"""D03 화면 계산 거울(PLAN 530-3) — 파이썬 `D03_PlanAnalysis_Analyze` ↔ TS `logic/D03_PlanAnalysis_Plan.ts`.

짝: `pick_mode` · `chain` · `joined_line` ↔ `pickMode` · `chainRows` · `joinedLine`.
TS 만: 측점 누가(경계 = 측점 · 간격 배수) · 앞붙임 선(선 위 누가 = 등록 시작 누가) · 받은 지형 판정.

./venv/Scripts/python.exe -m pytest resources/tester/test_530_3_plan_logic.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 D03_PlanAnalysis import D03_PlanAnalysis_Analyze as analyze  # noqa: E402

TS_FILE = ROOT / "D03_PlanAnalysis" / "logic" / "D03_PlanAnalysis_Plan.ts"
TSC = ROOT / "config" / "node_modules" / "typescript" / "bin" / "tsc"

_RUNNER = """
import { readFileSync, writeFileSync } from "node:fs";
import * as plan from "./D03_PlanAnalysis/logic/D03_PlanAnalysis_Plan.js";
const job = JSON.parse(readFileSync(process.argv[2], "utf8"));
const out = job.cases.map((c) => {
  const rows = plan.chainRows(job.results, c.choices, c.start);
  return {
    picks: job.results.map((r) => plan.pickMode(r, c.choices[r.year])),
    rows,
    line: plan.joinedLine(job.results, rows),
    stations: plan.stationChainages(rows, 20),
  };
});
const lead = plan.leadInLine([[0, 0], [3, 4], [10, 4]], 1234.5);
const reach = plan.nodesInReach(
  [[500, 500], [900, 500], [1700, 500]],
  [{ x0: 0, y0: 0, x1: 1300, y1: 1000 }, null],
);
writeFileSync(process.argv[3], JSON.stringify({ out, lead, reach }));
"""

_P0, _P1, _P2 = [0.0, 0.0], [300.0, 400.0], [900.0, 400.0]
_RESULTS = [
    {
        "year": 2026,
        "start": _P0,
        "end": _P1,
        "routes": {
            "gradeline": {"planned": [_P0, [100.0, 200.0], _P1], "metrics": {"length_m": 530.0}},
            "earthwork": {"error": "길 없음"},
            "gentle": {"planned": [_P0, _P1], "metrics": {"length_m": 500.004}},
        },
    },
    {
        "year": 2027,
        "start": _P1,
        "end": _P2,
        "routes": {
            "gradeline": {"error": "길 없음"},
            "gentle": {"planned": [_P1, [600.0, 500.0], _P2], "metrics": {"length_m": 640.333}},
            "weighted": {"planned": [_P1, _P2], "metrics": {"length_m": 600.0}},
        },
    },
]
_CASES = [
    {"choices": {}, "start": 1000.0},
    {"choices": {"2026": "gentle", "2027": "weighted"}, "start": 17.25},
    {"choices": {"2026": "earthwork", "2027": "follow"}, "start": 0.0},
]


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({"results": _RESULTS, "cases": _CASES}), 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 test_ts_matches_python_chain(tmp_path: Path) -> None:
    got = _run_ts(tmp_path)
    for case, ts in zip(_CASES, got["out"]):
        choices = {int(k): v for k, v in case["choices"].items()}
        rows = analyze.chain(_RESULTS, choices, case["start"])
        assert ts["picks"] == [analyze.pick_mode(r, choices.get(r["year"])) for r in _RESULTS]
        assert ts["rows"] == rows
        assert ts["line"] == analyze.joined_line(_RESULTS, rows)

    # 측점 = 경계(1530) · 20 배수 · 끝 — 첫 연도 시작 1000 · 끝 2170.333
    stations = got["out"][0]["stations"]
    assert stations[:3] == [1000.0, 1020.0, 1040.0]
    assert 1530.0 in stations and 1520.0 in stations and 1540.0 in stations
    assert stations[-2:] == [2160.0, 2170.333]
    # 시작 17.25 → 첫 규칙 측점 20
    assert got["out"][1]["stations"][:2] == [17.25, 20.0]


def test_lead_in_and_reach(tmp_path: Path) -> None:
    got = _run_ts(tmp_path)
    back = got["lead"][0]
    assert abs(back[0] + 1234.5 * 0.6) < 1e-9 and abs(back[1] + 1234.5 * 0.8) < 1e-9
    assert got["lead"][1:] == [[0, 0], [3, 4], [10, 4]]
    # 마디 0 = 첫 연도 안 · 마디 1 = 첫 연도 안 + 둘째 연도 DEM 없음 = 밖 · 마디 2 = 밖
    assert got["reach"] == [True, False, False]