from functools import lru_cache
from typing import Optional

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    app_name: str = "AI Agent Admin"
    env: str = "dev"
    debug: bool = False
    app_host: str = "127.0.0.1"
    app_port: int = 18083
    database_url: str = "postgresql+asyncpg://ai_agent_admin:ai_agent_admin@127.0.0.1:5432/ai_agent_admin"
    redis_url: Optional[str] = "redis://127.0.0.1:6379/3"
    jwt_secret_key: str = "change-me-in-production"
    jwt_algorithm: str = "HS256"
    access_token_expire_minutes: int = 1440
    cors_origins: str = "*"
    seed_admin_email: str = "admin@ai-agent.local"
    seed_admin_password: str = "admin123456"

    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")


@lru_cache
def get_settings() -> Settings:
    return Settings()


settings = get_settings()