from otree.api import *


doc = """
This is the public goods game
"""


class C(BaseConstants):
    NAME_IN_URL = 'public_goods_game'
    PLAYERS_PER_GROUP = 4
    NUM_ROUNDS = 1
    ENDOWMENT = 1500
    MULTIPLIER = 2


class Subsession(BaseSubsession):
    pass


class Group(BaseGroup):
    total_contribution = models.FloatField()
    individual_share = models.FloatField()


class Player(BasePlayer):
    contribution = models.FloatField(
        min=0, max=C.ENDOWMENT, label="How much do you want to contribute?"
    )


# FUNCTIONS
def set_payoffs(group: Group):
    players = group.get_players()
    contributions = [p.contribution for p in players]
    group.total_contribution = sum(contributions)
    group.individual_share = (
        group.total_contribution * C.MULTIPLIER / C.PLAYERS_PER_GROUP
    )

    for p in players:
        p.payoff = C.ENDOWMENT - p.contribution + group.individual_share


# PAGES
class Contribute(Page):
    form_model = 'player'
    form_fields = ['contribution']


class ResultsWaitPage(WaitPage):
    after_all_players_arrive = set_payoffs


class Results(Page):
    pass


page_sequence = [Contribute, ResultsWaitPage, Results]