"""The Textual app starts, lists a library, opens a book and leaves it again."""
import asyncio

from diora_tui.app import DioraTuiApp
from diora_tui.reader_screen import ReaderScreen


def test_open_read_and_leave(epub, tmp_path):
    lib = tmp_path / "lib"
    lib.mkdir()
    path = epub(["<h1>Anfang</h1>" + "".join(f"<p>Absatz {i} " + "wort " * 40 + "</p>" for i in range(60))])
    path.rename(lib / path.name)

    async def run():
        app = DioraTuiApp(lib)
        async with app.run_test(size=(100, 30)) as pilot:
            await pilot.pause()
            await pilot.press("enter")
            for _ in range(50):
                await pilot.pause(0.1)
                if isinstance(app.screen, ReaderScreen):
                    break
            assert isinstance(app.screen, ReaderScreen)
            await pilot.pause(0.5)
            await pilot.press("j", "j", "j", "n")
            await pilot.press("escape")
            await pilot.pause()
            assert not isinstance(app.screen, ReaderScreen)

    asyncio.run(run())