reduce vu update frequency, report more sql errors, fix bug with startup show time

src/artifacts.rs

@@ -144,6 +144,7 @@ pub struct BandcampQueryArgs {
 }
 
 #[derive(Debug)]
+#[allow(unused)]
 pub enum MixxxError {
     Sql(sqlite::Error)
 }
@@ -166,10 +167,11 @@ impl MixxxDB {
         let mut statement = connection.prepare(query)?;
         statement.bind((1, playlist_name.as_str()))?;
         statement.next()?;
-        let latest_id = statement.read::<i64, _>("id").unwrap();
+        let latest_id = statement.read::<i64, _>("id")?;
 
         let query = "SELECT title, artist, album, comment, url, bpm FROM library LEFT JOIN PlaylistTracks ON PlaylistTracks.track_id = library.id WHERE PlaylistTracks.playlist_id = ? ORDER BY position";
-        for track in connection.prepare(query).unwrap().into_iter().bind((1, latest_id)).unwrap().map(|row| row.unwrap()) {
+        for track in connection.prepare(query)?.into_iter().bind((1, latest_id))? {
+            let track = track?;
             let title = track.try_read::<&str, _>("title").unwrap_or("Untitled Track");
             let artist = track.try_read::<&str, _>("artist").unwrap_or("Unknown Artist");
             let album = track.try_read::<&str, _>("album").unwrap_or("Unknown Album");

src/audio.rs

@@ -148,6 +148,7 @@ pub async fn start_audio_input() -> (AudioInputControl, MicStream, TtsOutStream)
 
             volume_sink.send_if_modified(|v| {
                 let next_vu = meter.channel_vu(0).unwrap();
+                let next_vu = (next_vu * 100.0).round() / 100.0;
                 if *v != next_vu {
                     *v = next_vu;
                     true

src/scene/mod.rs

@@ -9,6 +9,7 @@ pub mod conversation;
 pub struct StageDirection {
     pub episode_number: u32,
     #[serde(skip)]
+    #[serde(default="StageDirection::default_end_time")]
     pub end_time: DateTime<Utc>,
     pub narrative: String,
 }
@@ -17,13 +18,17 @@ impl StageDirection {
     pub fn time_remaining(&self) -> Duration {
         self.end_time.signed_duration_since(Utc::now())
     }
+
+    fn default_end_time() -> DateTime<Utc> {
+        Utc::now() + Duration::hours(2)
+    }
 }
 
 impl Default for StageDirection {
     fn default() -> Self {
         Self {
             episode_number: 0,
-            end_time: Utc::now() + Duration::hours(2),
+            end_time: Self::default_end_time(),
             narrative: Default::default(),
         }
     }