gendesign/backend/app/services/site_finder/gate_verdict.py
lekss361 f70be684da feat(#29,#232): wire cad_parcels.permitted_use in analyze + cad_zouit fallback (G2+G3)
TASK A (#29 G2): add parcel_meta to analyze response
- New ParcelMeta Pydantic schema in app/schemas/parcel.py
- SELECT from cad_parcels WHERE cad_num=:c in analyze_parcel() (step 9f)
- Returns permitted_use_established_by_document, land_record_category_type,
  land_record_subtype, cost_value; None when row absent
- Tests: test_analyze_parcel_meta.py (found + not-found cases)

TASK B (#232 G3): cad_zouit fallback in _get_zouit_overlaps
- When nspd_quarter_dumps has zouit_count==0, fall back to ST_Intersects
  query on cad_zouit (3483 rows, GIST indexed)
- Overlaps tagged with source='cad_zouit'; format compatible with NSPD path
- gate_verdict.py: BLOCKER_TYPE_ZONE_KEYWORDS tuple for keyword-based
  classification (охранная зона / трубопровод / электр / газ -> blocker;
  СЗЗ -> warning); NSPD subcategory path preserved backward-compat
- Tests: 6 new test cases in test_gate_verdict.py covering cad_zouit path
  and backward-compat for NSPD subcategory path

Updated db.execute call sequence in test_analyze_*.py (index shift +1 at pos 10).
2026-05-17 08:17:22 +03:00

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"""Gate Verdict aggregator — собирает can-build-MKD signal из NSPD lookups.
Per #32 G5: user-facing answer на главный вопрос девелопера "Можно ли тут МКД?"
Foundation: nspd_zoning, nspd_zouit_overlaps, nspd_engineering_nearby (Sprint 1.1).
Pure function — no DB dependencies, consumes already-fetched data from analyze_parcel.
"""
from __future__ import annotations
from typing import Literal, TypedDict
# ── Zone matching ─────────────────────────────────────────────────────────────
# Residential zone codes — точные ПЗЗ Свердловска (Ж-1..Ж-5)
RESIDENTIAL_ZONE_PREFIXES = ("Ж-", "Ж1", "Ж2", "Ж3", "Ж4", "Ж5")
# Fallback по zone_name (lowercase substring)
RESIDENTIAL_KEYWORDS = ("жил",)
# ── ЗОУИТ taxonomy ────────────────────────────────────────────────────────────
# Subcategory codes которые блокируют МКД (охранные зоны ЛЭП/газа/трубопровода).
# Используется для overlaps из NSPD dump (subcategory INT там заполнен).
BLOCKER_SUBCATEGORIES: dict[int, str] = {
17: "Инженерные коммуникации (охранная зона ЛЭП/газа/трубопровода)",
}
# Keyword-based blockers для cad_zouit fallback (#232).
# cad_zouit.subcategory = 100% NULL, поэтому классификация по type_zone substring.
# Порядок: lowercase, substring match (any wins → blocker).
BLOCKER_TYPE_ZONE_KEYWORDS: tuple[str, ...] = (
"охранная зона",
"трубопровод",
"электр",
"газ",
)
# type_zone substrings, которые дают warning (не blocker) из cad_zouit.
WARNING_TYPE_ZONE_KEYWORDS: tuple[str, ...] = ("сзз", "санитарно-защитная")
# Engineering nearby search radius (метры) — совпадает с quarter_dump_lookup.py
ENGINEERING_NEARBY_THRESHOLD_M = 200
# ── TypedDicts ────────────────────────────────────────────────────────────────
class Blocker(TypedDict):
code: str
detail: str
class Warning(TypedDict):
code: str
detail: str
class GateVerdict(TypedDict):
can_build_mkd: bool | Literal["unknown"]
verdict_label: str # "Можно" | "Нельзя" | "С ограничениями" | "Нужна проверка"
blockers: list[Blocker]
warnings: list[Warning]
checks_performed: list[str]
source: Literal["nspd_dump", "nspd_dump_partial", "no_data"]
# ── Helpers ───────────────────────────────────────────────────────────────────
def is_residential_zone(zone_code: str | None, zone_name: str | None) -> bool:
"""Check if ПЗЗ zone permits residential (МКД) building.
Checks zone_code prefix first (exact ПЗЗ codes), then zone_name lowercase
substring match as fallback for non-standard zone labels.
"""
if zone_code:
if any(zone_code.startswith(p) for p in RESIDENTIAL_ZONE_PREFIXES):
return True
if zone_name:
zn_lower = zone_name.lower()
if any(kw in zn_lower for kw in RESIDENTIAL_KEYWORDS):
return True
return False
# ── Main aggregator ───────────────────────────────────────────────────────────
def compute_gate_verdict(
nspd_zoning: dict | None,
nspd_zouit_overlaps: list[dict] | None,
nspd_engineering_nearby: list[dict] | None,
nspd_dump: dict | None,
) -> GateVerdict:
"""Aggregate NSPD lookups into can-build-MKD verdict.
Checks performed (in order):
1. ПЗЗ residential zone match (blocker if non-residential)
2. ЗОУИТ subcategory 17 overlap (blocker); other subcategories → warnings
3. Engineering nearby presence check (warning-only, not a blocker)
Returns GateVerdict с blockers/warnings/checks_performed и source label.
"""
blockers: list[Blocker] = []
warnings: list[Warning] = []
checks: list[str] = []
# Guard: no NSPD data at all
dump_available = (nspd_dump or {}).get("available", False)
dump_stale = (nspd_dump or {}).get("stale", False)
if not dump_available:
return GateVerdict(
can_build_mkd="unknown",
verdict_label="Нужна проверка",
blockers=[],
warnings=[
Warning(
code="NO_NSPD_DUMP",
detail="Данные NSPD ещё не подгружены",
)
],
checks_performed=[],
source="no_data",
)
source: Literal["nspd_dump", "nspd_dump_partial"] = (
"nspd_dump_partial" if dump_stale else "nspd_dump"
)
# Check 1 — ПЗЗ residential zone
checks.append("ПЗЗ зональность")
if nspd_zoning:
if not is_residential_zone(nspd_zoning.get("zone_code"), nspd_zoning.get("zone_name")):
zone_label = (
nspd_zoning.get("zone_name") or nspd_zoning.get("zone_code") or "неизвестна"
)
blockers.append(
Blocker(
code="PZZ_NOT_RESIDENTIAL",
detail=f"Зона: {zone_label}",
)
)
else:
warnings.append(
Warning(
code="PZZ_UNKNOWN",
detail="ПЗЗ зона не определена",
)
)
# Check 2 — ЗОУИТ overlaps
checks.append("ЗОУИТ пересечения")
for overlap in nspd_zouit_overlaps or []:
src = overlap.get("source", "nspd-quarter-dump")
if src == "cad_zouit":
# cad_zouit fallback path: classify by type_zone keywords (#232).
# subcategory = NULL в cad_zouit, поэтому subcategory-based logic не применяется.
type_zone_lower = (overlap.get("type_zone") or overlap.get("layer") or "").lower()
if any(kw in type_zone_lower for kw in BLOCKER_TYPE_ZONE_KEYWORDS):
blockers.append(
Blocker(
code="ZOUIT_CAD_BLOCKER",
detail=(
f"Охранная зона ({overlap.get('type_zone', '')}): "
f"{overlap.get('name', '')}"
),
)
)
elif any(kw in type_zone_lower for kw in WARNING_TYPE_ZONE_KEYWORDS):
warnings.append(
Warning(
code="ZOUIT_CAD_SZZ",
detail=(
f"СЗЗ ({overlap.get('type_zone', '')}): " f"{overlap.get('name', '')}"
),
)
)
else:
warnings.append(
Warning(
code="ZOUIT_CAD_OTHER",
detail=(
f"ЗОУИТ cad ({overlap.get('type_zone', '')}): "
f"{overlap.get('name', '')}"
),
)
)
else:
# NSPD dump path: subcategory-based logic (backward-compat).
sub = overlap.get("subcategory")
if isinstance(sub, int) and sub in BLOCKER_SUBCATEGORIES:
blockers.append(
Blocker(
code=f"ZOUIT_OVERLAP_SUB{sub}",
detail=f"{BLOCKER_SUBCATEGORIES[sub]}: {overlap.get('name', '')}",
)
)
else:
warnings.append(
Warning(
code=f"ZOUIT_SUB{sub if sub is not None else 'unknown'}",
detail=f"ЗОУИТ {overlap.get('layer', '')}: {overlap.get('name', '')}",
)
)
# Check 3 — Engineering nearby (warning only, not a blocker)
checks.append(f"Инженерные сети в радиусе {ENGINEERING_NEARBY_THRESHOLD_M}м")
if not (nspd_engineering_nearby or []):
warnings.append(
Warning(
code="NO_ENGINEERING_NEARBY",
detail=f"Сетей не найдено в радиусе {ENGINEERING_NEARBY_THRESHOLD_M}м",
)
)
# Final verdict
can_build: bool | Literal["unknown"]
if blockers:
can_build = False
label = "Нельзя"
elif warnings:
can_build = True
label = "С ограничениями"
else:
can_build = True
label = "Можно"
return GateVerdict(
can_build_mkd=can_build,
verdict_label=label,
blockers=blockers,
warnings=warnings,
checks_performed=checks,
source=source,
)