feat: log emitted logging events with tracing

Cargo.toml

@@ -108,6 +108,7 @@ tokio-tar = { version = "0.3" } # TODO: integrate tokio into async-tar
 tokio-util = { workspace = true }
 tokio = { workspace = true, features = ["fs", "rt-multi-thread", "macros"] }
 toml = "0.8"
+tracing = "0.1.41"
 url = "2"
 uuid = { version = "1", features = ["serde", "v4"] }
 webpki-roots = "0.26.8"

src/accounts.rs

@@ -53,6 +53,14 @@ impl Accounts {
         Accounts::open(dir, writable).await
     }
 
+    /// Get the ID used to log events.
+    ///
+    /// Account manager logs events with ID 0
+    /// which is not used by any accounts.
+    fn get_id(&self) -> u32 {
+        0
+    }
+
     /// Creates a new default structure.
     async fn create(dir: &Path) -> Result<()> {
         fs::create_dir_all(dir)

src/log.rs

@@ -14,6 +14,7 @@ macro_rules! info {
                            file = file!(),
                            line = line!(),
                            msg = &formatted);
+        ::tracing::event!(::tracing::Level::INFO, account_id = $ctx.get_id(), "{}", &formatted);
         $ctx.emit_event($crate::EventType::Info(full));
     }};
 }
@@ -33,6 +34,7 @@ mod warn_macro_mod {
                                file = file!(),
                                line = line!(),
                                msg = &formatted);
+            ::tracing::event!(::tracing::Level::WARN, account_id = $ctx.get_id(), "{}", &formatted);
             $ctx.emit_event($crate::EventType::Warning(full));
         }};
     }
@@ -48,6 +50,7 @@ macro_rules! error {
     };
     ($ctx:expr, $msg:expr, $($args:expr),* $(,)?) => {{
         let formatted = format!($msg, $($args),*);
+        ::tracing::event!(::tracing::Level::ERROR, account_id = $ctx.get_id(), "{}", &formatted);
         $ctx.set_last_error(&formatted);
         $ctx.emit_event($crate::EventType::Error(formatted));
     }};
@@ -103,6 +106,12 @@ impl<T, E: std::fmt::Display> LogExt<T, E> for Result<T, E> {
             );
             // We can't use the warn!() macro here as the file!() and line!() macros
             // don't work with #[track_caller]
+            tracing::event!(
+                ::tracing::Level::WARN,
+                account_id = context.get_id(),
+                "{}",
+                &full
+            );
             context.emit_event(crate::EventType::Warning(full));
         };
         self