AI Configs Best Practices

1
"""
2
Simple AI Chatbot
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Multi-provider support: Anthropic, OpenAI, and Google
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Direct API integration with automatic provider selection
5
"""
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import os
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import logging
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from typing import Dict, List, Optional
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from abc import ABC, abstractmethod
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import dotenv
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# AI Provider imports
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import anthropic
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import openai
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import google.genai as genai
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# Set up logging
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logging.basicConfig(
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    level=logging.INFO,
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    format='%(asctime)s - %(levelname)s - %(message)s'
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)
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logger = logging.getLogger(__name__)
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# Suppress HTTP request logs from libraries
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logging.getLogger("httpx").setLevel(logging.WARNING)
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logging.getLogger("httpcore").setLevel(logging.WARNING)
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logging.getLogger("openai").setLevel(logging.WARNING)
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logging.getLogger("anthropic").setLevel(logging.WARNING)
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# Load environment variables
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dotenv.load_dotenv()
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class BaseAIProvider(ABC):
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    """Base class for AI providers"""
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    def __init__(self, api_key: Optional[str] = None):
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        self.api_key = api_key
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        self.client = self._initialize_client() if api_key else None
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    @abstractmethod
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    def _initialize_client(self):
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        """Initialize the provider's client"""
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        pass
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    @abstractmethod
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    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict) -> str:
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        """Send message to the AI provider"""
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        pass
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    def format_messages(self, messages: List[Dict], system_prompt: str) -> List[Dict]:
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        """Default message formatting (can be overridden by providers)"""
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        formatted = [{"role": "system", "content": system_prompt}] if system_prompt else []
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        formatted.extend([{"role": msg["role"], "content": msg["content"]} for msg in messages])
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        return formatted
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    def extract_params(self, params: Dict) -> Dict:
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        """Extract common parameters"""
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        return {
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            "temperature": params.get("temperature", 0.7),
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            "max_tokens": params.get("max_tokens", 500)
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        }
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class AnthropicProvider(BaseAIProvider):
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    """Anthropic Claude provider"""
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    def _initialize_client(self):
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        return anthropic.Anthropic(api_key=self.api_key)
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    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict) -> str:
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        if not self.client:
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            raise ValueError("Anthropic API key not configured")
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        extracted_params = self.extract_params(params)
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        response = self.client.messages.create(
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            model=model,
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            max_tokens=extracted_params["max_tokens"],
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            temperature=extracted_params["temperature"],
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            system=system_prompt,
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            messages=messages
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        )
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        return response.content[0].text
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class OpenAIProvider(BaseAIProvider):
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    """OpenAI GPT provider"""
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    def _initialize_client(self):
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        return openai.OpenAI(api_key=self.api_key)
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    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict) -> str:
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        if not self.client:
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            raise ValueError("OpenAI API key not configured")
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        formatted_messages = self.format_messages(messages, system_prompt)
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        extracted_params = self.extract_params(params)
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        response = self.client.chat.completions.create(
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            model=model,
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            messages=formatted_messages,
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            **extracted_params
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        )
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        return response.choices[0].message.content
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class GoogleProvider(BaseAIProvider):
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    """Google Gemini provider"""
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    def _initialize_client(self):
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        # New SDK uses client instantiation with API key
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        # The environment variable GEMINI_API_KEY is automatically picked up
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        if self.api_key:
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            import os
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            os.environ['GEMINI_API_KEY'] = self.api_key
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        return genai.Client()
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    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict) -> str:
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        if not self.client:
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            raise ValueError("Google API key not configured")
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        extracted_params = self.extract_params(params)
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        # Format conversation with system prompt
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        contents = []
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        # Add system prompt as context
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        if system_prompt:
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            contents.append(f"{system_prompt}\n")
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        # Add conversation history
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        for msg in messages:
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            role = "User" if msg["role"] == "user" else "Assistant"
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            contents.append(f"{role}: {msg['content']}")
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        full_prompt = "\n".join(contents)
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        # Use the new client API
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        response = self.client.models.generate_content(
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            model=model,
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            contents=full_prompt,
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            config={
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                "temperature": extracted_params["temperature"],
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                "max_output_tokens": extracted_params["max_tokens"],
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            }
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        )
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        return response.text
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class AIProviderRegistry:
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    """Registry for AI providers with automatic initialization"""
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    def __init__(self):
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        self.providers = {
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            "anthropic": AnthropicProvider(os.getenv("ANTHROPIC_API_KEY")),
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            "openai": OpenAIProvider(os.getenv("OPENAI_API_KEY")),
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            "google": GoogleProvider(os.getenv("GEMINI_API_KEY"))
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        }
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    def send_message(self, provider: str, model_id: str, messages: List[Dict],
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                     system_prompt: str, parameters: Dict) -> str:
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        """Route message to appropriate provider"""
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        provider_name = provider.lower()
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        if provider_name not in self.providers:
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            raise ValueError(f"Unsupported provider: {provider}")
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        provider_instance = self.providers[provider_name]
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        return provider_instance.send_message(model_id, messages, system_prompt, parameters)
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    def get_available_providers(self) -> List[str]:
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        """Get list of configured providers"""
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        return [name for name, provider in self.providers.items() if provider.api_key]
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    def get_default_provider(self) -> tuple:
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        """Get the default provider based on available API keys"""
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        if os.getenv("ANTHROPIC_API_KEY"):
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            return "anthropic", "claude-3-haiku-20240307"
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        elif os.getenv("OPENAI_API_KEY"):
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            return "openai", "chatgpt-4o-latest"
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        elif os.getenv("GEMINI_API_KEY"):
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            return "google", "gemini-2.5-flash-lite"
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        else:
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            raise ValueError("No AI provider API keys found")
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def run_chatbot():
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    """Main chatbot loop"""
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    print("=" * 70)
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    print("  Simple AI Chatbot")
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    print("=" * 70)
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    print("\nSupporting: Anthropic Claude, OpenAI GPT, Google Gemini")
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    print("Type 'exit' or 'quit' to end the conversation\n")
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    # Initialize AI provider registry
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    try:
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        ai_registry = AIProviderRegistry()
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        available = ai_registry.get_available_providers()
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        if not available:
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            logger.error("No AI provider API keys found. Please configure at least one provider.")
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            return
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        # Get default provider
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        provider, model_id = ai_registry.get_default_provider()
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        logger.info(f"✓ Using {provider} with model {model_id}")
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        logger.info(f"Available providers: {', '.join(available)}")
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    except Exception as e:
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        logger.error(f"Failed to initialize AI providers: {e}")
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        return
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    # Default system prompt
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    system_prompt = "You are a helpful AI assistant. Provide clear, concise, and friendly responses."
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    # Default parameters
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    parameters = {
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        "temperature": 0.7,
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        "max_tokens": 500
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    }
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    conversation_history = []
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    # Main chat loop
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    while True:
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        try:
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            user_input = input("You: ").strip()
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            if user_input.lower() in ['exit', 'quit', 'q']:
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                print("\nGoodbye! Thanks for chatting.")
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                break
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            if not user_input:
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                continue
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            # Add user message to history
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            conversation_history.append({"role": "user", "content": user_input})
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            # Send to AI provider
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            print("\nAssistant: ", end="", flush=True)
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            response = ai_registry.send_message(
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                provider=provider,
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                model_id=model_id,
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                messages=conversation_history,
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                system_prompt=system_prompt,
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                parameters=parameters
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            )
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            print(response)
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            # Add assistant response to history
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            conversation_history.append({"role": "assistant", "content": response})
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        except KeyboardInterrupt:
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            print("\n\nInterrupted. Goodbye!")
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            break
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        except Exception as e:
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            logger.error(f"Error in chat loop: {e}")
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            print(f"\nError: {e}")
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            # Provide helpful guidance for common errors
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            if "API key not valid" in str(e) and "googleapis.com" in str(e):
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                print("\n💡 Tip: For Google Gemini, you need an API key from Google AI Studio:")
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                print("   1. Go to https://aistudio.google.com/app/apikey")
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                print("   2. Click 'Get API Key' and create a new key")
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                print("   3. Add it to your .env file as GEMINI_API_KEY=your-key-here")
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            elif "API key" in str(e).lower():
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                print("\n💡 Tip: Check that your API key is correct and has the necessary permissions.")
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if __name__ == "__main__":
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    # Check for at least one AI provider key
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    provider_keys = ["ANTHROPIC_API_KEY", "OPENAI_API_KEY", "GEMINI_API_KEY"]
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    if not any(os.getenv(key) for key in provider_keys):
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        logger.error("No AI provider API keys found. Please add at least one:")
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        for key in provider_keys:
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            logger.error(f"  - {key}")
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        exit(1)
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    # Run the chatbot
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    run_chatbot()

1
"""
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Simple AI Chatbot with LaunchDarkly Targeting
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Dynamic configuration and feature flagging
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Supports user context-based provider and model selection
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"""
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import os
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import logging
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from typing import Dict, List, Any, Tuple, Optional
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from abc import ABC, abstractmethod
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import dotenv
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# LaunchDarkly imports
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import ldclient
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from ldclient import Context
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from ldclient.config import Config
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from ldai.client import LDAIClient
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from ldai.models import AICompletionConfig, ModelConfig, LDMessage, ProviderConfig
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# AI Provider imports
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import anthropic
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import openai
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import google.genai as genai
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# Set up logging
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logging.basicConfig(
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    level=logging.INFO,
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    format='%(asctime)s - %(levelname)s - %(message)s'
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)
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logger = logging.getLogger(__name__)
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# Suppress HTTP request logs from libraries
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logging.getLogger("httpx").setLevel(logging.WARNING)
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logging.getLogger("httpcore").setLevel(logging.WARNING)
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logging.getLogger("openai").setLevel(logging.WARNING)
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logging.getLogger("anthropic").setLevel(logging.WARNING)
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# Load environment variables
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dotenv.load_dotenv()
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class LaunchDarklyAIClient:
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    """Manages LaunchDarkly AI configuration"""
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    def __init__(self, sdk_key: str, agent_config_key: str):
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        """Initialize LaunchDarkly client"""
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        self.sdk_key = sdk_key
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        self.agent_config_key = agent_config_key
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        self.ld_client = None
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        self.ai_client = None
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        # Only initialize if we have a valid SDK key
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        if sdk_key and sdk_key != "your-launchdarkly-sdk-key" and not sdk_key.startswith("your-"):
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            try:
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                ldclient.set_config(Config(sdk_key))
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                self.ld_client = ldclient.get()
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                self.ai_client = LDAIClient(self.ld_client)
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                # Check if client initialized successfully
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                if not self.ld_client.is_initialized():
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                    logger.info("LaunchDarkly client not initialized, will use fallback configuration")
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                    self.ld_client = None
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                    self.ai_client = None
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            except Exception as e:
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                logger.info(f"LaunchDarkly initialization skipped: {e}")
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                self.ld_client = None
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                self.ai_client = None
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        else:
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            logger.info("No valid LaunchDarkly SDK key provided, using fallback configuration")
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    def get_ai_config(self, user_context: Context, variables: Dict[str, Any] = None) -> AICompletionConfig:
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        """Get AI configuration for a specific user context"""
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        fallback_config = self._get_fallback_config()
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        if not self.ai_client:
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            return fallback_config
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        config = self.ai_client.completion_config(
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            self.agent_config_key,
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            user_context,
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            fallback_config,
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            variables or {}
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        )
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        return config
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    def _get_fallback_config(self) -> AICompletionConfig:
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        """Fallback configuration when LaunchDarkly is unavailable"""
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        # Detect which provider is available
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        provider_name = "anthropic"  # default
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        model_name = "claude-3-haiku-20240307"
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        if os.getenv("ANTHROPIC_API_KEY"):
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            provider_name = "anthropic"
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            model_name = "claude-3.5-haiku-20241022"
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        elif os.getenv("OPENAI_API_KEY"):
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            provider_name = "openai"
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            model_name = "chatgpt-4o-latest"
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        elif os.getenv("GEMINI_API_KEY"):
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            provider_name = "google"
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            model_name = "gemini-2.5-flash-lite"
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        else:
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            logger.warning("No AI provider API keys found for fallback configuration")
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        return AICompletionConfig(
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            key=self.agent_config_key,
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            enabled=True,
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            model=ModelConfig(
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                name=model_name,
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                parameters={"temperature": 0.7, "max_tokens": 500}
109
            ),
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            messages=[LDMessage(
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                role="system",
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                content="You are a helpful AI assistant. Provide clear, concise, and friendly responses."
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            )],
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            provider=ProviderConfig(name=provider_name)
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        )
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class BaseAIProvider(ABC):
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    """Base class for AI providers"""
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    def __init__(self, api_key: Optional[str] = None):
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        self.api_key = api_key
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        self.client = self._initialize_client() if api_key else None
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    @abstractmethod
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    def _initialize_client(self):
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        """Initialize the provider's client"""
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        pass
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    @abstractmethod
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    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict) -> str:
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        """Send message to the AI provider"""
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        pass
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    def format_messages(self, messages: List[Dict], system_prompt: str) -> List[Dict]:
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        """Default message formatting (can be overridden by providers)"""
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        formatted = [{"role": "system", "content": system_prompt}] if system_prompt else []
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        formatted.extend([{"role": msg["role"], "content": msg["content"]} for msg in messages])
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        return formatted
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    def extract_params(self, params: Dict) -> Dict:
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        """Extract common parameters"""
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        return {
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            "temperature": params.get("temperature", 0.7),
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            "max_tokens": params.get("max_tokens", 500)
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        }
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class AnthropicProvider(BaseAIProvider):
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    """Anthropic Claude provider"""
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    def _initialize_client(self):
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        return anthropic.Anthropic(api_key=self.api_key)
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    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict) -> str:
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        if not self.client:
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            raise ValueError("Anthropic API key not configured")
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        extracted_params = self.extract_params(params)
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        response = self.client.messages.create(
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            model=model,
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            max_tokens=extracted_params["max_tokens"],
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            temperature=extracted_params["temperature"],
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            system=system_prompt,
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            messages=messages
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        )
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        return response.content[0].text
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class OpenAIProvider(BaseAIProvider):
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    """OpenAI GPT provider"""
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    def _initialize_client(self):
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        return openai.OpenAI(api_key=self.api_key)
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    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict) -> str:
179
        if not self.client:
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            raise ValueError("OpenAI API key not configured")
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        formatted_messages = self.format_messages(messages, system_prompt)
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        extracted_params = self.extract_params(params)
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        response = self.client.chat.completions.create(
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            model=model,
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            messages=formatted_messages,
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            **extracted_params
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        )
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        return response.choices[0].message.content
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class GoogleProvider(BaseAIProvider):
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    """Google Gemini provider"""
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    def _initialize_client(self):
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        # New SDK uses client instantiation with API key
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        # The environment variable GEMINI_API_KEY is automatically picked up
200
        if self.api_key:
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            import os
202
            os.environ['GEMINI_API_KEY'] = self.api_key
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        return genai.Client()
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    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict) -> str:
206
        if not self.client:
207
            raise ValueError("Google API key not configured")
208
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        extracted_params = self.extract_params(params)
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        # Format conversation with system prompt
212
        contents = []
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        # Add system prompt as context
215
        if system_prompt:
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            contents.append(f"{system_prompt}\n")
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        # Add conversation history
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        for msg in messages:
220
            role = "User" if msg["role"] == "user" else "Assistant"
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            contents.append(f"{role}: {msg['content']}")
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        full_prompt = "\n".join(contents)
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        # Use the new client API
226
        response = self.client.models.generate_content(
227
            model=model,
228
            contents=full_prompt,
229
            config={
230
                "temperature": extracted_params["temperature"],
231
                "max_output_tokens": extracted_params["max_tokens"],
232
            }
233
        )
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        return response.text
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class AIProviderRegistry:
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    """Registry for AI providers with automatic initialization"""
240
241
    def __init__(self):
242
        self.providers = {
243
            "anthropic": AnthropicProvider(os.getenv("ANTHROPIC_API_KEY")),
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            "openai": OpenAIProvider(os.getenv("OPENAI_API_KEY")),
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            "google": GoogleProvider(os.getenv("GEMINI_API_KEY"))
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        }
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    def send_message(self, provider: str, model_id: str, messages: List[Dict],
249
                     system_prompt: str, parameters: Dict) -> str:
250
        """Route message to appropriate provider"""
251
        provider_name = provider.lower()
252
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        if provider_name not in self.providers:
254
            raise ValueError(f"Unsupported provider: {provider}")
255
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        provider_instance = self.providers[provider_name]
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        return provider_instance.send_message(model_id, messages, system_prompt, parameters)
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    def get_available_providers(self) -> List[str]:
260
        """Get list of configured providers"""
261
        return [name for name, provider in self.providers.items() if provider.api_key]
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def create_user_context(user_id: str, attributes: Dict[str, Any] = None) -> Context:
265
    """Create a LaunchDarkly context for a user"""
266
    builder = Context.builder(user_id)
267
    if attributes:
268
        for key, value in attributes.items():
269
            builder.set(key, value)
270
    return builder.build()
271
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273
def run_chatbot():
274
    """Main chatbot loop"""
275
    print("=" * 70)
276
    print("  Simple AI Chatbot with LaunchDarkly Targeting")
277
    print("=" * 70)
278
    print("\nSupporting: Anthropic Claude, OpenAI GPT, Google Gemini")
279
    print("Type 'exit' or 'quit' to end the conversation\n")
280
281
    # Initialize clients
282
    try:
283
        ld_ai_client = LaunchDarklyAIClient(
284
            sdk_key=os.getenv("LD_SDK_KEY", ""),
285
            agent_config_key=os.getenv("LAUNCHDARKLY_AGENT_CONFIG_KEY", "default-config")
286
        )
287
        ai_registry = AIProviderRegistry()
288
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        available = ai_registry.get_available_providers()
290
        logger.info(f"✓ Clients initialized. Available providers: {', '.join(available)}")
291
    except Exception as e:
292
        logger.error(f"Failed to initialize clients: {e}")
293
        return
294
295
    # Create user context
296
    user_context = create_user_context(
297
        user_id="demo-user-001",
298
        attributes={"name": "Demo User", "environment": "development"}
299
    )
300
301
    # Get initial config to show provider/model
302
    config = ld_ai_client.get_ai_config(user_context)
303
    logger.info(f"✓ Using {config.provider.name} with model {config.model.name}")
304
305
    conversation_history = []
306
307
    # Main chat loop
308
    while True:
309
        try:
310
            user_input = input("You: ").strip()
311
312
            if user_input.lower() in ['exit', 'quit', 'q']:
313
                print("\nGoodbye! Thanks for chatting.")
314
                break
315
316
            if not user_input:
317
                continue
318
319
            # Fetch fresh config from LaunchDarkly for each message
320
            config = ld_ai_client.get_ai_config(user_context)
321
322
            # Extract configuration
323
            provider = config.provider.name
324
            model_id = config.model.name
325
            system_prompt = config.messages[0].content if config.messages else "You are a helpful assistant."
326
327
328
            # Get model parameters
329
            model_params = config.model.parameters if hasattr(config.model, 'parameters') and config.model.parameters else {}
330
            parameters = {
331
                "temperature": model_params.get("temperature", 0.7),
332
                "max_tokens": model_params.get("max_tokens", 500)
333
            }
334
335
            # Add user message to history
336
            conversation_history.append({"role": "user", "content": user_input})
337
338
            # Send to AI provider
339
            print("\nAssistant: ", end="", flush=True)
340
341
            response = ai_registry.send_message(
342
                provider=provider,
343
                model_id=model_id,
344
                messages=conversation_history,
345
                system_prompt=system_prompt,
346
                parameters=parameters
347
            )
348
349
            print(response)
350
351
            # Add assistant response to history
352
            conversation_history.append({"role": "assistant", "content": response})
353
354
        except KeyboardInterrupt:
355
            print("\n\nInterrupted. Goodbye!")
356
            break
357
        except Exception as e:
358
            logger.error(f"Error in chat loop: {e}")
359
            print(f"\nError: {e}")
360
361
            # Provide helpful guidance for common errors
362
            if "API key not valid" in str(e) and "googleapis.com" in str(e):
363
                print("\n💡 Tip: For Google Gemini, you need an API key from Google AI Studio:")
364
                print("   1. Go to https://aistudio.google.com/app/apikey")
365
                print("   2. Click 'Get API Key' and create a new key")
366
                print("   3. Add it to your .env file as GEMINI_API_KEY=your-key-here")
367
            elif "API key" in str(e).lower():
368
                print("\n💡 Tip: Check that your API key is correct and has the necessary permissions.")
369
370
def run_chatbot_with_persona(persona: str = "business"):
371
    """
372
    Run chatbot with a specific persona context
373
374
    Args:
375
        persona: The persona to use (business, creative, or default)
376
    """
377
    print("=" * 70)
378
    print(f"  AI Chatbot - Persona: {persona.upper()}")
379
    print("=" * 70)
380
    print("\nType 'exit' to quit, 'switch' to change persona\n")
381
382
    # Initialize clients
383
    try:
384
        ld_ai_client = LaunchDarklyAIClient(
385
            sdk_key=os.getenv("LD_SDK_KEY", ""),
386
            agent_config_key=os.getenv("LAUNCHDARKLY_AGENT_CONFIG_KEY", "default-config")
387
        )
388
        ai_registry = AIProviderRegistry()
389
390
        available = ai_registry.get_available_providers()
391
        logger.info(f"✓ Clients initialized. Available providers: {', '.join(available)}")
392
    except Exception as e:
393
        logger.error(f"Failed to initialize clients: {e}")
394
        return False
395
396
    # Create user context with persona attribute
397
    user_context = create_user_context(
398
        user_id=f"{persona}-user-001",
399
        attributes={
400
            "persona": persona,
401
            "name": f"{persona.title()} User"
402
        }
403
    )
404
405
    # Conversation loop
406
    conversation_history = []
407
408
    while True:
409
        try:
410
            user_input = input("You: ").strip()
411
412
            if user_input.lower() in ['exit', 'quit']:
413
                print("\n👋 Goodbye!\n")
414
                break
415
416
            if user_input.lower() == 'switch':
417
                print("\n🔄 Switching persona...\n")
418
                return True
419
420
            if not user_input:
421
                continue
422
423
            # Fetch fresh config from LaunchDarkly for each message
424
            config = ld_ai_client.get_ai_config(user_context)
425
426
            # Extract configuration
427
            provider = config.provider.name
428
            model_id = config.model.name
429
            system_prompt = config.messages[0].content if config.messages else "You are a helpful assistant."
430
431
432
            # Get model parameters
433
            model_params = config.model.parameters if hasattr(config.model, 'parameters') and config.model.parameters else {}
434
            parameters = {
435
                "temperature": model_params.get("temperature", 0.7),
436
                "max_tokens": model_params.get("max_tokens", 500)
437
            }
438
439
            # Add user message to history
440
            conversation_history.append({"role": "user", "content": user_input})
441
442
            # Send to AI provider
443
            print("\nAssistant: ", end="", flush=True)
444
445
            response = ai_registry.send_message(
446
                provider=provider,
447
                model_id=model_id,
448
                messages=conversation_history,
449
                system_prompt=system_prompt,
450
                parameters=parameters
451
            )
452
453
            print(response + "\n")
454
455
            # Add assistant response to history
456
            conversation_history.append({"role": "assistant", "content": response})
457
458
        except KeyboardInterrupt:
459
            print("\n\n👋 Goodbye!\n")
460
            break
461
        except Exception as e:
462
            logger.error(f"Error in chat loop: {e}")
463
            print(f"\n❌ Error: {e}\n")
464
465
    return False
466
467
468
def main_with_personas():
469
    """Main entry point with persona selection"""
470
    print("\n" + "=" * 70)
471
    print("  LaunchDarkly AI Config - Persona Demo")
472
    print("=" * 70)
473
474
    personas = {
475
        "1": "business",
476
        "2": "creative",
477
        "3": None  # Default
478
    }
479
480
    while True:
481
        print("\nSelect a persona:")
482
        print("  1. Business (professional and concise)")
483
        print("  2. Creative (imaginative and engaging)")
484
        print("  3. Default (friendly and helpful)")
485
        print("  q. Quit")
486
487
        choice = input("\nYour choice (1-3, q): ").strip()
488
489
        if choice.lower() == 'q':
490
            print("\n👋 Goodbye!\n")
491
            break
492
493
        if choice not in personas:
494
            print("❌ Invalid choice. Please select 1-3 or q.")
495
            continue
496
497
        persona = personas[choice]
498
499
        # Run with selected persona or default
500
        if persona:
501
            should_switch = run_chatbot_with_persona(persona)
502
            if not should_switch:
503
                break
504
            # If should_switch is True, loop continues to persona selection
505
        else:
506
            run_chatbot()  # Run default chatbot (no persona context)
507
            break  # Default mode exits after session ends
508
509
if __name__ == "__main__":
510
    import sys
511
512
    # Check for LaunchDarkly configuration (optional - will use fallback if not provided)
513
    sdk_key = os.getenv("LD_SDK_KEY")
514
    config_key = os.getenv("LAUNCHDARKLY_AGENT_CONFIG_KEY", "default-config")
515
516
    if not sdk_key or sdk_key == "your-launchdarkly-sdk-key":
517
        logger.info("No LaunchDarkly SDK key found - using fallback configuration")
518
        logger.info("To use LaunchDarkly features, add LD_SDK_KEY to your .env file")
519
520
    # Check for at least one AI provider key
521
    provider_keys = ["ANTHROPIC_API_KEY", "OPENAI_API_KEY", "GEMINI_API_KEY"]
522
    if not any(os.getenv(key) for key in provider_keys):
523
        logger.error("No AI provider API keys found. Please add at least one:")
524
        for key in provider_keys:
525
            logger.error(f"  - {key}")
526
        exit(1)
527
528
    # Check if persona mode is requested
529
    if len(sys.argv) > 1 and sys.argv[1] == "--personas":
530
        main_with_personas()
531
    else:
532
        # Default behavior - run original chatbot
533
        run_chatbot()

1
"""
2
Simple AI Chatbot with LaunchDarkly AI Config
3
Complete LaunchDarkly integration with targeting and metrics
4
Tracks token usage, response times, and success rates
5
"""
6
7
import os
8
import logging
9
import time
10
from typing import Dict, List, Any, Tuple, Optional
11
from abc import ABC, abstractmethod
12
import dotenv
13
14
# LaunchDarkly imports
15
import ldclient
16
from ldclient import Context
17
from ldclient.config import Config
18
from ldai.client import LDAIClient
19
from ldai.models import AICompletionConfig, ModelConfig, LDMessage, ProviderConfig
20
21
# AI Provider imports
22
import anthropic
23
import openai
24
import google.genai as genai
25
26
# Set up logging
27
logging.basicConfig(
28
    level=logging.INFO,
29
    format='%(asctime)s - %(levelname)s - %(message)s'
30
)
31
logger = logging.getLogger(__name__)
32
33
# Suppress HTTP request logs from libraries
34
logging.getLogger("httpx").setLevel(logging.WARNING)
35
logging.getLogger("httpcore").setLevel(logging.WARNING)
36
logging.getLogger("openai").setLevel(logging.WARNING)
37
logging.getLogger("anthropic").setLevel(logging.WARNING)
38
39
# Load environment variables
40
dotenv.load_dotenv()
41
42
43
class LaunchDarklyAIClient:
44
    """Manages LaunchDarkly AI configuration"""
45
46
    def __init__(self, sdk_key: str, agent_config_key: str):
47
        """Initialize LaunchDarkly client"""
48
        self.sdk_key = sdk_key
49
        self.agent_config_key = agent_config_key
50
        self.ld_client = None
51
        self.ai_client = None
52
53
        # Only initialize if we have a valid SDK key
54
        if sdk_key and sdk_key != "your-launchdarkly-sdk-key" and not sdk_key.startswith("your-"):
55
            try:
56
                ldclient.set_config(Config(sdk_key))
57
                self.ld_client = ldclient.get()
58
                self.ai_client = LDAIClient(self.ld_client)
59
                # Check if client initialized successfully
60
                if not self.ld_client.is_initialized():
61
                    logger.info("LaunchDarkly client not initialized, will use fallback configuration")
62
                    self.ld_client = None
63
                    self.ai_client = None
64
            except Exception as e:
65
                logger.info(f"LaunchDarkly initialization skipped: {e}")
66
                self.ld_client = None
67
                self.ai_client = None
68
        else:
69
            logger.info("No valid LaunchDarkly SDK key provided, using fallback configuration")
70
71
    def get_ai_config(self, user_context: Context, variables: Dict[str, Any] = None) -> AICompletionConfig:
72
        """Get AI configuration for a specific user context"""
73
        fallback_config = self._get_fallback_config()
74
75
        if not self.ai_client:
76
            return fallback_config
77
78
        config = self.ai_client.completion_config(
79
            self.agent_config_key,
80
            user_context,
81
            fallback_config,
82
            variables or {}
83
        )
84
        return config
85
86
    def _get_fallback_config(self) -> AICompletionConfig:
87
        """Fallback configuration when LaunchDarkly is unavailable"""
88
        # Detect which provider is available
89
        provider_name = "anthropic"  # default
90
        model_name = "claude-3-haiku-20240307"
91
92
        if os.getenv("ANTHROPIC_API_KEY"):
93
            provider_name = "anthropic"
94
            model_name = "claude-3.5-haiku-20241022"
95
        elif os.getenv("OPENAI_API_KEY"):
96
            provider_name = "openai"
97
            model_name = "chatgpt-4o-latest"
98
        elif os.getenv("GEMINI_API_KEY"):
99
            provider_name = "google"
100
            model_name = "gemini-2.5-flash-lite"
101
        else:
102
            logger.warning("No AI provider API keys found for fallback configuration")
103
104
        return AICompletionConfig(
105
            key=self.agent_config_key,
106
            enabled=True,
107
            model=ModelConfig(
108
                name=model_name,
109
                parameters={"temperature": 0.7, "max_tokens": 500}
110
            ),
111
            messages=[LDMessage(
112
                role="system",
113
                content="You are a helpful AI assistant. Provide clear, concise, and friendly responses."
114
            )],
115
            provider=ProviderConfig(name=provider_name)
116
        )
117
118
119
class BaseAIProvider(ABC):
120
    """Base class for AI providers"""
121
122
    def __init__(self, api_key: Optional[str] = None):
123
        self.api_key = api_key
124
        self.client = self._initialize_client() if api_key else None
125
126
    @abstractmethod
127
    def _initialize_client(self):
128
        """Initialize the provider's client"""
129
        pass
130
131
    @abstractmethod
132
    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict, tracker=None) -> str:
133
        """Send message to the AI provider"""
134
        pass
135
136
    def format_messages(self, messages: List[Dict], system_prompt: str) -> List[Dict]:
137
        """Default message formatting (can be overridden by providers)"""
138
        formatted = [{"role": "system", "content": system_prompt}] if system_prompt else []
139
        formatted.extend([{"role": msg["role"], "content": msg["content"]} for msg in messages])
140
        return formatted
141
142
    def extract_params(self, params: Dict) -> Dict:
143
        """Extract common parameters"""
144
        return {
145
            "temperature": params.get("temperature", 0.7),
146
            "max_tokens": params.get("max_tokens", 500)
147
        }
148
149
150
class AnthropicProvider(BaseAIProvider):
151
    """Anthropic Claude provider"""
152
153
    def _initialize_client(self):
154
        return anthropic.Anthropic(api_key=self.api_key)
155
156
    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict, tracker=None) -> str:
157
        if not self.client:
158
            raise ValueError("Anthropic API key not configured")
159
160
        extracted_params = self.extract_params(params)
161
162
        if tracker:
163
            # Track API call duration and response metrics
164
            response = tracker.track_duration_of(
165
                lambda: self.client.messages.create(
166
                    model=model,
167
                    max_tokens=extracted_params["max_tokens"],
168
                    temperature=extracted_params["temperature"],
169
                    system=system_prompt,
170
                    messages=messages
171
                )
172
            )
173
174
            # Track token usage if available
175
            if hasattr(response, 'usage'):
176
                from ldai.tracker import TokenUsage
177
                token_usage = TokenUsage(
178
                    input=response.usage.input_tokens,
179
                    output=response.usage.output_tokens,
180
                    total=response.usage.input_tokens + response.usage.output_tokens
181
                )
182
                tracker.track_tokens(token_usage)
183
184
            tracker.track_success()
185
        else:
186
            response = self.client.messages.create(
187
                model=model,
188
                max_tokens=extracted_params["max_tokens"],
189
                temperature=extracted_params["temperature"],
190
                system=system_prompt,
191
                messages=messages
192
            )
193
194
        return response.content[0].text
195
196
197
class OpenAIProvider(BaseAIProvider):
198
    """OpenAI GPT provider"""
199
200
    def _initialize_client(self):
201
        return openai.OpenAI(api_key=self.api_key)
202
203
    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict, tracker=None) -> str:
204
        if not self.client:
205
            raise ValueError("OpenAI API key not configured")
206
207
        formatted_messages = self.format_messages(messages, system_prompt)
208
        extracted_params = self.extract_params(params)
209
210
        if tracker:
211
            # Use built-in OpenAI metrics tracking
212
            response = tracker.track_openai_metrics(
213
                lambda: self.client.chat.completions.create(
214
                    model=model,
215
                    messages=formatted_messages,
216
                    **extracted_params
217
                )
218
            )
219
        else:
220
            response = self.client.chat.completions.create(
221
                model=model,
222
                messages=formatted_messages,
223
                **extracted_params
224
            )
225
226
        return response.choices[0].message.content
227
228
229
class GoogleProvider(BaseAIProvider):
230
    """Google Gemini provider"""
231
232
    def _initialize_client(self):
233
        # New SDK uses client instantiation with API key
234
        # The environment variable GEMINI_API_KEY is automatically picked up
235
        if self.api_key:
236
            import os
237
            os.environ['GEMINI_API_KEY'] = self.api_key
238
        return genai.Client()
239
240
    def send_message(self, model: str, messages: List[Dict], system_prompt: str, params: Dict, tracker=None) -> str:
241
        if not self.client:
242
            raise ValueError("Google API key not configured")
243
244
        extracted_params = self.extract_params(params)
245
246
        # Format conversation with system prompt
247
        contents = []
248
249
        # Add system prompt as context
250
        if system_prompt:
251
            contents.append(f"{system_prompt}\n")
252
253
        # Add conversation history
254
        for msg in messages:
255
            role = "User" if msg["role"] == "user" else "Assistant"
256
            contents.append(f"{role}: {msg['content']}")
257
258
        full_prompt = "\n".join(contents)
259
260
        # Manual metrics tracking for Google Gemini
261
        start_time = time.time()
262
263
        # Use the new client API
264
        response = self.client.models.generate_content(
265
            model=model,
266
            contents=full_prompt,
267
            config={
268
                "temperature": extracted_params["temperature"],
269
                "max_output_tokens": extracted_params["max_tokens"],
270
            }
271
        )
272
273
        duration = time.time() - start_time
274
275
        if tracker:
276
            # Track duration and success
277
            tracker.track_duration(duration)
278
            tracker.track_success()
279
280
        return response.text
281
282
283
class AIProviderRegistry:
284
    """Registry for AI providers with automatic initialization"""
285
286
    def __init__(self):
287
        self.providers = {
288
            "anthropic": AnthropicProvider(os.getenv("ANTHROPIC_API_KEY")),
289
            "openai": OpenAIProvider(os.getenv("OPENAI_API_KEY")),
290
            "google": GoogleProvider(os.getenv("GEMINI_API_KEY"))
291
        }
292
293
    def send_message(self, provider: str, model_id: str, messages: List[Dict],
294
                     system_prompt: str, parameters: Dict, tracker=None) -> str:
295
        """Route message to appropriate provider"""
296
        provider_name = provider.lower()
297
298
        if provider_name not in self.providers:
299
            raise ValueError(f"Unsupported provider: {provider}")
300
301
        provider_instance = self.providers[provider_name]
302
        return provider_instance.send_message(model_id, messages, system_prompt, parameters, tracker)
303
304
    def get_available_providers(self) -> List[str]:
305
        """Get list of configured providers"""
306
        return [name for name, provider in self.providers.items() if provider.api_key]
307
308
309
def create_user_context(user_id: str, attributes: Dict[str, Any] = None) -> Context:
310
    """Create a LaunchDarkly context for a user"""
311
    builder = Context.builder(user_id)
312
    if attributes:
313
        for key, value in attributes.items():
314
            builder.set(key, value)
315
    return builder.build()
316
317
318
def run_chatbot():
319
    """Main chatbot loop with full tracking"""
320
    print("=" * 70)
321
    print("  Simple AI Chatbot with LaunchDarkly AI Config")
322
    print("=" * 70)
323
    print("\nSupporting: Anthropic Claude, OpenAI GPT, Google Gemini")
324
    print("Type 'exit' or 'quit' to end the conversation\n")
325
326
    # Initialize clients
327
    try:
328
        ld_ai_client = LaunchDarklyAIClient(
329
            sdk_key=os.getenv("LD_SDK_KEY", ""),
330
            agent_config_key=os.getenv("LAUNCHDARKLY_AGENT_CONFIG_KEY", "default-config")
331
        )
332
        ai_registry = AIProviderRegistry()
333
334
        available = ai_registry.get_available_providers()
335
        logger.info(f"✓ Clients initialized. Available providers: {', '.join(available)}")
336
    except Exception as e:
337
        logger.error(f"Failed to initialize clients: {e}")
338
        return
339
340
    # Create user context
341
    user_context = create_user_context(
342
        user_id="demo-user-001",
343
        attributes={"name": "Demo User", "environment": "development"}
344
    )
345
346
    # Get initial config to show provider/model
347
    config = ld_ai_client.get_ai_config(user_context)
348
    logger.info(f"✓ Using {config.provider.name} with model {config.model.name}")
349
350
    conversation_history = []
351
352
    # Main chat loop
353
    while True:
354
        try:
355
            user_input = input("You: ").strip()
356
357
            if user_input.lower() in ['exit', 'quit', 'q']:
358
                print("\nGoodbye! Thanks for chatting.")
359
                break
360
361
            if not user_input:
362
                continue
363
364
            # Fetch fresh config from LaunchDarkly for each message
365
            config = ld_ai_client.get_ai_config(user_context)
366
367
            # Extract configuration
368
            provider = config.provider.name
369
            model_id = config.model.name
370
            system_prompt = config.messages[0].content if config.messages else "You are a helpful assistant."
371
            tracker = config.tracker if hasattr(config, 'tracker') else None
372
373
            # Get model parameters
374
            model_params = config.model.parameters if hasattr(config.model, 'parameters') and config.model.parameters else {}
375
            parameters = {
376
                "temperature": model_params.get("temperature", 0.7),
377
                "max_tokens": model_params.get("max_tokens", 500)
378
            }
379
380
            # Add user message to history
381
            conversation_history.append({"role": "user", "content": user_input})
382
383
            # Send to AI provider
384
            print("\nAssistant: ", end="", flush=True)
385
386
            response = ai_registry.send_message(
387
                provider=provider,
388
                model_id=model_id,
389
                messages=conversation_history,
390
                system_prompt=system_prompt,
391
                parameters=parameters,
392
                tracker=tracker
393
            )
394
395
            print(response)
396
397
            # Add assistant response to history
398
            conversation_history.append({"role": "assistant", "content": response})
399
400
        except KeyboardInterrupt:
401
            print("\n\nInterrupted. Goodbye!")
402
            break
403
        except Exception as e:
404
            logger.error(f"Error in chat loop: {e}")
405
            print(f"\nError: {e}")
406
407
            # Provide helpful guidance for common errors
408
            if "API key not valid" in str(e) and "googleapis.com" in str(e):
409
                print("\n💡 Tip: For Google Gemini, you need an API key from Google AI Studio:")
410
                print("   1. Go to https://aistudio.google.com/app/apikey")
411
                print("   2. Click 'Get API Key' and create a new key")
412
                print("   3. Add it to your .env file as GEMINI_API_KEY=your-key-here")
413
            elif "API key" in str(e).lower():
414
                print("\n💡 Tip: Check that your API key is correct and has the necessary permissions.")
415
416
def run_chatbot_with_persona(persona: str = "business"):
417
    """
418
    Run chatbot with a specific persona context
419
420
    Args:
421
        persona: The persona to use (business, creative, or default)
422
    """
423
    print("=" * 70)
424
    print(f"  AI Chatbot - Persona: {persona.upper()}")
425
    print("=" * 70)
426
    print("\nType 'exit' to quit, 'switch' to change persona\n")
427
428
    # Initialize clients
429
    try:
430
        ld_ai_client = LaunchDarklyAIClient(
431
            sdk_key=os.getenv("LD_SDK_KEY", ""),
432
            agent_config_key=os.getenv("LAUNCHDARKLY_AGENT_CONFIG_KEY", "default-config")
433
        )
434
        ai_registry = AIProviderRegistry()
435
436
        available = ai_registry.get_available_providers()
437
        logger.info(f"✓ Clients initialized. Available providers: {', '.join(available)}")
438
    except Exception as e:
439
        logger.error(f"Failed to initialize clients: {e}")
440
        return False
441
442
    # Create user context with persona attribute
443
    user_context = create_user_context(
444
        user_id=f"{persona}-user-001",
445
        attributes={
446
            "persona": persona,
447
            "name": f"{persona.title()} User"
448
        }
449
    )
450
451
    # Conversation loop
452
    conversation_history = []
453
454
    while True:
455
        try:
456
            user_input = input("You: ").strip()
457
458
            if user_input.lower() in ['exit', 'quit']:
459
                print("\n👋 Goodbye!\n")
460
                break
461
462
            if user_input.lower() == 'switch':
463
                print("\n🔄 Switching persona...\n")
464
                return True
465
466
            if not user_input:
467
                continue
468
469
            # Fetch fresh config from LaunchDarkly for each message
470
            config = ld_ai_client.get_ai_config(user_context)
471
472
            # Extract configuration
473
            provider = config.provider.name
474
            model_id = config.model.name
475
            system_prompt = config.messages[0].content if config.messages else "You are a helpful assistant."
476
            tracker = config.tracker if hasattr(config, 'tracker') else None
477
478
            # Get model parameters
479
            model_params = config.model.parameters if hasattr(config.model, 'parameters') and config.model.parameters else {}
480
            parameters = {
481
                "temperature": model_params.get("temperature", 0.7),
482
                "max_tokens": model_params.get("max_tokens", 500)
483
            }
484
485
            # Add user message to history
486
            conversation_history.append({"role": "user", "content": user_input})
487
488
            # Send to AI provider
489
            print("\nAssistant: ", end="", flush=True)
490
491
            response = ai_registry.send_message(
492
                provider=provider,
493
                model_id=model_id,
494
                messages=conversation_history,
495
                system_prompt=system_prompt,
496
                parameters=parameters,
497
                tracker=tracker
498
            )
499
500
            print(response + "\n")
501
502
            # Add assistant response to history
503
            conversation_history.append({"role": "assistant", "content": response})
504
505
        except KeyboardInterrupt:
506
            print("\n\n👋 Goodbye!\n")
507
            break
508
        except Exception as e:
509
            logger.error(f"Error in chat loop: {e}")
510
            print(f"\n❌ Error: {e}\n")
511
512
    return False
513
514
515
def main_with_personas():
516
    """Main entry point with persona selection"""
517
    print("\n" + "=" * 70)
518
    print("  LaunchDarkly AI Config - Persona Demo")
519
    print("=" * 70)
520
521
    personas = {
522
        "1": "business",
523
        "2": "creative",
524
        "3": None  # Default
525
    }
526
527
    while True:
528
        print("\nSelect a persona:")
529
        print("  1. Business (professional and concise)")
530
        print("  2. Creative (imaginative and engaging)")
531
        print("  3. Default (friendly and helpful)")
532
        print("  q. Quit")
533
534
        choice = input("\nYour choice (1-3, q): ").strip()
535
536
        if choice.lower() == 'q':
537
            print("\n👋 Goodbye!\n")
538
            break
539
540
        if choice not in personas:
541
            print("❌ Invalid choice. Please select 1-3 or q.")
542
            continue
543
544
        persona = personas[choice]
545
546
        # Run with selected persona or default
547
        if persona:
548
            should_switch = run_chatbot_with_persona(persona)
549
            if not should_switch:
550
                break
551
            # If should_switch is True, loop continues to persona selection
552
        else:
553
            run_chatbot()  # Run default chatbot (no persona context)
554
            break  # Default mode exits after session ends
555
556
if __name__ == "__main__":
557
    import sys
558
559
    # Check for LaunchDarkly configuration (optional - will use fallback if not provided)
560
    sdk_key = os.getenv("LD_SDK_KEY")
561
    config_key = os.getenv("LAUNCHDARKLY_AGENT_CONFIG_KEY", "default-config")
562
563
    if not sdk_key or sdk_key == "your-launchdarkly-sdk-key":
564
        logger.info("No LaunchDarkly SDK key found - using fallback configuration")
565
        logger.info("To use LaunchDarkly features, add LD_SDK_KEY to your .env file")
566
567
    # Check for at least one AI provider key
568
    provider_keys = ["ANTHROPIC_API_KEY", "OPENAI_API_KEY", "GEMINI_API_KEY"]
569
    if not any(os.getenv(key) for key in provider_keys):
570
        logger.error("No AI provider API keys found. Please add at least one:")
571
        for key in provider_keys:
572
            logger.error(f"  - {key}")
573
        exit(1)
574
575
    # Check if persona mode is requested
576
    if len(sys.argv) > 1 and sys.argv[1] == "--personas":
577
        main_with_personas()
578
    else:
579
        # Default behavior - run original chatbot
580
        run_chatbot()