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

import random
author = 'Your name here'

doc = """
Your app description
"""


class Constants(BaseConstants):
    name_in_url = 'pgg'
    players_per_group = 3
    num_rounds = 4
    alpha = 2
   #endowment = c(20)  #allows to change currency of unit
    switching_rounds = [1, 3]
    lb = 50
    ub = 150

class Subsession(BaseSubsession):    #this creates the on and off button for
    def creating_session(self):
        for i in self.get_players():
            #if self.round_number == 1:   this command is only when you want the random endowment to be only in the first round
            if self.session.config.get('hetero_endowment'):      #other way of writing if hetero_endowment is true
                i.endowment = random.randint(Constants.lb, Constants.ub)
            else:
                i.endowment = c(100)
            #else:
             #i.endowment = i.in_round(1).endowment    #again use this only when the hetero of endowment is in the first round



class Group(BaseGroup):
    total_contribution = models.CurrencyField()
    individual_share = models.CurrencyField()
    average_contribution = models.CurrencyField()
    #returning_amount = models.CurrencyField(min=0)

    def set_payoffs(self):
        self.total_contribution = sum([p.contribution for p in self.get_players()])
        self.average_contribution = self.total_contribution / Constants.players_per_group
        self.individual_share = Constants.alpha * self.average_contribution
        for p in self.get_players():
            p.payoff = p.endowment - p.contribution + self.individual_share


    #def set_statistics(self):


class Player(BasePlayer):
    endowment = models.CurrencyField()
    contribution = models.CurrencyField(min=0)