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

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 = c(100)
    multiplier = 3
    instructions_template = 'trust/instructions.html'
class Subsession(BaseSubsession):
    pass
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)
    def sent_back_amount_max(self):
        return self.sent_amount * Constants.multiplier
    def set_payoffs(self):
        p1 = self.get_player_by_id(1)
        p2 = self.get_player_by_id(2)
        p1.payoff = Constants.endowment - self.sent_amount + self.sent_back_amount
        p2.payoff = self.sent_amount * Constants.multiplier - self.sent_back_amount
class Player(BasePlayer):
    pass