from ._builtin import Page, WaitPage


class Introduction(Page):

    def is_displayed(self):
        return self.round_number == 1 or self.round_number == 3


class Possessor(Page):
    form_model = 'group'
    form_fields = ['decision']

    def is_displayed(self):
        return self.player.role() == 'Possessor'


class Challenger(Page):
    form_model = 'group'
    form_fields = ['decision']

    def is_displayed(self):
        return self.player.role() == 'Challenger'


class ResultsWaitPage(WaitPage):
    title_text = ' '
    body_text = 'Please wait for the other player to make a decision.'

    def after_all_players_arrive(self):
        for p in self.group.get_players():
            p.set_payoff()


class Results(Page):
    def vars_for_template(self):
        me = self.player
        opponent = me.other_player()
        return {
            'my_decision': me.decision,
            'opponent_decision': opponent.decision,
            'same_choice': me.decision == opponent.decision,
        }


page_sequence = [
    Introduction,
    Possessor,
    Challenger,
    ResultsWaitPage,
    Results
]