from otree.api import *
c = cu

doc = '\nThis is a standard 2-player trust game where the amount sent by player 1 gets\ntripled. The trust game was first proposed by\n<a href="http://econweb.ucsd.edu/~jandreon/Econ264/papers/Berg%20et%20al%20GEB%201995.pdf" target="_blank">\n    Berg, Dickhaut, and McCabe (1995)\n</a>.\n'
class Constants(BaseConstants):
    name_in_url = 'trust'
    players_per_group = 2
    num_rounds = 1
    endowment = cu(100)
    multiplier = 3
    instructions_template = 'trust/instructions.html'
class Subsession(BaseSubsession):
    pass
def sent_back_amount_max(group):
    return group.sent_amount * Constants.multiplier
def set_payoffs(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 Group(BaseGroup):
    sent_amount = models.CurrencyField(doc='Amount sent by P1', label='Please enter an amount from 0 to 100', max=Constants.endowment, min=0)
    sent_back_amount = models.CurrencyField(doc='Amount sent back by P2', min=0)
class Player(BasePlayer):
    pass
class Introduction(Page):
    form_model = 'player'
class Send(Page):
    form_model = 'group'
    form_fields = ['sent_amount']
    @staticmethod
    def is_displayed(player):
        group = player.group
        return player.id_in_group == 1
class SendBackWaitPage(WaitPage):
    pass
class SendBack(Page):
    form_model = 'group'
    form_fields = ['sent_back_amount']
    @staticmethod
    def is_displayed(player):
        group = player.group
        return player.id_in_group == 2
    @staticmethod
    def vars_for_template(player):
        group = player.group
        tripled_amount = group.sent_amount * Constants.multiplier
        return dict(tripled_amount=tripled_amount)
class ResultsWaitPage(WaitPage):
    after_all_players_arrive = set_payoffs
class Results(Page):
    form_model = 'player'
    @staticmethod
    def vars_for_template(player):
        group = player.group
        return dict(tripled_amount=group.sent_amount * Constants.multiplier)
page_sequence = [Introduction, Send, SendBackWaitPage, SendBack, ResultsWaitPage, Results]