_left >= 20) and (cups_left >= 1) and (milk_left >= 75):
            print("I have enough resources, making you a coffee!")
            water_left -= 350
            milk_left -= 75
            coffee_left -= 20
            money_left += 7
            cups_left -= 1

    elif choice == "3":
        if water_left < 200:
            print("Sorry, not enough water!")
        if coffee_left < 12:
            print("Sorry, not enough coffee beans!")
        if milk_left < 100:
            print("Sorry, not enough milk!")
        if cups_left < 1:
            print("Sorry, not enough disposable cups!")
        if (water_left >= 200) and (coffee_left >= 12) and (cups_left >= 1) and (milk_left >= 100):
            print("I have enough resources, making you a coffee!")
        water_left -= 200
        milk_left -= 100
        coffee_left -= 12
        money_left += 6
        cups_left -= 1

# Type back to return to main menu 
    elif choice == "back":
        action

# for fill
# ask them how much water, milk, coffee and how many disposable cups they want to add into the coffee machine.
def fill():
    global water_left, milk_left, coffee_left, cups_left, money_left
    water_left += int(input("Write how many ml of water do you want to add:"))
    
    milk_left += int(input("Write how many ml of milk do you want to add:"))

    coffee_left += int(input("Write how many grams of coffee beans do you want to add:"))

    cups_left += int(input("Write how many disposable cups of coffee do you want to add:"))

# for take 
# give all the money that it earned from selling coffee.
def take():
    global money_left
    print(f"I gave you {money_left}.")
    money_left = 0


while True:
    # read input "buy", "fill", "take"
    action = input("\nWrite action (buy, fill, take, remaining, exit):")
    # Buying using the buy function Example 1
    if action == "buy":
        choice = input("What do you want to buy? 1 - espresso, 2 - latte, 3 - cappuccino:")
        buy(choice)
    # Fill using the fill function Example 2
    elif action == "fill":
        fill()
    # Take using the take function Example 3
    elif action == "take":
        take()
    elif action == "remaining":
        remaining()
    elif action == "exit":
        break