from os import environ
from otree.api import (
    models, widgets, BaseConstants, BaseSubsession, BaseGroup, BasePlayer,
)

class Constants(BaseConstants):
    name_in_url = 'questionnaire'
    players_per_group = None
    num_rounds = 1
    timeout = 300
    comment_min_chars = 15
    comment_max_chars = 3000


class Subsession(BaseSubsession):
    pass


class Group(BaseGroup):
    pass


class Player(BasePlayer):
    liked_theme = models.StringField(
        choices=['Animal', 'Food', 'Summer'],
        widget=widgets.RadioSelectHorizontal,
        label='Which theme did you like best?'
    )
    comments = models.LongStringField(
        max_length=3000,
        blank=False,
        label="What are your comments on the experiment? (what you liked about it, what you didn't like; your answer should be at least " + str(Constants.comment_min_chars) + " characters long.)"
    )

    def comments_error_message(player, value):
        print('value lenth is', len(value))
        if len(value) < Constants.comment_min_chars:
            return 'Your answer should be at least ' + str(Constants.comment_min_chars) + ' characters long'
        if len(value) > Constants.comment_max_chars:
            return 'Your answer should be at most ' + str(Constants.comment_max_chars) + ' characters long'