d456e4fecb
Кнопка справа от поля адреса → модалка с картой Екатеринбурга. Клик по дому → reverse-геокодинг → адрес подставляется в форму. - geocoder.reverse_geocode + GET /api/v1/geocode/reverse — Nominatim /reverse (координаты → адрес). - MapPicker.tsx — модалка с Leaflet + OSM-тайлами (Leaflet с CDN, без npm-зависимости), circleMarker по клику. - EstimateForm — кнопка-карта справа от AddressInput. Карта на OSM (без API-ключа). При появлении ключа Yandex (#402) можно перейти на Я.Карты. Closes #415
565 lines
23 KiB
Python
565 lines
23 KiB
Python
"""Geocoder service — address → lat/lon.
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Стратегия:
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- Cache lookup в `geocode_cache` (Postgres) — TTL 90 дней
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- Cache miss → Yandex Geocoder (если есть key) → fallback Nominatim
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- Результат сохраняется в кэш для последующих вызовов
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Используется в:
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- /api/v1/trade-in/estimate (вход — адрес от пользователя)
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- /api/v1/geocode/lookup (debug endpoint)
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- scraper jobs (когда нужно по адресу определить координаты)
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"""
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from __future__ import annotations
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import asyncio
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import logging
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from dataclasses import dataclass
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from typing import Literal
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import httpx
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from sqlalchemy import text
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from sqlalchemy.orm import Session
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from tenacity import retry, stop_after_attempt, wait_exponential
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from app.core.config import settings
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logger = logging.getLogger(__name__)
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# ── Result type ──────────────────────────────────────────────────────────────
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@dataclass(frozen=True, slots=True)
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class GeocodeResult:
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lat: float
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lon: float
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full_address: str
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provider: Literal["nominatim", "yandex", "cache"]
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confidence: Literal["exact", "approximate", "locality"] = "approximate"
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# ── Address normalisation ───────────────────────────────────────────────────
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def normalize_address(address: str) -> str:
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"""Нормализация для cache lookup: lowercase + trim + collapse whitespace.
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« Ул. МАЛЫШЕВА, 30 » → «ул. малышева, 30»
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"""
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return " ".join(address.lower().strip().split())
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# Согласные, которые часто пишут с одной буквой вместо двух (RU typos).
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_DOUBLE_CONSONANTS = "лнмссккттпп"
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def _typo_variants(query: str, limit: int = 6) -> list[str]:
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"""Генерация вариантов с удвоением согласных — для случая когда пользователь
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написал «Цвилинга» вместо «Цвиллинга», «Толстова» вместо «Толстого» итд.
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Каждая позиция где есть одинокая согласная — кандидат на удвоение.
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Возвращаем до `limit` вариантов в порядке вероятности (ближе к началу слова → выше).
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"""
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if len(query) < 3:
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return []
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variants: list[str] = []
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chars = list(query)
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for i in range(1, len(chars) - 1):
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c = chars[i].lower()
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if c not in _DOUBLE_CONSONANTS:
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continue
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prev_c = chars[i - 1].lower()
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next_c = chars[i + 1].lower()
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# Удваиваем только если соседи — гласные/'ь'/'ъ' (характерно для русских типо)
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if prev_c in "аеёиоуыэюяьъ" and next_c in "аеёиоуыэюяьъ":
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variant = query[:i + 1] + chars[i] + query[i + 1:]
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if variant != query and variant not in variants:
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variants.append(variant)
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if len(variants) >= limit:
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break
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return variants
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# ── Cache ────────────────────────────────────────────────────────────────────
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def _cache_get(db: Session, address_norm: str) -> GeocodeResult | None:
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row = db.execute(
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text(
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"""
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SELECT lat, lon, full_address, provider, confidence
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FROM geocode_cache
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WHERE address_normalized = :addr
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AND expires_at > NOW()
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"""
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),
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{"addr": address_norm},
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).fetchone()
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if row is None:
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return None
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return GeocodeResult(
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lat=row.lat,
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lon=row.lon,
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full_address=row.full_address,
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provider="cache",
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confidence=row.confidence or "approximate",
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)
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def _cache_put(db: Session, address_norm: str, result: GeocodeResult) -> None:
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db.execute(
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text(
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"""
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INSERT INTO geocode_cache
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(address_normalized, lat, lon, full_address, provider, confidence)
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VALUES (:addr, :lat, :lon, :full, :provider, :conf)
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ON CONFLICT (address_normalized) DO UPDATE
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SET lat = EXCLUDED.lat,
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lon = EXCLUDED.lon,
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full_address = EXCLUDED.full_address,
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provider = EXCLUDED.provider,
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confidence = EXCLUDED.confidence,
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created_at = NOW(),
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expires_at = NOW() + interval '90 days'
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"""
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),
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{
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"addr": address_norm,
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"lat": result.lat,
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"lon": result.lon,
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"full": result.full_address,
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"provider": result.provider,
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"conf": result.confidence,
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},
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)
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db.commit()
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# ── Provider: Nominatim (OSM, без ключа) ────────────────────────────────────
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async def _nominatim_query(client: httpx.AsyncClient, address: str) -> dict | None:
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"""Single Nominatim search. Возвращает первый item или None.
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ВАЖНО: фильтруем результаты по ЕКБ bbox прямо тут, чтобы при опечатках
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не возвращать Пермский край / Челябинск.
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"""
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response = await client.get(
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"https://nominatim.openstreetmap.org/search",
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params={
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"q": address,
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"format": "json",
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"limit": "3",
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"countrycodes": "ru",
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"addressdetails": "1",
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"viewbox": EKB_BBOX["viewbox"],
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"bounded": "1", # строго в ЕКБ bbox
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},
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)
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response.raise_for_status()
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data = response.json()
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for item in data:
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try:
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lat_f = float(item["lat"])
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lon_f = float(item["lon"])
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if 60.40 <= lon_f <= 60.85 and 56.65 <= lat_f <= 56.95:
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return item
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except Exception: # noqa: BLE001
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continue
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return None
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@retry(stop=stop_after_attempt(3), wait=wait_exponential(multiplier=1, min=1, max=8))
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async def _nominatim_lookup(address: str) -> GeocodeResult | None:
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"""OSM Nominatim — бесплатно, без ключа, 1 req/sec policy.
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Бан-policy: User-Agent с email обязателен.
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Tier 1: bounded ЕКБ на оригинальный адрес.
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Tier 2: bounded ЕКБ на typo-варианты (Цвилинга → Цвиллинга).
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"""
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headers = {
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"User-Agent": f"TradeInMVP/0.1 (contact: {settings.contact_email})",
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"Accept": "application/json",
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"Accept-Language": "ru,en;q=0.8",
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"Referer": "https://tradein-mvp.local/",
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}
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async with httpx.AsyncClient(timeout=10.0, headers=headers) as client:
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# Tier 1: оригинал
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item = await _nominatim_query(client, address)
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# Tier 2: typo-variants
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if item is None:
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for variant in _typo_variants(address, limit=4):
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await asyncio.sleep(1.0) # Nominatim 1 req/sec policy
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item = await _nominatim_query(client, variant)
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if item is not None:
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logger.info("nominatim typo-fixed: %s → %s", address, variant)
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break
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if item is None:
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return None
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confidence = "exact" if item.get("class") == "building" else "approximate"
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return GeocodeResult(
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lat=float(item["lat"]),
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lon=float(item["lon"]),
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full_address=item.get("display_name", address),
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provider="nominatim",
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confidence=confidence,
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)
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# ── Provider: Yandex Geocoder (требует key, лучшее покрытие РФ) ─────────────
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@retry(stop=stop_after_attempt(3), wait=wait_exponential(multiplier=1, min=1, max=8))
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async def _yandex_lookup(address: str, api_key: str) -> GeocodeResult | None:
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"""Yandex Geocoder — 25K req/day free для самопод, лучше РФ.
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Docs: https://yandex.ru/dev/maps/geocoder/doc/desc/concepts/input_params.html
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Запрашиваем с ll+spn (центр ЕКБ) для приоритизации местных результатов,
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но БЕЗ rspn — чтобы fuzzy matching работал при опечатках.
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"""
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# Не запихиваем "Екатеринбург" если оно уже есть в адресе (типичный кейс из suggest)
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geocode_query = address if "екатеринбург" in address.lower() else f"Екатеринбург, {address}"
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async with httpx.AsyncClient(timeout=10.0) as client:
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response = await client.get(
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"https://geocode-maps.yandex.ru/1.x/",
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params={
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"apikey": api_key,
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"geocode": geocode_query,
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"format": "json",
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"results": 5, # берем top-5, отфильтруем по ЕКБ bbox ниже
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"lang": "ru_RU",
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"ll": EKB_BBOX["ll"],
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"spn": EKB_BBOX["spn"],
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},
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)
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response.raise_for_status()
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data = response.json()
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members = data.get("response", {}).get("GeoObjectCollection", {}).get("featureMember", [])
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if not members:
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return None
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# Фильтруем top-5 по ЕКБ bbox — игнорируем Челябинск/Уфу/Москву при опечатке
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best = None
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for m in members:
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obj = m.get("GeoObject", {})
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try:
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lon_str, lat_str = obj["Point"]["pos"].split()
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lat_f, lon_f = float(lat_str), float(lon_str)
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if 60.40 <= lon_f <= 60.85 and 56.65 <= lat_f <= 56.95:
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best = obj
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break
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except Exception: # noqa: BLE001
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continue
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if best is None:
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# Никто из top-5 не попал в ЕКБ → берем первый «как есть» (вне ЕКБ — но хоть что-то)
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best = members[0]["GeoObject"]
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lon_str, lat_str = best["Point"]["pos"].split()
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precision_raw = (
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best.get("metaDataProperty", {})
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.get("GeocoderMetaData", {})
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.get("precision", "other")
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)
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confidence_map = {
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"exact": "exact",
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"number": "exact",
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"near": "approximate",
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"range": "approximate",
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"street": "approximate",
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}
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return GeocodeResult(
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lat=float(lat_str),
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lon=float(lon_str),
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full_address=best.get("metaDataProperty", {})
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.get("GeocoderMetaData", {})
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.get("text", address),
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provider="yandex",
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confidence=confidence_map.get(precision_raw, "approximate"),
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)
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# ── Suggest (автокомплит) ───────────────────────────────────────────────────
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# ЕКБ bounding box (приблизительно): юг 56.65, запад 60.40, север 56.95, восток 60.85
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EKB_BBOX = {
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"viewbox": "60.40,56.95,60.85,56.65", # Nominatim format: lon1,lat1,lon2,lat2 (NW,SE)
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"ll": "60.605,56.838", # Yandex center (lon,lat)
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"spn": "0.45,0.30", # Yandex span (lon,lat)
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}
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@dataclass(frozen=True, slots=True)
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class GeocodeSuggestion:
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label: str # формат "Малышева 30, Октябрьский район"
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full_address: str # полный из геокодера
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lat: float
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lon: float
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kind: str # 'house' / 'street' / 'locality'
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def _parse_yandex_members(members: list[dict]) -> list[GeocodeSuggestion]:
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"""Yandex geocode_members → list[GeocodeSuggestion]. Чистим описание от мусора."""
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out: list[GeocodeSuggestion] = []
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for m in members:
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obj = m.get("GeoObject", {})
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try:
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lon_str, lat_str = obj["Point"]["pos"].split()
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meta = obj.get("metaDataProperty", {}).get("GeocoderMetaData", {})
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kind = meta.get("kind", "other")
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full = meta.get("text", obj.get("name", ""))
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name = obj.get("name", full)
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desc = obj.get("description", "")
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desc_parts = [
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p.strip() for p in desc.split(",")
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if p.strip() and p.strip() not in {"Россия", "Свердловская область"}
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]
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label = name if not desc_parts else f"{name} · {', '.join(desc_parts)}"
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out.append(GeocodeSuggestion(
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label=label, full_address=full,
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lat=float(lat_str), lon=float(lon_str), kind=kind,
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))
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except Exception: # noqa: BLE001
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continue
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return out
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async def _yandex_geocode_request(
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client: httpx.AsyncClient, api_key: str, query: str, limit: int, bounded: bool
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) -> list[dict]:
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"""Single Yandex Geocoder request — bounded=True → строго в ЕКБ через rspn=1."""
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params: dict[str, str] = {
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"apikey": api_key,
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"geocode": query,
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"format": "json",
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"results": str(limit),
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"lang": "ru_RU",
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"ll": EKB_BBOX["ll"],
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"spn": EKB_BBOX["spn"],
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}
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if bounded:
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params["rspn"] = "1"
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response = await client.get("https://geocode-maps.yandex.ru/1.x/", params=params)
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response.raise_for_status()
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data = response.json()
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return data.get("response", {}).get("GeoObjectCollection", {}).get("featureMember", [])
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@retry(stop=stop_after_attempt(2), wait=wait_exponential(multiplier=1, min=1, max=4))
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async def _yandex_suggest(query: str, api_key: str, limit: int = 8) -> list[GeocodeSuggestion]:
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"""Yandex Geocoder с авто-fallback на typo-tolerant режим.
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Tier 1: bounded ЕКБ (rspn=1) на оригинальный query.
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Tier 2: bounded ЕКБ на typo-variants (удвоение согласных).
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Tier 3: без rspn — fuzzy по всей стране, фильтр результатов по ЕКБ bbox.
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"""
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async with httpx.AsyncClient(timeout=8.0) as client:
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# Tier 1: strict bounded на оригинал
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members = await _yandex_geocode_request(
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client, api_key, f"Екатеринбург, {query}", limit, bounded=True,
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)
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results = _parse_yandex_members(members)
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if results:
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return results
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# Tier 2: bounded на typo-варианты
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for variant in _typo_variants(query, limit=4):
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members = await _yandex_geocode_request(
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client, api_key, f"Екатеринбург, {variant}", limit, bounded=True,
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)
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results = _parse_yandex_members(members)
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if results:
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return results
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# Tier 3: без rspn — даём fuzzy сделать своё дело, фильтр по bbox
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members = await _yandex_geocode_request(
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client, api_key, f"Екатеринбург, {query}", limit, bounded=False,
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)
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results = _parse_yandex_members(members)
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in_ekb = [
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r for r in results
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if 60.40 <= r.lon <= 60.85 and 56.65 <= r.lat <= 56.95
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]
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return in_ekb
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async def _nominatim_query_multi(
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client: httpx.AsyncClient, query: str, limit: int
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) -> list[dict]:
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"""Один Nominatim search с фильтром по ЕКБ bbox. Возвращает up to N items."""
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response = await client.get(
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"https://nominatim.openstreetmap.org/search",
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params={
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"q": query,
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"format": "json",
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"limit": str(limit),
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"countrycodes": "ru",
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"viewbox": EKB_BBOX["viewbox"],
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"bounded": "1",
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"addressdetails": "1",
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},
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)
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response.raise_for_status()
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data = response.json()
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return data if isinstance(data, list) else []
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@retry(stop=stop_after_attempt(2), wait=wait_exponential(multiplier=1, min=1, max=4))
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async def _nominatim_suggest(query: str, limit: int = 8) -> list[GeocodeSuggestion]:
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"""Nominatim в режиме suggest. С typo-fallback (для случаев когда Yandex недоступен)."""
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headers = {
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"User-Agent": f"TradeInMVP/0.1 (contact: {settings.contact_email})",
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"Accept": "application/json",
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"Accept-Language": "ru,en;q=0.8",
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}
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async with httpx.AsyncClient(timeout=8.0, headers=headers) as client:
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# Tier 1: оригинальный query
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data = await _nominatim_query_multi(client, f"{query}, Екатеринбург", limit)
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# Tier 2: typo-варианты если оригинал пустой
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if not data:
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for variant in _typo_variants(query, limit=3):
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await asyncio.sleep(1.0) # Nominatim 1 req/sec
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data = await _nominatim_query_multi(client, f"{variant}, Екатеринбург", limit)
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if data:
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logger.info("nominatim suggest typo-fixed: %s → %s", query, variant)
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break
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out: list[GeocodeSuggestion] = []
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for item in data:
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display = item.get("display_name", "")
|
||
addr = item.get("address", {}) or {}
|
||
# Компактный лейбл: street + house_number / locality / district
|
||
street = addr.get("road") or addr.get("street") or ""
|
||
house = addr.get("house_number", "")
|
||
district = addr.get("suburb") or addr.get("city_district") or addr.get("borough") or ""
|
||
parts = []
|
||
if street:
|
||
parts.append(f"{street}{f', {house}' if house else ''}")
|
||
elif item.get("name"):
|
||
parts.append(item["name"])
|
||
if district:
|
||
parts.append(district)
|
||
label = " · ".join(parts) if parts else display[:80]
|
||
kind = "house" if house else ("street" if street else "locality")
|
||
out.append(GeocodeSuggestion(
|
||
label=label, full_address=display,
|
||
lat=float(item["lat"]), lon=float(item["lon"]), kind=kind,
|
||
))
|
||
return out
|
||
|
||
|
||
async def suggest(query: str, limit: int = 8) -> list[GeocodeSuggestion]:
|
||
"""Автокомплит адресов в ЕКБ. Yandex → Nominatim → [].
|
||
|
||
Без кэша (дешёво, провайдеры толерируют автокомплит-запросы).
|
||
"""
|
||
if not query or len(query.strip()) < 2:
|
||
return []
|
||
|
||
if settings.yandex_geocoder_key:
|
||
try:
|
||
results = await _yandex_suggest(query, settings.yandex_geocoder_key, limit)
|
||
if results:
|
||
return results
|
||
except Exception: # noqa: BLE001
|
||
logger.exception("yandex suggest failed, falling back to nominatim")
|
||
|
||
try:
|
||
return await _nominatim_suggest(query, limit)
|
||
except Exception: # noqa: BLE001
|
||
logger.exception("nominatim suggest failed")
|
||
return []
|
||
|
||
|
||
# ── Public API ───────────────────────────────────────────────────────────────
|
||
async def geocode(address: str, db: Session) -> GeocodeResult | None:
|
||
"""Геокодинг с кэшем. Yandex → Nominatim → None.
|
||
|
||
Args:
|
||
address: пользовательский ввод (может быть грязным — нормализуем).
|
||
db: сессия Postgres для cache lookup/write.
|
||
|
||
Returns:
|
||
GeocodeResult или None если ни один провайдер не отвечает.
|
||
"""
|
||
if not address or len(address.strip()) < 3:
|
||
return None
|
||
|
||
addr_norm = normalize_address(address)
|
||
|
||
# 1. Cache
|
||
cached = _cache_get(db, addr_norm)
|
||
if cached is not None:
|
||
logger.info("geocode cache hit: %s", addr_norm)
|
||
return cached
|
||
|
||
# 2. Yandex (если есть key) с typo-fallback
|
||
if settings.yandex_geocoder_key:
|
||
try:
|
||
result = await _yandex_lookup(address, settings.yandex_geocoder_key)
|
||
# Если результат вне ЕКБ — пробуем typo-варианты
|
||
in_ekb = result is not None and 60.40 <= result.lon <= 60.85 and 56.65 <= result.lat <= 56.95
|
||
if result is not None and in_ekb:
|
||
_cache_put(db, addr_norm, result)
|
||
logger.info("geocode yandex: %s → (%.5f, %.5f)", addr_norm, result.lat, result.lon)
|
||
return result
|
||
# Tier 2: typo-variants
|
||
for variant in _typo_variants(address, limit=4):
|
||
try:
|
||
result = await _yandex_lookup(variant, settings.yandex_geocoder_key)
|
||
except Exception: # noqa: BLE001
|
||
continue
|
||
if result is None:
|
||
continue
|
||
if 60.40 <= result.lon <= 60.85 and 56.65 <= result.lat <= 56.95:
|
||
_cache_put(db, addr_norm, result)
|
||
logger.info(
|
||
"geocode yandex typo-fixed: %s → %s → (%.5f, %.5f)",
|
||
addr_norm, variant, result.lat, result.lon,
|
||
)
|
||
return result
|
||
except Exception: # noqa: BLE001
|
||
logger.exception("yandex geocoder failed, falling back to nominatim")
|
||
|
||
# 3. Nominatim fallback
|
||
try:
|
||
result = await _nominatim_lookup(address)
|
||
if result is not None:
|
||
_cache_put(db, addr_norm, result)
|
||
logger.info(
|
||
"geocode nominatim: %s → (%.5f, %.5f)", addr_norm, result.lat, result.lon
|
||
)
|
||
# Nominatim rate-limit policy: 1 req/sec — спим после успешного запроса
|
||
await asyncio.sleep(1.0)
|
||
return result
|
||
except Exception: # noqa: BLE001
|
||
logger.exception("nominatim geocoder failed")
|
||
|
||
return None
|
||
|
||
|
||
# ── Reverse: координаты → адрес (для map-picker'а) ──────────────────────────
|
||
@retry(stop=stop_after_attempt(3), wait=wait_exponential(multiplier=1, min=1, max=8))
|
||
async def reverse_geocode(lat: float, lon: float) -> str | None:
|
||
"""Обратный геокодинг: координаты → адрес (Nominatim /reverse).
|
||
|
||
Клик по дому на карте ЕКБ → адрес подставляется в форму оценки.
|
||
"""
|
||
headers = {
|
||
"User-Agent": f"TradeInMVP/0.1 (contact: {settings.contact_email})",
|
||
"Accept": "application/json",
|
||
"Accept-Language": "ru,en;q=0.8",
|
||
}
|
||
async with httpx.AsyncClient(timeout=10.0, headers=headers) as client:
|
||
response = await client.get(
|
||
"https://nominatim.openstreetmap.org/reverse",
|
||
params={
|
||
"lat": str(lat),
|
||
"lon": str(lon),
|
||
"format": "json",
|
||
"addressdetails": "1",
|
||
"zoom": "18",
|
||
},
|
||
)
|
||
response.raise_for_status()
|
||
data = response.json()
|
||
if not isinstance(data, dict) or "error" in data:
|
||
return None
|
||
return data.get("display_name")
|