Handle local tracks in playlist

- Show error on deletion, as we currently do not have a Uri we can pass to the
  Spotify API to delete local files in playlists
- Mark local files in `ListView`

fixes #1213

src/model/playlist.rs

@@ -4,7 +4,7 @@ use std::{cmp::Ordering, iter::Iterator};
 
 use rand::{seq::IteratorRandom, thread_rng};
 
-use log::debug;
+use log::{debug, warn};
 use rspotify::model::playlist::{FullPlaylist, SimplifiedPlaylist};
 use rspotify::model::Id;
 
@@ -56,11 +56,17 @@ impl Playlist {
     }
 
     pub fn delete_track(&mut self, index: usize, spotify: Spotify, library: &Library) -> bool {
-        let track = self.tracks.as_ref().unwrap()[index].clone();
-        debug!("deleting track: {} {:?}", index, track);
+        let playable = self.tracks.as_ref().unwrap()[index].clone();
+        debug!("deleting track: {} {:?}", index, playable);
+
+        if playable.track().map(|t| t.is_local) == Some(true) {
+            warn!("track is a local file, can't delete");
+            return false;
+        }
+
         match spotify
             .api
-            .delete_tracks(&self.id, &self.snapshot_id, &[track])
+            .delete_tracks(&self.id, &self.snapshot_id, &[playable])
         {
             false => false,
             true => {

src/model/track.rs

@@ -16,7 +16,7 @@ use crate::queue::Queue;
 use crate::traits::{IntoBoxedViewExt, ListItem, ViewExt};
 use crate::ui::listview::ListView;
 
-#[derive(Clone, Deserialize, Serialize)]
+#[derive(Clone, Debug, Deserialize, Serialize)]
 pub struct Track {
     pub id: Option<String>,
     pub uri: String,
@@ -33,6 +33,7 @@ pub struct Track {
     pub url: String,
     pub added_at: Option<DateTime<Utc>>,
     pub list_index: usize,
+    pub is_local: bool,
 }
 
 impl Track {
@@ -69,6 +70,7 @@ impl Track {
             url: track.id.as_ref().map(|id| id.url()).unwrap_or_default(),
             added_at: None,
             list_index: 0,
+            is_local: track.is_local,
         }
     }
 
@@ -106,6 +108,7 @@ impl From<&SimplifiedTrack> for Track {
             url: track.id.as_ref().map(|id| id.url()).unwrap_or_default(),
             added_at: None,
             list_index: 0,
+            is_local: track.is_local,
         }
     }
 }
@@ -145,6 +148,7 @@ impl From<&FullTrack> for Track {
             url: track.id.as_ref().map(|id| id.url()).unwrap_or_default(),
             added_at: None,
             list_index: 0,
+            is_local: track.is_local,
         }
     }
 }
@@ -163,18 +167,6 @@ impl fmt::Display for Track {
     }
 }
 
-impl fmt::Debug for Track {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        write!(
-            f,
-            "({} - {} ({:?}))",
-            self.artists.join(", "),
-            self.title,
-            self.id
-        )
-    }
-}
-
 impl ListItem for Track {
     fn is_playing(&self, queue: &Queue) -> bool {
         let current = queue.get_current();

src/ui/listview.rs

@@ -220,6 +220,7 @@ impl<I: ListItem + Clone> View for ListView<I> {
                 let item = &content[i];
                 let currently_playing =
                     item.is_playing(&self.queue) && self.queue.get_current_index() == Some(i);
+                let is_local = item.track().map(|t| t.is_local).unwrap_or_default();
 
                 let style = if self.selected == i {
                     if currently_playing {
@@ -227,6 +228,11 @@ impl<I: ListItem + Clone> View for ListView<I> {
                             *printer.theme.palette.custom("playing_selected").unwrap(),
                             ColorType::Palette(PaletteColor::Highlight),
                         )
+                    } else if is_local {
+                        ColorStyle::new(
+                            ColorType::Palette(PaletteColor::Secondary),
+                            ColorType::Palette(PaletteColor::Highlight),
+                        )
                     } else {
                         ColorStyle::highlight()
                     }
@@ -235,6 +241,8 @@ impl<I: ListItem + Clone> View for ListView<I> {
                         ColorType::Color(*printer.theme.palette.custom("playing").unwrap()),
                         ColorType::Color(*printer.theme.palette.custom("playing_bg").unwrap()),
                     )
+                } else if is_local {
+                    ColorStyle::secondary()
                 } else {
                     ColorStyle::primary()
                 };

src/ui/playlist.rs

@@ -80,13 +80,16 @@ impl ViewExt for PlaylistView {
     fn on_command(&mut self, s: &mut Cursive, cmd: &Command) -> Result<CommandResult, String> {
         if let Command::Delete = cmd {
             let pos = self.list.get_selected_index();
-            if self
+
+            return if self
                 .playlist
                 .delete_track(pos, self.spotify.clone(), &self.library)
             {
                 self.list.remove(pos);
-            }
-            return Ok(CommandResult::Consumed(None));
+                Ok(CommandResult::Consumed(None))
+            } else {
+                Err("Could not delete track.".to_string())
+            };
         }
 
         if let Command::Sort(key, direction) = cmd {