Just pre implement the show notification function =|

src/notification.rs

@@ -0,0 +1,41 @@
+use crate::cmus::events::CmusEvent;
+use crate::settings::Settings;
+use crate::TrackCover;
+
+#[inline(always)]
+pub fn show_notification(events: Vec<CmusEvent>, settings: &Settings, previous_cover: &mut TrackCover) -> Result<(), notify_rust::error::Error> {
+    if events.is_empty() {
+        return Ok(()); // No events to process.
+    }
+
+    let mut notification = notify_rust::Notification::new();
+
+    for event in events {
+        match event {
+            CmusEvent::StatusChanged(status) => {
+                println!("{:?}", status);
+            }
+            CmusEvent::TrackChanged(track) => {
+                println!("track change {:?}", track);
+            }
+            CmusEvent::VolumeChanged { left, right } if settings.show_player_notifications => {
+                println!("left: {}, right: {}", left, right);
+            }
+            CmusEvent::PositionChanged(position) => {
+                println!("position: {}", position);
+            }
+            CmusEvent::ShuffleChanged(shuffle) if settings.show_player_notifications => {
+                println!("shuffle: {:?}", shuffle);
+            }
+            CmusEvent::RepeatChanged(repeat) if settings.show_player_notifications => {
+                println!("repeat: {}", repeat);
+            }
+            CmusEvent::AAAMode(aaa_mode) if settings.show_player_notifications => {
+                println!("aaa_mode: {:?}", aaa_mode);
+            }
+            _ => {}
+        }
+        notification.show()?;
+    }
+    Ok(())
+}