import os
from pydantic import BaseSettings
from typing import List, Optional

class Settings(BaseSettings):
    PROJECT_NAME: str = "TradingAgents Backend"
    API_V1_STR: str = "/api/v1"

    # Security
    SECRET_KEY: str = os.getenv("SECRET_KEY", "a_very_secret_key")
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 8  # 8 days
    ALGORITHM: str = "HS256"

    # Database
    DATABASE_URL: str = os.getenv("DATABASE_URL", "sqlite:///./tradingagents.db")

    # OpenAI
    OPENAI_API_KEY: str = os.getenv("OPENAI_API_KEY", "")

    # CORS
    CORS_ALLOWED_ORIGINS: List[str] = os.getenv("CORS_ALLOWED_ORIGINS", "http://localhost:3000,http://127.0.0.1:3000").split(',')

    class Config:
        case_sensitive = True

settings = Settings()