feat(web): polish catalog motion, empty states, and mobile now-playing

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/web/src/pages/PlaylistsPage.tsx

@@ -1,16 +1,17 @@
 import { unwrap } from '@pipu/core';
 import { useMutation, useQueryClient } from '@tanstack/react-query';
 import { Link, useNavigate } from '@tanstack/react-router';
-import { useState } from 'react';
+import { useState, type MouseEvent } from 'react';
 import { useTranslation } from 'react-i18next';
 import { useSession } from '../app/session';
 import { Cover, TrackList } from '../entities/catalog';
 import { PlaylistEditor, playlistInput, usePlaylist, usePlaylists, type Playlist } from '../entities/playlists';
+import type { components } from '@pipu/api-client';
 import { usePlayer } from '../player/context';
 import { useErrorText } from '../shared/lib/errors';
 import { formatDuration } from '../shared/lib/format';
-import { Button, Dialog, Field, FormError } from '../shared/ui/ui';
-import { playIcon, shuffleIcon } from '../shared/ui/icons';
+import { Button, Dialog, EmptyState, Field, FormError, Icon, PageSkeleton } from '../shared/ui/ui';
+import { playIcon, playlistAddIcon, searchIcon, shuffleIcon } from '../shared/ui/icons';
 import c from './catalog.module.css';
 import s from './page.module.css';
 import p from './playlists.module.css';
@@ -27,13 +28,16 @@ export function PlaylistsPage() {
     <header className={s.toolbar}><h1>{t('playlists.title')}</h1><Button variant="primary" onClick={() => setCreate(true)}>{t('playlists.create')}</Button></header>
     <Field label={t('playlists.search')} value={search} onChange={setSearch} type="search" />
     <FormError>{list.error ? errorText(list.error) : null}</FormError>
-    {list.isPending && <p role="status">{t('playlists.loading')}</p>}
-    {list.isSuccess && !items.length && <p className={s.empty}>{t(search ? 'playlists.no_results' : 'playlists.empty')}</p>}
-    <div className={p.grid}>{items.map(item => <Link key={item.id} to="/playlist/$id" params={{ id: item.id }} className={p.card}>
-      <Cover album={item} size="100%" />
-      <strong>{item.name}</strong><span>{t('catalog.track_count', { count: item.track_count })} · {formatDuration(item.duration_ms)}</span>
-      {item.description && <span className={p.description}>{item.description}</span>}
-    </Link>)}</div>
+    {list.isPending && <PageSkeleton />}
+    {list.isSuccess && !items.length && (
+      <EmptyState
+        icon={search ? searchIcon : playlistAddIcon}
+        action={!search ? <Button variant="primary" onClick={() => setCreate(true)}>{t('playlists.create')}</Button> : undefined}
+      >
+        {t(search ? 'playlists.no_results' : 'playlists.empty')}
+      </EmptyState>
+    )}
+    <div className={p.grid}>{items.map(item => <PlaylistCard key={item.id} item={item} />)}</div>
     {create && <PlaylistEditor onClose={() => setCreate(false)} onSaved={item => { setCreate(false); void navigate({ to: '/playlist/$id', params: { id: item.id } }); }} />}
   </div>;
 }
@@ -45,7 +49,7 @@ export function PlaylistPage({ id }: { id: string }) {
   return <div className={s.page}>
     <Link to="/collection/playlists">← {t('playlists.title')}</Link>
     <FormError>{query.error ? errorText(query.error) : null}</FormError>
-    {query.isPending && <p role="status">{t('playlists.loading')}</p>}
+    {query.isPending && <PageSkeleton />}
     {query.data && <PlaylistDetail key={id} playlist={query.data} />}
   </div>;
 }
@@ -93,7 +97,11 @@ function PlaylistDetail({ playlist }: { playlist: Playlist }) {
       <Button variant="ghost" disabled={save.isPending} onClick={() => setRemove(true)}>{t('playlists.delete')}</Button>
     </div>
     <FormError>{save.error ? errorText(save.error) : null}</FormError>
-    {!playlist.tracks.length && <div className={s.empty}><p>{t('playlists.empty_tracks')}</p><Link to="/search" search={{ q: '' }}>{t('playlists.find_tracks')}</Link></div>}
+    {!playlist.tracks.length && (
+      <EmptyState icon={playlistAddIcon} action={<Link to="/search" search={{ q: '' }}>{t('playlists.find_tracks')}</Link>}>
+        {t('playlists.empty_tracks')}
+      </EmptyState>
+    )}
     <TrackList tracks={playlist.tracks} showAlbum context={context} lead={(_, i) => String(i + 1)}
       actions={manage ? (track, i) => <span className={p.actions}>
         <button type="button" disabled={i === 0 || save.isPending} aria-label={t('playlists.move_up', { name: track.title })} onClick={() => move(i, -1)}>↑</button>
@@ -101,9 +109,52 @@ function PlaylistDetail({ playlist }: { playlist: Playlist }) {
         <button type="button" disabled={save.isPending} aria-label={t('playlists.remove_track', { name: track.title })} onClick={() => save.mutate(playlist.tracks.filter(x => x.id !== track.id).map(x => x.id))}>×</button>
       </span> : undefined} />
     {edit && <PlaylistEditor playlist={playlist} onClose={() => setEdit(false)} onSaved={() => setEdit(false)} />}
-    {remove && <Dialog title={t('playlists.delete')} onClose={() => { if (!deletion.isPending) setRemove(false); }} footer={<>
-      <Button disabled={deletion.isPending} onClick={() => setRemove(false)}>{t('form.cancel')}</Button>
-      <Button variant="danger" busy={deletion.isPending} onClick={() => deletion.mutate()}>{t('playlists.delete')}</Button>
-    </>}><p>{t('playlists.delete_confirm', { name: playlist.name })}</p><FormError>{deletion.error ? errorText(deletion.error) : null}</FormError></Dialog>}
+    {remove && (
+      <Dialog
+        title={t('playlists.delete')}
+        onClose={() => {
+          if (!deletion.isPending) setRemove(false);
+        }}
+        footer={
+          <>
+            <Button disabled={deletion.isPending} onClick={() => setRemove(false)}>{t('form.cancel')}</Button>
+            <Button variant="danger" busy={deletion.isPending} onClick={() => deletion.mutate()}>{t('playlists.delete')}</Button>
+          </>
+        }
+      >
+        <p>{t('playlists.delete_confirm', { name: playlist.name })}</p>
+        <FormError>{deletion.error ? errorText(deletion.error) : null}</FormError>
+      </Dialog>
+    )}
   </>;
 }
+
+function PlaylistCard({ item }: { item: components['schemas']['PlaylistSummary'] }) {
+  const { t } = useTranslation();
+  const session = useSession();
+  const player = usePlayer();
+  const play = (e: MouseEvent) => {
+    e.preventDefault();
+    e.stopPropagation();
+    void (async () => {
+      const full = unwrap(await session.client.GET('/api/v1/me/playlists/{id}', { params: { path: { id: item.id } } }));
+      const tracks = full.tracks.filter((x) => x.available);
+      if (tracks.length) player.playList(tracks, 0, { type: 'collection', id: item.id, label: item.name });
+    })();
+  };
+  return (
+    <Link to="/playlist/$id" params={{ id: item.id }} className={p.card}>
+      <span className={p.coverWrap}>
+        <Cover album={item} size="100%" />
+        {item.track_count > 0 && (
+          <button type="button" className={p.play} aria-label={t('catalog.play')} onClick={play}>
+            <Icon src={playIcon} size={22} />
+          </button>
+        )}
+      </span>
+      <strong>{item.name}</strong>
+      <span>{t('catalog.track_count', { count: item.track_count })} · {formatDuration(item.duration_ms)}</span>
+      {item.description && <span className={p.description}>{item.description}</span>}
+    </Link>
+  );
+}