"""Verify every .sexpr and .sexp file in the repo parses without errors."""

import os
import pytest

from shared.sexp.parser import parse_all


def _collect_sexp_files():
    """Find all .sexpr and .sexp files under the repo root."""
    repo = os.path.dirname(os.path.dirname(os.path.dirname(os.path.dirname(
        os.path.abspath(__file__)
    ))))
    files = []
    for dirpath, _dirs, filenames in os.walk(repo):
        if "node_modules" in dirpath or ".git" in dirpath or "artdag" in dirpath:
            continue
        for fn in filenames:
            if fn.endswith((".sexpr", ".sexp")):
                files.append(os.path.join(dirpath, fn))
    return sorted(files)


_SEXP_FILES = _collect_sexp_files()


@pytest.mark.parametrize("path", _SEXP_FILES, ids=[
    os.path.relpath(p) for p in _SEXP_FILES
])
def test_parse(path):
    """Each sexp file should parse without errors."""
    with open(path) as f:
        source = f.read()
    exprs = parse_all(source)
    assert len(exprs) > 0, f"{path} produced no expressions"