"""Grader behaviour on malformed agent output: a bad file scores 0, it never raises out of the server."""

import os
import sys
import tempfile

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from terminal_desk.core.grading import run_checks  # noqa: E402
from terminal_desk.families.base import Artifact  # noqa: E402

CSV_CHECKS = Artifact(
    path="out.csv", kind="checks", parse="csv",
    checks=[("test_header", lambda p: p["header"] == ["id", "value"]), ("test_one_row", lambda p: len(p["rows"]) == 1)],
)


def _run(content: str) -> dict[str, bool]:
    with tempfile.TemporaryDirectory() as root:
        os.chmod(root, 0o755)
        with open(os.path.join(root, "out.csv"), "w") as fh:
            fh.write(content)
        return run_checks(root, CSV_CHECKS)


def test_well_formed_csv_passes():
    assert _run("id,value\n1,2\n") == {"test_file_exists": True, "test_header": True, "test_one_row": True}


def test_row_with_extra_cells_fails_every_check():
    # csv.DictReader puts the extra cells in a list under None; the grader must fail, not raise (seen in the
    # v3 screen: sec3_fw_verdicts-L2 answered with a third column and the episode died with EXECUTION_ERROR).
    assert _run("id,value\n1,2,3\n") == {"test_file_exists": True, "test_header": False, "test_one_row": False}


def test_row_with_missing_cells_fails_every_check():
    assert _run("id,value\n1\n") == {"test_file_exists": True, "test_header": False, "test_one_row": False}