import importlib.util
from pathlib import Path
import unittest

spec = importlib.util.spec_from_file_location(
    'sitting', Path(__file__).resolve().parents[1] / 'scripts/provision-sitting-requester.py')
m = importlib.util.module_from_spec(spec)
spec.loader.exec_module(m)


class SittingRequesterProvisioningTests(unittest.TestCase):
    def test_contract_is_create_only_informed_decision(self):
        m.contract()
        self.assertEqual(m.CLIENT['clientId'], 'informed-decision-sitting-requester')
        self.assertEqual(m.CLIENT['allowedScopes'], ['approval:create'])
        self.assertEqual(m.CLIENT['serviceSubject'], 'informed-decision')
        self.assertEqual(m.CCRS, ('CCR-2026-0026', 'CCR-2026-0027'))
        self.assertNotIn('CCR-2026-0024', m.CCRS)
        self.assertNotIn('CCR-2026-0025', m.CCRS)

    def test_contract_refuses_widened_scopes(self):
        original = list(m.CLIENT['allowedScopes'])
        m.CLIENT['allowedScopes'] = ['approval:create', 'approval:consume']
        with self.assertRaises(Exception):
            m.contract()
        m.CLIENT['allowedScopes'] = original

    def test_source_keycape_registration_matches_helper(self):
        import yaml
        clients = yaml.safe_load(Path('/home/worsch/key-cape/config/service-clients.example.yaml').read_text())['clients']
        named = next(c for c in clients if c['clientId'] == 'informed-decision-sitting-requester')
        self.assertEqual(named['secretRef'], 'env:' + m.ENV_NAME)
        self.assertEqual(named['allowedScopes'], ['approval:create'])
        self.assertEqual(named['serviceSubject'], 'informed-decision')


class SittingRequesterExchangeTests(unittest.TestCase):
    def test_exchange_helper_does_not_post_sittings(self):
        spec = importlib.util.spec_from_file_location(
            'exchange', Path(__file__).resolve().parents[1] / 'scripts/prove-sitting-requester-exchange.py')
        exchange = importlib.util.module_from_spec(spec)
        spec.loader.exec_module(exchange)
        source = Path(exchange.__file__).read_text()
        self.assertNotIn('/v1/approvals', source)
        self.assertEqual(exchange.CLIENT_ID, 'informed-decision-sitting-requester')
        self.assertEqual(exchange.POLICY, 'workload-kv-read-informed-decision-sitting-requester-client')
        self.assertIn('approval-requester', exchange.SIBLING)


if __name__ == '__main__':
    unittest.main()