Artist Tags

src/formatter.ts

@@ -29,6 +29,19 @@ export function format(playList:Playlist, trackIndex:number, formatString:string
     return formatString
 }
 
+export function buildTags(playlist: Playlist): string[] {
+    const tags = playlist.tracks
+      .map((track) => track.collectionEntry.artist)
+      .map((artist) => artist.split(','))
+      .flat()
+      .map((artist) => artist.replace(/\(.*$/g, ''))
+      .map((artist) => artist.split('&'))
+      .flat()
+      .map((artist) => artist.trim().replace(/\s+/g, ''))
+      .map((artist) => `#${artist.toLocaleLowerCase()}`)
+
+    return [...new Set(tags)]
+  }
 
 /**
  * Converts a playlist to a human readable form.
@@ -38,6 +51,10 @@ export function format(playList:Playlist, trackIndex:number, formatString:string
 export function playlistToReadable(playlist:Playlist, FORMAT_STRING:string): string {
     const result = []
 
+    result.push('Artist Tags')
+    result.push(buildTags(playlist).join(' '))
+    result.push('')
+
     result.push(playlist.name)
 
     playlist.tracks

test/specs/test.tags.ts

@@ -0,0 +1,21 @@
+import { expect } from 'chai'
+import * as fs from 'fs'
+import { Archive, Playlist } from '../../src/parsers/archive'
+import { TraktorParser } from '../../src/parsers/traktor'
+import { buildTags } from '../../src/formatter'
+require('jsdom-global')()
+global.DOMParser = window.DOMParser
+
+describe('Track Tags', () => {
+  it('are generated', () => {
+      const p = `${__dirname}/../files/Rezidence28.nml`;
+      const fileContents = fs.readFileSync(p, 'utf8')
+      const parser = new TraktorParser(fileContents)
+      const archive:Archive = parser.parse() as Archive
+
+      let playlist = archive.playlists[0] as Playlist
+      const tags = buildTags(playlist)
+      expect(tags.length).to.eq(24)
+      expect(tags.indexOf('#marsh')).to.not.eq(-1)
+  })
+})