from django.db import models


class ExamAttemptSection(models.Model):
    class Status(models.IntegerChoices):
        LOCKED = 0
        AVAILABLE = 1
        COMPLETED = 2

    attempt = models.ForeignKey("labs.ExamAttempt", on_delete=models.CASCADE)
    section = models.ForeignKey("labs.ExamSection", on_delete=models.CASCADE)
    display_order = models.IntegerField(default=0)
    status = models.IntegerField(choices=Status.choices, default=Status.LOCKED)
    started_at = models.DateTimeField(null=True, blank=True)
    completed_at = models.DateTimeField(null=True, blank=True)

    class Meta:
        db_table = "exam_attempt_sections"