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

author = 'Your name here'

doc = """
Your app description
"""


class Constants(BaseConstants):
    name_in_url = 'intro'
    players_per_group = None
    num_rounds = 1


class Subsession(BaseSubsession):
    pass


class Group(BaseGroup):
    pass


class Player(BasePlayer):
    
    read1  = models.BooleanField(widget=widgets.CheckboxInput)
    agree1 = models.BooleanField()

    code1 = models.CharField()
    
    def read1_error_message(self, value):
        #print('value is', value)
        if value == False:
            return 'You must confirm that you have read the consent.'


    def personal_code(self):
        letters = ['A','B','C','D','E','F','G','H','I','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
        if self.code1 is None:
            a = random.choice(letters) 
            b = random.choice(letters)
            c = random.choice(letters)
            d = random.randint(100,999)
            self.code1 = a + b + c + '-' + str(d)          
        else: 
            return "done"