"""Tests for the writable FolderAdapter + positive write conformance (SHARD-WP-0008 T1)."""

import pytest

from shard_wiki.adapters import FolderAdapter, assert_conformant, run_conformance
from shard_wiki.model import NotSupported, Verb


def test_writable_round_trip(tmp_path):
    shard = FolderAdapter("w", tmp_path, writable=True)
    rev_before = shard.current_rev("New")
    assert rev_before is None
    page = shard.write("New", "hello")
    assert page.body == "hello"
    assert shard.read("New").body == "hello"
    assert shard.current_rev("New") is not None


def test_writable_profile_supports_write(tmp_path):
    prof = FolderAdapter("w", tmp_path, writable=True).profile()
    assert prof.supports(Verb.WRITE)


def test_read_only_still_rejects_write(tmp_path):
    (tmp_path / "Home.md").write_text("x", encoding="utf-8")
    with pytest.raises(NotSupported):
        FolderAdapter("ro", tmp_path).write("Home", "y")


def test_conformance_passes_for_writable(tmp_path):
    (tmp_path / "Home.md").write_text("body", encoding="utf-8")
    report = assert_conformant(FolderAdapter("w", tmp_path, writable=True))
    assert report.ok
    assert any(c.name == "write-round-trips" and c.ok for c in report.checks)


def test_conformance_write_probe_is_content_preserving(tmp_path):
    (tmp_path / "Home.md").write_text("keep me", encoding="utf-8")
    shard = FolderAdapter("w", tmp_path, writable=True)
    run_conformance(shard)
    assert shard.read("Home").body == "keep me"  # probe did not alter content