from otree.api import Currency as c, currency_range
from ._builtin import Page, WaitPage
from .models import Constants


class Send(Page):

    form_model = 'group'
    form_fields = ['sent_amount']

    def is_displayed(self):
        return self.player.id_in_group == 1

class WaitForP1(WaitPage):
    pass

class SendBack(Page):

    form_model = 'group'
    form_fields = ['sent_back_amount']

    def is_displayed(self):
        return self.player.id_in_group == 2

    def vars_for_template(self):
        return {
            'tripled_amount': self.group.sent_amount * Constants.multiplier
        }

    def sent_back_amount_choices(self):
        return currency_range(
            c(0),
            self.group.sent_amount * Constants.multiplier,
            c(1)
        )


class ResultsWaitPage(WaitPage):

    def after_all_players_arrive(self):
        group = self.group
        p1 = group.get_player_by_id(1)
        p2 = group.get_player_by_id(2)
        p1.payoff = Constants.endowment - group.sent_amount + group.sent_back_amount
        p2.payoff = group.sent_amount * Constants.multiplier - group.sent_back_amount


class Results(Page):
    pass


page_sequence = [
    Send,
    WaitForP1,
    SendBack,
    ResultsWaitPage,
    Results,
]