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test_mcp_server / utils /api_config.py

SrikanthNagelli

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"""
Central API configuration and environment setup.
"""
import os
import requests
from typing import Dict, Tuple, Optional
import json
import time
from urllib.parse import quote

class APIConfig:
    """Centralized API configuration and validation."""
    
    def __init__(self):
        self.foursquare_api_key = os.environ.get('FOURSQUARE_API_KEY')
        self.anthropic_api_key = os.environ.get('ANTHROPIC_API_KEY')
        
        # Set environment if not already set and key is available
        if self.foursquare_api_key and not os.environ.get('FOURSQUARE_API_KEY'):
            os.environ['FOURSQUARE_API_KEY'] = self.foursquare_api_key
    
    def validate_apis(self) -> Dict[str, bool]:
        """Validate API keys and connectivity."""
        results = {}
        
        # Test Foursquare API
        if self.foursquare_api_key:
            try:
                url = "https://api.foursquare.com/v3/places/search"
                headers = {
                    "accept": "application/json",
                    "Authorization": self.foursquare_api_key
                }
                params = {"query": "test", "limit": 1}
                response = requests.get(url, headers=headers, params=params, timeout=5)
                results['foursquare'] = response.status_code == 200
            except Exception:
                results['foursquare'] = False
        else:
            results['foursquare'] = False
        
        # Check Anthropic API key existence
        results['anthropic'] = bool(self.anthropic_api_key)
        
        return results
    
    def print_status(self):
        """Print API configuration status."""
        print("\n🔧 API Configuration Status:")
        
        validation = self.validate_apis()
        
        if validation['foursquare']:
            print("✓ Foursquare API: Connected and working")
        else:
            print("⚠️ Foursquare API: Connection issues or invalid key")
        
        if validation['anthropic']:
            print("✓ Anthropic API Key: Configured")
        else:
            print("⚠️ Anthropic API Key: Not configured")
            print("ℹ️ Set environment variable: ANTHROPIC_API_KEY=your_key")

class DynamicCoordinateService:
    """Service for dynamically fetching coordinates for locations."""
    
    def __init__(self):
        self.coordinate_cache = {}  # Cache for recently fetched coordinates
        self.cache_expiry = 3600    # Cache expires after 1 hour
        self.foursquare_api_key = os.environ.get('FOURSQUARE_API_KEY')
    
    def get_coordinates(self, location: str) -> Optional[str]:
        """
        Get coordinates for a location dynamically using multiple geocoding services.
        Raises ValueError if coordinates cannot be found.
        """
        location_key = location.lower().strip()
        
        # Check cache first
        if location_key in self.coordinate_cache:
            cached_data = self.coordinate_cache[location_key]
            if time.time() - cached_data['timestamp'] < self.cache_expiry:
                return cached_data['coordinates']
        
        # Try multiple geocoding services in order of preference
        coordinates = None
        
        # 1. Try Foursquare API first (most accurate for places)
        if self.foursquare_api_key:
            coordinates = self._get_coordinates_foursquare(location)
        
        # 2. Fall back to Nominatim (OpenStreetMap) - free but rate limited
        if not coordinates:
            coordinates = self._get_coordinates_nominatim(location)
        
        # 3. If all services fail, raise an error
        if not coordinates:
            raise ValueError(f"Could not retrieve coordinates for '{location}'. Please try a more specific location or check the spelling.")
        
        # Cache the successful result
        self.coordinate_cache[location_key] = {
            'coordinates': coordinates,
            'timestamp': time.time()
        }
        
        return coordinates
    
    def _get_coordinates_foursquare(self, location: str) -> Optional[str]:
        """Get coordinates using Foursquare Places API."""
        try:
            url = "https://api.foursquare.com/v3/places/search"
            headers = {
                "accept": "application/json",
                "Authorization": self.foursquare_api_key
            }
            params = {
                "query": location,
                "limit": 1
            }
            
            response = requests.get(url, headers=headers, params=params, timeout=10)
            response.raise_for_status()
            
            data = response.json()
            if data.get('results'):
                geocode = data['results'][0].get('geocodes', {}).get('main', {})
                if 'latitude' in geocode and 'longitude' in geocode:
                    lat = geocode['latitude']
                    lon = geocode['longitude']
                    return f"{lat},{lon}"
                    
        except Exception as e:
            print(f"Foursquare geocoding failed for '{location}': {e}")
        
        return None
    
    def _get_coordinates_nominatim(self, location: str) -> Optional[str]:
        """Get coordinates using Nominatim (OpenStreetMap) geocoding service."""
        try:
            # Rate limit: max 1 request per second for Nominatim
            time.sleep(1)
            
            encoded_location = quote(location)
            url = f"https://nominatim.openstreetmap.org/search"
            params = {
                'q': location,
                'format': 'json',
                'limit': 1,
                'addressdetails': 1
            }
            headers = {
                'User-Agent': 'MCP-Server/1.0 (Dynamic Coordinate Service)'
            }
            
            response = requests.get(url, params=params, headers=headers, timeout=10)
            response.raise_for_status()
            
            data = response.json()
            if data:
                lat = data[0]['lat']
                lon = data[0]['lon']
                return f"{lat},{lon}"
                
        except Exception as e:
            print(f"Nominatim geocoding failed for '{location}': {e}")
        
        return None
    
    def get_coordinates_tuple(self, location: str) -> Optional[Tuple[float, float]]:
        """Get coordinates as a tuple of (latitude, longitude). Raises ValueError if not found."""
        coords_str = self.get_coordinates(location)
        if coords_str:
            try:
                lat, lon = coords_str.split(',')
                return (float(lat), float(lon))
            except (ValueError, IndexError):
                raise ValueError(f"Invalid coordinate format for '{location}'")
        return None
    
    def clear_cache(self):
        """Clear the coordinate cache."""
        self.coordinate_cache.clear()

# Global configuration instance
api_config = APIConfig()

# Dynamic coordinate service instance
coordinate_service = DynamicCoordinateService()

# Legacy function for backward compatibility
def get_city_coordinates(location: str) -> Optional[str]:
    """
    Get coordinates for a location dynamically.
    This replaces the old static CITY_COORDINATES lookup.
    """
    return coordinate_service.get_coordinates(location)

# Backward compatibility: Minimal CITY_COORDINATES for legacy code
# This is deprecated - use coordinate_service.get_coordinates() instead
CITY_COORDINATES = {
    # Common US cities for backward compatibility only
    'seattle': '47.6062,-122.3321',
    'portland': '45.5155,-122.6789',
    'san francisco': '37.7749,-122.4194',
    'los angeles': '34.0522,-118.2437',
    'denver': '39.7392,-104.9903',
    'chicago': '41.8781,-87.6298',
    'new york': '40.7128,-74.0060',
    'boston': '42.3601,-71.0589',
    'miami': '25.7617,-80.1918',
    'austin': '30.2672,-97.7431',
    'phoenix': '33.4484,-112.0740',
    'atlanta': '33.7490,-84.3880',
    'nashville': '36.1627,-86.7816',
    'minneapolis': '44.9778,-93.2650',
    'lynnwood': '47.8209,-122.3151'
}

# Note: This static mapping is deprecated. 
# For new code, use: coordinate_service.get_coordinates(location) for dynamic lookup

	"""
	Central API configuration and environment setup.
	"""
	import os
	import requests
	from typing import Dict, Tuple, Optional
	import json
	import time
	from urllib.parse import quote

	class APIConfig:
	"""Centralized API configuration and validation."""

	def __init__(self):
	self.foursquare_api_key = os.environ.get('FOURSQUARE_API_KEY')
	self.anthropic_api_key = os.environ.get('ANTHROPIC_API_KEY')

	# Set environment if not already set and key is available
	if self.foursquare_api_key and not os.environ.get('FOURSQUARE_API_KEY'):
	os.environ['FOURSQUARE_API_KEY'] = self.foursquare_api_key

	def validate_apis(self) -> Dict[str, bool]:
	"""Validate API keys and connectivity."""
	results = {}

	# Test Foursquare API
	if self.foursquare_api_key:
	try:
	url = "https://api.foursquare.com/v3/places/search"
	headers = {
	"accept": "application/json",
	"Authorization": self.foursquare_api_key
	}
	params = {"query": "test", "limit": 1}
	response = requests.get(url, headers=headers, params=params, timeout=5)
	results['foursquare'] = response.status_code == 200
	except Exception:
	results['foursquare'] = False
	else:
	results['foursquare'] = False

	# Check Anthropic API key existence
	results['anthropic'] = bool(self.anthropic_api_key)

	return results

	def print_status(self):
	"""Print API configuration status."""
	print("\n🔧 API Configuration Status:")

	validation = self.validate_apis()

	if validation['foursquare']:
	print("✓ Foursquare API: Connected and working")
	else:
	print("⚠️ Foursquare API: Connection issues or invalid key")

	if validation['anthropic']:
	print("✓ Anthropic API Key: Configured")
	else:
	print("⚠️ Anthropic API Key: Not configured")
	print("ℹ️ Set environment variable: ANTHROPIC_API_KEY=your_key")

	class DynamicCoordinateService:
	"""Service for dynamically fetching coordinates for locations."""

	def __init__(self):
	self.coordinate_cache = {} # Cache for recently fetched coordinates
	self.cache_expiry = 3600 # Cache expires after 1 hour
	self.foursquare_api_key = os.environ.get('FOURSQUARE_API_KEY')

	def get_coordinates(self, location: str) -> Optional[str]:
	"""
	Get coordinates for a location dynamically using multiple geocoding services.
	Raises ValueError if coordinates cannot be found.
	"""
	location_key = location.lower().strip()

	# Check cache first
	if location_key in self.coordinate_cache:
	cached_data = self.coordinate_cache[location_key]
	if time.time() - cached_data['timestamp'] < self.cache_expiry:
	return cached_data['coordinates']

	# Try multiple geocoding services in order of preference
	coordinates = None

	# 1. Try Foursquare API first (most accurate for places)
	if self.foursquare_api_key:
	coordinates = self._get_coordinates_foursquare(location)

	# 2. Fall back to Nominatim (OpenStreetMap) - free but rate limited
	if not coordinates:
	coordinates = self._get_coordinates_nominatim(location)

	# 3. If all services fail, raise an error
	if not coordinates:
	raise ValueError(f"Could not retrieve coordinates for '{location}'. Please try a more specific location or check the spelling.")

	# Cache the successful result
	self.coordinate_cache[location_key] = {
	'coordinates': coordinates,
	'timestamp': time.time()
	}

	return coordinates

	def _get_coordinates_foursquare(self, location: str) -> Optional[str]:
	"""Get coordinates using Foursquare Places API."""
	try:
	url = "https://api.foursquare.com/v3/places/search"
	headers = {
	"accept": "application/json",
	"Authorization": self.foursquare_api_key
	}
	params = {
	"query": location,
	"limit": 1
	}

	response = requests.get(url, headers=headers, params=params, timeout=10)
	response.raise_for_status()

	data = response.json()
	if data.get('results'):
	geocode = data['results'][0].get('geocodes', {}).get('main', {})
	if 'latitude' in geocode and 'longitude' in geocode:
	lat = geocode['latitude']
	lon = geocode['longitude']
	return f"{lat},{lon}"

	except Exception as e:
	print(f"Foursquare geocoding failed for '{location}': {e}")

	return None

	def _get_coordinates_nominatim(self, location: str) -> Optional[str]:
	"""Get coordinates using Nominatim (OpenStreetMap) geocoding service."""
	try:
	# Rate limit: max 1 request per second for Nominatim
	time.sleep(1)

	encoded_location = quote(location)
	url = f"https://nominatim.openstreetmap.org/search"
	params = {
	'q': location,
	'format': 'json',
	'limit': 1,
	'addressdetails': 1
	}
	headers = {
	'User-Agent': 'MCP-Server/1.0 (Dynamic Coordinate Service)'
	}

	response = requests.get(url, params=params, headers=headers, timeout=10)
	response.raise_for_status()

	data = response.json()
	if data:
	lat = data[0]['lat']
	lon = data[0]['lon']
	return f"{lat},{lon}"

	except Exception as e:
	print(f"Nominatim geocoding failed for '{location}': {e}")

	return None

	def get_coordinates_tuple(self, location: str) -> Optional[Tuple[float, float]]:
	"""Get coordinates as a tuple of (latitude, longitude). Raises ValueError if not found."""
	coords_str = self.get_coordinates(location)
	if coords_str:
	try:
	lat, lon = coords_str.split(',')
	return (float(lat), float(lon))
	except (ValueError, IndexError):
	raise ValueError(f"Invalid coordinate format for '{location}'")
	return None

	def clear_cache(self):
	"""Clear the coordinate cache."""
	self.coordinate_cache.clear()

	# Global configuration instance
	api_config = APIConfig()

	# Dynamic coordinate service instance
	coordinate_service = DynamicCoordinateService()

	# Legacy function for backward compatibility
	def get_city_coordinates(location: str) -> Optional[str]:
	"""
	Get coordinates for a location dynamically.
	This replaces the old static CITY_COORDINATES lookup.
	"""
	return coordinate_service.get_coordinates(location)

	# Backward compatibility: Minimal CITY_COORDINATES for legacy code
	# This is deprecated - use coordinate_service.get_coordinates() instead
	CITY_COORDINATES = {
	# Common US cities for backward compatibility only
	'seattle': '47.6062,-122.3321',
	'portland': '45.5155,-122.6789',
	'san francisco': '37.7749,-122.4194',
	'los angeles': '34.0522,-118.2437',
	'denver': '39.7392,-104.9903',
	'chicago': '41.8781,-87.6298',
	'new york': '40.7128,-74.0060',
	'boston': '42.3601,-71.0589',
	'miami': '25.7617,-80.1918',
	'austin': '30.2672,-97.7431',
	'phoenix': '33.4484,-112.0740',
	'atlanta': '33.7490,-84.3880',
	'nashville': '36.1627,-86.7816',
	'minneapolis': '44.9778,-93.2650',
	'lynnwood': '47.8209,-122.3151'
	}

	# Note: This static mapping is deprecated.
	# For new code, use: coordinate_service.get_coordinates(location) for dynamic lookup