from django.db import models
from classes.models import SchoolClass

class Student(models.Model):
    GENDER_CHOICES = [('M', 'Male'), ('F', 'Female'), ('O', 'Other')]
    STATUS_CHOICES = [('active', 'Active'), ('inactive', 'Inactive'), ('graduated', 'Graduated')]

    first_name = models.CharField(max_length=100)
    last_name = models.CharField(max_length=100)
    student_id = models.CharField(max_length=20, unique=True)
    email = models.EmailField(unique=True)
    phone = models.CharField(max_length=20, blank=True)
    date_of_birth = models.DateField(null=True, blank=True)
    gender = models.CharField(max_length=1, choices=GENDER_CHOICES, default='M')
    address = models.TextField(blank=True)
    school_class = models.ForeignKey(SchoolClass, on_delete=models.SET_NULL, null=True, blank=True, related_name='students')
    enrollment_date = models.DateField(auto_now_add=True)
    status = models.CharField(max_length=20, choices=STATUS_CHOICES, default='active')
    photo = models.ImageField(upload_to='students/', blank=True, null=True)
    created_at = models.DateTimeField(auto_now_add=True)

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

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

    class Meta:
        ordering = ['last_name', 'first_name']