"""D03 예상 횡단(PLAN 544-1) — TS `logic/D03_PlanAnalysis_Expect.ts` 값 = 파이썬 `compute_cross_design`.

기본 = 리핑암 · 산쪽 절토(모르면 좌) · 일반 측구 · 암 경계 = config 기본 · 계획고 = 측점 중심 지반고.
미교차 = 격자로 넓힌 표본 · 넓힌 표본으로 파이썬이 다시 셈한 값과 같음 · 코리도 측점 꼴.

./venv/Scripts/python.exe -m pytest resources/tester/test_544_1_plan_expect.py -q
"""

from __future__ import annotations

import json
import re
import subprocess
import sys
from pathlib import Path

ROOT = Path(__file__).resolve().parents[2]
if str(ROOT) not in sys.path:
    sys.path.insert(0, str(ROOT))

from B06_Section.B06_Section_Engine_Design import compute_cross_design  # noqa: E402
from config.config_system_design import (  # noqa: E402
    STANDARD_CROSS_SECTION,
    STANDARD_ROCK_BOUNDARY_DEFAULT_OFFSET_M,
)

TS_FILE = ROOT / "D03_PlanAnalysis" / "logic" / "D03_PlanAnalysis_Expect.ts"
TSC = ROOT / "config" / "node_modules" / "typescript" / "bin" / "tsc"

_RUNNER = """
import { readFileSync, writeFileSync } from "node:fs";
import * as expect from "./D03_PlanAnalysis/logic/D03_PlanAnalysis_Expect.js";
const job = JSON.parse(readFileSync(process.argv[2], "utf8"));
const std = { standard: job.standard, rockBoundaryM: job.rock };
// 평면 격자 — z = 100 + slope * y(좌 축 = +y) · 1 m · ±100 m
const n = 201;
const axis = Float64Array.from({ length: n }, (_, i) => i - 100);
const z = new Float64Array(n * n);
for (let iy = 0; iy < n; iy += 1)
  for (let ix = 0; ix < n; ix += 1) z[iy * n + ix] = 100 + job.wideSlope * axis[iy];
const grid = { x: axis, y: axis, z, validBits: new Uint8Array(Math.ceil((n * n) / 8)).fill(255) };
const cross = job.stations.map((s) => expect.expectCross(s, std));
const wide = expect.expectCross(job.wide, std, grid);
const sections = expect.expectSections([...job.stations, job.wide], std, grid);
writeFileSync(process.argv[3], JSON.stringify({ cross, wide, sections }));
"""


def _station(slope: float, uphill: str | None, *, half: float = 20.0) -> dict:
    samples = []
    count = int(half * 2 / 0.5) + 1
    for i in range(count):
        offset = -half + i * 0.5
        z = round(100.0 + slope * offset, 6)
        samples.append(
            {"offset_m": offset, "x": 0.0, "y": offset, "z": z, "elevation_m": z, "valid": True}
        )
    return {
        "chainage_m": 40.0,
        "center_x": 0.0,
        "center_y": 0.0,
        "center_z": 100.0,
        "tangent_xy": [1.0, 0.0],
        "left_xy": [0.0, 1.0],
        "uphill_side": uphill,
        "samples": samples,
    }


_STATIONS = [
    _station(0.30, "left"),
    _station(-0.45, "right"),
    _station(0.05, None),
    {**_station(0.2, "left"), "center_z": None},
]
_WIDE_SLOPE = 0.8


def _run_ts(tmp_path: Path) -> dict:
    out = tmp_path / "js"
    subprocess.run(  # noqa: S603 — 고정 실행 파일
        [
            "node",
            str(TSC),
            str(TS_FILE),
            "--outDir",
            str(out),
            "--rootDir",
            str(ROOT),
            "--module",
            "esnext",
            "--target",
            "es2022",
            "--moduleResolution",
            "bundler",
            "--ignoreConfig",
        ],
        cwd=str(ROOT),
        check=True,
        capture_output=True,
    )
    for emitted in out.rglob("*.js"):
        emitted.write_text(
            re.sub(r'(from\s+"\.\.?/[^"]+)"', r'\1.js"', emitted.read_text(encoding="utf-8")),
            encoding="utf-8",
        )
    (out / "runner.mjs").write_text(_RUNNER, encoding="utf-8")
    job = tmp_path / "job.json"
    result = tmp_path / "out.json"
    job.write_text(
        json.dumps(
            {
                "standard": STANDARD_CROSS_SECTION,
                "rock": STANDARD_ROCK_BOUNDARY_DEFAULT_OFFSET_M,
                "stations": _STATIONS,
                "wide": _station(_WIDE_SLOPE, "left"),
                "wideSlope": _WIDE_SLOPE,
            }
        ),
        encoding="utf-8",
    )
    subprocess.run(  # noqa: S603
        ["node", str(out / "runner.mjs"), str(job), str(result)],
        cwd=str(ROOT),
        check=True,
        capture_output=True,
    )
    return json.loads(result.read_text(encoding="utf-8"))


def _python(samples: list[dict], elevation: float, uphill: str | None) -> dict:
    return compute_cross_design(
        samples,
        elevation,
        ground_type="ripping_rock",
        section_mode=f"{uphill or 'left'}_cut",
        ditch_type="standard",
        standard=STANDARD_CROSS_SECTION,
        rock_boundary_offset_m=STANDARD_ROCK_BOUNDARY_DEFAULT_OFFSET_M,
    )


def _same(ts: dict, py: dict) -> None:
    assert ts["section_mode"] == py["section_mode"]
    assert ts["ground_type"] == "ripping_rock" and ts["ditch_type"] == "standard"
    assert abs(ts["cut_area_m2"] - py["cut_area_m2"]) < 1e-9
    assert abs(ts["fill_area_m2"] - py["fill_area_m2"]) < 1e-9
    assert len(ts["design_line"]) == len(py["design_line"])
    for a, b in zip(ts["design_line"], py["design_line"]):
        assert abs(a["offset_m"] - b["offset_m"]) < 1e-9
        assert abs(a["elevation_m"] - b["elevation_m"]) < 1e-9


def test_expect_matches_python(tmp_path: Path) -> None:
    got = _run_ts(tmp_path)
    for station, ts in zip(_STATIONS, got["cross"]):
        if station["center_z"] is None:
            assert ts is None  # 지반고 없음 = 못 세움
            continue
        py = _python(station["samples"], station["center_z"], station["uphill_side"])
        _same(ts["design"], py)
        assert ts["design"]["design_elevation_m"] == station["center_z"]
    # 산쪽 절토 · 모르면 좌
    assert [c and c["design"]["section_mode"] for c in got["cross"]] == [
        "left_cut",
        "right_cut",
        "left_cut",
        None,
    ]
    # 비탈 표본 — 절토 · 성토 둘 다 섬
    assert got["cross"][0]["design"]["cut_area_m2"] > 0
    assert got["cross"][0]["design"]["fill_area_m2"] > 0


def test_unclosed_extends_and_sections(tmp_path: Path) -> None:
    got = _run_ts(tmp_path)
    wide = got["wide"]
    narrow = _python(_station(_WIDE_SLOPE, "left")["samples"], 100.0, "left")
    assert narrow["slope_unclosed"] is True  # ±20 m 안에선 안 닫힘
    assert wide["design"]["slope_unclosed"] is False
    assert min(s["offset_m"] for s in wide["samples"]) < -20.0
    _same(wide["design"], _python(wide["samples"], 100.0, "left"))
    # 코리도 측점 = 세운 측점만(지반고 없는 측점 뺌) · 좌 축 · 설계 실음
    sections = got["sections"]
    assert len(sections) == 4
    assert all(s["frame"]["left_xy"] == [0.0, 1.0] and s["design"]["design_line"] for s in sections)
    assert sections[-1]["samples"] == wide["samples"]