from django.db import models
from django.conf import settings


class LabGuideUpload(models.Model):
    id = models.AutoField(primary_key=True)
    user = models.ForeignKey(
        settings.AUTH_USER_MODEL,
        on_delete=models.CASCADE,
        related_name="lab_guide_uploads",
    )
    original_file_name = models.CharField(max_length=255)
    file_size = models.IntegerField()
    file_hash = models.CharField(max_length=128)
    public_url = models.URLField()
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = "lab_guide_uploads"