from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    PROJECT_NAME: str = "债务管理系统"
    API_V1_PREFIX: str = "/api/v1"
    DATABASE_URL: str = "postgresql+asyncpg://postgres:postgres@db:5432/debt_manager"
    REDIS_URL: str = "redis://redis:6379/0"
    SECRET_KEY: str = "562fa55e5e0cea1e00ff645be1da4f7c932439d97de7ffacd3d95156d9ccd7af"
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
    REFRESH_TOKEN_EXPIRE_DAYS: int = 7
    CORS_ORIGINS: list[str] = ["http://localhost", "http://localhost:80", "http://localhost:806"]
    ADMIN_EMAIL: str = "admin@example.com"
    ADMIN_PASSWORD: str = "Adm1n!2026#Str0ng"

    SMTP_HOST: str = ""
    SMTP_PORT: int = 465
    SMTP_USER: str = ""
    SMTP_PASSWORD: str = ""
    SMTP_FROM: str = ""
    SMTP_USE_TLS: bool = True
    NOTIFICATION_CHECK_INTERVAL_MINUTES: int = 60
    REMINDER_DAYS_BEFORE: int = 7

    class Config:
        env_file = ".env"


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