from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    database_url: str = "postgresql+asyncpg://erowid:erowid@erowid-db:5432/erowid"
    database_url_sync: str = "postgresql://erowid:erowid@erowid-db:5432/erowid"

    llm_provider: str = "ollama"  # ollama | claude | openai

    ollama_base_url: str = "http://ollama:11434"
    ollama_embed_model: str = "nomic-embed-text"
    ollama_chat_model: str = "llama3.2:1b"

    anthropic_api_key: str = ""
    openai_api_key: str = ""

    app_host: str = "0.0.0.0"
    app_port: int = 8000

    # Scraper settings
    scrape_delay: float = 3.0  # seconds between requests (be polite to Erowid)
    scrape_batch_size: int = 50

    # RAG settings
    chunk_size: int = 500  # tokens per chunk
    chunk_overlap: int = 50  # token overlap between chunks
    retrieval_top_k: int = 3  # number of chunks to retrieve

    class Config:
        env_file = ".env"
        extra = "ignore"


settings = Settings()