# -*- coding: utf-8 -*-
import hashlib
import hmac
import json
from unittest.mock import patch

from odoo.tests.common import TransactionCase, tagged


@tagged('post_install', '-at_install')
class TestWebhookEngine(TransactionCase):

    def setUp(self):
        super().setUp()
        self.service = self.env['fusion.billing.service'].sudo().create({
            'name': 'NexaCloud', 'code': 'nexacloud',
            'webhook_url': 'https://api.vps.nexasystems.ca/billing/webhook',
            'webhook_secret': 'whsec_test',
        })
        self.Webhook = self.env['fusion.billing.webhook'].sudo()

    def test_enqueue_signs_payload(self):
        wh = self.Webhook._enqueue(self.service, 'invoice.payment_failed', {'invoice': 'INV-1'})
        self.assertEqual(wh.state, 'pending')
        body = json.dumps({'invoice': 'INV-1'}, sort_keys=True, separators=(',', ':'))
        expected = hmac.new(b'whsec_test', body.encode(), hashlib.sha256).hexdigest()
        self.assertEqual(wh.signature, expected)

    def test_dispatch_marks_sent_on_2xx(self):
        wh = self.Webhook._enqueue(self.service, 'invoice.paid', {'invoice': 'INV-2'})

        class _Resp:
            status_code = 200
            text = 'ok'

        with patch('odoo.addons.fusion_centralize_billing.models.webhook.requests.post',
                   return_value=_Resp()) as mock_post:
            self.Webhook._cron_dispatch()
            self.assertTrue(mock_post.called)
        self.assertEqual(wh.state, 'sent')

    def test_dispatch_retries_then_deadletters(self):
        wh = self.Webhook._enqueue(self.service, 'invoice.paid', {'invoice': 'INV-3'})
        wh.write({'attempts': 7})  # already past max

        class _Resp:
            status_code = 500
            text = 'err'

        with patch('odoo.addons.fusion_centralize_billing.models.webhook.requests.post',
                   return_value=_Resp()):
            self.Webhook._cron_dispatch()
        self.assertEqual(wh.state, 'dead')