from pathlib import Path

import pytest

from docforge.nav import NavSpec


def test_load_valid_nav_spec(tmp_path: Path):
    nav_yml = tmp_path / "docforge.nav.yml"
    nav_yml.write_text(
        """
home: openapi_first/index.md

groups:
  Core:
    - openapi_first/app.md
    - openapi_first/client.md
  CLI:
    - openapi_first/cli.md
""",
        encoding="utf-8",
    )

    spec = NavSpec.load(nav_yml)

    assert spec.home == "openapi_first/index.md"
    assert "Core" in spec.groups
    assert spec.groups["Core"] == [
        "openapi_first/app.md",
        "openapi_first/client.md",
    ]


def test_missing_file_raises(tmp_path: Path):
    with pytest.raises(FileNotFoundError):
        NavSpec.load(tmp_path / "missing.yml")


def test_invalid_schema_raises(tmp_path: Path):
    nav_yml = tmp_path / "docforge.nav.yml"
    nav_yml.write_text(
        """
groups:
  - not_a_mapping
""",
        encoding="utf-8",
    )

    with pytest.raises(ValueError):
        NavSpec.load(nav_yml)


def test_all_patterns_includes_home_and_groups(tmp_path: Path):
    nav_yml = tmp_path / "docforge.nav.yml"
    nav_yml.write_text(
        """
home: a.md
groups:
  X:
    - b.md
    - c/*.md
""",
        encoding="utf-8",
    )

    spec = NavSpec.load(nav_yml)
    patterns = spec.all_patterns()

    assert "a.md" in patterns
    assert "b.md" in patterns
    assert "c/*.md" in patterns