Mood-Based Music & Quote MCP Server

// src/clients/spotifyClient.ts import SpotifyWebApi from "spotify-web-api-node"; import { config } from "../config/env"; import { logger } from "../utils/logger"; const spotifyApi = new SpotifyWebApi({ clientId: config.spotify.clientId, clientSecret: config.spotify.clientSecret, }); async function ensureAccessToken() { if (!config.spotify.clientId || !config.spotify.clientSecret) { throw new Error("Missing Spotify client credentials in .env"); } const tokenData = await spotifyApi.clientCredentialsGrant(); spotifyApi.setAccessToken(tokenData.body.access_token); } type TrackInfo = { name: string; artists: string; url?: string; }; export async function getPlaylistForMood(mood: string): Promise<TrackInfo[]> { await ensureAccessToken(); const query = mood || "happy"; const search = await spotifyApi.searchPlaylists(query, { limit: 5 }); // Log raw response once to understand structure (will show in terminal) console.log("Spotify playlists search result:", JSON.stringify(search.body.playlists, null, 2)); const rawItems = search.body.playlists?.items ?? []; // Filter out any null/undefined items const playlists = (rawItems as any[]).filter((p) => p && p.id); if (playlists.length === 0) { logger.warn({ mood, query, raw: search.body.playlists }, "No valid playlists found"); return []; } const first = playlists[0]; const playlistId = first.id as string; const playlistTracks = await spotifyApi.getPlaylistTracks(playlistId, { limit: 10, }); const trackItems = (playlistTracks.body.items ?? []) as any[]; return trackItems .map((item) => { const track = item?.track; if (!track) return null; const artistsArr = (track.artists ?? []) as any[]; return { name: track.name as string, artists: artistsArr.map((a) => a.name as string).join(", "), url: track.external_urls?.spotify as string | undefined, }; }) .filter(Boolean) as TrackInfo[]; } // keep compatibility with old name export const getTracksForMood = getPlaylistForMood;