Add tokio watch channel to update mpris player state

src/main.rs

@@ -3,15 +3,12 @@ mod http_server;
 mod player;
 mod userinterface;
 
-use std::{env::args, sync::Arc};
+use std::{env::args, sync::Arc, thread::sleep, time::Duration};
 
-use tokio::sync::broadcast;
+use tokio::sync::watch;
 
 #[tokio::main]
 async fn main() {
-    // Initialize the mpris player
-    let player = player::MprisPlayer::new().expect("Could not create player");
-
     // Initialize the database
     let db = Arc::new(
         database::Database::new()
@@ -62,7 +59,8 @@ async fn main() {
     }
 
     // Instantiate the mpris channel
-    let (mpris_tx, _) = broadcast::channel(32);
+    // Channel size 1 makes sure we always have the correct song in the queue
+    let (mpris_tx, mut mpris_rx) = watch::channel((String::new(), String::new()));
 
     let mpris_tx_http = mpris_tx.clone();
     tokio::spawn(async move {
@@ -73,6 +71,8 @@ async fn main() {
                     println!("Error sending interpret and track: {e}");
                 }
             }
+            // Use the std sleep here to avoid an await which will requires player to be Send.
+            sleep(Duration::from_millis(10));
         }
     });
 
@@ -86,24 +86,13 @@ async fn main() {
         let (usernumber, userrating) = userinterface::get_user_rating(&db)
             .await
             .expect("Can not get user input");
+        let (interpret, track) = (*mpris_rx.borrow_and_update()).clone();
 
-        match player.get_interpret_and_track() {
-            Ok((interpret, song)) => {
-                if let Err(e) = db
-                    .user_add_rating(usernumber, &interpret, &song, userrating)
-                    .await
-                {
-                    eprintln!("{e}");
-                }
-            }
-            Err(e) => {
-                eprintln!("{e}");
-                continue;
-            }
+        if let Err(e) = db
+            .user_add_rating(usernumber, &interpret, &track, userrating)
+            .await
+        {
+            eprintln!("{e}");
         }
     }
 }
-
-fn mpris_player_producer() {
-    //
-}