from otree.api import (
    models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer,
    Currency as c, currency_range
)

doc = ''
class Constants(BaseConstants):
    name_in_url = 'ultimatum'
    players_per_group = 2
    num_rounds = 1
    Endowment = c(100)
class Subsession(BaseSubsession):
    pass
class Group(BaseGroup):
    Offer = models.CurrencyField(label='What do you offer?', max=Constants.Endowment, min=0)
    Reply = models.BooleanField(choices=[[True, 'Yes'], [False, 'No']], label='Do you accept the offer?')
    def set_payoffs(self):
        p1 = self.get_player_by_id(1)
        p2 = self.get_player_by_id(2)
        if self.Reply==True:
            p1.payoff = Constants.Endowment - self.Offer
            p2.payoff = self.Offer
        else:
            p1.payoff=0
            p2.payoff=0
class Player(BasePlayer):
    pass