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


class StudentProfile(models.Model):
    user = models.OneToOneField(
        settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='student_profile'
    )
    bio = models.TextField(blank=True)
    # Additional profile fields (expanded in Phase 2)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return f"Profile — {self.user.get_full_name()}"


class TeacherProfile(models.Model):
    user = models.OneToOneField(
        settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='teacher_profile'
    )
    bio = models.TextField(blank=True)
    specialization = models.CharField(max_length=200, blank=True)
    qualification = models.CharField(max_length=200, blank=True)
    programs = models.ManyToManyField(
        'admissions.Program',
        blank=True,
        related_name='teachers',
        help_text='Programs this teacher is assigned to teach',
    )
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return f"Teacher — {self.user.get_full_name()}"