feat: add standalone Last.fm integration and settings management
- Implemented standalone Last.fm integration in the settings page. - Added functionality to manage Last.fm credentials, including API key and secret. - Introduced sidebar settings for toggling between expanded and collapsed views. - Enhanced the Navidrome API with new methods for fetching starred items and album songs. - Created a new Favorites page to display starred albums, songs, and artists with play and toggle favorite options. - Added a Badge component for UI consistency across the application.
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244
hooks/use-standalone-lastfm.ts
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244
hooks/use-standalone-lastfm.ts
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import { useCallback, useRef } from 'react';
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interface LastFmCredentials {
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apiKey: string;
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apiSecret: string;
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sessionKey?: string;
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username?: string;
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}
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interface ScrobbleState {
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trackId: string | null;
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hasScrobbled: boolean;
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hasUpdatedNowPlaying: boolean;
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playStartTime: number;
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lastPlayedDuration: number;
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}
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interface Track {
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id: string;
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name: string;
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artist: string;
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albumName?: string;
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duration: number;
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}
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export function useStandaloneLastFm() {
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const scrobbleStateRef = useRef<ScrobbleState>({
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trackId: null,
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hasScrobbled: false,
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hasUpdatedNowPlaying: false,
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playStartTime: 0,
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lastPlayedDuration: 0,
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});
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const getCredentials = (): LastFmCredentials | null => {
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if (typeof window === 'undefined') return null;
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const stored = localStorage.getItem('lastfm-credentials');
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if (!stored) return null;
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try {
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return JSON.parse(stored);
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} catch {
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return null;
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}
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};
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const isEnabled = () => {
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if (typeof window === 'undefined') return false;
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const enabled = localStorage.getItem('standalone-lastfm-enabled');
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const credentials = getCredentials();
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return enabled === 'true' && credentials?.sessionKey;
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};
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const generateApiSignature = (params: Record<string, string>, secret: string): string => {
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const sortedParams = Object.keys(params)
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.sort()
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.map(key => `${key}${params[key]}`)
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.join('');
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// In a real implementation, you'd use a proper crypto library
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// For demo purposes, this is a simplified version
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return btoa(sortedParams + secret).substring(0, 32);
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};
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const makeLastFmRequest = async (method: string, params: Record<string, string>): Promise<any> => {
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const credentials = getCredentials();
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if (!credentials) throw new Error('No Last.fm credentials');
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const requestParams: Record<string, string> = {
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...params,
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method,
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api_key: credentials.apiKey,
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sk: credentials.sessionKey || '',
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format: 'json'
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};
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const signature = generateApiSignature(requestParams, credentials.apiSecret);
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requestParams.api_sig = signature;
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const formData = new FormData();
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Object.entries(requestParams).forEach(([key, value]) => {
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formData.append(key, value);
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});
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const response = await fetch('https://ws.audioscrobbler.com/2.0/', {
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method: 'POST',
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body: formData
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});
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if (!response.ok) {
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throw new Error(`Last.fm API error: ${response.statusText}`);
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}
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return response.json();
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};
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const updateNowPlaying = useCallback(async (track: Track) => {
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if (!isEnabled()) return;
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try {
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await makeLastFmRequest('track.updateNowPlaying', {
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track: track.name,
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artist: track.artist,
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album: track.albumName || '',
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duration: track.duration.toString()
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});
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scrobbleStateRef.current.hasUpdatedNowPlaying = true;
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console.log('Updated now playing on Last.fm:', track.name);
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} catch (error) {
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console.error('Failed to update now playing on Last.fm:', error);
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}
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}, []);
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const scrobbleTrack = useCallback(async (track: Track, timestamp?: number) => {
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if (!isEnabled()) return;
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try {
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await makeLastFmRequest('track.scrobble', {
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'track[0]': track.name,
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'artist[0]': track.artist,
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'album[0]': track.albumName || '',
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'timestamp[0]': (timestamp || Math.floor(Date.now() / 1000)).toString()
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});
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console.log('Scrobbled track to Last.fm:', track.name);
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} catch (error) {
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console.error('Failed to scrobble track to Last.fm:', error);
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}
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}, []);
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const shouldScrobble = (playedDuration: number, totalDuration: number): boolean => {
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// Last.fm scrobbling rules:
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// - At least 30 seconds played OR
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// - At least half the track played (whichever is lower)
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const minimumTime = Math.min(30, totalDuration / 2);
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return playedDuration >= minimumTime;
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};
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const onTrackStart = useCallback(async (track: Track) => {
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// Reset scrobble state for new track
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scrobbleStateRef.current = {
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trackId: track.id,
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hasScrobbled: false,
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hasUpdatedNowPlaying: false,
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playStartTime: Date.now(),
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lastPlayedDuration: 0,
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};
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// Update now playing on Last.fm
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await updateNowPlaying(track);
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}, [updateNowPlaying]);
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const onTrackPlay = useCallback(async (track: Track) => {
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scrobbleStateRef.current.playStartTime = Date.now();
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// Update now playing if we haven't already for this track
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if (!scrobbleStateRef.current.hasUpdatedNowPlaying || scrobbleStateRef.current.trackId !== track.id) {
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await onTrackStart(track);
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}
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}, [onTrackStart]);
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const onTrackPause = useCallback((currentTime: number) => {
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const now = Date.now();
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const sessionDuration = (now - scrobbleStateRef.current.playStartTime) / 1000;
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scrobbleStateRef.current.lastPlayedDuration += sessionDuration;
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}, []);
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const onTrackProgress = useCallback(async (track: Track, currentTime: number, duration: number) => {
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if (!isEnabled() || scrobbleStateRef.current.hasScrobbled) return;
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// Calculate total played time
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const now = Date.now();
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const currentSessionDuration = (now - scrobbleStateRef.current.playStartTime) / 1000;
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const totalPlayedDuration = scrobbleStateRef.current.lastPlayedDuration + currentSessionDuration;
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// Check if we should scrobble
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if (shouldScrobble(totalPlayedDuration, duration)) {
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await scrobbleTrack(track);
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scrobbleStateRef.current.hasScrobbled = true;
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}
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}, [scrobbleTrack]);
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const onTrackEnd = useCallback(async (track: Track, currentTime: number, duration: number) => {
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if (!isEnabled()) return;
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// Calculate final played duration
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const now = Date.now();
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const finalSessionDuration = (now - scrobbleStateRef.current.playStartTime) / 1000;
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const totalPlayedDuration = scrobbleStateRef.current.lastPlayedDuration + finalSessionDuration;
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// Scrobble if we haven't already and the track qualifies
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if (!scrobbleStateRef.current.hasScrobbled && shouldScrobble(totalPlayedDuration, duration)) {
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await scrobbleTrack(track);
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}
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}, [scrobbleTrack]);
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const getAuthUrl = (apiKey: string): string => {
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return `http://www.last.fm/api/auth/?api_key=${apiKey}&cb=${encodeURIComponent(window.location.origin + '/settings')}`;
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};
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const getSessionKey = async (token: string, apiKey: string, apiSecret: string): Promise<{ sessionKey: string; username: string }> => {
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const params: Record<string, string> = {
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method: 'auth.getSession',
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token,
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api_key: apiKey,
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format: 'json'
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};
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const signature = generateApiSignature(params, apiSecret);
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const url = new URL('https://ws.audioscrobbler.com/2.0/');
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Object.entries({ ...params, api_sig: signature }).forEach(([key, value]) => {
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url.searchParams.append(key, value);
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});
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const response = await fetch(url.toString());
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if (!response.ok) {
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throw new Error(`Last.fm auth error: ${response.statusText}`);
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}
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const data = await response.json();
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if (data.error) {
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throw new Error(data.message || 'Last.fm authentication failed');
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}
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return {
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sessionKey: data.session.key,
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username: data.session.name
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};
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};
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return {
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onTrackStart,
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onTrackPlay,
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onTrackPause,
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onTrackProgress,
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onTrackEnd,
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isEnabled,
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getCredentials,
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getAuthUrl,
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getSessionKey
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};
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}
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