import random

# checks for an integer more than 0 (allows <enter>)

def int_check(question, low_number, high_number):
    #Checks users enter an integer more than 1

    while True:
        error = f"Please enter a number between {low_number} and {high_number}!"

        try:
            response = int(input(question))

            #checks that the number is between the low_number and high_number variables
            if response is low_number <= response <= high_number:
                print(error)
            else:
                return response

        except ValueError:
            print(error)


# Check that users have entered a valid
# option based on a list
def string_checker(question, valid_ans):
    error = f"Please enter a valid option from the following list: {valid_ans}"

    while True:

        # Get user response and make sure it's lowercase
        user_response = input(question).lower()

        for item in valid_ans:
            # check if the user response is a word in the list
            if user_response == item:
                return item

            # check if the user response is the same as
            # the first letter of an item in the list
            elif user_response == item[0]:
                return item

        # print error if user does not enter something that is valid
        print(error)
        print()


# Displays instructions
def instruction():
    print('''

**** Instructions ****

To begin, choose the number of rounds

Then, you'll need to answer the multiplication questions
in the quiz correctly

Press <xxx> to end the game at anytime.

Good Luck!
    ''')


# Variables
yes_no = ["yes", "no"]



# Main Routine Starts here
print("Multiplication quiz")

view_instructions = string_checker("Do you want to see the instructions? ", yes_no)

if view_instructions == "yes":
    instruction()


rounds_num = int_check("How many questions would you like to answer?  ",2,15)
# Game loop starts here
for i in range(rounds_num):
    #A pool of the numbers which the program will generate
    number1 = random.randint(2, 15)
    number2 = random.randint(2, 15)

    answer = number1 * number2

    user_answer = int_check(input(f"{number1} x {number2} = "))



    if user_answer == answer:
        print("✅✅✅Correct✅✅✅")
    elif user_answer != answer:
        print(f"❌❌❌Incorrect, the answer was {answer}!❌❌❌")
        #Starts counting how many questions were answered incorrectly for the users score
        rounds_losses +=1
    else:
        print("Please enter an appropriate answer.")


#Statistics Area / Game History

#Calculates how much of the quiz was answered correctly and how much was answered incorrectly
questions_correct = rounds_num - rounds_losses
percent_won = questions_correct / rounds_num * 100
percent_lost = rounds_losses / rounds_num * 100

#The program shows the user their score
print("Game Stats")
print(f"You answered {questions_correct} question(s) correctly.")
print(f"You got {percent_won:.2f}% correct!")
print(f"You got {percent_lost:.2f}% incorrect!")