# config.py
import os
import secrets
from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict
from passlib.context import CryptContext
from typing import Optional

# --- Pydantic Settings (La Config Inmutable y Validada) ---
class GlobalSettings(BaseSettings):
    """Configuración global de la aplicación."""
    model_config = SettingsConfigDict(env_ignore_empty=True, extra='ignore')
    
    JWT_SECRET_KEY: str = Field(default_factory=lambda: os.environ.get("JWT_SECRET_KEY", secrets.token_hex(256)))
    GROQ_API_KEY: Optional[str] = os.environ.get("GROQ_API_KEY")
    GEMINI_API_KEY: Optional[str] = os.environ.get("GEMINI_API_KEY")
    
    DB_PATH: str = "data/omega_modular_argentina.db"
    TOKEN_EXPIRE_MINUTES: int = 2880 
    
    RATE_LIMIT_WINDOW: int = 45 
    RATE_LIMIT_REQUESTS: int = 8 
    AI_TIMEOUT_SECONDS: float = 8.0 

SETTINGS = GlobalSettings()
pwd_context = CryptContext(schemes=["argon2"], deprecated="auto")