import _bootstrap  # noqa: F401

import unittest
from unittest.mock import patch

from fault_log_analyzer.config import Config


class TestConfig(unittest.TestCase):
    def test_defaults(self):
        with patch.dict("os.environ", {}, clear=True):
            cfg = Config.from_env()
            self.assertEqual(cfg.kafka_logs_raw_topic, "logs.raw")
            self.assertEqual(cfg.kafka_logs_fault_topic, "logs.fault")
            self.assertEqual(cfg.cluster_eps, 0.75)
            self.assertEqual(cfg.cluster_min_samples, 5)
            self.assertEqual(cfg.storage, "memory")
            self.assertEqual(cfg.api_port, 8080)

    def test_env_overrides(self):
        env = {
            "KAFKA_LOGS_RAW_TOPIC": "my.logs",
            "CLUSTER_EPS": "0.5",
            "CLUSTER_MIN_SAMPLES": "3",
            "API_PORT": "9090",
            "STORAGE": "mysql",
            "ES_HOSTS": "http://es1:9200, http://es2:9200",
            "CLUSTER_USE_SKLEARN": "true",
        }
        with patch.dict("os.environ", env, clear=True):
            cfg = Config.from_env()
            self.assertEqual(cfg.kafka_logs_raw_topic, "my.logs")
            self.assertEqual(cfg.cluster_eps, 0.5)
            self.assertEqual(cfg.cluster_min_samples, 3)
            self.assertEqual(cfg.api_port, 9090)
            self.assertEqual(cfg.storage, "mysql")
            self.assertEqual(cfg.es_hosts, ["http://es1:9200", "http://es2:9200"])
            self.assertTrue(cfg.cluster_use_sklearn)


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