Add AppState to Controller and split up models

emgauwa-controller/Cargo.toml

@@ -7,6 +7,8 @@ authors = ["Tobias Reisinger <tobias@msrg.cc>"]
 [dependencies]
 emgauwa-lib = { path = "../emgauwa-lib" }
 
+actix = "0.13"
+
 tokio = { version = "1.34", features = ["io-std", "macros", "rt-multi-thread"] }
 tokio-tungstenite = "0.20"
 

emgauwa-controller/src/app_state.rs

@@ -0,0 +1,48 @@
+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};
+
+#[derive(Message)]
+#[rtype(result = "Result<(), EmgauwaError>")]
+pub struct Reload {}
+
+#[derive(Message)]
+#[rtype(result = "Controller")]
+pub struct GetThis {}
+
+pub struct AppState {
+	pub pool: Pool<Sqlite>,
+	pub this: Controller,
+}
+
+impl AppState {
+	pub fn new(pool: Pool<Sqlite>, this: Controller) -> AppState {
+		AppState { pool, this }
+	}
+}
+
+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 {
+		let mut pool_conn = block_on(self.pool.acquire())?;
+
+		self.this.reload(&mut pool_conn)?;
+
+		Ok(())
+	}
+}
+
+impl Handler<GetThis> for AppState {
+	type Result = Controller;
+
+	fn handle(&mut self, _msg: GetThis, _ctx: &mut Self::Context) -> Self::Result {
+		self.this.clone()
+	}
+}

emgauwa-controller/src/main.rs

@@ -1,21 +1,24 @@
+use actix::Actor;
 use emgauwa_lib::constants::WEBSOCKET_RETRY_TIMEOUT;
+use emgauwa_lib::db;
 use emgauwa_lib::db::{DbController, DbJunctionRelaySchedule, DbRelay, DbSchedule};
 use emgauwa_lib::errors::EmgauwaError;
 use emgauwa_lib::models::{Controller, FromDbModel};
 use emgauwa_lib::types::ControllerUid;
-use emgauwa_lib::{db, utils};
+use emgauwa_lib::utils::init_logging;
 use sqlx::pool::PoolConnection;
 use sqlx::Sqlite;
 use tokio::time;
-use utils::init_logging;
 
 use crate::relay_loop::run_relay_loop;
 use crate::settings::Settings;
 use crate::ws::run_websocket;
 
+mod app_state;
 mod driver;
 mod relay_loop;
 mod settings;
+mod utils;
 mod ws;
 
 async fn create_this_controller(
@@ -55,7 +58,7 @@ async fn create_this_relay(
 	Ok(relay)
 }
 
-#[tokio::main]
+#[actix::main]
 async fn main() -> Result<(), std::io::Error> {
 	let settings = settings::init()?;
 	init_logging(&settings.logging.level)?;
@@ -98,6 +101,10 @@ async fn main() -> Result<(), std::io::Error> {
 		.await
 		.map_err(EmgauwaError::from)?;
 
+	let this = Controller::from_db_model(&mut conn, db_controller).map_err(EmgauwaError::from)?;
+
+	let app_state = app_state::AppState::new(pool.clone(), this).start();
+
 	let url = format!(
 		"ws://{}:{}/api/v1/ws/controllers",
 		settings.core.host, settings.core.port
@@ -106,14 +113,7 @@ async fn main() -> Result<(), std::io::Error> {
 	tokio::spawn(run_relay_loop(settings));
 
 	loop {
-		let db_controller = db_controller
-			.reload(&mut conn)
-			.await
-			.map_err(EmgauwaError::from)?;
-		let this =
-			Controller::from_db_model(&mut conn, db_controller).map_err(EmgauwaError::from)?;
-
-		let run_result = run_websocket(pool.clone(), this.clone(), &url).await;
+		let run_result = run_websocket(pool.clone(), &app_state, &url).await;
 		if let Err(err) = run_result {
 			log::error!("Error running websocket: {}", err);
 		}

emgauwa-controller/src/utils.rs

@@ -0,0 +1,9 @@
+use actix::Addr;
+use emgauwa_lib::errors::EmgauwaError;
+use emgauwa_lib::models::Controller;
+
+use crate::app_state::{AppState, GetThis};
+
+pub async fn get_this(app_state: &Addr<AppState>) -> Result<Controller, EmgauwaError> {
+	app_state.send(GetThis {}).await.map_err(EmgauwaError::from)
+}

emgauwa-controller/src/ws/mod.rs

@@ -1,3 +1,4 @@
+use actix::Addr;
 use emgauwa_lib::db::DbController;
 use emgauwa_lib::errors::{DatabaseError, EmgauwaError};
 use emgauwa_lib::models::Controller;
@@ -8,9 +9,13 @@ use sqlx::{Pool, Sqlite};
 use tokio_tungstenite::tungstenite::Message;
 use tokio_tungstenite::{connect_async, tungstenite};
 
+use crate::app_state;
+use crate::app_state::AppState;
+use crate::utils::get_this;
+
 pub async fn run_websocket(
 	pool: Pool<Sqlite>,
-	this: Controller,
+	app_state: &Addr<AppState>,
 	url: &str,
 ) -> Result<(), EmgauwaError> {
 	match connect_async(url).await {
@@ -19,7 +24,7 @@ pub async fn run_websocket(
 
 			let (mut write, read) = ws_stream.split();
 
-			let ws_action = ControllerWsAction::Register(this.clone());
+			let ws_action = ControllerWsAction::Register(get_this(app_state).await?);
 
 			let ws_action_json = serde_json::to_string(&ws_action)?;
 			if let Err(err) = write.send(Message::text(ws_action_json)).await {
@@ -27,7 +32,7 @@ pub async fn run_websocket(
 				return Ok(());
 			}
 
-			let read_handler = read.for_each(|msg| handle_message(pool.clone(), this.clone(), msg));
+			let read_handler = read.for_each(|msg| handle_message(pool.clone(), app_state, msg));
 
 			read_handler.await;
 
@@ -42,7 +47,7 @@ pub async fn run_websocket(
 
 async fn handle_message(
 	pool: Pool<Sqlite>,
-	this: Controller,
+	app_state: &Addr<AppState>,
 	message_result: Result<Message, tungstenite::Error>,
 ) {
 	let msg = match message_result {
@@ -52,8 +57,8 @@ async fn handle_message(
 			return;
 		}
 	};
-	match msg {
-		Message::Text(text) => match serde_json::from_str(&text) {
+	if let Message::Text(text) = msg {
+		match serde_json::from_str(&text) {
 			Ok(action) => {
 				log::debug!("Received action: {:?}", action);
 				let mut pool_conn = match pool.acquire().await {
@@ -63,7 +68,7 @@ async fn handle_message(
 						return;
 					}
 				};
-				let action_res = handle_action(&mut pool_conn, this, action).await;
+				let action_res = handle_action(&mut pool_conn, app_state, action).await;
 				if let Err(e) = action_res {
 					log::error!("Error handling action: {:?}", e);
 				}
@@ -71,19 +76,18 @@ async fn handle_message(
 			Err(e) => {
 				log::error!("Error deserializing action: {:?}", e);
 			}
-		},
-		_ => (),
+		}
 	}
 }
 
 pub async fn handle_action(
 	conn: &mut PoolConnection<Sqlite>,
-	this: Controller,
+	app_state: &Addr<AppState>,
 	action: ControllerWsAction,
 ) -> Result<(), EmgauwaError> {
 	match action {
 		ControllerWsAction::Controller(controller) => {
-			handle_controller(conn, this, controller).await
+			handle_controller(conn, app_state, controller).await
 		}
 		_ => Ok(()),
 	}
@@ -91,9 +95,10 @@ pub async fn handle_action(
 
 pub async fn handle_controller(
 	conn: &mut PoolConnection<Sqlite>,
-	this: Controller,
+	app_state: &Addr<AppState>,
 	controller: Controller,
 ) -> Result<(), EmgauwaError> {
+	let this = get_this(app_state).await?;
 	if controller.c.uid != this.c.uid {
 		return Err(EmgauwaError::Other(String::from(
 			"Controller UID mismatch during update",
@@ -105,5 +110,7 @@ pub async fn handle_controller(
 		.update(conn, controller.c.name.as_str(), this.c.relay_count)
 		.await?;
 
+	app_state.send(app_state::Reload {}).await??;
+
 	Ok(())
 }