backend redesign

relay/src/main.rs

@@ -0,0 +1,47 @@
+mod config;
+mod relay;
+mod proto;
+
+use anyhow::Result;
+use config::Config;
+use relay::Relay;
+use tracing::{info, error};
+use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    // Initialize tracing
+    tracing_subscriber::registry()
+        .with(
+            tracing_subscriber::EnvFilter::try_from_default_env()
+                .unwrap_or_else(|_| "relay=info".into()),
+        )
+        .with(tracing_subscriber::fmt::layer())
+        .init();
+
+    info!("Starting Stateless ZMQ Relay Gateway");
+    info!("Architecture: Async event-driven with pub/sub notifications");
+
+    // Load configuration
+    let config = Config::from_env()?;
+    info!("Configuration loaded: {:?}", config);
+
+    // Create and run stateless relay
+    let relay = Relay::new(config)?;
+
+    // Handle shutdown signals
+    tokio::select! {
+        result = relay.run() => {
+            match result {
+                Ok(_) => info!("Relay stopped gracefully"),
+                Err(e) => error!("Relay error: {}", e),
+            }
+        }
+        _ = tokio::signal::ctrl_c() => {
+            info!("Received shutdown signal");
+        }
+    }
+
+    info!("ZMQ Relay Gateway stopped");
+    Ok(())
+}