from django.urls import reverse
from django.conf import settings

from djadhere.utils import send_notification
from .models import PaymentUpdate


def notify_payment_update(request, update, old_update=None):
    benevole = '%s <%s>' % (request.user.username, request.user.email)
    message = 'Bénévole : ' + benevole
    message += '\n\nPaiement :\n\n'

    try:
        last_validated_update = PaymentUpdate.objects.latest('start')
    except PaymentUpdate.DoesNotExist:
        last_validated_update = None

    if old_update:
        message += '\t- %s\n' % old_update
        message += '\t+ %s\n' % update
        subject = 'Mise à jour d’une demande de saisie bancaire'
    else:
        message += '\t%s\n' % update
        subject = 'Nouvelle demande de saisie bancaire'
    subject += ' %s %d' % (update.payment.payment_type(), update.payment.payment_object().pk)

    base_url = 'https' if request.is_secure() else 'http'
    base_url += '://' + request.get_host()
    message += '\nVoir : ' + base_url + reverse('admin:banking_recurringpayment_change', args=(update.payment.pk,))
    message += '\nDébiteur : ' + base_url + reverse('admin:banking_recurringpayment_debtor', args=(update.payment.pk,))

    send_notification(subject, message, settings.PAYMENTS_EMAILS, cc=[benevole])