# -*- coding: utf-8 -*-
# Copyright 2026 Nexa Systems Inc.
# License OPL-1 (Odoo Proprietary License v1.0)
"""Phase A — carrier field + outbound shipment link tests on fp.receiving.

See docs/superpowers/specs/2026-05-18-phase-a-shipping-carrier-foundation-design.md.
"""
from odoo.tests.common import TransactionCase


class TestCarrierFields(TransactionCase):

    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        cls.partner = cls.env['res.partner'].create({'name': 'CarrierCust'})
        cls.product = cls.env['product.product'].create({'name': 'Widget'})
        cls.so = cls.env['sale.order'].create({
            'partner_id': cls.partner.id,
            'order_line': [(0, 0, {
                'product_id': cls.product.id,
                'product_uom_qty': 1,
            })],
        })
        # Carrier records seeded by data/delivery_carrier_seed_data.xml.
        cls.carrier_ups = cls.env.ref(
            'fusion_plating_receiving.delivery_carrier_ups',
        )
        cls.carrier_fedex = cls.env.ref(
            'fusion_plating_receiving.delivery_carrier_fedex',
        )

    def _make_receiving(self, **kw):
        vals = {'sale_order_id': self.so.id}
        vals.update(kw)
        return self.env['fp.receiving'].create(vals)

    # ---- Field existence ------------------------------------------------

    def test_carrier_id_field_exists_on_receiving(self):
        recv = self._make_receiving()
        self.assertIn('x_fc_carrier_id', recv._fields)

    def test_outbound_shipment_id_field_exists_on_receiving(self):
        recv = self._make_receiving()
        self.assertIn('x_fc_outbound_shipment_id', recv._fields)

    # ---- action_create_outbound_shipment --------------------------------

    def test_action_create_outbound_shipment_creates_draft(self):
        recv = self._make_receiving(x_fc_carrier_id=self.carrier_ups.id)
        self.assertFalse(recv.x_fc_outbound_shipment_id)
        recv.action_create_outbound_shipment()
        self.assertTrue(recv.x_fc_outbound_shipment_id)
        ship = recv.x_fc_outbound_shipment_id
        self.assertEqual(ship.status, 'draft')
        self.assertEqual(ship.carrier_id, self.carrier_ups)
        self.assertEqual(ship.sale_order_id, self.so)

    def test_action_create_outbound_shipment_idempotent(self):
        recv = self._make_receiving(x_fc_carrier_id=self.carrier_ups.id)
        recv.action_create_outbound_shipment()
        first_ship = recv.x_fc_outbound_shipment_id
        recv.action_create_outbound_shipment()
        # Second call must not create a new shipment.
        self.assertEqual(recv.x_fc_outbound_shipment_id, first_ship)
        count = self.env['fusion.shipment'].search_count([
            ('sale_order_id', '=', self.so.id),
        ])
        self.assertEqual(count, 1)

    # ---- onchange propagation -------------------------------------------

    def test_carrier_id_change_propagates_to_draft_shipment(self):
        recv = self._make_receiving(x_fc_carrier_id=self.carrier_ups.id)
        recv.action_create_outbound_shipment()
        ship = recv.x_fc_outbound_shipment_id
        self.assertEqual(ship.carrier_id, self.carrier_ups)
        # Onchange triggers via the Form helper — we simulate by calling
        # the handler directly after writing.
        recv.x_fc_carrier_id = self.carrier_fedex.id
        recv._onchange_x_fc_carrier_id()
        self.assertEqual(ship.carrier_id, self.carrier_fedex)

    def test_carrier_id_change_does_not_propagate_to_confirmed_shipment(self):
        recv = self._make_receiving(x_fc_carrier_id=self.carrier_ups.id)
        recv.action_create_outbound_shipment()
        ship = recv.x_fc_outbound_shipment_id
        # Confirm the shipment — propagation must stop.
        ship.status = 'confirmed'
        recv.x_fc_carrier_id = self.carrier_fedex.id
        recv._onchange_x_fc_carrier_id()
        # Confirmed shipment retains the original carrier.
        self.assertEqual(ship.carrier_id, self.carrier_ups)