import unittest
import urllib.error
from unittest.mock import MagicMock, patch

from pr.core.api import call_api, list_models


class TestApi(unittest.TestCase):

    @patch("pr.core.api.urllib.request.urlopen")
    @patch("pr.core.api.auto_slim_messages")
    def test_call_api_success(self, mock_slim, mock_urlopen):
        mock_slim.return_value = [{"role": "user", "content": "test"}]
        mock_response = MagicMock()
        mock_response.read.return_value = (
            b'{"choices": [{"message": {"content": "response"}}], "usage": {"tokens": 10}}'
        )
        mock_urlopen.return_value.__enter__.return_value = mock_response

        result = call_api([], "model", "http://url", "key", True, [{"name": "tool"}])

        self.assertIn("choices", result)
        mock_urlopen.assert_called_once()

    @patch("urllib.request.urlopen")
    @patch("pr.core.api.auto_slim_messages")
    def test_call_api_http_error(self, mock_slim, mock_urlopen):
        mock_slim.return_value = [{"role": "user", "content": "test"}]
        mock_urlopen.side_effect = urllib.error.HTTPError(
            "http://url", 500, "error", None, MagicMock()
        )

        result = call_api([], "model", "http://url", "key", False, [])

        self.assertIn("error", result)

    @patch("urllib.request.urlopen")
    @patch("pr.core.api.auto_slim_messages")
    def test_call_api_general_error(self, mock_slim, mock_urlopen):
        mock_slim.return_value = [{"role": "user", "content": "test"}]
        mock_urlopen.side_effect = Exception("test error")

        result = call_api([], "model", "http://url", "key", False, [])

        self.assertIn("error", result)

    @patch("urllib.request.urlopen")
    def test_list_models_success(self, mock_urlopen):
        mock_response = MagicMock()
        mock_response.read.return_value = b'{"data": [{"id": "model1"}]}'
        mock_urlopen.return_value.__enter__.return_value = mock_response

        result = list_models("http://url", "key")

        self.assertEqual(result, [{"id": "model1"}])

    @patch("urllib.request.urlopen")
    def test_list_models_error(self, mock_urlopen):
        mock_urlopen.side_effect = Exception("error")

        result = list_models("http://url", "key")

        self.assertIn("error", result)


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