from otree.api import *

class C(BaseConstants):
    NAME_IN_URL = 'intro'
    PLAYERS_PER_GROUP = None
    NUM_ROUNDS = 1

class Subsession(BaseSubsession):
    pass

class Group(BaseGroup):
    pass

class Player(BasePlayer):
    pass

# FUNCTIONS
def creating_session(subsession):
    #TREATMENT
    import itertools
    treatment_cycle = itertools.cycle(['C','MM','FF','MF','FM'])
    if 'treatment' in subsession.session.config:
        for player in subsession.get_players():
            participant = player.participant
            participant.treatment = subsession.session.config['treatment']
    else:
        for player in subsession.get_players():
            participant = player.participant
            participant.treatment = next(treatment_cycle)
    
# PAGES
class Screen1(Page):
    pass

page_sequence = [Screen1]