"""
Test module for main entry point functionality.
"""

import unittest
from unittest.mock import patch

from qt_theme_manager.main import main


class TestMainEntryPoint(unittest.TestCase):
    """Test cases for main entry point functionality."""

    def test_main_basic_functionality(self) -> None:
        """Test basic main function functionality."""
        self.assertTrue(callable(main))

    def test_main_with_no_arguments(self) -> None:
        """Test main function with no arguments."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = None
            result = main()
            self.assertEqual(result, 0)
            mock_cli_main.assert_called_once()

    def test_main_with_list_command(self) -> None:
        """Test main function with list command."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 0
            result = main()
            self.assertEqual(result, 0)
            mock_cli_main.assert_called_once()

    def test_main_with_set_command(self) -> None:
        """Test main function with set command."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 0
            result = main()
            self.assertEqual(result, 0)
            mock_cli_main.assert_called_once()

    def test_main_with_export_command(self) -> None:
        """Test main function with export command."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 0
            result = main()
            self.assertEqual(result, 0)
            mock_cli_main.assert_called_once()

    def test_main_with_current_command(self) -> None:
        """Test main function with current command."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 0
            result = main()
            self.assertEqual(result, 0)
            mock_cli_main.assert_called_once()

    def test_main_with_version_command(self) -> None:
        """Test main function with version command."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 0
            result = main()
            self.assertEqual(result, 0)
            mock_cli_main.assert_called_once()

    def test_main_with_help(self) -> None:
        """Test main function with help."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = None
            result = main()
            self.assertEqual(result, 0)
            mock_cli_main.assert_called_once()

    def test_main_with_invalid_argument(self) -> None:
        """Test main function with invalid argument."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 1
            result = main()
            self.assertEqual(result, 1)
            mock_cli_main.assert_called_once()

    def test_main_cli_error_handling(self) -> None:
        """Test main function error handling from CLI."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.side_effect = Exception("CLI Error")
            result = main()
            self.assertEqual(result, 1)

    def test_main_system_exit_handling(self) -> None:
        """Test main function SystemExit handling from CLI."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.side_effect = SystemExit(2)
            with self.assertRaises(SystemExit) as context:
                main()
            self.assertEqual(context.exception.code, 2)

    def test_main_keyboard_interrupt_handling(self) -> None:
        """Test main function KeyboardInterrupt handling."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.side_effect = KeyboardInterrupt()
            result = main()
            self.assertEqual(result, 1)

    def test_main_general_exception_handling(self) -> None:
        """Test main function general exception handling."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.side_effect = RuntimeError("Unexpected error")
            result = main()
            self.assertEqual(result, 1)

    def test_main_import_error_handling(self) -> None:
        """Test main function import error handling."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.side_effect = ImportError("Missing dependency")
            result = main()
            self.assertEqual(result, 1)

    def test_main_argument_handling(self) -> None:
        """Test main function argument handling."""
        # Test that main function can handle different argument scenarios
        self.assertTrue(callable(main))

        # Test basic functionality without arguments
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 0
            result = main()
            self.assertEqual(result, 0)

    def test_main_environment_variable_handling(self) -> None:
        """Test main function environment variable handling."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 0
            result = main()
            self.assertEqual(result, 0)

    def test_main_logging_setup(self) -> None:
        """Test main function logging setup."""
        with patch("qt_theme_manager.main.cli_main") as mock_cli_main:
            mock_cli_main.return_value = 0
            result = main()
            self.assertEqual(result, 0)
            # setup_logging is called at module level, not in main function
            # So we don't assert it was called in main()


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