use std::borrow::Cow;

#[derive(Debug, Error)]
pub enum GroupError {
    #[error("User is admin")]
    UserIsAdmin,
    #[error("User is banned")]
    UserIsBanned,
    #[error("User opted out from the group")]
    UserOptedOut,
    #[error("Server could not be banned because there are admin users on it")]
    AdminsOnServer,
    #[error("Config error: {0}")]
    BadConfig(Cow<'static, str>),
    #[error("API request timed out")]
    ApiTimeout,
    #[error(transparent)]
    IoError(#[from] std::io::Error),
    #[error(transparent)]
    Serializer(#[from] serde_json::Error),
    #[error(transparent)]
    Serializer5(#[from] json5::Error),
    #[error(transparent)]
    Elefren(#[from] elefren::Error),
}

// this is for tests
impl PartialEq for GroupError {
    fn eq(&self, other: &Self) -> bool {
        matches!(
            (self, other),
            (Self::UserIsAdmin, Self::UserIsAdmin)
                | (Self::UserIsBanned, Self::UserIsBanned)
                | (Self::AdminsOnServer, Self::AdminsOnServer)
                | (Self::BadConfig(_), Self::BadConfig(_))
        )
    }
}