# Part of Odoo. See LICENSE file for full copyright and licensing details.

import logging
import pprint

import requests
from werkzeug import urls

from odoo import _, fields, models
from odoo.exceptions import ValidationError

from odoo.addons.payment_mercado_pago import const


_logger = logging.getLogger(__name__)


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

    code = fields.Selection(
        selection_add=[('mercado_pago', "Mercado Pago")], ondelete={'mercado_pago': 'set default'}
    )
    mercado_pago_access_token = fields.Char(
        string="Mercado Pago Access Token",
        required_if_provider='mercado_pago',
        groups='base.group_system',
    )

    # === BUSINESS METHODS === #

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

    def _mercado_pago_make_request(self, endpoint, payload=None, method='POST'):
        """ Make a request to Mercado Pago API at the specified endpoint.

        Note: self.ensure_one()

        :param str endpoint: The endpoint to be reached by the request.
        :param dict payload: The payload of the request.
        :param str method: The HTTP method of the request.
        :return The JSON-formatted content of the response.
        :rtype: dict
        :raise ValidationError: If an HTTP error occurs.
        """
        self.ensure_one()

        url = urls.url_join('https://api.mercadopago.com', endpoint)
        headers = {'Authorization': f'Bearer {self.mercado_pago_access_token}'}
        try:
            if method == 'GET':
                response = requests.get(url, params=payload, headers=headers, timeout=10)
            else:
                response = requests.post(url, json=payload, headers=headers, timeout=10)
                try:
                    response.raise_for_status()
                except requests.exceptions.HTTPError:
                    _logger.exception(
                        "Invalid API request at %s with data:\n%s", url, pprint.pformat(payload),
                    )
                    try:
                        response_content = response.json()
                        error_code = response_content.get('error')
                        error_message = response_content.get('message')
                        raise ValidationError("Mercado Pago: " + _(
                            "The communication with the API failed. Mercado Pago gave us the"
                            " following information: '%s' (code %s)", error_message, error_code
                        ))
                    except ValueError:  # The response can be empty when the access token is wrong.
                        raise ValidationError("Mercado Pago: " + _(
                            "The communication with the API failed. The response is empty. Please"
                            " verify your access token."
                        ))
        except (requests.exceptions.ConnectionError, requests.exceptions.Timeout):
            _logger.exception("Unable to reach endpoint at %s", url)
            raise ValidationError(
                "Mercado Pago: " + _("Could not establish the connection to the API.")
            )
        return response.json()

    def _get_default_payment_method_codes(self):
        """ Override of `payment` to return the default payment method codes. """
        default_codes = super()._get_default_payment_method_codes()
        if self.code != 'mercado_pago':
            return default_codes
        return const.DEFAULT_PAYMENT_METHODS_CODES
