import re
import subprocess
import sys
from pathlib import Path

import pytest

SCRIPT = Path(__file__).resolve().parents[1] / "scripts" / "generate_secret.py"


def run_script(*args: str) -> subprocess.CompletedProcess[str]:
    return subprocess.run(
        [sys.executable, str(SCRIPT), *args], capture_output=True, text=True, check=False
    )


def test_generates_named_secret():
    name = "LEAD_SCORING_WEBHOOK_SIGNING_SECRET"
    first = run_script(name)
    second = run_script(name)
    assert first.returncode == second.returncode == 0
    assert first.stderr == second.stderr == ""
    for result in (first, second):
        assert re.fullmatch(rf"{name}=[0-9a-f]{{64}}\n", result.stdout)
    assert first.stdout != second.stdout


@pytest.mark.parametrize("name", ["", "1SECRET", "SECRET=value", "BAD-NAME", "A\nB"])
def test_rejects_invalid_variable_names(name: str):
    result = run_script(name)
    assert result.returncode == 2
    assert result.stdout == ""


def test_requires_variable_name():
    result = run_script()
    assert result.returncode == 2
    assert result.stdout == ""