"""PLAN 349-0d sub7 — 노선을 놓으면 관 · 구조물 새 측점이 가게에 바로.

· 열기만 = 가게 안 씀(저장값 그대로)
· 꼭짓점 한 번 끌기 = 묶음 한 번 · 가게 관 · 구조물 측점 바뀜
  · 사진첩이 찍기 전(setTimeout 0)에 씀(한 걸음)
· 새 노선에서 20 m 넘게 먼 구조물 수 알림
· 되돌리기(사진첩이 세션을 되씀) · 초안만 버림 = 초안 전 값(가게 비움 · 입력 = 저장 관)
· 계산 · 알림 안 입력 쓰기 0
짝: `helper_349_0d_follow_store.cjs`(실제 TS 를 Node 로 · 서버 창구만 가짜 · 검증_sub7 노선 · 관).
"""

from __future__ import annotations

import csv
import json
import math
import subprocess
import sys
import tempfile
from pathlib import Path

import pytest

HERE = Path(__file__).resolve().parent
ROOT = HERE.parents[1]
if str(ROOT) not in sys.path:
    sys.path.insert(0, str(ROOT))

from B05_Profile.B05_Profile_Structures_Schema import structure_type_map  # noqa: E402
from common_util.common_util_surface_sampler import dtm_grid_bytes  # noqa: E402
from config.config_system_design import STANDARD_CROSS_SECTION  # noqa: E402

pytestmark = pytest.mark.skipif(
    not (ROOT / "config" / "node_modules" / "typescript").is_dir(),
    reason="프론트엔드 의존성 미설치",
)

PROJECT = ROOT / "storage/1/3/6d3b2812-6d5a-4168-a932-40e4ae303d5a"  # 검증_sub7
ROUTE = PROJECT / "B05_Profile/route"
SECTION = PROJECT / "B06_Section"
GRID = PROJECT / "B04_PreProcess/models/dtm_classification_smooth.npz"
ONES = {g: {"loose": 1.0, "compacted": 1.0} for g in ("soil", "ripping_rock", "blasting_rock")}


def _csv(path: Path) -> list[list[float]]:
    with path.open(encoding="utf-8") as handle:
        return [[float(r["x"]), float(r["y"])] for r in csv.DictReader(handle)]


def _json(path: Path):
    return json.loads(path.read_text(encoding="utf-8"))


def _structure(sid: str, line: list[list[float]], ratio: float, off: float) -> dict:
    """노선 위(off 0) · 옆(off m) 점 구조물 — 저장 노선 누가거리 · 좌표."""
    lengths = [math.dist(a, b) for a, b in zip(line, line[1:])]
    at = sum(lengths) * ratio
    walked = 0.0
    for (a, b), length in zip(zip(line, line[1:]), lengths):
        if walked + length >= at:
            t = (at - walked) / length
            dx, dy = (b[0] - a[0]) / length, (b[1] - a[1]) / length
            x, y = a[0] + dx * length * t - dy * off, a[1] + dy * length * t + dx * off
            break
        walked += length
    return {
        "structure_id": sid,
        "type_id": "erosion_check",
        "placement": "point",
        "chainage_m": round(at, 2),
        "start_m": None,
        "end_m": None,
        "x": x,
        "y": y,
        "options": {},
    }


@pytest.fixture(scope="module")
def r() -> dict:
    if not (GRID.is_file() and (SECTION / "longitudinal/longitudinal.json").is_file()):
        pytest.skip("검증_sub7 없음")
    curves = _json(ROUTE / "planned_route_curves.json")
    sections = sorted(
        (_json(p) for p in (SECTION / "cross_sections").glob("cross_*.json")),
        key=lambda s: s["chainage_m"],
    )
    pipes = _json(PROJECT / "B04_PreProcess/drainage/edits/pipe_points.json")["points"]
    line = _csv(ROUTE / "planned_route.csv")
    structures = [_structure("s-near", line, 0.5, 0.0), _structure("s-far", line, 0.7, 30.0)]
    job = {
        "line": line,
        "structures": structures,
        "nodes": _csv(ROUTE / "planned_route_nodes.csv"),
        "curves": [
            {k: c[k] for k in ("start", "apex", "end", "radius_m")} for c in curves["curves"]
        ],
        "stationSnap": bool(curves.get("station_snap")),
        "minRadius": curves["min_radius_m"],
        "interval": 20.0,
        "types": [
            {"type_id": t.type_id, "group": t.group, "placement": t.placement}
            for t in structure_type_map().values()
        ],
        "pipes": pipes,
        "standard": STANDARD_CROSS_SECTION,
        "conversion": ONES,
        "detail": {
            "longitudinal": _json(SECTION / "longitudinal/longitudinal.json"),
            "cross_sections": sections,
        },
    }
    with tempfile.TemporaryDirectory() as folder:
        path = Path(folder) / "job.json"
        path.write_text(json.dumps(job), encoding="utf-8")
        grid = Path(folder) / "grid.bin"
        grid.write_bytes(dtm_grid_bytes(GRID))
        proc = subprocess.run(  # noqa: S603 — 고정 실행 파일
            ["node", str(HERE / "helper_349_0d_follow_store.cjs"), str(path), str(grid)],
            capture_output=True,
            text=True,
            encoding="utf-8",
            timeout=300,
        )
    assert proc.returncode == 0, proc.stderr
    return json.loads(proc.stdout)


def test_열기만_하면_가게_안_씀(r):
    o = r["open"]
    assert o["storePipes"] is None and o["storeStructures"] is None
    assert o["followed"] == []


def test_꼭짓점_끌기_가게에_새_측점_한_번(r):
    d = r["drag"]
    assert d["runs"] == [["route"]], d["runs"]
    assert d["pipes"] == d["inputPipes"]
    assert d["pipes"] != r["saved"]
    assert len(d["pipes"]) == len(r["saved"])  # 같은 관 그대로(자리만 다시 매김)
    assert {i: c for i, c in d["structures"]} != {i: c for i, c in r["savedStructures"]}
    assert d["atRecord"] == {"pipes": d["pipes"], "structures": d["structures"]}  # 한 걸음 안
    assert d["followed"] == [1]  # s-far 만 20 m 넘음
    assert d["blocked"] == 0


def test_되돌리기_초안_전_값(r):
    u = r["undo"]
    assert u["runs"] == [["route"]], u["runs"]
    assert u["storePipes"] is None and u["storeStructures"] is None
    assert u["inputPipes"] == r["saved"]
    assert u["followed"] == [1, 0]


def test_초안만_버림_초안_전_값(r):
    d = r["drop"]
    assert d["second"] != r["saved"]
    assert d["storePipes"] is None
    assert d["inputPipes"] == r["saved"]
    assert d["blocked"] == 0


_REPORTS_JS = r"""
const fs = require("fs");
const ts = require(process.argv[1] + "/config/node_modules/typescript");
const file = process.argv[1] + "/B05_Profile/logic/B05_Profile_Pipeline_Follow.ts";
const src = fs.readFileSync(file, "utf8");
const options = { compilerOptions: { module: ts.ModuleKind.CommonJS } };
const js = ts.transpileModule(src, options).outputText;
const box = { exports: {} };
new Function("exports", "module", js)(box.exports, box);
const f = box.exports.followPipeReports;
const reports = [
  { chainage_m: 86, effective_diameter_mm: 800, start_m: 84, end_m: 88 },
  { chainage_m: 175, effective_diameter_mm: 1000 },
];
const pipes = [{ chainage_m: 179.374 }, { chainage_m: 89.123, start_m: 87.5 }];
process.stdout.write(JSON.stringify({
  moved: f(reports, pipes),
  saved: f(reports, null),
  count: f(reports, pipes.slice(1)),
}));
"""


def test_관_알림_목록_가게_측점으로():
    proc = subprocess.run(  # noqa: S603 — 고정 실행 파일
        ["node", "-e", _REPORTS_JS, str(ROOT)],
        capture_output=True,
        text=True,
        encoding="utf-8",
        timeout=60,
    )
    assert proc.returncode == 0, proc.stderr
    out = json.loads(proc.stdout)
    first, second = out["moved"]
    assert (first["chainage_m"], first["effective_diameter_mm"]) == (89.12, 800)
    assert first["start_m"] == 87.5  # 가게 구간 그대로
    assert abs(first["end_m"] - 91.12) < 1e-9  # 없으면 옮긴 만큼
    assert (second["chainage_m"], second["effective_diameter_mm"]) == (179.37, 1000)
    assert [p["chainage_m"] for p in out["saved"]] == [86, 175]
    assert [p["chainage_m"] for p in out["count"]] == [86, 175]  # 관 수 다르면 그대로