introduce track data class

src/track.rs

@@ -0,0 +1,54 @@
+use std::fmt;
+
+use librespot::core::spotify_id::SpotifyId;
+use rspotify::spotify::model::track::FullTrack;
+
+#[derive(Clone)]
+pub struct Track {
+    pub id: SpotifyId,
+    pub duration: u32,
+    pub artists: String,
+    pub title: String,
+}
+
+impl Track {
+    pub fn new(track: &FullTrack) -> Track {
+        let artists_joined = track
+            .artists
+            .iter()
+            .map(|ref artist| artist.name.clone())
+            .collect::<Vec<String>>()
+            .join(", ");
+
+        Track {
+            id: SpotifyId::from_base62(&track.id).expect("could not load track"),
+            duration: track.duration_ms / 1000,
+            artists: artists_joined,
+            title: track.name.clone(),
+        }
+    }
+
+    pub fn duration_str(&self) -> String {
+        let minutes = self.duration / 60;
+        let seconds = self.duration % 60;
+        format!("{:02}:{:02}", minutes, seconds)
+    }
+}
+
+impl fmt::Display for Track {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{} - {}", self.artists, self.title)
+    }
+}
+
+impl fmt::Debug for Track {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(
+            f,
+            "({} - {} ({})",
+            self.artists,
+            self.title,
+            self.id.to_base62()
+        )
+    }
+}