import uuid
from django.db import models

class Shift(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    name = models.CharField(max_length=100)
    shift_code = models.CharField(max_length=50, unique=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return f"{self.name} - {self.shift_code}"

    class Meta:
        ordering = ['-created_at']