common/emgauwa-controller/src/app_state.rs

75 lines
1.5 KiB
Rust

use std::sync::Arc;
use actix::{Actor, Context, Handler, Message};
use emgauwa_lib::errors::EmgauwaError;
use emgauwa_lib::models::Controller;
use futures::executor::block_on;
use sqlx::{Pool, Sqlite};
use tokio::sync::Notify;
#[derive(Message)]
#[rtype(result = "Result<(), EmgauwaError>")]
pub struct Reload {}
#[derive(Message)]
#[rtype(result = "Controller")]
pub struct GetThis {}
#[derive(Message)]
#[rtype(result = "Arc<Notify>")]
pub struct GetNotifier {}
pub struct AppState {
pub pool: Pool<Sqlite>,
pub this: Controller,
pub notifier: Arc<Notify>,
}
impl AppState {
pub fn new(pool: Pool<Sqlite>, this: Controller) -> AppState {
AppState {
pool,
this,
notifier: Arc::new(Notify::new()),
}
}
pub fn notify_change(&self) {
self.notifier.notify_one();
}
}
impl Actor for AppState {
type Context = Context<Self>;
}
impl Handler<Reload> for AppState {
type Result = Result<(), EmgauwaError>;
fn handle(&mut self, _msg: Reload, _ctx: &mut Self::Context) -> Self::Result {
log::debug!("Reloading controller");
let mut pool_conn = block_on(self.pool.acquire())?;
self.this.reload(&mut pool_conn)?;
self.notify_change();
Ok(())
}
}
impl Handler<GetThis> for AppState {
type Result = Controller;
fn handle(&mut self, _msg: GetThis, _ctx: &mut Self::Context) -> Self::Result {
self.this.clone()
}
}
impl Handler<GetNotifier> for AppState {
type Result = Arc<Notify>;
fn handle(&mut self, _msg: GetNotifier, _ctx: &mut Self::Context) -> Self::Result {
Arc::clone(&self.notifier)
}
}