75 lines
2.6 KiB
TypeScript
75 lines
2.6 KiB
TypeScript
export const SEARCH_FILTERS = ['Todo', 'Canciones', 'Álbumes', 'Playlists', 'Usuarios'] as const;
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export type SearchFilter = (typeof SEARCH_FILTERS)[number];
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export const SEARCH_GROUP_PREVIEW = 4;
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export function showGroup(filter: SearchFilter, label: Exclude<SearchFilter, 'Todo'>) {
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return filter === 'Todo' || filter === label;
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}
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export function capped<T>(filter: SearchFilter, list: T[]) {
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return filter === 'Todo' ? list.slice(0, SEARCH_GROUP_PREVIEW) : list;
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}
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export function matchPlaylists<T extends { name: string }>(playlists: T[], query: string): T[] {
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return query ? playlists.filter((p) => p.name.toLowerCase().includes(query.toLowerCase())) : [];
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}
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export function searchCounts(counts: {
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tracks: number;
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albums: number;
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playlists: number;
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users: number;
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}) {
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return {
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Canciones: counts.tracks,
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Álbumes: counts.albums,
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Playlists: counts.playlists,
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Usuarios: counts.users
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};
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}
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export function searchChips(counts: ReturnType<typeof searchCounts>) {
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const total = counts.Canciones + counts.Álbumes + counts.Playlists + counts.Usuarios;
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return SEARCH_FILTERS.map((label) => ({
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label,
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count: label === 'Todo' ? total : counts[label]
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}));
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}
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export type TopResult<Track, Album, Playlist, User> =
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| { kind: 'track'; track: Track }
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| { kind: 'album'; album: Album }
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| { kind: 'playlist'; playlist: Playlist }
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| { kind: 'user'; user: User };
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export function findTopResult<
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Track extends { title: string },
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Album extends { title: string },
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Playlist extends { name: string },
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User extends { name: string }
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>(params: {
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query: string;
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tracks: Track[];
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albums: Album[];
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playlists: Playlist[];
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users: User[];
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}): TopResult<Track, Album, Playlist, User> | null {
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const q = params.query.trim().toLowerCase();
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const startsWithQuery = (value: string) => value.toLowerCase().startsWith(q);
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const userHit = params.users.find((u) => startsWithQuery(u.name));
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if (userHit) return { kind: 'user', user: userHit };
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const trackHit = params.tracks.find((track) => startsWithQuery(track.title));
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if (trackHit) return { kind: 'track', track: trackHit };
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const albumHit = params.albums.find((album) => startsWithQuery(album.title));
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if (albumHit) return { kind: 'album', album: albumHit };
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const playlistHit = params.playlists.find((p) => startsWithQuery(p.name));
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if (playlistHit) return { kind: 'playlist', playlist: playlistHit };
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if (params.users.length) return { kind: 'user', user: params.users[0] };
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if (params.tracks.length) return { kind: 'track', track: params.tracks[0] };
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if (params.albums.length) return { kind: 'album', album: params.albums[0] };
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if (params.playlists.length) return { kind: 'playlist', playlist: params.playlists[0] };
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return null;
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}
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