refactor(image-to-string): use asset placeholders instead of dicebear URIs

lib/components/Album/AlbumCard.dart

@@ -21,7 +21,10 @@ class AlbumCard extends HookConsumerWidget {
     final int marginH =
         useBreakpointValue(sm: 10, md: 15, lg: 20, xl: 20, xxl: 20);
     return PlaybuttonCard(
-      imageUrl: TypeConversionUtils.image_X_UrlString(album.images),
+      imageUrl: TypeConversionUtils.image_X_UrlString(
+        album.images,
+        placeholder: ImagePlaceholder.collection,
+      ),
       margin: EdgeInsets.symmetric(horizontal: marginH.toDouble()),
       isPlaying: isPlaylistPlaying && playback.isPlaying,
       isLoading: playback.status == PlaybackStatus.loading &&

lib/components/Album/AlbumView.dart

@@ -27,7 +27,10 @@ class AlbumView extends HookConsumerWidget {
           tracks: tracks,
           id: album.id!,
           name: album.name!,
-          thumbnail: TypeConversionUtils.image_X_UrlString(album.images),
+          thumbnail: TypeConversionUtils.image_X_UrlString(
+            album.images,
+            placeholder: ImagePlaceholder.collection,
+          ),
         ),
         tracks.indexWhere((s) => s.id == currentTrack?.id),
       );
@@ -50,7 +53,10 @@ class AlbumView extends HookConsumerWidget {
         ref.watch(albumIsSavedForCurrentUserQuery(album.id!));
 
     final albumArt = useMemoized(
-        () => TypeConversionUtils.image_X_UrlString(album.images),
+        () => TypeConversionUtils.image_X_UrlString(
+              album.images,
+              placeholder: ImagePlaceholder.albumArt,
+            ),
         [album.images]);
 
     final breakpoint = useBreakpoints();

lib/components/Artist/ArtistCard.dart

@@ -4,6 +4,8 @@ import 'package:go_router/go_router.dart';
 import 'package:spotify/spotify.dart';
 import 'package:spotube/components/Shared/HoverBuilder.dart';
 import 'package:spotube/components/Shared/SpotubeMarqueeText.dart';
+import 'package:spotube/components/Shared/UniversalImage.dart';
+import 'package:spotube/utils/type_conversion_utils.dart';
 
 class ArtistCard extends StatelessWidget {
   final Artist artist;
@@ -11,11 +13,11 @@ class ArtistCard extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final backgroundImage = CachedNetworkImageProvider((artist
+    final backgroundImage =
-                .images?.isNotEmpty ??
+        UniversalImage.imageProvider(TypeConversionUtils.image_X_UrlString(
-            false)
+      artist.images,
-        ? artist.images!.first.url!
+      placeholder: ImagePlaceholder.artist,
-        : "https://avatars.dicebear.com/api/open-peeps/${artist.id}.png?b=%231ed760&r=50&flip=1&translateX=3&translateY=-6");
+    ));
     return SizedBox(
       height: 240,
       width: 200,

lib/components/Artist/ArtistProfile.dart

@@ -1,4 +1,3 @@
-import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_hooks/flutter_hooks.dart';
@@ -10,6 +9,7 @@ import 'package:spotube/components/Artist/ArtistCard.dart';
 import 'package:spotube/components/LoaderShimmers/ShimmerArtistProfile.dart';
 import 'package:spotube/components/Shared/PageWindowTitleBar.dart';
 import 'package:spotube/components/Shared/TrackTile.dart';
+import 'package:spotube/components/Shared/UniversalImage.dart';
 import 'package:spotube/hooks/useBreakpointValue.dart';
 import 'package:spotube/hooks/useBreakpoints.dart';
 import 'package:spotube/models/CurrentPlaylist.dart';
@@ -78,8 +78,11 @@ class ArtistProfile extends HookConsumerWidget {
                       const SizedBox(width: 50),
                       CircleAvatar(
                         radius: avatarWidth,
-                        backgroundImage: CachedNetworkImageProvider(
+                        backgroundImage: UniversalImage.imageProvider(
-                          TypeConversionUtils.image_X_UrlString(data.images),
+                          TypeConversionUtils.image_X_UrlString(
+                            data.images,
+                            placeholder: ImagePlaceholder.artist,
+                          ),
                         ),
                       ),
                       Padding(
@@ -193,7 +196,9 @@ class ArtistProfile extends HookConsumerWidget {
                               id: data.id!,
                               name: "${data.name!} To Tracks",
                               thumbnail: TypeConversionUtils.image_X_UrlString(
-                                  data.images),
+                                data.images,
+                                placeholder: ImagePlaceholder.artist,
+                              ),
                             ),
                             tracks.indexWhere((s) => s.id == currentTrack?.id),
                           );
@@ -233,10 +238,10 @@ class ArtistProfile extends HookConsumerWidget {
                               "${track.value.duration?.inMinutes.remainder(60)}:${PrimitiveUtils.zeroPadNumStr(track.value.duration?.inSeconds.remainder(60) ?? 0)}";
                           String? thumbnailUrl =
                               TypeConversionUtils.image_X_UrlString(
-                                  track.value.album?.images,
+                            track.value.album?.images,
-                                  index:
+                            index: (track.value.album?.images?.length ?? 1) - 1,
-                                      (track.value.album?.images?.length ?? 1) -
+                            placeholder: ImagePlaceholder.albumArt,
-                                          1);
+                          );
                           return TrackTile(
                             playback,
                             duration: duration,

lib/components/Home/Sidebar.dart

@@ -5,6 +5,7 @@ import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:go_router/go_router.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:flutter/material.dart';
+import 'package:spotube/components/Shared/UniversalImage.dart';
 import 'package:spotube/hooks/useBreakpointValue.dart';
 import 'package:spotube/hooks/useBreakpoints.dart';
 import 'package:spotube/models/sideBarTiles.dart';
@@ -135,8 +136,10 @@ class Sidebar extends HookConsumerWidget {
                   final data = meSnapshot.asData?.value;
 
                   final avatarImg = TypeConversionUtils.image_X_UrlString(
-                      data?.images,
+                    data?.images,
-                      index: (data?.images?.length ?? 1) - 1);
+                    index: (data?.images?.length ?? 1) - 1,
+                    placeholder: ImagePlaceholder.artist,
+                  );
                   if (extended.value) {
                     return Padding(
                         padding: const EdgeInsets.all(16),
@@ -155,7 +158,8 @@ class Sidebar extends HookConsumerWidget {
                                   children: [
                                     CircleAvatar(
                                       backgroundImage:
-                                          CachedNetworkImageProvider(avatarImg),
+                                          UniversalImage.imageProvider(
+                                              avatarImg),
                                       onBackgroundImageError:
                                           (exception, stackTrace) =>
                                               Image.asset(
@@ -193,7 +197,7 @@ class Sidebar extends HookConsumerWidget {
                         onTap: () => goToSettings(context),
                         child: CircleAvatar(
                           backgroundImage:
-                              CachedNetworkImageProvider(avatarImg),
+                              UniversalImage.imageProvider(avatarImg),
                           onBackgroundImageError: (exception, stackTrace) =>
                               Image.asset(
                             "assets/user-placeholder.png",

lib/components/Library/UserDownloads.dart

@@ -3,6 +3,7 @@ import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:spotify/spotify.dart';
+import 'package:spotube/components/Shared/UniversalImage.dart';
 import 'package:spotube/provider/Downloader.dart';
 import 'package:spotube/utils/type_conversion_utils.dart';
 
@@ -53,11 +54,12 @@ class UserDownloads extends HookConsumerWidget {
                   padding: const EdgeInsets.symmetric(horizontal: 5),
                   child: ClipRRect(
                     borderRadius: BorderRadius.circular(10),
-                    child: CachedNetworkImage(
+                    child: UniversalImage(
                       height: 40,
                       width: 40,
-                      imageUrl: TypeConversionUtils.image_X_UrlString(
+                      path: TypeConversionUtils.image_X_UrlString(
                         track.album?.images,
+                        placeholder: ImagePlaceholder.albumArt,
                       ),
                     ),
                   ),

lib/components/Library/UserLocalTracks.dart

@@ -108,7 +108,10 @@ class UserLocalTracks extends HookConsumerWidget {
           tracks: tracks,
           id: "local",
           name: "Local Tracks",
-          thumbnail: TypeConversionUtils.image_X_UrlString(null),
+          thumbnail: TypeConversionUtils.image_X_UrlString(
+            null,
+            placeholder: ImagePlaceholder.collection,
+          ),
           isLocal: true,
         ),
         tracks.indexWhere((s) => s.id == currentTrack?.id),

lib/components/Lyrics/SyncedLyrics.dart

@@ -112,6 +112,7 @@ class SyncedLyrics extends HookConsumerWidget {
       () => TypeConversionUtils.image_X_UrlString(
         playback.track?.album?.images,
         index: (playback.track?.album?.images?.length ?? 1) - 1,
+        placeholder: ImagePlaceholder.albumArt,
       ),
       [playback.track?.album?.images],
     );

lib/components/Player/Player.dart

@@ -25,6 +25,7 @@ class Player extends HookConsumerWidget {
           ? TypeConversionUtils.image_X_UrlString(
               playback.track?.album?.images,
               index: (playback.track?.album?.images?.length ?? 1) - 1,
+              placeholder: ImagePlaceholder.albumArt,
             )
           : "assets/album-placeholder.png",
       [playback.track?.album?.images],

lib/components/Player/PlayerQueue.dart

@@ -113,6 +113,7 @@ class PlayerQueue extends HookConsumerWidget {
                           duration: duration,
                           thumbnailUrl: TypeConversionUtils.image_X_UrlString(
                             track.value.album?.images,
+                            placeholder: ImagePlaceholder.albumArt,
                           ),
                           isActive: playback.track?.id == track.value.id,
                           onTrackPlayButtonPressed: (currentTrack) async {

lib/components/Player/PlayerView.dart

@@ -42,6 +42,7 @@ class PlayerView extends HookConsumerWidget {
       () => TypeConversionUtils.image_X_UrlString(
         currentTrack?.album?.images,
         index: (currentTrack?.album?.images?.length ?? 1) - 1,
+        placeholder: ImagePlaceholder.albumArt,
       ),
       [currentTrack?.album?.images],
     );

lib/components/Playlist/PlaylistCard.dart

@@ -23,7 +23,10 @@ class PlaylistCard extends HookConsumerWidget {
     return PlaybuttonCard(
       margin: EdgeInsets.symmetric(horizontal: marginH.toDouble()),
       title: playlist.name!,
-      imageUrl: TypeConversionUtils.image_X_UrlString(playlist.images),
+      imageUrl: TypeConversionUtils.image_X_UrlString(
+        playlist.images,
+        placeholder: ImagePlaceholder.collection,
+      ),
       isPlaying: isPlaylistPlaying && playback.isPlaying,
       isLoading: playback.status == PlaybackStatus.loading && isPlaylistPlaying,
       onTap: () {
@@ -56,7 +59,10 @@ class PlaylistCard extends HookConsumerWidget {
             tracks: tracks,
             id: playlist.id!,
             name: playlist.name!,
-            thumbnail: TypeConversionUtils.image_X_UrlString(playlist.images),
+            thumbnail: TypeConversionUtils.image_X_UrlString(
+              playlist.images,
+              placeholder: ImagePlaceholder.collection,
+            ),
           ),
         );
       },

lib/components/Playlist/PlaylistView.dart

@@ -33,7 +33,10 @@ class PlaylistView extends HookConsumerWidget {
           tracks: tracks,
           id: playlist.id!,
           name: playlist.name!,
-          thumbnail: TypeConversionUtils.image_X_UrlString(playlist.images),
+          thumbnail: TypeConversionUtils.image_X_UrlString(
+            playlist.images,
+            placeholder: ImagePlaceholder.collection,
+          ),
         ),
         tracks.indexWhere((s) => s.id == currentTrack?.id),
       );
@@ -58,7 +61,10 @@ class PlaylistView extends HookConsumerWidget {
     final tracksSnapshot = ref.watch(playlistTracksQuery(playlist.id!));
 
     final titleImage = useMemoized(
-        () => TypeConversionUtils.image_X_UrlString(playlist.images),
+        () => TypeConversionUtils.image_X_UrlString(
+              playlist.images,
+              placeholder: ImagePlaceholder.collection,
+            ),
         [playlist.images]);
 
     final color = usePaletteGenerator(

lib/components/Search/Search.dart

@@ -110,7 +110,9 @@ class Search extends HookConsumerWidget {
                                 duration: duration,
                                 thumbnailUrl:
                                     TypeConversionUtils.image_X_UrlString(
-                                        track.value.album?.images),
+                                  track.value.album?.images,
+                                  placeholder: ImagePlaceholder.albumArt,
+                                ),
                                 isActive: playback.track?.id == track.value.id,
                                 onTrackPlayButtonPressed: (currentTrack) async {
                                   var isPlaylistPlaying =
@@ -126,6 +128,8 @@ class Search extends HookConsumerWidget {
                                         thumbnail: TypeConversionUtils
                                             .image_X_UrlString(
                                           currentTrack.album?.images,
+                                          placeholder:
+                                              ImagePlaceholder.albumArt,
                                         ),
                                       ),
                                     );

lib/components/Shared/DownloadConfirmationDialog.dart

@@ -1,5 +1,5 @@
-import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
+import 'package:spotube/components/Shared/UniversalImage.dart';
 
 class DownloadConfirmationDialog extends StatelessWidget {
   const DownloadConfirmationDialog({Key? key}) : super(key: key);
@@ -9,11 +9,11 @@ class DownloadConfirmationDialog extends StatelessWidget {
     return AlertDialog(
       contentPadding: const EdgeInsets.all(15),
       title: Row(
-        children: [
+        children: const [
-          const Text("Are you sure?"),
+          Text("Are you sure?"),
-          const SizedBox(width: 10),
+          SizedBox(width: 10),
-          CachedNetworkImage(
+          UniversalImage(
-            imageUrl:
+            path:
                 "https://c.tenor.com/kHcmsxlKHEAAAAAM/rock-one-eyebrow-raised-rock-staring.gif",
             height: 40,
             width: 40,

lib/components/Shared/PlaybuttonCard.dart

@@ -2,6 +2,7 @@ import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
 import 'package:spotube/components/Shared/HoverBuilder.dart';
 import 'package:spotube/components/Shared/SpotubeMarqueeText.dart';
+import 'package:spotube/components/Shared/UniversalImage.dart';
 
 class PlaybuttonCard extends StatelessWidget {
   final void Function()? onTap;
@@ -55,8 +56,8 @@ class PlaybuttonCard extends StatelessWidget {
                     children: [
                       ClipRRect(
                         borderRadius: BorderRadius.circular(8),
-                        child: CachedNetworkImage(
+                        child: UniversalImage(
-                          imageUrl: imageUrl,
+                          path: imageUrl,
                           placeholder: (context, url) =>
                               Image.asset("assets/placeholder.png"),
                         ),

lib/components/Shared/TrackCollectionView.dart

@@ -5,6 +5,7 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:spotube/components/LoaderShimmers/ShimmerTrackTile.dart';
 import 'package:spotube/components/Shared/PageWindowTitleBar.dart';
 import 'package:spotube/components/Shared/TracksTableView.dart';
+import 'package:spotube/components/Shared/UniversalImage.dart';
 import 'package:spotube/utils/type_conversion_utils.dart';
 import 'package:spotube/hooks/useCustomStatusBarColor.dart';
 import 'package:spotube/hooks/usePaletteColor.dart';
@@ -175,9 +176,7 @@ class TrackCollectionView extends HookConsumerWidget {
                                     const BoxConstraints(maxHeight: 200),
                                 child: ClipRRect(
                                   borderRadius: BorderRadius.circular(10),
-                                  child: CachedNetworkImage(
+                                  child: UniversalImage(path: titleImage),
-                                    imageUrl: titleImage,
-                                  ),
                                 ),
                               ),
                               Column(

lib/components/Shared/TracksTableView.dart

@@ -149,6 +149,7 @@ class TracksTableView extends HookConsumerWidget {
         String? thumbnailUrl = TypeConversionUtils.image_X_UrlString(
           track.value.album?.images,
           index: (track.value.album?.images?.length ?? 1) - 1,
+          placeholder: ImagePlaceholder.albumArt,
         );
         String duration =
             "${track.value.duration?.inMinutes.remainder(60)}:${PrimitiveUtils.zeroPadNumStr(track.value.duration?.inSeconds.remainder(60) ?? 0)}";

lib/provider/Downloader.dart

@@ -98,12 +98,9 @@ class Downloader with ChangeNotifier {
           );
           final imageUri = TypeConversionUtils.image_X_UrlString(
             track.album?.images ?? [],
+            placeholder: ImagePlaceholder.online,
           );
-          final response = await get(
+          final response = await get(Uri.parse(imageUri));
-            Uri.parse(
-              imageUri,
-            ),
-          );
 
           await MetadataGod.writeMetadata(
             file,

lib/provider/Playback.dart

@@ -210,6 +210,7 @@ class Playback extends PersistedChangeNotifier {
         artUri: Uri.parse(
           TypeConversionUtils.image_X_UrlString(
             track.album?.images,
+            placeholder: ImagePlaceholder.online,
           ),
         ),
         duration: track.ytTrack.duration,

lib/provider/SpotifyRequests.dart

@@ -133,7 +133,10 @@ final currentUserQuery = FutureProvider<User>(
         Image()
           ..height = 50
           ..width = 50
-          ..url = TypeConversionUtils.image_X_UrlString(me.images),
+          ..url = TypeConversionUtils.image_X_UrlString(
+            me.images,
+            placeholder: ImagePlaceholder.artist,
+          ),
       ];
     }
     return me;

lib/services/LinuxAudioService.dart

@@ -298,7 +298,9 @@ class _MprisMediaPlayer2Player extends DBusObject {
           "mpris:length": DBusInt32(playback.currentDuration.inMicroseconds),
           "mpris:artUrl": DBusString(
             TypeConversionUtils.image_X_UrlString(
-                playback.track?.album?.images),
+              playback.track?.album?.images,
+              placeholder: ImagePlaceholder.albumArt,
+            ),
           ),
           "xesam:album": DBusString(playback.track!.album!.name!),
           "xesam:artist": DBusArray.string(

lib/utils/type_conversion_utils.dart

@@ -11,11 +11,29 @@ import 'package:spotube/models/SpotubeTrack.dart';
 import 'package:spotube/utils/primitive_utils.dart';
 import 'package:youtube_explode_dart/youtube_explode_dart.dart';
 
+enum ImagePlaceholder {
+  albumArt,
+  artist,
+  collection,
+  online,
+}
+
 abstract class TypeConversionUtils {
-  static String image_X_UrlString(List<Image>? images, {int index = 0}) {
+  static String image_X_UrlString(
+    List<Image>? images, {
+    int index = 0,
+    required ImagePlaceholder placeholder,
+  }) {
+    final String placeholderUrl = {
+      ImagePlaceholder.albumArt: "assets/album-placeholder.png",
+      ImagePlaceholder.artist: "assets/user-placeholder.png",
+      ImagePlaceholder.collection: "assets/placeholder.png",
+      ImagePlaceholder.online:
+          "https://avatars.dicebear.com/api/bottts/${PrimitiveUtils.uuid.v4()}.png",
+    }[placeholder]!;
     return images != null && images.isNotEmpty
         ? images[0].url!
-        : "https://avatars.dicebear.com/api/bottts/${PrimitiveUtils.uuid.v4()}.png";
+        : placeholderUrl;
   }
 
   static String artists_X_String<T extends ArtistSimple>(List<T> artists) {