from __future__ import annotations

import unittest
from unittest.mock import patch

from pkgmgr.core.credentials.resolver import TokenResolver
from pkgmgr.core.credentials.types import TokenResult


class TestTokenResolverIntegration(unittest.TestCase):
    def test_full_resolution_flow_with_invalid_gh_and_keyring_then_prompt(self) -> None:
        """
        Full integration scenario:

        - ENV provides nothing
        - GitHub CLI (gh) is available and returns a token, but it is INVALID
        - Keyring contains a token, but it is INVALID
        - Interactive prompt provides a NEW token
        - New token is ACCEPTED and OVERWRITES the keyring entry
        """

        resolver = TokenResolver()

        def validate_side_effect(
            provider_kind: str,
            host: str,
            token: str,
        ) -> bool:
            return False  # gh + keyring invalid

        with (
            patch.dict("os.environ", {}, clear=True),
            patch(
                "pkgmgr.core.credentials.providers.gh.shutil.which",
                return_value="/usr/bin/gh",
            ),
            patch(
                "pkgmgr.core.credentials.providers.gh.subprocess.check_output",
                return_value="gh-invalid-token\n",
            ),
            patch(
                "pkgmgr.core.credentials.providers.keyring._import_keyring"
            ) as mock_import_keyring,
            patch(
                "pkgmgr.core.credentials.providers.prompt.sys.stdin.isatty",
                return_value=True,
            ),
            patch(
                "pkgmgr.core.credentials.providers.prompt.getpass",
                return_value="new-valid-token",
            ),
            patch(
                "pkgmgr.core.credentials.resolver.validate_token",
                side_effect=validate_side_effect,
            ) as validate_mock,
        ):
            mock_keyring = mock_import_keyring.return_value
            mock_keyring.get_password.return_value = "keyring-invalid-token"

            result = resolver.get_token(
                provider_kind="github",
                host="github.com",
            )

        # ----------------------------------------------------------------------
        # Assertions
        # ----------------------------------------------------------------------
        self.assertIsInstance(result, TokenResult)
        self.assertEqual(result.token, "new-valid-token")
        self.assertEqual(result.source, "prompt")

        # validate_token was called ONLY for gh and keyring
        validated_tokens = [call.args[2] for call in validate_mock.call_args_list]
        self.assertIn("gh-invalid-token", validated_tokens)
        self.assertIn("keyring-invalid-token", validated_tokens)
        self.assertNotIn("new-valid-token", validated_tokens)

        # Keyring must be overwritten with the new token
        mock_keyring.set_password.assert_called_once()
        _service, _username, stored_token = mock_keyring.set_password.call_args.args
        self.assertEqual(stored_token, "new-valid-token")


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