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

from django import forms


author = 'Magnus Strobel'

doc = """
Your app description
"""


class Constants(BaseConstants):
    name_in_url = 'written_self_description'
    players_per_group = None
    num_rounds = 1
    
    min_characters = 3000


class Subsession(BaseSubsession):
    pass


class Group(BaseGroup):
    pass


class Player(BasePlayer):
    written_self_description = models.TextField(
        # blank = True,
        label = "",
        widget= forms.Textarea(attrs={'id':'id_written_self_description'})
    )

    def written_self_description_error_message(self, value):
        error_message = "Bisher haben Sie lediglich " + str(len(value)) + " Zeichen geschrieben. Die erforderliche Mindestanzahl beträgt jedoch " + str(Constants.min_characters) + " Zeichen."
        if len(value) < Constants.min_characters:
            return error_message