algorithms-practice/design_patterns/state/real.py at master · andrelbd1/algorithms-practice · GitHub

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from abc import abstractmethod, ABCMeta


class State(metaclass=ABCMeta):
    @abstractmethod
    def doThis(self):
        pass


class StartState(State):
    def doThis(self):
        print("TV Switching ON.")


class StopState(State):
    def doThis(self):
        print("TV Switching OFF.")


class TVContext(State):
    def __init__(self):
        self.state = None

    def getState(self):
        return self.state

    def setState(self, state):
        self.state = state

    def doThis(self):
        self.state.doThis()


if __name__ == "__main__":
    context = TVContext()
    start = StartState()
    stop = StopState()

    context.setState(stop)
    context.doThis()