from pydantic_settings import BaseSettings
from typing import Optional
from functools import lru_cache


class Settings(BaseSettings):
    # Japi Server 配置
    host: str = "0.0.0.0"
    port: int = 8113
    debug: bool = False

    # API路由配置
    router_prefix: str = "/jmidjourney"
    generate_route: str = "/generate"  # 保留用于兼容
    api_name: str = "jmidjourney"  # 默认API名称

    upload_url: str = "http://images.jingrow.com:8080/api/v1/image"
    
    # VectorEngine API 配置
    vectorengine_api_url: str = "https://api.vectorengine.ai"
    vectorengine_token: Optional[str] = None
    vectorengine_max_polling_attempts: int = 120  # 最大轮询次数
    vectorengine_polling_interval: int = 3  # 轮询间隔（秒）
    
    # 图片保存配置
    save_dir: str = "../jfile/files"
    # Japi 静态资源下载URL
    download_url: str = "https://api.jingrow.com/files"

    # Jingrow Jcloud API 配置
    jingrow_api_url: str = "https://console.jingrow.com"
    jingrow_api_key: Optional[str] = None
    jingrow_api_secret: Optional[str] = None
    
    # 代理配置（用于下载外部图片）
    http_proxy: Optional[str] = None
    https_proxy: Optional[str] = None
    
    # 超时设置（秒）
    request_timeout: int = 30

    class Config:
        env_file = ".env"


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


# 创建全局配置实例
settings = get_settings()