from pathlib import Path

from click.testing import CliRunner
from unittest.mock import patch

from browser_cli.cli import main, _project_version


def _expected_version() -> str:
    pyproject = Path(__file__).resolve().parent.parent / "pyproject.toml"
    for line in pyproject.read_text(encoding="utf-8").splitlines():
        if line.startswith("version = "):
            return line.split('"')[1]
    raise AssertionError("version not found in pyproject.toml")


def test_short_version_option():
    result = CliRunner().invoke(main, ["-V"])
    assert result.exit_code == 0
    assert result.output.strip() == _expected_version()


def test_long_version_option():
    result = CliRunner().invoke(main, ["--version"])
    assert result.exit_code == 0
    assert result.output.strip() == _expected_version()


def test_project_version_falls_back_to_installed_package_metadata():
    with patch("browser_cli.cli.Path.read_text", side_effect=OSError), patch(
        "browser_cli.cli.package_version", return_value="9.9.9"
    ):
        assert _project_version() == "9.9.9"