pool: add SyncProgress::percentage

Signed-off-by: Yuki Kishimoto <[email protected]>

crates/nostr-relay-pool/src/relay/options.rs

@@ -326,6 +326,16 @@ impl SyncProgress {
     pub fn channel() -> (Sender<Self>, Receiver<Self>) {
         watch::channel(SyncProgress::default())
     }
+
+    /// Calculate progress %
+    #[inline]
+    pub fn percentage(&self) -> f64 {
+        if self.total > 0 {
+            self.current as f64 / self.total as f64
+        } else {
+            0.0
+        }
+    }
 }
 
 /// Sync (negentropy reconciliation) options

crates/nostr-sdk/examples/negentropy.rs

@@ -24,9 +24,9 @@ async fn main() -> Result<()> {
 
     tokio::spawn(async move {
         while rx.changed().await.is_ok() {
-            let SyncProgress { total, current } = *rx.borrow_and_update();
-            if total > 0 {
-                println!("{:.2}%", (current as f64 / total as f64) * 100.0);
+            let progress = *rx.borrow_and_update();
+            if progress.total > 0 {
+                println!("{:.2}%", progress.percentage() * 100.0);
             }
         }
     });