added inital server communcation task

WatcherAgent/src/main.rs

@@ -13,6 +13,9 @@ use std::marker::Send;
 use std::marker::Sync;
 use std::result::Result;
 use tokio::task::JoinHandle;
+use bollard::Docker;
+
+use crate::serverclientcomm::{get_current_image};
 
 async fn flatten<T>(
     handle: JoinHandle<Result<T, Box<dyn Error + Send + Sync>>>,
@@ -26,14 +29,26 @@ async fn flatten<T>(
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
-    let args: Vec<String> = env::args().collect();
+    // Initialize Docker client
+    let docker = Docker::connect_with_local_defaults()
+        .map_err(|e| format!("Failed to connect to Docker: {}", e))?;
 
+    // Get current image version
+    let client_version = match get_current_image(&docker).await {
+        Ok(version) => version.unwrap(),
+        Err(e) => {
+            eprintln!("Warning: Could not get current image version: {}", e);
+            "unknown".to_string()
+        }
+    };
+    println!("Client Version: {}", client_version);
+
+    let args: Vec<String> = env::args().collect();
     // args[0] is the binary name, args[1] is the first actual argument
     if args.len() < 2 {
         eprintln!("Usage: {} <server-url>", args[0]);
         return Err("Missing server URL argument".into());
     }
-
     let server_url = &args[1];
     println!("Server URL: {:?}", server_url);
 
@@ -47,6 +62,13 @@ async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
     };
 
     // Start background tasks
+    // Start server listening for commands
+    let listening_handle = tokio::spawn({
+        let docker = docker.clone();
+        let server_url = server_url.to_string();
+        async move { api::listening_to_server(&docker, &server_url).await }
+    });
+
     // Start heartbeat in background
     let heartbeat_handle = tokio::spawn({
         let ip = ip.clone();
@@ -65,14 +87,16 @@ async fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
         }
     });
 
-    // Warte auf beide Tasks und prüfe explizit auf Fehler
-    let (heartbeat_handle, metrics_handle) =
-        tokio::try_join!(flatten(heartbeat_handle), flatten(metrics_handle))?;
+    // Wait for all tasks and check for errors
+    let (listening_result, heartbeat_result, metrics_result) = tokio::try_join!(
+        flatten(listening_handle),
+        flatten(heartbeat_handle),
+        flatten(metrics_handle)
+    )?;
 
-    let (heartbeat, metrics) = (heartbeat_handle, metrics_handle);
     println!(
-        "All tasks completed successfully: {:?}, {:?}.",
-        heartbeat, metrics
+        "All tasks completed: listening={:?}, heartbeat={:?}, metrics={:?}",
+        listening_result, heartbeat_result, metrics_result
     );
 
     println!("All tasks completed successfully.");