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use std::convert::Infallible;
use axum::{
extract::{Path, State},
response::{
sse::{Event, KeepAlive},
Sse,
},
routing::get,
Router,
};
use futures::{Stream, StreamExt};
use crate::{AppState, Error};
pub fn router() -> Router<AppState> {
axum::Router::new()
.route("/", get(events))
.route("/:name", get(service_events))
}
pub async fn events(
State(state): State<AppState>,
) -> Result<Sse<impl Stream<Item = Result<Event, Error>>>, Error> {
let stream = state.streams().map(|(name, status)| {
let data = serde_json::to_string(&status)?;
Ok(Event::default().event(name).data(data))
});
Ok(Sse::new(stream).keep_alive(KeepAlive::default()))
}
pub async fn service_events(
Path(name): Path<String>,
State(state): State<AppState>,
) -> Result<Sse<impl Stream<Item = Result<Event, Infallible>>>, Error> {
let stream = state
.stream(&name)
.ok_or_else(|| Error::ServiceNotFound(name))?
.map(Event::from)
.map(Ok);
Ok(Sse::new(stream).keep_alive(KeepAlive::default()))
}
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