11. Force Book_Dictionaries - Exercise 100/100 Functions

# 11. Force Book 100/100
# Dictionaries - Exercise
# https://judge.softuni.org/Contests/Compete/Index/1737#10


def force_user_exists(force_book_dict: dict, user: str):
    for user_list in force_book_dict.values():
        if user in user_list:
            return True
    return False


def remove_user_from_side(force_book_dict: dict, user: str):
    for (side, users) in force_book_dict.items():
        if user in users:
            force_book_dict[side].remove(user)


def initial_join_force_side(force_book_dict: dict, side: str, user: str):
    if side not in force_book_dict.keys() and not force_user_exists(force_book_dict, user):
        force_book_dict[side] = []
        force_book_dict[side].append(user)

    elif not force_user_exists(force_book_dict, user):
        force_book_dict[side].append(user)


def join_force_side(force_book_dict: dict, side: str, user: str):
    if side not in force_book_dict.keys() and not force_user_exists(force_book_dict, user):
        force_book_dict[side] = []
        force_book_dict[side].append(user)

    elif not force_user_exists(force_book_dict, user):
        if side not in force_book_dict.keys():
            force_book_dict[side] = []
        force_book_dict[side].append(user)

    elif force_user_exists(force_book_dict, user):
        remove_user_from_side(force_book_dict, user)

        if side not in force_book_dict.keys():
            force_book_dict[side] = []

        force_book_dict[side].append(user)

    print(f'{user} joins the {side} side!')


force_book = {}

command = input()
while command != 'Lumpawaroo':
    if '|' in command:
        details = command.split(' | ')
        force_side = details[0]
        force_user = details[1]

        initial_join_force_side(force_book, force_side, force_user)

    elif '->' in command:
        details = command.split(' -> ')
        force_user = details[0]
        force_side = details[1]

        join_force_side(force_book, force_side, force_user)

    command = input()

for key, value in force_book.items():
    if len(value) > 0:
        print(f'Side: {key}, Members: {len(value)}')
        for el in value:
            print(f"! {el}")