"""Tests for template family registry (FR-600)."""

from __future__ import annotations

from pathlib import Path

import pytest

from markidocx.templates import FamilyRegistry, RegistrationError


class TestFamilyRegistry:
    def test_lists_three_builtin_families(self) -> None:
        registry = FamilyRegistry()
        families = registry.list_families()
        names = {f.name for f in families}
        assert names == {"article", "book", "website"}

    def test_get_existing_family(self) -> None:
        registry = FamilyRegistry()
        info = registry.get("article")
        assert info is not None
        assert info.name == "article"
        assert info.description

    def test_get_missing_family_returns_none(self) -> None:
        registry = FamilyRegistry()
        assert registry.get("nonexistent") is None

    def test_register_invalid_path_raises(self, tmp_path: Path) -> None:
        registry = FamilyRegistry()
        with pytest.raises(RegistrationError, match="not found"):
            registry.register(tmp_path / "missing.docx", "custom")

    def test_register_non_docx_raises(self, tmp_path: Path) -> None:
        f = tmp_path / "template.txt"
        f.write_text("not a docx")
        registry = FamilyRegistry()
        with pytest.raises(RegistrationError, match=".docx"):
            registry.register(f, "custom")

    def test_create_document_for_each_family(self) -> None:
        registry = FamilyRegistry()
        for family in ("article", "book", "website"):
            doc = registry.create_document(family)
            assert doc is not None

    def test_create_document_unknown_family_falls_back(self) -> None:
        registry = FamilyRegistry()
        doc = registry.create_document("unknown")
        assert doc is not None