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import requests |
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import time |
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from geopy.geocoders import Nominatim |
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from .logging_config import logger |
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geocoder = Nominatim(user_agent="indian_property_verifier", timeout=10) |
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def verify_address(data): |
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try: |
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address_results = { |
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'address_exists': False, |
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'pincode_valid': False, |
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'city_state_match': False, |
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'coordinates_match': False, |
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'confidence': 0.0, |
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'issues': [], |
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'verification_score': 0.0 |
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} |
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if data['zip']: |
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try: |
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response = requests.get(f"https://api.postalpincode.in/pincode/{data['zip']}", timeout=5) |
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if response.status_code == 200: |
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pin_data = response.json() |
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if pin_data[0]['Status'] == 'Success': |
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address_results['pincode_valid'] = True |
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post_offices = pin_data[0]['PostOffice'] |
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cities = {po['Name'].lower() for po in post_offices} |
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states = {po['State'].lower() for po in post_offices} |
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if data['city'].lower() in cities or data['state'].lower() in states: |
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address_results['city_state_match'] = True |
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else: |
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address_results['issues'].append("City/state may not match pincode") |
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else: |
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address_results['issues'].append(f"Invalid pincode: {data['zip']}") |
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else: |
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address_results['issues'].append("Pincode API error") |
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except Exception as e: |
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logger.error(f"Pincode API error: {str(e)}") |
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address_results['issues'].append("Pincode validation failed") |
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full_address = ', '.join(filter(None, [data['address'], data['city'], data['state'], data['country'], data['zip']])) |
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for attempt in range(3): |
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try: |
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location = geocoder.geocode(full_address) |
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if location: |
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address_results['address_exists'] = True |
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address_results['confidence'] = 0.9 |
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if data['latitude'] and data['longitude']: |
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try: |
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provided_coords = (float(data['latitude']), float(data['longitude'])) |
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geocoded_coords = (location.latitude, location.longitude) |
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from geopy.distance import distance |
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dist = distance(provided_coords, geocoded_coords).km |
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address_results['coordinates_match'] = dist < 1.0 |
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if not address_results['coordinates_match']: |
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address_results['issues'].append(f"Coordinates {dist:.2f}km off") |
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except: |
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address_results['issues'].append("Invalid coordinates") |
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break |
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time.sleep(1) |
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except Exception as e: |
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logger.error(f"Geocoding error on attempt {attempt + 1}: {str(e)}") |
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time.sleep(1) |
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else: |
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address_results['issues'].append("Address geocoding failed") |
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verification_points = ( |
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address_results['address_exists'] * 0.4 + |
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address_results['pincode_valid'] * 0.3 + |
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address_results['city_state_match'] * 0.2 + |
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address_results['coordinates_match'] * 0.1 |
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) |
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address_results['verification_score'] = verification_points |
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return address_results |
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except Exception as e: |
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logger.error(f"Error verifying address: {str(e)}") |
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address_results['issues'].append(str(e)) |
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return address_results |
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