from django.db import models

class Specialite(models.Model):
    nom = models.CharField(max_length=100)
    dateCreation = models.DateTimeField(auto_now=True)
    codeCouleur = models.CharField(max_length=7, default='#FFFFFF')

    def __str__(self):
        return self.nom

class Enseignant(models.Model):
    nom = models.CharField(max_length=100)
    prenom = models.CharField(max_length=100)
    mail = models.EmailField(unique=True)
    specialite = models.ForeignKey(Specialite, on_delete=models.SET_NULL, null=True, blank=True, related_name='enseignants')

    def __str__(self):
        return f"{self.nom} {self.prenom}"

class Classe(models.Model):
    nom_ambiance = models.CharField(max_length=255)
    tranche_age = models.JSONField()
    nombre_eleves = models.PositiveIntegerField()
    langue_enseignement = models.CharField(max_length=255)
    annee_scolaire = models.CharField(max_length=9)
    dateCreation = models.DateTimeField(auto_now_add=True)
    specialites = models.ManyToManyField(Specialite, related_name='classes')
    enseignant_principal = models.ForeignKey(Enseignant, on_delete=models.SET_NULL, null=True, blank=True, related_name='classes_principal')
                                          
    def __str__(self):
        return self.nom_ambiance