import os
import subprocess
import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]


def _run_browser_use_cli(*args: str) -> subprocess.CompletedProcess[str]:
	env = os.environ.copy()
	env['PYTHONPATH'] = os.pathsep.join(part for part in (str(ROOT), env.get('PYTHONPATH', '')) if part)
	return subprocess.run(
		[sys.executable, '-m', 'browser_use.cli', *args],
		cwd=ROOT,
		env=env,
		capture_output=True,
		text=True,
		timeout=20,
	)


def test_browser_use_doctor_help_prints_browser_use_usage():
	result = _run_browser_use_cli('doctor', '--help')

	assert result.returncode == 0
	assert result.stdout == 'usage: browser-use doctor [--fix-snap]\n'
	assert result.stderr == ''


def test_normalize_captured_cli_output_handles_string_system_exit(capsys):
	from browser_use.cli import _normalize_captured_cli_output

	def exits_with_string(_argv):
		raise SystemExit('browser-harness failed')

	assert _normalize_captured_cli_output(exits_with_string, []) == 1
	captured = capsys.readouterr()
	assert captured.out == ''
	assert captured.err == 'browser-use failed\n'


def test_browser_use_tui_is_deprecated_alias(monkeypatch, capsys):
	import browser_use.cli as browser_use_cli

	monkeypatch.setattr(browser_use_cli, 'main', lambda: 0)

	assert browser_use_cli.browser_use_tui_main() == 0
	assert capsys.readouterr().err == 'browser-use-tui is deprecated; use browser-use instead.\n'