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

class Introduction(Page):
    pass

class Send(Page):

    form_model = models.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 = models.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.multiplication_factor
        }

    def sent_back_amount_choices(self):
        return currency_range(
            c(0),
            self.group.sent_amount * Constants.multiplication_factor,
            c(0.5)
        )


class ResultsWaitPage(WaitPage):

    def after_all_players_arrive(self):
        self.group.set_payoffs()


class Results(Page):

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


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