import random
# V3 Added a maximum number for the amount of questions and answering the question
# V4 Added a level of difficulty, updated the int_check function to use min & max range

# Check that users have entered a valid
# option based on a list


def string_checker(question, valid_ans):
    while True:

        error = f"Enter a valid option from {valid_ans}"

        user_response = input(question).lower()

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

            elif user_response == item[0]:
                return item

        print(error)
        print()


def instructions():
    print('''
    
        **** Instructions ****
        
        To begin, enter the difficulty level between 1-3.
        
        Enter the number of questions, 5 is the minimum and 10 is the maximum.
        
        If an invalid or a number outside of the minimum and maximum range is entered, a helpful hint will be displayed.
        
        If an incorrect answer is entered, a message will display the correct answer. 
           
        There is an option at the end of the quiz to see the quiz history
            
            '''
          )

# compare the correct answer v the user input
# result - correct or incorrect


def compare_ans(user, ans):

    if user == ans:
        round_result = "correct"
    else:
        round_result = "incorrect"

    return round_result

# checks the input is an integer


def int_check(question, low, high):

    while True:
        error = f"\U0001F4A1 Hint \U0001F4A1  Enter an integer between {low} and {high}"

        to_check = input(question)

        try:
            response = int(to_check)

            # check the number is equal to or between the min & max range
            if low <= response <= high:
                return response

            else:
                print(error)

        except ValueError:
            print(error)

# Main routine


# quiz variables
rounds_played = 0
questions_incorrect = 0
questions_won = 0
yes_no = ["yes", "no"]
quiz_history = []

print()
print(" ⛰️ 🧻 ✂️ Multiplication Quiz ⛰️ 📰 ✂️ ")
print()

print("** Welcome to the Multiplication Quiz **")
print()

# instructions

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

if want_instructions == "yes":
    instructions()

# Difficulty level input
difficulty = int_check("Enter the difficulty level (1-easy, 2-medium, 3-hard): ", 1, 3)

# Define range based on difficulty
if difficulty == 1:
    min_num, max_num = 1, 5
    level = "Easy"
elif difficulty == 2:
    min_num, max_num = 5, 10
    level = "Medium"
else:
    min_num, max_num = 8, 12
    level = "Hard"

num_rounds = int_check("Enter the number of questions, 5 is the minimum, 10 is the maximum ", 5, 10)

# game loop starts here

while rounds_played < num_rounds:

    rounds_heading = f"\n*** {level} Question {rounds_played + 1} of {num_rounds} ***"

    print(rounds_heading)

    # Generate random numbers and the min & max range
    num_1 = random.randint(min_num, max_num)
    num_2 = random.randint(min_num, max_num)

    min_range = min_num * min_num
    max_range = max_num * max_num

    # Generate correct answer
    correct_answer = num_1 * num_2

    user_answer = int_check(f"What is {num_1} x {num_2}? ", min_range, max_range)

    # compare user answer
    result = compare_ans(user_answer, correct_answer)

    # Add counters for the result and the game history

    if result == "correct":
        questions_won += 1
        feedback = "\U0001F607 \U0001F929 Correct Answer! \U0001F929 \U0001F607"
    else:
        questions_incorrect += 1
        feedback = f"*** Incorrect! *** The correct answer is {correct_answer}"

    history_item = f"Question: {rounds_played + 1} - {feedback}"

    print(feedback)
    quiz_history.append(history_item)

    rounds_played += 1

    # Calculate stats
    rounds_won = rounds_played - questions_incorrect
    percentage_won = questions_won / rounds_played * 100
    percentage_lost = questions_incorrect / rounds_played * 100

    # Display Game Stats

    print()
    print(f"**** {level} QUIZ STATS ****")
    print(f"You correctly answered {rounds_won} out of {rounds_played} questions")
    print(f"Correct: {percentage_won:.2f} % Incorrect: {percentage_lost:.2f} % \t")

    print()
# Game history option
see_history = string_checker("Do you want to see your quiz history? ", yes_no)
if see_history == "yes":
    for item in quiz_history:
        print(item)

# End of program message
print()
print("The quiz has ended")