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"""
Geocoding service for FleetMind
Handles address validation with Google Maps API and smart mock fallback
"""
import os
import googlemaps
import logging
from typing import Dict, Optional
logger = logging.getLogger(__name__)
# Common city coordinates for mock geocoding
CITY_COORDINATES = {
"san francisco": (37.7749, -122.4194),
"sf": (37.7749, -122.4194),
"new york": (40.7128, -74.0060),
"nyc": (40.7128, -74.0060),
"los angeles": (34.0522, -118.2437),
"la": (34.0522, -118.2437),
"chicago": (41.8781, -87.6298),
"houston": (29.7604, -95.3698),
"phoenix": (33.4484, -112.0740),
"philadelphia": (39.9526, -75.1652),
"san antonio": (29.4241, -98.4936),
"san diego": (32.7157, -117.1611),
"dallas": (32.7767, -96.7970),
"austin": (30.2672, -97.7431),
"seattle": (47.6062, -122.3321),
"boston": (42.3601, -71.0589),
"denver": (39.7392, -104.9903),
"miami": (25.7617, -80.1918),
"atlanta": (33.7490, -84.3880),
"portland": (45.5152, -122.6784),
}
class GeocodingService:
"""Handle address geocoding with Google Maps API and smart mock fallback"""
def __init__(self):
self.google_maps_key = os.getenv("GOOGLE_MAPS_API_KEY", "")
self.use_mock = not self.google_maps_key or self.google_maps_key.startswith("your_")
if self.use_mock:
logger.info("Geocoding: Using mock (GOOGLE_MAPS_API_KEY not configured)")
self.gmaps_client = None
else:
try:
self.gmaps_client = googlemaps.Client(key=self.google_maps_key)
logger.info("Geocoding: Using Google Maps API")
except Exception as e:
logger.error(f"Failed to initialize Google Maps client: {e}")
self.use_mock = True
self.gmaps_client = None
def geocode(self, address: str) -> Dict:
"""
Geocode address, using mock if API unavailable
Args:
address: Street address to geocode
Returns:
Dict with keys: lat, lng, formatted_address, confidence
"""
if self.use_mock:
return self._geocode_mock(address)
else:
try:
return self._geocode_google(address)
except Exception as e:
logger.error(f"Google Maps API failed: {e}, falling back to mock")
return self._geocode_mock(address)
def _geocode_google(self, address: str) -> Dict:
"""Real Google Maps API geocoding"""
try:
# Call Google Maps Geocoding API
result = self.gmaps_client.geocode(address)
if not result:
# No results found, fall back to mock
logger.warning(f"Google Maps API found no results for: {address}")
return self._geocode_mock(address)
# Get first result
first_result = result[0]
location = first_result['geometry']['location']
return {
"lat": location['lat'],
"lng": location['lng'],
"formatted_address": first_result.get('formatted_address', address),
"confidence": "high (Google Maps API)"
}
except Exception as e:
logger.error(f"Google Maps geocoding error: {e}")
raise
def _geocode_mock(self, address: str) -> Dict:
"""
Smart mock geocoding for testing
Tries to detect city name and use approximate coordinates
"""
address_lower = address.lower()
# Try to find a city match
for city, coords in CITY_COORDINATES.items():
if city in address_lower:
logger.info(f"Mock geocoding detected city: {city}")
return {
"lat": coords[0],
"lng": coords[1],
"formatted_address": address,
"confidence": f"medium (mock - {city})"
}
# Default to San Francisco if no city detected
logger.info("Mock geocoding: Using default SF coordinates")
return {
"lat": 37.7749,
"lng": -122.4194,
"formatted_address": address,
"confidence": "low (mock - default)"
}
def reverse_geocode(self, lat: float, lng: float) -> Dict:
"""
Reverse geocode coordinates to address
Args:
lat: Latitude
lng: Longitude
Returns:
Dict with keys: address, city, state, country, formatted_address
"""
if self.use_mock:
return self._reverse_geocode_mock(lat, lng)
else:
try:
return self._reverse_geocode_google(lat, lng)
except Exception as e:
logger.error(f"Google Maps reverse geocoding failed: {e}, falling back to mock")
return self._reverse_geocode_mock(lat, lng)
def _reverse_geocode_google(self, lat: float, lng: float) -> Dict:
"""Real Google Maps API reverse geocoding"""
try:
# Call Google Maps Reverse Geocoding API
result = self.gmaps_client.reverse_geocode((lat, lng))
if not result:
logger.warning(f"Google Maps API found no results for: ({lat}, {lng})")
return self._reverse_geocode_mock(lat, lng)
# Get first result
first_result = result[0]
# Extract address components
address_components = first_result.get('address_components', [])
city = ""
state = ""
country = ""
for component in address_components:
types = component.get('types', [])
if 'locality' in types:
city = component.get('long_name', '')
elif 'administrative_area_level_1' in types:
state = component.get('short_name', '')
elif 'country' in types:
country = component.get('long_name', '')
return {
"address": first_result.get('formatted_address', f"{lat}, {lng}"),
"city": city,
"state": state,
"country": country,
"formatted_address": first_result.get('formatted_address', f"{lat}, {lng}"),
"confidence": "high (Google Maps API)"
}
except Exception as e:
logger.error(f"Google Maps reverse geocoding error: {e}")
raise
def _reverse_geocode_mock(self, lat: float, lng: float) -> Dict:
"""
Mock reverse geocoding
Tries to match coordinates to known cities
"""
# Find closest city
min_distance = float('inf')
closest_city = "Unknown Location"
for city, coords in CITY_COORDINATES.items():
# Simple distance calculation
distance = ((lat - coords[0]) ** 2 + (lng - coords[1]) ** 2) ** 0.5
if distance < min_distance:
min_distance = distance
closest_city = city
# If very close to a known city (within ~0.1 degrees, roughly 11km)
if min_distance < 0.1:
logger.info(f"Mock reverse geocoding: Matched to {closest_city}")
return {
"address": f"Near {closest_city.title()}",
"city": closest_city.title(),
"state": "CA" if "san francisco" in closest_city or "la" in closest_city else "",
"country": "USA",
"formatted_address": f"Near {closest_city.title()}, USA",
"confidence": f"medium (mock - near {closest_city})"
}
else:
logger.info(f"Mock reverse geocoding: Unknown location at ({lat}, {lng})")
return {
"address": f"{lat}, {lng}",
"city": "",
"state": "",
"country": "",
"formatted_address": f"Coordinates: {lat}, {lng}",
"confidence": "low (mock - no match)"
}
def get_status(self) -> str:
"""Get geocoding service status"""
if self.use_mock:
return "⚠️ Using mock geocoding (add GOOGLE_MAPS_API_KEY for real)"
else:
return "✅ Google Maps API connected"
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