from django.db import models
from .quiz_user_model import QuizUser
from .course_model import Course
from .exam_model import Exam
from .tag_model import Tag


class QuizSession(models.Model):
    user = models.ForeignKey(QuizUser, on_delete=models.CASCADE, related_name='quiz_sessions')
    course = models.ForeignKey(Course, on_delete=models.SET_NULL, null=True, blank=True)
    exams = models.ManyToManyField(Exam, blank=True)
    tags = models.ManyToManyField(Tag, blank=True)
    question_types = models.JSONField(default=list, blank=True) # Store as list of strings
    created_at = models.DateTimeField(auto_now_add=True)
    is_active = models.BooleanField(default=True)

    class Meta:
        ordering = ['-created_at']

    def __str__(self):
        return f"Session {self.id} for {self.user}"