from otree.api import *

doc = """
Experiment participation consent
"""


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


class Subsession(BaseSubsession):
    pass


class Group(BaseGroup):
    pass


class Player(BasePlayer):
    consent = models.BooleanField(
        label="I confirm that I have read and understood the consent form "
              "and voluntarily agree to participate in this study."
    )


class Consent(Page):
    form_model = 'player'
    form_fields = ['consent']

    @staticmethod
    def error_message(player, values):
        if not values['consent']:
            return "Please confirm your consent before continuing."


page_sequence = [Consent]