"""표 쪽 나눔 — `ui_template_sheet_ops.ts` `pagePlan` 을 Node 로 바로 돌려 봄.

격자(`_render`)가 쪽을 이 계획대로 그림.

줄 120 문서 → project 쪽 3(50 · 50 · 20) · 쪽마다 머리(격자가 쪽마다 thead) · 합계는 마지막 쪽만 ·
「전구간」 줄은 맨 위 · master 는 한 쪽.
"""

from __future__ import annotations

import json
import shutil
import subprocess
from pathlib import Path

import pytest

ROOT = Path(__file__).resolve().parents[2]
OPS = ROOT / "ui_template" / "sheet" / "ui_template_sheet_ops.ts"

pytestmark = pytest.mark.skipif(shutil.which("node") is None, reason="node 가 없음")

SCRIPT = """
const { pagePlan } = await import(process.argv[1]);
const doc = JSON.parse(process.argv[2]);
const out = {};
for (const mode of ["project", "master"]) {
  out[mode] = pagePlan(doc, mode).map((p) => ({
    ids: p.rows.map((r) => r.id), first: p.first, totals: p.totals,
  }));
}
console.log(JSON.stringify(out));
"""


def _plan(doc: dict) -> dict:
    result = subprocess.run(
        [
            "node",
            "--experimental-strip-types",
            "--no-warnings",
            "--input-type=module",
            "-e",
            SCRIPT,
            OPS.as_uri(),
            json.dumps(doc, ensure_ascii=False),
        ],
        capture_output=True,
        text=True,
        encoding="utf-8",
        timeout=60,
    )
    assert result.returncode == 0, result.stderr
    return json.loads(result.stdout)


def _doc(n: int, **head) -> dict:
    rows = [{"id": f"p{i}", "값": {}} for i in range(1, n)]
    rows.insert(7, {"id": "all", "값": {}, "고정": "전구간"})  # 문서 가운데 있어도 맨 위로
    return {"양식": "시험", "종류": "표", "판": 1, "열": [], "줄": rows, **head}


def test_120_rows_make_three_pages_totals_last():
    plan = _plan(_doc(120))["project"]
    assert [len(p["ids"]) for p in plan] == [50, 50, 20]
    assert [p["first"] for p in plan] == [1, 51, 101]
    assert [p["totals"] for p in plan] == [False, False, True]
    assert plan[0]["ids"][0] == "all"
    assert sum((p["ids"] for p in plan), []).count("all") == 1


def test_page_rows_from_doc_and_master_single_page():
    got = _plan(_doc(55, 쪽줄=20))
    assert [len(p["ids"]) for p in got["project"]] == [20, 20, 15]
    assert [len(p["ids"]) for p in got["master"]] == [55]
    assert got["master"][0]["totals"] is True


def test_empty_doc_still_one_page_with_totals():
    plan = _plan({"양식": "시험", "종류": "표", "판": 1, "열": [], "줄": []})["project"]
    assert plan == [{"ids": [], "first": 1, "totals": True}]