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"""Configuration compatibility for native LLM text output."""

from __future__ import annotations

from typing import Any

import pytest

from zensical.config import ConfigurationError, _convert_plugins


def convert(
    value: Any, site_url: str | None = "https://example.org/docs/"
) -> dict[str, Any]:
    """Normalize plugin settings with the project fields they use."""
    project = {
        "site_url": site_url,
        "extra": {"polyfills": []},
        "root_dir": ".",
    }
    return _convert_plugins(value, project)["llmstxt"]["config"]


def test_plugin_presence_controls_generation() -> None:
    assert convert([])["enabled"] is False
    assert convert(["llmstxt"])["enabled"] is True
    assert (
        convert({"llmstxt": {"enabled": False}}, site_url=None)["enabled"]
        is False
    )


def test_sections_preserve_order_patterns_and_descriptions() -> None:
    settings = convert(
        {
            "llmstxt": {
                "base_url": "https://other.org/v1",
                "markdown_description": "Long **description**.",
                "full_output": "ai/full.txt",
                "sections": {
                    "Z first": [{"index.md": "Home"}, "guide/*.md"],
                    "A second": ["other.md"],
                },
            }
        }
    )

    assert settings["autoclean"] is True
    assert settings["base_url"] == "https://other.org/v1"
    assert settings["full_output"] == "ai/full.txt"
    assert [section["title"] for section in settings["sections"]] == [
        "Z first",
        "A second",
    ]
    inputs = settings["sections"][0]["inputs"]
    assert inputs[0] == {
        "pattern": "index.md",
        "description": "Home",
        "expression": None,
    }
    assert inputs[1]["pattern"] == "guide/*.md"
    assert inputs[1]["expression"].startswith(r"\A(?s:")


@pytest.mark.parametrize(
    "preprocess",
    [
        None,
        "custom.py",
        False,
        42,
        ["custom.py"],
        {"function": "preprocess"},
        object(),
    ],
)
def test_silently_ignores_preprocess(
    preprocess: Any,
    capsys: pytest.CaptureFixture[str],
    caplog: pytest.LogCaptureFixture,
) -> None:
    expected = convert(["llmstxt"])

    settings = convert({"llmstxt": {"preprocess": preprocess}})

    assert settings == expected
    captured = capsys.readouterr()
    assert captured.out == ""
    assert captured.err == ""
    assert not caplog.records


@pytest.mark.parametrize(
    ("settings", "message"),
    [
        ({"enabled": "yes"}, "enabled must be a boolean"),
        ({"autoclean": 1}, "autoclean must be a boolean"),
        ({"base_url": 42}, "base_url must be a string"),
        ({"markdown_description": []}, "markdown_description must be a string"),
        ({"full_output": True}, "full_output must be a string"),
        ({"full_output": "../full.txt"}, "relative file path"),
        ({"full_output": "/full.txt"}, "relative file path"),
        ({"full_output": "full/../file.txt"}, "relative file path"),
        ({"full_output": "llms.txt"}, "must differ from llms.txt"),
        ({"sections": []}, "sections must be a mapping"),
        ({"sections": {"Pages": "index.md"}}, "map strings to lists"),
        ({"sections": {"Pages": [False]}}, "single-entry mappings"),
        (
            {"sections": {"Pages": [{"a.md": "A", "b.md": "B"}]}},
            "single-entry mappings",
        ),
        (
            {"sections": {"Pages": [{"a.md": 1}]}},
            "descriptions must be strings",
        ),
        ({"sections": {"Pages": [""]}}, "non-empty strings"),
        ({"unknown": True}, "unknown llmstxt option"),
    ],
)
def test_invalid_settings_report_configuration_errors(
    settings: dict[str, Any], message: str
) -> None:
    with pytest.raises(ConfigurationError, match=message):
        convert({"llmstxt": settings})


def test_enabled_plugin_requires_site_url() -> None:
    with pytest.raises(ConfigurationError, match="requires site_url"):
        convert(["llmstxt"], site_url=None)