from pathlib import Path

import pytest

from triggershell.config import ConfigError, preflight_check


def write(tmp_path: Path, content: str) -> Path:
    path = tmp_path / "triggershell.config.yaml"
    path.write_text(content)
    return path


def test_missing_file_raises(tmp_path: Path) -> None:
    with pytest.raises(ConfigError, match="not found"):
        preflight_check(tmp_path / "missing.yaml")


def test_invalid_yaml_raises(tmp_path: Path) -> None:
    path = write(tmp_path, "scripts: [this is not: valid: yaml")
    with pytest.raises(ConfigError, match="parse YAML"):
        preflight_check(path)


def test_non_mapping_root_raises(tmp_path: Path) -> None:
    path = write(tmp_path, "- just\n- a\n- list\n")
    with pytest.raises(ConfigError, match="mapping"):
        preflight_check(path)


def test_empty_file_is_ok(tmp_path: Path) -> None:
    path = write(tmp_path, "")
    data = preflight_check(path)
    assert data == {}


def test_script_missing_id_raises(tmp_path: Path) -> None:
    path = write(tmp_path, "scripts:\n  - name: no id here\n")
    with pytest.raises(ConfigError, match="missing a non-empty 'id'"):
        preflight_check(path)


def test_duplicate_script_id_raises(tmp_path: Path) -> None:
    path = write(
        tmp_path,
        """
scripts:
  - id: dup
    name: One
  - id: dup
    name: Two
""",
    )
    with pytest.raises(ConfigError, match="duplicate script id"):
        preflight_check(path)


def test_valid_minimal_config_passes(tmp_path: Path) -> None:
    path = write(
        tmp_path,
        """
scripts:
  - id: hello
    name: Hello
    command: echo
""",
    )
    data = preflight_check(path)
    assert len(data["scripts"]) == 1
    assert data["scripts"][0]["id"] == "hello"