# -*- coding: utf-8 -*-
from odoo.tests.common import TransactionCase, tagged


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

    def setUp(self):
        super().setUp()
        self.metric = self.env['fusion.billing.metric'].sudo().create(
            {'name': 'CPU seconds', 'code': 'cpu_seconds', 'aggregation': 'sum'})
        self.plan = self.env['sale.subscription.plan'].sudo().create(
            {'name': 'Monthly', 'billing_period_value': 1, 'billing_period_unit': 'month'})
        self.partner = self.env['res.partner'].sudo().create({'name': 'Acme'})
        self.sub = self.env['sale.order'].sudo().create({
            'partner_id': self.partner.id, 'is_subscription': True, 'plan_id': self.plan.id,
        })
        self.Usage = self.env['fusion.billing.usage'].sudo()

    def test_record_usage_creates_row(self):
        u = self.Usage._record_usage(
            self.sub, 'cpu_seconds', 120.0,
            '2026-05-01 00:00:00', '2026-06-01 00:00:00', idem='nexacloud:cpu:sub1:2026-05-01')
        self.assertEqual(u.quantity, 120.0)
        self.assertEqual(u.metric_id, self.metric)

    def test_idempotent_key_updates_not_duplicates(self):
        k = 'nexacloud:cpu:sub1:2026-05-01'
        self.Usage._record_usage(self.sub, 'cpu_seconds', 100.0, '2026-05-01', '2026-06-01', idem=k)
        self.Usage._record_usage(self.sub, 'cpu_seconds', 175.0, '2026-05-01', '2026-06-01', idem=k)
        rows = self.Usage.search([('idempotency_key', '=', k)])
        self.assertEqual(len(rows), 1)        # no duplicate
        self.assertEqual(rows.quantity, 175.0)  # last value wins for the same key