from __future__ import annotations

import pytest

from tests.conftest import build_test_vibe_app
from vibe.cli.textual_ui.widgets.chat_input import ChatInputContainer, ChatTextArea


@pytest.mark.asyncio
async def test_shift_backspace_deletes_character_like_backspace() -> None:
    app = build_test_vibe_app()
    async with app.run_test() as pilot:
        await pilot.pause(0.1)

        text_area = app.query_one(ChatTextArea)
        text_area.focus()
        await pilot.pause(0.1)

        await pilot.press("a", "b", "c")
        await pilot.pause(0.1)
        assert app.query_one(ChatInputContainer).value == "abc"

        await pilot.press("shift+backspace")
        await pilot.pause(0.1)

        assert app.query_one(ChatInputContainer).value == "ab"


@pytest.mark.asyncio
async def test_shift_delete_deletes_character_like_delete() -> None:
    app = build_test_vibe_app()
    async with app.run_test() as pilot:
        await pilot.pause(0.1)

        text_area = app.query_one(ChatTextArea)
        text_area.focus()
        await pilot.pause(0.1)

        await pilot.press("a", "b", "c", "left")
        await pilot.pause(0.1)
        assert app.query_one(ChatInputContainer).value == "abc"

        await pilot.press("shift+delete")
        await pilot.pause(0.1)

        assert app.query_one(ChatInputContainer).value == "ab"


@pytest.mark.asyncio
async def test_shift_backspace_resets_mode_when_empty() -> None:
    app = build_test_vibe_app()
    async with app.run_test() as pilot:
        await pilot.pause(0.1)

        text_area = app.query_one(ChatTextArea)
        text_area.focus()
        text_area.set_mode("!")
        await pilot.pause(0.1)
        assert text_area.input_mode == "!"

        await pilot.press("shift+backspace")
        await pilot.pause(0.1)

        assert text_area.input_mode == ">"