from functools import lru_cache

from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env", extra="ignore")

    database_url: str = "sqlite:///./pk-lab.db"
    session_ttl_seconds: int = 60 * 60 * 24 * 30
    cors_origins: str = "http://localhost:3000,http://localhost:3002"
    public_base_url: str = "http://localhost:18082"
    test_auth_enabled: bool = False
    xhs_token_url: str = "https://miniapp.xiaohongshu.com/api/rmp/token"
    xhs_session_url: str = "https://miniapp.xiaohongshu.com/api/rmp/session"
    xhs_hub_app_id: str = ""
    xhs_hub_app_secret: str = Field(default="", repr=False)
    xhs_rice_app_id: str = ""
    xhs_rice_app_secret: str = Field(default="", repr=False)

    @property
    def cors_origin_list(self) -> list[str]:
        return [item.strip() for item in self.cors_origins.split(",") if item.strip()]

    def app_credentials(self, app_key: str) -> tuple[str, str]:
        if app_key == "hub":
            return self.xhs_hub_app_id, self.xhs_hub_app_secret
        if app_key == "rice":
            return self.xhs_rice_app_id, self.xhs_rice_app_secret
        raise ValueError("unknown app_key")


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