########################################################################################################################
#    File: base.py
#  Author: Dan Huckson, https://github.com/unodan
#    Date: 2018-11-10
########################################################################################################################


class Hookman(object):
    instance = None

    def __new__(cls, **kwargs):
        if not cls.instance:
            cls.instance = super(Hookman, cls).__new__(cls)
            cls.instance.manager = _HookManager()

        return cls.instance.manager


class _HookManager(object):
    def __init__(self):
        self.hooks = {}

    def register(self, window, hook, callback):

        if window not in self.hooks:
            self.hooks[window] = {hook: {}}

        key = window + '/' + hook + '/' + str(len(self.hooks[window][hook]))
        self.hooks[window][hook].update({key: callback})

    def get_hook(self, target, hook):
        if hook in self.hooks[target]:
            print(target, hook)
            return self.hooks[target][hook]

    def get_hooks(self, target):
        if target in self.hooks:
            return self.hooks[target]