from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict


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

    app_name: str = "X2WeChat Studio"
    openai_api_key: str | None = Field(default=None, alias="OPENAI_API_KEY")
    openai_base_url: str | None = Field(default=None, alias="OPENAI_BASE_URL")
    openai_model: str = Field(default="gpt-4.1-mini", alias="OPENAI_MODEL")

    wechat_appid: str | None = Field(default=None, alias="WECHAT_APPID")
    wechat_secret: str | None = Field(default=None, alias="WECHAT_SECRET")
    wechat_author: str = Field(default="AI 编辑部", alias="WECHAT_AUTHOR")

    im_webhook_url: str | None = Field(default=None, alias="IM_WEBHOOK_URL")
    im_secret: str | None = Field(default=None, alias="IM_SECRET")


settings = Settings()