# coding: utf-8

import calendar

from django.db import models
from django.contrib.auth.models import User
from django.template import loader, Context
from django.core import mail
from django.conf import settings
from django.utils import timezone


def render_template(template_name, data):
    tmpl = loader.get_template(template_name)
    ctxt = Context(data)
    return tmpl.render(ctxt)


class Tirage(models.Model):
    title = models.CharField("Titre", max_length=300)
    ouverture = models.DateTimeField("Date et heure d'ouverture du tirage")
    fermeture = models.DateTimeField("Date et heure de fermerture du tirage")
    token = models.TextField("Graine du tirage", blank=True)
    active = models.BooleanField("Tirage actif", default=False)

    def date_no_seconds(self):
        return self.fermeture.strftime('%d %b %Y %H:%M')

    def __unicode__(self):
        return u"%s - %s" % (self.title, self.date_no_seconds())


class Salle(models.Model):
    name = models.CharField("Nom", max_length=300)
    address = models.TextField("Adresse")

    def __unicode__(self):
        return self.name


class Spectacle(models.Model):
    title = models.CharField("Titre", max_length=300)
    date = models.DateTimeField("Date & heure")
    location = models.ForeignKey(Salle)
    description = models.TextField("Description", blank=True)
    slots_description = models.TextField("Description des places", blank=True)
    price = models.FloatField("Prix d'une place")
    slots = models.IntegerField("Places")
    priority = models.IntegerField("Priorité", default=1000)
    tirage = models.ForeignKey(Tirage)
    listing = models.BooleanField("Les places sont sur listing")
    rappel_sent = models.DateTimeField("Mail de rappel envoyé", blank=True,
                                       null=True)

    class Meta:
        verbose_name = "Spectacle"
        ordering = ("priority", "date", "title",)

    def __repr__(self):
        return u"[%s]" % self.__unicode__()

    def timestamp(self):
        return "%d" % calendar.timegm(self.date.utctimetuple())

    def date_no_seconds(self):
        return self.date.strftime('%d %b %Y %H:%M')

    def __unicode__(self):
        return u"%s - %s, %s, %.02f€" % (self.title, self.date_no_seconds(),
                                         self.location, self.price)

    def send_rappel(self):
        # On récupère la liste des participants
        members = {}
        for attr in Attribution.objects.filter(spectacle=self).all():
            member = attr.participant.user
            if member.id in members:
                members[member.id].nb_attr = 2
            else:
                member.nb_attr = 1
                members[member.id] = member
        # On écrit un mail personnalisé à chaque participant
        mails_to_send = []
        mail_object = "%s - %s - %s" % (self.title, self.date_no_seconds(),
                                        self.location)
        for member in members.values():
            mail_body = render_template('mail-rappel.txt', {
                    'member': member,
                    'show': self})
            mail_tot = mail.EmailMessage(
                    mail_object, mail_body,
                    settings.RAPPEL_FROM, [member.email],
                    [], headers={'Reply-To': settings.RAPPEL_REPLY_TO})
            mails_to_send.append(mail_tot)
        # On envoie les mails
        connection = mail.get_connection()
        connection.send_messages(mails_to_send)
        # On enregistre le fait que l'envoi a bien eu lieu
        self.rappel_sent = timezone.now()
        self.save()
        # On renvoie la liste des destinataires
        return members.values()

PAYMENT_TYPES = (
    ("cash", u"Cash"),
    ("cb", "CB"),
    ("cheque", u"Chèque"),
    ("autre", u"Autre"),
)


class Participant(models.Model):
    user = models.ForeignKey(User)
    choices = models.ManyToManyField(Spectacle,
                                     through="ChoixSpectacle",
                                     related_name="chosen_by")
    attributions = models.ManyToManyField(Spectacle,
                                          through="Attribution",
                                          related_name="attributed_to")
    paid = models.BooleanField(u"A payé", default=False)
    paymenttype = models.CharField(u"Moyen de paiement",
                                   max_length=6, choices=PAYMENT_TYPES,
                                   blank=True)
    tirage = models.ForeignKey(Tirage)

    def __unicode__(self):
        return u"%s" % (self.user)

DOUBLE_CHOICES = (
    ("1", "1 place"),
    ("autoquit", "2 places si possible, 1 sinon"),
    ("double", "2 places sinon rien"),
)


class ChoixSpectacle(models.Model):
    participant = models.ForeignKey(Participant)
    spectacle = models.ForeignKey(Spectacle, related_name="participants")
    priority = models.PositiveIntegerField("Priorité")
    double_choice = models.CharField("Nombre de places",
                                     default="1", choices=DOUBLE_CHOICES,
                                     max_length=10)

    def get_double(self):
        return self.double_choice != "1"
    double = property(get_double)

    def get_autoquit(self):
        return self.double_choice == "autoquit"
    autoquit = property(get_autoquit)

    class Meta:
        ordering = ("priority",)
        unique_together = (("participant", "spectacle",),)
        verbose_name = "voeu"
        verbose_name_plural = "voeux"


class Attribution(models.Model):
    participant = models.ForeignKey(Participant)
    spectacle = models.ForeignKey(Spectacle, related_name="attribues")
    given = models.BooleanField(u"Donnée", default=False)

    def __unicode__(self):
        return u"%s -- %s" % (self.participant, self.spectacle)