132 lines
3.5 KiB
Rust
132 lines
3.5 KiB
Rust
use std::str;
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use crate::relay_loop::run_relay_loop;
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use crate::settings::Settings;
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use emgauwa_lib::db;
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use emgauwa_lib::db::{DbController, DbRelay};
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use emgauwa_lib::handlers::v1::ws::controllers::ControllerWsAction;
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use emgauwa_lib::models::{Controller, FromDbModel};
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use emgauwa_lib::types::ControllerUid;
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use futures::channel::mpsc;
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use futures::{future, pin_mut, SinkExt, StreamExt};
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use sqlx::pool::PoolConnection;
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use sqlx::Sqlite;
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use tokio::io::AsyncReadExt;
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use tokio_tungstenite::tungstenite::Error;
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use tokio_tungstenite::{connect_async, tungstenite::protocol::Message};
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mod driver;
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mod relay_loop;
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mod settings;
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async fn create_this_controller(
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conn: &mut PoolConnection<Sqlite>,
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settings: &Settings,
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) -> DbController {
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DbController::create(
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conn,
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&ControllerUid::default(),
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&settings.name,
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i64::try_from(settings.relays.len()).expect("Too many relays"),
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)
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.await
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.expect("Failed to create controller")
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}
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async fn create_this_relay(
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conn: &mut PoolConnection<Sqlite>,
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this_controller: &DbController,
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settings_relay: &settings::Relay,
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) -> DbRelay {
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DbRelay::create(
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conn,
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&settings_relay.name,
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settings_relay.number.unwrap(),
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this_controller,
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)
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.await
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.expect("Failed to create relay")
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}
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#[tokio::main]
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async fn main() {
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let settings = settings::init();
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let pool = db::init(&settings.database).await;
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let mut conn = pool.acquire().await.unwrap();
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let db_controller = DbController::get_all(&mut conn)
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.await
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.expect("Failed to get controller from database")
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.pop()
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.unwrap_or_else(|| {
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futures::executor::block_on(create_this_controller(&mut conn, &settings))
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});
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for relay in &settings.relays {
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if DbRelay::get_by_controller_and_num(&mut conn, &db_controller, relay.number.unwrap())
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.await
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.expect("Failed to get relay from database")
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.is_none()
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{
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create_this_relay(&mut conn, &db_controller, relay).await;
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}
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}
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let db_controller = db_controller
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.update(&mut conn, &db_controller.name, settings.relays.len() as i64)
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.await
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.unwrap();
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let this = Controller::from_db_model(&mut conn, db_controller)
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.expect("Failed to convert database models");
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let url = format!(
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"ws://{}:{}/api/v1/ws/controllers",
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settings.core.host, settings.core.port
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);
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let (stdin_tx, stdin_rx) = mpsc::unbounded();
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tokio::spawn(read_stdin(stdin_tx));
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let (ws_stream, _) = connect_async(url).await.expect("Failed to connect");
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let (mut write, read) = ws_stream.split();
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let ws_action = ControllerWsAction::Register(this);
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println!("Sending action: {:?}", ws_action);
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let ws_action_json = serde_json::to_string(&ws_action).unwrap();
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println!("Sending json: {}", ws_action_json);
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write.send(Message::text(ws_action_json)).await.unwrap();
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let ws_to_stdout = read.for_each(handle_message);
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let stdin_to_ws = stdin_rx.map(Ok).forward(write);
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tokio::spawn(run_relay_loop(settings));
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pin_mut!(stdin_to_ws, ws_to_stdout);
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future::select(stdin_to_ws, ws_to_stdout).await;
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}
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// Our helper method which will read data from stdin and send it along the
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// sender provided.
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async fn read_stdin(tx: mpsc::UnboundedSender<Message>) {
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let mut stdin = tokio::io::stdin();
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loop {
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let mut buf = vec![0; 1024];
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let n = match stdin.read(&mut buf).await {
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Err(_) | Ok(0) => break,
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Ok(n) => n,
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};
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buf.truncate(n);
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tx.unbounded_send(Message::text(str::from_utf8(&buf).unwrap()))
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.unwrap();
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}
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}
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pub async fn handle_message(message_result: Result<Message, Error>) {
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match message_result {
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Ok(message) => println!("{}", message.into_text().unwrap()),
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Err(err) => println!("Error: {}", err),
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}
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}
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