import random

# Check the user enters a valid
# option based on a list

def string_checker(question, valid_ans=("yes", "no")):
    error = f"Please enter a option from the following list: {valid_ans}"

    while True:
        # Get user response and make sure it is lowercase
        user_response = input(question).lower()

        for item in valid_ans:
            # check if the users response is a word in the list
            if item == user_response:
                return item
            # check if the users response is the same as
            # the first letter of an item in the list
            elif user_response == item[0]:
                return item

        # Print error f user does not enter a valid response
        print(error)
        print()

# Checks that the user enters an integer more than 0 (allows <enter>)
def int_check(question, low, high):
    while True:
        error = "please input and integer (whole number) between or equal to 1 or 15."

        to_check = input(question)

        try:
            response = int(to_check)

        # checks that their number is more than / equal to 1
            if high >= response <= low:
                print(error)
            else:
                return response

        except ValueError:
            print(error)

# Compare user/computer choice and returns
# Result (correct / incorrect)

def ans_compare(user, answer):
    # If the user and computer choice is the same it is a tie
    if user == answer:
        round_result = 'Correct'

    # If it is not a win / tie, the computer wins
    else:
        round_result = "Incorrect"

    return round_result

# Initialise game variables


mode = "regular"

rounds_played = 0
rounds_tried = 0
rounds_lost = 0

num_list_1 = [1, 2, 3, 4,5, 6, 7, 8, 9, 10, "xxx"]
num_list_2 = [1, 2, 3, 4,5, 6, 7, 8, 9, 10, "xxx"]

game_history = []
print("Multiplication Quiz")
print()


def instructions():
    print()
    print("Rock/Paper/Scissors game")


# Ask the user if they want to read the instructions (check if they want to see the instructions (yes/no)
want_instructions = string_checker(f'Would you like to see the instructions?').lower()
# Display the instructions if the user agreed to seeing them...
if want_instructions == "yes":
    """Prints instructions"""
    print("""
    ****Instructions****
    To begin, choose the number of rounds you would like to play, and one of
    following modes: E(easy), M(moderate), and H(hard).

    Then play against the computer. You need to

    the rules are as follows:
    o Paper beats rock
    o rock beats scissors
    o scissors beats paper

    Enter <xxx> if you would like to exit

    Good luck!
     """)

# Ask for the number of round they would like to play
num_rounds = int_check("How many rounds would you like to play? Please choose", 1, 15)

# Game loop starts here
while rounds_played < num_rounds:
    # rounds headings
    rounds_heading = f"\n Round {rounds_played + 1} of {num_rounds}"

    print(rounds_heading)

    # Randomly choose one number form both number lists, and add / multiply /
    # square them (depends on difficulty) to create
    # a solution to a random question.
    num1 = random.choice(num_list_1[:-1])
    num2 = random.choice(num_list_2[:-1])
    ans = num1 + num2

    # gets user choice
    user_input = string_checker(f"What does {num1} + {num2} equal?")
    print("you chose", user_input)

    # if user choice is the exit code, break the loop
    if user_input == "xxx":
        break

    result =  ans_compare(user_input, ans)

    # Adjust game lost / game tried and adds results to the game history
    if result == "Correct":
        rounds_tried += 1
        feedback = "Correct"
    else:
        rounds_lost += 1
        feedback = "Incorrect"

    #  set up round feedback and output it user
    # add it to the game history list (include the round number)
    round_feedback = f"{user_input} = {ans}?, {feedback}"
    history_item = f"Round: {rounds_played + 1} - {round_feedback}"

    print(round_feedback)
    game_history.append(history_item)

    rounds_played += 1

# game loop ends here

# game history / statistics area

if rounds_played > 0:
    # calculate statistics
    rounds_won = rounds_played - rounds_tried - rounds_lost
    percent_won = rounds_won / rounds_played * 100
    percent_lost = rounds_lost / rounds_played * 100
    percent_tied = rounds_tried / rounds_played * 100

    # output game statistics
    print("Game Statistics")
    print(f"Won: {percent_won:.2f} \t"
          f"Lost: {percent_lost:.2f} \t"
          f"Tied: {percent_tied:.2f}")

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

    print()
    print("Thank you for playing")

else:
    print("Oops, you chickened out!")