# -*- coding: utf-8 -*-
from datetime import timedelta

from django.db.models import Q
from django.core.mail import EmailMessage
from django.template.loader import render_to_string
from django.conf import settings

from project.customer import consts


SUPPORT_EMAIL = getattr(settings, 'SUPPORT_EMAIL')


def check_one_profile(profile, License, now_, manual=False):
    profile_was_active = profile.active

    licenses = (License.objects.filter(company=profile, date_from__lte=now_, date_to__gte=now_, deleted=False)
        .filter(Q(status__in = [consts.LICENSE_TEST_PERIOD, consts.LICENSE_ACTIVE]) | Q(order_status=consts.ORDER_PAID))
    )

    licenses.filter(order_status=consts.ORDER_PAID).update(status=consts.LICENSE_ACTIVE)

    profile.active = False
    if licenses:
        profile.active = True

    profile.save()

    user_email = profile.users.get().email

    # если профиль только что активирован
    if profile.active and not profile_was_active:
        template_name = 'myauth/license_activated.txt'
        subject = u'Документор: Профиль активирован'
        dict_context = {
            'user_email': user_email,
            'support_email': SUPPORT_EMAIL,
            'license_starts': licenses[0].date_from,
            'license_ends': licenses[0].date_to,
        }
        email_body = render_to_string(template_name, dict_context)
        email = EmailMessage(subject=subject, to=(user_email,), body=email_body)
        email.send()

    if not manual:
        licenses_remain = License.objects.filter(company=profile, date_from__gt = now_ + timedelta(days=1),
            order_status=consts.ORDER_PAID, deleted=False)

        if not licenses_remain:
            licenses_to_pay = License.objects.filter(company=profile, order_status=consts.ORDER_UNPAID, deleted=False)

            licenses = License.objects.filter(company=profile, date_to__lt=now_,
                status__in=[consts.LICENSE_TEST_PERIOD, consts.LICENSE_ACTIVE], deleted=False)

            licenses.update(status=consts.LICENSE_EXPIRED)

            if licenses:
                template_name = 'myauth/license_ended.txt'
                subject = u'Документор: срок действия лицензии окончен'
                dict_context = {
                    'user_email': user_email,
                    'support_email': SUPPORT_EMAIL,
                    'license_ends': licenses[0].date_to,
                    'licenses_to_pay': licenses_to_pay,
                }
                email_body = render_to_string(template_name, dict_context)
                email = EmailMessage(subject=subject, to=(user_email,), body=email_body)
                email.send()

            licenses = License.objects.filter(company=profile, date_to = now_ + timedelta(days=1),
                status__in=[consts.LICENSE_TEST_PERIOD, consts.LICENSE_ACTIVE], deleted=False)

            if licenses:
                template_name = 'myauth/license_ends.txt'
                subject = u'Документор: окончание срока действия лицензии'
                dict_context = {
                    'user_email': user_email,
                    'support_email': SUPPORT_EMAIL,
                    'license_ends': licenses[0].date_to,
                    'licenses_to_pay': licenses_to_pay,
                }
                email_body = render_to_string(template_name, dict_context)
                email = EmailMessage(subject=subject, to=(user_email,), body=email_body)
                email.send()

        licenses = License.objects.filter(company=profile, order_date = now_ - timedelta(days = consts.ORDER_PAY_DAYS - 1),
            order_status=consts.ORDER_UNPAID, deleted=False)

        if licenses:
            template_name = 'myauth/license_to_pay.txt'
            subject = u'Документор: есть неоплаченные счета'
            dict_context = {
                'user_email': user_email,
                'support_email': SUPPORT_EMAIL,
            }
            email_body = render_to_string(template_name, dict_context)
            email = EmailMessage(subject=subject, to=(user_email,), body=email_body)
            email.send()


def raise_if_no_profile(request):
    if not request.user.profile:
        raise Exception(u"Profile not found for user: %d, '%s'" % (request.user.pk, request.user.username))