Spotify Work + Error Language = EN - US

play-dl/Spotify/classes.ts

@@ -1,3 +1,5 @@
+import got, { Response } from "got/dist/source";
+import { SpotifyDataOptions } from ".";
 
 
 interface SpotifyTrackAlbum{
@@ -90,8 +92,10 @@ export class SpotifyPlaylist{
     id : string;
     thumbnail : SpotifyThumbnail;
     owner : SpotifyArtists;
-    tracks : SpotifyVideo[]
-    constructor(data : any){
+    tracksCount : number;
+    private spotifyData : SpotifyDataOptions;
+    private fetched_tracks : Map<string, SpotifyVideo[]>
+    constructor(data : any, spotifyData : SpotifyDataOptions){
         this.name = data.name
         this.type = "playlist"
         this.collaborative = data.collaborative
@@ -104,11 +108,56 @@ export class SpotifyPlaylist{
             url : data.owner.external_urls.spotify,
             id : data.owner.id
         }
+        this.tracksCount = Number(data.tracks.total)
         let videos: SpotifyVideo[] = []
         data.tracks.items.forEach((v : any) => {
             videos.push(new SpotifyVideo(v.track))
         })
-        this.tracks = videos
+        this.fetched_tracks = new Map()
+        this.fetched_tracks.set('1', videos)
+        this.spotifyData = spotifyData
+    }
+
+    async fetch(){
+        let fetching : number;
+        if(this.tracksCount > 1000) fetching = 1000
+        else fetching = this.tracksCount
+        if(fetching <= 100) return
+        let work = []
+        for(let i = 2; i <= Math.ceil(fetching/100); i++){
+            work.push(new Promise(async (resolve, reject) => {
+                let response = await got(`https://api.spotify.com/v1/playlists/${this.id}/tracks?offset=${(i-1)*100}&limit=100&market=${this.spotifyData.market}`, {
+                    headers : {
+                        "Authorization" : `${this.spotifyData.token_type} ${this.spotifyData.access_token}`
+                    }
+                }).catch((err) => reject(`Response Error : \n${err}`))
+                let videos: SpotifyVideo[] = []
+                let res = response as Response<string>
+                let json_data = JSON.parse(res.body)
+                json_data.items.forEach((v : any) => {
+                    videos.push(new SpotifyVideo(v.track))
+                })
+                this.fetched_tracks.set(`${i}`, videos)
+                resolve('Success')
+            }))
+        }
+        await Promise.allSettled(work)
+        return this
+    }
+
+    page(num : number){
+        if(!num) throw new Error('Page number is not provided')
+        if(!this.fetched_tracks.has(`${num}`)) throw new Error('Given Page number is invalid')
+        return this.fetched_tracks.get(`${num}`)
+    }
+
+    get total_pages(){
+        return this.fetched_tracks.size
+    }
+
+    get total_tracks(){
+        let page_number: number = this.total_pages
+        return (page_number - 1) * 100 + (this.fetched_tracks.get(`page${page_number}`) as SpotifyVideo[]).length
     }
 
     toJSON(){
@@ -121,7 +170,6 @@ export class SpotifyPlaylist{
             id : this.id,
             thumbnail : this.thumbnail,
             owner : this.owner,
-            tracks : this.tracks
         }
     }
 }
@@ -130,16 +178,19 @@ export class SpotifyAlbum{
     name : string
     type : "track" | "playlist" | "album"
     url : string
+    id : string;
     thumbnail : SpotifyThumbnail
     artists : SpotifyArtists[]
     copyrights : SpotifyCopyright[]
     release_date : string;
     release_date_precision : string;
-    total_tracks : number
-    tracks : SpotifyTracks[]
-    constructor(data : any){
+    trackCount : number
+    private spotifyData : SpotifyDataOptions;
+    private fetched_tracks : Map<string, SpotifyTracks[]>
+    constructor(data : any, spotifyData : SpotifyDataOptions){
         this.name = data.name
         this.type = "album"
+        this.id = data.id
         this.url = data.external_urls.spotify
         this.thumbnail = data.images[0]
         let artists : SpotifyArtists[] = []
@@ -154,12 +205,56 @@ export class SpotifyAlbum{
         this.copyrights = data.copyrights
         this.release_date = data.release_date
         this.release_date_precision = data.release_date_precision
-        this.total_tracks = data.total_tracks
+        this.trackCount = data.total_tracks
         let videos: SpotifyTracks[] = []
         data.tracks.items.forEach((v : any) => {
             videos.push(new SpotifyTracks(v))
         })
-        this.tracks = videos
+        this.fetched_tracks = new Map()
+        this.fetched_tracks.set('1', videos)
+        this.spotifyData = spotifyData
+    }
+
+    async fetch(){
+        let fetching : number;
+        if(this.trackCount > 500) fetching = 500
+        else fetching = this.trackCount
+        if(fetching <= 50) return
+        let work = []
+        for(let i = 2; i <= Math.ceil(fetching/50); i++){
+            work.push(new Promise(async (resolve, reject) => {
+                let response = await got(`https://api.spotify.com/v1/albums/${this.id}/tracks?offset=${(i-1)*50}&limit=50&market=${this.spotifyData.market}`, {
+                    headers : {
+                        "Authorization" : `${this.spotifyData.token_type} ${this.spotifyData.access_token}`
+                    }
+                }).catch((err) => reject(`Response Error : \n${err}`))
+                let videos: SpotifyTracks[] = []
+                let res = response as Response<string>
+                let json_data = JSON.parse(res.body)
+                json_data.items.forEach((v : any) => {
+                    videos.push(new SpotifyTracks(v))
+                })
+                this.fetched_tracks.set(`${i}`, videos)
+                resolve('Success')
+            }))
+        }
+        await Promise.allSettled(work)
+        return this
+    }
+
+    page(num : number){
+        if(!num) throw new Error('Page number is not provided')
+        if(!this.fetched_tracks.has(`${num}`)) throw new Error('Given Page number is invalid')
+        return this.fetched_tracks.get(`${num}`)
+    }
+
+    get total_pages(){
+        return this.fetched_tracks.size
+    }
+
+    get total_tracks(){
+        let page_number: number = this.total_pages
+        return (page_number - 1) * 100 + (this.fetched_tracks.get(`page${page_number}`) as SpotifyVideo[]).length
     }
 
     toJSON(){
@@ -173,7 +268,6 @@ export class SpotifyAlbum{
             release_date : this.release_date,
             release_date_precision : this.release_date_precision,
             total_tracks : this.total_tracks,
-            tracks : this.tracks
         }
     }
 }