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Nuevas funciones Python: build_guide_prompt, generate_pwa_manifest, generate_service_worker, match_pois_to_interests (core), nominatim_reverse_geocode, ollama_chat, overpass_nearby_pois (infra). Incluye tests unitarios. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
75 lines
2.3 KiB
Python
75 lines
2.3 KiB
Python
"""Reverse geocoding usando Nominatim (OpenStreetMap)."""
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import json
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import urllib.request
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import urllib.parse
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def nominatim_reverse_geocode(lat: float, lon: float, lang: str = "es") -> dict:
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"""Convierte coordenadas lat/lon a una dirección estructurada usando Nominatim.
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Args:
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lat: Latitud en grados decimales.
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lon: Longitud en grados decimales.
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lang: Código de idioma para la respuesta (ISO 639-1). Por defecto "es".
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Returns:
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Diccionario con campos normalizados de la dirección.
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Raises:
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RuntimeError: Si la petición HTTP falla o el servidor retorna error.
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"""
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params = urllib.parse.urlencode({
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"format": "jsonv2",
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"lat": str(lat),
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"lon": str(lon),
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"accept-language": lang,
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"zoom": "18",
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})
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url = f"https://nominatim.openstreetmap.org/reverse?{params}"
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req = urllib.request.Request(
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url,
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headers={"User-Agent": "fn_registry/1.0"},
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)
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try:
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with urllib.request.urlopen(req, timeout=5) as resp:
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if resp.status != 200:
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raise RuntimeError(
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f"nominatim_reverse_geocode: HTTP {resp.status} para lat={lat}, lon={lon}"
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)
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data = json.loads(resp.read().decode("utf-8"))
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except urllib.error.HTTPError as e:
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raise RuntimeError(
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f"nominatim_reverse_geocode: HTTP {e.code} para lat={lat}, lon={lon}"
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) from e
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except urllib.error.URLError as e:
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raise RuntimeError(
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f"nominatim_reverse_geocode: error de red — {e.reason}"
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) from e
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address = data.get("address", {})
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city = (
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address.get("city")
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or address.get("town")
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or address.get("village")
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or ""
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)
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return {
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"display_name": data.get("display_name", ""),
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"street": address.get("road", ""),
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"house_number": address.get("house_number", ""),
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"neighbourhood": address.get("neighbourhood", ""),
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"city": city,
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"state": address.get("state", ""),
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"country": address.get("country", ""),
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"postcode": address.get("postcode", ""),
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"lat": float(data.get("lat", lat)),
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"lon": float(data.get("lon", lon)),
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"osm_type": data.get("osm_type", ""),
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"osm_id": int(data.get("osm_id", 0)),
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}
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