"""Тесты build_ird_analyze_block (#1067 D9b analyze-wiring, #1102 concurrent geoportal).

DB/сеть не дёргаются: мокаем parcel_ird_overlaps + get_or_fetch_zone_regulation (module-level)
и передаём fake EKBGeoportalClient. Проверяем сборку блока, split opportunity_*, graceful-деградацию
каждого источника, skip geoportal при отсутствии centroid, и корректность конкурентного исполнения.
"""

from __future__ import annotations

import threading
from typing import Any

from app.services.site_finder import ird_analyze


class _Feat:
    def __init__(self, properties: dict[str, Any]) -> None:
        self.properties = properties


class _FakeClient:
    def __init__(self, *, fz: list[_Feat], krt: list[_Feat], boom: bool = False) -> None:
        self._fz = fz
        self._krt = krt
        self._boom = boom
        self.calls: list[tuple[str, float, float]] = []

    def features_at_point(self, layer: str, lon: float, lat: float) -> list[_Feat]:
        self.calls.append((layer, lon, lat))
        if self._boom:
            raise RuntimeError("geoportal down")
        return self._fz if layer == "functional_zone" else self._krt


_OVERLAY = {
    "ird_overlaps": [
        {"layer_kind": "zouit_okn", "reg_numb_border": "66:41-6.1"},
        {"layer_kind": "opportunity_auction", "reg_numb_border": "66:41:1:10"},
        {"layer_kind": "opportunity_krt", "reg_numb_border": None},
    ],
    "ird_by_kind": {"zouit_okn": 1, "opportunity_auction": 1, "opportunity_krt": 1},
}


_PLANNING = [{"project_type": "ppt", "doc_status_name": "действующий", "full_name": "ПАГЕ №1"}]


def _patch_overlay(monkeypatch: Any, overlay: dict[str, Any]) -> None:
    monkeypatch.setattr(ird_analyze, "parcel_ird_overlaps", lambda db, wkt: overlay)
    monkeypatch.setattr(ird_analyze, "parcel_planning_overlaps", lambda db, wkt: list(_PLANNING))


def test_full_block_assembly(monkeypatch: Any) -> None:
    """Все источники → overlaps + split opportunity + КРТ + регламент.
    functional_zone всегда None: слой пуст в геопортале ЕКБ (0 фич, 2026-06) — WFS не дёргается.
    """
    _patch_overlay(monkeypatch, _OVERLAY)
    monkeypatch.setattr(
        ird_analyze,
        "get_or_fetch_zone_regulation",
        lambda db, lon, lat, client=None: {"zone_index": "Ц-1"},
    )
    client = _FakeClient(fz=[_Feat({"name": "Ж-зона"})], krt=[_Feat({"num_oks_krt": "КРТ-7"})])

    block = ird_analyze.build_ird_analyze_block(object(), "POINT(60 56)", 60.6, 56.8, client=client)

    assert len(block["ird_overlaps"]) == 3
    assert block["ird_by_kind"]["opportunity_auction"] == 1
    assert [o["layer_kind"] for o in block["opportunity_overlaps"]] == [
        "opportunity_auction",
        "opportunity_krt",
    ]
    # functional_zone WFS выключен (слой пуст в геопортале ЕКБ, #1058) — всегда None
    assert block["functional_zone"] is None
    assert "functional_zone" not in [layer for layer, _, _ in client.calls]
    assert block["krt"] == [{"num_oks_krt": "КРТ-7"}]
    assert block["zone_regulation"] == {"zone_index": "Ц-1"}
    assert block["planning_projects"] == _PLANNING


def test_geoportal_failure_is_graceful(monkeypatch: Any) -> None:
    """Сбой геопортала → функц.зона None, КРТ [], регламент None; overlaps уцелели."""
    _patch_overlay(monkeypatch, _OVERLAY)

    def _boom(*a: Any, **kw: Any) -> Any:
        raise RuntimeError("zone reg down")

    monkeypatch.setattr(ird_analyze, "get_or_fetch_zone_regulation", _boom)
    client = _FakeClient(fz=[], krt=[], boom=True)

    block = ird_analyze.build_ird_analyze_block(object(), "POINT(60 56)", 60.6, 56.8, client=client)

    assert len(block["ird_overlaps"]) == 3  # DB-overlay не задет
    assert block["functional_zone"] is None
    assert block["krt"] == []
    assert block["zone_regulation"] is None


def test_no_centroid_skips_geoportal(monkeypatch: Any) -> None:
    """lon/lat None → только DB-overlay, geoportal не зовётся (client.calls пуст)."""
    _patch_overlay(monkeypatch, _OVERLAY)
    client = _FakeClient(fz=[_Feat({"x": 1})], krt=[])

    block = ird_analyze.build_ird_analyze_block(object(), "POINT(60 56)", None, None, client=client)

    assert client.calls == []
    assert block["functional_zone"] is None
    assert block["krt"] == []
    assert block["zone_regulation"] is None
    assert len(block["ird_overlaps"]) == 3


def test_empty_overlay(monkeypatch: Any) -> None:
    """Пустой overlay → пустые списки, без KeyError."""
    _patch_overlay(monkeypatch, {"ird_overlaps": [], "ird_by_kind": {}})
    client = _FakeClient(fz=[], krt=[])
    monkeypatch.setattr(ird_analyze, "get_or_fetch_zone_regulation", lambda *a, **kw: None)

    block = ird_analyze.build_ird_analyze_block(object(), None, None, None, client=client)

    assert block["ird_overlaps"] == []
    assert block["opportunity_overlaps"] == []
    assert block["ird_by_kind"] == {}


# ---------------------------------------------------------------------------
# Concurrency tests (#1102)
# ---------------------------------------------------------------------------


def test_concurrent_both_calls_succeed(monkeypatch: Any) -> None:
    """krt и zone_regulation оба вызываются и попадают в block (конкурентный путь)."""
    _patch_overlay(monkeypatch, _OVERLAY)
    zone_reg_calls: list[int] = []

    def _fake_zone_reg(db: Any, lon: float, lat: float, client: Any = None) -> dict[str, Any]:
        zone_reg_calls.append(1)
        return {"zone_index": "Ж-3"}

    monkeypatch.setattr(ird_analyze, "get_or_fetch_zone_regulation", _fake_zone_reg)
    client = _FakeClient(fz=[], krt=[_Feat({"num_oks_krt": "КРТ-99"})])

    block = ird_analyze.build_ird_analyze_block(object(), "POINT(60 56)", 60.6, 56.8, client=client)

    assert block["krt"] == [{"num_oks_krt": "КРТ-99"}]
    assert block["zone_regulation"] == {"zone_index": "Ж-3"}
    assert len(zone_reg_calls) == 1
    # krt layer was requested
    krt_calls = [layer for layer, _, _ in client.calls if layer == "krt"]
    assert len(krt_calls) == 1


def test_concurrent_krt_exception_graceful(monkeypatch: Any) -> None:
    """Исключение в krt (через ThreadPoolExecutor) → block['krt']==[] и zone_regulation заполнен."""
    _patch_overlay(monkeypatch, _OVERLAY)
    monkeypatch.setattr(
        ird_analyze,
        "get_or_fetch_zone_regulation",
        lambda db, lon, lat, client=None: {"zone_index": "Б-1"},
    )
    # boom=True → features_at_point бросает RuntimeError → _krt_at ловит и возвращает []
    client = _FakeClient(fz=[], krt=[], boom=True)

    block = ird_analyze.build_ird_analyze_block(object(), "POINT(60 56)", 60.6, 56.8, client=client)

    assert block["krt"] == []
    assert block["zone_regulation"] == {"zone_index": "Б-1"}
    assert len(block["ird_overlaps"]) == 3


def test_session_not_shared_between_threads(monkeypatch: Any) -> None:
    """Session не шарится между потоками: zone_regulation вызывается в основном потоке.

    Проверяем через threading.current_thread(): zone_reg видит тот же поток, что и вызывающий
    (основной), а не поток из ThreadPoolExecutor (который обрабатывает krt_future).
    """
    _patch_overlay(monkeypatch, _OVERLAY)
    main_thread = threading.current_thread()
    zone_reg_thread: list[threading.Thread] = []

    def _fake_zone_reg(db: Any, lon: float, lat: float, client: Any = None) -> dict[str, Any]:
        zone_reg_thread.append(threading.current_thread())
        return {"zone_index": "Ц-2"}

    monkeypatch.setattr(ird_analyze, "get_or_fetch_zone_regulation", _fake_zone_reg)
    client = _FakeClient(fz=[], krt=[_Feat({"a": 1})])

    ird_analyze.build_ird_analyze_block(object(), "POINT(60 56)", 60.6, 56.8, client=client)

    assert len(zone_reg_thread) == 1
    assert (
        zone_reg_thread[0] is main_thread
    ), "zone_regulation должен исполняться в основном потоке, а не в фоновом (Session safety)"