Rename to library

src-angular/app/core/services/library.service.ts

@@ -0,0 +1,95 @@
+import { Injectable, Injector } from '@angular/core'
+import { BehaviorSubject } from 'rxjs'
+import { ChartData } from 'src-shared/interfaces/search.interface'
+import { DownloadService } from './download.service'
+
+const LibraryStorageIdentifyer: string = "library"
+
+@Injectable({
+	providedIn: 'root',
+})
+export class LibraryService {
+	private _tracks = new BehaviorSubject<ChartData[]>([])
+	tracks$ = this._tracks.asObservable()
+
+	private _selectedSongs = new BehaviorSubject<ChartData[]>([])
+	selectedSongs$ = this._selectedSongs.asObservable()
+
+	private _downloadService: DownloadService | null = null
+
+	constructor(private injector: Injector) {
+		const library = localStorage.getItem(LibraryStorageIdentifyer)
+
+		if (library) {
+			this._tracks.next(JSON.parse(library))
+		}
+	}
+
+	private get downloadService(): DownloadService {
+		if (!this._downloadService) {
+			this._downloadService = this.injector.get(DownloadService)
+		}
+		return this._downloadService
+	}
+
+	getPlaylist() {
+		return this._tracks.value
+	}
+
+	libraryAdd(chart: ChartData) {
+		const updatedTracks = [...this._tracks.value, chart]
+		this._tracks.next(updatedTracks)
+		localStorage.setItem(LibraryStorageIdentifyer, JSON.stringify(updatedTracks))
+	}
+
+	downloadLibrary(songs: ChartData[]) {
+		songs.forEach(track => {
+			if (!this._tracks.value.includes(track)) {
+				this.downloadService.addDownload(track)
+			}
+		})
+	}
+
+	storeLibrary() {
+		const fakeLink = document.createElement('a')
+		const file = new Blob([JSON.stringify(this._tracks.value)], { type: 'application/json' })
+		fakeLink.href = URL.createObjectURL(file)
+		fakeLink.download = 'songs.library'
+		fakeLink.click()
+	}
+
+	storeSelectedSongs() {
+		const fakeLink = document.createElement('a')
+		const file = new Blob([JSON.stringify(this._selectedSongs.value)], { type: 'application/json' })
+		fakeLink.href = URL.createObjectURL(file)
+		fakeLink.download = 'selected.library'
+		fakeLink.click()
+	}
+
+	addToSelectedSongs(song: ChartData) {
+		const updatedSelectedSongs = [...this._selectedSongs.value, song]
+		this._selectedSongs.next(updatedSelectedSongs)
+	}
+
+	removeFromSelectedSongs(song: ChartData) {
+		const updatedSelectedSongs = this._selectedSongs.value.filter(selectedSong => selectedSong !== song)
+		this._selectedSongs.next(updatedSelectedSongs)
+	}
+
+	clearSelectedSongs() {
+		this._selectedSongs.next([])
+	}
+
+	removeFromPlaylist() {
+		this._selectedSongs.value.forEach(selectedSong => {
+			const updatedTracks = this._tracks.value.filter(track => track !== selectedSong)
+			this._tracks.next(updatedTracks)
+			localStorage.setItem(LibraryStorageIdentifyer, JSON.stringify(updatedTracks))
+		})
+	}
+
+	clearPlaylist() {
+		this._tracks.next([])
+		localStorage.removeItem(LibraryStorageIdentifyer)
+	}
+}