R3ap3r
3178b8f4f7
- Spotify playlist, library, album and artist browsing with in-app playback - Song, playlist and album downloads via spotdl with YouTube and Bandcamp fallbacks - Electron desktop app (castLabs Widevine) with a permanent sidebar layout - Linux and Windows packaging scripts
42 lines
1022 B
TypeScript
42 lines
1022 B
TypeScript
export type LibraryIdentityInput = {
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isrc?: string;
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title?: string;
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artist?: string;
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album?: string;
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};
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function normalize(value?: string) {
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return (value || "")
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.toLowerCase()
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.normalize("NFKD")
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.replace(/[\u0300-\u036f]/g, "")
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.replace(/[^a-z0-9]+/g, " ")
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.trim();
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}
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export function makeLibraryIdentity(input: LibraryIdentityInput) {
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if (input.isrc?.trim()) return `isrc:${input.isrc.trim().toUpperCase()}`;
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return [
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"meta",
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normalize(input.artist),
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normalize(input.title),
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normalize(input.album),
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].join(":");
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}
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export function findDuplicateIdentities(items: LibraryIdentityInput[]) {
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const seen = new Map<string, number>();
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const duplicates = new Set<number>();
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items.forEach((item, index) => {
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const identity = makeLibraryIdentity(item);
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const first = seen.get(identity);
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if (typeof first === "number") {
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duplicates.add(first);
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duplicates.add(index);
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} else {
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seen.set(identity, index);
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}
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});
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return duplicates;
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}
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