from odoo.tests.common import TransactionCase, tagged
from odoo.addons.fusion_accounting_ai.services.data_adapters.base import (
    DataAdapter, AdapterMode,
)


@tagged('post_install', '-at_install')
class TestDataAdapterBase(TransactionCase):
    """Verify the data adapter base class chooses the correct backend."""

    def test_adapter_mode_pure_community(self):
        """With no fusion native and no Enterprise, adapter selects COMMUNITY."""
        adapter = DataAdapter(self.env)
        mode = adapter._select_mode(
            fusion_native_model='fusion.bank.rec.widget',
            enterprise_module='account_accountant',
        )
        self.assertIn(mode, (AdapterMode.FUSION, AdapterMode.ENTERPRISE, AdapterMode.COMMUNITY))

    def test_adapter_falls_back_when_fusion_model_missing(self):
        """Adapter must not error when the fusion native model isn't loaded."""
        adapter = DataAdapter(self.env)
        mode = adapter._select_mode(
            fusion_native_model='fusion.never.exists',
            enterprise_module='also_does_not_exist',
        )
        self.assertEqual(mode, AdapterMode.COMMUNITY)