"""Issue #60, Linux check: the defects the opencode 2.x check on Linux found.

1. The 2.x home screen's placeholder (`Ask anything… "<example>"`, cut
   without its closing quote in a narrow box) is not typed input.
"""

from __future__ import annotations

import re
import sys
from pathlib import Path

import pytest

REPO_ROOT = Path(__file__).resolve().parent.parent
SKILLS = REPO_ROOT / ".agents" / "skills"
PANES = REPO_ROOT / "tests" / "fixtures" / "panes"
if str(SKILLS) not in sys.path:
    sys.path.insert(0, str(SKILLS))

from lib_py import stall_watch  # noqa: E402
from lib_py.agents.input_region import extract_input_region  # noqa: E402
from lib_py.agents.registry import get_adapter  # noqa: E402

# 140 columns (herdr capture) and 60 columns, where the example loses its
# closing quote.
HOME_SCREENS = ("opencode_idle_2x_home.txt", "opencode_idle_2x_home_narrow.txt")
PLACEHOLDER_LINE = re.compile(r'^(\s*┃\s*)Ask anything… ".*$', re.M)


def _pane(name: str) -> str:
    return "".join(l for l in (PANES / name).read_text(encoding="utf-8").splitlines(True) if not l.startswith("# "))


# ---------------------------------------------------------------------------
# 1. the 2.x home screen's placeholder
# ---------------------------------------------------------------------------
@pytest.mark.parametrize("name", HOME_SCREENS)
def test_the_2x_home_screen_reads_as_an_empty_box(name):
    assert extract_input_region(_pane(name), "opencode") == ""


def test_the_narrow_capture_has_a_cut_example():
    # The case the pattern must keep: no closing quote on screen.
    (line,) = [l for l in _pane(HOME_SCREENS[1]).splitlines() if "Ask anything" in l]
    assert '"' in line and not line.rstrip().endswith('"')


def test_the_narrow_screen_stops_at_its_status_line_and_reads_ready():
    text = _pane(HOME_SCREENS[1])
    # Under ~60 columns the status line drops `auto`: `Build · <model>`.
    assert re.search(r"^\s*┃\s*Build · ", text, re.M) and "Build auto" not in text
    assert re.search(get_adapter("opencode").ready_tokens, text)


@pytest.mark.parametrize("name", HOME_SCREENS)
@pytest.mark.parametrize("typed", [
    "please continue",
    'Ask anything… "x" and fix it',
    "Ask anything about the build",
    'Ask anything… "a"b',
])
def test_typed_text_is_read_as_typed(name, typed):
    text, n = PLACEHOLDER_LINE.subn(lambda m: m.group(1) + typed, _pane(name), count=1)
    assert n == 1
    assert extract_input_region(text, "opencode") == typed


def test_the_1x_capture_still_reads_empty():
    assert extract_input_region(_pane("opencode_idle.txt"), "opencode") == ""


@pytest.mark.parametrize("name", HOME_SCREENS)
def test_stall_watch_sees_the_2x_home_box_empty(name, monkeypatch):
    src = stall_watch.HerdrSource("t", "opencode")
    monkeypatch.setattr(src, "_herdr", lambda *args: _pane(name))
    assert src.input_empty() is True


def test_other_adapters_have_no_placeholder_pattern():
    for agent in ("claude", "agy", "grok", "codex", "hermes"):
        assert get_adapter(agent).input_placeholder_pattern is None, agent