"""Guard shell scripts in scripts/ against syntax regressions."""

from __future__ import annotations

import shutil
import subprocess
from pathlib import Path

import pytest

REPO_ROOT = Path(__file__).resolve().parents[2]
SCRIPTS = [
    REPO_ROOT / "scripts" / "sim_cameras.sh",
    REPO_ROOT / "scripts" / "download_mediamtx.sh",
]


@pytest.mark.parametrize("script", SCRIPTS, ids=lambda p: p.name)
def test_script_exists(script: Path) -> None:
    assert script.is_file(), f"missing script: {script}"


@pytest.mark.parametrize("script", SCRIPTS, ids=lambda p: p.name)
def test_bash_syntax(script: Path) -> None:
    result = subprocess.run(
        ["bash", "-n", str(script)],
        capture_output=True,
        text=True,
    )
    assert result.returncode == 0, f"bash -n failed:\n{result.stderr}"


@pytest.mark.parametrize("script", SCRIPTS, ids=lambda p: p.name)
def test_shellcheck(script: Path) -> None:
    if shutil.which("shellcheck") is None:
        pytest.skip("shellcheck not installed")
    result = subprocess.run(
        ["shellcheck", "--severity=warning", str(script)],
        capture_output=True,
        text=True,
    )
    assert result.returncode == 0, f"shellcheck failed:\n{result.stdout}\n{result.stderr}"