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use base64::{Engine, engine::general_purpose::URL_SAFE};
use p256::ecdsa::VerifyingKey;
use serde::Serialize;
use crate::event::{Instant, Sequenced};
#[derive(Clone, Debug, Eq, PartialEq, serde::Serialize)]
#[serde(tag = "event", rename_all = "snake_case")]
pub enum Event {
Changed(Changed),
}
impl Sequenced for Event {
fn instant(&self) -> Instant {
match self {
Self::Changed(event) => event.instant(),
}
}
}
#[derive(Clone, Debug, Eq, PartialEq, serde::Serialize)]
pub struct Changed {
#[serde(flatten)]
pub instant: Instant,
#[serde(serialize_with = "as_vapid_key")]
pub key: VerifyingKey,
}
impl From<Changed> for Event {
fn from(event: Changed) -> Self {
Self::Changed(event)
}
}
impl Sequenced for Changed {
fn instant(&self) -> Instant {
self.instant
}
}
fn as_vapid_key<S>(key: &VerifyingKey, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
let key = key.to_sec1_bytes();
let key = URL_SAFE.encode(key);
key.serialize(serializer)
}
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