from django.db import models
from simple_history.models import HistoricalRecords
from django.core.validators import MinValueValidator
from django.contrib.auth.models import User


class PaymentMethod(models.Model):
    """
    Stores payment methods.
    """
    class Meta:
        verbose_name="Moyen de paiement"
        verbose_name_plural = "Moyens de paiement"

    name = models.CharField(max_length=255, verbose_name="Nom")
    """
    The name of the PaymentMethod.
    """
    is_active = models.BooleanField(default=True, verbose_name="Actif")
    """
    If False, the PaymentMethod can't be use anywhere.
    """
    is_usable_in_cotisation = models.BooleanField(default=True, verbose_name="Cotisations ?")
    """
    If true, the PaymentMethod can be used to pay cotisation.
    """
    is_usable_in_reload = models.BooleanField(default=True, verbose_name="Rechargements ?")
    """
    If true, the PaymentMethod can be used to reload an user account.
    """
    affect_balance = models.BooleanField(default=False, verbose_name="Affecte le solde")
    """
    If true, the PaymentMethod will decrease the user's balance when used.
    """   
    icon = models.CharField(max_length=255, verbose_name="Icône", blank=True)
    """
    A font awesome icon (without the fa)
    """
    history = HistoricalRecords()

    def __str__(self):
        return self.name

class GeneralPreferences(models.Model):
    """
    Stores a unique line of general preferences
    """
    class Meta:
        verbose_name="Préférences générales"
        verbose_name_plural = "Préférences générales"

    is_active = models.BooleanField(default=True, verbose_name="Site actif")
    """
    If True, the site will be accessible. If False, all the requests are redirect to :func:`~preferences.views.inactive`.
    """
    active_message = models.TextField(blank=True, verbose_name="Message non actif")
    """
    Message displayed on the :func:`~preferences.views.inactive`
    """
    global_message = models.TextField(blank=True, verbose_name="Message global")
    """
    List of messages, separated by a carriage return. One will be chosen randomly at each request on displayed in the header
    """
    president = models.CharField(max_length=255, blank=True, verbose_name="Président")
    """
    The name of the president
    """
    treasurer = models.CharField(max_length=255, blank=True, verbose_name="Trésorier")
    """
    The name of the treasurer
    """
    secretary = models.CharField(max_length=255, blank=True, verbose_name="Secrétaire")
    """
    The name of the secretary
    """
    phoenixTM_responsible = models.CharField(max_length=255, blank=True, verbose_name="Responsable Phœnix Technopôle Metz")
    """
    The name of the people in charge of the club
    """
    use_pinte_monitoring = models.BooleanField(default=False, verbose_name="Suivi de pintes")
    """
    If True, alert will be displayed to allocate pints during order
    """
    lost_pintes_allowed = models.PositiveIntegerField(default=0, verbose_name="Nombre de pintes perdus admises")
    """
    If > 0, a user will be blocked if he has losted more pints than the value
    """
    floating_buttons = models.BooleanField(default=False, verbose_name="Boutons flottants")
    """
    If True, displays floating paymentButtons on the :func:`~gestion.views.manage` view.
    """
    home_text = models.TextField(blank=True, verbose_name="Message d'accueil")
    """
    Text display on the home page
    """
    automatic_logout_time = models.PositiveIntegerField(null=True, verbose_name="Temps de déconnexion automatique")
    """
    Duration after which the user is automatically disconnected if inactive
    """
    statutes = models.FileField(blank=True, null=True, verbose_name="Statuts")
    """
    The file of the statutes
    """
    rules = models.FileField(blank=True, null=True, verbose_name="Règlement intérieur")
    """
    The file of the internal rules
    """
    menu = models.FileField(blank=True, null=True, verbose_name="Menu")
    """
    The file of the menu
    """
    alcohol_charter = models.FileField(blank=True, null=True, verbose_name="Charte alcool")
    """
    The file of the alcohol charter
    """
    history = HistoricalRecords()

class Cotisation(models.Model):
    """
    Stores cotisations.
    """
    class Meta:
        permissions = (("can_divide", "Can divide money for cotisation"),)
    amount = models.DecimalField(max_digits=5, decimal_places=2, null=True, verbose_name="Montant", validators=[MinValueValidator(0)])
    """
    Price of the cotisation.
    """
    duration = models.PositiveIntegerField(verbose_name="Durée de la cotisation (jours)")
    """
    Duration (in days) of the cotisation
    """
    amount_ptm = models.DecimalField(max_digits=5, decimal_places=2, null=True, verbose_name="Montant pour le club Phœnix Technopôle Metz")
    """
    Amount of money given to the PTM club
    """
    history = HistoricalRecords()

    def __str__(self):
        if self.duration == 1:
            jour = "jour"
        else:
            jour = "jours"
        return "Cotisation de " + str(self.duration) + " " + jour + " pour le prix de " + str(self.amount) + "€"

class DivideHistory(models.Model):
    """
    Stores divide history
    """
    class Meta:
        verbose_name = "Historique répartition"

    date = models.DateTimeField(auto_now_add=True)
    """
    Date of the divide
    """
    total_cotisations = models.IntegerField(verbose_name="Nombre de cotisations")
    """
    Number of non-divided cotisations (before the divide)
    """
    total_cotisations_amount = models.DecimalField(max_digits=5, decimal_places=2, verbose_name="Montant total des cotisations")
    """
    Amount of non-divided cotisations (before the divide)
    """
    total_ptm_amount = models.DecimalField(max_digits=5, decimal_places=2, verbose_name="Montant donné au Phœnix Technopôle Metz")
    """
    Amount given to the PTM
    """
    coopeman = models.ForeignKey(User, on_delete=models.PROTECT, related_name="divide_realized")
    """
    Coopeman (:class:`django.contrib.auth.models.User`) who collected the reload.
    """

    def __str__(self):
        return "Répartition du " + str(self.date)
    

class PriceProfile(models.Model):
    """
    Stores parameters to compute price
    """
    name = models.CharField(max_length=255, verbose_name="Nom")
    a = models.DecimalField(verbose_name="Marge constante", max_digits=3, decimal_places=2)
    b = models.DecimalField(verbose_name="Marge variable", max_digits=3, decimal_places=2)
    c = models.DecimalField(verbose_name="Paramètre de forme", max_digits=4, decimal_places=2)
    alpha = models.DecimalField(verbose_name="Étendue", max_digits=4, decimal_places=2)
    use_for_draft = models.BooleanField(default=False, verbose_name="Utiliser pour les pressions ?")

    def save(self, *args, **kwargs):
        if self.use_for_draft:
            try:
                temp = PriceProfile.objects.get(use_for_draft=True)
                if self != temp:
                    temp.use_for_draft = False
                    temp.save()
            except PriceProfile.DoesNotExist:
                pass
        super(PriceProfile, self).save(*args, **kwargs)

    def __str__(self):
        return self.name