feat: add ErrorBox and NoDefaultMetadataPlugin components

- Implemented ErrorBox for displaying error messages with retry functionality and log viewing.
- Created NoDefaultMetadataPlugin to inform users about missing default metadata providers and provide navigation to manage them.

assets/fonts/Ubuntu_Mono/UFL.txt

@@ -0,0 +1,96 @@
+-------------------------------
+UBUNTU FONT LICENCE Version 1.0
+-------------------------------
+
+PREAMBLE
+This licence allows the licensed fonts to be used, studied, modified and
+redistributed freely. The fonts, including any derivative works, can be
+bundled, embedded, and redistributed provided the terms of this licence
+are met. The fonts and derivatives, however, cannot be released under
+any other licence. The requirement for fonts to remain under this
+licence does not require any document created using the fonts or their
+derivatives to be published under this licence, as long as the primary
+purpose of the document is not to be a vehicle for the distribution of
+the fonts.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this licence and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Original Version" refers to the collection of Font Software components
+as received under this licence.
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to
+a new environment.
+
+"Copyright Holder(s)" refers to all individuals and companies who have a
+copyright ownership of the Font Software.
+
+"Substantially Changed" refers to Modified Versions which can be easily
+identified as dissimilar to the Font Software by users of the Font
+Software comparing the Original Version with the Modified Version.
+
+To "Propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification and with or without charging
+a redistribution fee), making available to the public, and in some
+countries other activities as well.
+
+PERMISSION & CONDITIONS
+This licence does not grant any rights under trademark law and all such
+rights are reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of the Font Software, to propagate the Font Software, subject to
+the below conditions:
+
+1) Each copy of the Font Software must contain the above copyright
+notice and this licence. These can be included either as stand-alone
+text files, human-readable headers or in the appropriate machine-
+readable metadata fields within text or binary files as long as those
+fields can be easily viewed by the user.
+
+2) The font name complies with the following:
+(a) The Original Version must retain its name, unmodified.
+(b) Modified Versions which are Substantially Changed must be renamed to
+avoid use of the name of the Original Version or similar names entirely.
+(c) Modified Versions which are not Substantially Changed must be
+renamed to both (i) retain the name of the Original Version and (ii) add
+additional naming elements to distinguish the Modified Version from the
+Original Version. The name of such Modified Versions must be the name of
+the Original Version, with "derivative X" where X represents the name of
+the new work, appended to that name.
+
+3) The name(s) of the Copyright Holder(s) and any contributor to the
+Font Software shall not be used to promote, endorse or advertise any
+Modified Version, except (i) as required by this licence, (ii) to
+acknowledge the contribution(s) of the Copyright Holder(s) or (iii) with
+their explicit written permission.
+
+4) The Font Software, modified or unmodified, in part or in whole, must
+be distributed entirely under this licence, and must not be distributed
+under any other licence. The requirement for fonts to remain under this
+licence does not affect any document created using the Font Software,
+except any version of the Font Software extracted from a document
+created using the Font Software may only be distributed under this
+licence.
+
+TERMINATION
+This licence becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER
+DEALINGS IN THE FONT SOFTWARE.

lib/components/fallbacks/error_box.dart

@@ -0,0 +1,137 @@
+import 'package:auto_route/auto_route.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:shadcn_flutter/shadcn_flutter.dart';
+import 'package:shadcn_flutter/shadcn_flutter_extension.dart';
+import 'package:spotube/collections/spotube_icons.dart';
+
+class ErrorBox extends StatelessWidget {
+  final Object error;
+  final VoidCallback? onRetry;
+  const ErrorBox({
+    super.key,
+    required this.error,
+    this.onRetry,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    // Make a monospace error log view. Make sure it's only 4 lines
+    return ConstrainedBox(
+      constraints: const BoxConstraints(maxWidth: 400),
+      child: Padding(
+        padding: const EdgeInsets.all(8.0),
+        child: Card(
+          child: Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            mainAxisSize: MainAxisSize.min,
+            spacing: 12,
+            children: [
+              const Basic(
+                leading: Icon(SpotubeIcons.error),
+                contentSpacing: 8,
+                title: Text("An error occurred"),
+              ),
+              Card(
+                padding: const EdgeInsets.all(8.0),
+                filled: true,
+                fillColor: context.theme.colorScheme.muted,
+                child: Text(
+                  error.toString(),
+                  style: TextStyle(
+                    // Use monospace
+                    fontFamily: 'Ubuntu Mono',
+                    color: context.theme.colorScheme.mutedForeground,
+                    fontSize: 14,
+                  ),
+                  maxLines: 6,
+                  overflow: TextOverflow.ellipsis,
+                ),
+              ),
+              // Show a dialog with full log and a retry button as well
+              Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Button.text(
+                    leading: const Icon(SpotubeIcons.logs),
+                    onPressed: () {
+                      showDialog(
+                        context: context,
+                        builder: (context) {
+                          return ConstrainedBox(
+                            constraints: BoxConstraints(
+                              maxWidth: 480,
+                              maxHeight:
+                                  MediaQuery.of(context).size.height * 0.8,
+                            ),
+                            child: AlertDialog(
+                              padding: const EdgeInsets.all(12),
+                              title: Row(
+                                spacing: 8,
+                                children: [
+                                  const Icon(SpotubeIcons.logs),
+                                  const Text("Logs"),
+                                  const Spacer(),
+                                  IconButton.ghost(
+                                    icon: const Icon(SpotubeIcons.close),
+                                    onPressed: () => context.maybePop(),
+                                  )
+                                ],
+                              ),
+                              actions: [
+                                HookBuilder(builder: (context) {
+                                  final copied = useState(false);
+
+                                  return Button.ghost(
+                                    leading: copied.value
+                                        ? const Icon(SpotubeIcons.done)
+                                        : const Icon(SpotubeIcons.clipboard),
+                                    child: const Text("Copy to clipboard"),
+                                    onPressed: () {
+                                      Clipboard.setData(
+                                        ClipboardData(text: error.toString()),
+                                      );
+                                      copied.value = true;
+                                    },
+                                  );
+                                })
+                              ],
+                              content: SingleChildScrollView(
+                                child: Card(
+                                  padding: const EdgeInsets.all(8.0),
+                                  filled: true,
+                                  fillColor: context.theme.colorScheme.muted,
+                                  child: SelectableText(
+                                    error.toString(),
+                                    style: TextStyle(
+                                      // Use monospace
+                                      fontFamily: 'Ubuntu Mono',
+                                      color: context
+                                          .theme.colorScheme.mutedForeground,
+                                      fontSize: 16,
+                                    ),
+                                  ),
+                                ),
+                              ),
+                            ),
+                          );
+                        },
+                      );
+                    },
+                    child: const Text("View logs"),
+                  ),
+                  if (onRetry != null)
+                    Button.text(
+                      leading: const Icon(SpotubeIcons.refresh),
+                      onPressed: onRetry,
+                      child: const Text("Retry"),
+                    ),
+                ],
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/components/fallbacks/no_default_metadata_plugin.dart

@@ -0,0 +1,41 @@
+import 'package:auto_route/auto_route.dart';
+import 'package:auto_size_text/auto_size_text.dart';
+import 'package:flutter_undraw/flutter_undraw.dart';
+import 'package:shadcn_flutter/shadcn_flutter.dart';
+import 'package:shadcn_flutter/shadcn_flutter_extension.dart';
+import 'package:spotube/collections/routes.gr.dart';
+import 'package:spotube/collections/spotube_icons.dart';
+
+class NoDefaultMetadataPlugin extends StatelessWidget {
+  const NoDefaultMetadataPlugin({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: const EdgeInsets.all(8.0),
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        spacing: 10,
+        children: [
+          Undraw(
+            height: 200 * context.theme.scaling,
+            illustration: UndrawIllustration.stars,
+            color: context.theme.colorScheme.primary,
+          ),
+          AutoSizeText(
+            "You've no default metadata provider set",
+            style: context.theme.typography.h4,
+            maxLines: 1,
+          ),
+          Button.primary(
+            leading: const Icon(SpotubeIcons.extensions),
+            child: const Text("Manage metadata providers"),
+            onPressed: () {
+              context.pushRoute(const SettingsMetadataProviderRoute());
+            },
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/modules/home/sections/sections.dart

@@ -2,10 +2,13 @@ import 'package:auto_route/auto_route.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_flutter/shadcn_flutter.dart';
 import 'package:spotube/collections/routes.gr.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
+import 'package:spotube/components/fallbacks/no_default_metadata_plugin.dart';
 import 'package:spotube/components/horizontal_playbutton_card_view/horizontal_playbutton_card_view.dart';
 import 'package:spotube/extensions/context.dart';
 import 'package:spotube/provider/metadata_plugin/browse/sections.dart';
 import 'package:spotube/provider/metadata_plugin/utils/common.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 import 'package:very_good_infinite_list/very_good_infinite_list.dart';
 import 'package:flutter_undraw/flutter_undraw.dart';
 
@@ -44,6 +47,29 @@ class HomePageBrowseSection extends HookConsumerWidget {
       );
     }
 
+    if (browseSections.error
+        case MetadataPluginException(
+          errorCode: MetadataPluginErrorCode.noDefaultPlugin,
+          message: _,
+        )) {
+      return const SliverFillRemaining(
+        child: Center(child: NoDefaultMetadataPlugin()),
+      );
+    }
+
+    if (browseSections.hasError) {
+      return SliverFillRemaining(
+        child: Center(
+          child: ErrorBox(
+            error: browseSections.error!,
+            onRetry: () {
+              ref.invalidate(metadataPluginBrowseSectionsProvider);
+            },
+          ),
+        ),
+      );
+    }
+
     return SliverInfiniteList(
       hasReachedMax: browseSections.asData?.value.hasMore == false,
       isLoading: !browseSections.isLoading && browseSections.isLoadingNextPage,

lib/modules/root/sidebar/sidebar.dart

@@ -80,6 +80,9 @@ class Sidebar extends HookConsumerWidget {
       ),
       for (final tile in sidebarTileList)
         NavigationButton(
+          style: router.currentPath.startsWith(tile.pathPrefix)
+              ? const ButtonStyle.secondary()
+              : null,
           label: mediaQuery.lgAndUp ? Text(tile.title) : null,
           child: Tooltip(
             tooltip: TooltipContainer(child: Text(tile.title)).call,
@@ -94,6 +97,9 @@ class Sidebar extends HookConsumerWidget {
         NavigationLabel(child: Text(context.l10n.library)),
       for (final tile in sidebarLibraryTileList)
         NavigationButton(
+          style: router.currentPath.startsWith(tile.pathPrefix)
+              ? const ButtonStyle.secondary()
+              : null,
           label: mediaQuery.lgAndUp ? Text(tile.title) : null,
           onPressed: () {
             context.navigateTo(tile.route);

lib/pages/getting_started/sections/support.dart

@@ -104,15 +104,15 @@ class GettingStartedScreenSupportSection extends HookConsumerWidget {
             child: Column(
               crossAxisAlignment: CrossAxisAlignment.stretch,
               children: [
-                Button.secondary(
+                Button.primary(
-                  leading: const Icon(SpotubeIcons.anonymous),
+                  leading: const Icon(SpotubeIcons.extensions),
                   onPressed: () async {
                     await KVStoreService.setDoneGettingStarted(true);
                     if (context.mounted) {
-                      context.navigateTo(const HomeRoute());
+                      context.pushRoute(const SettingsMetadataProviderRoute());
                     }
                   },
-                  child: Text(context.l10n.browse_anonymously),
+                  child: const Text("Install a Metadata Provider"),
                 ),
               ],
             ),

lib/pages/library/user_albums.dart

@@ -9,6 +9,8 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_flutter/shadcn_flutter_extension.dart';
 
 import 'package:spotube/collections/spotube_icons.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
+import 'package:spotube/components/fallbacks/no_default_metadata_plugin.dart';
 import 'package:spotube/components/playbutton_view/playbutton_view.dart';
 import 'package:spotube/modules/album/album_card.dart';
 import 'package:spotube/components/inter_scrollbar/inter_scrollbar.dart';
@@ -17,6 +19,7 @@ import 'package:spotube/extensions/context.dart';
 import 'package:spotube/provider/metadata_plugin/core/auth.dart';
 import 'package:spotube/provider/metadata_plugin/library/albums.dart';
 import 'package:auto_route/auto_route.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 @RoutePage()
 class UserAlbumsPage extends HookConsumerWidget {
@@ -50,10 +53,27 @@ class UserAlbumsPage extends HookConsumerWidget {
           [];
     }, [albumsQuery.asData?.value, searchText.value]);
 
+    if (albumsQuery.error
+        case MetadataPluginException(
+          errorCode: MetadataPluginErrorCode.noDefaultPlugin,
+          message: _,
+        )) {
+      return const Center(child: NoDefaultMetadataPlugin());
+    }
+
     if (authenticated.asData?.value != true) {
       return const AnonymousFallback();
     }
 
+    if (albumsQuery.hasError) {
+      return ErrorBox(
+        error: albumsQuery.error!,
+        onRetry: () {
+          ref.invalidate(metadataPluginSavedAlbumsProvider);
+        },
+      );
+    }
+
     return SafeArea(
       bottom: false,
       child: Scaffold(

lib/pages/library/user_artists.dart

@@ -12,6 +12,8 @@ import 'package:spotube/collections/fake.dart';
 
 import 'package:spotube/collections/spotube_icons.dart';
 import 'package:spotube/components/fallbacks/anonymous_fallback.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
+import 'package:spotube/components/fallbacks/no_default_metadata_plugin.dart';
 import 'package:spotube/modules/artist/artist_card.dart';
 import 'package:spotube/components/inter_scrollbar/inter_scrollbar.dart';
 import 'package:spotube/components/waypoint.dart';
@@ -20,6 +22,7 @@ import 'package:spotube/extensions/context.dart';
 import 'package:spotube/provider/metadata_plugin/core/auth.dart';
 import 'package:spotube/provider/metadata_plugin/library/artists.dart';
 import 'package:auto_route/auto_route.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 @RoutePage()
 class UserArtistsPage extends HookConsumerWidget {
@@ -55,10 +58,27 @@ class UserArtistsPage extends HookConsumerWidget {
 
     final controller = useScrollController();
 
+    if (artistQuery.error
+        case MetadataPluginException(
+          errorCode: MetadataPluginErrorCode.noDefaultPlugin,
+          message: _,
+        )) {
+      return const Center(child: NoDefaultMetadataPlugin());
+    }
+
     if (authenticated.asData?.value != true) {
       return const AnonymousFallback();
     }
 
+    if (artistQuery.hasError) {
+      return ErrorBox(
+        error: artistQuery.error!,
+        onRetry: () {
+          ref.invalidate(metadataPluginSavedArtistsProvider);
+        },
+      );
+    }
+
     return SafeArea(
       bottom: false,
       child: Scaffold(

lib/pages/library/user_playlists.dart

@@ -8,6 +8,8 @@ import 'package:shadcn_flutter/shadcn_flutter_extension.dart';
 import 'package:spotube/collections/assets.gen.dart';
 
 import 'package:spotube/collections/spotube_icons.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
+import 'package:spotube/components/fallbacks/no_default_metadata_plugin.dart';
 import 'package:spotube/components/playbutton_view/playbutton_view.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/modules/playlist/playlist_create_dialog.dart';
@@ -19,6 +21,7 @@ import 'package:spotube/provider/metadata_plugin/core/auth.dart';
 import 'package:spotube/provider/metadata_plugin/library/playlists.dart';
 import 'package:spotube/provider/metadata_plugin/core/user.dart';
 import 'package:auto_route/auto_route.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 @RoutePage()
 class UserPlaylistsPage extends HookConsumerWidget {
@@ -78,10 +81,27 @@ class UserPlaylistsPage extends HookConsumerWidget {
 
     final controller = useScrollController();
 
+    if (playlistsQuery.error
+        case MetadataPluginException(
+          errorCode: MetadataPluginErrorCode.noDefaultPlugin,
+          message: _,
+        )) {
+      return const Center(child: NoDefaultMetadataPlugin());
+    }
+
     if (authenticated.asData?.value != true) {
       return const AnonymousFallback();
     }
 
+    if (playlistsQuery.hasError) {
+      return ErrorBox(
+        error: playlistsQuery.error!,
+        onRetry: () {
+          ref.invalidate(metadataPluginSavedPlaylistsProvider);
+        },
+      );
+    }
+
     return material.RefreshIndicator.adaptive(
       onRefresh: () async {
         ref.invalidate(metadataPluginSavedPlaylistsProvider);

lib/pages/search/search.dart

@@ -7,7 +7,8 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:spotube/collections/routes.gr.dart';
 
 import 'package:spotube/collections/spotube_icons.dart';
-import 'package:spotube/components/fallbacks/anonymous_fallback.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
+import 'package:spotube/components/fallbacks/no_default_metadata_plugin.dart';
 import 'package:spotube/components/titlebar/titlebar.dart';
 import 'package:spotube/extensions/context.dart';
 import 'package:spotube/extensions/string.dart';
@@ -17,10 +18,10 @@ import 'package:spotube/pages/search/tabs/all.dart';
 import 'package:spotube/pages/search/tabs/artists.dart';
 import 'package:spotube/pages/search/tabs/playlists.dart';
 import 'package:spotube/pages/search/tabs/tracks.dart';
-import 'package:spotube/provider/metadata_plugin/core/auth.dart';
 import 'package:spotube/provider/metadata_plugin/search/all.dart';
 import 'package:spotube/services/kv_store/kv_store.dart';
 import 'package:auto_route/auto_route.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 final searchTermStateProvider = StateProvider<String>((ref) {
   return "";
@@ -37,8 +38,6 @@ class SearchPage extends HookConsumerWidget {
     final controller = useShadcnTextEditingController();
     final focusNode = useFocusNode();
 
-    final authenticated = ref.watch(metadataPluginAuthenticatedProvider);
-
     final searchTerm = ref.watch(searchTermStateProvider);
     final searchChipSnapshot = ref.watch(metadataPluginSearchChipsProvider);
     final selectedChip = useState<String?>(
@@ -83,9 +82,25 @@ class SearchPage extends HookConsumerWidget {
             if (kTitlebarVisible)
               const TitleBar(automaticallyImplyLeading: false, height: 30)
           ],
-          child: authenticated.asData?.value != true
+          child: Builder(builder: (context) {
-              ? const AnonymousFallback()
+            if (searchChipSnapshot.error
-              : Column(
+                case MetadataPluginException(
+                  errorCode: MetadataPluginErrorCode.noDefaultPlugin,
+                  message: _
+                )) {
+              return const NoDefaultMetadataPlugin();
+            }
+
+            if (searchChipSnapshot.hasError) {
+              return ErrorBox(
+                error: searchChipSnapshot.error!,
+                onRetry: () {
+                  ref.invalidate(metadataPluginSearchChipsProvider);
+                },
+              );
+            }
+
+            return Column(
               children: [
                 Row(
                   crossAxisAlignment: CrossAxisAlignment.center,
@@ -144,22 +159,21 @@ class SearchPage extends HookConsumerWidget {
                                       ),
                                       InputFeature.trailing(
                                         AnimatedCrossFade(
-                                              duration: const Duration(
+                                          duration:
-                                                  milliseconds: 300),
+                                              const Duration(milliseconds: 300),
-                                              crossFadeState: controller
+                                          crossFadeState:
-                                                      .text.isNotEmpty
+                                              controller.text.isNotEmpty
                                                   ? CrossFadeState.showFirst
                                                   : CrossFadeState.showSecond,
                                           firstChild: IconButton.ghost(
                                             size: ButtonSize.small,
-                                                icon: const Icon(
+                                            icon:
-                                                    SpotubeIcons.close),
+                                                const Icon(SpotubeIcons.close),
                                             onPressed: () {
                                               controller.clear();
                                             },
                                           ),
-                                              secondChild:
+                                          secondChild: const SizedBox.square(
-                                                  const SizedBox.square(
                                               dimension: 28),
                                         ),
                                       )
@@ -223,7 +237,8 @@ class SearchPage extends HookConsumerWidget {
                   ),
                 ),
               ],
-                ),
+            );
+          }),
         ),
       ),
     );

lib/pages/search/tabs/albums.dart

@@ -2,6 +2,7 @@ import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_flutter/shadcn_flutter.dart';
 import 'package:spotube/collections/fake.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
 import 'package:spotube/components/playbutton_view/playbutton_view.dart';
 import 'package:spotube/modules/album/album_card.dart';
 import 'package:spotube/modules/search/loading.dart';
@@ -23,6 +24,15 @@ class SearchPageAlbumsTab extends HookConsumerWidget {
     final searchAlbums =
         searchAlbumsSnapshot.asData?.value.items ?? [FakeData.albumSimple];
 
+    if (searchAlbumsSnapshot.hasError) {
+      return ErrorBox(
+        error: searchAlbumsSnapshot.error!,
+        onRetry: () {
+          ref.invalidate(metadataPluginSearchAlbumsProvider(searchTerm));
+        },
+      );
+    }
+
     return SearchPlaceholder(
       snapshot: searchAlbumsSnapshot,
       child: Padding(

lib/pages/search/tabs/all.dart

@@ -1,5 +1,6 @@
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_flutter/shadcn_flutter.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
 import 'package:spotube/components/inter_scrollbar/inter_scrollbar.dart';
 import 'package:spotube/modules/search/loading.dart';
 import 'package:spotube/pages/search/search.dart';
@@ -19,6 +20,15 @@ class SearchPageAllTab extends HookConsumerWidget {
     final searchSnapshot =
         ref.watch(metadataPluginSearchAllProvider(searchTerm));
 
+    if (searchSnapshot.hasError) {
+      return ErrorBox(
+        error: searchSnapshot.error!,
+        onRetry: () {
+          ref.invalidate(metadataPluginSearchAllProvider(searchTerm));
+        },
+      );
+    }
+
     return SearchPlaceholder(
       snapshot: searchSnapshot,
       child: InterScrollbar(

lib/pages/search/tabs/artists.dart

@@ -5,6 +5,7 @@ import 'package:shadcn_flutter/shadcn_flutter.dart';
 import 'package:shadcn_flutter/shadcn_flutter_extension.dart';
 import 'package:skeletonizer/skeletonizer.dart';
 import 'package:spotube/collections/fake.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
 import 'package:spotube/components/waypoint.dart';
 import 'package:spotube/extensions/constrains.dart';
 import 'package:spotube/extensions/context.dart';
@@ -27,6 +28,15 @@ class SearchPageArtistsTab extends HookConsumerWidget {
         ref.read(metadataPluginSearchArtistsProvider(searchTerm).notifier);
     final searchArtists = searchArtistsSnapshot.asData?.value.items ?? [];
 
+    if (searchArtistsSnapshot.hasError) {
+      return ErrorBox(
+        error: searchArtistsSnapshot.error!,
+        onRetry: () {
+          ref.invalidate(metadataPluginSearchArtistsProvider(searchTerm));
+        },
+      );
+    }
+
     return SearchPlaceholder(
       snapshot: searchArtistsSnapshot,
       child: AnimatedSwitcher(

lib/pages/search/tabs/playlists.dart

@@ -2,6 +2,7 @@ import 'package:flutter_hooks/flutter_hooks.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:shadcn_flutter/shadcn_flutter.dart';
 import 'package:spotube/collections/fake.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
 import 'package:spotube/components/playbutton_view/playbutton_view.dart';
 import 'package:spotube/modules/playlist/playlist_card.dart';
 import 'package:spotube/modules/search/loading.dart';
@@ -23,6 +24,15 @@ class SearchPagePlaylistsTab extends HookConsumerWidget {
     final searchPlaylists = searchPlaylistsSnapshot.asData?.value.items ??
         [FakeData.playlistSimple];
 
+    if (searchPlaylistsSnapshot.hasError) {
+      return ErrorBox(
+        error: searchPlaylistsSnapshot.error!,
+        onRetry: () {
+          ref.invalidate(metadataPluginSearchPlaylistsProvider(searchTerm));
+        },
+      );
+    }
+
     return SearchPlaceholder(
       snapshot: searchPlaylistsSnapshot,
       child: Padding(

lib/pages/search/tabs/tracks.dart

@@ -4,6 +4,7 @@ import 'package:skeletonizer/skeletonizer.dart';
 import 'package:spotube/collections/fake.dart';
 import 'package:spotube/components/dialogs/prompt_dialog.dart';
 import 'package:spotube/components/dialogs/select_device_dialog.dart';
+import 'package:spotube/components/fallbacks/error_box.dart';
 import 'package:spotube/components/track_tile/track_tile.dart';
 import 'package:spotube/extensions/context.dart';
 import 'package:spotube/models/connect/connect.dart';
@@ -31,6 +32,15 @@ class SearchPageTracksTab extends HookConsumerWidget {
     final playlist = ref.watch(audioPlayerProvider);
     final playlistNotifier = ref.watch(audioPlayerProvider.notifier);
 
+    if (searchTracksSnapshot.hasError) {
+      return ErrorBox(
+        error: searchTracksSnapshot.error!,
+        onRetry: () {
+          ref.invalidate(metadataPluginSearchTracksProvider(searchTerm));
+        },
+      );
+    }
+
     return SearchPlaceholder(
       snapshot: searchTracksSnapshot,
       child: InfiniteList(

lib/provider/metadata_plugin/album/album.dart

@@ -2,7 +2,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/provider/metadata_plugin/metadata_plugin_provider.dart';
 import 'package:spotube/provider/metadata_plugin/utils/common.dart';
-import 'package:spotube/services/metadata/endpoints/error.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 final metadataPluginAlbumProvider =
     FutureProvider.autoDispose.family<SpotubeFullAlbumObject, String>(
@@ -12,9 +12,7 @@ final metadataPluginAlbumProvider =
     final metadataPlugin = await ref.watch(metadataPluginProvider.future);
 
     if (metadataPlugin == null) {
-      throw MetadataPluginException.noDefaultPlugin(
+      throw MetadataPluginException.noDefaultPlugin();
-        "No metadata plugin is not set",
-      );
     }
 
     return metadataPlugin.album.getAlbum(id);

lib/provider/metadata_plugin/artist/artist.dart

@@ -2,7 +2,7 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/provider/metadata_plugin/metadata_plugin_provider.dart';
 import 'package:spotube/provider/metadata_plugin/utils/common.dart';
-import 'package:spotube/services/metadata/endpoints/error.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 final metadataPluginArtistProvider =
     FutureProvider.autoDispose.family<SpotubeFullArtistObject, String>(
@@ -12,9 +12,7 @@ final metadataPluginArtistProvider =
     final metadataPlugin = await ref.watch(metadataPluginProvider.future);
 
     if (metadataPlugin == null) {
-      throw MetadataPluginException.noDefaultPlugin(
+      throw MetadataPluginException.noDefaultPlugin();
-        "No metadata plugin is not set",
-      );
     }
 
     return metadataPlugin.artist.getArtist(artistId);

lib/provider/metadata_plugin/library/playlists.dart

@@ -4,7 +4,7 @@ import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/provider/metadata_plugin/metadata_plugin_provider.dart';
 import 'package:spotube/provider/metadata_plugin/tracks/playlist.dart';
 import 'package:spotube/provider/metadata_plugin/utils/paginated.dart';
-import 'package:spotube/services/metadata/endpoints/error.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 class MetadataPluginSavedPlaylistsNotifier
     extends PaginatedAsyncNotifier<SpotubeSimplePlaylistObject> {
@@ -111,9 +111,7 @@ final metadataPluginIsSavedPlaylistProvider =
     final plugin = await ref.watch(metadataPluginProvider.future);
 
     if (plugin == null) {
-      throw MetadataPluginException.noDefaultPlugin(
+      throw MetadataPluginException.noDefaultPlugin();
-        "Failed to get metadata plugin",
-      );
     }
 
     final follows = await plugin.user.isSavedPlaylist(id);

lib/provider/metadata_plugin/playlist/playlist.dart

@@ -4,7 +4,7 @@ import 'package:spotube/provider/metadata_plugin/library/playlists.dart';
 import 'package:spotube/provider/metadata_plugin/metadata_plugin_provider.dart';
 import 'package:spotube/provider/metadata_plugin/core/user.dart';
 import 'package:spotube/provider/metadata_plugin/utils/common.dart';
-import 'package:spotube/services/metadata/endpoints/error.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 import 'package:spotube/services/metadata/metadata.dart';
 
 class MetadataPluginPlaylistNotifier
@@ -13,9 +13,7 @@ class MetadataPluginPlaylistNotifier
     final metadataPlugin = await ref.read(metadataPluginProvider.future);
 
     if (metadataPlugin == null) {
-      throw MetadataPluginException.noDefaultPlugin(
+      throw MetadataPluginException.noDefaultPlugin();
-        "Metadata plugin is not set",
-      );
     }
 
     return metadataPlugin;

lib/provider/metadata_plugin/search/all.dart

@@ -1,7 +1,7 @@
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/provider/metadata_plugin/metadata_plugin_provider.dart';
-import 'package:spotube/services/metadata/endpoints/error.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 final metadataPluginSearchAllProvider =
     FutureProvider.autoDispose.family<SpotubeSearchResponseObject, String>(
@@ -9,9 +9,7 @@ final metadataPluginSearchAllProvider =
     final metadataPlugin = await ref.watch(metadataPluginProvider.future);
 
     if (metadataPlugin == null) {
-      throw MetadataPluginException.noDefaultPlugin(
+      throw MetadataPluginException.noDefaultPlugin();
-        "No default metadata plugin found",
-      );
     }
 
     return metadataPlugin.search.all(query);
@@ -22,9 +20,7 @@ final metadataPluginSearchChipsProvider = FutureProvider((ref) async {
   final metadataPlugin = await ref.watch(metadataPluginProvider.future);
 
   if (metadataPlugin == null) {
-    throw MetadataPluginException.noDefaultPlugin(
+    throw MetadataPluginException.noDefaultPlugin();
-      "No default metadata plugin found",
-    );
   }
   return metadataPlugin.search.chips;
 });

lib/provider/metadata_plugin/tracks/track.dart

@@ -1,15 +1,14 @@
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 import 'package:spotube/provider/metadata_plugin/metadata_plugin_provider.dart';
-import 'package:spotube/services/metadata/endpoints/error.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 
 final metadataPluginTrackProvider =
     FutureProvider.family<SpotubeFullTrackObject, String>((ref, trackId) async {
   final metadataPlugin = await ref.watch(metadataPluginProvider.future);
 
   if (metadataPlugin == null) {
-    throw MetadataPluginException.noDefaultPlugin(
+    throw MetadataPluginException.noDefaultPlugin();
-        "No metadata plugin is set as default.");
   }
 
   return metadataPlugin.track.getTrack(trackId);

lib/provider/metadata_plugin/utils/common.dart

@@ -6,7 +6,7 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:spotube/models/metadata/metadata.dart';
 
 import 'package:spotube/provider/metadata_plugin/metadata_plugin_provider.dart';
-import 'package:spotube/services/metadata/endpoints/error.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 import 'package:spotube/services/metadata/metadata.dart';
 
 extension PaginationExtension<T> on AsyncValue<T> {
@@ -20,8 +20,7 @@ mixin MetadataPluginMixin<K>
     final plugin = await ref.read(metadataPluginProvider.future);
 
     if (plugin == null) {
-      throw MetadataPluginException.noDefaultPlugin(
+      throw MetadataPluginException.noDefaultPlugin();
-          "Metadata plugin is not set");
     }
 
     return plugin;

lib/provider/track_options/track_options_provider.dart

@@ -20,7 +20,7 @@ import 'package:spotube/provider/metadata_plugin/core/auth.dart';
 import 'package:spotube/provider/metadata_plugin/library/playlists.dart';
 import 'package:spotube/provider/metadata_plugin/library/tracks.dart';
 import 'package:spotube/provider/metadata_plugin/metadata_plugin_provider.dart';
-import 'package:spotube/services/metadata/endpoints/error.dart';
+import 'package:spotube/services/metadata/errors/exceptions.dart';
 import 'package:url_launcher/url_launcher_string.dart';
 
 enum TrackOptionValue {
@@ -97,9 +97,7 @@ class TrackOptionsActions {
     final metadataPlugin = await ref.read(metadataPluginProvider.future);
 
     if (metadataPlugin == null) {
-      throw MetadataPluginException.noDefaultPlugin(
+      throw MetadataPluginException.noDefaultPlugin();
-        "No default metadata plugin set",
-      );
     }
 
     final tracks = await metadataPlugin.track.radio(track.id);

lib/services/metadata/endpoints/error.dart

@@ -1,12 +0,0 @@
-class MetadataPluginException implements Exception {
-  final String exceptionType;
-  final String message;
-
-  MetadataPluginException.noDefaultPlugin(this.message)
-      : exceptionType = "NoDefault";
-
-  @override
-  String toString() {
-    return "${exceptionType}MetadataPluginException: $message";
-  }
-}

lib/services/metadata/errors/exceptions.dart

@@ -9,6 +9,7 @@ enum MetadataPluginErrorCode {
   pluginDownloadFailed,
   duplicatePlugin,
   pluginByteCodeFileNotFound,
+  noDefaultPlugin,
 }
 
 class MetadataPluginException implements Exception {
@@ -67,6 +68,11 @@ class MetadataPluginException implements Exception {
           'Plugin byte code file, plugin.out not found. Please ensure the plugin is correctly packaged.',
           errorCode: MetadataPluginErrorCode.pluginByteCodeFileNotFound,
         );
+  MetadataPluginException.noDefaultPlugin()
+      : this._(
+          'No default metadata plugin is set. Please set a default plugin in the settings.',
+          errorCode: MetadataPluginErrorCode.noDefaultPlugin,
+        );
 
   @override
   String toString() => 'MetadataPluginException: $message';

pubspec.yaml

@@ -216,6 +216,7 @@ flutter:
     - packages/flutter_undraw/assets/undraw/empty.svg
     - packages/flutter_undraw/assets/undraw/no_data.svg
     - packages/flutter_undraw/assets/undraw/process.svg
+    - packages/flutter_undraw/assets/undraw/stars.svg
     # hetu script bytecode
     - packages/hetu_std/assets/bytecode/std.out
     - packages/hetu_otp_util/assets/bytecode/otp_util.out
@@ -232,6 +233,20 @@ flutter:
         - asset: assets/fonts/Cookie-Regular.ttf
           style: normal
           weight: 500
+    - family: Ubuntu Mono
+      fonts:
+        - asset: assets/fonts/Ubuntu_Mono/UbuntuMono-Regular.ttf
+          style: normal
+          weight: 400
+        - asset: assets/fonts/Ubuntu_Mono/UbuntuMono-Bold.ttf
+          style: normal
+          weight: 700
+        - asset: assets/fonts/Ubuntu_Mono/UbuntuMono-Italic.ttf
+          style: italic
+          weight: 400
+        - asset: assets/fonts/Ubuntu_Mono/UbuntuMono-BoldItalic.ttf
+          style: italic
+          weight: 700
 
 flutter_gen:
   output: lib/collections