"""478-2 문서 사이트 검사 — 묶음 배정 · 손글 함수 · 함수 화면 도구 대 추출 · mkdocs --strict.

가짜 추출(fixtures/478_docs)은 늘 돎 · 진짜 추출(docs/_data)은 있을 때만.
"""

import json
import re
import sys
import warnings
from pathlib import Path

import pytest

ROOT = Path(__file__).resolve().parents[2]
sys.path.insert(0, str(ROOT / "docs" / "tools"))

import build  # noqa: E402
import group  # noqa: E402

FIXTURE = Path(__file__).parent / "fixtures" / "478_docs"
REAL = ROOT / "docs" / "_data"


def make_site(data_dir: Path, out: Path) -> tuple[build.Site, dict]:
    site = build.Site(build.load_data(data_dir), group.load_rules(), out)
    return site, site.build()


def shown_anchors(site: build.Site) -> set[str]:
    text = "".join(p.read_text(encoding="utf-8") for p in (site.src).glob("*/*.md"))
    return set(re.findall(r"\{ #(f-[0-9a-f]{10}) \}", text))


def typedoc_functions(out: Path) -> set[tuple[str, str]]:
    project = json.loads((out / "typedoc.json").read_text(encoding="utf-8"))
    modules = [m for m in project.get("children", []) if m["kind"] == 2] or [project]
    return {
        (c["sources"][0]["fileName"], c["name"])
        for m in modules
        for c in m.get("children", [])
        if c["kind"] == 64
    }


@pytest.fixture(scope="module")
def fake(tmp_path_factory):
    return make_site(FIXTURE, tmp_path_factory.mktemp("fake"))


@pytest.fixture(scope="module")
def real(tmp_path_factory):
    if not (REAL / "functions.json").exists():
        pytest.skip("추출 없음 — docs/_data")
    return make_site(REAL, tmp_path_factory.mktemp("real"))


def test_assign_rules():
    data = build.load_data(FIXTURE)
    page = group.load_rules()["pages"][0]
    gid = {
        f["name"]: g
        for g, fns in group.assign(data["functions"], data["registry"], page["groups"]).items()
        for f in fns
    }
    assert gid["stationKey"] == "stations"  # 등록부 stations.key
    assert gid["station_key"] == "stations"  # 등록부 pair
    assert gid["seatBornNodes"] == "profile"  # 등록부 profile.seat
    assert gid["median"] == "profile"  # 파일 B05_Profile_Grade_*
    assert gid["node_edits"] == "route_edit"  # 파일 B05_Profile_Route_NodeEdits
    assert gid["atomic_write_bytes"] == group.NONE


def test_fake_site(fake):
    site, rep = fake
    assert shown_anchors(site) == {build.anchor(f["id"]) for f in site.fns}
    assert rep["ungrouped"] == 2
    assert rep["session_keys"] == 1 and rep["api"] == 1
    assert "stations" in rep["stale_groups"]  # 손글 지문 ≠ 가짜 목록
    build.build_site(site.out, strict=True)


def test_fake_tools_match_extract(fake):
    site, _ = fake
    ts = {(f["file"], f["name"]) for f in site.fns if f["lang"] == "ts" and f["exported"]}
    assert typedoc_functions(site.out) == ts
    py = {(f["file"], f["name"]) for f in site.fns if f["lang"] == "py"}
    assert {(file, n) for file, _ in py for n in build.griffe_names(file)} == py


def test_real_hand_refs(real):
    _, rep = real
    assert rep["missing_refs"] == [], "손글이 가리키는 함수가 추출에 없음"


def test_real_every_function_shown(real):
    site, _ = real
    assert shown_anchors(site) == {build.anchor(f["id"]) for f in site.fns}, "조용히 빠진 함수"


def test_real_typedoc_matches_extract(real):
    site, _ = real
    ts = {(f["file"], f["name"]) for f in site.fns if f["lang"] == "ts" and f["exported"]}
    got = typedoc_functions(site.out)
    assert not (ts - got) and not (got - ts), (
        f"추출만 {sorted(ts - got)[:10]} · TypeDoc 만 {sorted(got - ts)[:10]}"
    )


def test_real_griffe_matches_extract(real):
    site, _ = real
    py = {(f["file"], f["name"]) for f in site.fns if f["lang"] == "py"}
    got = {(file, n) for file in {f for f, _ in py} for n in build.griffe_names(file)}
    assert not (py - got) and not (got - py), (
        f"추출만 {sorted(py - got)[:10]} · griffe 만 {sorted(got - py)[:10]}"
    )


def test_real_counts(real):
    _, rep = real
    if rep["undocumented_exports"]:
        warnings.warn(f"설명 없는 export 함수 {len(rep['undocumented_exports'])}")
    if rep["ungrouped"]:
        warnings.warn(f"묶음 없는 함수 {rep['ungrouped']}")
    assert rep["ungrouped"] < rep["functions"]


def test_real_strict_build(real):
    site, _ = real
    build.build_site(site.out, strict=True)