import random

def int_check(min_value, max_value, prompt):
    """
    Ask the user for an integer between min_value and max_value (inclusive).
    Accepts 'quit' to exit early (returns the string 'quit').
    Keeps prompting until a valid integer is entered.
    """
    while True:
        response = input(prompt).strip()
        if response.lower() == "quit":
            return "quit"
        # allow negative numbers if needed; here we expect positive so use isdigit
        if response.lstrip("-").isdigit():
            value = int(response)
            if min_value <= value <= max_value:
                return value
            else:
                print(f"Please enter a number between {min_value} and {max_value}.\n")
        else:
            print("That is not a valid whole number. Type a number or 'quit' to stop.\n")

def choose_difficulty():
    """
    Let the user choose difficulty. Returns a tuple (name, max_value).
    Ranges match your original code:
      easy   -> randint(2, 12)
      medium -> randint(2, 15)
      hard   -> randint(2, 20)
    """
    while True:
        choice = input("Select difficulty (easy / medium / hard): ").strip().lower()
        if choice == "easy":
            return "easy", 12
        if choice == "medium":
            return "medium", 15
        if choice == "hard":
            return "hard", 20
        print("Invalid choice. Please type easy, medium, or hard.\n")

def ask_question_count():
    """
    Ask how many questions the user wants. Minimum 1, maximum 1000 (arbitrary cap).
    """
    while True:
        response = input("How many questions would you like? (type a whole number): ").strip()
        if response.lower() == "quit":
            return "quit"
        if response.isdigit():
            num = int(response)
            if num > 0:
                return num
            else:
                print("Please enter a number greater than 0.\n")
        else:
            print("That is not a valid whole number. Try again or type 'quit' to exit.\n")

def run_quiz():
    global random_2, random_1
    print("====================================")
    print("        MULTIPLICATION QUIZ         ")
    print("====================================\n")
    print("Type 'quit' at any prompt to exit early.\n")

    difficulty, max_rand = choose_difficulty()
    question_num = ask_question_count()
    if question_num == "quit":
        print("No questions selected. Exiting.")
        return

    # initialize counters
    rounds_played = 0
    score = 0

    # main loop (keeps your original structure)
    while rounds_played < question_num:
        print(f"\n--- Question {rounds_played + 1} of {question_num} ")
        if difficulty == "easy":
            random_1 = random.randint(2, 12)
            random_2 = random.randint(2, 12)
        if difficulty == "medium":
            random_1 = random.randint(2, 15)
            random_2 = random.randint(2, 15)
        if difficulty == "hard":
            random_1 = random.randint(2, 20)
            random_2 = random.randint(2, 20)

        ans = random_1 * random_2
        # use int_check with a reasonable allowed range for answers
        # smallest possible product is 2*2=4, largest depends on difficulty (12*12=144, 15*15=225, 20*20=400)
        user_ans = int_check(4, 400, f"What is {random_1} x {random_2} = ")

        if user_ans == "quit":
            print("\nYou chose to quit the quiz early.")
            break

        if user_ans == ans:
            print("You got it!")
            score += 1
        else:
            print(f"The correct answer was {ans}")

        rounds_played = rounds_played + 1

    # summary
    print("\n====================================")
    print("               SUMMARY              ")
    print("====================================")
    print(f"Difficulty: {difficulty}")
    print(f"Questions attempted: {rounds_played}")
    print(f"Score: {score}/{rounds_played}")
    print("====================================\n")

if __name__ == "__main__":
    run_quiz()