from odoo.tests.common import TransactionCase
from odoo.tests import tagged
from odoo.exceptions import UserError


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

    def test_default_loads_active_ids(self):
        partners = self.env['res.partner'].create([
            {'name': 'B1'}, {'name': 'B2'},
        ])
        wizard = self.env['fusion.batch.followup.wizard'].with_context(
            active_model='res.partner', active_ids=partners.ids,
        ).create({})
        self.assertEqual(set(wizard.partner_ids.ids), set(partners.ids))

    def test_selected_scope_no_partners_raises(self):
        wizard = self.env['fusion.batch.followup.wizard'].create({
            'scope': 'selected', 'partner_ids': [(6, 0, [])],
        })
        with self.assertRaises(UserError):
            wizard.action_run()

    def test_run_completes_with_no_overdue_partners(self):
        partners = self.env['res.partner'].create([
            {'name': 'NoOverdue1'}, {'name': 'NoOverdue2'},
        ])
        wizard = self.env['fusion.batch.followup.wizard'].create({
            'scope': 'selected',
            'partner_ids': [(6, 0, partners.ids)],
            'force': True,
        })
        wizard.action_run()
        self.assertEqual(wizard.state, 'done')
        # 2 partners with no overdue → both skipped
        self.assertEqual(wizard.skipped_count, 2)