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

from django import forms

doc = """
One player decides how to divide a certain amount between himself and the other
player.
See: Kahneman, Daniel, Jack L. Knetsch, and Richard H. Thaler. "Fairness
and the assumptions of economics." Journal of business (1986):
S285-S300.
"""


class Constants(BaseConstants):
    name_in_url = 'dictator'
    players_per_group = 2
    num_rounds = 8
    instructions_template = 'dictator/instructions.html'
    # Initial amount allocated to the dictator
    endowment = c(20)
    randomNumber = random.randint(1, 8)


class Subsession(BaseSubsession):
    pass


class Group(BaseGroup):
    kept = models.IntegerField(min=0, max=Constants.endowment)


class Player(BasePlayer):
    pass


# FUNCTIONS
def set_payoffs(group: Group):
    p1 = group.get_player_by_id(1)
    p2 = group.get_player_by_id(2)

    if group.round_number == Constants.randomNumber:
        p1.payoff = group.kept
        p2.payoff = Constants.endowment - group.kept


# PAGES
class Introduction(Page):
    @staticmethod
    def is_displayed(player: Player):
        return player.round_number == 1


class Offer1(Page):
    form_model = 'group'
    form_fields = ['kept']
    template_name = 'dictator2/Offer1.html'


class ResultsWaitPage(WaitPage):
    after_all_players_arrive = 'set_payoffs'


class Pose(Page):
    timeout_seconds = 20

    @staticmethod
    def is_displayed(player: Player):
        if player.round_number == 8:
            return
        else:
            return player.id_in_group == 1


class Results(Page):
    @staticmethod
    def is_displayed(player: Player):
        return player.id_in_group == 1

    @staticmethod
    def vars_for_template(player: Player):
        group = player.group

        return dict(offer=Constants.endowment - group.kept)


class Payout(Page):
    @staticmethod
    def is_displayed(player: Player):
        return player.round_number == 8





page_sequence = [Introduction, Offer1, ResultsWaitPage, Results, Pose, Payout]