import os
from pathlib import Path
from dotenv import load_dotenv

# Load environment variables from .env file
env_path = Path('.') / '.env'
load_dotenv(dotenv_path=env_path)

# OpenAI Configuration
OPENAI_API_KEY = os.getenv("OPENAI_API_KEY")
OPENAI_MODEL_NAME = os.getenv("OPENAI_MODEL_NAME", "gpt-5-mini")

AZURE_API_KEY = os.getenv("AZURE_API_KEY")
AZURE_API_BASE = os.getenv("AZURE_API_BASE")
AZURE_API_VERSION = os.getenv("AZURE_API_VERSION")

# Langfuse Configuration
LANGFUSE_PUBLIC_KEY = os.getenv("LANGFUSE_PUBLIC_KEY")
LANGFUSE_SECRET_KEY = os.getenv("LANGFUSE_SECRET_KEY")
LANGFUSE_HOST = os.getenv("LANGFUSE_HOST", "https://cloud.langfuse.com")
LANGFUSE_AUTH = ""
if LANGFUSE_PUBLIC_KEY and LANGFUSE_SECRET_KEY:
    import base64
    LANGFUSE_AUTH = base64.b64encode(f"{LANGFUSE_PUBLIC_KEY}:{LANGFUSE_SECRET_KEY}".encode()).decode()

# Other API Keys
ANTHROPIC_API_KEY = os.getenv("ANTHROPIC_API_KEY")

# Database Configuration
DB_URI = os.getenv("DB_URI", "sqlite:///agent_monitoring.db")

# Function to validate configuration
def validate_config():
    """Validates that all required environment variables are set"""
    required_vars = [
        ("OPENAI_API_KEY", OPENAI_API_KEY),
    ]
    
    missing_vars = [var_name for var_name, var_value in required_vars if not var_value]
    
    if missing_vars:
        missing_vars_str = ", ".join(missing_vars)
        print(f"Missing required environment variables: {missing_vars_str}")
        print(f"Please set them in the .env file or as environment variables")
        return False
    
    return True