from pathlib import Path

import pytest

from infospace_bench import (
    InfospaceError,
    add_artifact,
    create_infospace,
    load_infospace,
)


def test_create_infospace_writes_layout_and_loadable_config(tmp_path: Path) -> None:
    infospace = create_infospace(
        tmp_path,
        "wealth-vsm",
        name="Wealth of Nations through VSM",
        topic_domain="Classical Economics",
    )

    root = tmp_path / "infospaces" / "wealth-vsm"
    assert infospace.root == root
    assert (root / "infospace.yaml").is_file()
    assert (root / "artifacts" / "sources").is_dir()
    assert (root / "artifacts" / "generated").is_dir()
    assert (root / "output" / "evaluations").is_dir()
    assert (root / "output" / "metrics").is_dir()
    assert (root / "reports").is_dir()
    assert (root / "exports").is_dir()

    loaded = load_infospace(root)

    assert loaded.config.slug == "wealth-vsm"
    assert loaded.config.name == "Wealth of Nations through VSM"
    assert loaded.config.topic.domain == "Classical Economics"
    assert loaded.config.topic.sources == "artifacts/sources"
    assert loaded.artifacts == []


def test_create_infospace_rejects_unsafe_slug_with_structured_error(tmp_path: Path) -> None:
    with pytest.raises(InfospaceError) as raised:
        create_infospace(tmp_path, "../outside", name="Nope")

    assert raised.value.code == "invalid_slug"
    assert raised.value.detail["slug"] == "../outside"


def test_load_infospace_reports_missing_config(tmp_path: Path) -> None:
    root = tmp_path / "infospaces" / "empty"
    root.mkdir(parents=True)

    with pytest.raises(InfospaceError) as raised:
        load_infospace(root)

    assert raised.value.code == "missing_config"
    assert "infospace.yaml" in raised.value.message


def test_add_artifact_copies_file_and_updates_manifest(tmp_path: Path) -> None:
    create_infospace(tmp_path, "pilot", name="Pilot Infospace")
    source = tmp_path / "chapter.md"
    source.write_text("# Chapter\n\nSource text.\n", encoding="utf-8")

    artifact = add_artifact(
        tmp_path / "infospaces" / "pilot",
        source,
        kind="source",
        title="Chapter 1",
    )

    assert artifact.id == "source/chapter.md"
    assert artifact.path == "artifacts/sources/chapter.md"
    assert (tmp_path / "infospaces" / "pilot" / artifact.path).read_text(
        encoding="utf-8"
    ).startswith("# Chapter")

    loaded = load_infospace(tmp_path / "infospaces" / "pilot")
    assert [item.id for item in loaded.artifacts] == ["source/chapter.md"]
    assert loaded.artifacts[0].title == "Chapter 1"


def test_add_artifact_rejects_duplicate_manifest_entry(tmp_path: Path) -> None:
    create_infospace(tmp_path, "pilot", name="Pilot Infospace")
    source = tmp_path / "chapter.md"
    source.write_text("# Chapter\n", encoding="utf-8")
    add_artifact(tmp_path / "infospaces" / "pilot", source, kind="source")

    with pytest.raises(InfospaceError) as raised:
        add_artifact(tmp_path / "infospaces" / "pilot", source, kind="source")

    assert raised.value.code == "duplicate_artifact"