export_itl.swift

import iTunesLibrary
import Foundation

let library = try ITLibrary(apiVersion: "1.0")

let localPlaylists = library.allPlaylists

var result: [String: [Any]] = [:]
var playlists: [Any] = []

for playlist in localPlaylists {
    var list = [String: Any]()
    var entries: [Any] = []

    if ["Library", "Music"].contains(playlist.name) {
        continue
    }

    list["name"] = playlist.name

    for song in playlist.items {
        var entry = [String: Any]()

        entry["album"] = song.album.title
        entry["artist"] = song.artist.name
        entry["rating"] = song.rating
        entry["title"] = song.title
        entry["trackNumber"] = song.trackNumber

        entries.append(entry)
    }

    list["entries"] = entries
    playlists.append(list)
}

result["playlists"] = playlists

let data: Data = try JSONSerialization.data(withJSONObject: result, options:[])
print(String(data: data, encoding: .utf8)! as Any)