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use serde::{Deserialize, Deserializer, Serialize, Serializer};
use super::Id;
use std::hash::{Hash, Hasher};
#[derive(Debug)]
pub enum AnonymizableId<T> {
Anonymized,
Id(Id<T>),
}
impl<T> Clone for AnonymizableId<T> {
fn clone(&self) -> Self {
match self {
Self::Anonymized => Self::Anonymized,
Self::Id(id) => Self::Id(*id),
}
}
}
impl<T> Copy for AnonymizableId<T> {}
impl<'de, T> Deserialize<'de> for AnonymizableId<T> {
fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
Ok(Id::deserialize(deserializer).map_or(Self::Anonymized, Self::Id))
}
}
impl<T> Eq for AnonymizableId<T> {}
impl<T> PartialEq for AnonymizableId<T> {
fn eq(&self, other: &Self) -> bool {
match (self, other) {
(Self::Anonymized, Self::Anonymized) => true,
(Self::Id(id), Self::Id(other_id)) => id == other_id,
(_, _) => false,
}
}
}
impl<T> Hash for AnonymizableId<T> {
fn hash<U: Hasher>(&self, state: &mut U) {
match self {
Self::Anonymized => state.write_u64(0),
Self::Id(id) => state.write_u64(id.value.get()),
}
}
}
impl<T> Serialize for AnonymizableId<T> {
fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
match self {
Self::Anonymized => serializer.serialize_newtype_struct("AnonymizableId", "0"),
Self::Id(id) => serializer.serialize_newtype_struct("AnonymizableId", &id.to_string()),
}
}
}