"""엔티티 위키 페이지 검증 (수정사항 8번) + 외부 호출 필터."""
from __future__ import annotations

import pytest
from fastapi.testclient import TestClient

from config.settings import settings
from index.db import connect
from wiki_out.entities import write_entity_wiki
from wiki_out.merge import get_scalar, split_frontmatter
from wiki_out.okf_writer import write_program_wiki
from wiki_out.validate import validate

PAYLOAD = {
    "MAIN_PROGRAM": "ZENT_A",
    "DESCRIPTION": "엔티티 테스트",
    "INCLUDE_PROGRAM": [{"INCLUDE": "ZENT_A", "SOURCE_CODE": (
        "REPORT zent_a.\n"
        "START-OF-SELECTION.\n"
        "  PERFORM load.\n"
        "FORM load.\n"
        "  SELECT * FROM t001 INTO TABLE gt_t001.\n"
        "  INSERT zfit_log FROM ls_log.\n"
        "  CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'\n"
        "    EXPORTING input = lv_in\n"
        "    IMPORTING output = lv_out.\n"
        "  CALL FUNCTION 'Z_REMOTE_POST' DESTINATION 'RFCDEST'\n"
        "    EXPORTING i_x = lv_x.\n"
        "  CALL SCREEN 100.\n"
        "  lv_style = cl_gui_alv_grid=>mc_style_enabled.\n"
        "ENDFORM."
    )}],
}


@pytest.fixture()
def wiki(tmp_path, monkeypatch):
    import query.api as api

    monkeypatch.setattr(settings, "database_url", f"sqlite:///{tmp_path / 'index.db'}")
    monkeypatch.setattr(settings, "data_normalized", tmp_path / "normalized")
    monkeypatch.setattr(settings, "data_parsed", tmp_path / "parsed")
    monkeypatch.setattr(settings, "wiki_dir", tmp_path / "wiki")
    monkeypatch.setattr(settings, "llm_base_url", "")
    c = TestClient(api.app)
    assert c.post("/ingest", json=PAYLOAD).json()["status"] == "loaded"
    con = connect()
    write_program_wiki("ZENT_A", con=con, wiki_dir=tmp_path / "wiki")
    stats = write_entity_wiki(con, tmp_path / "wiki")
    con.close()
    return tmp_path / "wiki", stats


def test_table_pages_split_read_and_write(wiki):
    root, stats = wiki
    assert stats["tables"] >= 2

    read_page = (root / "tables" / "T001.md").read_text(encoding="utf-8")
    fm, body = split_frontmatter(read_page)
    assert get_scalar(fm, "type") == "abap-table"
    assert get_scalar(fm, "x-read-programs") == "1"
    assert get_scalar(fm, "x-write-programs") == "0"
    assert "[ZENT_A](/programs/ZENT_A.md)" in body

    write_page = (root / "tables" / "ZFIT_LOG.md").read_text(encoding="utf-8")
    fm2, body2 = split_frontmatter(write_page)
    assert get_scalar(fm2, "x-write-programs") == "1"
    assert "## 쓰기 (1개 프로그램)" in body2


def test_function_pages_list_callers_and_mark_rfc(wiki):
    root, stats = wiki
    assert stats["functions"] >= 2

    fm_page = (root / "functions" / "CONVERSION_EXIT_ALPHA_INPUT.md").read_text(encoding="utf-8")
    fm, body = split_frontmatter(fm_page)
    assert get_scalar(fm, "type") == "abap-function"
    assert get_scalar(fm, "x-caller-programs") == "1"
    assert "[ZENT_A](/programs/ZENT_A.md)" in body

    rfc_page = (root / "functions" / "Z_REMOTE_POST.md").read_text(encoding="utf-8")
    fm_rfc, body_rfc = split_frontmatter(rfc_page)
    assert "RFC" in (get_scalar(fm_rfc, "tags") or "")
    assert "call_function_rfc" in body_rfc


def test_constants_and_screen_numbers_are_not_function_pages(wiki):
    """`CL_GUI_ALV_GRID=>MC_STYLE_ENABLED`(상수)와 `CALL SCREEN 100`(화면번호)은 호출이 아니다."""
    root, _ = wiki
    names = {p.stem for p in (root / "functions").glob("*.md")}
    assert not any("MC_STYLE" in n for n in names), names
    assert "100" not in names, names


def test_program_x_calls_excludes_constants_and_screens(wiki):
    root, _ = wiki
    fm, _ = split_frontmatter((root / "programs" / "ZENT_A.md").read_text(encoding="utf-8"))
    calls = get_scalar(fm, "x-calls") or ""
    assert "CONVERSION_EXIT_ALPHA_INPUT" in calls and "Z_REMOTE_POST" in calls
    assert "MC_STYLE_ENABLED" not in calls, calls
    assert '"100"' not in calls, calls


def test_manifest_lists_entities_and_hierarchy(wiki):
    root, _ = wiki
    text = (root / "index.md").read_text(encoding="utf-8")
    assert "[tables/](/tables/)" in text and "[functions/](/functions/)" in text
    assert "## 계층 — 모듈 → 패키지 → 프로그램" in text
    assert "[ZENT_A](/programs/ZENT_A.md)" in text


def test_entity_pages_pass_okf_validation(wiki):
    root, _ = wiki
    assert validate(root) == []


def test_entity_pages_are_idempotent(wiki):
    """재실행해도 사람 교정이 없으면 같은 내용(생성 시각 제외)이어야 한다."""
    root, _ = wiki
    page = root / "tables" / "T001.md"
    before = page.read_text(encoding="utf-8")
    con = connect()
    write_entity_wiki(con, root)
    con.close()
    after = page.read_text(encoding="utf-8")
    strip = lambda t: "\n".join(l for l in t.splitlines() if not l.startswith("generated:"))
    assert strip(before) == strip(after)