From 06693b731e2fecefdee8db554ac1c6d113b9a819 Mon Sep 17 00:00:00 2001
From: Serguey Parkhomovsky <xindigo@gmail.com>
Date: Tue, 17 Mar 2026 20:47:58 -0700
Subject: Add tracing macros

---
 Cargo.lock  | 13 +++++++++++++
 Cargo.toml  |  1 +
 src/main.rs | 14 +++++++-------
 3 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index de9ee5e..6760298 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -851,6 +851,7 @@ dependencies = [
  "serde_json",
  "tokio",
  "toml",
+ "tracing",
  "tracing-subscriber",
 ]
 
@@ -1478,9 +1479,21 @@ checksum = "63e71662fa4b2a2c3a26f570f037eb95bb1f85397f3cd8076caed2f026a6d100"
 dependencies = [
  "log",
  "pin-project-lite",
+ "tracing-attributes",
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-attributes"
+version = "0.1.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tracing-core"
 version = "0.1.36"
diff --git a/Cargo.toml b/Cargo.toml
index a1e51ce..3e378d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,4 +12,5 @@ tokio = { version = "1.49.0", features = ["full"] }
 toml = "0.8"
 serde_json = "1.0.149"
 axum = "0.8.8"
+tracing = "0.1"
 tracing-subscriber = "0.3.23"
diff --git a/src/main.rs b/src/main.rs
index d1e7a03..3c2c772 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -22,12 +22,12 @@ async fn main() {
     for printer in config.printers {
         match printer {
             Printer::Prusa { name, host, api_key } => {
-                println!("Found Prusa: {} at {}", name, host);
+                tracing::info!(name, host, "Found Prusa");
                 let state_clone = state.clone();
                 tokio::spawn(poll_prusa(name, host, api_key, state_clone));
             }
             Printer::Bambu { name, host, serial_number, access_code } => {
-                println!("Found Bambu: {} at {}", name, host);
+                tracing::info!(name, host, "Found Bambu");
                 let state_clone = state.clone();
                 tokio::spawn(poll_bambu(name, host, serial_number, access_code, state_clone));
             }
@@ -65,7 +65,7 @@ async fn poll_prusa(
         }
         .await;
         if let Err(e) = result {
-            eprintln!("Error polling Prusa printer {}: {}", name, e);
+            tracing::error!(name, error = %e, "Error polling Prusa printer");
         }
         tokio::time::sleep(Duration::from_secs(5)).await;
     }
@@ -99,20 +99,20 @@ async fn poll_bambu(
         // eventloop.poll() yields back to Tokio when there's no data
         match eventloop.poll().await {
             Ok(Event::Incoming(Packet::Publish(p))) => {
-                println!("{:?}", &p.payload);
+                tracing::debug!(payload = ?p.payload, "Received Bambu payload");
                 match serde_json::from_slice::<BambuStatus>(&p.payload) {
                     Ok(msg) => {
                         let mut lock = state.lock().await;
                         let entry = lock.entry(name.clone()).or_default();
                         extract_status_from_bambu(&msg, entry);
-                        println!("Updated state for {}: {:?}", &name, p.payload);
+                        tracing::debug!(name, payload = ?p.payload, "Updated state");
                     }
-                    Err(e) => eprintln!("Failed to deserialize BambuStatus: {}", e),
+                    Err(e) => tracing::error!(error = %e, "Failed to deserialize BambuStatus"),
                 }
             }
             Ok(_) => {}
             Err(e) => {
-                eprintln!("MQTT error: {:?}", e);
+                tracing::error!(error = ?e, "MQTT error");
                 tokio::time::sleep(Duration::from_secs(5)).await; // Simple retry
             }
         }
-- 
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