from django.db import models
from django.utils.translation import gettext_lazy as _

from university.db.fields import JSONField


class OnlineExamQuestion(models.Model):

    TYPE_SINGLE_CHOICE = 0
    TYPE_MUTI_CHOICE = 1

    tag = models.CharField(max_length=32)
    question_type = models.SmallIntegerField(
        choices=(
            (TYPE_SINGLE_CHOICE, _('single choice')),
            (TYPE_MUTI_CHOICE, _('muti choice')),
        ), default=TYPE_SINGLE_CHOICE)
    problem = models.TextField()
    body = JSONField(default={})
    answer = JSONField(default={})
    difficulty_level = models.SmallIntegerField(default=1)
    comment = models.TextField()

    class Meta:
        db_table = 'online_exam_questions'