nowplaying: half-assed lastfm support

src/commands/nowplaying.ts

@@ -4,52 +4,94 @@ import {
     ApplicationIntegrationType,
     ButtonBuilder,
     ButtonStyle,
-    ChatInputCommandInteraction, ContainerBuilder,
+    ChatInputCommandInteraction,
     EmbedBuilder,
     MessageFlags,
-    InteractionContextType, type MessageActionRowComponentBuilder, MessageFlagsBitField,
-    SlashCommandBuilder, TextDisplayBuilder, SectionBuilder, ThumbnailBuilder, type ButtonInteraction
+    InteractionContextType, type MessageActionRowComponentBuilder,
+    SlashCommandBuilder
 } from "discord.js";
 
-import { getSongOnPreferredProvider, kyzaify, lobotomizedSongButton, musicCache, nowPlayingView, type Song } from "../music.ts"
+import { getSongOnPreferredProvider, lobotomizedSongButton, musicCache, nowPlayingView } from "../music.ts"
 import { type Config } from "../config.ts";
 import { hash } from "crypto"
 
+async function getNowPlaying(username: string, lastFMApiKey?: string): Promise<{
+    songName: string, artistName: string, link: string
+} | false | undefined> {
+    if (!lastFMApiKey) {
+        const res = await fetch(`https://api.listenbrainz.org/1/user/${username}/playing-now`).then((res) => res.json());
+        if (!res?.payload) return
+        else if (res.payload.count === 0) return false
+        else {
+            const trackMetadata = res.payload.listens[0].track_metadata
+            return {
+                songName: trackMetadata.artist_name,
+                artistName: trackMetadata.track_name,
+                link: trackMetadata.additional_info.origin_url
+            }
+        }
+    } else {
+        const res = await fetch(`https://ws.audioscrobbler.com/2.0/?method=user.getrecenttracks&user=${username}&api_key=${lastFMApiKey}&limit=1&format=json`)
+            .then((res) => res.json());
+        if (!res?.recenttracks) return
+        else if (!res.recenttracks?.track?.[0]) return false
+        else {
+            const track = res.recenttracks.track[0]
+            // yes its a string, horror
+            if (track["@attr"]?.nowplaying !== "true") return false
+            // it also doesnt provide a streaming platform url, im sorry i have to do this
+            const page = await (await fetch(track.url)).text()
+            const [, link] = page.match(/class="header-new-playlink"\s+href="(.+?)"/m) || []
+            return {
+                songName: track.name,
+                artistName: track.artist["#text"],
+                link
+            }
+        }
+    }
+}
+
 export default class PingCommand extends Command {
     async run(interaction: ChatInputCommandInteraction, config: Config): Promise<void> {
         await interaction.deferReply()
         const user = interaction.options.getString("user") ?? config.listenbrainzAccount;
         const lobotomized = interaction.options.getBoolean("lobotomized") ?? config.commandDefaults.nowplaying.lobotomized;
-        const usesonglink = interaction.options.getBoolean("usesonglink") ?? config.commandDefaults.nowplaying.useSonglink
-        const useitunes = interaction.options.getBoolean("useitunes") ?? config.commandDefaults.nowplaying.useItunes
-        const meow = await fetch(`https://api.listenbrainz.org/1/user/${user}/playing-now`).then((res) => res.json());
-        if (!meow) {
+        const useLastFM = interaction.options.getBoolean("uselastfm") ?? config.commandDefaults.nowplaying.useLastFM
+        let useSonglink = interaction.options.getBoolean("usesonglink") ?? config.commandDefaults.nowplaying.useSonglink
+        const useiTunes = interaction.options.getBoolean("useitunes") ?? config.commandDefaults.nowplaying.useItunes
+
+        const nowPlaying = await getNowPlaying(user, useLastFM ? config.lastFMApiKey : undefined)
+        if (typeof nowPlaying === "undefined") {
+            await interaction.followUp("something shat itself!");
+            return;
+        } else if (!nowPlaying) {
+            await interaction.followUp(user + " isn't listening to music");
+            return
+        } else {
+            const paramsObj = { entity: "song", term: `${nowPlaying.artistName} ${nowPlaying.songName}` };
+            const searchParams = new URLSearchParams(paramsObj);
+            let { link } = nowPlaying
+            if (useiTunes) {
+                const itunesinfo = (await (await fetch(`https://itunes.apple.com/search?${searchParams.toString()}`)).json()).results[0];
+                link = itunesinfo?.trackViewUrl
+                if (!link) {
                     await interaction.followUp("something shat itself!");
                     return;
                 }
-        if (meow.payload.count === 0) {
-            await interaction.followUp(user + " isnt listening to music");
-        } else {
-            const track_metadata = meow.payload.listens[0].track_metadata
-            const paramsObj = { entity: "song", term: track_metadata.artist_name + " " + track_metadata.track_name };
-            const searchParams = new URLSearchParams(paramsObj);
-            let link = track_metadata.additional_info.origin_url
-            if (useitunes) {
-                const itunesinfo = (await (await fetch(`https://itunes.apple.com/search?${searchParams.toString()}`)).json()).results[0];
-                link = itunesinfo.trackViewUrl
             }
 
+            if (!link) useSonglink = false
             let preferredApi, songlink, isCached = false
-            if (musicCache[link]) {
+            if (link && musicCache[link]) {
                 preferredApi = musicCache[link].preferredApi
                 songlink = musicCache[link].songlink
                 isCached = true
-            } else {
+            } else if (useSonglink) {
                 songlink = await fetch(`https://api.song.link/v1-alpha.1/links?url=${link}`).then(a => a.json())
                 preferredApi = getSongOnPreferredProvider(songlink, link)
             }
 
-            if (preferredApi && usesonglink) {
+            if (preferredApi && useSonglink) {
                 if (!isCached) musicCache[link] ??= {
                     preferredApi,
                     songlink
@@ -72,7 +114,7 @@ export default class PingCommand extends Command {
                     ];
                     await interaction.followUp({
                         content: `### ${preferredApi.title.replace(/([#*_~`|])/g, "\\$1")} ${emoji}\n-# by ${preferredApi.artist}`,
-                        components: components,
+                        components,
                     })
                     // we dont have infinite emoji slots
                     await emoji.delete()
@@ -86,9 +128,9 @@ export default class PingCommand extends Command {
             } else {
                 const embedfallback = new EmbedBuilder()
                     .setAuthor({
-                        name: meow.payload.listens[0].track_metadata.artist_name
+                        name: nowPlaying.artistName
                     })
-                    .setTitle(meow.payload.listens[0].track_metadata.track_name)
+                    .setTitle(nowPlaying.songName)
                     .setFooter({
                         text: "song.link proxying was turned off or failed - amy jr",
                     });
@@ -112,11 +154,14 @@ export default class PingCommand extends Command {
         .addBooleanOption(option => {
             return option.setName("usesonglink").setDescription("use songlink or not").setRequired(false)
         })
+        .addBooleanOption(option => {
+            return option.setName("uselastfm").setDescription("use last.fm or not").setRequired(false)
+        })
         .addBooleanOption(option => {
             return option.setName("useitunes").setDescription("use itunes or not").setRequired(false)
         })
         .addStringOption(option => {
-            return option.setName("user").setDescription("listenbrainz username").setRequired(false)
+            return option.setName("user").setDescription("username").setRequired(false)
         })
         .setContexts([
             InteractionContextType.BotDM,

src/config.ts

@@ -4,6 +4,7 @@ import { PrismaClient } from "./generated/prisma/index.js";
 const configT = z.object({
   token: z.string(),
   listenbrainzAccount: z.string(),
+  lastFMApiKey: z.string(),
   gitapi: z.string(),
   sharkeyInstance: z.string(),
   radioURL: z.string(),
@@ -13,7 +14,8 @@ const configT = z.object({
     nowplaying: z.object({
       lobotomized: z.boolean(),
       useSonglink: z.boolean(),
-      useItunes: z.boolean()
+      useItunes: z.boolean(),
+      useLastFM: z.boolean()
     }),
     pat: z.object({
       speed: z.number(),