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https://github.com/20kaushik02/spotify-manager.git
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109 lines
3.3 KiB
JavaScript
109 lines
3.3 KiB
JavaScript
const typedefs = require("../typedefs");
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/** @type {RegExp} */
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const base62Pattern = /^[A-Za-z0-9]+$/;
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/**
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* Returns type and ID from a Spotify URI
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* @see {@link https://developer.spotify.com/documentation/web-api/concepts/spotify-uris-ids|Spotify URIs and IDs}
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* @param {string} uri Spotify URI - can be of an album, track, playlist, user, episode, etc.
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* @returns {typedefs.UriObject}
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* @throws {TypeError} If the input is not a valid Spotify URI
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*/
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const parseSpotifyUri = (uri) => {
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const parts = uri.split(":");
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if (parts[0] !== "spotify") {
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throw new TypeError(`${uri} is not a valid Spotify URI`);
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}
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let type = parts[1];
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if (type === "local") {
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// Local file format: spotify:local:<artist>:<album>:<title>:<duration>
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let idParts = parts.slice(2);
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if (idParts.length < 4) {
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throw new TypeError(`${uri} is not a valid local file URI`);
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}
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// URL decode artist, album, and title
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const artist = decodeURIComponent(idParts[0] || '');
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const album = decodeURIComponent(idParts[1] || '');
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const title = decodeURIComponent(idParts[2]);
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const duration = parseInt(idParts[3], 10);
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if (isNaN(duration)) {
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throw new TypeError(`${uri} has an invalid duration`);
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}
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return { type: "track", is_local: true, artist, album, title, duration };
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} else {
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// Not a local file
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if (parts.length !== 3) {
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throw new TypeError(`${uri} is not a valid Spotify URI`);
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}
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const id = parts[2];
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if (!base62Pattern.test(id)) {
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throw new TypeError(`${uri} has an invalid ID`);
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}
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return { type, is_local: false, id };
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}
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}
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/**
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* Returns type and ID from a Spotify link
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* @see {@link https://developer.spotify.com/documentation/web-api/concepts/spotify-uris-ids|Spotify URIs and IDs}
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* @param {string} link Spotify URL - can be of an album, track, playlist, user, episode, etc.
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* @returns {typedefs.UriObject}
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* @throws {TypeError} If the input is not a valid Spotify link
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*/
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const parseSpotifyLink = (link) => {
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const localPattern = /^https:\/\/open\.spotify\.com\/local\/([^\/]*)\/([^\/]*)\/([^\/]+)\/(\d+)$/;
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const standardPattern = /^https:\/\/open\.spotify\.com\/([^\/]+)\/([^\/?]+)/;
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if (localPattern.test(link)) {
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// Local file format: https://open.spotify.com/local/artist/album/title/duration
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const matches = link.match(localPattern);
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if (!matches) {
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throw new TypeError(`${link} is not a valid Spotify local file link`);
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}
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// URL decode artist, album, and title
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const artist = decodeURIComponent(matches[1] || '');
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const album = decodeURIComponent(matches[2] || '');
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const title = decodeURIComponent(matches[3]);
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const duration = parseInt(matches[4], 10);
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if (isNaN(duration)) {
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throw new TypeError(`${link} has an invalid duration`);
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}
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return { type: "track", is_local: true, artist, album, title, duration };
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} else if (standardPattern.test(link)) {
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// Not a local file
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const matches = link.match(standardPattern);
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if (!matches || matches.length < 3) {
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throw new TypeError(`${link} is not a valid Spotify link`);
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}
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const type = matches[1];
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const id = matches[2];
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if (!base62Pattern.test(id)) {
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throw new TypeError(`${link} has an invalid ID`);
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}
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return { type, is_local: false, id };
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} else {
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throw new TypeError(`${link} is not a valid Spotify link`);
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}
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}
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module.exports = {
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parseSpotifyUri,
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parseSpotifyLink
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}
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