import logging
import os

import requests
from django.conf import settings
from django.db import transaction
from django.utils import timezone
from yandex_money.models import Payment

from finance.loggers import FinanceLogger
from finance.models import InvoiceRebilling
from lms import celery_app

finance_logger = FinanceLogger()

@celery_app.task
def periodic_billing():
        finance_logger.info("start periodic billing task")
        invoices = InvoiceRebilling.objects.filter(method='Y').exclude(status='F')
        for invoice in invoices.filter(expected_date__lt=timezone.now()):
            # выбираем все необработанные из прошлого
            with transaction.atomic():
                try:
                    _yandex_repeat_card_payment(invoice)
                except Exception as exc:
                    finance_logger.exception('YandexMoney repeatCardPayment Exception', invoice_id=invoice.id)
                    invoice.comment = 'Ошибка при попытке повторного платежа, свяжитесь с клиентской службой'
                invoice.save()


def _yandex_repeat_card_payment(invoice):
    user = invoice.bill.user
    yandex_pay = Payment.objects.create(
        order_amount=invoice.price,
        customer_number=user.id,
        user=user,
        cps_email=user.email,
        shop_id=settings.YANDEX_MONEY_REBILLING_SHOP_ID,
        scid=settings.YANDEX_MONEY_REBILLING_SCID
    )
    invoice.yandex_pay = yandex_pay

    finance_logger.info('YandexMoney repeatCardPayment start', invoice_id=invoice.id)
    resp = requests.post(
        url=settings.YANDEX_MONEY_MWS_URL + 'repeatCardPayment',
        data={
            'clientOrderId': invoice.id,  # уникальное возрастающее целое число
            'invoiceId': invoice.key,
            'amount': invoice.price,
            'orderNumber': invoice.yandex_pay.order_number
        },
        cert=(
            os.path.join(settings.SSL_ROOT, 'skillbox.cer'),
            os.path.join(settings.SSL_ROOT, 'skillbox.key')
        ),
        verify=os.path.join(settings.SSL_ROOT, 'yamoney_chain.cer')
    )
    # TODO тут проверять нет ли ошибки яндекса (даже при 200 ответе)
    finance_logger.info('YandexMoney repeatCardPayment ended',
                        invoice_id=invoice.id, response=resp.text, code=resp.status_code, )