use crate::{
error::Error,
response::{Code, Response, SubFunction},
utils, Configuration, LinkCtrlType, ResponseData, Service,
};
use std::{collections::HashSet, sync::LazyLock};
pub static LINK_CTRL_NEGATIVES: LazyLock<HashSet<Code>> = LazyLock::new(|| {
HashSet::from([
Code::SubFunctionNotSupported,
Code::IncorrectMessageLengthOrInvalidFormat,
Code::ConditionsNotCorrect,
Code::RequestSequenceError,
Code::RequestOutOfRange,
])
});
#[derive(Debug, Clone, Eq, PartialEq)]
pub struct LinkCtrl {
pub data: Vec<u8>, }
impl From<LinkCtrl> for Vec<u8> {
fn from(v: LinkCtrl) -> Self {
v.data
}
}
impl ResponseData for LinkCtrl {
fn new_response<T: AsRef<[u8]>>(
data: T,
sub_func: Option<u8>,
_: &Configuration,
) -> Result<Response, Error> {
let data = data.as_ref();
match sub_func {
Some(sub_func) => {
let _ = LinkCtrlType::try_from(sub_func)?;
let data_len = data.len();
utils::data_length_check(data_len, 0, true)?;
Ok(Response {
service: Service::LinkCtrl,
negative: false,
sub_func: Some(SubFunction::new(sub_func)),
data: data.to_vec(),
})
}
None => Err(Error::SubFunctionError(Service::LinkCtrl)),
}
}
}
impl TryFrom<(&Response, &Configuration)> for LinkCtrl {
type Error = Error;
fn try_from((resp, _): (&Response, &Configuration)) -> Result<Self, Self::Error> {
let service = resp.service();
if service != Service::LinkCtrl || resp.sub_func.is_none() {
return Err(Error::ServiceError(service));
}
Ok(Self {
data: resp.data.clone(),
})
}
}