"""
Profile models for user extensions.
"""
import uuid

from django.core.validators import RegexValidator
from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver


class Profile(models.Model):
    """Extension of the Django User model"""
    ROLE_CHOICES = (
        ('admin', 'Admin'),
        ('team_leader', 'Team Leader'),
        ('team_member', 'Team Member'),
    )

    phone_regex = RegexValidator(
        regex=r'^\+?1?\d{9,15}$',
        message="Phone number must be entered in the format: '+999999999'. Up to 15 digits allowed."
    )

    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    user = models.OneToOneField(User, on_delete=models.CASCADE, related_name='profile')
    first_name = models.CharField(max_length=100)
    last_name = models.CharField(max_length=100)
    primary_phone = models.CharField(max_length=20)
    secondary_phone = models.CharField(max_length=20, blank=True, null=True)
    email = models.EmailField()
    role = models.CharField(max_length=20, choices=ROLE_CHOICES, default='team_member')
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        app_label = 'core'
        verbose_name = 'Profile'
        verbose_name_plural = 'Profiles'
        ordering = ['first_name', 'last_name']

    def __str__(self):
        return f"{self.first_name} {self.last_name}"

    @property
    def full_name(self):
        return f"{self.first_name} {self.last_name}"

    @property
    def is_admin(self):
        return self.role == 'admin'

    @property
    def is_team_leader(self):
        return self.role == 'team_leader'

    @property
    def is_team_member(self):
        return self.role == 'team_member'


@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    """Create a Profile when a new User is created"""
    if created and not hasattr(instance, 'profile'):
        Profile.objects.create(
            user=instance,
            first_name=instance.first_name or '',
            last_name=instance.last_name or '',
            email=instance.email or '',
            primary_phone=''  # This will need to be updated later
        )