Clippy fixes

src/lastfm.rs

@@ -16,15 +16,14 @@ pub struct TopTrack {
     pub name: String,
     pub mbid: Option<String>,
     pub playcount: u64,
-    pub listeners: u64,
 }
 
-// Last.fm returns {"error": N, "message": "..."} on failure
+// Last.fm returns {"error": N, "message": "..."} on failure.
+// Only used to detect error responses via serde — fields aren't read directly.
 #[derive(Deserialize)]
 struct ApiError {
     #[allow(dead_code)]
     error: u32,
-    message: String,
 }
 
 // Deserialization structs for the Last.fm API responses
@@ -62,7 +61,6 @@ struct TrackEntry {
     name: String,
     mbid: Option<String>,
     playcount: String,
-    listeners: String,
 }
 
 impl LastfmClient {
@@ -87,14 +85,9 @@ impl LastfmClient {
         extra_params: &str,
     ) -> Result<Option<String>, Box<dyn std::error::Error>> {
         if let Some(name) = artist_name {
-            let name = name.replace('\u{2010}', "-")
-                .replace('\u{2011}', "-")
-                .replace('\u{2012}', "-")
-                .replace('\u{2013}', "-")
-                .replace('\u{2014}', "-")
-                .replace('\u{2015}', "-")
-                .replace('\u{2018}', "'")
-                .replace('\u{2019}', "'");
+            let name = name
+                .replace(['\u{2010}', '\u{2011}', '\u{2012}', '\u{2013}', '\u{2014}', '\u{2015}'], "-")
+                .replace(['\u{2018}', '\u{2019}'], "'");
             let encoded = urlencoding::encode(&name);
             let url = format!(
                 "{}?method={}&artist={}&api_key={}{}&format=json",
@@ -163,7 +156,6 @@ impl LastfmClient {
                 name: t.name,
                 mbid: t.mbid.filter(|s| !s.is_empty()),
                 playcount: t.playcount.parse().unwrap_or(0),
-                listeners: t.listeners.parse().unwrap_or(0),
             })
             .collect())
     }