"""
Final coverage tests for app.py to push project to 85%+ total coverage.
Tests main menu navigation, help, exit, and diagnose functionality.
"""

from unittest.mock import patch

from qm2.app import main
from qm2.diagnose import main as diagnose_main


class TestAppCoverage:
    """Additional tests for app.py to improve overall project coverage."""
    
    def test_main_menu_help_option(self):
        """Test main menu help option navigation."""
        with patch('qm2.app.questionary.select') as mock_select:
            with patch('qm2.app.show_help') as mock_help:
                with patch('qm2.app.show_logo'):
                    with patch('qm2.app.console.clear'):
                        # Select help option, then exit
                        mock_select.return_value.ask.side_effect = ["6.) 💞 Help", "7.) ⏻  Exit"]
                        
                        with patch('qm2.app.questionary.confirm') as mock_confirm:
                            mock_confirm.return_value.ask.return_value = True
                            
                            # Run the main function (it will exit after second selection)
                            try:
                                main()
                            except SystemExit:
                                pass  # Expected when main() exits
                            
                            # Verify help was shown
                            mock_help.assert_called_once()
                            # Verify exit was confirmed
                            mock_confirm.assert_called_once()
    
    def test_main_menu_exit_no_confirmation(self):
        """Test main menu exit without confirmation."""
        with patch('qm2.app.questionary.select') as mock_select:
            with patch('qm2.app.show_logo'):
                with patch('qm2.app.console.clear'):
                    # Select exit option twice: first no, then yes
                    mock_select.return_value.ask.side_effect = ["7.) ⏻  Exit", "7.) ⏻  Exit"]
                    
                    with patch('qm2.app.questionary.confirm') as mock_confirm:
                        # First confirm: no, second confirm: yes
                        mock_confirm.return_value.ask.side_effect = [False, True]
                        
                        # Run the main function
                        try:
                            main()
                        except SystemExit:
                            pass  # Expected when main() exits
                            
                        # Verify confirm was called twice
                        assert mock_confirm.call_count == 2
    
    def test_main_menu_exit_with_confirmation(self):
        """Test main menu exit with confirmation."""
        with patch('qm2.app.questionary.select') as mock_select:
            with patch('qm2.app.show_logo'):
                with patch('qm2.app.console.clear'):
                    with patch('qm2.app.console.print') as mock_print:
                        # Select exit option and confirm
                        mock_select.return_value.ask.side_effect = ["7.) ⏻  Exit"]
                        
                        with patch('qm2.app.questionary.confirm') as mock_confirm:
                            mock_confirm.return_value.ask.return_value = True
                            
                            # Run the main function
                            try:
                                main()
                            except SystemExit:
                                pass  # Expected when main() exits
                            
                            # Verify exit message was printed
                            mock_print.assert_any_call("[bold green]👋 Exit. Good luck with your studies!")
    
    def test_main_menu_start_quiz_flow(self):
        """Test main menu start quiz flow."""
        with patch('qm2.app.questionary.select') as mock_select:
            with patch('qm2.app.show_logo'):
                with patch('qm2.app.console.clear'):
                    # Select quiz option, then exit
                    mock_select.return_value.ask.side_effect = ["1.) 🚀 Start Quiz", "7.) ⏻  Exit"]
                    
                    with patch('qm2.app._handle_quiz_choice') as mock_quiz:
                        with patch('qm2.app.questionary.confirm') as mock_confirm:
                            mock_confirm.return_value.ask.return_value = True
                            
                            # Run the main function
                            try:
                                main()
                            except SystemExit:
                                pass  # Expected when main() exits
                            
                            # Verify quiz handler was called
                            mock_quiz.assert_called_once()
    
    def test_main_menu_flashcards_flow(self):
        """Test main menu flashcards flow."""
        with patch('qm2.app.questionary.select') as mock_select:
            with patch('qm2.app.show_logo'):
                with patch('qm2.app.console.clear'):
                    # Select flashcards option, then exit
                    mock_select.return_value.ask.side_effect = ["2.) 👾 Flashcards Learning", "7.) ⏻  Exit"]
                    
                    with patch('qm2.app._handle_flashcards_choice') as mock_flashcards:
                        with patch('qm2.app.questionary.confirm') as mock_confirm:
                            mock_confirm.return_value.ask.return_value = True
                            
                            # Run the main function
                            try:
                                main()
                            except SystemExit:
                                pass  # Expected when main() exits
                            
                            # Verify flashcards handler was called
                            mock_flashcards.assert_called_once()
    
    def test_main_menu_questions_flow(self):
        """Test main menu questions flow."""
        with patch('qm2.app.questionary.select') as mock_select:
            with patch('qm2.app.show_logo'):
                with patch('qm2.app.console.clear'):
                    # Select questions option, then exit
                    mock_select.return_value.ask.side_effect = ["3.) 🗂️ Questions", "7.) ⏻  Exit"]
                    
                    with patch('qm2.app._handle_questions_menu') as mock_questions:
                        with patch('qm2.app.questionary.confirm') as mock_confirm:
                            mock_confirm.return_value.ask.return_value = True
                            
                            # Run the main function
                            try:
                                main()
                            except SystemExit:
                                pass  # Expected when main() exits
                            
                            # Verify questions handler was called
                            mock_questions.assert_called_once()
    
    def test_main_menu_statistics_flow(self):
        """Test main menu statistics flow."""
        with patch('qm2.app.questionary.select') as mock_select:
            with patch('qm2.app.show_logo'):
                with patch('qm2.app.console.clear'):
                    # Select statistics option, then exit
                    mock_select.return_value.ask.side_effect = ["4.) 📈 Statistics", "7.) ⏻  Exit"]
                    
                    with patch('qm2.app._handle_stats_menu') as mock_stats:
                        with patch('qm2.app.questionary.confirm') as mock_confirm:
                            mock_confirm.return_value.ask.return_value = True
                            
                            # Run the main function
                            try:
                                main()
                            except SystemExit:
                                pass  # Expected when main() exits
                            
                            # Verify stats handler was called
                            mock_stats.assert_called_once()
    
    def test_main_menu_tools_flow(self):
        """Test main menu tools flow."""
        with patch('qm2.app.questionary.select') as mock_select:
            with patch('qm2.app.show_logo'):
                with patch('qm2.app.console.clear'):
                    # Select tools option, then exit
                    mock_select.return_value.ask.side_effect = ["5.) 🧰 Tools", "7.) ⏻  Exit"]
                    
                    with patch('qm2.app._handle_tools_menu') as mock_tools:
                        with patch('qm2.app.questionary.confirm') as mock_confirm:
                            mock_confirm.return_value.ask.return_value = True
                            
                            # Run the main function
                            try:
                                main()
                            except SystemExit:
                                pass  # Expected when main() exits
                            
                            # Verify tools handler was called
                            mock_tools.assert_called_once()
    
    def test_diagnose_functionality(self):
        """Test diagnose.py functionality."""
        with patch('qm2.diagnose.ensure_dirs') as mock_ensure:
            with patch('qm2.diagnose.print') as mock_print:
                # Mock the paths to avoid dependency on actual file system
                with patch('qm2.diagnose.DATA_DIR', '/mock/data'):
                    with patch('qm2.diagnose.CATEGORIES_DIR', '/mock/categories'):
                        with patch('qm2.diagnose.CSV_DIR', '/mock/csv'):
                            with patch('qm2.diagnose.SCORES_FILE', '/mock/scores.json'):
                                diagnose_main()
                                
                                # Verify directories were ensured
                                mock_ensure.assert_called_once()
                                
                                # Verify output was printed
                                assert mock_print.call_count >= 6  # Header + 4 paths + success message
    
    def test_diagnose_main_function_structure(self):
        """Test diagnose main function structure and imports."""
        # Test that the function exists and is callable
        assert callable(diagnose_main)
        
        # Test the function has the expected signature
        import inspect
        sig = inspect.signature(diagnose_main)
        assert sig.parameters == {}  # No parameters expected
    
    def test_app_imports_and_structure(self):
        """Test app.py imports and main function structure."""
        # Test that main function exists and is callable
        assert callable(main)
        
        # Test the function has the expected signature
        import inspect
        sig = inspect.signature(main)
        assert sig.parameters == {}  # No parameters expected
