use itertools::process_results;
use serde::{Deserialize, Serialize};
use crate::{cache::Value, value::{FromValue, ToStringOrStringSet}};
#[derive(Eq, PartialEq, Serialize, Deserialize, Default)]
pub struct ValueSet<T>(Vec<T>)
where
T: ToStringOrStringSet + Eq + PartialEq;
impl<T> From<Vec<T>> for ValueSet<T>
where
T: ToStringOrStringSet + Eq + PartialEq,
{
fn from(value: Vec<T>) -> Self {
Self(value)
}
}
impl<T> ValueSet<T>
where
T: ToStringOrStringSet + Eq + PartialEq,
{
pub fn iter(&self) -> impl Iterator<Item = &T> {
self.0.iter()
}
pub fn len(&self) -> usize {
self.0.len()
}
pub fn is_empty(&self) -> bool {
self.0.is_empty()
}
}
impl<T> IntoIterator for ValueSet<T>
where
T: ToStringOrStringSet + Eq + PartialEq,
{
type Item = T;
type IntoIter = std::vec::IntoIter<T>;
fn into_iter(self) -> Self::IntoIter {
self.0.into_iter()
}
}
impl<T> FromIterator<T> for ValueSet<T>
where
T: ToStringOrStringSet + Eq + PartialEq,
{
fn from_iter<I: IntoIterator<Item = T>>(iter: I) -> Self {
Self(iter.into_iter().collect())
}
}
impl<T> FromValue for ValueSet<T>
where
T: FromValue + ToStringOrStringSet + Eq + PartialEq,
{
fn from_value_opt(value: &crate::cache::Value) -> crate::ntds::Result<Option<Self>>
where
Self: Sized,
{
match value {
Value::Multi(values) => {
match process_results(values.iter().map(T::from_value_opt), |items| {
items.flatten().collect()
}) {
Ok(values) => Ok(Some(values)),
Err(why) => {
log::error!(
"error while parsing values of type '{}': {why}",
std::any::type_name::<T>()
);
Err(why)
}
}
}
value => Ok(Some(Self(T::from_value_opt(value)?.into_iter().collect()))),
}
}
}