from django.db import models
from django.utils.timezone import now
from django.conf import settings
from django.utils.translation import gettext_lazy as _

from GestionLogin.models import Profil
from GestionEnseignants.models import Classe

from datetime import datetime

class FraisInscription(models.Model):
    class OptionsPaiements(models.IntegerChoices):
        PAIEMENT_1_FOIS   = 0, _('Paiement en une seule fois')
        PAIEMENT_MENSUEL   = 1, _('Paiement mensuel')
        PAIEMENT_TRIMESTRIEL   = 2, _('Paiement trimestriel')

    nom = models.CharField(max_length=255, unique=True)
    description = models.TextField(blank=True)
    montant_de_base = models.DecimalField(max_digits=10, decimal_places=2)
    reductions = models.JSONField(blank=True, null=True)
    supplements = models.JSONField(blank=True, null=True)
    date_debut_validite = models.DateField()
    date_fin_validite = models.DateField()
    options_paiement = models.IntegerField(choices=OptionsPaiements, default=OptionsPaiements.PAIEMENT_1_FOIS)

    def __str__(self):
        return self.nom

class Langue(models.Model):
    id = models.AutoField(primary_key=True)
    libelle = models.CharField(max_length=200, default="")

    def __str__(self):
        return "LANGUE"

class Responsable(models.Model):
    nom = models.CharField(max_length=200, default="")
    prenom = models.CharField(max_length=200, default="")
    dateNaissance = models.CharField(max_length=200, default="", blank=True)
    adresse = models.CharField(max_length=200, default="", blank=True)
    mail = models.CharField(max_length=200, default="", blank=True)
    telephone = models.CharField(max_length=200, default="", blank=True)
    profession = models.CharField(max_length=200, default="", blank=True)
    profilAssocie = models.ForeignKey(Profil, on_delete=models.CASCADE)

    def __str__(self):
        return self.nom + "_" + self.prenom

class Frere(models.Model):
    id = models.AutoField(primary_key=True)
    nom = models.CharField(max_length=200, default="")
    prenom = models.CharField(max_length=200, default="")
    dateNaissance = models.CharField(max_length=200, default="", blank=True)

    def __str__(self):
        return "FRERE"

class Eleve(models.Model):

    class GenreEleve(models.IntegerChoices):
        NONE   = 0, _('Sélection du genre')
        MALE   = 1, _('Garçon')
        FEMALE   = 2, _('Fille')
    
    class NiveauEleve(models.IntegerChoices):
        NONE   = 0, _('Sélection du niveau')
        TPS   = 1, _('TPS - Très Petite Section')
        PS   = 2, _('PS - Petite Section')
        MS   = 3, _('MS - Moyenne Section')
        GS = 4, _('GS - Grande Section')

    class ModePaiement(models.IntegerChoices):
        NONE   = 0, _('Sélection du mode de paiement')
        PRELEVEMENT_SEPA   = 1, _('Prélèvement SEPA')
        CHEQUE   = 2, _('Chèque')

    nom = models.CharField(max_length=200, default="")
    prenom = models.CharField(max_length=200, default="")
    genre = models.IntegerField(choices=GenreEleve, default=GenreEleve.NONE, blank=True)
    niveau = models.IntegerField(choices=NiveauEleve, default=NiveauEleve.NONE, blank=True)
    nationalite = models.CharField(max_length=200, default="", blank=True)
    adresse = models.CharField(max_length=200, default="", blank=True)
    dateNaissance = models.DateField(null=True, blank=True)
    lieuNaissance = models.CharField(max_length=200, default="", blank=True)
    codePostalNaissance = models.IntegerField(default=0, blank=True)
    medecinTraitant = models.CharField(max_length=200, default="", blank=True)
    modePaiement = models.IntegerField(choices=ModePaiement, default=ModePaiement.NONE, blank=True)

    # Relation N-N
    profils = models.ManyToManyField(Profil, blank=True)
 
    # Relation N-N
    responsables = models.ManyToManyField(Responsable, blank=True)

    # Relation N-N
    freres = models.ManyToManyField(Frere, blank=True)

    # Relation N-N
    languesParlees = models.ManyToManyField(Langue, blank=True)

    # Relation 1-N
    classeAssociee = models.ForeignKey(Classe, on_delete=models.SET_NULL, null=True, blank=True, related_name='eleves')

    def __str__(self):
        return self.nom + "_" + self.prenom

    def getLanguesParlees(self):
        return self.languesParlees.all()

    def getResponsablePrincipal(self):
        return self.responsables.all()[0]

    def getResponsables(self):
        return self.responsables.all()

    def getProfils(self):
        return self.profils.all()

    def getFreres(self):
        return self.freres.all()

    def getNbFreres(self):
        return self.freres.count()

    @property
    def age(self):
        if self.dateNaissance:
            today = datetime.today()
            years = today.year - self.dateNaissance.year
            months = today.month - self.dateNaissance.month
            if today.day < self.dateNaissance.day:
                months -= 1
            if months < 0:
                years -= 1
                months += 12

            # Déterminer le format de l'âge
            if months >= 6 and months <= 12:
                return f"{years} ans 1/2"
            else:
                return f"{years} ans"
        return None

    @property 
    def dateNaissance_formattee(self): 
        if self.dateNaissance: 
            return self.dateNaissance.strftime('%d-%m-%Y') 
        return None

class FicheInscription(models.Model):

    class EtatDossierInscription(models.IntegerChoices):
        DI_ABSENT   = 0, _('Pas de dossier d\'inscription')
        DI_CREE   = 1, _('Dossier d\'inscription créé')
        DI_ENVOYE   = 2, _('Dossier d\'inscription envoyé')
        DI_EN_VALIDATION = 3, _('Dossier d\'inscription en cours de validation')
        DI_A_RELANCER   = 4, _('Dossier d\'inscription à relancer')
        DI_VALIDE = 5, _('Dossier d\'inscription validé')
        DI_ARCHIVE = 6, _('Dossier d\'inscription archivé')

    # Relation 1-1
    eleve = models.OneToOneField(Eleve, on_delete=models.CASCADE, primary_key=True)
    etat = models.IntegerField(choices=EtatDossierInscription, default=EtatDossierInscription.DI_ABSENT)
    dateMAJ = models.DateTimeField(auto_now=True)
    notes = models.CharField(max_length=200, blank=True)
    codeLienInscription = models.CharField(max_length=200, default="", blank=True)
    fichierInscription = models.FileField(upload_to=settings.DOCUMENT_DIR, default="", blank=True)
    di_associe = models.CharField(max_length=200, default="", blank=True)

    def __str__(self):
        return "FI_" + self.eleve.nom + "_" + self.eleve.prenom