Using config in engine

src/engine/config.rs

@@ -16,12 +16,12 @@ pub fn pulse_config_directory() -> tokio::io::Result<PathBuf> {
 
 #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
 pub struct WatchList {
-    symbols: Vec<String>,
+    pub symbols: Vec<String>,
 }
 
 #[derive(Debug, Default, serde::Serialize, serde::Deserialize)]
 pub struct Config {
-    watchlist: WatchList,
+    pub watchlist: WatchList,
 }
 
 impl Config {

src/engine/engine.rs

@@ -1,18 +1,20 @@
 use std::sync::Arc;
 
-use crate::terminal::TerminalServer;
+use tokio::sync::Mutex;
 
-const WATCH_LIST_SYMBOLS: &[&str] = &["BTC", "ETH", "SOL", "XRP"];
+use crate::{config::Config, terminal::TerminalServer};
 
 pub struct Engine {
     pub terminal_server: Arc<TerminalServer>,
+    pub config: Arc<Mutex<Config>>,
 }
 
 impl Engine {
-    pub fn new() -> Self {
-        Self {
+    pub async fn new() -> tokio::io::Result<Self> {
+        Ok(Self {
             terminal_server: TerminalServer::new(),
-        }
+            config: Arc::new(Mutex::new(Config::new().await?)),
+        })
     }
 
     pub fn spawn_terminal_server(&self) {
@@ -26,8 +28,9 @@ impl Engine {
         });
     }
 
-    pub fn spawn_broadcaster(&mut self) {
+    pub fn spawn_broadcaster(&self) {
         let terminal_server = self.terminal_server.clone();
+        let config = self.config.clone();
 
         tokio::spawn(async move {
             let mut refresh = tokio::time::interval(tokio::time::Duration::from_secs(5));
@@ -35,7 +38,9 @@ impl Engine {
             loop {
                 refresh.tick().await;
 
-                match crate::fetch::fetch_watch_list(WATCH_LIST_SYMBOLS).await {
+                let watch_list = &config.lock().await.watchlist.symbols;
+
+                match crate::fetch::fetch_watch_list(watch_list).await {
                     Ok(watch_list) => {
                         if let Err(error) = terminal_server
                             .broadcast(
@@ -54,7 +59,7 @@ impl Engine {
         });
     }
 
-    pub async fn run_engine(&mut self) -> tokio::io::Result<()> {
+    pub async fn run_engine(&self) -> tokio::io::Result<()> {
         loop {
             tokio::time::sleep(tokio::time::Duration::from_millis(5000)).await;
         }

src/engine/fetch.rs

@@ -12,7 +12,7 @@ fn number(value: &Value, field: &str) -> Result<f64, String> {
         .map_err(|error| format!("could not parse asset context field {field} ({raw}): {error}"))
 }
 
-pub async fn fetch_watch_list(symbols: &[&str]) -> Result<Vec<WatchListItem>, String> {
+pub async fn fetch_watch_list(symbols: &[String]) -> Result<Vec<WatchListItem>, String> {
     let response = hypersdk::hypercore::mainnet()
         .meta_and_asset_ctxs(None)
         .await
@@ -73,7 +73,7 @@ pub async fn fetch_watch_list(symbols: &[&str]) -> Result<Vec<WatchListItem>, St
         .iter()
         .map(|symbol| {
             by_symbol
-                .remove(*symbol)
+                .remove(symbol.as_str())
                 .ok_or_else(|| format!("{symbol} is not in the Hyperliquid perpetual universe"))
         })
         .collect()

src/engine/main.rs

@@ -5,7 +5,7 @@ pub mod terminal;
 
 #[tokio::main]
 async fn main() -> tokio::io::Result<()> {
-    let mut engine = engine::Engine::new();
+    let engine = engine::Engine::new().await?;
 
     engine.spawn_terminal_server();