"""Тесты parcel_ird_overlaps (#1067 D9) — ИРД-overlay lookup для analyze."""

from __future__ import annotations

from typing import Any

from sqlalchemy.exc import OperationalError

from app.services.site_finder.ird_overlay_lookup import parcel_ird_overlaps


class _Result:
    def __init__(self, rows: list[dict[str, Any]]) -> None:
        self._rows = rows

    def mappings(self) -> _Result:
        return self

    def all(self) -> list[dict[str, Any]]:
        return self._rows


class _FakeDB:
    def __init__(
        self, rows: list[dict[str, Any]] | None = None, raise_exc: Exception | None = None
    ) -> None:
        self._rows = rows or []
        self._raise = raise_exc

    def execute(self, sql: Any, params: dict[str, Any] | None = None) -> _Result:
        if self._raise is not None:
            raise self._raise
        return _Result(self._rows)


_WKT = "POLYGON((60.5 56.8, 60.6 56.8, 60.6 56.9, 60.5 56.9, 60.5 56.8))"


def test_groups_overlaps_by_kind() -> None:
    rows = [
        {
            "layer_kind": "zouit_okn",
            "reg_numb_border": "66:41-6.41",
            "category": 36940,
            "subcategory": 20,
            "zone_index": None,
            "zone_type_name": None,
        },
        {
            "layer_kind": "zouit_okn",
            "reg_numb_border": "66:41-6.42",
            "category": 36940,
            "subcategory": 20,
            "zone_index": None,
            "zone_type_name": None,
        },
        {
            "layer_kind": "territorial_zones",
            "reg_numb_border": "66:41-7.10",
            "category": 472819,
            "subcategory": 1,
            "zone_index": "Ц-1",
            "zone_type_name": None,
        },
    ]
    res = parcel_ird_overlaps(_FakeDB(rows), _WKT)
    assert len(res["ird_overlaps"]) == 3
    assert res["ird_by_kind"] == {"zouit_okn": 2, "territorial_zones": 1}
    tz = next(o for o in res["ird_overlaps"] if o["layer_kind"] == "territorial_zones")
    assert tz["reg_numb_border"] == "66:41-7.10"
    assert tz["zone_index"] == "Ц-1"


def test_empty_when_no_wkt() -> None:
    res = parcel_ird_overlaps(_FakeDB([{"layer_kind": "x"}]), None)
    assert res == {"ird_overlaps": [], "ird_by_kind": {}}


def test_empty_when_no_overlap() -> None:
    res = parcel_ird_overlaps(_FakeDB([]), _WKT)
    assert res == {"ird_overlaps": [], "ird_by_kind": {}}


def test_graceful_when_table_missing() -> None:
    """ird_overlays ещё не задеплоена → пусто, без падения analyze."""
    db = _FakeDB(raise_exc=OperationalError("stmt", {}, Exception("no such table")))
    res = parcel_ird_overlaps(db, _WKT)
    assert res == {"ird_overlaps": [], "ird_by_kind": {}}