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

doc = '\nOne player decides how to divide a certain amount between himself and the other\nplayer.\n\nSee: Kahneman, Daniel, Jack L. Knetsch, and Richard H. Thaler. "Fairness\nand the assumptions of economics." Journal of business (1986):\nS285-S300.\n\n'
class Constants(BaseConstants):
    name_in_url = 'dictator'
    players_per_group = 2
    num_rounds = 1
    endowment = c(100)
    instructions_template = 'dictator/instructions.html'
class Subsession(BaseSubsession):
    pass
def set_payoffs(group):
    p1 = group.get_player_by_id(1)
    p2 = group.get_player_by_id(2)
    group.send_group=p1.send
    p1.payoff = Constants.endowment - group.send_group
    p2.payoff = group.send_group
class Group(BaseGroup):
    send_group = models.CurrencyField(doc='Amount dictator decided to keep for himself', label='I will send', max=Constants.endowment, min=0)
    set_payoffs = set_payoffs
class Player(BasePlayer):
    send = models.CurrencyField(label='I will send', max=Constants.endowment, min=0)