import random


# Check that users have entered a valid option based on a list
def string_checker(question, valid_ans):

    error = f"Please enter a valid answer 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 item == user_response:
                return item

            # check if the user response is the same as
            # the first letter of an item on 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 instructions():
    print('''

***Instructions***

To begin, choose the number of questions you would like to answer. You can play between 1 and 15.

Then, answer the multiplication questions. Don't worry if you're not sure about an answer.
Just give it a go!

At the end of the game, your game statistics will be shown and you will have the option to see your history
incase you would like to review your incorrect answers.

Good Luck!
    ''')


# checks for an integer between the high and low
def int_check(question, low, high):

    while True:
        error = f"💡 Hint 💡 Please enter an integer more than {low} and below {high}"

        to_check = input(question)

        try:
            response = int(to_check)

            # checks that the number is equal or between
            if low <= response <= high:
                return response
            else:
                print(error)

        except ValueError:
            print(error)


# Main routine starts here

# Initialise game variables
questions_answered = 0
answers_correct = 0
answers_incorrect = 0

yes_no = ["yes", "no"]

game_history = []

# Display game title and welcome user
print("🤓✏️❔ Multiplication Game 🤓✏️❔")
print()
print("Welcome to this multiplication game!")
print()

# ask the user if they want instructions and display them if requested
want_instructions = string_checker("Would you like to see the instructions? ", yes_no)

# checks users enter yes (y) or no (n)
if want_instructions == "yes":
    instructions()

# Ask user for the number of questions
num_questions = int_check("How many questions would you like? Please choose between 1 and 15: ", 1, 15)

# Game loop starts here
while questions_answered < num_questions:

    # Choose two random numbers between 1 and 12
    number_1 = random.randint(1, 12)
    number_2 = random.randint(1, 12)

    # Generate and display question heading
    questions_heading = f"\n⏱️⏱️⏱️ Question {questions_answered + 1} of {num_questions} ⏱️⏱️⏱️"

    print(questions_heading)

    # Ask user a multiplication question and accept answers between 1 and 200
    user_answer = int_check(f"Question: {number_1} x {number_2} = ", 1, 200)
    print("You answered: ", user_answer)

    # Find the correct answer
    correct_answer = number_1 * number_2

    # Check if user answer is correct/incorrect, adjust correct/incorrect counters, and generate user feedback
    if user_answer == correct_answer:
        answers_correct += 1
        feedback = "Well done! That answer was correct ✅"
    else:
        answers_incorrect += 1
        feedback = f"Unlucky, that was incorrect ❌. The correct answer is: {correct_answer}"

    # Output feedback, and add question and feedback to the game history list (include the question number)
    history_item = f"Question: {questions_answered +1} - {number_1} x {number_2} = {user_answer}, {feedback}"

    print(feedback)
    game_history.append(history_item)

    # Adjust questions answered
    questions_answered += 1

# Game History / Statistics area

if questions_answered > 0:
    # Calculate Statistics
    answers_correct = questions_answered - answers_incorrect
    percent_correct = answers_correct / questions_answered * 100
    percent_incorrect = answers_incorrect / questions_answered * 100

    # Output Game Statistics
    print()
    print("📊📊📊 Game Statistics 📊📊📊")
    print(f"✅ Correct: {percent_correct:.2f} \t "
          f"❌ Incorrect: {percent_incorrect:.2f} \t")

    # Ask user if they want to see their game history and output it if requested
    see_history = string_checker("\nDo you want to see your game history? ", yes_no)
    if see_history == "yes":
        for item in game_history:
            print(item)

    # Game ends
    print()
    print("Thank you for playing!")