from otree.api import *

doc = """
Your app description
"""


class Constants(BaseConstants):
    name_in_url = 'trustgame_learning'
    players_per_group = 2
    num_rounds = 1
    completion_code='12345'

    endowment = cu(10)
    multiplication_factor = 3

class Subsession(BaseSubsession):
    pass


class Group(BaseGroup): #useful to save group level variables, also if info is shared, also if only one player needs to do smth
    sent_amount = models.CurrencyField(
        label="How much do you want to send to participant B?",
        min=cu(0),
        max=Constants.endowment
    )
    sent_back_amount = models.CurrencyField(
        label="How much would you like to send back?"
    )


class Player(BasePlayer): #write functions
    pass

#### Specify functions ####
def sent_back_amount_choices(group): #this fctn automatically runs since it is connected by name to sent_back_amount
    return currency_range(
        cu(0), #min
        group.sent_amount * Constants.multiplication_factor, #max
        cu(1) #increments
    )

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.multiplication_factor - group.sent_back_amount


############################

# PAGES
class Send(Page):
    form_model = 'group'
    form_fields = ['sent_amount']

    @staticmethod
    def is_displayed(player):
        return player.id_in_group == 1

class WaitforP1(WaitPage):
    pass

class SendBack(Page):
    form_model = 'group'
    form_fields = ['sent_back_amount']

    @staticmethod
    def is_displayed(player):
        return player.id_in_group == 2

    @staticmethod
    def vars_for_template(player):
        group=player.group
        return dict(
            tripled_amount=group.sent_amount * Constants.multiplication_factor
        )

class ResultsWaitPage(WaitPage):
    after_all_players_arrive = set_payoffs


class Results(Page):
    pass


page_sequence = [Send, WaitforP1, SendBack, ResultsWaitPage, Results]