from pydantic_settings import BaseSettings
from typing import Optional
import os
from dotenv import load_dotenv

load_dotenv()

class Settings(BaseSettings):
    # API Keys
    COHERE_API_KEY: str = os.getenv('COHERE_API_KEY', '')
    PINECONE_API_KEY: str = os.getenv('PINECONE_API_KEY', '')
    
    # Model Settings
    MODEL_NAME: str = "facebook/opt-350m"  # Using the finetuned model
    EMBEDDING_MODEL: str = "embed-english-v3.0"
    
    # Vector Store Settings
    VECTOR_DIMENSION: int = 768  # Default dimension for Cohere embeddings
    MAX_SEARCH_RESULTS: int = 5
    
    # Pinecone Settings
    PINECONE_ENVIRONMENT: str = os.getenv('PINECONE_ENVIRONMENT', 'us-west1-gcp')
    PINECONE_INDEX_NAME: str = os.getenv('PINECONE_INDEX_NAME', 'marketing-assistant')
    
    # Content Generation Settings
    MAX_CONTENT_LENGTH: int = 500
    TEMPERATURE: float = 0.7
    TOP_P: float = 0.9
    
    # Brand Style Settings
    BRAND_GUIDELINES_PATH: str = "data/style_guidelines/brand_guidelines.json"
    TONE_KEYWORDS_PATH: str = "data/style_guidelines/tone_keywords.json"
    
    # Storage Settings
    VECTOR_STORE_PATH: str = "data/vector_store"
    PAST_CAMPAIGNS_PATH: str = "data/past_campaigns"
    USER_QUERIES_PATH: str = "data/user_queries"
    
    # Finetuned Model Settings
    FINETUNED_MODEL_PATH: str = "../finetuned_model"
    
    class Config:
        env_file = ".env"
        case_sensitive = True

# Create global settings instance
settings = Settings()