"""PLAN 346-1 — 계산 묶음을 B05 페이지 · 노선 편집에 붙임.

· 실제 단계 한 번(route · follow · stations · ground · planline · profile · footprint) — 노선 한 점 옮김
  뒤 종단까지 0.3 s 안 · 바뀐 구간 앞 첫 계획선 꼭짓점 · 측점 열쇠 그대로 · 계획고 한 점은 측점 · 지반 안 셈
· 늦은 응답 버림(격자 없음 · 서버 길 지반이 늦는 사이 노선을 또 옮김)
· 편집기 다리(사진첩 감싸기 · 열 때와 같으면 null · 초안 되살림)
· 페이지 묶음 — 노선 초안 캐시 칸 · 종단도가 받음 · 떠났다 다시 열어도 초안 살아남음 · ▲▼ = grade
짝: `helper_346_1_pipeline_page.cjs`(실제 TS 를 Node 로 돌림 · 서버 창구만 가짜).
"""

from __future__ import annotations

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

import numpy as np
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 import B05_Profile_Engine_Sections_Core as core  # noqa: E402
from B05_Profile.B05_Profile_Engine_Grade import resolve_grade_options  # noqa: E402
from B05_Profile.B05_Profile_Engine_Grade_Profile import (  # noqa: E402
    design_ground_following_profile,
)
from B05_Profile.B05_Profile_Structures_Schema import structure_type_map  # noqa: E402
from common_util.common_util_route_polyline import build_planned_polyline  # noqa: E402
from common_util.common_util_surface_sampler import DtmGridSampler, dtm_grid_bytes  # noqa: E402

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

PROJECT = ROOT / "storage/1/3/1bb0f876-983f-4ca5-9cc7-f59ee1f77e0a"
REAL_GRID = PROJECT / "B04_PreProcess/models/dtm_classification_smooth.npz"
REAL_NODES = PROJECT / "B05_Profile/route/planned_route_initial_nodes.csv"
MIN_RADIUS_M = 12.0
BUDGET_MS = 300.0


def _types() -> list[dict]:
    return [
        {
            "type_id": t.type_id,
            "group": t.group,
            "placement": t.placement,
            "managed_by": t.managed_by,
        }
        for t in structure_type_map().values()
    ]


def _line(nodes: list[list[float]]) -> list[list[float]]:
    built = build_planned_polyline(
        [tuple(n) for n in nodes],
        min_radius_m=MIN_RADIUS_M,
        simplify=False,
        curve_flags=[True] * len(nodes),
        radii=[None] * len(nodes),
    )
    return [list(v) for v in built.vertices]


def _fake(folder: Path) -> tuple[Path, list[list[float]]]:
    """가짜 격자 — 칸 폭 고르지 않음 · 빈칸 띠."""
    rng = np.random.default_rng(3461)
    x = (np.cumsum(rng.uniform(0.95, 1.1, 260)) + 1000.0).astype(np.float32)
    y = (np.cumsum(rng.uniform(0.95, 1.1, 160)) + 2000.0).astype(np.float32)
    xx, yy = np.meshgrid(x.astype(np.float64), y.astype(np.float64))
    z = 500 + 0.08 * (xx - 1000) + 0.3 * (yy - 2000) + 2 * np.sin(xx / 13.0)
    mask = np.ones(z.shape, dtype=bool)
    mask[60:70, 100:115] = False
    npz = folder / "dtm_fake.npz"
    np.savez(npz, x=x, y=y, z=z.astype(np.float32), valid_mask=mask)
    return npz, [[1010.0, 2020.0], [1090.0, 2040.0], [1150.0, 2110.0], [1250.0, 2135.0]]


def _real(_folder: Path) -> tuple[Path, list[list[float]]]:
    if not (REAL_GRID.is_file() and REAL_NODES.is_file()):
        pytest.skip("검증_sub8 없음")
    with REAL_NODES.open(encoding="utf-8") as handle:
        return REAL_GRID, [[float(r["x"]), float(r["y"])] for r in csv.DictReader(handle)]


def _run(case) -> dict:
    with tempfile.TemporaryDirectory() as folder:
        npz, nodes = case(Path(folder))
        line = _line(nodes)
        longitudinal = core.generate_sections(
            np.asarray(line, dtype=np.float64), DtmGridSampler.from_npz(npz)
        )["longitudinal"]
        options = resolve_grade_options("trunk", terrain_type="normal", paved=False, stored=None)
        policy = design_ground_following_profile(longitudinal, options)[0]["policy"]
        job = {
            "nodes": nodes,
            "line": line,
            "minRadius": MIN_RADIUS_M,
            "policy": policy,
            "types": _types(),
        }
        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(npz))
        proc = subprocess.run(  # noqa: S603 — 고정 실행 파일
            ["node", str(HERE / "helper_346_1_pipeline_page.cjs"), str(path), str(grid)],
            capture_output=True,
            text=True,
            encoding="utf-8",
            timeout=120,
        )
    assert proc.returncode == 0, proc.stderr
    return json.loads(proc.stdout)


@pytest.fixture(scope="module", params=[_fake, _real], ids=["가짜", "검증_sub8"])
def r(request) -> dict:
    return _run(request.param)


def test_실제_단계_한_번_노선_옮김_종단까지_시간(r):
    real = r["real"]
    assert real["first"]["outcome"] == "done" and real["savedPlanline"] is True
    run = real["routeRun"]
    assert run["outcome"] == "done"
    for stage in ("route", "follow", "stations", "ground", "planline", "profile"):
        assert stage in run["stages"], stage
    to_profile = sum(
        run["stages"][s] for s in ("route", "follow", "stations", "ground", "planline", "profile")
    )
    assert to_profile < BUDGET_MS, run["stages"]
    assert run["totalMs"] < BUDGET_MS
    assert real["moved"]["profileStations"] > 2 and real["moved"]["footprint"] is True


def test_바뀐_구간_앞은_그대로(r):
    real = r["real"]
    from_m = real["range"]["fromM"]
    assert 0 < from_m and real["range"]["toM"] is None  # JSON 의 Infinity = null
    saved = [p for p in real["savedBasePvi"] if p["chainage_m"] < from_m - 1e-6]
    moved = [p for p in real["moved"]["basePvi"] if p["chainage_m"] < from_m - 1e-6]
    assert saved and moved == saved
    before = {k: c for k, c in real["beforeKeys"] if c < from_m - 20}
    after = dict(real["moved"]["stations"])
    assert before and all(after.get(k) == c for k, c in before.items())


def test_계획고_한_점은_측점_지반을_안_셈(r):
    real = r["real"]
    g = real["gradeRun"]
    assert g["outcome"] == "done"
    assert {"route", "follow", "stations", "ground", "planline"} <= set(g["skipped"])
    assert "profile" in g["stages"]
    rng = real["gradeRange"]
    assert rng["fromM"] < real["target"] < (rng["toM"] if rng["toM"] is not None else float("inf"))
    assert abs(real["raised"] - 0.8) < 1e-6


def test_늦은_응답_버림(r):
    late = r["late"]
    assert late["a"] == "dropped" and late["b"] == "done"
    assert late["profileGen"] == ["profile@2"]
    assert not [c for c in late["commits"] if c.startswith(("ground@1", "planline@1"))]


def test_편집기_다리(r):
    d = r["draftLink"]
    assert d["told"] == [3, 2]  # 쌓기 · 되돌리기 — 다시하기 없음은 안 알림
    assert d["restored"] == [
        [r["n"], True]
    ]  # 저장 안 한 초안 = 새 걸음으로 되살림 · 없으면 안 부름
    assert d["unwatched"] is True


def test_페이지_묶음_노선_초안_캐시_칸(r):
    p = r["page"]
    assert p["before"] == {"saved": None, "pipe": True}
    assert (
        p["cached"]["rev"] == 1
        and p["cached"]["terrain"] == "las"
        and p["cached"]["nodes"] == r["n"]
    )
    assert p["sameRev"] == 1  # 같은 노선 = 판 번호 그대로
    assert p["adoptedDraft"] and all(a["draft"] and not a["saved"] for a in p["adoptedDraft"])
    assert p["afterRevert"]["session"] is None and p["afterRevert"]["last"]["draft"] is False
    assert p["disposed"] is None
    assert p["survived"] == r["n"]  # 떠났다 다시 열어도 초안 살아남음
    assert p["reopened"] and p["reopened"][-1]["draft"] is True
    assert p["grade"]["sources"] == ["grade"] and "stations" not in p["grade"]["stages"]
    assert p["clearedDraft"] is None  # clearDrafts 가 함께 비움
    assert p["remoteCalls"] == 0  # 격자 있으면 서버 길 안 탐