from django.contrib.auth.models import User
from django.contrib.auth.signals import user_logged_out
from django.contrib.contenttypes.models import ContentType
from django.contrib.sessions.models import Session
from django.db import models

from django.utils import timezone

from django.core.mail import EmailMultiAlternatives
from django.template.loader import get_template

from django.conf import settings

class GDPRAgreed(models.Model):
    user = models.ForeignKey('auth.User', on_delete=models.CASCADE)
    agreed_at = models.DateTimeField()


class PendingGDPRAgree(models.Model):
    user = models.ForeignKey('auth.User', on_delete=models.CASCADE)
    token = models.TextField()

    def agree(self):
        GDPRAgreed(user=self.user, agreed_at=timezone.now()).save()
        self.delete()

    def email(self):
        html_content = get_template('rugwebsite/email/gdpr_consent.html').render(
            {'user': self.user, 'token': self.token, 'url': settings.SITE_URL}
        )
        text_content = get_template('rugwebsite/email/gdpr_consent.txt').render(
            {'user': self.user, 'token': self.token, 'url': settings.SITE_URL}
        )
        msg = EmailMultiAlternatives(
            'Over uw persoonsgegevens',
            text_content,
            'no-reply@cosmo.service.rug.nl',
            [self.user.email])
        msg.attach_alternative(html_content, "text/html")
        msg.send()


class PendingGDPRDelete(models.Model):
    user = models.ForeignKey('auth.User', on_delete=models.CASCADE)
    token = models.TextField()

    def forget(self, request):
        self.user.username = 'deleted_at_{}'.format(timezone.now())
        self.user.first_name = ''
        self.user.last_name = ''
        self.user.email = ''
        self.user.is_active = False
        self.user.save()
        user_logged_out.send(sender=self.user.__class__, request=request, user=self.user)
        self.delete()

    def email(self):
        html_content = get_template('rugwebsite/email/gdpr_delete.html').render(
            {'user': self.user, 'token': self.token, 'url': settings.SITE_URL}
        )
        text_content = get_template('rugwebsite/email/gdpr_delete.txt').render(
            {'user': self.user, 'token': self.token, 'url': settings.SITE_URL}
        )

        msg = EmailMultiAlternatives(
            'Verzoek verwijdering persoonsgegevens',
            text_content,
            'cosmo@rug.nl',
            [self.user.email])
        msg.attach_alternative(html_content, "text/html")
        msg.send(fail_silently=False)