# -*- coding: utf-8 -*-

from functools import reduce

class ListedSubWindow(object):
    def __init__(self):
        super(ListedSubWindow, self).__init__()
        self.sub_win_cnt = 0
        self.sub_win_list = []

    def sub_win_count(self):
        return self.sub_win_cnt

    def sub_win_list(self):
        return self.sub_win_list.copy()

    def sub_win_add(self, name, win):
        self.sub_win_list.append((name, win))
        self.sub_win_cnt += 1
        print(f"+ {name} ({self.sub_win_cnt})")

    def sub_win_del(self, name):
        self.sub_win_list = list(
            filter(
                lambda x: x[0] != name,
                self.sub_win_list
            )
        )
        self.sub_win_cnt = len(self.sub_win_list)
        print(f"- {name} ({self.sub_win_cnt})")

    def sub_win_exists(self, name):
        return reduce(
            lambda acc, n: (acc or (n[0] == name)),
            self.sub_win_list,
            False
        )