"""Template for testing a new Textual screen.

Copy this template to tests/ and customize for your screen.
"""

import pytest

from styrene.app import StyreneApp

# Import your screen
# from styrene.screens.my_screen import MyScreen


class TestMyScreen:
    """Test suite for MyScreen."""

    @pytest.mark.asyncio
    async def test_screen_mounts(self):
        """Verify screen mounts without errors."""
        app = StyreneApp()
        async with app.run_test() as pilot:
            # TODO: Push your screen
            # await pilot.app.push_screen(MyScreen())

            # Verify screen is active
            # assert isinstance(pilot.app.screen, MyScreen)
            pass

    @pytest.mark.asyncio
    async def test_required_widgets_exist(self):
        """Verify all required widgets are present."""
        app = StyreneApp()
        async with app.run_test() as pilot:
            # TODO: Push your screen
            # await pilot.app.push_screen(MyScreen())

            # Check for required widgets
            # assert pilot.app.screen.query_one("#widget-id")
            pass

    @pytest.mark.asyncio
    async def test_initial_state(self):
        """Verify screen initializes with correct state."""
        app = StyreneApp()
        async with app.run_test() as pilot:
            # TODO: Push your screen and verify initial state
            pass

    @pytest.mark.asyncio
    async def test_button_interactions(self):
        """Test button clicks trigger expected actions."""
        app = StyreneApp()
        async with app.run_test() as pilot:
            # TODO: Test button interactions
            # await pilot.click("#button-id")
            # Verify expected behavior
            pass

    @pytest.mark.asyncio
    async def test_input_validation(self):
        """Test input field validation."""
        app = StyreneApp()
        async with app.run_test() as pilot:
            # TODO: Test input validation
            # input_widget = pilot.app.query_one("#input-id", Input)
            # input_widget.value = "invalid"
            # await pilot.pause()
            # assert input_widget.has_class("-invalid")
            pass

    @pytest.mark.asyncio
    async def test_keyboard_navigation(self):
        """Test keyboard shortcuts and navigation."""
        app = StyreneApp()
        async with app.run_test() as pilot:
            # TODO: Test keyboard interactions
            # await pilot.press("escape")
            # Verify navigation or action occurred
            pass

    @pytest.mark.asyncio
    async def test_error_handling(self):
        """Test screen handles errors gracefully."""
        app = StyreneApp()
        async with app.run_test() as pilot:
            # TODO: Trigger error conditions
            # Verify error is displayed or handled
            pass

    def test_css_styling_exists(self):
        """Verify CSS classes are defined in stylesheet."""
        from pathlib import Path

        css_file = Path("src/styrene/styles/imperial_crt.tcss")
        content = css_file.read_text()

        # TODO: Check for screen-specific CSS
        # assert ".my-screen-class" in content
        # assert "#my-widget-id" in content
        pass


# Manual Testing Checklist (run after automated tests pass):
"""
[ ] Screen renders correctly at 80x24 terminal size
[ ] Screen renders correctly at 200x60 terminal size
[ ] All text is readable with Imperial CRT theme
[ ] Borders and spacing look correct
[ ] Tab navigation works between interactive elements
[ ] Mouse clicks register on all buttons
[ ] Escape key exits/navigates back
[ ] All keybindings work as documented
[ ] Screen handles empty/no data state
[ ] Screen handles maximum data gracefully
[ ] Error messages display clearly
[ ] Loading states are visible
"""
