import pytest

from ingestion.cli import build_parser


def test_run_subcommand_parses_required_pdf_arg():
    parser = build_parser()
    args = parser.parse_args(["run", "--pdf", "some.pdf"])
    assert args.command == "run"
    assert args.pdf == "some.pdf"
    assert args.out == "data/processed/monographs.jsonl"


def test_run_subcommand_accepts_custom_out():
    parser = build_parser()
    args = parser.parse_args(["run", "--pdf", "a.pdf", "--out", "b.jsonl"])
    assert args.out == "b.jsonl"


def test_run_requires_pdf_arg():
    parser = build_parser()
    with pytest.raises(SystemExit):
        parser.parse_args(["run"])


@pytest.mark.parametrize("command", ["visual-diff", "scaffold-golden"])
def test_not_yet_implemented_commands_raise_explicitly(command):
    parser = build_parser()
    args = parser.parse_args([command])
    with pytest.raises(NotImplementedError):
        args.func(args)


def test_run_reports_missing_pdf_file(tmp_path, capsys):
    parser = build_parser()
    missing = tmp_path / "does_not_exist.pdf"
    args = parser.parse_args(["run", "--pdf", str(missing)])
    exit_code = args.func(args)
    assert exit_code == 1
    assert "not found" in capsys.readouterr().err


def test_validate_reports_missing_pdf_file(tmp_path, capsys):
    parser = build_parser()
    missing = tmp_path / "does_not_exist.pdf"
    args = parser.parse_args(["validate", "--pdf", str(missing)])
    exit_code = args.func(args)
    assert exit_code == 1
    assert "not found" in capsys.readouterr().err