# Part of Odoo. See LICENSE file for full copyright and licensing details.
# Original Copyright 2015 Eezee-It, modified and maintained by Odoo.

from hashlib import sha256

from odoo import fields, models

from odoo.addons.payment_sips.const import SUPPORTED_CURRENCIES


class PaymentProvider(models.Model):
    _inherit = 'payment.provider'

    code = fields.Selection(
        selection_add=[('sips', "Sips")], ondelete={'sips': 'set default'})
    sips_merchant_id = fields.Char(
        string="Merchant ID", help="The ID solely used to identify the merchant account with Sips",
        required_if_provider='sips')
    sips_secret = fields.Char(
        string="SIPS Secret Key", size=64, required_if_provider='sips', groups='base.group_system')
    sips_key_version = fields.Integer(
        string="Secret Key Version", required_if_provider='sips', default=2)
    sips_test_url = fields.Char(
        string="Test URL", required_if_provider='sips',
        default="https://payment-webinit.simu.sips-services.com/paymentInit")
    sips_prod_url = fields.Char(
        string="Production URL", required_if_provider='sips',
        default="https://payment-webinit.sips-services.com/paymentInit")
    sips_version = fields.Char(
        string="Interface Version", required_if_provider='sips', default="HP_2.31")

    def _get_supported_currencies(self):
        """ Override of `payment` to return the supported currencies. """
        supported_currencies = super()._get_supported_currencies()
        if self.code == 'sips':
            supported_currencies = supported_currencies.filtered(
                lambda c: c.name in SUPPORTED_CURRENCIES.keys()
            )
        return supported_currencies

    def _sips_generate_shasign(self, data):
        """ Generate the shasign for incoming or outgoing communications.

        Note: self.ensure_one()

        :param str data: The data to use to generate the shasign
        :return: shasign
        :rtype: str
        """
        self.ensure_one()

        key = self.sips_secret
        shasign = sha256((data + key).encode('utf-8'))
        return shasign.hexdigest()
