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

doc = """
This is a one-shot "Prisoner's Dilemma". Two players are asked separately
whether they want to cooperate or defect. Their choices directly determine the
payoffs.
"""


class Constants(BaseConstants):
    name_in_url = 'my_gift'
    players_per_group = 2
    num_rounds = 3

    instructions_template = 'my_gift/instructions.html'

    # payoff if 1 player defects and the other cooperates""",
    betray_payoff = c(100)
    betrayed_payoff = c(0) - c(50)

    # payoff if both players cooperate or both defect
    both_cooperate_payoff = c(50)
    both_defect_payoff = c(0)


class Subsession(BaseSubsession):
    def creating_session(self):
        # assign treatment
        import itertools
        treatment_assignment = itertools.cycle(['FF','UF','FP','FN'])
        all_paticipant_id = itertools.count(1)

        if self.round_number == 1:
            for p in self.get_players():
                if 'treatment' in self.session.config:
                    # for demo use 
                    p.treatment = self.session.config['treatment']
                else:
                    # live experiment
                    p.treatment = next(treatment_assignment)  

                print('set treatment to', p.treatment)
            
            for p in self.get_players():
                p.participant_number = next(all_paticipant_id)   

                print('assign', p.participant_number, 'as ID')
            
            for p in self.get_players():
                p.participant.vars['treatment'] = p.treatment
        
            for p in self.get_players():
                p.participant.vars['participant_id'] = p.participant_number

                print('participant variables are stored as', p.participant.vars)

        # make sure each player plays PD with each of other players once
        new_structure_1 = [[1,5],[9,13],[2,6],[10,14],[3,7],[11,15],[4,8],[12,16]]
        new_structure_2 = [[1,9],[5,13],[2,10],[6,14],[3,11],[7,15],[4,12],[8,16]]
        new_structure_3 = [[1,13],[5,9],[2,14],[6,10],[3,15],[7,11],[4,16],[8,12]]

        if self.round_number == 1:
            self.set_group_matrix(new_structure_1)
        else :
            if self.round_number == 2:
                self.set_group_matrix(new_structure_2)
            else :
                self.set_group_matrix(new_structure_3)

        self.session.vars['endowment_for_UF']=[50,100,150,200]


class Group(BaseGroup):
    def set_payoffs(self):
        for p in self.get_players():
            p.set_payoff()
    
    def set_endowments(self):
        for p in self.get_players():
            p.set_endowment()
            p.set_opponent_endowment()


class Player(BasePlayer):
    decision = models.StringField(
        choices=[['P', 'P'], ['Q', 'Q']],
        doc="""This player's decision""",
        widget=widgets.RadioSelect,
    )
    treatment = models.StringField()
    participant_number = models.IntegerField()
    endowment = models.CurrencyField()
    opponent_endowment = models.CurrencyField()
    total_payoff = models.CurrencyField()
    total_wealth= models.CurrencyField()

    def other_player(self):
        return self.get_others_in_group()[0]      

    def set_endowment(self):
        self.endowment = c(self.participant.vars['endowment_in_stage2'])

    def set_opponent_endowment(self):
        self.opponent_endowment = c(self.other_player().participant.vars['endowment_in_stage2']) 
        
    def set_payoff(self):
        payoff_matrix = dict(
            Cooperate=dict(
                Cooperate=Constants.both_cooperate_payoff,
                Defect=Constants.betrayed_payoff,
            ),
            Defect=dict(
                Cooperate=Constants.betray_payoff, Defect=Constants.both_defect_payoff
            ),
        )

        self.payoff = payoff_matrix[self.decision][self.other_player().decision]
        self.total_payoff = sum([p.payoff for p in self.in_all_rounds()])
        self.total_wealth = self.total_payoff + self.endowment