Add whole albums to playlist for tidal

src/lib/server/playlist/tidalPlaylistAdder.ts

@@ -5,8 +5,9 @@ import type { SongInfo } from '$lib/odesliResponse';
 import { createHash } from 'crypto';
 import { OauthPlaylistAdder } from './oauthPlaylistAdder';
 import type { PlaylistAdder } from './playlistAdder';
-import type { TidalAddToPlaylistResponse } from './tidalResponse';
+import type { TidalAddToPlaylistResponse, TidalAlbumResponse } from './tidalResponse';
 import { doesTidalSongExist } from '$lib/server/db';
+import { sleep } from '$lib/sleep';
 
 export class TidalPlaylistAdder extends OauthPlaylistAdder implements PlaylistAdder {
   private static code_verifier?: string;
@@ -98,6 +99,101 @@ export class TidalPlaylistAdder extends OauthPlaylistAdder implements PlaylistAd
     }
   }
 
+  private async getAlbumItems(
+    albumId: string,
+    remaning: number = 3,
+    nextLink?: string
+  ): Promise<{ id: string; type: string }[]> {
+    this.logger.debug('getAlbumItems', albumId, remaning, nextLink);
+    if (remaning <= 0) {
+      return [];
+    }
+
+    const token = await this.refreshToken();
+    if (token == null) {
+      return [];
+    }
+    try {
+      let albumUrl: URL;
+      if (nextLink) {
+        albumUrl = new URL(nextLink);
+      } else {
+        albumUrl = new URL(`${this.apiBase}/albums/${albumId}/relationships/items`);
+        albumUrl.searchParams.append('countryCode', 'DE');
+      }
+
+      const options: RequestInit = {
+        method: 'GET',
+        headers: {
+          Authorization: `${token.token_type} ${token.access_token}`,
+          Accept: 'application/vnd.api+json'
+        }
+      };
+      const request = new Request(albumUrl, options);
+      const resp = await fetch(request);
+      this.processTidalHeaders(resp.headers);
+      if (resp.ok) {
+        const respData: TidalAlbumResponse = await resp.json();
+        if (respData.data !== undefined) {
+          let tracks = respData.data.map((x) => {
+            return { id: x.id, type: x.type };
+          });
+          if (respData.links?.next) {
+            const nextPage = await this.getAlbumItems(albumId, remaning, respData.links.next);
+            tracks = tracks.concat(nextPage);
+          }
+          return tracks;
+        } else {
+          this.logger.error('Error response for album', respData.errors, respData);
+          return [];
+        }
+      } else if (resp.status === 429) {
+        // Tidal docs say, this endpoint uses Retry-After header,
+        // but other endpoints use x-rate-limit headers. Check both
+        let secondsToWait = 0;
+        const retryAfterHeader = resp.headers.get('Retry-After');
+        if (retryAfterHeader) {
+          secondsToWait = parseInt(retryAfterHeader);
+        } else {
+          const remainingTokens = resp.headers.get('x-ratelimit-remaining');
+          const requiredTokens = resp.headers.get('x-ratelimit-requested-tokens');
+          const replenishRate = resp.headers.get('x-ratelimit-replenish-rate');
+          if (remainingTokens !== null && requiredTokens !== null && replenishRate !== null) {
+            const remainingTokensValue = parseInt(remainingTokens);
+            const requiredTokensValue = parseInt(requiredTokens);
+            const replenishRateValue = parseInt(replenishRate);
+            const needToReplenish = requiredTokensValue - remainingTokensValue;
+            secondsToWait = 1 + needToReplenish / replenishRateValue;
+          }
+        }
+        if (secondsToWait === 0) {
+          // Try again secondsToWait sec later, just to be safe one additional second
+          this.logger.warn(
+            'Received HTTP 429 Too Many Requests. Retrying in',
+            secondsToWait,
+            'sec'
+          );
+          await sleep(secondsToWait * 1000);
+          return await this.getAlbumItems(albumId, remaning - 1, nextLink);
+        } else {
+          this.logger.warn(
+            'Received HTTP 429 Too Many Requests, but no instructions on how long to wait. Aborting',
+            secondsToWait,
+            'sec'
+          );
+          return [];
+        }
+      } else {
+        const respText = await resp.text();
+        this.logger.error('Cannot check album contents', resp.status, respText);
+        return [];
+      }
+    } catch (e) {
+      this.logger.error('Error checking album contents', e);
+      return [];
+    }
+  }
+
   private async addToPlaylistRetry(song: SongInfo, remaning: number = 3) {
     if (remaning < 0) {
       this.logger.error('max retries reached, song will not be added to playlist');
@@ -118,6 +214,20 @@ export class TidalPlaylistAdder extends OauthPlaylistAdder implements PlaylistAd
       return;
     }
 
+    let tracks = [
+      {
+        id: song.tidalUri,
+        type: 'tracks'
+      }
+    ];
+    if (song.type === 'album') {
+      tracks = await this.getAlbumItems(song.tidalUri);
+      this.logger.debug('received tracks', tracks);
+      if (tracks.length === 0) {
+        return;
+      }
+    }
+
     const alreadyExists = await doesTidalSongExist(song);
     try {
       if (alreadyExists) {
@@ -137,12 +247,7 @@ export class TidalPlaylistAdder extends OauthPlaylistAdder implements PlaylistAd
         Accept: 'application/vnd.api+json'
       },
       body: JSON.stringify({
-        data: [
-          {
-            id: song.tidalUri,
-            type: 'tracks'
-          }
-        ],
+        data: tracks,
         meta: {
           positionBefore: 'ffb6286e-237a-4dfc-bbf1-2fb0eb004ed5' // Hardcoded last element of list
         }

src/lib/server/playlist/tidalResponse.ts

@@ -2,21 +2,23 @@ export type TidalAddToPlaylistResponse = {
   errors: TidalAddToPlaylistError[];
 };
 
-export type TidalAddToPlaylistError = {
+export type TidalAddToPlaylistError = TidalError & {
   id: string;
   status: number;
-  code: TidalErrorCode;
-  detail: string;
   source: TidalAddToPlaylistErrorSource;
-  meta: TidalAddToPlaylistErrorMeta;
 };
 
 export type TidalAddToPlaylistErrorSource = {
   parameter: string;
 };
-export type TidalAddToPlaylistErrorMeta = {
+export type TidalErrorMeta = {
   category: string;
 };
+export type TidalError = {
+  code: string;
+  detail: string;
+  meta: TidalErrorMeta;
+};
 export type TidalErrorCode =
   | 'INVALID_ENUM_VALUE'
   | 'VALUE_REGEX_MISMATCH'
@@ -27,3 +29,22 @@ export type TidalErrorCode =
   | 'UNAVAILABLE_FOR_LEGAL_REASONS_RESPONSE'
   | 'INTERNAL_SERVER_ERROR'
   | 'UNAUTHORIZED';
+
+export type TidalAlbumResponse = {
+  data?: TidalAlbumTrack[];
+  links?: {
+    next?: string;
+    self: string;
+  };
+  errors?: TidalError[];
+};
+export type TidalAlbumTrack = {
+  id: string;
+  type: 'tracks' | string;
+  meta: TidalAlbumTrackMeta;
+};
+
+export type TidalAlbumTrackMeta = {
+  trackNumber: number;
+  volumeNumber: number;
+};