Gemini | Python code

def calculate_room_metrics():
    while True:
        try:
            x = float(input("Enter the width of the room in meters (x): "))
            if x <= 0:
                raise ValueError("Width must be a positive number")
            break
        except ValueError as e:
            print("Invalid input:", e)

    while True:
        try:
            y = float(input("Enter the length of the room in meters (y): "))
            if y <= 0:
                raise ValueError("Length must be a positive number")
            break
        except ValueError as e:
            print("Invalid input:", e)

    surface_area = x * y
    print("The surface area of the room is:", surface_area, "square meters")

    add_height = input("Do you want to add room height to calculate volume? (yes/no): ")

    if add_height.lower() == 'yes':
        while True:
            try:
                z = float(input("Enter the height of the room in meters (z): "))
                if z <= 0:
                    raise ValueError("Height must be a positive number")
                break
            except ValueError as e:
                print("Invalid input:", e)

        volume = x * y * z
        print("The volume of the room is:", volume, "cubic meters")

        num_cubes = int(volume / (2 * 2 * 2))
        print("You can fit approximately", num_cubes, "cubes (2m x 2m x 2m) in the room.")
    else:
        print("Skipping volume calculation.")


if __name__ == "__main__":
    calculate_room_metrics()