import sys
from unittest.mock import MagicMock, patch

import pytest

from scripts.health_check import main


class TestHealthCheckCLI:
    @patch("scripts.health_check.duckdb.connect")
    @patch("scripts.health_check.config")
    def test_all_ok_exits_0(self, mock_config, mock_connect):
        mock_config.DATABASE_PATH = "/fake/db"
        mock_conn = MagicMock()
        mock_conn.execute.return_value.fetchone.side_effect = [
            [150],   # motion count
            [100],   # total motions
            [100],   # embeddings count
            [100],   # total motions
            [0],     # missing explanations
        ]
        mock_connect.return_value = mock_conn

        with patch.object(sys, "argv", ["health_check"]):
            exit_code = main()
        assert exit_code == 0

    @patch("scripts.health_check.duckdb.connect")
    @patch("scripts.health_check.config")
    def test_critical_exits_2(self, mock_config, mock_connect):
        mock_config.DATABASE_PATH = "/fake/db"
        mock_conn = MagicMock()
        mock_conn.execute.return_value.fetchone.side_effect = [
            [0],     # no recent motions
            [100],   # total motions
            [100],   # embeddings count
            [100],   # total motions
            [0],     # missing explanations
        ]
        mock_connect.return_value = mock_conn

        with patch.object(sys, "argv", ["health_check"]):
            exit_code = main()
        assert exit_code == 2

    @patch("scripts.health_check.duckdb.connect")
    @patch("scripts.health_check.config")
    def test_json_format(self, mock_config, mock_connect, capsys):
        mock_config.DATABASE_PATH = "/fake/db"
        mock_conn = MagicMock()
        mock_conn.execute.return_value.fetchone.side_effect = [
            [150], [100], [100], [100], [0]
        ]
        mock_connect.return_value = mock_conn

        with patch.object(sys, "argv", ["health_check", "--format", "json"]):
            main()

        captured = capsys.readouterr()
        assert '"status": "ok"' in captured.out
        assert '"exit_code": 0' in captured.out

    @patch("scripts.health_check.duckdb.connect")
    def test_db_connect_failure_exits_2(self, mock_connect):
        mock_connect.side_effect = Exception("cannot open")

        with patch.object(sys, "argv", ["health_check"]):
            exit_code = main()
        assert exit_code == 2